Bump the ALE version to 3.0.0

Newer versions of pylint will now check your code as you type. Older
versions will still only check the file on disk.

Co-authored-by: Oliver Wiegers <oliver.wiegers@gmail.com>

.appveyor.yml

@@ -19,6 +19,9 @@ init:
   # Stop git from changing newlines
   - git config --global core.autocrlf input
 
+# NOTE: If you change the Vim or Vader versions here, please also update the
+# instructions for running tests on Windows in ale-development.txt
+
 install:
   # Download and unpack Vim
   - ps: >-

.github/stale.yml

@@ -0,0 +1,17 @@
+---
+# This configuration closes stale PRs after 28 + 7 days.
+# That's 4 weeks until stale bot complains, and a week until it closes a PR.
+# Issues in ALE are never, ever stale. They are either resolved or not.
+only: pulls
+daysUntilStale: 28
+daysUntilClose: 7
+exemptLabels: []
+staleLabel: stale
+markComment: >
+  This pull request has been automatically marked as stale because it has not
+  been updated recently. Make sure to write tests and document your changes.
+  See `:help ale-dev` for information on writing tests.
+
+  If your pull request is good to merge, bother w0rp or another maintainer
+  again, and get them to merge it.
+closeComment: false

.gitignore

@@ -1,11 +1,12 @@
 !.editorconfig
 *.obj
+*.pyc
 # Ignore all hidden files everywhere.
 # Use `git add -f` to add hidden files.
 .*
-__pycache__
-*.pyc
 /doc/tags
 /init.vim
 /test/ale-info-test-file
+/vader_output
+__pycache__
 tags

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2016-2019, w0rp <devw0rp@gmail.com>
+Copyright (c) 2016-2020, w0rp <devw0rp@gmail.com>
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without

README.md

@@ -61,23 +61,25 @@ other content at [w0rp.com](https://w0rp.com).
 4. [Contributing](#contributing)
 5. [FAQ](#faq)
     1. [How do I disable particular linters?](#faq-disable-linters)
-    2. [How can I keep the sign gutter open?](#faq-keep-signs)
-    3. [How can I change the signs ALE uses?](#faq-change-signs)
-    4. [How can I change or disable the highlights ALE uses?](#faq-change-highlights)
-    5. [How can I show errors or warnings in my statusline?](#faq-statusline)
-    6. [How can I show errors or warnings in my lightline?](#faq-lightline)
-    7. [How can I change the format for echo messages?](#faq-echo-format)
-    8. [How can I execute some code when ALE starts or stops linting?](#faq-autocmd)
-    9. [How can I navigate between errors quickly?](#faq-navigation)
-    10. [How can I run linters only when I save files?](#faq-lint-on-save)
-    11. [How can I use the quickfix list instead of the loclist?](#faq-quickfix)
-    12. [How can I check JSX files with both stylelint and eslint?](#faq-jsx-stylelint-eslint)
-    13. [How can I check Vue files with ESLint?](#faq-vue-eslint)
-    14. [Will this plugin eat all of my laptop battery power?](#faq-my-battery-is-sad)
-    15. [How can I configure my C or C++ project?](#faq-c-configuration)
-    16. [How can I configure ALE differently for different buffers?](#faq-buffer-configuration)
-    17. [How can I configure the height of the list in which ALE displays errors?](#faq-list-window-height)
-    18. [How can I see what ALE has configured for the current file?](#faq-get-info)
+    2. [How can I see what ALE has configured for the current file?](#faq-get-info)
+    3. [How can I use ALE and coc.nvim together?](#faq-coc-nvim)
+    4. [How can I keep the sign gutter open?](#faq-keep-signs)
+    5. [How can I change the signs ALE uses?](#faq-change-signs)
+    6. [How can I change or disable the highlights ALE uses?](#faq-change-highlights)
+    7. [How can I show errors or warnings in my statusline?](#faq-statusline)
+    8. [How can I show errors or warnings in my lightline?](#faq-lightline)
+    9. [How can I change the format for echo messages?](#faq-echo-format)
+    10. [How can I execute some code when ALE starts or stops linting?](#faq-autocmd)
+    11. [How can I navigate between errors quickly?](#faq-navigation)
+    12. [How can I run linters only when I save files?](#faq-lint-on-save)
+    13. [How can I use the quickfix list instead of the loclist?](#faq-quickfix)
+    14. [How can I check JSX files with both stylelint and eslint?](#faq-jsx-stylelint-eslint)
+    15. [How can I check Vue files with ESLint?](#faq-vue-eslint)
+    16. [Will this plugin eat all of my laptop battery power?](#faq-my-battery-is-sad)
+    17. [How can I configure my C or C++ project?](#faq-c-configuration)
+    18. [How can I configure ALE differently for different buffers?](#faq-buffer-configuration)
+    19. [How can I configure the height of the list in which ALE displays errors?](#faq-list-window-height)
+    20. [How can I run linters or fixers via Docker or a VM?](#faq-vm)
 
 <a name="supported-languages"></a>
 
@@ -102,7 +104,7 @@ programs for checking the syntax and semantics of your programs. By default,
 linters will be re-run in the background to check your syntax when you open
 new buffers or as you make edits to your files.
 
-The behaviour of linting can be configured with a variety of options,
+The behavior of linting can be configured with a variety of options,
 documented in [the Vim help file](doc/ale.txt). For more information on the
 options ALE offers, consult `:help ale-options` for global options and `:help
 ale-integration-options` for options specified to particular linters.
@@ -193,12 +195,11 @@ completion manually with `<C-x><C-o>`.
 set omnifunc=ale#completion#OmniFunc
 ```
 
-When working with TypeScript files, ALE supports automatic imports from
-external modules. This behavior is disabled by default and can be enabled by
-setting:
+ALE supports automatic imports from external modules. This behavior is disabled
+by default and can be enabled by setting:
 
 ```vim
-let g:ale_completion_tsserver_autoimport = 1
+let g:ale_completion_autoimport = 1
 ```
 
 See `:help ale-completion` for more information.
@@ -231,6 +232,9 @@ ALE supports "hover" information for printing brief information about symbols at
 the cursor taken from Language Server Protocol linters and `tsserver` with the
 `ALEHover` command.
 
+Truncated information will be displayed when the cursor rests on a symbol by
+default, as long as there are no problems on the same line.
+
 The information can be displayed in a `balloon` tooltip in Vim or GVim by
 hovering your mouse over symbols. Mouse hovering is enabled by default in GVim,
 and needs to be configured for Vim 8.1+ in terminals.
@@ -413,9 +417,56 @@ This plugin will look for linters in the [`ale_linters`](ale_linters) directory.
 Each directory within corresponds to a particular filetype in Vim, and each file
 in each directory corresponds to the name of a particular linter.
 
+<a name="faq-get-info"></a>
+
+### 5.ii. How can I see what ALE has configured for the current file?
+
+Run the following to see what is currently configured:
+
+```vim
+:ALEInfo
+```
+
+<a name="faq-coc-nvim"></a>
+
+### 5.iii. How can I use ALE and coc.nvim together?
+
+[coc.nvim](https://github.com/neoclide/coc.nvim) is a popular Vim plugin written
+in TypeScript and dependent on the [npm](https://www.npmjs.com/) ecosystem for
+providing full IDE features to Vim. Both ALE and coc.nvim implement
+[Language Server Protocol](https://microsoft.github.io/language-server-protocol/)
+(LSP) clients for supporting diagnostics (linting with a live server), and other
+features like auto-completion, and others listed above.
+
+ALE is primarily focused on integrating with external programs through virtually
+any means, provided the plugin remains almost entirely written in Vim script.
+coc.nvim is primarily focused on bringing IDE features to Vim. If you want to
+run external programs on your files to check for errors, and also use the most
+advanced IDE features, you might want to use both plugins at the same time.
+
+The easiest way to get both plugins to work together is to configure coc.nvim to
+send diagnostics to ALE, so ALE controls how all problems are presented to you,
+and to disable all LSP features in ALE, so ALE doesn't try to provide LSP
+features already provided by coc.nvim, such as auto-completion.
+
+1. Open your coc.nvim configuration file with `:CocConfig` and add
+   `"diagnostic.displayByAle": true` to your settings.
+2. Add `let g:ale_disable_lsp = 1` to your vimrc file, before plugins are
+   loaded.
+
+You can also use `b:ale_disable_lsp` in your ftplugin files to enable or disable
+LSP features in ALE for different filetypes. After you configure coc.nvim and
+ALE this way, you can further configure how problems appear to you by using all
+of the settings mentioned in ALE's help file, including how often diagnostics
+are requested. See `:help ale-lint`.
+
+The integration between ALE and coc.nvim works using an API ALE offers for
+letting any other plugin integrate with ALE. If you are interested in writing a
+similar integration, see `:help ale-lint-other-sources`.
+
 <a name="faq-keep-signs"></a>
 
-### 5.ii. How can I keep the sign gutter open?
+### 5.iv. How can I keep the sign gutter open?
 
 You can keep the sign gutter open at all times by setting the
 `g:ale_sign_column_always` to 1
@@ -426,7 +477,7 @@ let g:ale_sign_column_always = 1
 
 <a name="faq-change-signs"></a>
 
-### 5.iii. How can I change the signs ALE uses?
+### 5.v. How can I change the signs ALE uses?
 
 Use these options to specify what text should be used for signs:
 
@@ -446,7 +497,7 @@ highlight clear ALEWarningSign
 
 <a name="faq-change-highlights"></a>
 
-### 5.iv. How can I change or disable the highlights ALE uses?
+### 5.vi. How can I change or disable the highlights ALE uses?
 
 ALE's highlights problems with highlight groups which link to `SpellBad`,
 `SpellCap`, `error`, and `todo` groups by default. The characters that are
@@ -472,7 +523,7 @@ See `:help ale-highlights` for more information.
 
 <a name="faq-statusline"></a>
 
-### 5.v. How can I show errors or warnings in my statusline?
+### 5.vii. How can I show errors or warnings in my statusline?
 
 [vim-airline](https://github.com/vim-airline/vim-airline) integrates with ALE
 for displaying error information in the status bar. If you want to see the
@@ -521,7 +572,7 @@ for more information.
 
 <a name="faq-lightline"></a>
 
-### 5.vi. How can I show errors or warnings in my lightline?
+### 5.viii. How can I show errors or warnings in my lightline?
 
 [lightline](https://github.com/itchyny/lightline.vim) does not have built-in
 support for ALE, nevertheless there is a plugin that adds this functionality: [maximbaz/lightline-ale](https://github.com/maximbaz/lightline-ale).
@@ -530,7 +581,7 @@ For more information, check out the sources of that plugin, `:help ale#statuslin
 
 <a name="faq-echo-format"></a>
 
-### 5.vii. How can I change the format for echo messages?
+### 5.ix. How can I change the format for echo messages?
 
 There are 3 global options that allow customizing the echoed message.
 
@@ -559,7 +610,7 @@ See `:help g:ale_echo_msg_format` for more information.
 
 <a name="faq-autocmd"></a>
 
-### 5.viii. How can I execute some code when ALE starts or stops linting?
+### 5.x. How can I execute some code when ALE starts or stops linting?
 
 ALE runs its own [autocmd](http://vimdoc.sourceforge.net/htmldoc/autocmd.html)
 events when a lint or fix cycle are started and stopped. There is also an event
@@ -582,7 +633,7 @@ augroup END
 
 <a name="faq-navigation"></a>
 
-### 5.ix. How can I navigate between errors quickly?
+### 5.xi. How can I navigate between errors quickly?
 
 ALE offers some commands with `<Plug>` keybinds for moving between warnings and
 errors quickly. You can map the keys Ctrl+j and Ctrl+k to moving between errors
@@ -598,7 +649,7 @@ For more information, consult the online documentation with
 
 <a name="faq-lint-on-save"></a>
 
-### 5.x. How can I run linters only when I save files?
+### 5.xii. How can I run linters only when I save files?
 
 ALE offers an option `g:ale_lint_on_save` for enabling running the linters
 when files are saved. This option is enabled by default. If you only
@@ -619,7 +670,7 @@ files, you can set `g:ale_lint_on_save` to `0`.
 
 <a name="faq-quickfix"></a>
 
-### 5.xi. How can I use the quickfix list instead of the loclist?
+### 5.xiii. How can I use the quickfix list instead of the loclist?
 
 The quickfix list can be enabled by turning the `g:ale_set_quickfix`
 option on. If you wish to also disable the loclist, you can disable
@@ -649,7 +700,7 @@ instead of the default horizontally.
 
 <a name="faq-jsx-stylelint-eslint"></a>
 
-### 5.xii. How can I check JSX files with both stylelint and eslint?
+### 5.xiv. How can I check JSX files with both stylelint and eslint?
 
 If you configure ALE options correctly in your vimrc file, and install
 the right tools, you can check JSX files with stylelint and eslint.
@@ -691,7 +742,7 @@ no linter will be run twice for the same file.
 
 <a name="faq-vue-eslint"></a>
 
-### 5.xiii. How can I check Vue files with ESLint?
+### 5.xv. How can I check Vue files with ESLint?
 
 To check Vue files with ESLint, your ESLint project configuration file must be
 configured to use the [Vue plugin](https://github.com/vuejs/eslint-plugin-vue).
@@ -722,7 +773,7 @@ let g:ale_linters = {'vue': ['eslint', 'vls']}
 
 <a name="faq-my-battery-is-sad"></a>
 
-### 5.xiv. Will this plugin eat all of my laptop battery power?
+### 5.xvi. Will this plugin eat all of my laptop battery power?
 
 ALE takes advantage of the power of various tools to check your code. This of
 course means that CPU time will be used to continuously check your code. If you
@@ -735,7 +786,7 @@ while you type. ALE uses a timeout which is cancelled and reset every time you
 type, and this delay can be increased so linters are run less often. See
 `:help g:ale_lint_delay` for more information.
 
-If you don't wish to run linters while you type, you can disable that behaviour.
+If you don't wish to run linters while you type, you can disable that behavior.
 Set `g:ale_lint_on_text_changed` to `never`. You won't get as frequent error
 checking, but ALE shouldn't block your ability to edit a document after you save
 a file, so the asynchronous nature of the plugin will still be an advantage.
@@ -746,7 +797,7 @@ including the option `g:ale_lint_on_enter`, and you can run ALE manually with
 
 <a name="faq-c-configuration"></a>
 
-### 5.xv. How can I configure my C or C++ project?
+### 5.xvii. How can I configure my C or C++ project?
 
 The structure of C and C++ projects varies wildly from project to project, with
 many different build tools being used for building them, and many different
@@ -766,13 +817,24 @@ setting.  Consult the documentation for that setting for more information.
 `b:ale_linters` can be used to select which tools you want to run, say if you
 want to use only `gcc` for one project, and only `clang` for another.
 
+ALE will attempt to parse `compile_commands.json` files to discover compiler
+flags to use when linting code. See `:help g:ale_c_parse_compile_commands` for
+more information. See Clang's documentation for
+[compile_commands.json files](https://clang.llvm.org/docs/JSONCompilationDatabase.html).
+You should strongly consider generating them in your builds, which is easy to do
+with CMake.
+
+You can also configure ALE to automatically run `make -n` to run dry runs on
+`Makefile`s to discover compiler flags. This can execute arbitrary code, so the
+option is disabled by default. See `:help g:ale_c_parse_makefile`.
+
 You may also configure buffer-local settings for linters with project-specific
 vimrc files. [local_vimrc](https://github.com/LucHermitte/local_vimrc) can be
 used for executing local vimrc files which can be shared in your project.
 
 <a name="faq-buffer-configuration"></a>
 
-### 5.xvi. How can I configure ALE differently for different buffers?
+### 5.xviii. How can I configure ALE differently for different buffers?
 
 ALE offers various ways to configure which linters or fixers are run, and
 other settings. For the majority of ALE's settings, they can either be
@@ -808,7 +870,7 @@ Buffer-local variables for settings always override the global settings.
 
 <a name="faq-list-window-height"></a>
 
-### 5.xvii. How can I configure the height of the list in which ALE displays errors?
+### 5.xix. How can I configure the height of the list in which ALE displays errors?
 
 To set a default height for the error list, use the `g:ale_list_window_size` variable.
 
@@ -817,12 +879,13 @@ To set a default height for the error list, use the `g:ale_list_window_size` var
 let g:ale_list_window_size = 5
 ```
 
-<a name="faq-get-info"></a>
+<a name="faq-vm"></a>
 
-### 5.xviii. How can I see what ALE has configured for the current file?
+### 5.xx. How can I run linters or fixers via Docker or a VM?
 
-Run the following to see what is currently configured:
-
-```vim
-:ALEInfo
-```
+ALE supports running linters or fixers via Docker, virtual machines, or in
+combination with any remote machine with a different file system, so long as the
+tools are well-integrated with ALE, and ALE is properly configured to run the
+correct commands and map filename paths between different file systems. See
+`:help ale-lint-other-machines` for the full documentation on how to configure
+ALE to support this.

ale_linters/ada/gcc.vim

@@ -18,7 +18,7 @@ function! ale_linters#ada#gcc#GetCommand(buffer) abort
     " -gnatc: Check syntax and semantics only (no code generation attempted)
     return '%e -x ada -c -gnatc'
     \   . ' -o ' . ale#Escape(l:out_file)
-    \   . ' -I ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h'))
+    \   . ' -I %s:h'
     \   . ale#Pad(ale#Var(a:buffer, 'ada_gcc_options'))
     \   . ' %t'
 endfunction

ale_linters/asciidoc/languagetool.vim

@@ -0,0 +1,5 @@
+" Author: Horacio Sanson (hsanson [ät] gmail.com)
+" Description: languagetool for asciidoc files, copied from markdown.
+
+
+call ale#handlers#languagetool#DefineLinter('asciidoc')

ale_linters/asm/gcc.vim

@@ -9,7 +9,7 @@ function! ale_linters#asm#gcc#GetCommand(buffer) abort
     " -fsyntax-only doesn't catch everything.
     return '%e -x assembler'
     \   . ' -o ' . g:ale#util#nul_file
-    \   . '-iquote ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h'))
+    \   . '-iquote %s:h'
     \   . ' ' . ale#Var(a:buffer, 'asm_gcc_options') . ' -'
 endfunction
 

ale_linters/c/cc.vim

@@ -0,0 +1,53 @@
+" Author: w0rp <devw0rp@gmail.com>
+" Description: A C compiler linter for C files with gcc/clang, etc.
+
+call ale#Set('c_cc_executable', '<auto>')
+call ale#Set('c_cc_options', '-std=c11 -Wall')
+
+function! ale_linters#c#cc#GetExecutable(buffer) abort
+    let l:executable = ale#Var(a:buffer, 'c_cc_executable')
+
+    " Default to either clang or gcc.
+    if l:executable is# '<auto>'
+        if ale#engine#IsExecutable(a:buffer, 'clang')
+            let l:executable = 'clang'
+        else
+            let l:executable = 'gcc'
+        endif
+    endif
+
+    return l:executable
+endfunction
+
+function! ale_linters#c#cc#GetCommand(buffer, output) abort
+    let l:cflags = ale#c#GetCFlags(a:buffer, a:output)
+    let l:ale_flags = ale#Var(a:buffer, 'c_cc_options')
+
+    if l:cflags =~# '-std='
+        let l:ale_flags = substitute(
+        \   l:ale_flags,
+        \   '-std=\(c\|gnu\)[0-9]\{2\}',
+        \   '',
+        \   'g')
+    endif
+
+    " -iquote with the directory the file is in makes #include work for
+    "  headers in the same directory.
+    "
+    " `-o /dev/null` or `-o null` is needed to catch all errors,
+    " -fsyntax-only doesn't catch everything.
+    return '%e -S -x c'
+    \   . ' -o ' . g:ale#util#nul_file
+    \   . ' -iquote %s:h'
+    \   . ale#Pad(l:cflags)
+    \   . ale#Pad(l:ale_flags) . ' -'
+endfunction
+
+call ale#linter#Define('c', {
+\   'name': 'cc',
+\   'aliases': ['gcc', 'clang'],
+\   'output_stream': 'stderr',
+\   'executable': function('ale_linters#c#cc#GetExecutable'),
+\   'command': {b -> ale#c#RunMakeCommand(b, function('ale_linters#c#cc#GetCommand'))},
+\   'callback': 'ale#handlers#gcc#HandleGCCFormatWithIncludes',
+\})

ale_linters/c/ccls.vim

@@ -3,6 +3,7 @@
 
 call ale#Set('c_ccls_executable', 'ccls')
 call ale#Set('c_ccls_init_options', {})
+call ale#Set('c_build_dir', '')
 
 call ale#linter#Define('c', {
 \   'name': 'ccls',
@@ -10,5 +11,5 @@ call ale#linter#Define('c', {
 \   'executable': {b -> ale#Var(b, 'c_ccls_executable')},
 \   'command': '%e',
 \   'project_root': function('ale#handlers#ccls#GetProjectRoot'),
-\   'initialization_options': {b -> ale#Var(b, 'c_ccls_init_options')},
+\   'initialization_options': {b -> ale#handlers#ccls#GetInitOpts(b, 'c_ccls_init_options')},
 \})

ale_linters/c/clang.vim

@@ -1,24 +0,0 @@
-" Author: Masahiro H https://github.com/mshr-h
-" Description: clang linter for c files
-
-call ale#Set('c_clang_executable', 'clang')
-call ale#Set('c_clang_options', '-std=c11 -Wall')
-
-function! ale_linters#c#clang#GetCommand(buffer, output) abort
-    let l:cflags = ale#c#GetCFlags(a:buffer, a:output)
-
-    " -iquote with the directory the file is in makes #include work for
-    "  headers in the same directory.
-    return '%e -S -x c -fsyntax-only'
-    \   . ' -iquote ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h'))
-    \   . ale#Pad(l:cflags)
-    \   . ale#Pad(ale#Var(a:buffer, 'c_clang_options')) . ' -'
-endfunction
-
-call ale#linter#Define('c', {
-\   'name': 'clang',
-\   'output_stream': 'stderr',
-\   'executable': {b -> ale#Var(b, 'c_clang_executable')},
-\   'command': {b -> ale#c#RunMakeCommand(b, function('ale_linters#c#clang#GetCommand'))},
-\   'callback': 'ale#handlers#gcc#HandleGCCFormatWithIncludes',
-\})

ale_linters/c/cppcheck.vim

@@ -10,9 +10,11 @@ function! ale_linters#c#cppcheck#GetCommand(buffer) abort
     let l:buffer_path_include = empty(l:compile_commands_option)
     \   ? ale#handlers#cppcheck#GetBufferPathIncludeOptions(a:buffer)
     \   : ''
+    let l:template = ' --template=''{file}:{line}:{column}: {severity}:{inconclusive:inconclusive:} {message} [{id}]\\n{code}'''
 
     return l:cd_command
     \   . '%e -q --language=c'
+    \   . l:template
     \   . ale#Pad(l:compile_commands_option)
     \   . ale#Pad(ale#Var(a:buffer, 'c_cppcheck_options'))
     \   . l:buffer_path_include

ale_linters/c/gcc.vim

@@ -1,28 +0,0 @@
-" Author: w0rp <devw0rp@gmail.com>
-" Description: gcc linter for c files
-
-call ale#Set('c_gcc_executable', 'gcc')
-call ale#Set('c_gcc_options', '-std=c11 -Wall')
-
-function! ale_linters#c#gcc#GetCommand(buffer, output) abort
-    let l:cflags = ale#c#GetCFlags(a:buffer, a:output)
-
-    " -iquote with the directory the file is in makes #include work for
-    "  headers in the same directory.
-    "
-    " `-o /dev/null` or `-o null` is needed to catch all errors,
-    " -fsyntax-only doesn't catch everything.
-    return '%e -S -x c'
-    \   . ' -o ' . g:ale#util#nul_file
-    \   . ' -iquote ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h'))
-    \   . ale#Pad(l:cflags)
-    \   . ale#Pad(ale#Var(a:buffer, 'c_gcc_options')) . ' -'
-endfunction
-
-call ale#linter#Define('c', {
-\   'name': 'gcc',
-\   'output_stream': 'stderr',
-\   'executable': {b -> ale#Var(b, 'c_gcc_executable')},
-\   'command': {b -> ale#c#RunMakeCommand(b, function('ale_linters#c#gcc#GetCommand'))},
-\   'callback': 'ale#handlers#gcc#HandleGCCFormatWithIncludes',
-\})

ale_linters/cpp/cc.vim

@@ -0,0 +1,53 @@
+" Author: w0rp <devw0rp@gmail.com>
+" Description: A C++ compiler linter for C++ files with gcc/clang, etc.
+
+call ale#Set('cpp_cc_executable', '<auto>')
+call ale#Set('cpp_cc_options', '-std=c++14 -Wall')
+
+function! ale_linters#cpp#cc#GetExecutable(buffer) abort
+    let l:executable = ale#Var(a:buffer, 'cpp_cc_executable')
+
+    " Default to either clang++ or gcc.
+    if l:executable is# '<auto>'
+        if ale#engine#IsExecutable(a:buffer, 'clang++')
+            let l:executable = 'clang++'
+        else
+            let l:executable = 'gcc'
+        endif
+    endif
+
+    return l:executable
+endfunction
+
+function! ale_linters#cpp#cc#GetCommand(buffer, output) abort
+    let l:cflags = ale#c#GetCFlags(a:buffer, a:output)
+    let l:ale_flags = ale#Var(a:buffer, 'cpp_cc_options')
+
+    if l:cflags =~# '-std='
+        let l:ale_flags = substitute(
+        \   l:ale_flags,
+        \   '-std=\(c\|gnu\)++[0-9]\{2\}',
+        \   '',
+        \   'g')
+    endif
+
+    " -iquote with the directory the file is in makes #include work for
+    "  headers in the same directory.
+    "
+    " `-o /dev/null` or `-o null` is needed to catch all errors,
+    " -fsyntax-only doesn't catch everything.
+    return '%e -S -x c++'
+    \   . ' -o ' . g:ale#util#nul_file
+    \   . ' -iquote %s:h'
+    \   . ale#Pad(l:cflags)
+    \   . ale#Pad(l:ale_flags) . ' -'
+endfunction
+
+call ale#linter#Define('cpp', {
+\   'name': 'cc',
+\   'aliases': ['gcc', 'clang', 'g++', 'clang++'],
+\   'output_stream': 'stderr',
+\   'executable': function('ale_linters#cpp#cc#GetExecutable'),
+\   'command': {b -> ale#c#RunMakeCommand(b, function('ale_linters#cpp#cc#GetCommand'))},
+\   'callback': 'ale#handlers#gcc#HandleGCCFormatWithIncludes',
+\})

ale_linters/cpp/ccls.vim

@@ -3,6 +3,7 @@
 
 call ale#Set('cpp_ccls_executable', 'ccls')
 call ale#Set('cpp_ccls_init_options', {})
+call ale#Set('c_build_dir', '')
 
 call ale#linter#Define('cpp', {
 \   'name': 'ccls',
@@ -10,5 +11,5 @@ call ale#linter#Define('cpp', {
 \   'executable': {b -> ale#Var(b, 'cpp_ccls_executable')},
 \   'command': '%e',
 \   'project_root': function('ale#handlers#ccls#GetProjectRoot'),
-\   'initialization_options': {b -> ale#Var(b, 'cpp_ccls_init_options')},
+\   'initialization_options': {b -> ale#handlers#ccls#GetInitOpts(b, 'cpp_ccls_init_options')},
 \})

ale_linters/cpp/clang.vim

@@ -1,24 +0,0 @@
-" Author: Tomota Nakamura <https://github.com/tomotanakamura>
-" Description: clang linter for cpp files
-
-call ale#Set('cpp_clang_executable', 'clang++')
-call ale#Set('cpp_clang_options', '-std=c++14 -Wall')
-
-function! ale_linters#cpp#clang#GetCommand(buffer, output) abort
-    let l:cflags = ale#c#GetCFlags(a:buffer, a:output)
-
-    " -iquote with the directory the file is in makes #include work for
-    "  headers in the same directory.
-    return '%e -S -x c++ -fsyntax-only'
-    \   . ' -iquote ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h'))
-    \   . ale#Pad(l:cflags)
-    \   . ale#Pad(ale#Var(a:buffer, 'cpp_clang_options')) . ' -'
-endfunction
-
-call ale#linter#Define('cpp', {
-\   'name': 'clang',
-\   'output_stream': 'stderr',
-\   'executable': {b -> ale#Var(b, 'cpp_clang_executable')},
-\   'command': {b -> ale#c#RunMakeCommand(b, function('ale_linters#cpp#clang#GetCommand'))},
-\   'callback': 'ale#handlers#gcc#HandleGCCFormatWithIncludes',
-\})

ale_linters/cpp/clangtidy.vim

@@ -25,6 +25,11 @@ function! ale_linters#cpp#clangtidy#GetCommand(buffer, output) abort
         let l:options .= !empty(l:options) ? ale#Pad(l:cflags) : l:cflags
     endif
 
+    " Tell clang-tidy a .h header with a C++ filetype in Vim is a C++ file.
+    if expand('#' . a:buffer) =~# '\.h$'
+        let l:options .= !empty(l:options) ? ' -x c++' : '-x c++'
+    endif
+
     " Get the options to pass directly to clang-tidy
     let l:extra_options = ale#Var(a:buffer, 'cpp_clangtidy_extra_options')
 

ale_linters/cpp/cppcheck.vim

@@ -10,9 +10,11 @@ function! ale_linters#cpp#cppcheck#GetCommand(buffer) abort
     let l:buffer_path_include = empty(l:compile_commands_option)
     \   ? ale#handlers#cppcheck#GetBufferPathIncludeOptions(a:buffer)
     \   : ''
+    let l:template = ' --template=''{file}:{line}:{column}: {severity}:{inconclusive:inconclusive:} {message} [{id}]\\n{code}'''
 
     return l:cd_command
     \   . '%e -q --language=c++'
+    \   . l:template
     \   . ale#Pad(l:compile_commands_option)
     \   . ale#Pad(ale#Var(a:buffer, 'cpp_cppcheck_options'))
     \   . l:buffer_path_include

ale_linters/cpp/gcc.vim

@@ -1,29 +0,0 @@
-" Author: geam <mdelage@student.42.fr>
-" Description: gcc linter for cpp files
-"
-call ale#Set('cpp_gcc_executable', 'gcc')
-call ale#Set('cpp_gcc_options', '-std=c++14 -Wall')
-
-function! ale_linters#cpp#gcc#GetCommand(buffer, output) abort
-    let l:cflags = ale#c#GetCFlags(a:buffer, a:output)
-
-    " -iquote with the directory the file is in makes #include work for
-    "  headers in the same directory.
-    "
-    " `-o /dev/null` or `-o null` is needed to catch all errors,
-    " -fsyntax-only doesn't catch everything.
-    return '%e -S -x c++'
-    \   . ' -o ' . g:ale#util#nul_file
-    \   . ' -iquote ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h'))
-    \   . ale#Pad(l:cflags)
-    \   . ale#Pad(ale#Var(a:buffer, 'cpp_gcc_options')) . ' -'
-endfunction
-
-call ale#linter#Define('cpp', {
-\   'name': 'gcc',
-\   'aliases': ['g++'],
-\   'output_stream': 'stderr',
-\   'executable': {b -> ale#Var(b, 'cpp_gcc_executable')},
-\   'command': {b -> ale#c#RunMakeCommand(b, function('ale_linters#cpp#gcc#GetCommand'))},
-\   'callback': 'ale#handlers#gcc#HandleGCCFormatWithIncludes',
-\})

ale_linters/cuda/nvcc.vim

@@ -5,9 +5,6 @@ call ale#Set('cuda_nvcc_executable', 'nvcc')
 call ale#Set('cuda_nvcc_options', '-std=c++11')
 
 function! ale_linters#cuda#nvcc#GetCommand(buffer) abort
-    " Unused: use ale#util#nul_file
-    " let l:output_file = ale#util#Tempname() . '.ii'
-    " call ale#command#ManageFile(a:buffer, l:output_file)
     return '%e -cuda'
     \   . ale#Pad(ale#c#IncludeOptions(ale#c#FindLocalHeaderPaths(a:buffer)))
     \   . ale#Pad(ale#Var(a:buffer, 'cuda_nvcc_options'))

ale_linters/dockerfile/dockerfile_lint.vim

@@ -32,14 +32,29 @@ function! ale_linters#dockerfile#dockerfile_lint#Handle(buffer, lines) abort
             let l:line = get(l:object, 'line', -1)
             let l:message = l:object['message']
 
-            if get(l:object, 'description', 'None') isnot# 'None'
-                let l:message = l:message . '. ' . l:object['description']
+            let l:link = get(l:object, 'reference_url', '')
+
+            if type(l:link) == v:t_list
+                " Somehow, reference_url is returned as two-part list.
+                " Anchor markers in that list are sometimes duplicated.
+                " See https://github.com/projectatomic/dockerfile_lint/issues/134
+                let l:link = join(l:link, '')
+                let l:link = substitute(l:link, '##', '#', '')
             endif
 
+            let l:detail = l:message
+
+            if get(l:object, 'description', 'None') isnot# 'None'
+                let l:detail .= "\n\n" . l:object['description']
+            endif
+
+            let l:detail .= "\n\n" . l:link
+
             call add(l:messages, {
             \   'lnum': l:line,
             \   'text': l:message,
             \   'type': ale_linters#dockerfile#dockerfile_lint#GetType(l:type),
+            \   'detail': l:detail,
             \})
         endfor
     endfor

ale_linters/elixir/credo.vim

@@ -46,7 +46,7 @@ function! ale_linters#elixir#credo#GetMode() abort
 endfunction
 
 function! ale_linters#elixir#credo#GetCommand(buffer) abort
-    let l:project_root = ale#handlers#elixir#FindMixProjectRoot(a:buffer)
+    let l:project_root = ale#handlers#elixir#FindMixUmbrellaRoot(a:buffer)
     let l:mode = ale_linters#elixir#credo#GetMode()
 
     return ale#path#CdString(l:project_root)

ale_linters/eruby/ruumba.vim

@@ -11,7 +11,7 @@ function! ale_linters#eruby#ruumba#GetCommand(buffer) abort
     return ale#ruby#EscapeExecutable(l:executable, 'ruumba')
     \   . ' --format json --force-exclusion '
     \   . ale#Var(a:buffer, 'eruby_ruumba_options')
-    \   . ' --stdin ' . ale#Escape(expand('#' . a:buffer . ':p'))
+    \   . ' --stdin %s'
 endfunction
 
 function! ale_linters#eruby#ruumba#Handle(buffer, lines) abort

ale_linters/go/gofmt.vim

@@ -6,7 +6,6 @@ function! ale_linters#go#gofmt#GetCommand(buffer) abort
     \   . '%e -e %t'
 endfunction
 
-
 call ale#linter#Define('go', {
 \   'name': 'gofmt',
 \   'output_stream': 'stderr',

ale_linters/handlebars/embertemplatelint.vim

@@ -4,6 +4,28 @@
 call ale#Set('handlebars_embertemplatelint_executable', 'ember-template-lint')
 call ale#Set('handlebars_embertemplatelint_use_global', get(g:, 'ale_use_global_executables', 0))
 
+function! ale_linters#handlebars#embertemplatelint#GetExecutable(buffer) abort
+    return ale#node#FindExecutable(a:buffer, 'handlebars_embertemplatelint', [
+    \   'node_modules/.bin/ember-template-lint',
+    \])
+endfunction
+
+function! ale_linters#handlebars#embertemplatelint#GetCommand(buffer, version) abort
+    " Reading from stdin was introduced in ember-template-lint@1.6.0
+    return ale#semver#GTE(a:version, [1, 6, 0])
+    \   ? '%e --json --filename %s'
+    \   : '%e --json %t'
+endfunction
+
+function! ale_linters#handlebars#embertemplatelint#GetCommandWithVersionCheck(buffer) abort
+    return ale#semver#RunWithVersionCheck(
+    \   a:buffer,
+    \   ale_linters#handlebars#embertemplatelint#GetExecutable(a:buffer),
+    \   '%e --version',
+    \   function('ale_linters#handlebars#embertemplatelint#GetCommand'),
+    \)
+endfunction
+
 function! ale_linters#handlebars#embertemplatelint#Handle(buffer, lines) abort
     let l:output = []
     let l:json = ale#util#FuzzyJSONDecode(a:lines, {})
@@ -30,10 +52,9 @@ function! ale_linters#handlebars#embertemplatelint#Handle(buffer, lines) abort
 endfunction
 
 call ale#linter#Define('handlebars', {
-\   'name': 'ember-template-lint',
-\   'executable': {b -> ale#node#FindExecutable(b, 'handlebars_embertemplatelint', [
-\       'node_modules/.bin/ember-template-lint',
-\   ])},
-\   'command': '%e --json %t',
+\   'name': 'embertemplatelint',
+\   'aliases': ['ember-template-lint'],
+\   'executable': function('ale_linters#handlebars#embertemplatelint#GetExecutable'),
+\   'command': function('ale_linters#handlebars#embertemplatelint#GetCommandWithVersionCheck'),
 \   'callback': 'ale_linters#handlebars#embertemplatelint#Handle',
 \})

ale_linters/java/checkstyle.vim

@@ -52,7 +52,7 @@ endfunction
 function! ale_linters#java#checkstyle#GetCommand(buffer) abort
     let l:options = ale#Var(a:buffer, 'java_checkstyle_options')
     let l:config_option = ale#Var(a:buffer, 'java_checkstyle_config')
-    let l:config = l:options !~# '\v(^| )-c' && !empty(l:config_option)
+    let l:config = l:options !~# '\v(^| )-c ' && !empty(l:config_option)
     \   ? s:GetConfig(a:buffer, l:config_option)
     \   : ''
 

ale_linters/java/eclipselsp.vim

@@ -20,25 +20,39 @@ endfunction
 function! ale_linters#java#eclipselsp#JarPath(buffer) abort
     let l:path = ale_linters#java#eclipselsp#TargetPath(a:buffer)
 
-    " Search jar file within repository path when manually built using mvn
-    let l:repo_path = l:path . '/org.eclipse.jdt.ls.product/target/repository'
-    let l:files = globpath(l:repo_path, '**/plugins/org.eclipse.equinox.launcher_\d\.\d\.\d\d\d\.*\.jar', 1, 1)
+    if has('win32')
+        let l:platform = 'win32'
+    elseif has('macunix')
+        let l:platform = 'macosx'
+    else
+        let l:platform = 'linux'
+    endif
 
-    if len(l:files) == 1
+    " Search jar file within repository path when manually built using mvn
+    let l:files = globpath(l:path, '**/'.l:platform.'/**/plugins/org.eclipse.equinox.launcher_\d\.\d\.\d\d\d\.*\.jar', 1, 1)
+
+    if len(l:files) >= 1
         return l:files[0]
     endif
 
     " Search jar file within VSCode extensions folder.
-    let l:files = globpath(l:path, '**/plugins/org.eclipse.equinox.launcher_\d\.\d\.\d\d\d\.*\.jar', 1, 1)
+    let l:files = globpath(l:path, '**/'.l:platform.'/plugins/org.eclipse.equinox.launcher_\d\.\d\.\d\d\d\.*\.jar', 1, 1)
 
-    if len(l:files) == 1
+    if len(l:files) >= 1
+        return l:files[0]
+    endif
+
+    " Search jar file within unzipped tar.gz file
+    let l:files = globpath(l:path, 'plugins/org.eclipse.equinox.launcher_\d\.\d\.\d\d\d\.*\.jar', 1, 1)
+
+    if len(l:files) >= 1
         return l:files[0]
     endif
 
     " Search jar file within system package path
     let l:files = globpath('/usr/share/java/jdtls/plugins', 'org.eclipse.equinox.launcher_\d\.\d\.\d\d\d\.*\.jar', 1, 1)
 
-    if len(l:files) == 1
+    if len(l:files) >= 1
         return l:files[0]
     endif
 
@@ -166,7 +180,8 @@ function! ale_linters#java#eclipselsp#RunWithVersionCheck(buffer) abort
     return ale#command#Run(
     \ a:buffer,
     \ l:command,
-    \ function('ale_linters#java#eclipselsp#CommandWithVersion')
+    \ function('ale_linters#java#eclipselsp#CommandWithVersion'),
+    \ { 'output_stream': 'both' }
     \)
 endfunction
 

ale_linters/kotlin/ktlint.vim

@@ -6,5 +6,5 @@ call ale#linter#Define('kotlin', {
 \   'executable': 'ktlint',
 \   'command': function('ale#handlers#ktlint#GetCommand'),
 \   'callback': 'ale#handlers#ktlint#Handle',
-\   'lint_file': 1
+\   'output_stream': 'stderr'
 \})

ale_linters/markdown/markdownlint.vim

@@ -1,11 +1,22 @@
 " Author: Ty-Lucas Kelley <tylucaskelley@gmail.com>
 " Description: Adds support for markdownlint
 
+call ale#Set('markdown_markdownlint_options', '')
+
+function! ale_linters#markdown#markdownlint#GetCommand(buffer) abort
+    let l:executable = 'markdownlint'
+
+    let l:options = ale#Var(a:buffer, 'markdown_markdownlint_options')
+
+    return ale#Escape(l:executable)
+    \ . (!empty(l:options) ? ' ' . l:options : '') . ' %s'
+endfunction
+
 call ale#linter#Define('markdown', {
 \   'name': 'markdownlint',
 \   'executable': 'markdownlint',
 \   'lint_file': 1,
 \   'output_stream': 'both',
-\   'command': 'markdownlint %s',
+\   'command': function('ale_linters#markdown#markdownlint#GetCommand'),
 \   'callback': 'ale#handlers#markdownlint#Handle'
 \})

ale_linters/nasm/nasm.vim

@@ -7,10 +7,9 @@ call ale#Set('nasm_nasm_options', '')
 function! ale_linters#nasm#nasm#GetCommand(buffer) abort
     " Note that NASM requires a trailing slash for the -I option.
     let l:separator = has('win32') ? '\' : '/'
-    let l:path = fnamemodify(bufname(a:buffer), ':p:h') . l:separator
     let l:output_null = has('win32') ? 'NUL' : '/dev/null'
 
-    return '%e -X gnu -I ' . ale#Escape(l:path)
+    return '%e -X gnu -I %s:h' . l:separator
     \   . ale#Pad(ale#Var(a:buffer, 'nasm_nasm_options'))
     \   . ' %s'
     \   . ' -o ' . l:output_null

ale_linters/objc/ccls.vim

@@ -3,6 +3,7 @@
 
 call ale#Set('objc_ccls_executable', 'ccls')
 call ale#Set('objc_ccls_init_options', {})
+call ale#Set('c_build_dir', '')
 
 call ale#linter#Define('objc', {
 \   'name': 'ccls',
@@ -10,5 +11,5 @@ call ale#linter#Define('objc', {
 \   'executable': {b -> ale#Var(b, 'objc_ccls_executable')},
 \   'command': '%e',
 \   'project_root': function('ale#handlers#ccls#GetProjectRoot'),
-\   'initialization_options': {b -> ale#Var(b, 'objc_ccls_init_options')},
+\   'initialization_options': {b -> ale#handlers#ccls#GetInitOpts(b, 'objc_ccls_init_options')},
 \})

ale_linters/objc/clang.vim

@@ -10,7 +10,7 @@ function! ale_linters#objc#clang#GetCommand(buffer) abort
     " -iquote with the directory the file is in makes #include work for
     "  headers in the same directory.
     return 'clang -S -x objective-c -fsyntax-only '
-    \   . '-iquote ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h'))
+    \   . '-iquote %s:h'
     \   . ' ' . ale#Var(a:buffer, 'objc_clang_options') . ' -'
 endfunction
 

ale_linters/objcpp/clang.vim

@@ -10,7 +10,7 @@ function! ale_linters#objcpp#clang#GetCommand(buffer) abort
     " -iquote with the directory the file is in makes #include work for
     "  headers in the same directory.
     return 'clang++ -S -x objective-c++ -fsyntax-only '
-    \   . '-iquote ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h'))
+    \   . '-iquote %s:h'
     \   . ' ' . ale#Var(a:buffer, 'objcpp_clang_options') . ' -'
 endfunction
 

ale_linters/ocaml/ols.vim

@@ -9,6 +9,6 @@ call ale#linter#Define('ocaml', {
 \   'lsp': 'stdio',
 \   'executable': function('ale#handlers#ols#GetExecutable'),
 \   'command': function('ale#handlers#ols#GetCommand'),
-\   'language_callback': 'ale#handlers#ols#GetLanguage',
+\   'language': function('ale#handlers#ols#GetLanguage'),
 \   'project_root': function('ale#handlers#ols#GetProjectRoot'),
 \})

ale_linters/php/psalm.vim

@@ -1,9 +1,9 @@
 " Author: Matt Brown <https://github.com/muglug>
 " Description: plugin for Psalm, static analyzer for PHP
 
-call ale#Set('psalm_langserver_executable', 'psalm')
-call ale#Set('psalm_langserver_options', '')
-call ale#Set('psalm_langserver_use_global', get(g:, 'ale_use_global_executables', 0))
+call ale#Set('php_psalm_executable', 'psalm')
+call ale#Set('php_psalm_options', '')
+call ale#Set('php_psalm_use_global', get(g:, 'ale_use_global_executables', 0))
 
 function! ale_linters#php#psalm#GetProjectRoot(buffer) abort
     let l:git_path = ale#path#FindNearestDirectory(a:buffer, '.git')
@@ -12,13 +12,13 @@ function! ale_linters#php#psalm#GetProjectRoot(buffer) abort
 endfunction
 
 function! ale_linters#php#psalm#GetCommand(buffer) abort
-    return '%e --language-server' . ale#Pad(ale#Var(a:buffer, 'psalm_langserver_options'))
+    return '%e --language-server' . ale#Pad(ale#Var(a:buffer, 'php_psalm_options'))
 endfunction
 
 call ale#linter#Define('php', {
 \   'name': 'psalm',
 \   'lsp': 'stdio',
-\   'executable': {b -> ale#node#FindExecutable(b, 'psalm_langserver', [
+\   'executable': {b -> ale#node#FindExecutable(b, 'php_psalm', [
 \       'vendor/bin/psalm',
 \   ])},
 \   'command': function('ale_linters#php#psalm#GetCommand'),

ale_linters/puppet/puppet.vim

@@ -8,13 +8,15 @@ function! ale_linters#puppet#puppet#Handle(buffer, lines) abort
     " Error: Could not parse for environment production: Syntax error at ':' at /root/puppetcode/modules/nginx/manifests/init.pp:43:12
     " Error: Could not parse for environment production: Syntax error at '='; expected '}' at /root/puppetcode/modules/pancakes/manifests/init.pp:5"
     " Error: Could not parse for environment production: Syntax error at 'parameter1' (file: /tmp/modules/mariadb/manifests/slave.pp, line: 4, column: 5)
-    let l:pattern = '^Error: .*: \(.\+\) \((file:\|at\) .\+\.pp\(, line: \|:\)\(\d\+\)\(, column: \|:\)\=\(\d*\)'
+    " Error: Illegal attempt to assign to 'a Name'. Not an assignable reference (file: /tmp/modules/waffles/manifests/syrup.pp, line: 5, column: 11)
+    " Error: Could not parse for environment production: Syntax error at end of input (file: /tmp/modules/bob/manifests/init.pp)
+    let l:pattern = '^Error:\%(.*:\)\? \(.\+\) \((file:\|at\) .\+\.pp\(\(, line: \|:\)\(\d\+\)\(, column: \|:\)\=\(\d*\)\|)$\)'
     let l:output = []
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
         call add(l:output, {
-        \   'lnum': l:match[4] + 0,
-        \   'col': l:match[6] + 0,
+        \   'lnum': l:match[5] + 0,
+        \   'col': l:match[7] + 0,
         \   'text': l:match[1],
         \})
     endfor

ale_linters/pyrex/cython.vim

@@ -6,9 +6,7 @@ call ale#Set('pyrex_cython_executable', 'cython')
 call ale#Set('pyrex_cython_options', '--warning-extra')
 
 function! ale_linters#pyrex#cython#GetCommand(buffer) abort
-    let l:local_dir = ale#Escape(fnamemodify(bufname(a:buffer), ':p:h'))
-
-    return '%e --working ' . l:local_dir . ' --include-dir ' . l:local_dir
+    return '%e --working %s:h --include-dir %s:h'
     \   . ale#Pad(ale#Var(a:buffer, 'pyrex_cython_options'))
     \   . ' --output-file ' . g:ale#util#nul_file . ' %t'
 endfunction

ale_linters/python/flake8.vim

@@ -4,7 +4,7 @@
 call ale#Set('python_flake8_executable', 'flake8')
 call ale#Set('python_flake8_options', '')
 call ale#Set('python_flake8_use_global', get(g:, 'ale_use_global_executables', 0))
-call ale#Set('python_flake8_change_directory', 1)
+call ale#Set('python_flake8_change_directory', 'project')
 call ale#Set('python_flake8_auto_pipenv', 0)
 
 function! s:UsingModule(buffer) abort
@@ -38,10 +38,30 @@ function! ale_linters#python#flake8#RunWithVersionCheck(buffer) abort
     \)
 endfunction
 
+function! ale_linters#python#flake8#GetCdString(buffer) abort
+    let l:change_directory = ale#Var(a:buffer, 'python_flake8_change_directory')
+    let l:cd_string = ''
+
+    if l:change_directory is# 'project'
+        let l:project_root = ale#python#FindProjectRootIni(a:buffer)
+
+        if !empty(l:project_root)
+            let l:cd_string = ale#path#CdString(l:project_root)
+        endif
+    endif
+
+    if (l:change_directory is# 'project' && empty(l:cd_string))
+    \|| l:change_directory is# 1
+    \|| l:change_directory is# 'file'
+        let l:cd_string = ale#path#BufferCdString(a:buffer)
+    endif
+
+    return l:cd_string
+endfunction
+
 function! ale_linters#python#flake8#GetCommand(buffer, version) abort
-    let l:cd_string = ale#Var(a:buffer, 'python_flake8_change_directory')
-    \   ? ale#path#BufferCdString(a:buffer)
-    \   : ''
+    let l:cd_string = ale_linters#python#flake8#GetCdString(a:buffer)
+
     let l:executable = ale_linters#python#flake8#GetExecutable(a:buffer)
 
     let l:exec_args = l:executable =~? 'pipenv$'

ale_linters/python/pydocstyle.vim

@@ -16,17 +16,15 @@ function! ale_linters#python#pydocstyle#GetExecutable(buffer) abort
 endfunction
 
 function! ale_linters#python#pydocstyle#GetCommand(buffer) abort
-    let l:dir = fnamemodify(bufname(a:buffer), ':p:h')
     let l:executable = ale_linters#python#pydocstyle#GetExecutable(a:buffer)
-
     let l:exec_args = l:executable =~? 'pipenv$'
     \   ? ' run pydocstyle'
     \   : ''
 
-    return ale#path#CdString(l:dir)
+    return ale#path#BufferCdString(a:buffer)
     \   . ale#Escape(l:executable) . l:exec_args
-    \   . ' ' . ale#Var(a:buffer, 'python_pydocstyle_options')
-    \   . ' ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:t'))
+    \   . ale#Pad(ale#Var(a:buffer, 'python_pydocstyle_options'))
+    \   . ' %s:t'
 endfunction
 
 function! ale_linters#python#pydocstyle#Handle(buffer, lines) abort

ale_linters/python/pylint.vim

@@ -17,7 +17,7 @@ function! ale_linters#python#pylint#GetExecutable(buffer) abort
     return ale#python#FindExecutable(a:buffer, 'python_pylint', ['pylint'])
 endfunction
 
-function! ale_linters#python#pylint#GetCommand(buffer) abort
+function! ale_linters#python#pylint#GetCommand(buffer, version) abort
     let l:cd_string = ''
 
     if ale#Var(a:buffer, 'python_pylint_change_directory')
@@ -38,17 +38,23 @@ function! ale_linters#python#pylint#GetCommand(buffer) abort
 
     return l:cd_string
     \   . ale#Escape(l:executable) . l:exec_args
-    \   . ' ' . ale#Var(a:buffer, 'python_pylint_options')
+    \   . ale#Pad(ale#Var(a:buffer, 'python_pylint_options'))
     \   . ' --output-format text --msg-template="{path}:{line}:{column}: {msg_id} ({symbol}) {msg}" --reports n'
+    \   .  (ale#semver#GTE(a:version, [2, 4, 0]) ? ' --from-stdin' : '')
     \   . ' %s'
 endfunction
 
 function! ale_linters#python#pylint#Handle(buffer, lines) abort
+    let l:output = ale#python#HandleTraceback(a:lines, 10)
+
+    if !empty(l:output)
+        return l:output
+    endif
+
     " Matches patterns like the following:
     "
     " test.py:4:4: W0101 (unreachable) Unreachable code
     let l:pattern = '\v^[a-zA-Z]?:?[^:]+:(\d+):(\d+): ([[:alnum:]]+) \(([^(]*)\) (.*)$'
-    let l:output = []
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
         "let l:failed = append(0, l:match)
@@ -71,13 +77,19 @@ function! ale_linters#python#pylint#Handle(buffer, lines) abort
             let l:code_out = l:match[4]
         endif
 
-        call add(l:output, {
+        let l:item = {
         \   'lnum': l:match[1] + 0,
         \   'col': l:match[2] + 1,
         \   'text': l:match[5],
         \   'code': l:code_out,
-        \   'type': l:code[:0] is# 'E' ? 'E' : 'W',
-        \})
+        \   'type': 'W',
+        \}
+
+        if l:code[:0] is# 'E'
+            let l:item.type = 'E'
+        endif
+
+        call add(l:output, l:item)
     endfor
 
     return l:output
@@ -86,7 +98,17 @@ endfunction
 call ale#linter#Define('python', {
 \   'name': 'pylint',
 \   'executable': function('ale_linters#python#pylint#GetExecutable'),
-\   'command': function('ale_linters#python#pylint#GetCommand'),
+\   'lint_file': {buffer -> ale#semver#RunWithVersionCheck(
+\       buffer,
+\       ale#Var(buffer, 'python_pylint_executable'),
+\       '%e --version',
+\       {buffer, version -> !ale#semver#GTE(version, [2, 4, 0])},
+\   )},
+\   'command': {buffer -> ale#semver#RunWithVersionCheck(
+\       buffer,
+\       ale#Var(buffer, 'python_pylint_executable'),
+\       '%e --version',
+\       function('ale_linters#python#pylint#GetCommand'),
+\   )},
 \   'callback': 'ale_linters#python#pylint#Handle',
-\   'lint_file': 1,
 \})

ale_linters/python/pyright.vim

@@ -0,0 +1,43 @@
+call ale#Set('python_pyright_executable', 'pyright-langserver')
+call ale#Set('python_pyright_config', {})
+
+function! ale_linters#python#pyright#GetConfig(buffer) abort
+    let l:config = deepcopy(ale#Var(a:buffer, 'python_pyright_config'))
+
+    if !has_key(l:config, 'python')
+        let l:config.python = {}
+    endif
+
+    if type(l:config.python) is v:t_dict
+        " Automatically detect the virtualenv path and use it.
+        if !has_key(l:config.python, 'venvPath')
+            let l:venv = ale#python#FindVirtualenv(a:buffer)
+
+            if !empty(l:venv)
+                let l:config.python.venvPath = l:venv
+            endif
+        endif
+
+        " Automatically use the version of Python in virtualenv.
+        if type(get(l:config.python, 'venvPath')) is v:t_string
+        \&& !empty(l:config.python.venvPath)
+        \&& !has_key(l:config.python, 'pythonPath')
+            let l:config.python.pythonPath = ale#path#Simplify(
+            \   l:config.python.venvPath
+            \   . (has('win32') ? '/Scripts/python' : '/bin/python')
+            \)
+        endif
+    endif
+
+    return l:config
+endfunction
+
+call ale#linter#Define('python', {
+\   'name': 'pyright',
+\   'lsp': 'stdio',
+\   'executable': {b -> ale#Var(b, 'python_pyright_executable')},
+\   'command': '%e --stdio',
+\   'project_root': function('ale#python#FindProjectRoot'),
+\   'completion_filter': 'ale#completion#python#CompletionItemFilter',
+\   'lsp_config': function('ale_linters#python#pyright#GetConfig'),
+\})

ale_linters/reason/ols.vim

@@ -9,6 +9,6 @@ call ale#linter#Define('reason', {
 \   'lsp': 'stdio',
 \   'executable': function('ale#handlers#ols#GetExecutable'),
 \   'command': function('ale#handlers#ols#GetCommand'),
-\   'language_callback': 'ale#handlers#ols#GetLanguage',
+\   'language': function('ale#handlers#ols#GetLanguage'),
 \   'project_root': function('ale#handlers#ols#GetProjectRoot'),
 \})

ale_linters/ruby/rubocop.vim

@@ -10,7 +10,7 @@ function! ale_linters#ruby#rubocop#GetCommand(buffer) abort
     return ale#ruby#EscapeExecutable(l:executable, 'rubocop')
     \   . ' --format json --force-exclusion '
     \   . ale#Var(a:buffer, 'ruby_rubocop_options')
-    \   . ' --stdin ' . ale#Escape(expand('#' . a:buffer . ':p'))
+    \   . ' --stdin %s'
 endfunction
 
 function! ale_linters#ruby#rubocop#GetType(severity) abort

ale_linters/ruby/standardrb.vim

@@ -11,7 +11,7 @@ function! ale_linters#ruby#standardrb#GetCommand(buffer) abort
     return ale#ruby#EscapeExecutable(l:executable, 'standardrb')
     \   . ' --format json --force-exclusion '
     \   . ale#Var(a:buffer, 'ruby_standardrb_options')
-    \   . ' --stdin ' . ale#Escape(expand('#' . a:buffer . ':p'))
+    \   . ' --stdin %s'
 endfunction
 
 " standardrb is based on RuboCop so the callback is the same

ale_linters/rust/cargo.vim

@@ -11,6 +11,7 @@ call ale#Set('rust_cargo_default_feature_behavior', 'default')
 call ale#Set('rust_cargo_include_features', '')
 call ale#Set('rust_cargo_use_clippy', 0)
 call ale#Set('rust_cargo_clippy_options', '')
+call ale#Set('rust_cargo_target_dir', '')
 
 function! ale_linters#rust#cargo#GetCargoExecutable(bufnr) abort
     if ale#path#FindNearestFile(a:bufnr, 'Cargo.toml') isnot# ''
@@ -31,6 +32,9 @@ function! ale_linters#rust#cargo#GetCommand(buffer, version) abort
     \   && ale#semver#GTE(a:version, [0, 22, 0])
     let l:use_tests = ale#Var(a:buffer, 'rust_cargo_check_tests')
     \   && ale#semver#GTE(a:version, [0, 22, 0])
+    let l:target_dir = ale#Var(a:buffer, 'rust_cargo_target_dir')
+    let l:use_target_dir = !empty(l:target_dir)
+    \   && ale#semver#GTE(a:version, [0, 17, 0])
 
     let l:include_features = ale#Var(a:buffer, 'rust_cargo_include_features')
 
@@ -82,6 +86,7 @@ function! ale_linters#rust#cargo#GetCommand(buffer, version) abort
     \   . (l:use_all_targets ? ' --all-targets' : '')
     \   . (l:use_examples ? ' --examples' : '')
     \   . (l:use_tests ? ' --tests' : '')
+    \   . (l:use_target_dir ? (' --target-dir ' . ale#Escape(l:target_dir)) : '')
     \   . ' --frozen --message-format=json -q'
     \   . l:default_feature
     \   . l:include_features

ale_linters/sh/bashate.vim

@@ -0,0 +1,43 @@
+" Author: hsanson <hsanson@gmail.com>
+" Description: Lints sh files using bashate
+" URL: https://github.com/openstack/bashate
+
+call ale#Set('sh_bashate_executable', 'bashate')
+call ale#Set('sh_bashate_options', '')
+
+function! ale_linters#sh#bashate#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'sh_bashate_executable')
+endfunction
+
+function! ale_linters#sh#bashate#GetCommand(buffer) abort
+    let l:options = ale#Var(a:buffer, 'sh_bashate_options')
+    let l:executable = ale_linters#sh#bashate#GetExecutable(a:buffer)
+
+    return ale#Escape(l:executable) . ' ' . l:options . ' ' . '%t'
+endfunction
+
+function! ale_linters#sh#bashate#Handle(buffer, lines) abort
+    " Matches patterns line the following:
+    "
+    " /path/to/script/file:694:1: E003 Indent not multiple of 4
+    let l:pattern = ':\(\d\+\):\(\d\+\): \(.*\)$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        call add(l:output, {
+        \   'lnum': str2nr(l:match[1]),
+        \   'col': str2nr(l:match[2]),
+        \   'text': l:match[3],
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('sh', {
+\   'name': 'bashate',
+\   'output_stream': 'stdout',
+\   'executable': function('ale_linters#sh#bashate#GetExecutable'),
+\   'command': function('ale_linters#sh#bashate#GetCommand'),
+\   'callback': 'ale_linters#sh#bashate#Handle',
+\})

ale_linters/sh/shell.vim

@@ -1,5 +1,5 @@
 " Author: w0rp <devw0rp@gmail.com>
-" Description: Lints sh files using bash -n
+" Description: Lints shell files by invoking the shell with -n
 
 " Backwards compatibility
 if exists('g:ale_linters_sh_shell_default_shell')

ale_linters/sql/sqllint.vim

@@ -0,0 +1,33 @@
+" ale_linters/sql/sqllint.vim
+" Author: Joe Reynolds <joereynolds952@gmail.co>
+" Description: sql-lint for SQL files.
+"              sql-lint can be found at
+"              https://www.npmjs.com/package/sql-lint
+"              https://github.com/joereynolds/sql-lint
+
+function! ale_linters#sql#sqllint#Handle(buffer, lines) abort
+    " Matches patterns like the following:
+    "
+    " stdin:1 [ER_NO_DB_ERROR] No database selected
+    let l:pattern = '\v^[^:]+:(\d+) (.*)'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        call add(l:output, {
+        \   'lnum': l:match[1] + 0,
+        \   'col': l:match[2] + 0,
+        \   'type': l:match[3][0],
+        \   'text': l:match[0],
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('sql', {
+\   'name': 'sqllint',
+\   'aliases': ['sql-lint'],
+\   'executable': 'sql-lint',
+\   'command': 'sql-lint',
+\   'callback': 'ale_linters#sql#sqllint#Handle',
+\})

ale_linters/swift/swiftformat.vim

@@ -0,0 +1,62 @@
+" Author: Klaas Pieter Annema <https://github.com/klaaspieter>
+" Description: Support for swift-format https://github.com/apple/swift-format
+
+let s:default_executable = 'swift-format'
+call ale#Set('swift_swiftformat_executable', s:default_executable)
+
+function! ale_linters#swift#swiftformat#UseSwift(buffer) abort
+    let l:swift_config = ale#path#FindNearestFile(a:buffer, 'Package.swift')
+    let l:executable = ale#Var(a:buffer, 'swift_swiftformat_executable')
+
+    return !empty(l:swift_config) && l:executable is# s:default_executable
+endfunction
+
+function! ale_linters#swift#swiftformat#GetExecutable(buffer) abort
+    if ale_linters#swift#swiftformat#UseSwift(a:buffer)
+        return 'swift'
+    endif
+
+    return ale#Var(a:buffer, 'swift_swiftformat_executable')
+endfunction
+
+function! ale_linters#swift#swiftformat#GetCommand(buffer) abort
+    let l:executable = ale_linters#swift#swiftformat#GetExecutable(a:buffer)
+    let l:args = '--mode lint %t'
+
+    if ale_linters#swift#swiftformat#UseSwift(a:buffer)
+        let l:args = 'run swift-format' . ' ' . l:args
+    endif
+
+    return ale#Escape(l:executable) . ' ' . l:args
+endfunction
+
+function! ale_linters#swift#swiftformat#Handle(buffer, lines) abort
+    " Matches lines of the following pattern:
+    "
+    " Sources/main.swift:4:21: warning: [DoNotUseSemicolons]: remove ';' and move the next statement to the new line
+    " Sources/main.swift:3:12: warning: [Spacing]: remove 1 space
+    let l:pattern = '\v^.*:(\d+):(\d+): (\S+) \[(\S+)\]: (.*)$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        call add(l:output, {
+        \   'lnum': l:match[1] + 0,
+        \   'col': l:match[2] + 0,
+        \   'type': l:match[3] is# 'error' ? 'E' : 'W',
+        \   'code': l:match[4],
+        \   'text': l:match[5],
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+
+call ale#linter#Define('swift', {
+\   'name': 'swift-format',
+\   'executable': function('ale_linters#swift#swiftformat#GetExecutable'),
+\   'command': function('ale_linters#swift#swiftformat#GetCommand'),
+\   'output_stream': 'stderr',
+\   'language': 'swift',
+\   'callback': 'ale_linters#swift#swiftformat#Handle'
+\})

ale_linters/verilog/hdl_checker.vim

@@ -0,0 +1,5 @@
+" Author:      suoto <andre820@gmail.com>
+" Description: Adds support for HDL Code Checker, which wraps vcom/vlog, ghdl
+"              or xvhdl. More info on https://github.com/suoto/hdl_checker
+
+call ale#handlers#hdl_checker#DefineLinter('verilog')

ale_linters/verilog/vlog.vim

@@ -13,14 +13,15 @@ function! ale_linters#verilog#vlog#Handle(buffer, lines) abort
     "Matches patterns like the following:
     "** Warning: add.v(7): (vlog-2623) Undefined variable: C.
     "** Error: file.v(1): (vlog-13294) Identifier must be declared with a port mode: C.
-    let l:pattern = '^**\s\(\w*\):[a-zA-Z0-9\-\.\_\/ ]\+(\(\d\+\)):\s\+\(.*\)'
+    let l:pattern = '^**\s\(\w*\): \([a-zA-Z0-9\-\.\_\/ ]\+\)(\(\d\+\)):\s\+\(.*\)'
     let l:output = []
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
         call add(l:output, {
-        \   'lnum': l:match[2] + 0,
+        \   'lnum': l:match[3] + 0,
         \   'type': l:match[1] is? 'Error' ? 'E' : 'W',
-        \   'text': l:match[3],
+        \   'text': l:match[4],
+        \   'filename': l:match[2],
         \})
     endfor
 
@@ -28,13 +29,14 @@ function! ale_linters#verilog#vlog#Handle(buffer, lines) abort
     "** Warning: (vlog-2623) add.v(7): Undefined variable: C.
     "** Error: (vlog-13294) file.v(1): Identifier must be declared with a port mode: C.
     " let l:pattern = '^**\s\(\w*\):[a-zA-Z0-9\-\.\_\/ ]\+(\(\d\+\)):\s\+\(.*\)'
-    let l:pattern = '^**\s\(\w*\):\s\([^)]*)\)[a-zA-Z0-9\-\.\_\/ ]\+(\(\d\+\)):\s\+\(.*\)'
+    let l:pattern = '^**\s\(\w*\):\s\([^)]*)\) \([a-zA-Z0-9\-\.\_\/ ]\+\)(\(\d\+\)):\s\+\(.*\)'
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
         call add(l:output, {
-        \   'lnum': l:match[3] + 0,
+        \   'lnum': l:match[4] + 0,
         \   'type': l:match[1] is? 'Error' ? 'E' : 'W',
-        \   'text': l:match[2] . ' ' . l:match[4],
+        \   'text': l:match[2] . ' ' . l:match[5],
+        \   'filename': l:match[3],
         \})
     endfor
 

ale_linters/vhdl/hdl_checker.vim

@@ -0,0 +1,5 @@
+" Author:      suoto <andre820@gmail.com>
+" Description: Adds support for HDL Code Checker, which wraps vcom/vlog, ghdl
+"              or xvhdl. More info on https://github.com/suoto/hdl_checker
+
+call ale#handlers#hdl_checker#DefineLinter('vhdl')

ale_linters/vim/vint.vim

@@ -5,7 +5,7 @@
 call ale#Set('vim_vint_show_style_issues', 1)
 call ale#Set('vim_vint_executable', 'vint')
 let s:enable_neovim = has('nvim') ? ' --enable-neovim' : ''
-let s:format = '-f "{file_path}:{line_number}:{column_number}: {severity}: {description} (see {reference})"'
+let s:format = '-f "{file_path}:{line_number}:{column_number}: {severity}: {policy_name} - {description} (see {reference})"'
 
 function! ale_linters#vim#vint#GetCommand(buffer, version) abort
     let l:can_use_no_color_flag = empty(a:version)
@@ -13,12 +13,17 @@ function! ale_linters#vim#vint#GetCommand(buffer, version) abort
 
     let l:warning_flag = ale#Var(a:buffer, 'vim_vint_show_style_issues') ? '-s' : '-w'
 
+    " Use the --stdin-display-name argument if supported, temp file otherwise.
+    let l:stdin_or_temp = ale#semver#GTE(a:version, [0, 4, 0])
+    \   ? ' --stdin-display-name %s -'
+    \   : ' %t'
+
     return '%e'
     \   . ' ' . l:warning_flag
     \   . (l:can_use_no_color_flag ? ' --no-color' : '')
     \   . s:enable_neovim
     \   . ' ' . s:format
-    \   . ' %t'
+    \   . l:stdin_or_temp
 endfunction
 
 let s:word_regex_list = [

ale_linters/zig/zls.vim

@@ -0,0 +1,20 @@
+" Author: CherryMan <skipper308@hotmail.ca>
+" Description: A language server for Zig
+
+call ale#Set('zig_zls_executable', 'zls')
+call ale#Set('zig_zls_config', {})
+
+function! ale_linters#zig#zls#GetProjectRoot(buffer) abort
+    let l:build_rs = ale#path#FindNearestFile(a:buffer, 'build.zig')
+
+    return !empty(l:build_rs) ? fnamemodify(l:build_rs, ':h') : ''
+endfunction
+
+call ale#linter#Define('zig', {
+\   'name': 'zls',
+\   'lsp': 'stdio',
+\   'lsp_config': {b -> ale#Var(b, 'zig_zls_config')},
+\   'executable': {b -> ale#Var(b, 'zig_zls_executable')},
+\   'command': '%e',
+\   'project_root': function('ale_linters#zig#zls#GetProjectRoot'),
+\})

autoload/ale.vim

@@ -100,13 +100,7 @@ function! s:Lint(buffer, should_lint_file, timer_id) abort
     " Use the filetype from the buffer
     let l:filetype = getbufvar(a:buffer, '&filetype')
     let l:linters = ale#linter#Get(l:filetype)
-
-    " Apply ignore lists for linters only if needed.
-    let l:ignore_config = ale#Var(a:buffer, 'linters_ignore')
-    let l:disable_lsp = ale#Var(a:buffer, 'disable_lsp')
-    let l:linters = !empty(l:ignore_config) || l:disable_lsp
-    \   ? ale#engine#ignore#Exclude(l:filetype, l:linters, l:ignore_config, l:disable_lsp)
-    \   : l:linters
+    let l:linters = ale#linter#RemoveIgnored(a:buffer, l:filetype, l:linters)
 
     " Tell other sources that they can start checking the buffer now.
     let g:ale_want_results_buffer = a:buffer
@@ -163,7 +157,7 @@ function! ale#Queue(delay, ...) abort
     endif
 endfunction
 
-let s:current_ale_version = [2, 7, 0]
+let s:current_ale_version = [3, 0, 0]
 
 " A function used to check for ALE features in files outside of the project.
 function! ale#Has(feature) abort
@@ -263,6 +257,28 @@ function! ale#GetLocItemMessage(item, format_string) abort
     let l:msg = substitute(l:msg, '\V%linter%', '\=l:linter_name', 'g')
     " Replace %s with the text.
     let l:msg = substitute(l:msg, '\V%s', '\=a:item.text', 'g')
+    " Windows may insert carriage return line endings (^M), strip these characters.
+    let l:msg = substitute(l:msg, '\r', '', 'g')
 
     return l:msg
 endfunction
+
+" Given a buffer and a linter or fixer name, return an Array of two-item
+" Arrays describing how to map filenames to and from the local to foreign file
+" systems.
+function! ale#GetFilenameMappings(buffer, name) abort
+    let l:linter_mappings = ale#Var(a:buffer, 'filename_mappings')
+
+    if type(l:linter_mappings) is v:t_list
+        return l:linter_mappings
+    endif
+
+    let l:name = a:name
+
+    if !has_key(l:linter_mappings, l:name)
+        " Use * as a default setting for all tools.
+        let l:name = '*'
+    endif
+
+    return get(l:linter_mappings, l:name, [])
+endfunction

autoload/ale/assert.vim

@@ -130,7 +130,7 @@ endfunction
 function! ale#assert#LSPLanguage(expected_language) abort
     let l:buffer = bufnr('')
     let l:linter = s:GetLinter()
-    let l:language = ale#util#GetFunction(l:linter.language_callback)(l:buffer)
+    let l:language = ale#linter#GetLanguage(l:buffer, l:linter)
 
     AssertEqual a:expected_language, l:language
 endfunction

autoload/ale/c.vim

@@ -2,20 +2,28 @@
 " Description: Functions for integrating with C-family linters.
 
 call ale#Set('c_parse_makefile', 0)
-call ale#Set('c_parse_compile_commands', 0)
+call ale#Set('c_always_make', has('unix') && !has('macunix'))
+call ale#Set('c_parse_compile_commands', 1)
+
 let s:sep = has('win32') ? '\' : '/'
 
 " Set just so tests can override it.
 let g:__ale_c_project_filenames = ['.git/HEAD', 'configure', 'Makefile', 'CMakeLists.txt']
 
-function! ale#c#GetBuildDirectory(buffer) abort
-    " Don't include build directory for header files, as compile_commands.json
-    " files don't consider headers to be translation units, and provide no
-    " commands for compiling header files.
-    if expand('#' . a:buffer) =~# '\v\.(h|hpp)$'
-        return ''
-    endif
+let g:ale_c_build_dir_names = get(g:, 'ale_c_build_dir_names', [
+\   'build',
+\   'bin',
+\])
 
+function! s:CanParseMakefile(buffer) abort
+    " Something somewhere seems to delete this setting in tests, so ensure we
+    " always have a default value.
+    call ale#Set('c_parse_makefile', 0)
+
+    return ale#Var(a:buffer, 'c_parse_makefile')
+endfunction
+
+function! ale#c#GetBuildDirectory(buffer) abort
     let l:build_dir = ale#Var(a:buffer, 'c_build_dir')
 
     " c_build_dir has the priority if defined
@@ -68,14 +76,73 @@ function! ale#c#ShellSplit(line) abort
     return l:args
 endfunction
 
-function! ale#c#ParseCFlags(path_prefix, cflag_line) abort
-    let l:cflags_list = []
+" Takes the path prefix and a list of cflags and expands @file arguments to
+" the contents of the file.
+"
+" @file arguments are command line arguments recognised by gcc and clang. For
+" instance, if @./path/to/file was given to gcc, it would load .path/to/file
+" and use the contents of that file as arguments.
+function! ale#c#ExpandAtArgs(path_prefix, raw_split_lines) abort
+    let l:out_lines = []
 
-    let l:split_lines = ale#c#ShellSplit(a:cflag_line)
+    for l:option in a:raw_split_lines
+        if stridx(l:option, '@') == 0
+            " This is an argument specifying a location of a file containing other arguments
+            let l:path = join(split(l:option, '\zs')[1:], '')
+
+            " Make path absolute
+            if !ale#path#IsAbsolute(l:path)
+                let l:rel_path = substitute(l:path, '"', '', 'g')
+                let l:rel_path = substitute(l:rel_path, '''', '', 'g')
+                let l:path = ale#path#GetAbsPath(a:path_prefix, l:rel_path)
+            endif
+
+            " Read the file and add all the arguments
+            try
+                let l:additional_args = readfile(l:path)
+            catch
+                continue " All we can really do is skip this argument
+            endtry
+
+            let l:file_lines = []
+
+            for l:line in l:additional_args
+                let l:file_lines += ale#c#ShellSplit(l:line)
+            endfor
+
+            " @file arguments can include other @file arguments, so we must
+            " recurse.
+            let l:out_lines += ale#c#ExpandAtArgs(a:path_prefix, l:file_lines)
+        else
+            " This is not an @file argument, so don't touch it.
+            let l:out_lines += [l:option]
+        endif
+    endfor
+
+    return l:out_lines
+endfunction
+
+" Quote C/C++ a compiler argument, if needed.
+"
+" Quoting arguments might cause issues with some systems/compilers, so we only
+" quote them if we need to.
+function! ale#c#QuoteArg(arg) abort
+    if a:arg !~# '\v[#$&*()\\|[\]{};''"<>/?! ^%]'
+        return a:arg
+    endif
+
+    return ale#Escape(a:arg)
+endfunction
+
+function! ale#c#ParseCFlags(path_prefix, should_quote, raw_arguments) abort
+    " Expand @file arguments now before parsing
+    let l:arguments = ale#c#ExpandAtArgs(a:path_prefix, a:raw_arguments)
+    " A list of [already_quoted, argument]
+    let l:items = []
     let l:option_index = 0
 
-    while l:option_index < len(l:split_lines)
-        let l:option = l:split_lines[l:option_index]
+    while l:option_index < len(l:arguments)
+        let l:option = l:arguments[l:option_index]
         let l:option_index = l:option_index + 1
 
         " Include options, that may need relative path fix
@@ -83,56 +150,67 @@ function! ale#c#ParseCFlags(path_prefix, cflag_line) abort
         \ || stridx(l:option, '-iquote') == 0
         \ || stridx(l:option, '-isystem') == 0
         \ || stridx(l:option, '-idirafter') == 0
+        \ || stridx(l:option, '-iframework') == 0
+        \ || stridx(l:option, '-include') == 0
             if stridx(l:option, '-I') == 0 && l:option isnot# '-I'
                 let l:arg = join(split(l:option, '\zs')[2:], '')
                 let l:option = '-I'
             else
-                let l:arg = l:split_lines[l:option_index]
+                let l:arg = l:arguments[l:option_index]
                 let l:option_index = l:option_index + 1
             endif
 
             " Fix relative paths if needed
-            if stridx(l:arg, s:sep) != 0 && stridx(l:arg, '/') != 0
+            if !ale#path#IsAbsolute(l:arg)
                 let l:rel_path = substitute(l:arg, '"', '', 'g')
                 let l:rel_path = substitute(l:rel_path, '''', '', 'g')
-                let l:arg = ale#Escape(a:path_prefix . s:sep . l:rel_path)
+                let l:arg = ale#path#GetAbsPath(a:path_prefix, l:rel_path)
             endif
 
-            call add(l:cflags_list, l:option)
-            call add(l:cflags_list, l:arg)
+            call add(l:items, [1, l:option])
+            call add(l:items, [1, ale#Escape(l:arg)])
         " Options with arg that can be grouped with the option or separate
         elseif stridx(l:option, '-D') == 0 || stridx(l:option, '-B') == 0
-            call add(l:cflags_list, l:option)
-
             if l:option is# '-D' || l:option is# '-B'
-                call add(l:cflags_list, l:split_lines[l:option_index])
+                call add(l:items, [1, l:option])
+                call add(l:items, [0, l:arguments[l:option_index]])
                 let l:option_index = l:option_index + 1
+            else
+                call add(l:items, [0, l:option])
             endif
         " Options that have an argument (always separate)
         elseif l:option is# '-iprefix' || stridx(l:option, '-iwithprefix') == 0
         \ || l:option is# '-isysroot' || l:option is# '-imultilib'
-            call add(l:cflags_list, l:option)
-            call add(l:cflags_list, l:split_lines[l:option_index])
+            call add(l:items, [0, l:option])
+            call add(l:items, [0, l:arguments[l:option_index]])
             let l:option_index = l:option_index + 1
         " Options without argument
         elseif (stridx(l:option, '-W') == 0 && stridx(l:option, '-Wa,') != 0 && stridx(l:option, '-Wl,') != 0 && stridx(l:option, '-Wp,') != 0)
         \ || l:option is# '-w' || stridx(l:option, '-pedantic') == 0
         \ || l:option is# '-ansi' || stridx(l:option, '-std=') == 0
-        \ || (stridx(l:option, '-f') == 0 && stridx(l:option, '-fdump') != 0 && stridx(l:option, '-fdiagnostics') != 0 && stridx(l:option, '-fno-show-column') != 0)
+        \ || stridx(l:option, '-f') == 0 && l:option !~# '\v^-f(dump|diagnostics|no-show-column|stack-usage)'
         \ || stridx(l:option, '-O') == 0
         \ || l:option is# '-C' || l:option is# '-CC' || l:option is# '-trigraphs'
         \ || stridx(l:option, '-nostdinc') == 0 || stridx(l:option, '-iplugindir=') == 0
         \ || stridx(l:option, '--sysroot=') == 0 || l:option is# '--no-sysroot-suffix'
         \ || stridx(l:option, '-m') == 0
-            call add(l:cflags_list, l:option)
+            call add(l:items, [0, l:option])
         endif
     endwhile
 
-    return join(l:cflags_list, ' ')
+    if a:should_quote
+        " Quote C arguments that haven't already been quoted above.
+        " If and only if we've been asked to quote them.
+        call map(l:items, 'v:val[0] ? v:val[1] : ale#c#QuoteArg(v:val[1])')
+    else
+        call map(l:items, 'v:val[1]')
+    endif
+
+    return join(l:items, ' ')
 endfunction
 
 function! ale#c#ParseCFlagsFromMakeOutput(buffer, make_output) abort
-    if !g:ale_c_parse_makefile
+    if !s:CanParseMakefile(a:buffer)
         return v:null
     endif
 
@@ -150,7 +228,7 @@ function! ale#c#ParseCFlagsFromMakeOutput(buffer, make_output) abort
     let l:makefile_path = ale#path#FindNearestFile(a:buffer, 'Makefile')
     let l:makefile_dir = fnamemodify(l:makefile_path, ':p:h')
 
-    return ale#c#ParseCFlags(l:makefile_dir, l:cflag_line)
+    return ale#c#ParseCFlags(l:makefile_dir, 0, ale#c#ShellSplit(l:cflag_line))
 endfunction
 
 " Given a buffer number, find the project directory containing
@@ -218,6 +296,10 @@ if !exists('s:compile_commands_cache')
     let s:compile_commands_cache = {}
 endif
 
+function! ale#c#ResetCompileCommandsCache() abort
+    let s:compile_commands_cache = {}
+endfunction
+
 function! s:GetLookupFromCompileCommandsFile(compile_commands_file) abort
     let l:empty = [{}, {}]
 
@@ -248,9 +330,20 @@ function! s:GetLookupFromCompileCommandsFile(compile_commands_file) abort
     let l:dir_lookup = {}
 
     for l:entry in (type(l:raw_data) is v:t_list ? l:raw_data : [])
+        let l:filename = ale#path#GetAbsPath(l:entry.directory, l:entry.file)
+
+        " Store a key for lookups by the absolute path to the filename.
+        let l:file_lookup[l:filename] = get(l:file_lookup, l:filename, []) + [l:entry]
+
+        " Store a key for fuzzy lookups by the absolute path to the directory.
+        let l:dirname = fnamemodify(l:filename, ':h')
+        let l:dir_lookup[l:dirname] = get(l:dir_lookup, l:dirname, []) + [l:entry]
+
+        " Store a key for fuzzy lookups by just the basename of the file.
         let l:basename = tolower(fnamemodify(l:entry.file, ':t'))
         let l:file_lookup[l:basename] = get(l:file_lookup, l:basename, []) + [l:entry]
 
+        " Store a key for fuzzy lookups by just the basename of the directory.
         let l:dirbasename = tolower(fnamemodify(l:entry.directory, ':p:h:t'))
         let l:dir_lookup[l:dirbasename] = get(l:dir_lookup, l:dirbasename, []) + [l:entry]
     endfor
@@ -265,28 +358,80 @@ function! s:GetLookupFromCompileCommandsFile(compile_commands_file) abort
     return l:empty
 endfunction
 
-function! ale#c#GetCompileCommand(json_item) abort
-    if has_key(a:json_item, 'command')
-        return a:json_item.command
-    elseif has_key(a:json_item, 'arguments')
-        return join(a:json_item.arguments, ' ')
+" Get [should_quote, arguments] from either 'command' or 'arguments'
+" 'arguments' should be quoted later, the split 'command' strings should not.
+function! s:GetArguments(json_item) abort
+    if has_key(a:json_item, 'arguments')
+        return [1, a:json_item.arguments]
+    elseif has_key(a:json_item, 'command')
+        return [0, ale#c#ShellSplit(a:json_item.command)]
     endif
 
-    return ''
+    return [0, []]
 endfunction
 
 function! ale#c#ParseCompileCommandsFlags(buffer, file_lookup, dir_lookup) abort
+    let l:buffer_filename = ale#path#Simplify(expand('#' . a:buffer . ':p'))
+    let l:basename = tolower(fnamemodify(l:buffer_filename, ':t'))
+    " Look for any file in the same directory if we can't find an exact match.
+    let l:dir = fnamemodify(l:buffer_filename, ':h')
+
     " Search for an exact file match first.
-    let l:basename = tolower(expand('#' . a:buffer . ':t'))
-    let l:file_list = get(a:file_lookup, l:basename, [])
+    let l:file_list = get(a:file_lookup, l:buffer_filename, [])
+
+    " We may have to look for /foo/bar instead of C:\foo\bar
+    if empty(l:file_list) && has('win32')
+        let l:file_list = get(
+        \   a:file_lookup,
+        \   ale#path#RemoveDriveLetter(l:buffer_filename),
+        \   []
+        \)
+    endif
+
+    " Try the absolute path to the directory second.
+    let l:dir_list = get(a:dir_lookup, l:dir, [])
+
+    if empty(l:dir_list) && has('win32')
+        let l:dir_list = get(
+        \   a:dir_lookup,
+        \   ale#path#RemoveDriveLetter(l:dir),
+        \   []
+        \)
+    endif
+
+    if empty(l:file_list) && empty(l:dir_list)
+        " If we can't find matches with the path to the file, try a
+        " case-insensitive match for any similarly-named file.
+        let l:file_list = get(a:file_lookup, l:basename, [])
+
+        " If we can't find matches with the path to the directory, try a
+        " case-insensitive match for anything in similarly-named directory.
+        let l:dir_list = get(a:dir_lookup, tolower(fnamemodify(l:dir, ':t')), [])
+    endif
+
     " A source file matching the header filename.
     let l:source_file = ''
 
     if empty(l:file_list) && l:basename =~? '\.h$\|\.hpp$'
         for l:suffix in ['.c', '.cpp']
-            let l:key = fnamemodify(l:basename, ':r') . l:suffix
+            " Try to find a source file by an absolute path first.
+            let l:key = fnamemodify(l:buffer_filename, ':r') . l:suffix
             let l:file_list = get(a:file_lookup, l:key, [])
 
+            if empty(l:file_list) && has('win32')
+                let l:file_list = get(
+                \   a:file_lookup,
+                \   ale#path#RemoveDriveLetter(l:key),
+                \   []
+                \)
+            endif
+
+            if empty(l:file_list)
+                " Look fuzzy matches on the basename second.
+                let l:key = fnamemodify(l:basename, ':r') . l:suffix
+                let l:file_list = get(a:file_lookup, l:key, [])
+            endif
+
             if !empty(l:file_list)
                 let l:source_file = l:key
                 break
@@ -295,28 +440,31 @@ function! ale#c#ParseCompileCommandsFlags(buffer, file_lookup, dir_lookup) abort
     endif
 
     for l:item in l:file_list
+        let l:filename = ale#path#GetAbsPath(l:item.directory, l:item.file)
+
         " Load the flags for this file, or for a source file matching the
         " header file.
         if (
-        \   bufnr(l:item.file) is a:buffer
+        \   bufnr(l:filename) is a:buffer
         \   || (
         \       !empty(l:source_file)
-        \       && l:item.file[-len(l:source_file):] is? l:source_file
+        \       && l:filename[-len(l:source_file):] is? l:source_file
         \   )
         \)
-            return ale#c#ParseCFlags(l:item.directory, ale#c#GetCompileCommand(l:item))
+            let [l:should_quote, l:args] = s:GetArguments(l:item)
+
+            return ale#c#ParseCFlags(l:item.directory, l:should_quote, l:args)
         endif
     endfor
 
-    " Look for any file in the same directory if we can't find an exact match.
-    let l:dir = ale#path#Simplify(expand('#' . a:buffer . ':p:h'))
-
-    let l:dirbasename = tolower(expand('#' . a:buffer . ':p:h:t'))
-    let l:dir_list = get(a:dir_lookup, l:dirbasename, [])
-
     for l:item in l:dir_list
-        if ale#path#Simplify(fnamemodify(l:item.file, ':h')) is? l:dir
-            return ale#c#ParseCFlags(l:item.directory, ale#c#GetCompileCommand(l:item))
+        let l:filename = ale#path#GetAbsPath(l:item.directory, l:item.file)
+
+        if ale#path#RemoveDriveLetter(fnamemodify(l:filename, ':h'))
+        \  is? ale#path#RemoveDriveLetter(l:dir)
+            let [l:should_quote, l:args] = s:GetArguments(l:item)
+
+            return ale#c#ParseCFlags(l:item.directory, l:should_quote, l:args)
         endif
     endfor
 
@@ -334,10 +482,6 @@ endfunction
 function! ale#c#GetCFlags(buffer, output) abort
     let l:cflags = v:null
 
-    if ale#Var(a:buffer, 'c_parse_makefile') && !empty(a:output)
-        let l:cflags = ale#c#ParseCFlagsFromMakeOutput(a:buffer, a:output)
-    endif
-
     if ale#Var(a:buffer, 'c_parse_compile_commands')
         let [l:root, l:json_file] = ale#c#FindCompileCommands(a:buffer)
 
@@ -346,6 +490,10 @@ function! ale#c#GetCFlags(buffer, output) abort
         endif
     endif
 
+    if s:CanParseMakefile(a:buffer) && !empty(a:output) && !empty(l:cflags)
+        let l:cflags = ale#c#ParseCFlagsFromMakeOutput(a:buffer, a:output)
+    endif
+
     if l:cflags is v:null
         let l:cflags = ale#c#IncludeOptions(ale#c#FindLocalHeaderPaths(a:buffer))
     endif
@@ -354,11 +502,14 @@ function! ale#c#GetCFlags(buffer, output) abort
 endfunction
 
 function! ale#c#GetMakeCommand(buffer) abort
-    if ale#Var(a:buffer, 'c_parse_makefile')
-        let l:makefile_path = ale#path#FindNearestFile(a:buffer, 'Makefile')
+    if s:CanParseMakefile(a:buffer)
+        let l:path = ale#path#FindNearestFile(a:buffer, 'Makefile')
 
-        if !empty(l:makefile_path)
-            return 'cd '. fnamemodify(l:makefile_path, ':p:h') . ' && make -n'
+        if !empty(l:path)
+            let l:always_make = ale#Var(a:buffer, 'c_always_make')
+
+            return ale#path#CdString(fnamemodify(l:path, ':h'))
+            \   . 'make -n' . (l:always_make ? ' --always-make' : '')
         endif
     endif
 
@@ -427,8 +578,3 @@ function! ale#c#IncludeOptions(include_paths) abort
 
     return join(l:option_list)
 endfunction
-
-let g:ale_c_build_dir_names = get(g:, 'ale_c_build_dir_names', [
-\   'build',
-\   'bin',
-\])

autoload/ale/code_action.vim

@@ -24,6 +24,42 @@ function! ale#code_action#HandleCodeAction(code_action, should_save) abort
     endfor
 endfunction
 
+function! s:ChangeCmp(left, right) abort
+    if a:left.start.line < a:right.start.line
+        return -1
+    endif
+
+    if a:left.start.line > a:right.start.line
+        return 1
+    endif
+
+    if a:left.start.offset < a:right.start.offset
+        return -1
+    endif
+
+    if a:left.start.offset > a:right.start.offset
+        return 1
+    endif
+
+    if a:left.end.line < a:right.end.line
+        return -1
+    endif
+
+    if a:left.end.line > a:right.end.line
+        return 1
+    endif
+
+    if a:left.end.offset < a:right.end.offset
+        return -1
+    endif
+
+    if a:left.end.offset > a:right.end.offset
+        return 1
+    endif
+
+    return 0
+endfunction
+
 function! ale#code_action#ApplyChanges(filename, changes, should_save) abort
     let l:current_buffer = bufnr('')
     " The buffer is used to determine the fileformat, if available.
@@ -48,7 +84,8 @@ function! ale#code_action#ApplyChanges(filename, changes, should_save) abort
     let l:column_offset = 0
     let l:last_end_line = 0
 
-    for l:code_edit in a:changes
+    " Changes have to be sorted so we apply them from top-to-bottom.
+    for l:code_edit in sort(copy(a:changes), function('s:ChangeCmp'))
         if l:code_edit.start.line isnot l:last_end_line
             let l:column_offset = 0
         endif

autoload/ale/command.vim

@@ -133,11 +133,36 @@ function! ale#command#EscapeCommandPart(command_part) abort
     return substitute(a:command_part, '%', '%%', 'g')
 endfunction
 
+" Format a filename, converting it with filename mappings, if non-empty,
+" and escaping it for putting into a command string.
+"
+" The filename can be modified.
+function! s:FormatFilename(filename, mappings, modifiers) abort
+    let l:filename = a:filename
+
+    if !empty(a:mappings)
+        let l:filename = ale#filename_mapping#Map(l:filename, a:mappings)
+    endif
+
+    if !empty(a:modifiers)
+        let l:filename = fnamemodify(l:filename, a:modifiers)
+    endif
+
+    return ale#Escape(l:filename)
+endfunction
+
 " Given a command string, replace every...
 " %s -> with the current filename
 " %t -> with the name of an unused file in a temporary directory
 " %% -> with a literal %
-function! ale#command#FormatCommand(buffer, executable, command, pipe_file_if_needed, input) abort
+function! ale#command#FormatCommand(
+\   buffer,
+\   executable,
+\   command,
+\   pipe_file_if_needed,
+\   input,
+\   mappings,
+\) abort
     let l:temporary_file = ''
     let l:command = a:command
 
@@ -154,14 +179,24 @@ function! ale#command#FormatCommand(buffer, executable, command, pipe_file_if_ne
     " file.
     if l:command =~# '%s'
         let l:filename = fnamemodify(bufname(a:buffer), ':p')
-        let l:command = substitute(l:command, '%s', '\=ale#Escape(l:filename)', 'g')
+        let l:command = substitute(
+        \   l:command,
+        \   '\v\%s(%(:h|:t|:r|:e)*)',
+        \   '\=s:FormatFilename(l:filename, a:mappings, submatch(1))',
+        \   'g'
+        \)
     endif
 
     if a:input isnot v:false && l:command =~# '%t'
         " Create a temporary filename, <temp_dir>/<original_basename>
         " The file itself will not be created by this function.
         let l:temporary_file = s:TemporaryFilename(a:buffer)
-        let l:command = substitute(l:command, '%t', '\=ale#Escape(l:temporary_file)', 'g')
+        let l:command = substitute(
+        \   l:command,
+        \   '\v\%t(%(:h|:t|:r|:e)*)',
+        \   '\=s:FormatFilename(l:temporary_file, a:mappings, submatch(1))',
+        \   'g'
+        \)
     endif
 
     " Finish formatting so %% becomes %.
@@ -265,6 +300,7 @@ function! ale#command#Run(buffer, command, Callback, ...) abort
     \   a:command,
     \   get(l:options, 'read_buffer', 0),
     \   get(l:options, 'input', v:null),
+    \   get(l:options, 'filename_mappings', []),
     \)
     let l:command = ale#job#PrepareCommand(a:buffer, l:command)
     let l:job_options = {

autoload/ale/completion.vim

@@ -5,7 +5,7 @@ scriptencoding utf-8
 " The omnicompletion menu is shown through a special Plug mapping which is
 " only valid in Insert mode. This way, feedkeys() won't send these keys if you
 " quit Insert mode quickly enough.
-inoremap <silent> <Plug>(ale_show_completion_menu) <C-x><C-o>
+inoremap <silent> <Plug>(ale_show_completion_menu) <C-x><C-o><C-p>
 " If we hit the key sequence in normal mode, then we won't show the menu, so
 " we should restore the old settings right away.
 nnoremap <silent> <Plug>(ale_show_completion_menu) :call ale#completion#RestoreCompletionOptions()<CR>
@@ -16,7 +16,8 @@ onoremap <silent> <Plug>(ale_show_completion_menu) <Nop>
 let g:ale_completion_delay = get(g:, 'ale_completion_delay', 100)
 let g:ale_completion_excluded_words = get(g:, 'ale_completion_excluded_words', [])
 let g:ale_completion_max_suggestions = get(g:, 'ale_completion_max_suggestions', 50)
-let g:ale_completion_tsserver_autoimport = get(g:, 'ale_completion_tsserver_autoimport', 0)
+let g:ale_completion_autoimport = get(g:, 'ale_completion_autoimport', 0)
+let g:ale_completion_tsserver_remove_warnings = get(g:, 'ale_completion_tsserver_remove_warnings', 0)
 
 let s:timer_id = -1
 let s:last_done_pos = []
@@ -187,7 +188,13 @@ function! ale#completion#GetTriggerCharacter(filetype, prefix) abort
     return ''
 endfunction
 
-function! ale#completion#Filter(buffer, filetype, suggestions, prefix) abort
+function! ale#completion#Filter(
+\   buffer,
+\   filetype,
+\   suggestions,
+\   prefix,
+\   exact_prefix_match,
+\) abort
     let l:excluded_words = ale#Var(a:buffer, 'completion_excluded_words')
 
     if empty(a:prefix)
@@ -214,10 +221,17 @@ function! ale#completion#Filter(buffer, filetype, suggestions, prefix) abort
                 " Dictionaries is accepted here.
                 let l:word = type(l:item) is v:t_string ? l:item : l:item.word
 
-                " Add suggestions if the suggestion starts with a
-                " case-insensitive match for the prefix.
-                if l:word[: len(a:prefix) - 1] is? a:prefix
-                    call add(l:filtered_suggestions, l:item)
+                if a:exact_prefix_match
+                    " Add suggestions if the word is an exact match.
+                    if l:word is# a:prefix
+                        call add(l:filtered_suggestions, l:item)
+                    endif
+                else
+                    " Add suggestions if the suggestion starts with a
+                    " case-insensitive match for the prefix.
+                    if l:word[: len(a:prefix) - 1] is? a:prefix
+                        call add(l:filtered_suggestions, l:item)
+                    endif
                 endif
             endfor
         endif
@@ -240,21 +254,17 @@ function! ale#completion#Filter(buffer, filetype, suggestions, prefix) abort
     return l:filtered_suggestions
 endfunction
 
-function! s:ReplaceCompletionOptions() abort
-    let l:source = get(get(b:, 'ale_completion_info', {}), 'source', '')
-
-    if l:source is# 'ale-automatic' || l:source is# 'ale-manual'
-        " Remember the old omnifunc value, if there is one.
-        " If we don't store an old one, we'll just never reset the option.
-        " This will stop some random exceptions from appearing.
-        if !exists('b:ale_old_omnifunc') && !empty(&l:omnifunc)
-            let b:ale_old_omnifunc = &l:omnifunc
-        endif
-
-        let &l:omnifunc = 'ale#completion#AutomaticOmniFunc'
+function! s:ReplaceCompletionOptions(source) abort
+    " Remember the old omnifunc value, if there is one.
+    " If we don't store an old one, we'll just never reset the option.
+    " This will stop some random exceptions from appearing.
+    if !exists('b:ale_old_omnifunc') && !empty(&l:omnifunc)
+        let b:ale_old_omnifunc = &l:omnifunc
     endif
 
-    if l:source is# 'ale-automatic'
+    let &l:omnifunc = 'ale#completion#AutomaticOmniFunc'
+
+    if a:source is# 'ale-automatic'
         if !exists('b:ale_old_completeopt')
             let b:ale_old_completeopt = &l:completeopt
         endif
@@ -317,41 +327,70 @@ function! ale#completion#AutomaticOmniFunc(findstart, base) abort
     else
         let l:result = ale#completion#GetCompletionResult()
 
-        call s:ReplaceCompletionOptions()
+        let l:source = get(get(b:, 'ale_completion_info', {}), 'source', '')
+
+        if l:source is# 'ale-automatic' || l:source is# 'ale-manual'
+            call s:ReplaceCompletionOptions(l:source)
+        endif
 
         return l:result isnot v:null ? l:result : []
     endif
 endfunction
 
+function! s:OpenCompletionMenu(...) abort
+    if !&l:paste
+        call ale#util#FeedKeys("\<Plug>(ale_show_completion_menu)")
+    endif
+endfunction
+
 function! ale#completion#Show(result) abort
-    if ale#util#Mode() isnot# 'i'
+    let l:source = get(get(b:, 'ale_completion_info', {}), 'source', '')
+
+    if ale#util#Mode() isnot# 'i' && l:source isnot# 'ale-import'
         return
     endif
 
-    " Set the list in the buffer, temporarily replace omnifunc with our
-    " function, and then start omni-completion.
+    " Set the list in the buffer.
     let b:ale_completion_result = a:result
 
     " Don't try to open the completion menu if there's nothing to show.
     if empty(b:ale_completion_result)
+        if l:source is# 'ale-import'
+            " If we ran completion from :ALEImport,
+            " tell the user that nothing is going to happen.
+            call s:message('No possible imports found.')
+        endif
+
         return
     endif
 
     " Replace completion options shortly before opening the menu.
-    call s:ReplaceCompletionOptions()
-
-    let l:source = get(get(b:, 'ale_completion_info', {}), 'source', '')
-
     if l:source is# 'ale-automatic' || l:source is# 'ale-manual'
-        call timer_start(
-        \   0,
-        \   {-> ale#util#FeedKeys("\<Plug>(ale_show_completion_menu)")}
-        \)
+        call s:ReplaceCompletionOptions(l:source)
+
+        call timer_start(0, function('s:OpenCompletionMenu'))
     endif
 
     if l:source is# 'ale-callback'
         call b:CompleteCallback(b:ale_completion_result)
     endif
+
+    if l:source is# 'ale-import'
+        call ale#completion#HandleUserData(b:ale_completion_result[0])
+
+        let l:text_changed = '' . g:ale_lint_on_text_changed
+
+        " Check the buffer again right away, if linting is enabled.
+        if g:ale_enabled
+        \&& (
+        \   l:text_changed is# '1'
+        \   || l:text_changed is# 'always'
+        \   || l:text_changed is# 'normal'
+        \   || l:text_changed is# 'insert'
+        \)
+            call ale#Queue(0, '')
+        endif
+    endif
 endfunction
 
 function! ale#completion#GetAllTriggers() abort
@@ -382,14 +421,18 @@ endfunction
 function! s:CompletionStillValid(request_id) abort
     let [l:line, l:column] = getpos('.')[1:2]
 
-    return ale#util#Mode() is# 'i'
-    \&& has_key(b:, 'ale_completion_info')
+    return has_key(b:, 'ale_completion_info')
+    \&& (
+    \   ale#util#Mode() is# 'i'
+    \   || b:ale_completion_info.source is# 'ale-import'
+    \)
     \&& b:ale_completion_info.request_id == a:request_id
     \&& b:ale_completion_info.line == l:line
     \&& (
     \   b:ale_completion_info.column == l:column
     \   || b:ale_completion_info.source is# 'ale-omnifunc'
     \   || b:ale_completion_info.source is# 'ale-callback'
+    \   || b:ale_completion_info.source is# 'ale-import'
     \)
 endfunction
 
@@ -397,10 +440,14 @@ function! ale#completion#ParseTSServerCompletions(response) abort
     let l:names = []
 
     for l:suggestion in a:response.body
-        call add(l:names, {
-        \ 'word': l:suggestion.name,
-        \ 'source': get(l:suggestion, 'source', ''),
-        \})
+        let l:kind = get(l:suggestion, 'kind', '')
+
+        if g:ale_completion_tsserver_remove_warnings == 0 || l:kind isnot# 'warning'
+            call add(l:names, {
+            \ 'word': l:suggestion.name,
+            \ 'source': get(l:suggestion, 'source', ''),
+            \})
+        endif
     endfor
 
     return l:names
@@ -410,15 +457,26 @@ function! ale#completion#ParseTSServerCompletionEntryDetails(response) abort
     let l:buffer = bufnr('')
     let l:results = []
     let l:names_with_details = []
+    let l:info = get(b:, 'ale_completion_info', {})
 
     for l:suggestion in a:response.body
         let l:displayParts = []
+        let l:local_name = v:null
 
         for l:action in get(l:suggestion, 'codeActions', [])
             call add(l:displayParts, l:action.description . ' ')
         endfor
 
         for l:part in l:suggestion.displayParts
+            " Stop on stop on line breaks for the menu.
+            if get(l:part, 'kind') is# 'lineBreak'
+                break
+            endif
+
+            if get(l:part, 'kind') is# 'localName'
+                let l:local_name = l:part.text
+            endif
+
             call add(l:displayParts, l:part.text)
         endfor
 
@@ -431,21 +489,35 @@ function! ale#completion#ParseTSServerCompletionEntryDetails(response) abort
 
         " See :help complete-items
         let l:result = {
-        \   'word': l:suggestion.name,
+        \   'word': (
+        \       l:suggestion.name is# 'default'
+        \       && l:suggestion.kind is# 'alias'
+        \       && !empty(l:local_name)
+        \           ? l:local_name
+        \           : l:suggestion.name
+        \   ),
         \   'kind': ale#completion#GetCompletionSymbols(l:suggestion.kind),
         \   'icase': 1,
         \   'menu': join(l:displayParts, ''),
-        \   'dup': g:ale_completion_tsserver_autoimport,
+        \   'dup': get(l:info, 'additional_edits_only', 0)
+        \       ||  g:ale_completion_autoimport,
         \   'info': join(l:documentationParts, ''),
         \}
+        " This flag is used to tell if this completion came from ALE or not.
+        let l:user_data = {'_ale_completion_item': 1}
 
         if has_key(l:suggestion, 'codeActions')
-            let l:result.user_data = json_encode({
-            \   'codeActions': l:suggestion.codeActions,
-            \ })
+            let l:user_data.code_actions = l:suggestion.codeActions
         endif
 
-        call add(l:results, l:result)
+        let l:result.user_data = json_encode(l:user_data)
+
+        " Include this item if we'll accept any items,
+        " or if we only want items with additional edits, and this has them.
+        if !get(l:info, 'additional_edits_only', 0)
+        \|| has_key(l:user_data, 'code_actions')
+            call add(l:results, l:result)
+        endif
     endfor
 
     let l:names = getbufvar(l:buffer, 'ale_tsserver_completion_names', [])
@@ -464,6 +536,7 @@ function! ale#completion#ParseTSServerCompletionEntryDetails(response) abort
             \   'icase': 1,
             \   'menu': '',
             \   'info': '',
+            \   'user_data': json_encode({'_ale_completion_item': 1}),
             \})
         endfor
     endif
@@ -517,23 +590,80 @@ function! ale#completion#ParseLSPCompletions(response) abort
             continue
         endif
 
+        " Don't use LSP items with additional text edits when autoimport for
+        " completions is turned off.
+        if !empty(get(l:item, 'additionalTextEdits'))
+        \&& !(
+        \   get(l:info, 'additional_edits_only', 0)
+        \   || g:ale_completion_autoimport
+        \)
+            continue
+        endif
+
         let l:doc = get(l:item, 'documentation', '')
 
         if type(l:doc) is v:t_dict && has_key(l:doc, 'value')
             let l:doc = l:doc.value
         endif
 
-        call add(l:results, {
+        let l:result = {
         \   'word': l:word,
         \   'kind': ale#completion#GetCompletionSymbols(get(l:item, 'kind', '')),
         \   'icase': 1,
         \   'menu': get(l:item, 'detail', ''),
         \   'info': (type(l:doc) is v:t_string ? l:doc : ''),
-        \})
+        \}
+        " This flag is used to tell if this completion came from ALE or not.
+        let l:user_data = {'_ale_completion_item': 1}
+
+        if has_key(l:item, 'additionalTextEdits')
+            let l:text_changes = []
+
+            for l:edit in l:item.additionalTextEdits
+                call add(l:text_changes, {
+                \ 'start': {
+                \   'line': l:edit.range.start.line + 1,
+                \   'offset': l:edit.range.start.character + 1,
+                \ },
+                \ 'end': {
+                \   'line': l:edit.range.end.line + 1,
+                \   'offset': l:edit.range.end.character + 1,
+                \ },
+                \ 'newText': l:edit.newText,
+                \})
+            endfor
+
+            if !empty(l:text_changes)
+                let l:user_data.code_actions = [{
+                \   'description': 'completion',
+                \   'changes': [
+                \       {
+                \           'fileName': expand('#' . l:buffer . ':p'),
+                \           'textChanges': l:text_changes,
+                \       },
+                \   ],
+                \}]
+            endif
+        endif
+
+        let l:result.user_data = json_encode(l:user_data)
+
+        " Include this item if we'll accept any items,
+        " or if we only want items with additional edits, and this has them.
+        if !get(l:info, 'additional_edits_only', 0)
+        \|| has_key(l:user_data, 'code_actions')
+            call add(l:results, l:result)
+        endif
     endfor
 
     if has_key(l:info, 'prefix')
-        let l:results = ale#completion#Filter(l:buffer, &filetype, l:results, l:info.prefix)
+        let l:results = ale#completion#Filter(
+        \   l:buffer,
+        \   &filetype,
+        \   l:results,
+        \   l:info.prefix,
+        \   get(l:info, 'additional_edits_only', 0),
+        \)
     endif
 
     return l:results[: g:ale_completion_max_suggestions - 1]
@@ -557,13 +687,18 @@ function! ale#completion#HandleTSServerResponse(conn_id, response) abort
         \   &filetype,
         \   ale#completion#ParseTSServerCompletions(a:response),
         \   b:ale_completion_info.prefix,
+        \   get(b:ale_completion_info, 'additional_edits_only', 0),
         \)[: g:ale_completion_max_suggestions - 1]
 
         " We need to remember some names for tsserver, as it doesn't send
         " details back for everything we send.
         call setbufvar(l:buffer, 'ale_tsserver_completion_names', l:names)
 
-        if !empty(l:names)
+        if empty(l:names)
+            " Response with no results now and skip making a redundant request
+            " for nothing.
+            call ale#completion#Show([])
+        else
             let l:identifiers = []
 
             for l:name in l:names
@@ -628,12 +763,17 @@ function! s:OnReady(linter, lsp_details) abort
     call ale#lsp#RegisterCallback(l:id, l:Callback)
 
     if a:linter.lsp is# 'tsserver'
+        if get(g:, 'ale_completion_tsserver_autoimport') is 1
+            execute 'echom `g:ale_completion_tsserver_autoimport` is deprecated. Use `g:ale_completion_autoimport` instead.'''
+        endif
+
         let l:message = ale#lsp#tsserver_message#Completions(
         \   l:buffer,
         \   b:ale_completion_info.line,
         \   b:ale_completion_info.column,
         \   b:ale_completion_info.prefix,
-        \   g:ale_completion_tsserver_autoimport,
+        \   get(b:ale_completion_info, 'additional_edits_only', 0)
+        \       || g:ale_completion_autoimport,
         \)
     else
         " Send a message saying the buffer has changed first, otherwise
@@ -692,9 +832,19 @@ function! ale#completion#GetCompletions(...) abort
         let b:CompleteCallback = l:CompleteCallback
     endif
 
-    let [l:line, l:column] = getpos('.')[1:2]
+    if has_key(l:options, 'line') && has_key(l:options, 'column')
+        " Use a provided line and column, if given.
+        let l:line = l:options.line
+        let l:column = l:options.column
+    else
+        let [l:line, l:column] = getpos('.')[1:2]
+    endif
 
-    let l:prefix = ale#completion#GetPrefix(&filetype, l:line, l:column)
+    if has_key(l:options, 'prefix')
+        let l:prefix = l:options.prefix
+    else
+        let l:prefix = ale#completion#GetPrefix(&filetype, l:line, l:column)
+    endif
 
     if l:source is# 'ale-automatic' && empty(l:prefix)
         return 0
@@ -713,6 +863,11 @@ function! ale#completion#GetCompletions(...) abort
     \}
     unlet! b:ale_completion_result
 
+    if has_key(l:options, 'additional_edits_only')
+        let b:ale_completion_info.additional_edits_only =
+        \   l:options.additional_edits_only
+    endif
+
     let l:buffer = bufnr('')
     let l:Callback = function('s:OnReady')
 
@@ -729,6 +884,37 @@ function! ale#completion#GetCompletions(...) abort
     return l:started
 endfunction
 
+function! s:message(message) abort
+    call ale#util#Execute('echom ' . string(a:message))
+endfunction
+
+" This function implements the :ALEImport command.
+function! ale#completion#Import() abort
+    let l:word = expand('<cword>')
+
+    if empty(l:word)
+        call s:message('Nothing to complete at cursor!')
+
+        return
+    endif
+
+    let [l:line, l:column] = getpos('.')[1:2]
+    let l:column = searchpos('\V' . escape(l:word, '/\'), 'bn', l:line)[1]
+
+    if l:column isnot 0
+        let l:started = ale#completion#GetCompletions('ale-import', {
+        \   'line': l:line,
+        \   'column': l:column,
+        \   'prefix': l:word,
+        \   'additional_edits_only': 1,
+        \})
+
+        if !l:started
+            call s:message('No completion providers are available.')
+        endif
+    endif
+endfunction
+
 function! ale#completion#OmniFunc(findstart, base) abort
     if a:findstart
         let l:started = ale#completion#GetCompletions('ale-omnifunc')
@@ -802,29 +988,29 @@ function! ale#completion#Queue() abort
 endfunction
 
 function! ale#completion#HandleUserData(completed_item) abort
-    let l:source = get(get(b:, 'ale_completion_info', {}), 'source', '')
-
-    if l:source isnot# 'ale-automatic'
-    \&& l:source isnot# 'ale-manual'
-    \&& l:source isnot# 'ale-callback'
-        return
-    endif
-
     let l:user_data_json = get(a:completed_item, 'user_data', '')
-
-    if empty(l:user_data_json)
-        return
-    endif
-
-    let l:user_data = json_decode(l:user_data_json)
+    let l:user_data = !empty(l:user_data_json)
+    \   ? json_decode(l:user_data_json)
+    \   : v:null
 
     if type(l:user_data) isnot v:t_dict
+    \|| get(l:user_data, '_ale_completion_item', 0) isnot 1
         return
     endif
 
-    for l:code_action in get(l:user_data, 'codeActions', [])
-        call ale#code_action#HandleCodeAction(l:code_action, v:false)
-    endfor
+    let l:source = get(get(b:, 'ale_completion_info', {}), 'source', '')
+
+    if l:source is# 'ale-automatic'
+    \|| l:source is# 'ale-manual'
+    \|| l:source is# 'ale-callback'
+    \|| l:source is# 'ale-import'
+    \|| l:source is# 'ale-omnifunc'
+        for l:code_action in get(l:user_data, 'code_actions', [])
+            call ale#code_action#HandleCodeAction(l:code_action, v:false)
+        endfor
+    endif
+
+    silent doautocmd <nomodeline> User ALECompletePost
 endfunction
 
 function! ale#completion#Done() abort
@@ -836,6 +1022,8 @@ function! ale#completion#Done() abort
 endfunction
 
 augroup ALECompletionActions
+    autocmd!
+
     autocmd CompleteDone * call ale#completion#HandleUserData(v:completed_item)
 augroup END
 

autoload/ale/cursor.vim

@@ -39,6 +39,8 @@ function! ale#cursor#TruncatedEcho(original_message) abort
             endif
 
             exec 'echomsg l:message'
+        catch /E481/
+            " Do nothing if running from a visual selection.
         endtry
 
         " Reset the cursor position if we moved off the end of the line.

autoload/ale/debugging.vim

@@ -8,6 +8,7 @@ let s:global_variable_list = [
 \    'ale_completion_delay',
 \    'ale_completion_enabled',
 \    'ale_completion_max_suggestions',
+\    'ale_disable_lsp',
 \    'ale_echo_cursor',
 \    'ale_echo_msg_error_str',
 \    'ale_echo_msg_format',
@@ -28,6 +29,7 @@ let s:global_variable_list = [
 \    'ale_linter_aliases',
 \    'ale_linters',
 \    'ale_linters_explicit',
+\    'ale_linters_ignore',
 \    'ale_list_vertical',
 \    'ale_list_window_size',
 \    'ale_loclist_msg_format',
@@ -196,6 +198,7 @@ function! s:EchoLSPErrorMessages(all_linter_names) abort
 endfunction
 
 function! ale#debugging#Info() abort
+    let l:buffer = bufnr('')
     let l:filetype = &filetype
 
     " We get the list of enabled linters for free by the above function.
@@ -222,10 +225,20 @@ function! ale#debugging#Info() abort
     let l:fixers = uniq(sort(l:fixers[0] + l:fixers[1]))
     let l:fixers_string = join(map(copy(l:fixers), '"\n  " . v:val'), '')
 
+    let l:non_ignored_names = map(
+    \   copy(ale#linter#RemoveIgnored(l:buffer, l:filetype, l:enabled_linters)),
+    \   'v:val[''name'']',
+    \)
+    let l:ignored_names = filter(
+    \   copy(l:enabled_names),
+    \   'index(l:non_ignored_names, v:val) < 0'
+    \)
+
     call s:Echo(' Current Filetype: ' . l:filetype)
     call s:Echo('Available Linters: ' . string(l:all_names))
     call s:EchoLinterAliases(l:all_linters)
     call s:Echo('  Enabled Linters: ' . string(l:enabled_names))
+    call s:Echo('  Ignored Linters: ' . string(l:ignored_names))
     call s:Echo(' Suggested Fixers: ' . l:fixers_string)
     call s:Echo(' Linter Variables:')
     call s:Echo('')

autoload/ale/definition.vim

@@ -135,10 +135,6 @@ function! s:GoToLSPDefinition(linter, options, capability) abort
 endfunction
 
 function! ale#definition#GoTo(options) abort
-    if !get(g:, 'ale_ignore_2_7_warnings') && has_key(a:options, 'deprecated_command')
-        execute 'echom '':' . a:options.deprecated_command . ' is deprecated. Use `let g:ale_ignore_2_7_warnings = 1` to disable this message.'''
-    endif
-
     for l:linter in ale#linter#Get(&filetype)
         if !empty(l:linter.lsp)
             call s:GoToLSPDefinition(l:linter, a:options, 'definition')
@@ -147,10 +143,6 @@ function! ale#definition#GoTo(options) abort
 endfunction
 
 function! ale#definition#GoToType(options) abort
-    if !get(g:, 'ale_ignore_2_7_warnings') && has_key(a:options, 'deprecated_command')
-        execute 'echom '':' . a:options.deprecated_command . ' is deprecated. Use `let g:ale_ignore_2_7_warnings = 1` to disable this message.'''
-    endif
-
     for l:linter in ale#linter#Get(&filetype)
         if !empty(l:linter.lsp)
             " TODO: handle typeDefinition for tsserver if supported by the

autoload/ale/engine.vim

@@ -4,6 +4,7 @@
 
 " Remapping of linter problems.
 let g:ale_type_map = get(g:, 'ale_type_map', {})
+let g:ale_filename_mappings = get(g:, 'ale_filename_mappings', {})
 
 if !has_key(s:, 'executable_cache_map')
     let s:executable_cache_map = {}
@@ -104,42 +105,6 @@ function! ale#engine#IsCheckingBuffer(buffer) abort
     \   || !empty(get(l:info, 'active_other_sources_list', []))
 endfunction
 
-" Register a temporary file to be managed with the ALE engine for
-" a current job run.
-function! ale#engine#ManageFile(buffer, filename) abort
-    if !get(g:, 'ale_ignore_2_4_warnings')
-        execute 'echom ''ale#engine#ManageFile is deprecated. Use `let g:ale_ignore_2_4_warnings = 1` to disable this message.'''
-    endif
-
-    call ale#command#ManageFile(a:buffer, a:filename)
-endfunction
-
-" Same as the above, but manage an entire directory.
-function! ale#engine#ManageDirectory(buffer, directory) abort
-    if !get(g:, 'ale_ignore_2_4_warnings')
-        execute 'echom ''ale#engine#ManageDirectory is deprecated. Use `let g:ale_ignore_2_4_warnings = 1` to disable this message.'''
-    endif
-
-    call ale#command#ManageDirectory(a:buffer, a:directory)
-endfunction
-
-function! ale#engine#CreateFile(buffer) abort
-    if !get(g:, 'ale_ignore_2_4_warnings')
-        execute 'echom ''ale#engine#CreateFile is deprecated. Use `let g:ale_ignore_2_4_warnings = 1` to disable this message.'''
-    endif
-
-    return ale#command#CreateFile(a:buffer)
-endfunction
-
-" Create a new temporary directory and manage it in one go.
-function! ale#engine#CreateDirectory(buffer) abort
-    if !get(g:, 'ale_ignore_2_4_warnings')
-        execute 'echom ''ale#engine#CreateDirectory is deprecated. Use `let g:ale_ignore_2_4_warnings = 1` to disable this message.'''
-    endif
-
-    return ale#command#CreateDirectory(a:buffer)
-endfunction
-
 function! ale#engine#HandleLoclist(linter_name, buffer, loclist, from_other_source) abort
     let l:info = get(g:ale_buffer_info, a:buffer, {})
 
@@ -192,7 +157,6 @@ function! s:HandleExit(job_info, buffer, output, data) abort
 
     let l:linter = a:job_info.linter
     let l:executable = a:job_info.executable
-    let l:next_chain_index = a:job_info.next_chain_index
 
     " Remove this job from the list.
     call ale#engine#MarkLinterInactive(l:buffer_info, l:linter.name)
@@ -207,20 +171,6 @@ function! s:HandleExit(job_info, buffer, output, data) abort
         call remove(a:output, -1)
     endif
 
-    if l:next_chain_index < len(get(l:linter, 'command_chain', []))
-        let [l:command, l:options] = ale#engine#ProcessChain(
-        \   a:buffer,
-        \   l:executable,
-        \   l:linter,
-        \   l:next_chain_index,
-        \   a:output,
-        \)
-
-        call s:RunJob(l:command, l:options)
-
-        return
-    endif
-
     try
         let l:loclist = ale#util#GetFunction(l:linter.callback)(a:buffer, a:output)
     " Handle the function being unknown, or being deleted.
@@ -307,6 +257,13 @@ function! s:RemapItemTypes(type_map, loclist) abort
 endfunction
 
 function! ale#engine#FixLocList(buffer, linter_name, from_other_source, loclist) abort
+    let l:mappings = ale#GetFilenameMappings(a:buffer, a:linter_name)
+
+    if !empty(l:mappings)
+        " We need to apply reverse filename mapping here.
+        let l:mappings = ale#filename_mapping#Invert(l:mappings)
+    endif
+
     let l:bufnr_map = {}
     let l:new_loclist = []
 
@@ -347,13 +304,19 @@ function! ale#engine#FixLocList(buffer, linter_name, from_other_source, loclist)
             let l:item.code = l:old_item.code
         endif
 
-        if has_key(l:old_item, 'filename')
-        \&& !ale#path#IsTempName(l:old_item.filename)
+        let l:old_name = get(l:old_item, 'filename', '')
+
+        " Map parsed from output to local filesystem files.
+        if !empty(l:old_name) && !empty(l:mappings)
+            let l:old_name = ale#filename_mapping#Map(l:old_name, l:mappings)
+        endif
+
+        if !empty(l:old_name) && !ale#path#IsTempName(l:old_name)
             " Use the filename given.
             " Temporary files are assumed to be for this buffer,
             " and the filename is not included then, because it looks bad
             " in the loclist window.
-            let l:filename = l:old_item.filename
+            let l:filename = l:old_name
             let l:item.filename = l:filename
 
             if has_key(l:old_item, 'bufnr')
@@ -454,20 +417,19 @@ function! s:RunJob(command, options) abort
     let l:buffer = a:options.buffer
     let l:linter = a:options.linter
     let l:output_stream = a:options.output_stream
-    let l:next_chain_index = a:options.next_chain_index
-    let l:read_buffer = a:options.read_buffer
+    let l:read_buffer = a:options.read_buffer && !a:options.lint_file
     let l:info = g:ale_buffer_info[l:buffer]
 
     let l:Callback = function('s:HandleExit', [{
     \   'linter': l:linter,
     \   'executable': l:executable,
-    \   'next_chain_index': l:next_chain_index,
     \}])
     let l:result = ale#command#Run(l:buffer, l:command, l:Callback, {
     \   'output_stream': l:output_stream,
     \   'executable': l:executable,
     \   'read_buffer': l:read_buffer,
-    \   'log_output': l:next_chain_index >= len(get(l:linter, 'command_chain', [])),
+    \   'log_output': 1,
+    \   'filename_mappings': ale#GetFilenameMappings(l:buffer, l:linter.name),
     \})
 
     " Only proceed if the job is being run.
@@ -482,69 +444,7 @@ function! s:RunJob(command, options) abort
     return 1
 endfunction
 
-" Determine which commands to run for a link in a command chain, or
-" just a regular command.
-function! ale#engine#ProcessChain(buffer, executable, linter, chain_index, input) abort
-    let l:output_stream = get(a:linter, 'output_stream', 'stdout')
-    let l:read_buffer = a:linter.read_buffer
-    let l:chain_index = a:chain_index
-    let l:input = a:input
-
-    while l:chain_index < len(a:linter.command_chain)
-        " Run a chain of commands, one asynchronous command after the other,
-        " so that many programs can be run in a sequence.
-        let l:chain_item = a:linter.command_chain[l:chain_index]
-
-        if l:chain_index == 0
-            " The first callback in the chain takes only a buffer number.
-            let l:command = ale#util#GetFunction(l:chain_item.callback)(
-            \   a:buffer
-            \)
-        else
-            " The second callback in the chain takes some input too.
-            let l:command = ale#util#GetFunction(l:chain_item.callback)(
-            \   a:buffer,
-            \   l:input
-            \)
-        endif
-
-        " If we have a command to run, execute that.
-        if !empty(l:command)
-            " The chain item can override the output_stream option.
-            if has_key(l:chain_item, 'output_stream')
-                let l:output_stream = l:chain_item.output_stream
-            endif
-
-            " The chain item can override the read_buffer option.
-            if has_key(l:chain_item, 'read_buffer')
-                let l:read_buffer = l:chain_item.read_buffer
-            elseif l:chain_index != len(a:linter.command_chain) - 1
-                " Don't read the buffer for commands besides the last one
-                " in the chain by default.
-                let l:read_buffer = 0
-            endif
-
-            break
-        endif
-
-        " Command chain items can return an empty string to indicate that
-        " a command should be skipped, so we should try the next item
-        " with no input.
-        let l:input = []
-        let l:chain_index += 1
-    endwhile
-
-    return [l:command, {
-    \   'executable': a:executable,
-    \   'buffer': a:buffer,
-    \   'linter': a:linter,
-    \   'output_stream': l:output_stream,
-    \   'next_chain_index': l:chain_index + 1,
-    \   'read_buffer': l:read_buffer,
-    \}]
-endfunction
-
-function! s:StopCurrentJobs(buffer, clear_lint_file_jobs) abort
+function! s:StopCurrentJobs(buffer, clear_lint_file_jobs, linter_slots) abort
     let l:info = get(g:ale_buffer_info, a:buffer, {})
     call ale#command#StopJobs(a:buffer, 'linter')
 
@@ -553,11 +453,25 @@ function! s:StopCurrentJobs(buffer, clear_lint_file_jobs) abort
         call ale#command#StopJobs(a:buffer, 'file_linter')
         let l:info.active_linter_list = []
     else
+        let l:lint_file_map = {}
+
+        " Use a previously computed map of `lint_file` values to find
+        " linters that are used for linting files.
+        for [l:lint_file, l:linter] in a:linter_slots
+            if l:lint_file is 1
+                let l:lint_file_map[l:linter.name] = 1
+            endif
+        endfor
+
         " Keep jobs for linting files when we're only linting buffers.
-        call filter(l:info.active_linter_list, 'get(v:val, ''lint_file'')')
+        call filter(l:info.active_linter_list, 'get(l:lint_file_map, v:val.name)')
     endif
 endfunction
 
+function! ale#engine#Stop(buffer) abort
+    call s:StopCurrentJobs(a:buffer, 1, [])
+endfunction
+
 function! s:RemoveProblemsForDisabledLinters(buffer, linters) abort
     " Figure out which linters are still enabled, and remove
     " problems for linters which are no longer enabled.
@@ -608,10 +522,15 @@ function! s:AddProblemsFromOtherBuffers(buffer, linters) abort
     endif
 endfunction
 
-function! s:RunIfExecutable(buffer, linter, executable) abort
+function! s:RunIfExecutable(buffer, linter, lint_file, executable) abort
     if ale#command#IsDeferred(a:executable)
         let a:executable.result_callback = {
-        \   executable -> s:RunIfExecutable(a:buffer, a:linter, executable)
+        \   executable -> s:RunIfExecutable(
+        \       a:buffer,
+        \       a:linter,
+        \       a:lint_file,
+        \       executable
+        \   )
         \}
 
         return 1
@@ -619,29 +538,17 @@ function! s:RunIfExecutable(buffer, linter, executable) abort
 
     if ale#engine#IsExecutable(a:buffer, a:executable)
         " Use different job types for file or linter jobs.
-        let l:job_type = a:linter.lint_file ? 'file_linter' : 'linter'
+        let l:job_type = a:lint_file ? 'file_linter' : 'linter'
         call setbufvar(a:buffer, 'ale_job_type', l:job_type)
 
-        if has_key(a:linter, 'command_chain')
-            let [l:command, l:options] = ale#engine#ProcessChain(
-            \   a:buffer,
-            \   a:executable,
-            \   a:linter,
-            \   0,
-            \   []
-            \)
-
-            return s:RunJob(l:command, l:options)
-        endif
-
         let l:command = ale#linter#GetCommand(a:buffer, a:linter)
         let l:options = {
         \   'executable': a:executable,
         \   'buffer': a:buffer,
         \   'linter': a:linter,
         \   'output_stream': get(a:linter, 'output_stream', 'stdout'),
-        \   'next_chain_index': 1,
         \   'read_buffer': a:linter.read_buffer,
+        \   'lint_file': a:lint_file,
         \}
 
         return s:RunJob(l:command, l:options)
@@ -653,22 +560,73 @@ endfunction
 " Run a linter for a buffer.
 "
 " Returns 1 if the linter was successfully run.
-function! s:RunLinter(buffer, linter) abort
+function! s:RunLinter(buffer, linter, lint_file) abort
     if !empty(a:linter.lsp)
         return ale#lsp_linter#CheckWithLSP(a:buffer, a:linter)
     else
         let l:executable = ale#linter#GetExecutable(a:buffer, a:linter)
 
-        return s:RunIfExecutable(a:buffer, a:linter, l:executable)
+        return s:RunIfExecutable(a:buffer, a:linter, a:lint_file, l:executable)
     endif
 
     return 0
 endfunction
 
-function! ale#engine#RunLinters(buffer, linters, should_lint_file) abort
-    " Initialise the buffer information if needed.
-    let l:new_buffer = ale#engine#InitBufferInfo(a:buffer)
-    call s:StopCurrentJobs(a:buffer, a:should_lint_file)
+function! s:GetLintFileSlots(buffer, linters) abort
+    let l:linter_slots = []
+
+    for l:linter in a:linters
+        let l:LintFile = l:linter.lint_file
+
+        if type(l:LintFile) is v:t_func
+            let l:LintFile = l:LintFile(a:buffer)
+        endif
+
+        call add(l:linter_slots, [l:LintFile, l:linter])
+    endfor
+
+    return l:linter_slots
+endfunction
+
+function! s:GetLintFileValues(slots, Callback) abort
+    let l:deferred_list = []
+    let l:new_slots = []
+
+    for [l:lint_file, l:linter] in a:slots
+        while ale#command#IsDeferred(l:lint_file) && has_key(l:lint_file, 'value')
+            " If we've already computed the return value, use it.
+            let l:lint_file = l:lint_file.value
+        endwhile
+
+        if ale#command#IsDeferred(l:lint_file)
+            " If we are going to return the result later, wait for it.
+            call add(l:deferred_list, l:lint_file)
+        else
+            " If we have the value now, coerce it to 0 or 1.
+            let l:lint_file = l:lint_file is 1
+        endif
+
+        call add(l:new_slots, [l:lint_file, l:linter])
+    endfor
+
+    if !empty(l:deferred_list)
+        for l:deferred in l:deferred_list
+            let l:deferred.result_callback =
+            \   {-> s:GetLintFileValues(l:new_slots, a:Callback)}
+        endfor
+    else
+        call a:Callback(l:new_slots)
+    endif
+endfunction
+
+function! s:RunLinters(
+\   buffer,
+\   linters,
+\   slots,
+\   should_lint_file,
+\   new_buffer,
+\) abort
+    call s:StopCurrentJobs(a:buffer, a:should_lint_file, a:slots)
     call s:RemoveProblemsForDisabledLinters(a:buffer, a:linters)
 
     " We can only clear the results if we aren't checking the buffer.
@@ -676,10 +634,10 @@ function! ale#engine#RunLinters(buffer, linters, should_lint_file) abort
 
     silent doautocmd <nomodeline> User ALELintPre
 
-    for l:linter in a:linters
+    for [l:lint_file, l:linter] in a:slots
         " Only run lint_file linters if we should.
-        if !l:linter.lint_file || a:should_lint_file
-            if s:RunLinter(a:buffer, l:linter)
+        if !l:lint_file || a:should_lint_file
+            if s:RunLinter(a:buffer, l:linter, l:lint_file)
                 " If a single linter ran, we shouldn't clear everything.
                 let l:can_clear_results = 0
             endif
@@ -694,11 +652,32 @@ function! ale#engine#RunLinters(buffer, linters, should_lint_file) abort
     " disabled, or ALE itself is disabled.
     if l:can_clear_results
         call ale#engine#SetResults(a:buffer, [])
-    elseif l:new_buffer
-        call s:AddProblemsFromOtherBuffers(a:buffer, a:linters)
+    elseif a:new_buffer
+        call s:AddProblemsFromOtherBuffers(
+        \   a:buffer,
+        \   map(copy(a:slots), 'v:val[1]')
+        \)
     endif
 endfunction
 
+function! ale#engine#RunLinters(buffer, linters, should_lint_file) abort
+    " Initialise the buffer information if needed.
+    let l:new_buffer = ale#engine#InitBufferInfo(a:buffer)
+
+    call s:GetLintFileValues(
+    \   s:GetLintFileSlots(a:buffer, a:linters),
+    \   {
+    \       slots -> s:RunLinters(
+    \           a:buffer,
+    \           a:linters,
+    \           slots,
+    \           a:should_lint_file,
+    \           l:new_buffer,
+    \       )
+    \   }
+    \)
+endfunction
+
 " Clean up a buffer.
 "
 " This function will stop all current jobs for the buffer,

autoload/ale/events.vim

@@ -105,11 +105,11 @@ function! ale#events#Init() abort
 
         if g:ale_enabled
             if l:text_changed is? 'always' || l:text_changed is# '1'
-                autocmd TextChanged,TextChangedI * call ale#Queue(g:ale_lint_delay)
+                autocmd TextChanged,TextChangedI * call ale#Queue(ale#Var(str2nr(expand('<abuf>')), 'lint_delay'))
             elseif l:text_changed is? 'normal'
-                autocmd TextChanged * call ale#Queue(g:ale_lint_delay)
+                autocmd TextChanged * call ale#Queue(ale#Var(str2nr(expand('<abuf>')), 'lint_delay'))
             elseif l:text_changed is? 'insert'
-                autocmd TextChangedI * call ale#Queue(g:ale_lint_delay)
+                autocmd TextChangedI * call ale#Queue(ale#Var(str2nr(expand('<abuf>')), 'lint_delay'))
             endif
 
             if g:ale_lint_on_enter
@@ -147,6 +147,10 @@ function! ale#events#Init() abort
                 autocmd InsertLeave * if exists('*ale#engine#Cleanup') | call ale#virtualtext#ShowCursorWarning() | endif
             endif
 
+            if g:ale_hover_cursor
+                autocmd CursorHold * if exists('*ale#lsp#Send') | call ale#hover#ShowTruncatedMessageAtCursor() | endif
+            endif
+
             if g:ale_close_preview_on_insert
                 autocmd InsertEnter * if exists('*ale#preview#CloseIfTypeMatches') | call ale#preview#CloseIfTypeMatches('ale-preview') | endif
             endif

autoload/ale/filename_mapping.vim

@@ -0,0 +1,22 @@
+" Author: w0rp <devw0rp@gmail.com>
+" Description: Logic for handling mappings between files
+
+" Invert filesystem mappings so they can be mapped in reverse.
+function! ale#filename_mapping#Invert(filename_mappings) abort
+    return map(copy(a:filename_mappings), '[v:val[1], v:val[0]]')
+endfunction
+
+" Given a filename and some filename_mappings, map a filename.
+function! ale#filename_mapping#Map(filename, filename_mappings) abort
+    let l:simplified_filename = ale#path#Simplify(a:filename)
+
+    for [l:mapping_from, l:mapping_to] in a:filename_mappings
+        let l:mapping_from = ale#path#Simplify(l:mapping_from)
+
+        if l:simplified_filename[:len(l:mapping_from) - 1] is# l:mapping_from
+            return l:mapping_to . l:simplified_filename[len(l:mapping_from):]
+        endif
+    endfor
+
+    return a:filename
+endfunction

autoload/ale/fix.vim

@@ -1,4 +1,8 @@
-call ale#Set('fix_on_save_ignore', {})
+" Author: w0rp <devw0rp@gmail.com>
+" Description: Functions for fixing code with programs, or other means.
+
+let g:ale_fix_on_save_ignore = get(g:, 'ale_fix_on_save_ignore', {})
+let g:ale_filename_mappings = get(g:, 'ale_filename_mappings', {})
 
 " Apply fixes queued up for buffers which may be hidden.
 " Vim doesn't let you modify hidden buffers.
@@ -11,22 +15,29 @@ function! ale#fix#ApplyQueuedFixes(buffer) abort
 
     call remove(g:ale_fix_buffer_data, a:buffer)
 
-    if l:data.changes_made
-        let l:new_lines = ale#util#SetBufferContents(a:buffer, l:data.output)
+    try
+        if l:data.changes_made
+            let l:new_lines = ale#util#SetBufferContents(a:buffer, l:data.output)
 
-        if l:data.should_save
-            if a:buffer is bufnr('')
-                if empty(&buftype)
-                    noautocmd :w!
+            if l:data.should_save
+                if a:buffer is bufnr('')
+                    if empty(&buftype)
+                        noautocmd :w!
+                    else
+                        set nomodified
+                    endif
                 else
-                    set nomodified
+                    call writefile(l:new_lines, expand('#' . a:buffer . ':p')) " no-custom-checks
+                    call setbufvar(a:buffer, '&modified', 0)
                 endif
-            else
-                call writefile(l:new_lines, expand('#' . a:buffer . ':p')) " no-custom-checks
-                call setbufvar(a:buffer, '&modified', 0)
             endif
         endif
-    endif
+    catch /E21/
+        " If we cannot modify the buffer now, try again later.
+        let g:ale_fix_buffer_data[a:buffer] = l:data
+
+        return
+    endtry
 
     if l:data.should_save
         let l:should_lint = ale#Var(a:buffer, 'fix_on_save')
@@ -64,7 +75,10 @@ function! ale#fix#ApplyFixes(buffer, output) abort
 
         if l:data.lines_before != l:lines
             call remove(g:ale_fix_buffer_data, a:buffer)
-            execute 'echoerr ''The file was changed before fixing finished'''
+
+            if !l:data.ignore_file_changed_errors
+                execute 'echoerr ''The file was changed before fixing finished'''
+            endif
 
             return
         endif
@@ -90,7 +104,6 @@ function! s:HandleExit(job_info, buffer, job_output, data) abort
         let l:output = a:job_output
     endif
 
-    let l:ChainCallback = get(a:job_info, 'chain_with', v:null)
     let l:ProcessWith = get(a:job_info, 'process_with', v:null)
 
     " Post-process the output with a function if we have one.
@@ -102,27 +115,17 @@ function! s:HandleExit(job_info, buffer, job_output, data) abort
     " otherwise skip this job and use the input from before.
     "
     " We'll use the input from before for chained commands.
-    if l:ChainCallback is v:null && !empty(split(join(l:output)))
+    if !empty(split(join(l:output)))
         let l:input = l:output
     else
         let l:input = a:job_info.input
     endif
 
-    if l:ChainCallback isnot v:null && !get(g:, 'ale_ignore_2_4_warnings')
-        execute 'echom ''chain_with is deprecated. Use `let g:ale_ignore_2_4_warnings = 1` to disable this message.'''
-    endif
-
-    let l:next_index = l:ChainCallback is v:null
-    \   ? a:job_info.callback_index + 1
-    \   : a:job_info.callback_index
-
     call s:RunFixer({
     \   'buffer': a:buffer,
     \   'input': l:input,
-    \   'output': l:output,
     \   'callback_list': a:job_info.callback_list,
-    \   'callback_index': l:next_index,
-    \   'chain_callback': l:ChainCallback,
+    \   'callback_index': a:job_info.callback_index + 1,
     \})
 endfunction
 
@@ -135,6 +138,7 @@ function! s:RunJob(result, options) abort
 
     let l:buffer = a:options.buffer
     let l:input = a:options.input
+    let l:fixer_name = a:options.fixer_name
 
     if a:result is 0 || type(a:result) is v:t_list
         if type(a:result) is v:t_list
@@ -152,26 +156,21 @@ function! s:RunJob(result, options) abort
     endif
 
     let l:command = get(a:result, 'command', '')
-    let l:ChainWith = get(a:result, 'chain_with', v:null)
 
     if empty(l:command)
-        " If the command is empty, skip to the next item, or call the
-        " chain_with function.
+        " If the command is empty, skip to the next item.
         call s:RunFixer({
         \   'buffer': l:buffer,
         \   'input': l:input,
-        \   'callback_index': a:options.callback_index + (l:ChainWith is v:null),
+        \   'callback_index': a:options.callback_index,
         \   'callback_list': a:options.callback_list,
-        \   'chain_callback': l:ChainWith,
-        \   'output': [],
         \})
 
         return
     endif
 
     let l:read_temporary_file = get(a:result, 'read_temporary_file', 0)
-    " Default to piping the buffer for the last fixer in the chain.
-    let l:read_buffer = get(a:result, 'read_buffer', l:ChainWith is v:null)
+    let l:read_buffer = get(a:result, 'read_buffer', 1)
     let l:output_stream = get(a:result, 'output_stream', 'stdout')
 
     if l:read_temporary_file
@@ -180,7 +179,6 @@ function! s:RunJob(result, options) abort
 
     let l:Callback = function('s:HandleExit', [{
     \   'input': l:input,
-    \   'chain_with': l:ChainWith,
     \   'callback_index': a:options.callback_index,
     \   'callback_list': a:options.callback_list,
     \   'process_with': get(a:result, 'process_with', v:null),
@@ -192,6 +190,7 @@ function! s:RunJob(result, options) abort
     \   'read_buffer': l:read_buffer,
     \   'input': l:input,
     \   'log_output': 0,
+    \   'filename_mappings': ale#GetFilenameMappings(l:buffer, l:fixer_name),
     \})
 
     if empty(l:run_result)
@@ -215,32 +214,22 @@ function! s:RunFixer(options) abort
         return
     endif
 
-    let l:ChainCallback = get(a:options, 'chain_callback', v:null)
-
-    let l:Function = l:ChainCallback isnot v:null
-    \   ? ale#util#GetFunction(l:ChainCallback)
-    \   : a:options.callback_list[l:index]
+    let [l:fixer_name, l:Function] = a:options.callback_list[l:index]
 
     " Record new jobs started as fixer jobs.
     call setbufvar(l:buffer, 'ale_job_type', 'fixer')
 
-    if l:ChainCallback isnot v:null
-        " Chained commands accept (buffer, output, [input])
-        let l:result = ale#util#FunctionArgCount(l:Function) == 2
-        \   ? call(l:Function, [l:buffer, a:options.output])
-        \   : call(l:Function, [l:buffer, a:options.output, copy(l:input)])
-    else
-        " Regular fixer commands accept (buffer, [input])
-        let l:result = ale#util#FunctionArgCount(l:Function) == 1
-        \   ? call(l:Function, [l:buffer])
-        \   : call(l:Function, [l:buffer, copy(l:input)])
-    endif
+    " Regular fixer commands accept (buffer, [input])
+    let l:result = ale#util#FunctionArgCount(l:Function) == 1
+    \   ? call(l:Function, [l:buffer])
+    \   : call(l:Function, [l:buffer, copy(l:input)])
 
     call s:RunJob(l:result, {
     \   'buffer': l:buffer,
     \   'input': l:input,
     \   'callback_list': a:options.callback_list,
     \   'callback_index': l:index,
+    \   'fixer_name': l:fixer_name,
     \})
 endfunction
 
@@ -308,16 +297,24 @@ function! s:GetCallbacks(buffer, fixing_flag, fixers) abort
     " Variables with capital characters are needed, or Vim will complain about
     " funcref variables.
     for l:Item in l:callback_list
+        " Try to capture the names of registered fixer names, so we can use
+        " them for filename mapping or other purposes later.
+        let l:fixer_name = v:null
+
         if type(l:Item) is v:t_string
             let l:Func = ale#fix#registry#GetFunc(l:Item)
 
             if !empty(l:Func)
+                let l:fixer_name = l:Item
                 let l:Item = l:Func
             endif
         endif
 
         try
-            call add(l:corrected_list, ale#util#GetFunction(l:Item))
+            call add(l:corrected_list, [
+            \   l:fixer_name,
+            \   ale#util#GetFunction(l:Item)
+            \])
         catch /E475/
             " Rethrow exceptions for failing to get a function so we can print
             " a friendly message about it.
@@ -335,6 +332,7 @@ function! ale#fix#InitBufferData(buffer, fixing_flag) abort
     \   'lines_before': getbufline(a:buffer, 1, '$'),
     \   'done': 0,
     \   'should_save': a:fixing_flag is# 'save_file',
+    \   'ignore_file_changed_errors': a:fixing_flag is# '!',
     \   'temporary_directory_list': [],
     \}
 endfunction
@@ -343,19 +341,23 @@ endfunction
 "
 " Returns 0 if no fixes can be applied, and 1 if fixing can be done.
 function! ale#fix#Fix(buffer, fixing_flag, ...) abort
-    if a:fixing_flag isnot# '' && a:fixing_flag isnot# 'save_file'
-        throw "fixing_flag must be either '' or 'save_file'"
+    if a:fixing_flag isnot# ''
+    \&& a:fixing_flag isnot# '!'
+    \&& a:fixing_flag isnot# 'save_file'
+        throw "fixing_flag must be '', '!', or 'save_file'"
     endif
 
     try
         let l:callback_list = s:GetCallbacks(a:buffer, a:fixing_flag, a:000)
     catch /E700\|BADNAME/
-        let l:function_name = join(split(split(v:exception, ':')[3]))
-        let l:echo_message = printf(
-        \   'There is no fixer named `%s`. Check :ALEFixSuggest',
-        \   l:function_name,
-        \)
-        execute 'echom l:echo_message'
+        if a:fixing_flag isnot# '!'
+            let l:function_name = join(split(split(v:exception, ':')[3]))
+            let l:echo_message = printf(
+            \   'There is no fixer named `%s`. Check :ALEFixSuggest',
+            \   l:function_name,
+            \)
+            execute 'echom l:echo_message'
+        endif
 
         return 0
     endtry
@@ -389,3 +391,4 @@ endfunction
 augroup ALEBufferFixGroup
     autocmd!
     autocmd BufEnter * call ale#fix#ApplyQueuedFixes(str2nr(expand('<abuf>')))
+augroup END

autoload/ale/fix/registry.vim

@@ -160,6 +160,11 @@ let s:default_registry = {
 \       'suggested_filetypes': ['php'],
 \       'description': 'Fix PHP files with php-cs-fixer.',
 \   },
+\   'astyle': {
+\       'function': 'ale#fixers#astyle#Fix',
+\       'suggested_filetypes': ['c', 'cpp'],
+\       'description': 'Fix C/C++ with astyle.',
+\   },
 \   'clangtidy': {
 \       'function': 'ale#fixers#clangtidy#Fix',
 \       'suggested_filetypes': ['c', 'cpp', 'objc'],
@@ -360,11 +365,21 @@ let s:default_registry = {
 \       'suggested_filetypes': ['nix'],
 \       'description': 'A formatter for Nix code',
 \   },
+\   'remark-lint': {
+\       'function': 'ale#fixers#remark_lint#Fix',
+\       'suggested_filetypes': ['markdown'],
+\       'description': 'Fix markdown files with remark-lint',
+\   },
 \   'html-beautify': {
 \       'function': 'ale#fixers#html_beautify#Fix',
 \       'suggested_filetypes': ['html', 'htmldjango'],
 \       'description': 'Fix HTML files with html-beautify.',
 \   },
+\   'dhall': {
+\       'function': 'ale#fixers#dhall#Fix',
+\       'suggested_filetypes': ['dhall'],
+\       'description': 'Fix Dhall files with dhall-format.',
+\   },
 \}
 
 " Reset the function registry to the default entries.

autoload/ale/fixers/astyle.vim

@@ -0,0 +1,59 @@
+" Author: James Kim <jhlink@users.noreply.github.com>
+" Description: Fix C/C++ files with astyle.
+
+function! s:set_variables() abort
+    for l:ft in ['c', 'cpp']
+        call ale#Set(l:ft . '_astyle_executable', 'astyle')
+        call ale#Set(l:ft . '_astyle_project_options', '')
+    endfor
+endfunction
+
+call s:set_variables()
+
+
+function! ale#fixers#astyle#Var(buffer, name) abort
+    let l:ft = getbufvar(str2nr(a:buffer), '&filetype')
+    let l:ft = l:ft =~# 'cpp' ? 'cpp' : 'c'
+
+    return ale#Var(a:buffer, l:ft . '_astyle_' . a:name)
+endfunction
+
+" Try to find a project options file.
+function! ale#fixers#astyle#FindProjectOptions(buffer) abort
+    let l:proj_options = ale#fixers#astyle#Var(a:buffer, 'project_options')
+
+    " If user has set project options variable then use it and skip any searching.
+    " This would allow users to use project files named differently than .astylerc.
+    if !empty(l:proj_options)
+        return l:proj_options
+    endif
+
+    " Try to find nearest .astylerc file.
+    let l:proj_options = fnamemodify(ale#path#FindNearestFile(a:buffer, '.astylerc'), ':t')
+
+    if !empty(l:proj_options)
+        return l:proj_options
+    endif
+
+    " Try to find nearest _astylerc file.
+    let l:proj_options = fnamemodify(ale#path#FindNearestFile(a:buffer, '_astylerc'), ':t')
+
+    if !empty(l:proj_options)
+        return l:proj_options
+    endif
+
+    " If no project options file is found return an empty string.
+    return ''
+endfunction
+
+function! ale#fixers#astyle#Fix(buffer) abort
+    let l:executable = ale#fixers#astyle#Var(a:buffer, 'executable')
+    let l:proj_options = ale#fixers#astyle#FindProjectOptions(a:buffer)
+    let l:command = ' --stdin=' . ale#Escape(expand('#' . a:buffer))
+
+    return {
+    \   'command': ale#Escape(l:executable)
+    \     . (empty(l:proj_options) ? '' : ' --project=' . l:proj_options)
+    \     . l:command
+    \}
+endfunction

autoload/ale/fixers/dhall.vim

@@ -0,0 +1,23 @@
+" Author: Pat Brisbin <pbrisbin@gmail.com>
+" Description: Integration of dhall-format with ALE.
+
+call ale#Set('dhall_format_executable', 'dhall')
+
+function! ale#fixers#dhall#GetExecutable(buffer) abort
+    let l:executable = ale#Var(a:buffer, 'dhall_format_executable')
+
+    " Dhall is written in Haskell and commonly installed with Stack
+    return ale#handlers#haskell_stack#EscapeExecutable(l:executable, 'dhall')
+endfunction
+
+function! ale#fixers#dhall#Fix(buffer) abort
+    let l:executable = ale#fixers#dhall#GetExecutable(a:buffer)
+
+    return {
+    \   'command': l:executable
+    \       . ' format'
+    \       . ' --inplace'
+    \       . ' %t',
+    \   'read_temporary_file': 1,
+    \}
+endfunction

autoload/ale/fixers/ktlint.vim

@@ -3,7 +3,6 @@
 
 function! ale#fixers#ktlint#Fix(buffer) abort
     return {
-    \   'command': ale#handlers#ktlint#GetCommand(a:buffer) . ' --format',
-    \   'read_temporary_file': 1,
+    \   'command': ale#handlers#ktlint#GetCommand(a:buffer) . ' --format'
     \}
 endfunction

autoload/ale/fixers/latexindent.vim

@@ -10,9 +10,7 @@ function! ale#fixers#latexindent#Fix(buffer) abort
 
     return {
     \   'command': ale#Escape(l:executable)
-    \       . ' -l -w'
+    \       . ' -l'
     \       . (empty(l:options) ? '' : ' ' . l:options)
-    \       . ' %t',
-    \   'read_temporary_file': 1,
     \}
 endfunction

autoload/ale/fixers/ocamlformat.vim

@@ -5,14 +5,13 @@ call ale#Set('ocaml_ocamlformat_executable', 'ocamlformat')
 call ale#Set('ocaml_ocamlformat_options', '')
 
 function! ale#fixers#ocamlformat#Fix(buffer) abort
-    let l:filename = expand('#' . a:buffer . ':p')
     let l:executable = ale#Var(a:buffer, 'ocaml_ocamlformat_executable')
     let l:options = ale#Var(a:buffer, 'ocaml_ocamlformat_options')
 
     return {
     \   'command': ale#Escape(l:executable)
     \       . (empty(l:options) ? '' : ' ' . l:options)
-    \       . ' --name=' . ale#Escape(l:filename)
+    \       . ' --name=%s'
     \       . ' -'
     \}
 endfunction

autoload/ale/fixers/prettier.vim

@@ -34,6 +34,21 @@ function! ale#fixers#prettier#ProcessPrettierDOutput(buffer, output) abort
     return a:output
 endfunction
 
+function! ale#fixers#prettier#GetProjectRoot(buffer) abort
+    let l:config = ale#path#FindNearestFile(a:buffer, '.prettierignore')
+
+    if !empty(l:config)
+        return fnamemodify(l:config, ':h')
+    endif
+
+    " Fall back to the directory of the buffer
+    return fnamemodify(bufname(a:buffer), ':p:h')
+endfunction
+
+function! ale#fixers#prettier#CdProjectRoot(buffer) abort
+    return ale#path#CdString(ale#fixers#prettier#GetProjectRoot(a:buffer))
+endfunction
+
 function! ale#fixers#prettier#ApplyFixForVersion(buffer, version) abort
     let l:executable = ale#fixers#prettier#GetExecutable(a:buffer)
     let l:options = ale#Var(a:buffer, 'javascript_prettier_options')
@@ -97,7 +112,7 @@ function! ale#fixers#prettier#ApplyFixForVersion(buffer, version) abort
     " 1.4.0 is the first version with --stdin-filepath
     if ale#semver#GTE(a:version, [1, 4, 0])
         return {
-        \   'command': ale#path#BufferCdString(a:buffer)
+        \   'command': ale#fixers#prettier#CdProjectRoot(a:buffer)
         \       . ale#Escape(l:executable)
         \       . (!empty(l:options) ? ' ' . l:options : '')
         \       . ' --stdin-filepath %s --stdin',

autoload/ale/fixers/prettier_standard.vim

@@ -17,8 +17,8 @@ function! ale#fixers#prettier_standard#Fix(buffer) abort
 
     return {
     \   'command': ale#Escape(ale#fixers#prettier_standard#GetExecutable(a:buffer))
-    \       . ' %t'
+    \       . ' --stdin'
+    \       . ' --stdin-filepath=%s'
     \       . ' ' . l:options,
-    \   'read_temporary_file': 1,
     \}
 endfunction

autoload/ale/fixers/remark_lint.vim

@@ -0,0 +1,24 @@
+" Author: blyoa <blyoa110@gmail.com>
+" Description: Fixing files with remark-lint.
+
+call ale#Set('markdown_remark_lint_executable', 'remark')
+call ale#Set('markdown_remark_lint_use_global', get(g:, 'ale_use_global_executables', 0))
+call ale#Set('markdown_remark_lint_options', '')
+
+function! ale#fixers#remark_lint#GetExecutable(buffer) abort
+    return ale#node#FindExecutable(a:buffer, 'markdown_remark_lint', [
+    \   'node_modules/remark-cli/cli.js',
+    \   'node_modules/.bin/remark',
+    \])
+endfunction
+
+function! ale#fixers#remark_lint#Fix(buffer) abort
+    let l:executable = ale#fixers#remark_lint#GetExecutable(a:buffer)
+    let l:options = ale#Var(a:buffer, 'markdown_remark_lint_options')
+
+    return {
+    \   'command': ale#Escape(l:executable)
+    \       . (!empty(l:options) ? ' ' . l:options : ''),
+    \}
+endfunction
+

autoload/ale/fixers/rubocop.vim

@@ -1,20 +1,40 @@
 call ale#Set('ruby_rubocop_options', '')
+call ale#Set('ruby_rubocop_auto_correct_all', 0)
 call ale#Set('ruby_rubocop_executable', 'rubocop')
 
+" Rubocop fixer outputs diagnostics first and then the fixed
+" output. These are delimited by a "=======" string that we
+" look for to remove everything before it.
+function! ale#fixers#rubocop#PostProcess(buffer, output) abort
+    let l:line = 0
+
+    for l:output in a:output
+        let l:line = l:line + 1
+
+        if l:output =~# "^=\\+$"
+            break
+        endif
+    endfor
+
+    return a:output[l:line :]
+endfunction
+
 function! ale#fixers#rubocop#GetCommand(buffer) abort
     let l:executable = ale#Var(a:buffer, 'ruby_rubocop_executable')
     let l:config = ale#path#FindNearestFile(a:buffer, '.rubocop.yml')
     let l:options = ale#Var(a:buffer, 'ruby_rubocop_options')
+    let l:auto_correct_all = ale#Var(a:buffer, 'ruby_rubocop_auto_correct_all')
 
     return ale#ruby#EscapeExecutable(l:executable, 'rubocop')
     \   . (!empty(l:config) ? ' --config ' . ale#Escape(l:config) : '')
     \   . (!empty(l:options) ? ' ' . l:options : '')
-    \   . ' --auto-correct --force-exclusion %t'
+    \   . (l:auto_correct_all ? ' --auto-correct-all' : ' --auto-correct')
+    \   . ' --force-exclusion --stdin %s'
 endfunction
 
 function! ale#fixers#rubocop#Fix(buffer) abort
     return {
     \   'command': ale#fixers#rubocop#GetCommand(a:buffer),
-    \   'read_temporary_file': 1,
+    \   'process_with': 'ale#fixers#rubocop#PostProcess'
     \}
 endfunction

autoload/ale/fixers/standard.vim

@@ -27,7 +27,7 @@ function! ale#fixers#standard#Fix(buffer) abort
     return {
     \   'command': ale#node#Executable(a:buffer, l:executable)
     \   . (!empty(l:options) ? ' ' . l:options : '')
-    \       . ' --fix %t',
+    \       . ' --fix --stdin < %s > %t',
     \   'read_temporary_file': 1,
     \}
 endfunction

autoload/ale/fixers/tslint.vim

@@ -16,7 +16,7 @@ function! ale#fixers#tslint#Fix(buffer) abort
     return {
     \   'command': ale#node#Executable(a:buffer, l:executable)
     \       . l:tslint_config_option
-    \       . ' --fix %t',
+    \       . ' --outputAbsolutePaths --fix %t',
     \   'read_temporary_file': 1,
     \}
 endfunction

autoload/ale/handlers/ccls.vim

@@ -17,3 +17,10 @@ function! ale#handlers#ccls#GetProjectRoot(buffer) abort
     " Fall back on default project root detection.
     return ale#c#FindProjectRoot(a:buffer)
 endfunction
+
+function! ale#handlers#ccls#GetInitOpts(buffer, init_options_var) abort
+    let l:build_dir = ale#c#GetBuildDirectory(a:buffer)
+    let l:init_options = empty(l:build_dir) ? {} : {'compilationDatabaseDirectory': l:build_dir}
+
+    return extend(l:init_options, ale#Var(a:buffer, a:init_options_var))
+endfunction

autoload/ale/handlers/cppcheck.vim

@@ -44,16 +44,21 @@ endfunction
 function! ale#handlers#cppcheck#HandleCppCheckFormat(buffer, lines) abort
     " Look for lines like the following.
     "
-    " [test.cpp:5]: (error) Array 'a[10]' accessed at index 10, which is out of bounds
-    let l:pattern = '\v^\[(.+):(\d+)\]: \(([a-z]+)\) (.+)$'
+    "test.cpp:974:6: error: Array 'n[3]' accessed at index 3, which is out of bounds. [arrayIndexOutOfBounds]\
+    "    n[3]=3;
+    "     ^
+    let l:pattern = '\v^(\f+):(\d+):(\d+): (\w+): (.*) \[(\w+)\]\'
     let l:output = []
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
         if ale#path#IsBufferPath(a:buffer, l:match[1])
             call add(l:output, {
-            \   'lnum': str2nr(l:match[2]),
-            \   'type': l:match[3] is# 'error' ? 'E' : 'W',
-            \   'text': l:match[4],
+            \   'lnum':     str2nr(l:match[2]),
+            \   'col':      str2nr(l:match[3]),
+            \   'type':     l:match[4] is# 'error' ? 'E' : 'W',
+            \   'sub_type': l:match[4] is# 'style' ? 'style' : '',
+            \   'text':     l:match[5],
+            \   'code':     l:match[6]
             \})
         endif
     endfor

autoload/ale/handlers/gcc.vim

@@ -10,7 +10,7 @@ let s:pragma_error = '#pragma once in main file'
 " <stdin>:8:5: warning: conversion lacks type at end of format [-Wformat=]
 " <stdin>:10:27: error: invalid operands to binary - (have ‘int’ and ‘char *’)
 " -:189:7: note: $/${} is unnecessary on arithmetic variables. [SC2004]
-let s:pattern = '\v^([a-zA-Z]?:?[^:]+):(\d+):(\d+)?:? ([^:]+): (.+)$'
+let s:pattern = '\v^([a-zA-Z]?:?[^:]+):(\d+)?:?(\d+)?:? ([^:]+): (.+)$'
 let s:inline_pattern = '\v inlined from .* at \<stdin\>:(\d+):(\d+):$'
 
 function! s:IsHeaderFile(filename) abort
@@ -117,6 +117,23 @@ function! ale#handlers#gcc#HandleGCCFormat(buffer, lines) abort
             if !empty(l:output)
                 if !has_key(l:output[-1], 'detail')
                     let l:output[-1].detail = l:output[-1].text
+
+                    " handle macro expansion errors/notes
+                    if l:match[5] =~? '^in expansion of macro ‘\w*\w’$'
+                        " if the macro expansion is in the file we're in, add
+                        " the lnum and col keys to the previous error
+                        if l:match[1] is# '<stdin>'
+                        \ && !has_key(l:output[-1], 'col')
+                            let l:output[-1].lnum = str2nr(l:match[2])
+                            let l:output[-1].col = str2nr(l:match[3])
+                        else
+                            " the error is not in the current file, and since
+                            " macro expansion errors don't show the full path to
+                            " the error from the current file, we have to just
+                            " give out a generic error message
+                            let l:output[-1].text = 'Error found in macro expansion. See :ALEDetail'
+                        endif
+                    endif
                 endif
 
                 let l:output[-1].detail = l:output[-1].detail . "\n"

autoload/ale/handlers/go.vim

@@ -6,9 +6,12 @@
 "
 " Author: Ben Paxton <ben@gn32.uk>
 " Description: moved to generic Golang file from govet
+"
+" Author: mostfunkyduck <mostfunkyduck@protonmail.com>
+" Description: updated to work with go 1.14
 
 function! ale#handlers#go#Handler(buffer, lines) abort
-    let l:pattern = '\v^([a-zA-Z]?:?[^:]+):(\d+):?(\d+)?:? ?(.+)$'
+    let l:pattern = '\v^%(vet: )?([a-zA-Z]?:?[^:]+):(\d+):?(\d+)?:? ?(.+)$'
     let l:output = []
     let l:dir = expand('#' . a:buffer . ':p:h')
 

autoload/ale/handlers/hdl_checker.vim

@@ -0,0 +1,71 @@
+" Author:      suoto <andre820@gmail.com>
+" Description: Adds support for HDL Code Checker, which wraps vcom/vlog, ghdl
+"              or xvhdl. More info on https://github.com/suoto/hdl_checker
+
+call ale#Set('hdl_checker_executable', 'hdl_checker')
+call ale#Set('hdl_checker_config_file', has('unix') ? '.hdl_checker.config' : '_hdl_checker.config')
+call ale#Set('hdl_checker_options', '')
+
+" Use this as a function so we can mock it on testing. Need to do this because
+" test files are inside /testplugin (which refers to the ale repo), which will
+" always have a .git folder
+function! ale#handlers#hdl_checker#IsDotGit(path) abort
+    return ! empty(a:path) && isdirectory(a:path)
+endfunction
+
+" Sould return (in order of preference)
+" 1. Nearest config file
+" 2. Nearest .git directory
+" 3. The current path
+function! ale#handlers#hdl_checker#GetProjectRoot(buffer) abort
+    let l:project_root = ale#path#FindNearestFile(
+    \   a:buffer,
+    \   ale#Var(a:buffer, 'hdl_checker_config_file'))
+
+    if !empty(l:project_root)
+        return fnamemodify(l:project_root, ':h')
+    endif
+
+    " Search for .git to use as root
+    let l:project_root = ale#path#FindNearestDirectory(a:buffer, '.git')
+
+    if ale#handlers#hdl_checker#IsDotGit(l:project_root)
+        return fnamemodify(l:project_root, ':h:h')
+    endif
+endfunction
+
+function! ale#handlers#hdl_checker#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'hdl_checker_executable')
+endfunction
+
+function! ale#handlers#hdl_checker#GetCommand(buffer) abort
+    let l:command = ale#Escape(ale#handlers#hdl_checker#GetExecutable(a:buffer)) . ' --lsp'
+
+    " Add extra parameters only if config has been set
+    let l:options = ale#Var(a:buffer, 'hdl_checker_options')
+
+    if ! empty(l:options)
+        let l:command = l:command . ' ' . l:options
+    endif
+
+    return l:command
+endfunction
+
+" To allow testing
+function! ale#handlers#hdl_checker#GetInitOptions(buffer) abort
+    return {'project_file': ale#Var(a:buffer, 'hdl_checker_config_file')}
+endfunction
+
+" Define the hdl_checker linter for a given filetype.
+function! ale#handlers#hdl_checker#DefineLinter(filetype) abort
+    call ale#linter#Define(a:filetype, {
+    \   'name': 'hdl-checker',
+    \   'lsp': 'stdio',
+    \   'language': a:filetype,
+    \   'executable': function('ale#handlers#hdl_checker#GetExecutable'),
+    \   'command': function('ale#handlers#hdl_checker#GetCommand'),
+    \   'project_root': function('ale#handlers#hdl_checker#GetProjectRoot'),
+    \   'initialization_options': function('ale#handlers#hdl_checker#GetInitOptions'),
+    \ })
+endfunction
+

autoload/ale/handlers/ktlint.vim

@@ -13,7 +13,7 @@ function! ale#handlers#ktlint#GetCommand(buffer) abort
     return ale#Escape(l:executable)
     \   . (empty(l:options) ? '' : ' ' . l:options)
     \   . (empty(l:rulesets) ? '' : ' ' . l:rulesets)
-    \   . ' %t'
+    \   . ' --stdin'
 endfunction
 
 function! ale#handlers#ktlint#GetRulesets(buffer) abort

autoload/ale/handlers/markdownlint.vim

@@ -2,15 +2,22 @@
 " Description: Adds support for markdownlint
 
 function! ale#handlers#markdownlint#Handle(buffer, lines) abort
-    let l:pattern=': \(\d*\): \(MD\d\{3}\)\(\/\)\([A-Za-z0-9-]\+\)\(.*\)$'
+    let l:pattern=': \?\(\d\+\)\(:\(\d\+\)\?\)\? \(MD\d\{3}/[A-Za-z0-9-/]\+\) \(.*\)$'
     let l:output=[]
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
-        call add(l:output, {
+        let l:result = ({
         \ 'lnum': l:match[1] + 0,
-        \ 'text': '(' . l:match[2] . l:match[3] . l:match[4] . ')' . l:match[5],
+        \ 'code': l:match[4],
+        \ 'text': l:match[5],
         \ 'type': 'W',
         \})
+
+        if len(l:match[3]) > 0
+            let l:result.col = (l:match[3] + 0)
+        endif
+
+        call add(l:output, l:result)
     endfor
 
     return l:output

autoload/ale/handlers/sh.vim

@@ -4,17 +4,24 @@
 function! ale#handlers#sh#GetShellType(buffer) abort
     let l:bang_line = get(getbufline(a:buffer, 1), 0, '')
 
+    let l:command = ''
+
     " Take the shell executable from the hashbang, if we can.
     if l:bang_line[:1] is# '#!'
         " Remove options like -e, etc.
         let l:command = substitute(l:bang_line, ' --\?[a-zA-Z0-9]\+', '', 'g')
-
-        for l:possible_shell in ['bash', 'dash', 'ash', 'tcsh', 'csh', 'zsh', 'ksh', 'sh']
-            if l:command =~# l:possible_shell . '\s*$'
-                return l:possible_shell
-            endif
-        endfor
     endif
 
+    " If we couldn't find a hashbang, try the filetype
+    if l:command is# ''
+        let l:command = &filetype
+    endif
+
+    for l:possible_shell in ['bash', 'dash', 'ash', 'tcsh', 'csh', 'zsh', 'ksh', 'sh']
+        if l:command =~# l:possible_shell . '\s*$'
+            return l:possible_shell
+        endif
+    endfor
+
     return ''
 endfunction

autoload/ale/hover.vim

@@ -42,6 +42,8 @@ function! ale#hover#HandleTSServerResponse(conn_id, response) abort
             \&& exists('*balloon_show')
             \&& ale#Var(l:options.buffer, 'set_balloons')
                 call balloon_show(a:response.body.displayString)
+            elseif get(l:options, 'truncated_echo', 0)
+                call ale#cursor#TruncatedEcho(split(a:response.body.displayString, "\n")[0])
             elseif g:ale_hover_to_preview
                 call ale#preview#Show(split(a:response.body.displayString, "\n"), {
                 \   'filetype': 'ale-preview.message',
@@ -54,6 +56,137 @@ function! ale#hover#HandleTSServerResponse(conn_id, response) abort
     endif
 endfunction
 
+" Convert a language name to another one.
+" The language name could be an empty string or v:null
+function! s:ConvertLanguageName(language) abort
+    return a:language
+endfunction
+
+function! ale#hover#ParseLSPResult(contents) abort
+    let l:includes = {}
+    let l:highlights = []
+    let l:lines = []
+    let l:list = type(a:contents) is v:t_list ? a:contents : [a:contents]
+    let l:region_index = 0
+
+    for l:item in l:list
+        if !empty(l:lines)
+            call add(l:lines, '')
+        endif
+
+        if type(l:item) is v:t_dict && has_key(l:item, 'kind')
+            if l:item.kind is# 'markdown'
+                " Handle markdown values as we handle strings below.
+                let l:item = get(l:item, 'value', '')
+            elseif l:item.kind is# 'plaintext'
+                " We shouldn't try to parse plaintext as markdown.
+                " Pass the lines on and skip parsing them.
+                call extend(l:lines, split(get(l:item, 'value', ''), "\n"))
+
+                continue
+            endif
+        endif
+
+        let l:marked_list = []
+
+        " If the item is a string, then we should parse it as Markdown text.
+        if type(l:item) is v:t_string
+            let l:fence_language = v:null
+            let l:fence_lines = []
+
+            for l:line in split(l:item, "\n")
+                if l:fence_language is v:null
+                    " Look for the start of a code fence. (```python, etc.)
+                    let l:match = matchlist(l:line, '^```\(.*\)$')
+
+                    if !empty(l:match)
+                        let l:fence_language = l:match[1]
+
+                        if !empty(l:marked_list)
+                            call add(l:fence_lines, '')
+                        endif
+                    else
+                        if !empty(l:marked_list)
+                        \&& l:marked_list[-1][0] isnot v:null
+                            call add(l:marked_list, [v:null, ['']])
+                        endif
+
+                        call add(l:marked_list, [v:null, [l:line]])
+                    endif
+                elseif l:line =~# '^```$'
+                    " When we hit the end of a code fence, pass the fenced
+                    " lines on to the next steps below.
+                    call add(l:marked_list, [l:fence_language, l:fence_lines])
+                    let l:fence_language = v:null
+                    let l:fence_lines = []
+                else
+                    " Gather lines inside of a code fence.
+                    call add(l:fence_lines, l:line)
+                endif
+            endfor
+        " If the result from the LSP server is a {language: ..., value: ...}
+        " Dictionary, then that should be interpreted as if it was:
+        "
+        " ```${language}
+        " ${value}
+        " ```
+        elseif type(l:item) is v:t_dict
+        \&& has_key(l:item, 'language')
+        \&& type(l:item.language) is v:t_string
+        \&& has_key(l:item, 'value')
+        \&& type(l:item.value) is v:t_string
+            call add(
+            \   l:marked_list,
+            \   [l:item.language, split(l:item.value, "\n")],
+            \)
+        endif
+
+        for [l:language, l:marked_lines] in l:marked_list
+            if l:language is v:null
+                " NOTE: We could handle other Markdown formatting here.
+                call map(
+                \   l:marked_lines,
+                \   'substitute(v:val, ''\\_'', ''_'', ''g'')',
+                \)
+            else
+                let l:language = s:ConvertLanguageName(l:language)
+
+                if !empty(l:language)
+                    let l:includes[l:language] = printf(
+                    \   'syntax/%s.vim',
+                    \   l:language,
+                    \)
+
+                    let l:start = len(l:lines) + 1
+                    let l:end = l:start + len(l:marked_lines)
+                    let l:region_index += 1
+
+                    call add(l:highlights, 'syntax region'
+                    \   . ' ALE_hover_' . l:region_index
+                    \   . ' start=/\%' . l:start . 'l/'
+                    \   . ' end=/\%' . l:end . 'l/'
+                    \   . ' contains=@ALE_hover_' . l:language
+                    \)
+                endif
+            endif
+
+            call extend(l:lines, l:marked_lines)
+        endfor
+    endfor
+
+    let l:include_commands = []
+
+    for [l:language, l:lang_path] in sort(items(l:includes))
+        call add(l:include_commands, 'unlet! b:current_syntax')
+        call add(
+        \   l:include_commands,
+        \   printf('syntax include @ALE_hover_%s %s', l:language, l:lang_path),
+        \)
+    endfor
+
+    return [l:include_commands + l:highlights, l:lines]
+endfunction
+
 function! ale#hover#HandleLSPResponse(conn_id, response) abort
     if has_key(a:response, 'id')
     \&& has_key(s:hover_map, a:response.id)
@@ -80,37 +213,25 @@ function! ale#hover#HandleLSPResponse(conn_id, response) abort
             return
         endif
 
-        let l:result = l:result.contents
+        let [l:commands, l:lines] = ale#hover#ParseLSPResult(l:result.contents)
 
-        if type(l:result) is v:t_string
-            " The result can be just a string.
-            let l:result = [l:result]
-        endif
-
-        if type(l:result) is v:t_dict
-            " If the result is an object, then it's markup content.
-            let l:result = [l:result.value]
-        endif
-
-        if type(l:result) is v:t_list
-            " Replace objects with text values.
-            call map(l:result, 'type(v:val) is v:t_string ? v:val : v:val.value')
-            let l:str = join(l:result, "\n")
-            let l:str = substitute(l:str, '^\s*\(.\{-}\)\s*$', '\1', '')
-
-            if !empty(l:str)
-                if get(l:options, 'hover_from_balloonexpr', 0)
-                \&& exists('*balloon_show')
-                \&& ale#Var(l:options.buffer, 'set_balloons')
-                    call balloon_show(l:str)
-                elseif g:ale_hover_to_preview
-                    call ale#preview#Show(split(l:str, "\n"), {
-                    \   'filetype': 'ale-preview.message',
-                    \   'stay_here': 1,
-                    \})
-                else
-                    call ale#util#ShowMessage(l:str)
-                endif
+        if !empty(l:lines)
+            if get(l:options, 'hover_from_balloonexpr', 0)
+            \&& exists('*balloon_show')
+            \&& ale#Var(l:options.buffer, 'set_balloons')
+                call balloon_show(join(l:lines, "\n"))
+            elseif get(l:options, 'truncated_echo', 0)
+                call ale#cursor#TruncatedEcho(l:lines[0])
+            elseif g:ale_hover_to_preview
+                call ale#preview#Show(l:lines, {
+                \   'filetype': 'ale-preview.message',
+                \   'stay_here': 1,
+                \   'commands': l:commands,
+                \})
+            else
+                call ale#util#ShowMessage(join(l:lines, "\n"), {
+                \   'commands': l:commands,
+                \})
             endif
         endif
     endif
@@ -143,7 +264,10 @@ function! s:OnReady(line, column, opt, linter, lsp_details) abort
         " hover position probably won't make sense.
         call ale#lsp#NotifyForChanges(l:id, l:buffer)
 
-        let l:column = min([a:column, len(getbufline(l:buffer, a:line)[0])])
+        let l:column = max([
+        \   min([a:column, len(getbufline(l:buffer, a:line)[0])]),
+        \   1,
+        \])
 
         let l:message = ale#lsp#message#Hover(l:buffer, a:line, l:column)
     endif
@@ -156,6 +280,7 @@ function! s:OnReady(line, column, opt, linter, lsp_details) abort
     \   'column': l:column,
     \   'hover_from_balloonexpr': get(a:opt, 'called_from_balloonexpr', 0),
     \   'show_documentation': get(a:opt, 'show_documentation', 0),
+    \   'truncated_echo': get(a:opt, 'truncated_echo', 0),
     \}
 endfunction
 
@@ -181,6 +306,8 @@ function! ale#hover#Show(buffer, line, col, opt) abort
     endfor
 endfunction
 
+let s:last_pos = [0, 0, 0]
+
 " This function implements the :ALEHover command.
 function! ale#hover#ShowAtCursor() abort
     let l:buffer = bufnr('')
@@ -189,6 +316,25 @@ function! ale#hover#ShowAtCursor() abort
     call ale#hover#Show(l:buffer, l:pos[1], l:pos[2], {})
 endfunction
 
+function! ale#hover#ShowTruncatedMessageAtCursor() abort
+    let l:buffer = bufnr('')
+    let l:pos = getpos('.')[0:2]
+
+    if l:pos != s:last_pos
+        let s:last_pos = l:pos
+        let [l:info, l:loc] = ale#util#FindItemAtCursor(l:buffer)
+
+        if empty(l:loc)
+            call ale#hover#Show(
+            \   l:buffer,
+            \   l:pos[1],
+            \   l:pos[2],
+            \   {'truncated_echo': 1},
+            \)
+        endif
+    endif
+endfunction
+
 " This function implements the :ALEDocumentation command.
 function! ale#hover#ShowDocumentationAtCursor() abort
     let l:buffer = bufnr('')

autoload/ale/linter.vim

@@ -14,6 +14,7 @@ let s:default_ale_linter_aliases = {
 \   'csh': 'sh',
 \   'javascriptreact': ['javascript', 'jsx'],
 \   'plaintex': 'tex',
+\   'ps1': 'powershell',
 \   'rmarkdown': 'r',
 \   'rmd': 'r',
 \   'systemverilog': 'verilog',
@@ -31,7 +32,7 @@ let s:default_ale_linter_aliases = {
 "
 " No linters are used for plaintext files by default.
 "
-" Only cargo is enabled for Rust by default.
+" Only cargo and rls are enabled for Rust by default.
 " rpmlint is disabled by default because it can result in code execution.
 " hhast is disabled by default because it executes code in the project root.
 "
@@ -44,8 +45,8 @@ let s:default_ale_linters = {
 \   'help': [],
 \   'perl': ['perlcritic'],
 \   'perl6': [],
-\   'python': ['flake8', 'mypy', 'pylint'],
-\   'rust': ['cargo'],
+\   'python': ['flake8', 'mypy', 'pylint', 'pyright'],
+\   'rust': ['cargo', 'rls'],
 \   'spec': [],
 \   'text': [],
 \   'vue': ['eslint', 'vls'],
@@ -76,10 +77,6 @@ function! s:IsBoolean(value) abort
     return type(a:value) is v:t_number && (a:value == 0 || a:value == 1)
 endfunction
 
-function! s:LanguageGetter(buffer) dict abort
-    return l:self.language
-endfunction
-
 function! ale#linter#PreProcess(filetype, linter) abort
     if type(a:linter) isnot v:t_dict
         throw 'The linter object must be a Dictionary'
@@ -113,14 +110,7 @@ function! ale#linter#PreProcess(filetype, linter) abort
 
     if !l:needs_executable
         if has_key(a:linter, 'executable')
-        \|| has_key(a:linter, 'executable_callback')
-            throw '`executable` and `executable_callback` cannot be used when lsp == ''socket'''
-        endif
-    elseif has_key(a:linter, 'executable_callback')
-        let l:obj.executable_callback = a:linter.executable_callback
-
-        if !s:IsCallback(l:obj.executable_callback)
-            throw '`executable_callback` must be a callback if defined'
+            throw '`executable` cannot be used when lsp == ''socket'''
         endif
     elseif has_key(a:linter, 'executable')
         let l:obj.executable = a:linter.executable
@@ -130,54 +120,12 @@ function! ale#linter#PreProcess(filetype, linter) abort
             throw '`executable` must be a String or Function if defined'
         endif
     else
-        throw 'Either `executable` or `executable_callback` must be defined'
+        throw '`executable` must be defined'
     endif
 
     if !l:needs_command
         if has_key(a:linter, 'command')
-        \|| has_key(a:linter, 'command_callback')
-        \|| has_key(a:linter, 'command_chain')
-            throw '`command` and `command_callback` and `command_chain` cannot be used when lsp == ''socket'''
-        endif
-    elseif has_key(a:linter, 'command_chain')
-        let l:obj.command_chain = a:linter.command_chain
-
-        if type(l:obj.command_chain) isnot v:t_list
-            throw '`command_chain` must be a List'
-        endif
-
-        if empty(l:obj.command_chain)
-            throw '`command_chain` must contain at least one item'
-        endif
-
-        let l:link_index = 0
-
-        for l:link in l:obj.command_chain
-            let l:err_prefix = 'The `command_chain` item ' . l:link_index . ' '
-
-            if !s:IsCallback(get(l:link, 'callback'))
-                throw l:err_prefix . 'must define a `callback` function'
-            endif
-
-            if has_key(l:link, 'output_stream')
-                if type(l:link.output_stream) isnot v:t_string
-                \|| index(['stdout', 'stderr', 'both'], l:link.output_stream) < 0
-                    throw l:err_prefix . '`output_stream` flag must be '
-                    \   . "'stdout', 'stderr', or 'both'"
-                endif
-            endif
-
-            if has_key(l:link, 'read_buffer') && !s:IsBoolean(l:link.read_buffer)
-                throw l:err_prefix . 'value for `read_buffer` must be `0` or `1`'
-            endif
-
-            let l:link_index += 1
-        endfor
-    elseif has_key(a:linter, 'command_callback')
-        let l:obj.command_callback = a:linter.command_callback
-
-        if !s:IsCallback(l:obj.command_callback)
-            throw '`command_callback` must be a callback if defined'
+            throw '`command` cannot be used when lsp == ''socket'''
         endif
     elseif has_key(a:linter, 'command')
         let l:obj.command = a:linter.command
@@ -187,22 +135,12 @@ function! ale#linter#PreProcess(filetype, linter) abort
             throw '`command` must be a String or Function if defined'
         endif
     else
-        throw 'Either `command`, `executable_callback`, `command_chain` '
-        \   . 'must be defined'
-    endif
-
-    if (
-    \   has_key(a:linter, 'command')
-    \   + has_key(a:linter, 'command_chain')
-    \   + has_key(a:linter, 'command_callback')
-    \) > 1
-        throw 'Only one of `command`, `command_callback`, or `command_chain` '
-        \   . 'should be set'
+        throw '`command` must be defined'
     endif
 
     if !l:needs_address
-        if has_key(a:linter, 'address') || has_key(a:linter, 'address_callback')
-            throw '`address` or `address_callback` cannot be used when lsp != ''socket'''
+        if has_key(a:linter, 'address')
+            throw '`address` cannot be used when lsp != ''socket'''
         endif
     elseif has_key(a:linter, 'address')
         if type(a:linter.address) isnot v:t_string
@@ -211,41 +149,17 @@ function! ale#linter#PreProcess(filetype, linter) abort
         endif
 
         let l:obj.address = a:linter.address
-    elseif has_key(a:linter, 'address_callback')
-        let l:obj.address_callback = a:linter.address_callback
-
-        if !s:IsCallback(l:obj.address_callback)
-            throw '`address_callback` must be a callback if defined'
-        endif
     else
-        throw '`address` or `address_callback` must be defined for getting the LSP address'
+        throw '`address` must be defined for getting the LSP address'
     endif
 
     if l:needs_lsp_details
-        if has_key(a:linter, 'language_callback')
-            if has_key(a:linter, 'language')
-                throw 'Only one of `language` or `language_callback` '
-                \   . 'should be set'
-            endif
+        " Default to using the filetype as the language.
+        let l:obj.language = get(a:linter, 'language', a:filetype)
 
-            let l:obj.language_callback = get(a:linter, 'language_callback')
-
-            if !s:IsCallback(l:obj.language_callback)
-                throw '`language_callback` must be a callback for LSP linters'
-            endif
-        else
-            " Default to using the filetype as the language.
-            let l:Language = get(a:linter, 'language', a:filetype)
-
-            if type(l:Language) is v:t_string
-                " Make 'language_callback' return the 'language' value.
-                let l:obj.language = l:Language
-                let l:obj.language_callback = function('s:LanguageGetter')
-            elseif type(l:Language) is v:t_func
-                let l:obj.language_callback = l:Language
-            else
-                throw '`language` must be a String or Funcref'
-            endif
+        if type(l:obj.language) isnot v:t_string
+        \&& type(l:obj.language) isnot v:t_func
+            throw '`language` must be a String or Funcref if defined'
         endif
 
         if has_key(a:linter, 'project_root')
@@ -253,16 +167,10 @@ function! ale#linter#PreProcess(filetype, linter) abort
 
             if type(l:obj.project_root) isnot v:t_string
             \&& type(l:obj.project_root) isnot v:t_func
-                throw '`project_root` must be a String or Function if defined'
-            endif
-        elseif has_key(a:linter, 'project_root_callback')
-            let l:obj.project_root_callback = a:linter.project_root_callback
-
-            if !s:IsCallback(l:obj.project_root_callback)
-                throw '`project_root_callback` must be a callback if defined'
+                throw '`project_root` must be a String or Function'
             endif
         else
-            throw '`project_root` or `project_root_callback` must be defined for LSP linters'
+            throw '`project_root` must be defined for LSP linters'
         endif
 
         if has_key(a:linter, 'completion_filter')
@@ -273,37 +181,16 @@ function! ale#linter#PreProcess(filetype, linter) abort
             endif
         endif
 
-        if has_key(a:linter, 'initialization_options_callback')
-            if has_key(a:linter, 'initialization_options')
-                throw 'Only one of `initialization_options` or '
-                \   . '`initialization_options_callback` should be set'
-            endif
-
-            let l:obj.initialization_options_callback = a:linter.initialization_options_callback
-
-            if !s:IsCallback(l:obj.initialization_options_callback)
-                throw '`initialization_options_callback` must be a callback if defined'
-            endif
-        elseif has_key(a:linter, 'initialization_options')
+        if has_key(a:linter, 'initialization_options')
             let l:obj.initialization_options = a:linter.initialization_options
 
             if type(l:obj.initialization_options) isnot v:t_dict
             \&& type(l:obj.initialization_options) isnot v:t_func
-                throw '`initialization_options` must be a String or Function if defined'
+                throw '`initialization_options` must be a Dictionary or Function if defined'
             endif
         endif
 
-        if has_key(a:linter, 'lsp_config_callback')
-            if has_key(a:linter, 'lsp_config')
-                throw 'Only one of `lsp_config` or `lsp_config_callback` should be set'
-            endif
-
-            let l:obj.lsp_config_callback = a:linter.lsp_config_callback
-
-            if !s:IsCallback(l:obj.lsp_config_callback)
-                throw '`lsp_config_callback` must be a callback if defined'
-            endif
-        elseif has_key(a:linter, 'lsp_config')
+        if has_key(a:linter, 'lsp_config')
             if type(a:linter.lsp_config) isnot v:t_dict
             \&& type(a:linter.lsp_config) isnot v:t_func
                 throw '`lsp_config` must be a Dictionary or Function if defined'
@@ -324,21 +211,17 @@ function! ale#linter#PreProcess(filetype, linter) abort
     " file on disk.
     let l:obj.lint_file = get(a:linter, 'lint_file', 0)
 
-    if !s:IsBoolean(l:obj.lint_file)
-        throw '`lint_file` must be `0` or `1`'
+    if !s:IsBoolean(l:obj.lint_file) && type(l:obj.lint_file) isnot v:t_func
+        throw '`lint_file` must be `0`, `1`, or a Function'
     endif
 
     " An option indicating that the buffer should be read.
-    let l:obj.read_buffer = get(a:linter, 'read_buffer', !l:obj.lint_file)
+    let l:obj.read_buffer = get(a:linter, 'read_buffer', 1)
 
     if !s:IsBoolean(l:obj.read_buffer)
         throw '`read_buffer` must be `0` or `1`'
     endif
 
-    if l:obj.lint_file && l:obj.read_buffer
-        throw 'Only one of `lint_file` or `read_buffer` can be `1`'
-    endif
-
     let l:obj.aliases = get(a:linter, 'aliases', [])
 
     if type(l:obj.aliases) isnot v:t_list
@@ -346,14 +229,6 @@ function! ale#linter#PreProcess(filetype, linter) abort
         throw '`aliases` must be a List of String values'
     endif
 
-    for l:key in filter(keys(a:linter), 'v:val[-9:] is# ''_callback'' || v:val is# ''command_chain''')
-        if !get(g:, 'ale_ignore_2_4_warnings')
-            execute 'echom l:key . '' is deprecated. Use `let g:ale_ignore_2_4_warnings = 1` to disable this message.'''
-        endif
-
-        break
-    endfor
-
     return l:obj
 endfunction
 
@@ -519,11 +394,19 @@ function! ale#linter#Get(original_filetypes) abort
     return reverse(l:combined_linters)
 endfunction
 
+function! ale#linter#RemoveIgnored(buffer, filetype, linters) abort
+    " Apply ignore lists for linters only if needed.
+    let l:ignore_config = ale#Var(a:buffer, 'linters_ignore')
+    let l:disable_lsp = ale#Var(a:buffer, 'disable_lsp')
+
+    return !empty(l:ignore_config) || l:disable_lsp
+    \   ? ale#engine#ignore#Exclude(a:filetype, a:linters, l:ignore_config, l:disable_lsp)
+    \   : a:linters
+endfunction
+
 " Given a buffer and linter, get the executable String for the linter.
 function! ale#linter#GetExecutable(buffer, linter) abort
-    let l:Executable = has_key(a:linter, 'executable_callback')
-    \   ? function(a:linter.executable_callback)
-    \   : a:linter.executable
+    let l:Executable = a:linter.executable
 
     return type(l:Executable) is v:t_func
     \   ? l:Executable(a:buffer)
@@ -531,24 +414,21 @@ function! ale#linter#GetExecutable(buffer, linter) abort
 endfunction
 
 " Given a buffer and linter, get the command String for the linter.
-" The command_chain key is not supported.
 function! ale#linter#GetCommand(buffer, linter) abort
-    let l:Command = has_key(a:linter, 'command_callback')
-    \   ? function(a:linter.command_callback)
-    \   : a:linter.command
+    let l:Command = a:linter.command
 
-    return type(l:Command) is v:t_func
-    \   ? l:Command(a:buffer)
-    \   : l:Command
+    return type(l:Command) is v:t_func ? l:Command(a:buffer) : l:Command
 endfunction
 
 " Given a buffer and linter, get the address for connecting to the server.
 function! ale#linter#GetAddress(buffer, linter) abort
-    let l:Address = has_key(a:linter, 'address_callback')
-    \   ? function(a:linter.address_callback)
-    \   : a:linter.address
+    let l:Address = a:linter.address
 
-    return type(l:Address) is v:t_func
-    \   ? l:Address(a:buffer)
-    \   : l:Address
+    return type(l:Address) is v:t_func ? l:Address(a:buffer) : l:Address
+endfunction
+
+function! ale#linter#GetLanguage(buffer, linter) abort
+    let l:Language = a:linter.language
+
+    return type(l:Language) is v:t_func ? l:Language(a:buffer) : l:Language
 endfunction

autoload/ale/lsp.vim

@@ -64,6 +64,9 @@ endfunction
 
 " Used only in tests.
 function! ale#lsp#GetConnections() abort
+    " This command will throw from the sandbox.
+    let &l:equalprg=&l:equalprg
+
     return s:connections
 endfunction
 
@@ -196,14 +199,26 @@ function! s:UpdateCapabilities(conn, capabilities) abort
         let a:conn.capabilities.hover = 1
     endif
 
+    if type(get(a:capabilities, 'hoverProvider')) is v:t_dict
+        let a:conn.capabilities.hover = 1
+    endif
+
     if get(a:capabilities, 'referencesProvider') is v:true
         let a:conn.capabilities.references = 1
     endif
 
+    if type(get(a:capabilities, 'referencesProvider')) is v:t_dict
+        let a:conn.capabilities.references = 1
+    endif
+
     if get(a:capabilities, 'renameProvider') is v:true
         let a:conn.capabilities.rename = 1
     endif
 
+    if type(get(a:capabilities, 'renameProvider')) is v:t_dict
+        let a:conn.capabilities.rename = 1
+    endif
+
     if !empty(get(a:capabilities, 'completionProvider'))
         let a:conn.capabilities.completion = 1
     endif
@@ -220,13 +235,25 @@ function! s:UpdateCapabilities(conn, capabilities) abort
         let a:conn.capabilities.definition = 1
     endif
 
+    if type(get(a:capabilities, 'definitionProvider')) is v:t_dict
+        let a:conn.capabilities.definition = 1
+    endif
+
     if get(a:capabilities, 'typeDefinitionProvider') is v:true
         let a:conn.capabilities.typeDefinition = 1
     endif
 
+    if type(get(a:capabilities, 'typeDefinitionProvider')) is v:t_dict
+        let a:conn.capabilities.typeDefinition = 1
+    endif
+
     if get(a:capabilities, 'workspaceSymbolProvider') is v:true
         let a:conn.capabilities.symbol_search = 1
     endif
+
+    if type(get(a:capabilities, 'workspaceSymbolProvider')) is v:t_dict
+        let a:conn.capabilities.symbol_search = 1
+    endif
 endfunction
 
 " Update a connection's configuration dictionary and notify LSP servers
@@ -425,6 +452,7 @@ function! ale#lsp#StartProgram(conn_id, executable, command) abort
     endif
 
     if l:started && !l:conn.is_tsserver
+        let l:conn.initialized = 0
         call s:SendInitMessage(l:conn)
     endif
 

autoload/ale/lsp_linter.vim

@@ -34,7 +34,11 @@ endfunction
 function! s:HandleLSPDiagnostics(conn_id, response) abort
     let l:linter_name = s:lsp_linter_map[a:conn_id]
     let l:filename = ale#path#FromURI(a:response.params.uri)
-    let l:buffer = bufnr('^' . l:filename . '$')
+    let l:escaped_name = escape(
+    \   fnameescape(l:filename),
+    \   has('win32') ? '^' : '^,}]'
+    \)
+    let l:buffer = bufnr('^' . l:escaped_name . '$')
     let l:info = get(g:ale_buffer_info, l:buffer, {})
 
     if empty(l:info)
@@ -52,7 +56,11 @@ endfunction
 
 function! s:HandleTSServerDiagnostics(response, error_type) abort
     let l:linter_name = 'tsserver'
-    let l:buffer = bufnr('^' . a:response.body.file . '$')
+    let l:escaped_name = escape(
+    \   fnameescape(a:response.body.file),
+    \   has('win32') ? '^' : '^,}]'
+    \)
+    let l:buffer = bufnr('^' . l:escaped_name . '$')
     let l:info = get(g:ale_buffer_info, l:buffer, {})
 
     if empty(l:info)
@@ -227,7 +235,7 @@ function! ale#lsp_linter#OnInit(linter, details, Callback) abort
     let l:command = a:details.command
 
     let l:config = ale#lsp_linter#GetConfig(l:buffer, a:linter)
-    let l:language_id = ale#util#GetFunction(a:linter.language_callback)(l:buffer)
+    let l:language_id = ale#linter#GetLanguage(l:buffer, a:linter)
 
     call ale#lsp#UpdateConfig(l:conn_id, l:buffer, l:config)
 
@@ -265,7 +273,14 @@ function! s:StartLSP(options, address, executable, command) abort
             call ale#lsp#MarkConnectionAsTsserver(l:conn_id)
         endif
 
-        let l:command = ale#command#FormatCommand(l:buffer, a:executable, a:command, 0, v:false)[1]
+        let l:command = ale#command#FormatCommand(
+        \   l:buffer,
+        \   a:executable,
+        \   a:command,
+        \   0,
+        \   v:false,
+        \   [],
+        \)[1]
         let l:command = ale#job#PrepareCommand(l:buffer, l:command)
         let l:ready = ale#lsp#StartProgram(l:conn_id, a:executable, l:command)
     endif

autoload/ale/path.vim

@@ -24,6 +24,14 @@ function! ale#path#Simplify(path) abort
     return substitute(simplify(l:win_path), '^\\\+', '\', 'g') " no-custom-checks
 endfunction
 
+" Simplify a path without a Windows drive letter.
+" This function can be used for checking if paths are equal.
+function! ale#path#RemoveDriveLetter(path) abort
+    return has('win32') && a:path[1:2] is# ':\'
+    \   ? ale#path#Simplify(a:path[2:])
+    \   : ale#path#Simplify(a:path)
+endfunction
+
 " Given a buffer and a filename, find the nearest file by searching upwards
 " through the paths relative to the given buffer.
 function! ale#path#FindNearestFile(buffer, filename) abort
@@ -74,15 +82,19 @@ endfunction
 function! ale#path#CdString(directory) abort
     if has('win32')
         return 'cd /d ' . ale#Escape(a:directory) . ' && '
-    else
-        return 'cd ' . ale#Escape(a:directory) . ' && '
     endif
+
+    return 'cd ' . ale#Escape(a:directory) . ' && '
 endfunction
 
 " Output 'cd <buffer_filename_directory> && '
 " This function can be used changing the directory for a linter command.
 function! ale#path#BufferCdString(buffer) abort
-    return ale#path#CdString(fnamemodify(bufname(a:buffer), ':p:h'))
+    if has('win32')
+        return 'cd /d %s:h && '
+    endif
+
+    return 'cd %s:h && '
 endfunction
 
 " Return 1 if a path is an absolute path.
@@ -95,7 +107,7 @@ function! ale#path#IsAbsolute(filename) abort
     return a:filename[:0] is# '/' || a:filename[1:2] is# ':\'
 endfunction
 
-let s:temp_dir = ale#path#Simplify(fnamemodify(ale#util#Tempname(), ':h'))
+let s:temp_dir = ale#path#Simplify(fnamemodify(ale#util#Tempname(), ':h:h'))
 
 " Given a filename, return 1 if the file represents some temporary file
 " created by Vim.

autoload/ale/preview.vim

@@ -1,14 +1,22 @@
 " Author: w0rp <devw0rp@gmail.com>
 " Description: Preview windows for showing whatever information in.
 
-if !has_key(s:, 'last_selection_list')
-    let s:last_selection_list = []
+if !has_key(s:, 'last__list')
+    let s:last_list = []
 endif
 
-if !has_key(s:, 'last_selection_open_in')
-    let s:last_selection_open_in = 'current-buffer'
+if !has_key(s:, 'last_options')
+    let s:last_options = {}
 endif
 
+function! ale#preview#SetLastSelection(item_list, options) abort
+    let s:last_list = a:item_list
+    let s:last_options = {
+    \   'open_in': get(a:options, 'open_in', 'current-buffer'),
+    \   'use_relative_paths': get(a:options, 'use_relative_paths', 0),
+    \}
+endfunction
+
 " Open a preview window and show some lines in it.
 " A second argument can be passed as a Dictionary with options. They are...
 "
@@ -31,6 +39,10 @@ function! ale#preview#Show(lines, ...) abort
     setlocal readonly
     let &l:filetype = get(l:options, 'filetype', 'ale-preview')
 
+    for l:command in get(l:options, 'commands', [])
+        call execute(l:command)
+    endfor
+
     if get(l:options, 'stay_here')
         wincmd p
     endif
@@ -77,19 +89,14 @@ function! ale#preview#ShowSelection(item_list, ...) abort
     let b:ale_preview_item_list = a:item_list
     let b:ale_preview_item_open_in = get(l:options, 'open_in', 'current-buffer')
 
-    " Remove the last preview
-    let s:last_selection_list = b:ale_preview_item_list
-    let s:last_selection_open_in = b:ale_preview_item_open_in
+    " Remember preview state, so we can repeat it later.
+    call ale#preview#SetLastSelection(a:item_list, l:options)
 endfunction
 
 function! ale#preview#RepeatSelection() abort
-    if empty(s:last_selection_list)
-        return
+    if !empty(s:last_list)
+        call ale#preview#ShowSelection(s:last_list, s:last_options)
     endif
-
-    call ale#preview#ShowSelection(s:last_selection_list, {
-    \   'open_in': s:last_selection_open_in,
-    \})
 endfunction
 
 function! s:Open(open_in) abort

autoload/ale/rename.vim

@@ -83,6 +83,31 @@ function! ale#rename#HandleTSServerResponse(conn_id, response) abort
     \}, v:true)
 endfunction
 
+function! s:getChanges(workspace_edit) abort
+    let l:changes = {}
+
+    if has_key(a:workspace_edit, 'changes') && !empty(a:workspace_edit.changes)
+        return a:workspace_edit.changes
+    elseif has_key(a:workspace_edit, 'documentChanges')
+        let l:document_changes = []
+
+        if type(a:workspace_edit.documentChanges) is v:t_dict
+        \ && has_key(a:workspace_edit.documentChanges, 'edits')
+            call add(l:document_changes, a:workspace_edit.documentChanges)
+        elseif type(a:workspace_edit.documentChanges) is v:t_list
+            let l:document_changes = a:workspace_edit.documentChanges
+        endif
+
+        for l:text_document_edit in l:document_changes
+            let l:filename = l:text_document_edit.textDocument.uri
+            let l:edits = l:text_document_edit.edits
+            let l:changes[l:filename] = l:edits
+        endfor
+    endif
+
+    return l:changes
+endfunction
+
 function! ale#rename#HandleLSPResponse(conn_id, response) abort
     if has_key(a:response, 'id')
     \&& has_key(s:rename_map, a:response.id)
@@ -94,9 +119,9 @@ function! ale#rename#HandleLSPResponse(conn_id, response) abort
             return
         endif
 
-        let l:workspace_edit = a:response.result
+        let l:changes_map = s:getChanges(a:response.result)
 
-        if !has_key(l:workspace_edit, 'changes') || empty(l:workspace_edit.changes)
+        if empty(l:changes_map)
             call s:message('No changes received from server')
 
             return
@@ -104,8 +129,8 @@ function! ale#rename#HandleLSPResponse(conn_id, response) abort
 
         let l:changes = []
 
-        for l:file_name in keys(l:workspace_edit.changes)
-            let l:text_edits = l:workspace_edit.changes[l:file_name]
+        for l:file_name in keys(l:changes_map)
+            let l:text_edits = l:changes_map[l:file_name]
             let l:text_changes = []
 
             for l:edit in l:text_edits

autoload/ale/test.vim

@@ -145,8 +145,8 @@ function! ale#test#WaitForJobs(deadline) abort
     " end, but before handlers are run.
     sleep 10ms
 
-    " We must check the buffer data again to see if new jobs started
-    " for command_chain linters.
+    " We must check the buffer data again to see if new jobs started for
+    " linters with chained commands.
     let l:has_new_jobs = 0
 
     " Check again to see if any jobs are running.

autoload/ale/uri.vim

@@ -1,9 +1,18 @@
-" This probably doesn't handle Unicode characters well.
+function! s:EncodeChar(char) abort
+    let l:result = ''
+
+    for l:index in range(strlen(a:char))
+        let l:result .= printf('%%%02x', char2nr(a:char[l:index]))
+    endfor
+
+    return l:result
+endfunction
+
 function! ale#uri#Encode(value) abort
     return substitute(
     \   a:value,
     \   '\([^a-zA-Z0-9\\/$\-_.!*''(),]\)',
-    \   '\=printf(''%%%02x'', char2nr(submatch(1)))',
+    \   '\=s:EncodeChar(submatch(1))',
     \   'g'
     \)
 endfunction
@@ -12,7 +21,7 @@ function! ale#uri#Decode(value) abort
     return substitute(
     \   a:value,
     \   '%\(\x\x\)',
-    \   '\=nr2char(''0x'' . submatch(1))',
+    \   '\=printf("%c", str2nr(submatch(1), 16))',
     \   'g'
     \)
 endfunction

autoload/ale/util.vim

@@ -16,7 +16,9 @@ endfunction
 " Vim 8 does not support echoing long messages from asynchronous callbacks,
 " but NeoVim does. Small messages can be echoed in Vim 8, and larger messages
 " have to be shown in preview windows.
-function! ale#util#ShowMessage(string) abort
+function! ale#util#ShowMessage(string, ...) abort
+    let l:options = get(a:000, 0, {})
+
     if !has('nvim')
         call ale#preview#CloseIfTypeMatches('ale-preview.message')
     endif
@@ -25,10 +27,13 @@ function! ale#util#ShowMessage(string) abort
     if has('nvim') || (a:string !~? "\n" && len(a:string) < &columns)
         execute 'echo a:string'
     else
-        call ale#preview#Show(split(a:string, "\n"), {
-        \   'filetype': 'ale-preview.message',
-        \   'stay_here': 1,
-        \})
+        call ale#preview#Show(split(a:string, "\n"), extend(
+        \   {
+        \       'filetype': 'ale-preview.message',
+        \       'stay_here': 1,
+        \   },
+        \   l:options,
+        \))
     endif
 endfunction
 
@@ -418,7 +423,10 @@ function! ale#util#Writefile(buffer, lines, filename) abort
     \   ? map(copy(a:lines), 'substitute(v:val, ''\r*$'', ''\r'', '''')')
     \   : a:lines
 
-    call writefile(l:corrected_lines, a:filename, 'S') " no-custom-checks
+    " Set binary flag if buffer doesn't have eol and nofixeol to avoid appending newline
+    let l:flags = !getbufvar(a:buffer, '&eol') && exists('+fixeol') && !&fixeol ? 'bS' : 'S'
+
+    call writefile(l:corrected_lines, a:filename, l:flags) " no-custom-checks
 endfunction
 
 if !exists('s:patial_timers')

doc/ale-c.txt

@@ -1,22 +1,36 @@
 ===============================================================================
 ALE C Integration                                               *ale-c-options*
 
+For basic checking of problems with C files, ALE offers the `cc` linter, which
+runs either `clang`, or `gcc`. See |ale-c-cc|.
+
 
 ===============================================================================
 Global Options
 
+g:ale_c_always_make                                       *g:ale_c_always_make*
+                                                          *b:ale_c_always_make*
+  Type: |Number|
+  Default: `has('unix') && !has('macunix')`
+
+  If set to `1`, use `--always-make` for `make`, which means that output will
+  always be parsed from `make` dry runs with GNU make. BSD `make` does not
+  support this option, so you probably want to turn this option off when using
+  a BSD variant.
+
+
 g:ale_c_build_dir_names                               *g:ale_c_build_dir_names*
                                                       *b:ale_c_build_dir_names*
 
   Type: |List|
   Default: `['build', 'bin']`
 
-  A list of directory names to be used when searching upwards from cpp
-  files to discover compilation databases with. For directory named `'foo'`,
-  ALE will search for `'foo/compile_commands.json'` in all directories on and above
-  the directory containing the cpp file to find path to compilation database.
-  This feature is useful for the clang tools wrapped around LibTooling (namely
-  here, clang-tidy)
+  A list of directory names to be used when searching upwards from cpp files
+  to discover compilation databases with. For directory named `'foo'`, ALE
+  will search for `'foo/compile_commands.json'` in all directories on and
+  above the directory containing the cpp file to find path to compilation
+  database.  This feature is useful for the clang tools wrapped around
+  LibTooling (namely here, clang-tidy)
 
 
 g:ale_c_build_dir                                           *g:ale_c_build_dir*
@@ -37,7 +51,7 @@ g:ale_c_build_dir                                           *g:ale_c_build_dir*
 g:ale_c_parse_compile_commands                 *g:ale_c_parse_compile_commands*
                                                *b:ale_c_parse_compile_commands*
   Type: |Number|
-  Default: `0`
+  Default: `1`
 
   If set to `1`, ALE will parse `compile_commands.json` files to automatically
   determine flags for C or C++ compilers. ALE will first search for the
@@ -45,9 +59,6 @@ g:ale_c_parse_compile_commands                 *g:ale_c_parse_compile_commands*
   `compile_commands.json` files in the directories for
   |g:ale_c_build_dir_names|.
 
-  If |g:ale_c_parse_makefile| or |b:ale_c_parse_makefile| is set to `1`, the
-  output of `make -n` will be preferred over `compile_commands.json` files.
-
 
 g:ale_c_parse_makefile                                 *g:ale_c_parse_makefile*
                                                        *b:ale_c_parse_makefile*
@@ -58,24 +69,102 @@ g:ale_c_parse_makefile                                 *g:ale_c_parse_makefile*
   set for C or C++ compilers. This can make it easier to determine the correct
   build flags to use for different files.
 
+  NOTE: When using this option on BSD, you may need to set
+  |g:ale_c_always_make| to `0`, and `make -n` will not provide consistent
+  results if binaries have already been built, so use `make clean` when
+  editing your files.
+
+  WARNING: Running `make -n` automatically can execute arbitrary code, even
+  though it's supposed to be a dry run, so enable this option with care. You
+  might prefer to use the buffer-local version of the option instead with
+  |g:ale_pattern_options|, or you own code for checking which project you're
+  in.
+
+  You might want to disable this option if `make -n` takes too long to run for
+  projects you work on.
+
+  If |g:ale_c_parse_compile_commands| or |b:ale_c_parse_compile_commands| is
+  set to `1`, flags taken from `compile_commands.json` will be preferred over
+  `make -n` output.
+
 
 ===============================================================================
-clang                                                             *ale-c-clang*
+astyle                                                           *ale-c-astyle*
 
-g:ale_c_clang_executable                             *g:ale_c_clang_executable*
-                                                     *b:ale_c_clang_executable*
+g:ale_c_astyle_executable                           *g:ale_c_astyle_executable*
+                                                    *b:ale_c_astyle_executable*
   Type: |String|
-  Default: `'clang'`
+  Default: `'astyle'`
 
-  This variable can be changed to use a different executable for clang.
+  This variable can be changed to use a different executable for astyle.
 
 
-g:ale_c_clang_options                                   *g:ale_c_clang_options*
-                                                        *b:ale_c_clang_options*
+g:ale_c_astyle_project_options                 *g:ale_c_astyle_project_options*
+                                               *b:ale_c_astyle_project_options*
+  Type: |String|
+  Default: `''`
+
+  This variable can be changed to use an option file for project level
+  configurations. Provide only the filename of the option file that should be
+  present at the project's root directory.
+
+  For example, if .astylrc is specified, the file is searched in the parent
+  directories of the source file's directory.
+
+
+===============================================================================
+cc                                                                   *ale-c-cc*
+                                                                    *ale-c-gcc*
+                                                                  *ale-c-clang*
+
+g:ale_c_cc_executable                                   *g:ale_c_cc_executable*
+                                                        *b:ale_c_cc_executable*
+  Type: |String|
+  Default: `'<auto>'`
+
+  This variable can be changed to use a different executable for a C compiler.
+
+  ALE will try to use `clang` if Clang is available, otherwise ALE will
+  default to checking C code with `gcc`.
+
+
+g:ale_c_cc_options                                         *g:ale_c_cc_options*
+                                                           *b:ale_c_cc_options*
   Type: |String|
   Default: `'-std=c11 -Wall'`
 
-  This variable can be changed to modify flags given to clang.
+  This variable can be change to modify flags given to the C compiler.
+
+
+===============================================================================
+ccls                                                               *ale-c-ccls*
+
+g:ale_c_ccls_executable                               *g:ale_c_ccls_executable*
+                                                      *b:ale_c_ccls_executable*
+  Type: |String|
+  Default: `'ccls'`
+
+  This variable can be changed to use a different executable for ccls.
+
+
+g:ale_c_ccls_init_options                           *g:ale_c_ccls_init_options*
+                                                    *b:ale_c_ccls_init_options*
+  Type: |Dictionary|
+  Default: `{}`
+
+  This variable can be changed to customize ccls initialization options.
+  Example: >
+      {
+    \   'cacheDirectory': '/tmp/ccls',
+    \   'cacheFormat': 'binary',
+    \   'diagnostics': {
+    \     'onOpen': 0,
+    \     'opChange': 1000,
+    \   },
+    \ }
+<
+  Visit https://github.com/MaskRay/ccls/wiki/Initialization-options for all
+  available options and explanations.
 
 
 ===============================================================================
@@ -260,25 +349,6 @@ g:ale_c_flawfinder_error_severity           *g:ale_c_flawfinder_error_severity*
   error.  This setting also applies to flawfinder for c++.
 
 
-===============================================================================
-gcc                                                                 *ale-c-gcc*
-
-g:ale_c_gcc_executable                                 *g:ale_c_gcc_executable*
-                                                       *b:ale_c_gcc_executable*
-  Type: |String|
-  Default: `'gcc'`
-
-  This variable can be changed to use a different executable for gcc.
-
-
-g:ale_c_gcc_options                                       *g:ale_c_gcc_options*
-                                                          *b:ale_c_gcc_options*
-  Type: |String|
-  Default: `'-std=c11 -Wall'`
-
-  This variable can be change to modify flags given to gcc.
-
-
 ===============================================================================
 uncrustify                                                   *ale-c-uncrustify*
 
@@ -298,36 +368,5 @@ g:ale_c_uncrustify_options                         *g:ale_c_uncrustify_options*
   This variable can be change to modify flags given to uncrustify.
 
 
-===============================================================================
-ccls                                                               *ale-c-ccls*
-
-g:ale_c_ccls_executable                               *g:ale_c_ccls_executable*
-                                                      *b:ale_c_ccls_executable*
-  Type: |String|
-  Default: `'ccls'`
-
-  This variable can be changed to use a different executable for ccls.
-
-
-g:ale_c_ccls_init_options                           *g:ale_c_ccls_init_options*
-                                                    *b:ale_c_ccls_init_options*
-  Type: |Dictionary|
-  Default: `{}`
-
-  This variable can be changed to customize ccls initialization options.
-  Example: >
-      {
-    \   'cacheDirectory': '/tmp/ccls',
-    \   'cacheFormat': 'binary',
-    \   'diagnostics': {
-    \     'onOpen': 0,
-    \     'opChange': 1000,
-    \   },
-    \ }
-<
-  Visit https://github.com/MaskRay/ccls/wiki/Initialization-options for all
-  available options and explanations.
-
-
 ===============================================================================
   vim:tw=78:ts=2:sts=2:sw=2:ft=help:norl:

doc/ale-cloudformation.txt

@@ -7,8 +7,40 @@ cfn-python-lint                             *ale-cloudformation-cfn-python-lint*
 
 cfn-python-lint is a linter for AWS CloudFormation template file.
 
-https://github.com/awslabs/cfn-python-lint
+Website: https://github.com/awslabs/cfn-python-lint
 
+Installation
+-------------------------------------------------------------------------------
+
+
+Install cfn-python-lint using either pip or brew: >
+
+`pip install cfn-lint`. If pip is not available, run
+`python setup.py clean --all` then `python setup.py install`.
+
+ Homebrew (macOS):
+
+`brew install cfn-lint`
+
+<
+Configuration
+-------------------------------------------------------------------------------
+
+To get cloudformation linter to work on only CloudFormation files  we must set
+the buffer |filetype| to yaml.cloudformation.
+This causes ALE to lint the file with linters configured for cloudformation and
+yaml files.
+
+Just put:
+
+>
+
+ au BufRead,BufNewFile *.template.yaml set filetype=yaml.cloudformation
+
+<
+
+on `ftdetect/cloudformation.vim`
+
+This will get both cloudformation and yaml linters to work on any file with `.template.yaml` ext.
 ===============================================================================
   vim:tw=78:ts=2:sts=2:sw=2:ft=help:norl:
-

doc/ale-cpp.txt

@@ -1,12 +1,16 @@
 ===============================================================================
 ALE C++ Integration                                           *ale-cpp-options*
 
+For basic checking of problems with C++ files, ALE offers the `cc` linter,
+which runs either `clang++`, or `gcc`. See |ale-cpp-cc|.
+
 
 ===============================================================================
 Global Options
 
 The following C options also apply to some C++ linters too.
 
+* |g:ale_c_always_make|
 * |g:ale_c_build_dir_names|
 * |g:ale_c_build_dir|
 * |g:ale_c_parse_makefile|
@@ -14,41 +18,82 @@ The following C options also apply to some C++ linters too.
 
 
 ===============================================================================
-clang                                                           *ale-cpp-clang*
+astyle                                                         *ale-cpp-astyle*
 
-g:ale_cpp_clang_executable                         *g:ale_cpp_clang_executable*
-                                                   *b:ale_cpp_clang_executable*
+g:ale_cpp_astyle_executable                       *g:ale_cpp_astyle_executable*
+                                                  *b:ale_cpp_astyle_executable*
   Type: |String|
-  Default: `'clang++'`
+  Default: `'astyle'`
 
-  This variable can be changed to use a different executable for clang.
+  This variable can be changed to use a different executable for astyle.
 
 
-g:ale_cpp_clang_options                               *g:ale_cpp_clang_options*
-                                                      *b:ale_cpp_clang_options*
-  Type: |String|
-  Default: `'-std=c++14 -Wall'`
-
-  This variable can be changed to modify flags given to clang.
-
-
-===============================================================================
-clangd                                                         *ale-cpp-clangd*
-
-g:ale_cpp_clangd_executable                       *g:ale_cpp_clangd_executable*
-                                                  *b:ale_cpp_clangd_executable*
-  Type: |String|
-  Default: `'clangd'`
-
-  This variable can be changed to use a different executable for clangd.
-
-
-g:ale_cpp_clangd_options                             *g:ale_cpp_clangd_options*
-                                                     *b:ale_cpp_clangd_options*
+g:ale_cpp_astyle_project_options             *g:ale_cpp_astyle_project_options*
+                                             *b:ale_cpp_astyle_project_options*
   Type: |String|
   Default: `''`
 
-  This variable can be changed to modify flags given to clangd.
+  This variable can be changed to use an option file for project level
+  configurations. Provide only the filename of the option file that should be
+  present at the project's root directory.
+
+  For example, if .astylrc is specified, the file is searched in the parent
+  directories of the source file's directory.
+
+
+===============================================================================
+cc                                                                 *ale-cpp-cc*
+                                                                  *ale-cpp-gcc*
+                                                                *ale-cpp-clang*
+
+g:ale_cpp_cc_executable                               *g:ale_cpp_cc_executable*
+                                                      *b:ale_cpp_cc_executable*
+  Type: |String|
+  Default: `'<auto>'`
+
+  This variable can be changed to use a different executable for a C++ compiler.
+
+  ALE will try to use `clang++` if Clang is available, otherwise ALE will
+  default to checking C++ code with `gcc`.
+
+
+g:ale_cpp_cc_options                                     *g:ale_cpp_cc_options*
+                                                         *b:ale_cpp_cc_options*
+  Type: |String|
+  Default: `'-std=c++14 -Wall'`
+
+  This variable can be change to modify flags given to the C++ compiler.
+
+
+===============================================================================
+ccls                                                             *ale-cpp-ccls*
+
+g:ale_cpp_ccls_executable                           *g:ale_cpp_ccls_executable*
+                                                    *b:ale_cpp_ccls_executable*
+  Type: |String|
+  Default: `'ccls'`
+
+  This variable can be changed to use a different executable for ccls.
+
+
+g:ale_cpp_ccls_init_options                       *g:ale_cpp_ccls_init_options*
+                                                  *b:ale_cpp_ccls_init_options*
+  Type: |Dictionary|
+  Default: `{}`
+
+  This variable can be changed to customize ccls initialization options.
+  Example: >
+      {
+    \   'cacheDirectory': '/tmp/ccls',
+    \   'cacheFormat': 'binary',
+    \   'diagnostics': {
+    \     'onOpen': 0,
+    \     'opChange': 1000,
+    \   },
+    \ }
+<
+  Visit https://github.com/MaskRay/ccls/wiki/Initialization-options for all
+  available options and explanations.
 
 
 ===============================================================================
@@ -82,6 +127,25 @@ g:ale_cpp_clangcheck_options                     *g:ale_cpp_clangcheck_options*
   option.
 
 
+===============================================================================
+clangd                                                         *ale-cpp-clangd*
+
+g:ale_cpp_clangd_executable                       *g:ale_cpp_clangd_executable*
+                                                  *b:ale_cpp_clangd_executable*
+  Type: |String|
+  Default: `'clangd'`
+
+  This variable can be changed to use a different executable for clangd.
+
+
+g:ale_cpp_clangd_options                             *g:ale_cpp_clangd_options*
+                                                     *b:ale_cpp_clangd_options*
+  Type: |String|
+  Default: `''`
+
+  This variable can be changed to modify flags given to clangd.
+
+
 ===============================================================================
 clang-format                                              *ale-cpp-clangformat*
 
@@ -271,61 +335,11 @@ g:ale_cpp_flawfinder_options                             *g:ale-cpp-flawfinder*
   This variable can be used to pass extra options into the flawfinder command.
 
 
-===============================================================================
-gcc                                                               *ale-cpp-gcc*
-
-g:ale_cpp_gcc_executable                             *g:ale_cpp_gcc_executable*
-                                                     *b:ale_cpp_gcc_executable*
-  Type: |String|
-  Default: `'gcc'`
-
-  This variable can be changed to use a different executable for gcc.
-
-
-g:ale_cpp_gcc_options                                   *g:ale_cpp_gcc_options*
-                                                        *b:ale_cpp_gcc_options*
-  Type: |String|
-  Default: `'-std=c++14 -Wall'`
-
-  This variable can be changed to modify flags given to gcc.
-
-
 ===============================================================================
 uncrustify                                                 *ale-cpp-uncrustify*
 
 See |ale-c-uncrustify| for information about the available options.
 
 
-===============================================================================
-ccls                                                             *ale-cpp-ccls*
-
-g:ale_cpp_ccls_executable                           *g:ale_cpp_ccls_executable*
-                                                    *b:ale_cpp_ccls_executable*
-  Type: |String|
-  Default: `'ccls'`
-
-  This variable can be changed to use a different executable for ccls.
-
-
-g:ale_cpp_ccls_init_options                       *g:ale_cpp_ccls_init_options*
-                                                  *b:ale_cpp_ccls_init_options*
-  Type: |Dictionary|
-  Default: `{}`
-
-  This variable can be changed to customize ccls initialization options.
-  Example: >
-      {
-    \   'cacheDirectory': '/tmp/ccls',
-    \   'cacheFormat': 'binary',
-    \   'diagnostics': {
-    \     'onOpen': 0,
-    \     'opChange': 1000,
-    \   },
-    \ }
-<
-  Visit https://github.com/MaskRay/ccls/wiki/Initialization-options for all
-  available options and explanations.
-
-
 ===============================================================================
   vim:tw=78:ts=2:sts=2:sw=2:ft=help:norl: