Remove deprecated code for the 2.0 release

This reverts commit 1565859eae.

.gitattributes

@@ -2,6 +2,7 @@
 /CODE_OF_CONDUCT.md export-ignore
 /CONTRIBUTING.md export-ignore
 /Dockerfile export-ignore
+/ISSUE_TEMPLATE export-ignore
 /ISSUE_TEMPLATE.md export-ignore
 /Makefile export-ignore
 /PULL_REQUEST_TEMPLATE.md export-ignore

.github/ISSUE_TEMPLATE/report-a-bug.md

@@ -0,0 +1,40 @@
+---
+name: Report a bug
+about: Report a bug with ALE.
+
+---
+
+<!--
+  This is the template for reporting ALE bugs. Make sure you try updating ALE
+  to a more recent version before reporting a bug. Look through existing bug
+  reports for similar issues before reporting a new one. Don't leave comments
+  about new bugs in the comment section for old issues.
+
+  Make sure to try disabling other plugins and trying to repeat your bug before
+  reporting it in ALE. Some times problems can arise when two plugins are used
+  together, but often your issues might be problems with other plugins.
+-->
+
+## Information
+
+**VIM version**
+
+<!-- Paste just the first two lines of :version here. -->
+
+Operating System: <!-- Describe your operating system version. -->
+
+### :ALEInfo
+
+<!-- Paste the output of :ALEInfo here. Try :ALEInfoToClipboard -->
+<!-- Make sure to run :ALEInfo from the buffer where the bug occurred. -->
+
+## What went wrong
+
+<!-- Describe what went wrong here. -->
+
+## Reproducing the bug
+
+<!-- Write a list of steps below. -->
+
+1. I did this.
+2. Then this happened.

.github/ISSUE_TEMPLATE/suggest-a-new-linter-or-fixer.md

@@ -0,0 +1,20 @@
+---
+name: Suggest a new linter or fixer
+about: Suggest a new tool ALE can officially integrate with.
+
+---
+
+<!--
+  Write "Add support for foobar" as the issue title, or similar.
+
+  Fill out the details below.
+-->
+
+**Name:** foobar
+**URL:** https://foo.bar.com
+
+<!--
+  Write a description of the tool, and add any other information you think might
+  be helpful. Consider creating a pull request to add support for the tool
+  yourself.
+-->

.github/ISSUE_TEMPLATE/suggest-an-improvement.md

@@ -0,0 +1,7 @@
+---
+name: Suggest an improvement
+about: Suggest some way to improve ALE, or add a new feature.
+
+---
+
+<!-- There's no fixed format for feature requests. Just add your thoughts. -->

.gitignore

@@ -1,6 +1,7 @@
-/init.vim
-/doc/tags
-.*
 !.editorconfig
 *.obj
+.*
+/doc/tags
+/init.vim
+/test/ale-info-test-file
 tags

.travis.yml

@@ -2,6 +2,6 @@
 sudo: required
 services:
     - docker
-language: python
+language: generic
 script: |
-    ./run-tests
+    ./run-tests -v

CONTRIBUTING.md

@@ -1,37 +1,11 @@
-# Contributing to ALE
-
-1. [Guidelines](#guidelines)
-2. [Creating Issues](#issues)
-3. [Creating Pull Requests](#pull-requests)
-    1. [Adding a New Linter](#adding-a-new-linter)
-    2. [Adding New Options](#adding-new-options)
-4. [Writing Documentation](#writing-documentation)
-    1. [Documenting New Linters](#documenting-new-linters)
-    2. [Editing the Online Documentation](#editing-online-documentation)
-    3. [Documenting Linter Options](#documenting-linter-options)
-5. [In Case of Busses](#in-case-of-busses)
-
-<a name="guidelines"></a>
-
-## 1. Guidelines
+## Guidelines
 
 Have fun, and work on whatever floats your boat. Take It Easy :tm:.
 
-Don't forget to **write documentation** for whatever it is you are doing.
-See the ["Writing Documentation"](#writing-documentation) section.
+For help with contributing to ALE, see `:help ale-development` in Vim, or view
+the help file online [here](/w0rp/ale/blob/master/doc/ale-development.txt).
 
-Remember to write Vader tests for most of the code you write. You can look at
-existing Vader tests in the `test` directory for examples.
-
-When writing code, follow the [Google Vimscript Style
-Guide](https://google.github.io/styleguide/vimscriptguide.xml), and run `vint
--s` on your files to check for most of what the guide mentions and more. If you
-install this plugin (ALE) and install [Vint](https://github.com/Kuniwak/vint), it
-will check your code while you type.
-
-<a name="issues"></a>
-
-## 2. Creating Issues
+## Creating Issues
 
 Before creating any issues, please look through the current list of issues and
 pull requests, and ensure that the issue hasn't already been reported. If an
@@ -49,125 +23,3 @@ operating system, or any other information you think might be helpful.
 Please describe your issue in clear, grammatically correct, and easy to
 understand English. You are more likely to see an issue resolved if others
 can understand you.
-
-<a name="pull-requests"></a>
-
-## 3. Creating Pull Requests
-
-For code you write, make sure to credit yourself at the top of files you add,
-and probably those you modify. You can write some comments at the top of your
-VIM files.
-
-```vim
-" Author: John Smith <john.smith@gmail.com>
-" Description: This file adds support for awesomelinter for the best language ever.
-```
-
-If you want to credit multiple authors, you can comma separate them.
-
-```vim
-" Author: John Smith <john.smith@gmail.com>, Jane Doe <https://jane-doe.info>
-```
-
-<a name="adding-a-new-linter"></a>
-
-### 3.i. Adding a New Linter
-
-If you add a new linter, look for existing handlers first in the
-[handlers](autoload/ale/handlers) directory. One of the handlers there may
-already be able to handle your lines of output. If you find that your new
-linter replicates an existing error handler, consider pulling it up into the
-[handlers](autoload/ale/handlers) directory, and use the generic handler in
-both places.
-
-When you add a linter, make sure the language for the linter and the linter
-itself are present in the table in the [README.md](README.md) file and in the
-Vim [help file](doc/ale.txt). The programs and linters should be sorted
-alphabetically in the table and list.
-
-<a name="adding-new-options"></a>
-
-### 3.ii. Adding New Options
-
-If you add new options to the plugin, make sure to document those new options
-in the [README.md](README.md) file, and also in the [help file](doc/ale.txt).
-Follow the format of other options in each. Global options should appear in the
-README file, and in the relevant section in the help file. Options specific
-to a particular linter should appear in the section for that linter.
-
-Linter options for customizing general argument lists should be named
-`g:ale_<filetype>_<linter>_options`, so that all linters can have similar
-global variable names.
-
-Any options for linters should be set to some default value so it is always
-easy to see what the default is with `:echo g:ale...`.
-
-<a name="writing-documentation"></a>
-
-## 4. Writing Documentation
-
-If you are adding new linters, changing the API, adding new options, etc., you
-_must_ write some documentation describing it in the `doc/ale.txt` file.  New
-linters _must_ be added to the `README.md` file too, so other users can get a
-quick overview of the supported tools.
-
-<a name="documenting-new-linters"></a>
-
-### 4.i Documenting New Linters
-
-If you add a new linter to the project, edit the table in the `README.md` file,
-and edit the list of linters at the top of the `doc/ale.txt` file. The linters
-should be sorted vertically in lexicographic (alphabetical) order by the
-programming language name or filetype, and the tools for each language should
-be sorted in lexicographic order horizontally. Sorting in this manner is a fair
-manner of presenting all of the information in an easy to scan way, without
-giving some unfair preference to any particular tool or language.
-
-<a name="editing-online-documentation"></a>
-
-### 4.ii Editing the Online Documentation
-
-The "online documentation" file used for this project lives in `doc/ale.txt`.
-This is the file used for generating `:help` text inside Vim itself. There are
-some guidelines to follow for this file.
-
-1. Keep all text within a column size of 79 characters, inclusive.
-2. Open a section with 79 `=` or `-` characters, for headings and subheadings.
-3. Sections should have a _single_ blank line before or after.
-4. Between descriptions of variables/functions/commands, use _two_ blank lines.
-5. Up-indent the description of a variable/function/command by two spaces.
-6. Place tags at the ends of lines, with the final characters on column 79.
-   All of the tags should line up perfectly on the same column as you scan
-   down through the document.
-7. Keep the table of contents balanced so the longest tag link ends on column
-   79, and so all links line up perfectly on their first character, on the
-   left.
-
-<a name="documenting-linter-options"></a>
-
-### 4.iii Documenting Linter Options
-
-For documenting new linter options, please add a new sub-section under the
-"Linter Specific Options" section describing all of the global options added
-for each linter, and what the default values of the options are. All global
-options for linters should be set to some default value. This will allow users
-to look up the default value easily by typing `:echo g:ale_...`.
-
-<a name="in-case-of-busses"></a>
-
-## 5. In Case of Busses
-
-Should the principal author of the ALE project and all collaborators with the
-required access needed to properly administrate the project on GitHub or any
-other website either perish or disappear, whether by tragic traffic accident
-or government abduction, etc., action should be taken to ensure that the
-project continues. If no one is left to administer the project where it is
-hosted, please fork the project and nominate someone capable to administer it.
-Preferably, in such an event, a single fork of the project will replace the
-original, and life will go on, except the life of whoever vanished, because
-then they will probably be dead.
-
-Should w0rp suddenly disappear, then he was probably killed in a traffic
-accident, or the government finally decided to kill him and make it look like
-suicide. In the latter event, please subvert said government and restore
-order to the universe, and ensure peace for mankind.

Dockerfile

@@ -1,7 +1,8 @@
 FROM tweekmonster/vim-testbed:latest
 
 RUN install_vim -tag v8.0.0027 -build \
-                -tag neovim:v0.1.7 -build
+                -tag neovim:v0.2.0 -build \
+                -tag neovim:v0.3.0 -build
 
 ENV PACKAGES="\
     bash \
@@ -12,7 +13,7 @@ ENV PACKAGES="\
 RUN apk --update add $PACKAGES && \
     rm -rf /var/cache/apk/* /tmp/* /var/tmp/*
 
-RUN pip install vim-vint==0.3.9
+RUN pip install vim-vint==0.3.15
 
 RUN git clone https://github.com/junegunn/vader.vim vader && \
     cd vader && git checkout c6243dd81c98350df4dec608fa972df98fa2a3af

ISSUE_TEMPLATE.md

@@ -1,28 +0,0 @@
-<!--
-    This is a template for bug reports. If you want to request a new feature,
-    you can clear this entire form field and write a short description of what
-    you want.
--->
-
-## Information
-
-**VIM version**
-
-PASTE JUST THE FIRST TWO LINES OF `:version` HERE.
-
-Operating System: WHAT OS WERE YOU USING?
-
-### :ALEInfo
-
-PASTE OUTPUT OF `:ALEInfo` HERE. YOU CAN TRY `:ALEInfoToClipboard`.
-
-## What went wrong
-
-WRITE WHAT WENT WRONG HERE.
-
-## Reproducing the bug
-
-Steps for repeating the bug:
-
-1. Write a list of steps.
-2. Otherwise nobody will fix the bug.

PULL_REQUEST_TEMPLATE.md

@@ -1,21 +1,8 @@
 <!--
-READ THIS: Before creating a pull request, please consider the following first.
+Before creating a pull request, do the following.
 
-* The most important thing you can do is write tests. Code without tests
-  probably doesn't work, and will almost certainly stop working later on. Pull
-  requests without tests probably won't be accepted, although there are some
-  exceptions.
 * Read the Contributing guide linked above first.
-* If you are adding a new linter, remember to update the README.md file and
-  doc/ale.txt first.
-* If you add or modify a function for converting error lines into loclist items
-  that ALE can work with, please add Vader tests for them. Look at existing
-  tests in the test/handler directory, etc.
-* If you add or modify a function for computing a command line string for
-  running a command, please add Vader tests for that.
-* Generally try and cover anything with Vader tests, although some things just
-  can't be tested with Vader, or at least they can be hard to test. Consider
-  breaking up your code so that some parts can be tested, and generally open up
-  a discussion about it.
-* Have fun!
+* Read the documentation that comes with ALE with `:help ale-development`.
+
+Have fun!
 -->

README.md

@@ -4,7 +4,7 @@
 ![ALE Logo by Mark Grealish - https://www.bhalash.com/](img/logo.jpg?raw=true)
 
 ALE (Asynchronous Lint Engine) is a plugin for providing linting in NeoVim
-and Vim 8 while you edit your text files.
+0.2.0+ and Vim 8 while you edit your text files.
 
 ![linting example](img/example.gif?raw=true)
 
@@ -16,8 +16,22 @@ back to a filesystem.
 
 In other words, this plugin allows you to lint while you type.
 
-In addition to linting support, ALE offers some support for fixing code with
-formatting tools, and some Language Server Protocol and `tsserver` features.
+ALE offers support for fixing code with command line tools in a non-blocking
+manner with the `:ALEFix` feature, supporting tools in many languages, like
+`prettier`, `eslint`, `autopep8`, and more.
+
+ALE acts as a "language client" to support a variety of Language Server Protocol
+features, including:
+
+* Diagnostics (via Language Server Protocol linters)
+* Go To Definition (`:ALEGoToDefinition`)
+* Completion (`let g:ale_completion_enabled = 1`)
+* Finding references (`:ALEFindReferences`)
+* Hover information (`:ALEHover`)
+
+If you don't care about Language Server Protocol, ALE won't load any of the code
+for working with it unless needed. One of ALE's general missions is that you
+won't pay for the features that you don't use.
 
 ## Table of Contents
 
@@ -27,6 +41,8 @@ formatting tools, and some Language Server Protocol and `tsserver` features.
     2. [Fixing](#usage-fixing)
     3. [Completion](#usage-completion)
     4. [Go To Definition](#usage-go-to-definition)
+    5. [Find References](#usage-find-references)
+    6. [Hovering](#usage-hover)
 3. [Installation](#installation)
     1. [Installation with Vim package management](#standard-installation)
     2. [Installation with Pathogen](#installation-with-pathogen)
@@ -78,24 +94,26 @@ formatting.
 | API Blueprint | [drafter](https://github.com/apiaryio/drafter) |
 | AsciiDoc | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [redpen](http://redpen.cc/), [write-good](https://github.com/btford/write-good) |
 | Awk | [gawk](https://www.gnu.org/software/gawk/)|
-| Bash | shell [-n flag](https://www.gnu.org/software/bash/manual/bash.html#index-set), [shellcheck](https://www.shellcheck.net/), [shfmt](https://github.com/mvdan/sh) |
+| Bash | [language-server](https://github.com/mads-hartmann/bash-language-server), shell [-n flag](https://www.gnu.org/software/bash/manual/bash.html#index-set), [shellcheck](https://www.shellcheck.net/), [shfmt](https://github.com/mvdan/sh) |
 | Bourne Shell | shell [-n flag](http://linux.die.net/man/1/sh), [shellcheck](https://www.shellcheck.net/), [shfmt](https://github.com/mvdan/sh) |
 | C | [cppcheck](http://cppcheck.sourceforge.net), [cpplint](https://github.com/google/styleguide/tree/gh-pages/cpplint), [clang](http://clang.llvm.org/), [clangtidy](http://clang.llvm.org/extra/clang-tidy/) !!, [clang-format](https://clang.llvm.org/docs/ClangFormat.html), [flawfinder](https://www.dwheeler.com/flawfinder/), [gcc](https://gcc.gnu.org/) |
-| C++ (filetype cpp) | [clang](http://clang.llvm.org/), [clangcheck](http://clang.llvm.org/docs/ClangCheck.html) !!, [clangtidy](http://clang.llvm.org/extra/clang-tidy/) !!, [clang-format](https://clang.llvm.org/docs/ClangFormat.html), [cppcheck](http://cppcheck.sourceforge.net), [cpplint](https://github.com/google/styleguide/tree/gh-pages/cpplint) !!, [flawfinder](https://www.dwheeler.com/flawfinder/), [gcc](https://gcc.gnu.org/) |
+| C++ (filetype cpp) | [clang](http://clang.llvm.org/), [clangcheck](http://clang.llvm.org/docs/ClangCheck.html) !!, [clangtidy](http://clang.llvm.org/extra/clang-tidy/) !!, [clang-format](https://clang.llvm.org/docs/ClangFormat.html), [cppcheck](http://cppcheck.sourceforge.net), [cpplint](https://github.com/google/styleguide/tree/gh-pages/cpplint) !!, [cquery](https://github.com/cquery-project/cquery), [flawfinder](https://www.dwheeler.com/flawfinder/), [gcc](https://gcc.gnu.org/) |
 | CUDA | [nvcc](http://docs.nvidia.com/cuda/cuda-compiler-driver-nvcc/index.html) |
 | C# | [mcs](http://www.mono-project.com/docs/about-mono/languages/csharp/) see:`help ale-cs-mcs` for details, [mcsc](http://www.mono-project.com/docs/about-mono/languages/csharp/) !! see:`help ale-cs-mcsc` for details and configuration|
 | Chef | [foodcritic](http://www.foodcritic.io/) |
 | Clojure | [joker](https://github.com/candid82/joker) |
+| CloudFormation | [cfn-python-lint](https://github.com/awslabs/cfn-python-lint) |
 | CMake | [cmakelint](https://github.com/richq/cmake-lint) |
 | CoffeeScript | [coffee](http://coffeescript.org/), [coffeelint](https://www.npmjs.com/package/coffeelint) |
 | Crystal | [crystal](https://crystal-lang.org/) !! |
 | CSS | [csslint](http://csslint.net/), [prettier](https://github.com/prettier/prettier), [stylelint](https://github.com/stylelint/stylelint) |
+| Cucumber | [cucumber](https://cucumber.io/) |
 | Cython (pyrex filetype) | [cython](http://cython.org/) |
 | D | [dmd](https://dlang.org/dmd-linux.html) |
 | Dafny | [dafny](https://rise4fun.com/Dafny) !! |
-| Dart | [dartanalyzer](https://github.com/dart-lang/sdk/tree/master/pkg/analyzer_cli) !!, [language_server](https://github.com/natebosch/dart_language_server) |
+| Dart | [dartanalyzer](https://github.com/dart-lang/sdk/tree/master/pkg/analyzer_cli) !!, [language_server](https://github.com/natebosch/dart_language_server), [dartfmt](https://github.com/dart-lang/sdk/tree/master/utils/dartfmt) |
 | Dockerfile | [hadolint](https://github.com/hadolint/hadolint) |
-| Elixir | [credo](https://github.com/rrrene/credo), [dialyxir](https://github.com/jeremyjh/dialyxir), [dogma](https://github.com/lpil/dogma) !!|
+| Elixir | [credo](https://github.com/rrrene/credo), [dialyxir](https://github.com/jeremyjh/dialyxir), [dogma](https://github.com/lpil/dogma), [mix](https://hexdocs.pm/mix/Mix.html) !!|
 | Elm | [elm-format](https://github.com/avh4/elm-format), [elm-make](https://github.com/elm-lang/elm-make) |
 | Erb | [erb](https://apidock.com/ruby/ERB), [erubi](https://github.com/jeremyevans/erubi), [erubis](https://github.com/kwatch/erubis) |
 | Erlang | [erlc](http://erlang.org/doc/man/erlc.html), [SyntaxErl](https://github.com/ten0s/syntaxerl) |
@@ -112,8 +130,8 @@ formatting.
 | Haskell | [brittany](https://github.com/lspitzner/brittany), [ghc](https://www.haskell.org/ghc/), [stack-ghc](https://haskellstack.org/), [stack-build](https://haskellstack.org/) !!, [ghc-mod](https://github.com/DanielG/ghc-mod), [stack-ghc-mod](https://github.com/DanielG/ghc-mod), [hlint](https://hackage.haskell.org/package/hlint), [hdevtools](https://hackage.haskell.org/package/hdevtools), [hfmt](https://github.com/danstiner/hfmt) |
 | HTML | [alex](https://github.com/wooorm/alex) !!, [HTMLHint](http://htmlhint.com/), [proselint](http://proselint.com/), [tidy](http://www.html-tidy.org/), [write-good](https://github.com/btford/write-good) |
 | Idris | [idris](http://www.idris-lang.org/) |
-| Java | [checkstyle](http://checkstyle.sourceforge.net), [javac](http://www.oracle.com/technetwork/java/javase/downloads/index.html), [google-java-format](https://github.com/google/google-java-format) |
-| JavaScript | [eslint](http://eslint.org/), [flow](https://flowtype.org/), [jscs](http://jscs.info/), [jshint](http://jshint.com/), [prettier](https://github.com/prettier/prettier), [prettier-eslint](https://github.com/prettier/prettier-eslint), [prettier-standard](https://github.com/sheerun/prettier-standard), [standard](http://standardjs.com/), [xo](https://github.com/sindresorhus/xo)
+| Java | [checkstyle](http://checkstyle.sourceforge.net), [javac](http://www.oracle.com/technetwork/java/javase/downloads/index.html), [google-java-format](https://github.com/google/google-java-format), [PMD](https://pmd.github.io/) |
+| JavaScript | [eslint](http://eslint.org/), [flow](https://flowtype.org/), [jscs](http://jscs.info/), [jshint](http://jshint.com/), [prettier](https://github.com/prettier/prettier), [prettier-eslint](https://github.com/prettier/prettier-eslint-cli), [prettier-standard](https://github.com/sheerun/prettier-standard), [standard](http://standardjs.com/), [xo](https://github.com/sindresorhus/xo)
 | JSON | [fixjson](https://github.com/rhysd/fixjson), [jsonlint](http://zaa.ch/jsonlint/), [jq](https://stedolan.github.io/jq/), [prettier](https://github.com/prettier/prettier) |
 | Kotlin | [kotlinc](https://kotlinlang.org) !!, [ktlint](https://ktlint.github.io) !! see `:help ale-integration-kotlin` for configuration instructions |
 | LaTeX | [alex](https://github.com/wooorm/alex) !!, [chktex](http://www.nongnu.org/chktex/), [lacheck](https://www.ctan.org/pkg/lacheck), [proselint](http://proselint.com/), [redpen](http://redpen.cc/), [vale](https://github.com/ValeLint/vale), [write-good](https://github.com/btford/write-good) |
@@ -124,13 +142,15 @@ formatting.
 | Make | [checkmake](https://github.com/mrtazz/checkmake) |
 | Markdown | [alex](https://github.com/wooorm/alex) !!, [markdownlint](https://github.com/DavidAnson/markdownlint) !!, [mdl](https://github.com/mivok/markdownlint), [prettier](https://github.com/prettier/prettier), [proselint](http://proselint.com/), [redpen](http://redpen.cc/), [remark-lint](https://github.com/wooorm/remark-lint) !!, [textlint](https://textlint.github.io/), [vale](https://github.com/ValeLint/vale), [write-good](https://github.com/btford/write-good) |
 | MATLAB | [mlint](https://www.mathworks.com/help/matlab/ref/mlint.html) |
+| Mercury | [mmc](http://mercurylang.org) !! |
+| NASM | [nasm](https://www.nasm.us/) !! |
 | Nim | [nim check](https://nim-lang.org/docs/nimc.html) !! |
 | nix | [nix-instantiate](http://nixos.org/nix/manual/#sec-nix-instantiate) |
 | nroff | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [write-good](https://github.com/btford/write-good)|
 | Objective-C | [clang](http://clang.llvm.org/) |
 | Objective-C++ | [clang](http://clang.llvm.org/) |
 | OCaml | [merlin](https://github.com/the-lambda-church/merlin) see `:help ale-ocaml-merlin` for configuration instructions, [ols](https://github.com/freebroccolo/ocaml-language-server) |
-| Perl | [perl -c](https://perl.org/), [perl-critic](https://metacpan.org/pod/Perl::Critic) |
+| Perl | [perl -c](https://perl.org/), [perl-critic](https://metacpan.org/pod/Perl::Critic), [perltidy](https://metacpan.org/pod/distribution/Perl-Tidy/bin/perltidy) |
 | PHP | [hack](http://hacklang.org/), [hackfmt](https://github.com/facebook/flow/tree/master/hack/hackfmt), [langserver](https://github.com/felixfbecker/php-language-server), [phan](https://github.com/phan/phan) see `:help ale-php-phan` to instructions, [php -l](https://secure.php.net/), [phpcs](https://github.com/squizlabs/PHP_CodeSniffer), [phpmd](https://phpmd.org), [phpstan](https://github.com/phpstan/phpstan), [phpcbf](https://github.com/squizlabs/PHP_CodeSniffer), [php-cs-fixer](http://cs.sensiolabs.org/) |
 | PO | [alex](https://github.com/wooorm/alex) !!, [msgfmt](https://www.gnu.org/software/gettext/manual/html_node/msgfmt-Invocation.html), [proselint](http://proselint.com/), [write-good](https://github.com/btford/write-good) |
 | Pod | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [write-good](https://github.com/btford/write-good) |
@@ -138,8 +158,8 @@ formatting.
 | proto | [protoc-gen-lint](https://github.com/ckaznocha/protoc-gen-lint) |
 | Pug | [pug-lint](https://github.com/pugjs/pug-lint) |
 | Puppet | [puppet](https://puppet.com), [puppet-lint](https://puppet-lint.com) |
-| Python | [autopep8](https://github.com/hhatto/autopep8), [flake8](http://flake8.pycqa.org/en/latest/), [isort](https://github.com/timothycrosley/isort), [mypy](http://mypy-lang.org/), [prospector](http://github.com/landscapeio/prospector), [pycodestyle](https://github.com/PyCQA/pycodestyle), [pyls](https://github.com/palantir/python-language-server), [pylint](https://www.pylint.org/) !!, [yapf](https://github.com/google/yapf) |
-| QML | [qmllint](https://github.com/qt/qtdeclarative/tree/5.11/tools/qmllint) |
+| Python | [autopep8](https://github.com/hhatto/autopep8), [black](https://github.com/ambv/black), [flake8](http://flake8.pycqa.org/en/latest/), [isort](https://github.com/timothycrosley/isort), [mypy](http://mypy-lang.org/), [prospector](http://github.com/landscapeio/prospector), [pycodestyle](https://github.com/PyCQA/pycodestyle), [pyls](https://github.com/palantir/python-language-server), [pyre](https://github.com/facebook/pyre-check), [pylint](https://www.pylint.org/) !!, [yapf](https://github.com/google/yapf) |
+| QML | [qmlfmt](https://github.com/jesperhh/qmlfmt), [qmllint](https://github.com/qt/qtdeclarative/tree/5.11/tools/qmllint) |
 | R | [lintr](https://github.com/jimhester/lintr) |
 | ReasonML | [merlin](https://github.com/the-lambda-church/merlin) see `:help ale-reasonml-ols` for configuration instructions, [ols](https://github.com/freebroccolo/ocaml-language-server), [refmt](https://github.com/reasonml/reason-cli) |
 | reStructuredText | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [redpen](http://redpen.cc/), [rstcheck](https://github.com/myint/rstcheck), [vale](https://github.com/ValeLint/vale), [write-good](https://github.com/btford/write-good) |
@@ -149,7 +169,7 @@ formatting.
 | Rust |  cargo !! (see `:help ale-integration-rust` for configuration instructions), [rls](https://github.com/rust-lang-nursery/rls), [rustc](https://www.rust-lang.org/), [rustfmt](https://github.com/rust-lang-nursery/rustfmt) |
 | SASS | [sass-lint](https://www.npmjs.com/package/sass-lint), [stylelint](https://github.com/stylelint/stylelint) |
 | SCSS | [prettier](https://github.com/prettier/prettier), [sass-lint](https://www.npmjs.com/package/sass-lint), [scss-lint](https://github.com/brigade/scss-lint), [stylelint](https://github.com/stylelint/stylelint) |
-| Scala | [scalac](http://scala-lang.org), [scalastyle](http://www.scalastyle.org) |
+| Scala | [fsc](https://www.scala-lang.org/old/sites/default/files/linuxsoft_archives/docu/files/tools/fsc.html), [scalac](http://scala-lang.org), [scalafmt](https://scalameta.org/scalafmt/), [scalastyle](http://www.scalastyle.org) |
 | Slim | [slim-lint](https://github.com/sds/slim-lint) |
 | SML | [smlnj](http://www.smlnj.org/) |
 | Solidity | [solhint](https://github.com/protofire/solhint), [solium](https://github.com/duaraghav8/Solium) |
@@ -195,24 +215,42 @@ ale-linter-options` for options specified to particular linters.
 ### 2.ii Fixing
 
 ALE can fix files with the `ALEFix` command. Functions need to be configured
-for different filetypes with the `g:ale_fixers` variable. For example, the
-following code can be used to fix JavaScript code with ESLint:
+either in each buffer with a `b:ale_fixers`, or globally with `g:ale_fixers`.
+
+The recommended way to configure fixers is to define a List in an ftplugin file.
 
 ```vim
-" Put this in vimrc or a plugin file of your own.
-" After this is configured, :ALEFix will try and fix your JS code with ESLint.
+" In ~/.vim/ftplugin/javascript.vim, or somewhere similar.
+
+" Fix files with prettier, and then ESLint.
+let b:ale_fixers = ['prettier', 'eslint']
+" Equivalent to the above.
+let b:ale_fixers = {'javascript': ['prettier', 'eslint']}
+```
+
+You can also configure your fixers from vimrc using `g:ale_fixers`, before
+or after ALE has been loaded.
+
+```vim
+" In ~/.vim/vimrc, or somewhere similar.
 let g:ale_fixers = {
 \   'javascript': ['eslint'],
 \}
+```
 
-" Set this setting in vimrc if you want to fix files automatically on save.
-" This is off by default.
+If you want to automatically fix files when you save them, you need to turn
+a setting on in vimrc.
+
+```vim
+" Set this variable to 1 to fix files when you save them.
 let g:ale_fix_on_save = 1
 ```
 
-The `:ALEFixSuggest` command will suggest some supported tools for fixing code,
-but fixers can be also implemented with functions, including lambda functions
-too. See `:help ale-fix` for detailed information.
+The `:ALEFixSuggest` command will suggest some supported tools for fixing code.
+Both `g:ale_fixers` and `b:ale_fixers` can also accept functions, including
+lambda functions, as fixers, for fixing files with custom tools.
+
+See `:help ale-fix` for complete information on how to fix files with ALE.
 
 <a name="usage-completion"></a>
 
@@ -220,9 +258,7 @@ too. See `:help ale-fix` for detailed information.
 
 ALE offers some support for completion via hijacking of omnicompletion while you
 type. All of ALE's completion information must come from Language Server
-Protocol linters, or similar protocols. At the moment, completion is only
-supported for TypeScript code with `tsserver`, when `tsserver` is enabled. You
-can enable completion like so:
+Protocol linters, or from `tsserver` for TypeScript.
 
 ```vim
 " Enable completion where available.
@@ -236,10 +272,34 @@ See `:help ale-completion` for more information.
 ### 2.iv Go To Definition
 
 ALE supports jumping to the definition of words under your cursor with the
-`:ALEGoToDefinition` command using any enabled LSP linters and `tsserver`.
+`:ALEGoToDefinition` command using any enabled Language Server Protocol linters
+and `tsserver`.
 
 See `:help ale-go-to-definition` for more information.
 
+<a name="usage-find-references"></a>
+
+### 2.v Find References
+
+ALE supports finding references for words under your cursor with the
+`:ALEFindReferences` command using any enabled Language Server Protocol linters
+and `tsserver`.
+
+See `:help ale-find-references` for more information.
+
+<a name="usage-hover"></a>
+
+### 2.vi Hovering
+
+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.
+
+On vim/gvim with `balloon` support you can see the information in a tooltip
+that appears under the mouse when you mouseover a symbol.
+
+See `:help ale-hover` for more information.
+
 <a name="installation"></a>
 
 ## 3. Installation
@@ -348,12 +408,28 @@ on Freenode. Web chat is available [here](https://webchat.freenode.net/?channels
 
 ### 5.i. How do I disable particular linters?
 
-By default, all available tools for all supported languages will be run.
-If you want to only select a subset of the tools, simply create a
-`g:ale_linters` dictionary in your vimrc file mapping filetypes
-to lists of linters to run.
+By default, all available tools for all supported languages will be run. If you
+want to only select a subset of the tools, you can define `b:ale_linters` for a
+single buffer, or `g:ale_linters` globally.
+
+The recommended way to configure linters is to define a List in an ftplugin
+file.
 
 ```vim
+" In ~/.vim/ftplugin/javascript.vim, or somewhere similar.
+
+" Enable ESLint only for JavaScript.
+let b:ale_linters = ['eslint']
+
+" Equivalent to the above.
+let b:ale_linters = {'javascript': ['eslint']}
+```
+
+You can also declare which linters you want to run in your vimrc file, before or
+after ALE has been loaded.
+
+```vim
+" In ~/.vim/vimrc, or somewhere similar.
 let g:ale_linters = {
 \   'javascript': ['eslint'],
 \}
@@ -364,6 +440,14 @@ be run for those languages, just as when the dictionary is not defined.
 Running many linters should not typically obstruct editing in Vim,
 as they will all be executed in separate processes simultaneously.
 
+If you don't want ALE to run anything other than what you've explicitly asked
+for, you can set `g:ale_linters_explicit` to `1`.
+
+```vim
+" Only run linters named in ale_linters settings.
+let g:ale_linters_explicit = 1
+```
+
 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.
@@ -482,6 +566,8 @@ There are 3 global options that allow customizing the echoed message.
 
 - `g:ale_echo_msg_format` where:
     * `%s` is the error message itself
+    * `%...code...%` is an optional error code, and most characters can be
+      written between the `%` characters.
     * `%linter%` is the linter name
     * `%severity` is the severity type
 - `g:ale_echo_msg_error_str` is the string used for error severity.
@@ -499,22 +585,28 @@ Will give you:
 
 ![Echoed message](img/echo.png)
 
+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?
 
 ALE runs its own [autocmd](http://vimdoc.sourceforge.net/htmldoc/autocmd.html)
-events when a lint or fix cycle are started and stopped. These events can be
-used to call arbitrary functions before and after ALE stops linting.
+events when a lint or fix cycle are started and stopped. There is also an event
+that runs when a linter job has been successfully started. These events can be
+used to call arbitrary functions during these respective parts of the ALE's
+operation.
 
 ```vim
 augroup YourGroup
     autocmd!
-    autocmd User ALELintPre  call YourFunction()
-    autocmd User ALELintPost call YourFunction()
+    autocmd User ALELintPre    call YourFunction()
+    autocmd User ALELintPost   call YourFunction()
 
-    autocmd User ALEFixPre   call YourFunction()
-    autocmd User ALEFixPost  call YourFunction()
+    autocmd User ALEJobStarted call YourFunction()
+
+    autocmd User ALEFixPre     call YourFunction()
+    autocmd User ALEFixPost    call YourFunction()
 augroup END
 ```
 
@@ -605,9 +697,18 @@ augroup END
 ```
 
 Supposing the filetype has been set correctly, you can set the following
-options in your vimrc file:
+options in a jsx.vim ftplugin file.
 
 ```vim
+" In ~/.vim/ftplugin/jsx.vim, or somewhere similar.
+let b:ale_linters = ['stylelint', 'eslint']
+let b:ale_linter_aliases = ['css']
+```
+
+Or if you want, you can configure the linters from your vimrc file.
+
+```vim
+" In ~/.vim/vimrc, or somewhere similar.
 let g:ale_linters = {'jsx': ['stylelint', 'eslint']}
 let g:ale_linter_aliases = {'jsx': 'css'}
 ```
@@ -653,8 +754,9 @@ ALE cannot easily detect which compiler flags to use.
 
 Some tools and build configurations can generate
 [compile_commands.json](https://clang.llvm.org/docs/JSONCompilationDatabase.html)
-files. The `cppcheck`, `clangcheck` and `clangtidy` linters can read these
-files for automatically determining the appropriate compiler flags to use.
+files. The `cppcheck`, `clangcheck`, `clangtidy` and `cquery` linters can read
+these files for automatically determining the appropriate compiler flags to
+use.
 
 For linting with compilers like `gcc` and `clang`, and with other tools, you
 will need to tell ALE which compiler flags to use yourself. You can use

after/plugin/ale.vim

@@ -1,37 +0,0 @@
-" Author: w0rp <devw0rp@gmail.com>
-" Description: Follow-up checks for the plugin: warn about conflicting plugins.
-
-" A flag for ensuring that this is not run more than one time.
-if exists('g:loaded_ale_after')
-    finish
-endif
-
-" Set the flag so this file is not run more than one time.
-let g:loaded_ale_after = 1
-
-" Check if the flag is available and set to 0 to disable checking for and
-" emitting conflicting plugin warnings.
-if exists('g:ale_emit_conflict_warnings') && !g:ale_emit_conflict_warnings
-    finish
-endif
-
-" Conflicting Plugins Checks
-
-function! s:GetConflictingPluginWarning(plugin_name) abort
-    return 'ALE conflicts with ' . a:plugin_name
-    \   . '. Uninstall it, or disable this warning with '
-    \   . '`let g:ale_emit_conflict_warnings = 0` in your vimrc file, '
-    \   . '*before* plugins are loaded.'
-endfunction
-
-if exists('g:loaded_syntastic_plugin')
-    throw s:GetConflictingPluginWarning('Syntastic')
-endif
-
-if exists('g:loaded_neomake')
-    throw s:GetConflictingPluginWarning('Neomake')
-endif
-
-if exists('g:loaded_validator_plugin')
-    throw s:GetConflictingPluginWarning('Validator')
-endif

ale_linters/c/clang.vim

@@ -8,15 +8,15 @@ function! ale_linters#c#clang#GetExecutable(buffer) abort
     return ale#Var(a:buffer, 'c_clang_executable')
 endfunction
 
-function! ale_linters#c#clang#GetCommand(buffer) abort
-    let l:paths = ale#c#FindLocalHeaderPaths(a:buffer)
+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 ale#Escape(ale_linters#c#clang#GetExecutable(a:buffer))
     \   . ' -S -x c -fsyntax-only '
     \   . '-iquote ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h')) . ' '
-    \   . ale#c#IncludeOptions(l:paths)
+    \   . l:cflags
     \   . ale#Var(a:buffer, 'c_clang_options') . ' -'
 endfunction
 
@@ -24,6 +24,9 @@ call ale#linter#Define('c', {
 \   'name': 'clang',
 \   'output_stream': 'stderr',
 \   'executable_callback': 'ale_linters#c#clang#GetExecutable',
-\   'command_callback': 'ale_linters#c#clang#GetCommand',
+\   'command_chain': [
+\       {'callback': 'ale#c#GetMakeCommand', 'output_stream': 'stdout'},
+\       {'callback': 'ale_linters#c#clang#GetCommand'}
+\   ],
 \   'callback': 'ale#handlers#gcc#HandleGCCFormat',
 \})

ale_linters/c/gcc.vim

@@ -8,15 +8,15 @@ function! ale_linters#c#gcc#GetExecutable(buffer) abort
     return ale#Var(a:buffer, 'c_gcc_executable')
 endfunction
 
-function! ale_linters#c#gcc#GetCommand(buffer) abort
-    let l:paths = ale#c#FindLocalHeaderPaths(a:buffer)
+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.
     return ale#Escape(ale_linters#c#gcc#GetExecutable(a:buffer))
     \   . ' -S -x c -fsyntax-only '
     \   . '-iquote ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h')) . ' '
-    \   . ale#c#IncludeOptions(l:paths)
+    \   . l:cflags
     \   . ale#Var(a:buffer, 'c_gcc_options') . ' -'
 endfunction
 
@@ -24,6 +24,9 @@ call ale#linter#Define('c', {
 \   'name': 'gcc',
 \   'output_stream': 'stderr',
 \   'executable_callback': 'ale_linters#c#gcc#GetExecutable',
-\   'command_callback': 'ale_linters#c#gcc#GetCommand',
+\   'command_chain': [
+\       {'callback': 'ale#c#GetMakeCommand', 'output_stream': 'stdout'},
+\       {'callback': 'ale_linters#c#gcc#GetCommand'}
+\   ],
 \   'callback': 'ale#handlers#gcc#HandleGCCFormat',
 \})

ale_linters/cloudformation/cfn_python_lint.vim

@@ -0,0 +1,35 @@
+" Author: Yasuhiro Kiyota <yasuhiroki.duck@gmail.com>
+" Description: Support cfn-python-lint for AWS Cloudformation template file
+
+function! ale_linters#cloudformation#cfn_python_lint#Handle(buffer, lines) abort
+    " Matches patterns line the following:
+    "
+    " sample.template.yaml:96:7:96:15:E3012:Property Resources/Sample/Properties/FromPort should be of type Integer
+    let l:pattern = '\v^(.*):(\d+):(\d+):(\d+):(\d+):([[:alnum:]]+):(.*)$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        let l:code = l:match[6]
+
+        if ale#path#IsBufferPath(a:buffer, l:match[1])
+            call add(l:output, {
+            \   'lnum': l:match[2],
+            \   'col': l:match[3],
+            \   'end_lnum': l:match[4],
+            \   'end_col': l:match[5],
+            \   'code': l:code,
+            \   'type': l:code[:0] is# 'E' ? 'E' : 'W',
+            \   'text': l:match[7]
+            \})
+        endif
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('cloudformation', {
+\   'name': 'cloudformation',
+\   'executable': 'cfn-lint',
+\   'command': 'cfn-lint --template %t --format parseable',
+\   'callback': 'ale_linters#cloudformation#cfn_python_lint#Handle',
+\})

ale_linters/cpp/clang.vim

@@ -8,15 +8,15 @@ function! ale_linters#cpp#clang#GetExecutable(buffer) abort
     return ale#Var(a:buffer, 'cpp_clang_executable')
 endfunction
 
-function! ale_linters#cpp#clang#GetCommand(buffer) abort
-    let l:paths = ale#c#FindLocalHeaderPaths(a:buffer)
+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 ale#Escape(ale_linters#cpp#clang#GetExecutable(a:buffer))
     \   . ' -S -x c++ -fsyntax-only '
     \   . '-iquote ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h')) . ' '
-    \   . ale#c#IncludeOptions(l:paths)
+    \   . l:cflags
     \   . ale#Var(a:buffer, 'cpp_clang_options') . ' -'
 endfunction
 
@@ -24,6 +24,9 @@ call ale#linter#Define('cpp', {
 \   'name': 'clang',
 \   'output_stream': 'stderr',
 \   'executable_callback': 'ale_linters#cpp#clang#GetExecutable',
-\   'command_callback': 'ale_linters#cpp#clang#GetCommand',
+\   'command_chain': [
+\       {'callback': 'ale#c#GetMakeCommand', 'output_stream': 'stdout'},
+\       {'callback': 'ale_linters#cpp#clang#GetCommand'},
+\   ],
 \   'callback': 'ale#handlers#gcc#HandleGCCFormat',
 \})

ale_linters/cpp/cquery.vim

@@ -0,0 +1,34 @@
+" Author: Ben Falconer <ben@falconers.me.uk>
+" Description: A language server for C++
+
+call ale#Set('cpp_cquery_executable', 'cquery')
+call ale#Set('cpp_cquery_cache_directory', expand('~/.cache/cquery'))
+
+function! ale_linters#cpp#cquery#GetProjectRoot(buffer) abort
+    let l:project_root = ale#path#FindNearestFile(a:buffer, 'compile_commands.json')
+
+    return !empty(l:project_root) ? fnamemodify(l:project_root, ':h') : ''
+endfunction
+
+function! ale_linters#cpp#cquery#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'cpp_cquery_executable')
+endfunction
+
+function! ale_linters#cpp#cquery#GetCommand(buffer) abort
+    let l:executable = ale_linters#cpp#cquery#GetExecutable(a:buffer)
+    return ale#Escape(l:executable)
+endfunction
+
+function! ale_linters#cpp#cquery#GetInitializationOptions(buffer) abort
+    return {'cacheDirectory': ale#Var(a:buffer, 'cpp_cquery_cache_directory')}
+endfunction
+
+call ale#linter#Define('cpp', {
+\   'name': 'cquery',
+\   'lsp': 'stdio',
+\   'executable_callback': 'ale_linters#cpp#cquery#GetExecutable',
+\   'command_callback': 'ale_linters#cpp#cquery#GetCommand',
+\   'project_root_callback': 'ale_linters#cpp#cquery#GetProjectRoot',
+\   'initialization_options_callback': 'ale_linters#cpp#cquery#GetInitializationOptions',
+\   'language': 'cpp',
+\})

ale_linters/cpp/flawfinder.vim

@@ -4,6 +4,7 @@
 call ale#Set('cpp_flawfinder_executable', 'flawfinder')
 call ale#Set('cpp_flawfinder_options', '')
 call ale#Set('cpp_flawfinder_minlevel', 1)
+call ale#Set('c_flawfinder_error_severity', 6)
 
 function! ale_linters#cpp#flawfinder#GetExecutable(buffer) abort
    return ale#Var(a:buffer, 'cpp_flawfinder_executable')

ale_linters/cpp/gcc.vim

@@ -8,22 +8,26 @@ function! ale_linters#cpp#gcc#GetExecutable(buffer) abort
     return ale#Var(a:buffer, 'cpp_gcc_executable')
 endfunction
 
-function! ale_linters#cpp#gcc#GetCommand(buffer) abort
-    let l:paths = ale#c#FindLocalHeaderPaths(a:buffer)
+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.
     return ale#Escape(ale_linters#cpp#gcc#GetExecutable(a:buffer))
     \   . ' -S -x c++ -fsyntax-only '
     \   . '-iquote ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h')) . ' '
-    \   . ale#c#IncludeOptions(l:paths)
+    \   . l:cflags
     \   . ale#Var(a:buffer, 'cpp_gcc_options') . ' -'
 endfunction
 
 call ale#linter#Define('cpp', {
-\   'name': 'g++',
+\   'name': 'gcc',
+\   'aliases': ['g++'],
 \   'output_stream': 'stderr',
 \   'executable_callback': 'ale_linters#cpp#gcc#GetExecutable',
-\   'command_callback': 'ale_linters#cpp#gcc#GetCommand',
+\   'command_chain': [
+\       {'callback': 'ale#c#GetMakeCommand', 'output_stream': 'stdout'},
+\       {'callback': 'ale_linters#cpp#gcc#GetCommand'},
+\   ],
 \   'callback': 'ale#handlers#gcc#HandleGCCFormat',
 \})

ale_linters/css/stylelint.vim

@@ -2,7 +2,7 @@
 
 call ale#Set('css_stylelint_executable', 'stylelint')
 call ale#Set('css_stylelint_options', '')
-call ale#Set('css_stylelint_use_global', 0)
+call ale#Set('css_stylelint_use_global', get(g:, 'ale_use_global_executables', 0))
 
 function! ale_linters#css#stylelint#GetExecutable(buffer) abort
     return ale#node#FindExecutable(a:buffer, 'css_stylelint', [

ale_linters/cucumber/cucumber.vim

@@ -0,0 +1,45 @@
+" Author: Eddie Lebow https://github.com/elebow
+" Description: Cucumber, a BDD test tool
+
+function! ale_linters#cucumber#cucumber#GetCommand(buffer) abort
+    let l:features_dir = ale#path#FindNearestDirectory(a:buffer, 'features')
+
+    if !empty(l:features_dir)
+        let l:features_arg = '-r ' . ale#Escape(l:features_dir)
+    else
+        let l:features_arg = ''
+    endif
+
+    return 'cucumber --dry-run --quiet --strict --format=json '
+    \   . l:features_arg . ' %t'
+endfunction
+
+function! ale_linters#cucumber#cucumber#Handle(buffer, lines) abort
+    try
+        let l:json = ale#util#FuzzyJSONDecode(a:lines, {})[0]
+    catch
+        return []
+    endtry
+
+    let l:output = []
+    for l:element in get(l:json, 'elements', [])
+        for l:step in l:element['steps']
+            if l:step['result']['status'] is# 'undefined'
+                call add(l:output, {
+                \   'lnum': l:step['line'],
+                \   'code': 'E',
+                \   'text': 'Undefined step'
+                \})
+            endif
+        endfor
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('cucumber', {
+\   'name': 'cucumber',
+\   'executable': 'cucumber',
+\   'command_callback': 'ale_linters#cucumber#cucumber#GetCommand',
+\   'callback': 'ale_linters#cucumber#cucumber#Handle'
+\})

ale_linters/d/dmd.vim

@@ -46,7 +46,7 @@ function! ale_linters#d#dmd#DMDCommand(buffer, dub_output) abort
         endif
     endfor
 
-    return 'dmd '. join(l:import_list) . ' -o- -vcolumns -c %t'
+    return 'dmd '. join(l:import_list) . ' -o- -wi -vcolumns -c %t'
 endfunction
 
 function! ale_linters#d#dmd#Handle(buffer, lines) abort

ale_linters/dart/language_server.vim

@@ -7,10 +7,6 @@ function! ale_linters#dart#language_server#GetExecutable(buffer) abort
     return ale#Var(a:buffer, 'dart_language_server_executable')
 endfunction
 
-function! ale_linters#dart#language_server#GetLanguage(buffer) abort
-    return 'dart'
-endfunction
-
 function! ale_linters#dart#language_server#GetProjectRoot(buffer) abort
     " Note: pub only looks for pubspec.yaml, there's no point in adding
     " support for pubspec.yml
@@ -24,7 +20,6 @@ call ale#linter#Define('dart', {
 \   'lsp': 'stdio',
 \   'executable_callback': 'ale_linters#dart#language_server#GetExecutable',
 \   'command_callback': 'ale_linters#dart#language_server#GetExecutable',
-\   'language_callback': 'ale_linters#dart#language_server#GetLanguage',
+\   'language': 'dart',
 \   'project_root_callback': 'ale_linters#dart#language_server#GetProjectRoot',
 \})
-

ale_linters/elixir/mix.vim

@@ -0,0 +1,61 @@
+" Author: evnu - https://github.com/evnu
+" Author: colbydehart - https://github.com/colbydehart
+" Description: Mix compile checking for Elixir files
+
+function! ale_linters#elixir#mix#Handle(buffer, lines) abort
+    " Matches patterns like the following:
+    "
+    " Error format
+    " ** (CompileError) apps/sim/lib/sim/server.ex:87: undefined function update_in/4
+    "
+    " TODO: Warning format
+    " warning: variable "foobar" does not exist and is being expanded to "foobar()", please use parentheses to remove the ambiguity or change the variable name
+
+    let l:pattern = '\v\(([^\)]+Error)\) ([^:]+):([^:]+): (.+)$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        let l:type = 'E'
+        let l:text = l:match[4]
+
+        call add(l:output, {
+        \   'bufnr': a:buffer,
+        \   'lnum': l:match[3] + 0,
+        \   'col': 0,
+        \   'type': l:type,
+        \   'text': l:text,
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+function! ale_linters#elixir#mix#FindProjectRoot(buffer) abort
+    let l:mix_file = ale#path#FindNearestFile(a:buffer, 'mix.exs')
+    if !empty(l:mix_file)
+      return fnamemodify(l:mix_file, ':p:h')
+    endif
+    return '.'
+endfunction
+
+function! ale_linters#elixir#mix#GetCommand(buffer) abort
+    let l:project_root = ale_linters#elixir#mix#FindProjectRoot(a:buffer)
+
+    let l:temp_dir = ale#engine#CreateDirectory(a:buffer)
+
+    let l:mix_build_path = has('win32')
+    \   ? 'set MIX_BUILD_PATH=' . ale#Escape(l:temp_dir) . ' &&'
+    \   : 'MIX_BUILD_PATH=' . ale#Escape(l:temp_dir)
+
+    return ale#path#CdString(l:project_root)
+          \ . l:mix_build_path
+          \ . ' mix compile %s'
+endfunction
+
+call ale#linter#Define('elixir', {
+\   'name': 'mix',
+\   'executable': 'mix',
+\   'command_callback': 'ale_linters#elixir#mix#GetCommand',
+\   'callback': 'ale_linters#elixir#mix#Handle',
+\   'lint_file': 1,
+\})

ale_linters/elm/make.vim

@@ -1,45 +1,26 @@
-" Author: buffalocoder - https://github.com/buffalocoder, soywod - https://github.com/soywod
+" Author: buffalocoder - https://github.com/buffalocoder, soywod - https://github.com/soywod, hecrj - https://github.com/hecrj
 " Description: Elm linting in Ale. Closely follows the Syntastic checker in https://github.com/ElmCast/elm-vim.
 
-call ale#Set('elm_make_executable', 'elm-make')
-call ale#Set('elm_make_use_global', 0)
+call ale#Set('elm_make_executable', 'elm')
+call ale#Set('elm_make_use_global', get(g:, 'ale_use_global_executables', 0))
 
 function! ale_linters#elm#make#GetExecutable(buffer) abort
     return ale#node#FindExecutable(a:buffer, 'elm_make', [
-    \   'node_modules/.bin/elm-make',
+    \   'node_modules/.bin/elm',
     \])
 endfunction
 
 function! ale_linters#elm#make#Handle(buffer, lines) abort
     let l:output = []
-    let l:is_windows = has('win32')
-    let l:temp_dir = l:is_windows ? $TMP : $TMPDIR
     let l:unparsed_lines = []
+
     for l:line in a:lines
-        if l:line[0] is# '['
-            let l:errors = json_decode(l:line)
-
-            for l:error in l:errors
-                " Check if file is from the temp directory.
-                " Filters out any errors not related to the buffer.
-                if l:is_windows
-                    let l:file_is_buffer = l:error.file[0:len(l:temp_dir) - 1] is? l:temp_dir
-                else
-                    let l:file_is_buffer = l:error.file[0:len(l:temp_dir) - 1] is# l:temp_dir
-                endif
-
-                if l:file_is_buffer
-                    call add(l:output, {
-                    \    'lnum': l:error.region.start.line,
-                    \    'col': l:error.region.start.column,
-                    \    'end_lnum': l:error.region.end.line,
-                    \    'end_col': l:error.region.end.column,
-                    \    'type': (l:error.type is? 'error') ? 'E' : 'W',
-                    \    'text': l:error.overview,
-                    \    'detail': l:error.overview . "\n\n" . l:error.details
-                    \})
-                endif
-            endfor
+        if l:line[0] is# '{'
+            " Elm 0.19
+            call ale_linters#elm#make#HandleElm019Line(l:line, l:output)
+        elseif l:line[0] is# '['
+            " Elm 0.18
+            call ale_linters#elm#make#HandleElm018Line(l:line, l:output)
         elseif l:line isnot# 'Successfully generated /dev/null'
             call add(l:unparsed_lines, l:line)
         endif
@@ -57,23 +38,142 @@ function! ale_linters#elm#make#Handle(buffer, lines) abort
     return l:output
 endfunction
 
+function! ale_linters#elm#make#HandleElm019Line(line, output) abort
+    let l:report = json_decode(a:line)
+
+    if l:report.type is? 'error'
+        " General problem
+        let l:details = ale_linters#elm#make#ParseMessage(l:report.message)
+
+        if empty(l:report.path)
+            let l:report.path = 'Elm'
+        endif
+
+        if ale_linters#elm#make#FileIsBuffer(l:report.path)
+            call add(a:output, {
+            \    'lnum': 1,
+            \    'type': 'E',
+            \    'text': l:details,
+            \})
+        else
+            call add(a:output, {
+            \    'lnum': 1,
+            \    'type': 'E',
+            \    'text': l:report.path .' - '. l:details,
+            \    'detail': l:report.path ." ----------\n\n". l:details,
+            \})
+        endif
+    else
+        " Compilation errors
+        for l:error in l:report.errors
+            let l:file_is_buffer = ale_linters#elm#make#FileIsBuffer(l:error.path)
+
+            for l:problem in l:error.problems
+                let l:details = ale_linters#elm#make#ParseMessage(l:problem.message)
+
+                if l:file_is_buffer
+                    " Buffer module has problems
+                    call add(a:output, {
+                    \    'lnum': l:problem.region.start.line,
+                    \    'col': l:problem.region.start.column,
+                    \    'end_lnum': l:problem.region.end.line,
+                    \    'end_col': l:problem.region.end.column,
+                    \    'type': 'E',
+                    \    'text': l:details,
+                    \})
+                else
+                    " Imported module has problems
+                    let l:location = l:error.path .':'. l:problem.region.start.line
+                    call add(a:output, {
+                    \    'lnum': 1,
+                    \    'type': 'E',
+                    \    'text': l:location .' - '. l:details,
+                    \    'detail': l:location ." ----------\n\n". l:details,
+                    \})
+                endif
+            endfor
+        endfor
+    endif
+endfunction
+
+function! ale_linters#elm#make#HandleElm018Line(line, output) abort
+    let l:errors = json_decode(a:line)
+
+    for l:error in l:errors
+        let l:file_is_buffer = ale_linters#elm#make#FileIsBuffer(l:error.file)
+
+        if l:file_is_buffer
+            " Current buffer has problems
+            call add(a:output, {
+            \    'lnum': l:error.region.start.line,
+            \    'col': l:error.region.start.column,
+            \    'end_lnum': l:error.region.end.line,
+            \    'end_col': l:error.region.end.column,
+            \    'type': (l:error.type is? 'error') ? 'E' : 'W',
+            \    'text': l:error.overview,
+            \    'detail': l:error.overview . "\n\n" . l:error.details
+            \})
+        elseif l:error.type is? 'error'
+            " Imported module has errors
+            let l:location = l:error.file .':'. l:error.region.start.line
+
+            call add(a:output, {
+            \    'lnum': 1,
+            \    'type': 'E',
+            \    'text': l:location .' - '. l:error.overview,
+            \    'detail': l:location ." ----------\n\n". l:error.overview . "\n\n" . l:error.details
+            \})
+        endif
+    endfor
+endfunction
+
+function! ale_linters#elm#make#FileIsBuffer(path) abort
+    let l:is_windows = has('win32')
+    let l:temp_dir = l:is_windows ? $TMP : $TMPDIR
+
+    if has('win32')
+        return a:path[0:len(l:temp_dir) - 1] is? l:temp_dir
+    else
+        return a:path[0:len(l:temp_dir) - 1] is# l:temp_dir
+    endif
+endfunction
+
+function! ale_linters#elm#make#ParseMessage(message) abort
+    return join(map(copy(a:message), 'ale_linters#elm#make#ParseMessageItem(v:val)'), '')
+endfunction
+
+function! ale_linters#elm#make#ParseMessageItem(item) abort
+    if type(a:item) == type('')
+        return a:item
+    else
+        return a:item.string
+    endif
+endfunction
+
 " Return the command to execute the linter in the projects directory.
 " If it doesn't, then this will fail when imports are needed.
 function! ale_linters#elm#make#GetCommand(buffer) abort
-    let l:elm_package = ale#path#FindNearestFile(a:buffer, 'elm-package.json')
+    let l:elm_json = ale#path#FindNearestFile(a:buffer, 'elm.json')
     let l:elm_exe = ale_linters#elm#make#GetExecutable(a:buffer)
-    if empty(l:elm_package)
+
+    if empty(l:elm_json)
+        " Fallback to Elm 0.18
+        let l:elm_json = ale#path#FindNearestFile(a:buffer, 'elm-package.json')
+    endif
+
+    if empty(l:elm_json)
         let l:dir_set_cmd = ''
     else
-        let l:root_dir = fnamemodify(l:elm_package, ':p:h')
+        let l:root_dir = fnamemodify(l:elm_json, ':p:h')
         let l:dir_set_cmd = 'cd ' . ale#Escape(l:root_dir) . ' && '
     endif
 
-    " The elm-make compiler, at the time of this writing, uses '/dev/null' as
+    " The elm compiler, at the time of this writing, uses '/dev/null' as
     " a sort of flag to tell the compiler not to generate an output file,
-    " which is why this is hard coded here. It does not use NUL on Windows.
-    " Source: https://github.com/elm-lang/elm-make/blob/master/src/Flags.hs
+    " which is why this is hard coded here.
+    " Source: https://github.com/elm-lang/elm-compiler/blob/19d5a769b30ec0b2fc4475985abb4cd94cd1d6c3/builder/src/Generate/Output.hs#L253
     let l:elm_cmd = ale#Escape(l:elm_exe)
+    \   . ' make'
     \   . ' --report=json'
     \   . ' --output=/dev/null'
 

ale_linters/gitcommit/gitlint.vim

@@ -4,7 +4,7 @@
 let g:ale_gitcommit_gitlint_executable =
 \   get(g:, 'ale_gitcommit_gitlint_executable', 'gitlint')
 let g:ale_gitcommit_gitlint_options = get(g:, 'ale_gitcommit_gitlint_options', '')
-let g:ale_gitcommit_gitlint_use_global = get(g:, 'ale_gitcommit_gitlint_use_global', 0)
+let g:ale_gitcommit_gitlint_use_global = get(g:, 'ale_gitcommit_gitlint_use_global', get(g:, 'ale_use_global_executables', 0))
 
 
 function! ale_linters#gitcommit#gitlint#GetExecutable(buffer) abort
@@ -28,6 +28,10 @@ function! ale_linters#gitcommit#gitlint#Handle(buffer, lines) abort
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
         let l:code = l:match[2]
 
+        if l:code is# 'T2' && !ale#Var(a:buffer, 'warn_about_trailing_whitespace')
+            continue
+        endif
+
         let l:item = {
         \   'lnum': l:match[1] + 0,
         \   'text': l:match[3],

ale_linters/glsl/glslls.vim

@@ -18,10 +18,6 @@ function! ale_linters#glsl#glslls#GetCommand(buffer) abort
     return ale#Escape(l:executable) . l:logfile_args . ' --stdin'
 endfunction
 
-function! ale_linters#glsl#glslls#GetLanguage(buffer) abort
-    return 'glsl'
-endfunction
-
 function! ale_linters#glsl#glslls#GetProjectRoot(buffer) abort
     let l:project_root = ale#c#FindProjectRoot(a:buffer)
 
@@ -33,6 +29,6 @@ call ale#linter#Define('glsl', {
 \   'lsp': 'stdio',
 \   'executable_callback': 'ale_linters#glsl#glslls#GetExecutable',
 \   'command_callback': 'ale_linters#glsl#glslls#GetCommand',
-\   'language_callback': 'ale_linters#glsl#glslls#GetLanguage',
+\   'language': 'glsl',
 \   'project_root_callback': 'ale_linters#glsl#glslls#GetProjectRoot',
 \})

ale_linters/handlebars/embertemplatelint.vim

@@ -2,7 +2,7 @@
 " Description: Ember-template-lint for checking Handlebars files
 
 call ale#Set('handlebars_embertemplatelint_executable', 'ember-template-lint')
-call ale#Set('handlebars_embertemplatelint_use_global', 0)
+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', [

ale_linters/haskell/hdevtools.vim

@@ -2,7 +2,7 @@
 " Description: hdevtools for Haskell files
 
 call ale#Set('haskell_hdevtools_executable', 'hdevtools')
-call ale#Set('haskell_hdevtools_options', '-g -Wall')
+call ale#Set('haskell_hdevtools_options', get(g:, 'hdevtools_options', '-g -Wall'))
 
 function! ale_linters#haskell#hdevtools#GetExecutable(buffer) abort
     return ale#Var(a:buffer, 'haskell_hdevtools_executable')

ale_linters/html/htmlhint.vim

@@ -3,7 +3,7 @@
 
 call ale#Set('html_htmlhint_options', '')
 call ale#Set('html_htmlhint_executable', 'htmlhint')
-call ale#Set('html_htmlhint_use_global', 0)
+call ale#Set('html_htmlhint_use_global', get(g:, 'ale_use_global_executables', 0))
 
 function! ale_linters#html#htmlhint#GetExecutable(buffer) abort
     return ale#node#FindExecutable(a:buffer, 'html_htmlhint', [

ale_linters/html/tidy.vim

@@ -1,11 +1,8 @@
 " Author: KabbAmine <amine.kabb@gmail.com>
 " Description: This file adds support for checking HTML code with tidy.
 
-" CLI options
 let g:ale_html_tidy_executable = get(g:, 'ale_html_tidy_executable', 'tidy')
-" Look for the old _args variable first.
-let s:default_options = get(g:, 'ale_html_tidy_args', '-q -e -language en')
-let g:ale_html_tidy_options = get(g:, 'ale_html_tidy_options', s:default_options)
+let g:ale_html_tidy_options = get(g:, 'ale_html_tidy_options', '-q -e -language en')
 
 function! ale_linters#html#tidy#GetCommand(buffer) abort
     " Specify file encoding in options

ale_linters/java/javac.vim

@@ -3,8 +3,9 @@
 
 let s:classpath_sep = has('unix') ? ':' : ';'
 
-let g:ale_java_javac_options = get(g:, 'ale_java_javac_options', '')
-let g:ale_java_javac_classpath = get(g:, 'ale_java_javac_classpath', '')
+call ale#Set('java_javac_executable', 'javac')
+call ale#Set('java_javac_options', '')
+call ale#Set('java_javac_classpath', '')
 
 function! ale_linters#java#javac#GetImportPaths(buffer) abort
     let l:pom_path = ale#path#FindNearestFile(a:buffer, 'pom.xml')
@@ -35,6 +36,10 @@ function! s:BuildClassPathOption(buffer, import_paths) abort
     \   : ''
 endfunction
 
+function! ale_linters#java#javac#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'java_javac_executable')
+endfunction
+
 function! ale_linters#java#javac#GetCommand(buffer, import_paths) abort
     let l:cp_option = s:BuildClassPathOption(a:buffer, a:import_paths)
     let l:sp_option = ''
@@ -72,11 +77,13 @@ function! ale_linters#java#javac#GetCommand(buffer, import_paths) abort
 
     " Create .class files in a temporary directory, which we will delete later.
     let l:class_file_directory = ale#engine#CreateDirectory(a:buffer)
+    let l:executable = ale_linters#java#javac#GetExecutable(a:buffer)
 
     " Always run javac from the directory the file is in, so we can resolve
     " relative paths correctly.
     return ale#path#BufferCdString(a:buffer)
-    \ . 'javac -Xlint'
+    \ . ale#Escape(l:executable)
+    \ . ' -Xlint'
     \ . ' ' . l:cp_option
     \ . ' ' . l:sp_option
     \ . ' -d ' . ale#Escape(l:class_file_directory)
@@ -119,7 +126,7 @@ endfunction
 
 call ale#linter#Define('java', {
 \   'name': 'javac',
-\   'executable': 'javac',
+\   'executable_callback': 'ale_linters#java#javac#GetExecutable',
 \   'command_chain': [
 \       {'callback': 'ale_linters#java#javac#GetImportPaths', 'output_stream': 'stdout'},
 \       {'callback': 'ale_linters#java#javac#GetCommand', 'output_stream': 'stderr'},

ale_linters/java/pmd.vim

@@ -0,0 +1,36 @@
+" Author: Johannes Wienke <languitar@semipol.de>
+" Description: PMD for Java files
+
+function! ale_linters#java#pmd#Handle(buffer, lines) abort
+    let l:pattern = '"\(\d\+\)",".\+","\(.\+\)","\(\d\+\)","\(\d\+\)","\(.\+\)","\(.\+\)","\(.\+\)"$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        call add(l:output, {
+        \   'type': 'W',
+        \   'lnum': l:match[4] + 0,
+        \   'text': l:match[5],
+        \   'code': l:match[6] . ' - ' . l:match[7],
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+function! ale_linters#java#pmd#GetCommand(buffer) abort
+    return 'pmd '
+    \ . ale#Var(a:buffer, 'java_pmd_options')
+    \ . ' -f csv'
+    \ . ' -d %t'
+endfunction
+
+if !exists('g:ale_java_pmd_options')
+    let g:ale_java_pmd_options = '-R category/java/bestpractices.xml'
+endif
+
+call ale#linter#Define('java', {
+\   'name': 'pmd',
+\   'executable': 'pmd',
+\   'command_callback': 'ale_linters#java#pmd#GetCommand',
+\   'callback': 'ale_linters#java#pmd#Handle',
+\})

ale_linters/javascript/flow.vim

@@ -4,7 +4,8 @@
 
 call ale#Set('javascript_flow_executable', 'flow')
 call ale#Set('javascript_flow_use_home_config', 0)
-call ale#Set('javascript_flow_use_global', 0)
+call ale#Set('javascript_flow_use_global', get(g:, 'ale_use_global_executables', 0))
+call ale#Set('javascript_flow_use_respect_pragma', 1)
 
 function! ale_linters#javascript#flow#GetExecutable(buffer) abort
     let l:flow_config = ale#path#FindNearestFile(a:buffer, '.flowconfig')
@@ -47,8 +48,8 @@ function! ale_linters#javascript#flow#GetCommand(buffer, version_lines) abort
 
     " If we can parse the version number, then only use --respect-pragma
     " if the version is >= 0.36.0, which added the argument.
-    let l:use_respect_pragma = empty(l:version)
-    \   || ale#semver#GTE(l:version, [0, 36])
+    let l:use_respect_pragma = ale#Var(a:buffer, 'javascript_flow_use_respect_pragma')
+    \   && (empty(l:version) || ale#semver#GTE(l:version, [0, 36]))
 
     return ale#Escape(l:executable)
     \   . ' check-contents'

ale_linters/javascript/jscs.vim

@@ -2,7 +2,7 @@
 " Description: jscs for JavaScript files
 
 call ale#Set('javascript_jscs_executable', 'jscs')
-call ale#Set('javascript_jscs_use_global', 0)
+call ale#Set('javascript_jscs_use_global', get(g:, 'ale_use_global_executables', 0))
 
 function! ale_linters#javascript#jscs#GetExecutable(buffer) abort
     return ale#node#FindExecutable(a:buffer, 'javascript_jscs', [

ale_linters/javascript/jshint.vim

@@ -2,7 +2,7 @@
 " Description: JSHint for Javascript files
 
 call ale#Set('javascript_jshint_executable', 'jshint')
-call ale#Set('javascript_jshint_use_global', 0)
+call ale#Set('javascript_jshint_use_global', get(g:, 'ale_use_global_executables', 0))
 
 function! ale_linters#javascript#jshint#GetExecutable(buffer) abort
     return ale#node#FindExecutable(a:buffer, 'javascript_jshint', [

ale_linters/javascript/standard.vim

@@ -2,7 +2,7 @@
 " Description: standardjs for JavaScript files
 
 call ale#Set('javascript_standard_executable', 'standard')
-call ale#Set('javascript_standard_use_global', 0)
+call ale#Set('javascript_standard_use_global', get(g:, 'ale_use_global_executables', 0))
 call ale#Set('javascript_standard_options', '')
 
 function! ale_linters#javascript#standard#GetExecutable(buffer) abort

ale_linters/javascript/tsserver.vim

@@ -0,0 +1,26 @@
+" Author: Chaucerbao, w0rp <devw0rp@gmail.com>
+" Description: tsserver integration for ALE
+
+call ale#Set('javascript_tsserver_executable', 'tsserver')
+call ale#Set('javascript_tsserver_config_path', '')
+call ale#Set('javascript_tsserver_use_global', get(g:, 'ale_use_global_executables', 0))
+
+" These functions need to be defined just to comply with the API for LSP.
+function! ale_linters#javascript#tsserver#GetProjectRoot(buffer) abort
+    return ''
+endfunction
+
+function! ale_linters#javascript#tsserver#GetExecutable(buffer) abort
+    return ale#node#FindExecutable(a:buffer, 'javascript_tsserver', [
+    \   'node_modules/.bin/tsserver',
+    \])
+endfunction
+
+call ale#linter#Define('javascript', {
+\   'name': 'tsserver',
+\   'lsp': 'tsserver',
+\   'executable_callback': 'ale_linters#javascript#tsserver#GetExecutable',
+\   'command_callback': 'ale_linters#javascript#tsserver#GetExecutable',
+\   'project_root_callback': 'ale_linters#javascript#tsserver#GetProjectRoot',
+\   'language': '',
+\})

ale_linters/javascript/xo.vim

@@ -2,7 +2,7 @@
 " Description: xo for JavaScript files
 
 call ale#Set('javascript_xo_executable', 'xo')
-call ale#Set('javascript_xo_use_global', 0)
+call ale#Set('javascript_xo_use_global', get(g:, 'ale_use_global_executables', 0))
 call ale#Set('javascript_xo_options', '')
 
 function! ale_linters#javascript#xo#GetExecutable(buffer) abort

ale_linters/less/lessc.vim

@@ -3,7 +3,7 @@
 
 call ale#Set('less_lessc_executable', 'lessc')
 call ale#Set('less_lessc_options', '')
-call ale#Set('less_lessc_use_global', 0)
+call ale#Set('less_lessc_use_global', get(g:, 'ale_use_global_executables', 0))
 
 function! ale_linters#less#lessc#GetExecutable(buffer) abort
     return ale#node#FindExecutable(a:buffer, 'less_lessc', [

ale_linters/less/stylelint.vim

@@ -2,7 +2,7 @@
 
 call ale#Set('less_stylelint_executable', 'stylelint')
 call ale#Set('less_stylelint_options', '')
-call ale#Set('less_stylelint_use_global', 0)
+call ale#Set('less_stylelint_use_global', get(g:, 'ale_use_global_executables', 0))
 
 function! ale_linters#less#stylelint#GetExecutable(buffer) abort
     return ale#node#FindExecutable(a:buffer, 'less_stylelint', [

ale_linters/markdown/mdl.vim

@@ -10,9 +10,13 @@ endfunction
 
 function! ale_linters#markdown#mdl#GetCommand(buffer) abort
     let l:executable = ale_linters#markdown#mdl#GetExecutable(a:buffer)
+    let l:exec_args = l:executable =~? 'bundle$'
+    \   ? ' exec mdl'
+    \   : ''
+
     let l:options = ale#Var(a:buffer, 'markdown_mdl_options')
 
-    return ale#Escape(l:executable)
+    return ale#Escape(l:executable) . l:exec_args
     \   . (!empty(l:options) ? ' ' . l:options : '')
 endfunction
 

ale_linters/mercury/mmc.vim

@@ -0,0 +1,45 @@
+" Author: stewy33 <slocumstewy@gmail.com>
+" Description: Lints mercury files using mmc
+
+call ale#Set('mercury_mmc_executable', 'mmc')
+call ale#Set('mercury_mmc_options', '--make --output-compile-error-lines 100')
+
+function! ale_linters#mercury#mmc#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'mercury_mmc_executable')
+endfunction
+
+function! ale_linters#mercury#mmc#GetCommand(buffer) abort
+    let l:module_name = expand('#' . a:buffer . ':t:r')
+
+    return ale#path#BufferCdString(a:buffer)
+    \ . ale_linters#mercury#mmc#GetExecutable(a:buffer)
+    \ . ' --errorcheck-only '
+    \ . ale#Var(a:buffer, 'mercury_mmc_options')
+    \ . ' ' . l:module_name
+endfunction
+
+function! ale_linters#mercury#mmc#Handle(buffer, lines) abort
+    " output format
+    " <filename>:<line>:   <issue type>: <message>
+    let l:pattern = '\v^\w+\.m:(\d+):\s+([W|w]arning|.*[E|e]rror.*): (.*)'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        call add(l:output, {
+        \   'lnum': substitute(l:match[1], '\v^0*', '', '') + 0,
+        \   'type': l:match[2][0] =~? 'W' ? 'W' : 'E',
+        \   'text': l:match[2] . ': ' . l:match[3]
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('mercury', {
+\   'name': 'mmc',
+\   'output_stream': 'stderr',
+\   'executable_callback': 'ale_linters#mercury#mmc#GetExecutable',
+\   'command_callback': 'ale_linters#mercury#mmc#GetCommand',
+\   'callback': 'ale_linters#mercury#mmc#Handle',
+\   'lint_file': 1,
+\})

ale_linters/nasm/nasm.vim

@@ -0,0 +1,50 @@
+" Author: Oyvind Ingvaldsen <oyvind.ingvaldsen@gmail.com>
+" Description: NASM linter for asmsyntax nasm.
+
+call ale#Set('nasm_nasm_executable', 'nasm')
+call ale#Set('nasm_nasm_options', '')
+
+function! ale_linters#nasm#nasm#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'nasm_nasm_executable')
+endfunction
+
+function! ale_linters#nasm#nasm#GetOptions(buffer) abort
+    return ale#Var(a:buffer, 'nasm_nasm_options')
+endfunction
+
+function! ale_linters#nasm#nasm#GetCommand(buffer) abort
+    " Note that NASM require a trailing slash to the -I option.
+    let l:executable = ale#Escape(ale_linters#nasm#nasm#GetExecutable(a:buffer))
+    let l:separator = has('win32') ? '\' : '/'
+    let l:path = ale#Escape(fnamemodify(bufname(a:buffer), ':p:h') . l:separator)
+    let l:options = ale_linters#nasm#nasm#GetOptions(a:buffer)
+
+    return l:executable
+    \   . ' -X gnu'
+    \   . ' -I ' . l:path
+    \   . ' ' . l:options
+    \   . ' %s'
+endfunction
+
+function! ale_linters#nasm#nasm#Handle(buffer, lines) abort
+    " Note that we treat 'fatal' as errors.
+    let l:pattern = '^.\+:\(\d\+\): \([^:]\+\): \(.\+\)$'
+    let l:output = []
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        call add(l:output, {
+        \ 'lnum': l:match[1] + 0,
+        \ 'type': l:match[2] =~? 'error\|fatal' ? 'E' : 'W',
+        \ 'text': l:match[3],
+        \})
+    endfor
+    return l:output
+endfunction
+
+call ale#linter#Define('nasm', {
+\   'name': 'nasm',
+\   'executable': 'nasm',
+\   'output_stream': 'stderr',
+\   'lint_file': 1,
+\   'command_callback': 'ale_linters#nasm#nasm#GetCommand',
+\   'callback': 'ale_linters#nasm#nasm#Handle',
+\})

ale_linters/ocaml/ols.vim

@@ -2,7 +2,7 @@
 " Description: A language server for OCaml
 
 call ale#Set('ocaml_ols_executable', 'ocaml-language-server')
-call ale#Set('ocaml_ols_use_global', 0)
+call ale#Set('ocaml_ols_use_global', get(g:, 'ale_use_global_executables', 0))
 
 call ale#linter#Define('ocaml', {
 \   'name': 'ols',

ale_linters/perl/perlcritic.vim

@@ -18,9 +18,9 @@ function! ale_linters#perl#perlcritic#GetExecutable(buffer) abort
 endfunction
 
 function! ale_linters#perl#perlcritic#GetProfile(buffer) abort
-
     " first see if we've been overridden
     let l:profile = ale#Var(a:buffer, 'perl_perlcritic_profile')
+
     if l:profile is? ''
         return ''
     endif
@@ -31,6 +31,7 @@ endfunction
 
 function! ale_linters#perl#perlcritic#GetCommand(buffer) abort
     let l:critic_verbosity = '%l:%c %m\n'
+
     if ale#Var(a:buffer, 'perl_perlcritic_showrules')
         let l:critic_verbosity = '%l:%c %m [%p]\n'
     endif
@@ -38,17 +39,11 @@ function! ale_linters#perl#perlcritic#GetCommand(buffer) abort
     let l:profile = ale_linters#perl#perlcritic#GetProfile(a:buffer)
     let l:options = ale#Var(a:buffer, 'perl_perlcritic_options')
 
-    let l:command = ale#Escape(ale_linters#perl#perlcritic#GetExecutable(a:buffer))
-    \   . " --verbose '". l:critic_verbosity . "' --nocolor"
-
-    if l:profile isnot? ''
-        let l:command .= ' --profile ' . ale#Escape(l:profile)
-    endif
-    if l:options isnot? ''
-        let l:command .= ' ' . l:options
-    endif
-
-    return l:command
+    return ale#Escape(ale_linters#perl#perlcritic#GetExecutable(a:buffer))
+    \   . ' --verbose ' . ale#Escape(l:critic_verbosity)
+    \   . ' --nocolor'
+    \   . (!empty(l:profile) ? ' --profile ' . ale#Escape(l:profile) : '')
+    \   . (!empty(l:options) ? ' ' . l:options : '')
 endfunction
 
 

ale_linters/php/langserver.vim

@@ -2,7 +2,7 @@
 " Description: PHP Language server integration for ALE
 
 call ale#Set('php_langserver_executable', 'php-language-server.php')
-call ale#Set('php_langserver_use_global', 0)
+call ale#Set('php_langserver_use_global', get(g:, 'ale_use_global_executables', 0))
 
 function! ale_linters#php#langserver#GetExecutable(buffer) abort
     return ale#node#FindExecutable(a:buffer, 'php_langserver', [
@@ -14,10 +14,6 @@ function! ale_linters#php#langserver#GetCommand(buffer) abort
     return 'php ' . ale#Escape(ale_linters#php#langserver#GetExecutable(a:buffer))
 endfunction
 
-function! ale_linters#php#langserver#GetLanguage(buffer) abort
-    return 'php'
-endfunction
-
 function! ale_linters#php#langserver#GetProjectRoot(buffer) abort
     let l:git_path = ale#path#FindNearestDirectory(a:buffer, '.git')
 
@@ -29,6 +25,6 @@ call ale#linter#Define('php', {
 \   'lsp': 'stdio',
 \   'executable_callback': 'ale_linters#php#langserver#GetExecutable',
 \   'command_callback': 'ale_linters#php#langserver#GetCommand',
-\   'language_callback': 'ale_linters#php#langserver#GetLanguage',
+\   'language': 'php',
 \   'project_root_callback': 'ale_linters#php#langserver#GetProjectRoot',
 \})

ale_linters/php/phan.vim

@@ -1,28 +1,65 @@
-" Author: diegoholiveira <https://github.com/diegoholiveira>
+" Author: diegoholiveira <https://github.com/diegoholiveira>, haginaga <https://github.com/haginaga>
 " Description: static analyzer for PHP
 
 " Define the minimum severity
 let g:ale_php_phan_minimum_severity = get(g:, 'ale_php_phan_minimum_severity', 0)
 
+let g:ale_php_phan_executable = get(g:, 'ale_php_phan_executable', 'phan')
+let g:ale_php_phan_use_client = get(g:, 'ale_php_phan_use_client', 0)
+
+function! ale_linters#php#phan#GetExecutable(buffer) abort
+    let l:executable = ale#Var(a:buffer, 'php_phan_executable')
+
+    if ale#Var(a:buffer, 'php_phan_use_client') == 1 && l:executable is# 'phan'
+        let l:executable = 'phan_client'
+    endif
+
+    return l:executable
+endfunction
+
 function! ale_linters#php#phan#GetCommand(buffer) abort
-    return 'phan -y '
-    \   . ale#Var(a:buffer, 'php_phan_minimum_severity')
-    \   . ' %s'
+    if ale#Var(a:buffer, 'php_phan_use_client') == 1
+        let l:args = '-l '
+        \   . ' %s'
+    else
+        let l:args = '-y '
+        \   . ale#Var(a:buffer, 'php_phan_minimum_severity')
+        \   . ' %s'
+    endif
+
+    let l:executable = ale_linters#php#phan#GetExecutable(a:buffer)
+
+    return ale#Escape(l:executable) . ' ' . l:args
 endfunction
 
 function! ale_linters#php#phan#Handle(buffer, lines) abort
     " Matches against lines like the following:
-    "
-    " /path/to/some-filename.php:18 ERRORTYPE message
-    let l:pattern = '^.*:\(\d\+\)\s\(\w\+\)\s\(.\+\)$'
+    if ale#Var(a:buffer, 'php_phan_use_client') == 1
+        " Phan error: ERRORTYPE: message in /path/to/some-filename.php on line nnn
+        let l:pattern = '^Phan error: \(\w\+\): \(.\+\) in \(.\+\) on line \(\d\+\)$'
+    else
+        " /path/to/some-filename.php:18 ERRORTYPE message
+        let l:pattern = '^.*:\(\d\+\)\s\(\w\+\)\s\(.\+\)$'
+    endif
+
     let l:output = []
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
-        call add(l:output, {
-        \   'lnum': l:match[1] + 0,
-        \   'text': l:match[3],
-        \   'type': 'W',
-        \})
+        if ale#Var(a:buffer, 'php_phan_use_client') == 1
+            let l:dict = {
+            \   'lnum': l:match[4] + 0,
+            \   'text': l:match[2],
+            \   'type': 'W',
+            \}
+        else
+            let l:dict = {
+            \   'lnum': l:match[1] + 0,
+            \   'text': l:match[3],
+            \   'type': 'W',
+            \}
+        endif
+
+        call add(l:output, l:dict)
     endfor
 
     return l:output
@@ -30,7 +67,7 @@ endfunction
 
 call ale#linter#Define('php', {
 \   'name': 'phan',
-\   'executable': 'phan',
+\   'executable_callback': 'ale_linters#php#phan#GetExecutable',
 \   'command_callback': 'ale_linters#php#phan#GetCommand',
 \   'callback': 'ale_linters#php#phan#Handle',
 \})

ale_linters/php/phpcs.vim

@@ -4,7 +4,7 @@
 let g:ale_php_phpcs_standard = get(g:, 'ale_php_phpcs_standard', '')
 
 call ale#Set('php_phpcs_executable', 'phpcs')
-call ale#Set('php_phpcs_use_global', 0)
+call ale#Set('php_phpcs_use_global', get(g:, 'ale_use_global_executables', 0))
 
 function! ale_linters#php#phpcs#GetExecutable(buffer) abort
     return ale#node#FindExecutable(a:buffer, 'php_phpcs', [

ale_linters/po/msgfmt.vim

@@ -1,10 +1,30 @@
 " Author: Cian Butler https://github.com/butlerx
 " Description: msgfmt for PO files
 
+function! ale_linters#po#msgfmt#Handle(buffer, lines) abort
+    let l:results = ale#handlers#unix#HandleAsWarning(a:buffer, a:lines)
+    let l:index = 0
+
+    for l:item in l:results
+        if l:index > 0 && l:item.text =~? 'this is the location of the first definition'
+            let l:last_item = l:results[l:index - 1]
+
+            if l:last_item.text =~? 'duplicate message definition'
+                let l:last_item.text = 'duplicate of message at line ' . l:item.lnum
+                let l:item.text = 'first location of duplicate of message at line ' . l:last_item.lnum
+            endif
+        endif
+
+        let l:index += 1
+    endfor
+
+    return l:results
+endfunction
+
 call ale#linter#Define('po', {
 \   'name': 'msgfmt',
 \   'executable': 'msgfmt',
 \   'output_stream': 'stderr',
 \   'command': 'msgfmt --statistics --output-file=- %t',
-\   'callback': 'ale#handlers#unix#HandleAsWarning',
+\   'callback': 'ale_linters#po#msgfmt#Handle',
 \})

ale_linters/pug/puglint.vim

@@ -3,7 +3,7 @@
 
 call ale#Set('pug_puglint_options', '')
 call ale#Set('pug_puglint_executable', 'pug-lint')
-call ale#Set('pug_puglint_use_global', 0)
+call ale#Set('pug_puglint_use_global', get(g:, 'ale_use_global_executables', 0))
 
 function! ale_linters#pug#puglint#GetExecutable(buffer) abort
     return ale#node#FindExecutable(a:buffer, 'pug_puglint', [

ale_linters/puppet/puppet.vim

@@ -4,14 +4,15 @@ function! ale_linters#puppet#puppet#Handle(buffer, lines) abort
     " Matches patterns like the following:
     " 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: .*: \(.\+\) at .\+\.pp:\(\d\+\):\=\(\d*\)'
+    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[2] + 0,
-        \   'col': l:match[3] + 0,
+        \   'lnum': l:match[4] + 0,
+        \   'col': l:match[6] + 0,
         \   'text': l:match[1],
         \})
     endfor

ale_linters/pyrex/cython.vim

@@ -1,10 +1,43 @@
-" Author: w0rp <devw0rp@gmail.com>
+" Author: w0rp <devw0rp@gmail.com>,
+" Nicolas Pauss <https://github.com/nicopauss>
 " Description: cython syntax checking for cython files.
 
+call ale#Set('pyrex_cython_executable', 'cython')
+call ale#Set('pyrex_cython_options', '--warning-extra')
+
+function! ale_linters#pyrex#cython#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'pyrex_cython_executable')
+endfunction
+
+function! ale_linters#pyrex#cython#GetCommand(buffer) abort
+    let l:local_dir = ale#Escape(fnamemodify(bufname(a:buffer), ':p:h'))
+
+    return ale#Escape(ale_linters#pyrex#cython#GetExecutable(a:buffer))
+    \   . ' --working ' . l:local_dir . ' --include-dir ' . l:local_dir
+    \   . ' ' . ale#Var(a:buffer, 'pyrex_cython_options')
+    \   . ' --output-file ' . g:ale#util#nul_file . ' %t'
+endfunction
+
+function! ale_linters#pyrex#cython#Handle(buffer, lines) abort
+    let l:pattern = '\v^(\w+: )?[^:]+:(\d+):?(\d+)?:? ?(.+)$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        call add(l:output, {
+        \   'lnum': l:match[2] + 0,
+        \   'col': l:match[3] + 0,
+        \   'text': l:match[4],
+        \   'type': l:match[1][0] is# 'w' ? 'W' : 'E',
+        \})
+    endfor
+
+    return l:output
+endfunction
+
 call ale#linter#Define('pyrex', {
 \   'name': 'cython',
 \   'output_stream': 'stderr',
-\   'executable': 'cython',
-\   'command': 'cython --warning-extra -o ' . g:ale#util#nul_file . ' %t',
-\   'callback': 'ale#handlers#unix#HandleAsError',
+\   'executable_callback': 'ale_linters#pyrex#cython#GetExecutable',
+\   'command_callback': 'ale_linters#pyrex#cython#GetCommand',
+\   'callback': 'ale_linters#pyrex#cython#Handle',
 \})

ale_linters/python/flake8.vim

@@ -1,14 +1,10 @@
 " Author: w0rp <devw0rp@gmail.com>
 " Description: flake8 for python files
 
-let g:ale_python_flake8_executable =
-\   get(g:, 'ale_python_flake8_executable', 'flake8')
-
-" Support an old setting as a fallback.
-let s:default_options = get(g:, 'ale_python_flake8_args', '')
-let g:ale_python_flake8_options =
-\   get(g:, 'ale_python_flake8_options', s:default_options)
-let g:ale_python_flake8_use_global = get(g:, 'ale_python_flake8_use_global', 0)
+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)
 
 function! s:UsingModule(buffer) abort
     return ale#Var(a:buffer, 'python_flake8_options') =~# ' *-m flake8'
@@ -39,9 +35,16 @@ function! ale_linters#python#flake8#VersionCheck(buffer) abort
 endfunction
 
 function! ale_linters#python#flake8#GetCommand(buffer, version_output) abort
+    let l:cd_string = ale#Var(a:buffer, 'python_flake8_change_directory')
+    \   ? ale#path#BufferCdString(a:buffer)
+    \   : ''
     let l:executable = ale_linters#python#flake8#GetExecutable(a:buffer)
     let l:version = ale#semver#GetVersion(l:executable, a:version_output)
 
+    let l:exec_args = l:executable =~? 'pipenv$'
+    \   ? ' run flake8'
+    \   : ''
+
     " Only include the --stdin-display-name argument if we can parse the
     " flake8 version, and it is recent enough to support it.
     let l:display_name_args = ale#semver#GTE(l:version, [3, 0, 0])
@@ -50,7 +53,8 @@ function! ale_linters#python#flake8#GetCommand(buffer, version_output) abort
 
     let l:options = ale#Var(a:buffer, 'python_flake8_options')
 
-    return ale#Escape(l:executable)
+    return l:cd_string
+    \   . ale#Escape(l:executable) . l:exec_args
     \   . (!empty(l:options) ? ' ' . l:options : '')
     \   . ' --format=default'
     \   . l:display_name_args . ' -'

ale_linters/python/mypy.vim

@@ -4,7 +4,7 @@
 call ale#Set('python_mypy_executable', 'mypy')
 call ale#Set('python_mypy_ignore_invalid_syntax', 0)
 call ale#Set('python_mypy_options', '')
-call ale#Set('python_mypy_use_global', 0)
+call ale#Set('python_mypy_use_global', get(g:, 'ale_use_global_executables', 0))
 
 function! ale_linters#python#mypy#GetExecutable(buffer) abort
     return ale#python#FindExecutable(a:buffer, 'python_mypy', ['mypy'])
@@ -23,10 +23,14 @@ function! ale_linters#python#mypy#GetCommand(buffer) abort
     let l:dir = s:GetDir(a:buffer)
     let l:executable = ale_linters#python#mypy#GetExecutable(a:buffer)
 
+    let l:exec_args = l:executable =~? 'pipenv$'
+    \   ? ' run mypy'
+    \   : ''
+
     " We have to always switch to an explicit directory for a command so
     " we can know with certainty the base path for the 'filename' keys below.
     return ale#path#CdString(l:dir)
-    \   . ale#Escape(l:executable)
+    \   . ale#Escape(l:executable) . l:exec_args
     \   . ' --show-column-numbers '
     \   . ale#Var(a:buffer, 'python_mypy_options')
     \   . ' --shadow-file %s %t %s'

ale_linters/python/prospector.vim

@@ -7,14 +7,21 @@ let g:ale_python_prospector_executable =
 let g:ale_python_prospector_options =
 \   get(g:, 'ale_python_prospector_options', '')
 
-let g:ale_python_prospector_use_global = get(g:, 'ale_python_prospector_use_global', 0)
+let g:ale_python_prospector_use_global = get(g:, 'ale_python_prospector_use_global', get(g:, 'ale_use_global_executables', 0))
 
 function! ale_linters#python#prospector#GetExecutable(buffer) abort
     return ale#python#FindExecutable(a:buffer, 'python_prospector', ['prospector'])
 endfunction
 
 function! ale_linters#python#prospector#GetCommand(buffer) abort
-    return ale#Escape(ale_linters#python#prospector#GetExecutable(a:buffer))
+    let l:executable = ale_linters#python#prospector#GetExecutable(a:buffer)
+
+    let l:exec_args = l:executable =~? 'pipenv$'
+    \   ? ' run prospector'
+    \   : ''
+
+    return ale#Escape(l:executable)
+    \   . l:exec_args
     \   . ' ' . ale#Var(a:buffer, 'python_prospector_options')
     \   . ' --messages-only --absolute-paths --zero-exit --output-format json'
     \   . ' %s'
@@ -23,6 +30,10 @@ endfunction
 function! ale_linters#python#prospector#Handle(buffer, lines) abort
     let l:output = []
 
+    if empty(a:lines)
+        return []
+    endif
+
     let l:prospector_error = json_decode(join(a:lines, ''))
 
     for l:error in l:prospector_error.messages

ale_linters/python/pycodestyle.vim

@@ -3,14 +3,20 @@
 
 call ale#Set('python_pycodestyle_executable', 'pycodestyle')
 call ale#Set('python_pycodestyle_options', '')
-call ale#Set('python_pycodestyle_use_global', 0)
+call ale#Set('python_pycodestyle_use_global', get(g:, 'ale_use_global_executables', 0))
 
 function! ale_linters#python#pycodestyle#GetExecutable(buffer) abort
     return ale#python#FindExecutable(a:buffer, 'python_pycodestyle', ['pycodestyle'])
 endfunction
 
 function! ale_linters#python#pycodestyle#GetCommand(buffer) abort
-    return ale#Escape(ale_linters#python#pycodestyle#GetExecutable(a:buffer))
+    let l:executable = ale_linters#python#pycodestyle#GetExecutable(a:buffer)
+
+    let l:exec_args = l:executable =~? 'pipenv$'
+    \   ? ' run pycodestyle'
+    \   : ''
+
+    return ale#Escape(l:executable) . l:exec_args
     \   . ' '
     \   . ale#Var(a:buffer, 'python_pycodestyle_options')
     \   . ' -'

ale_linters/python/pyflakes.vim

@@ -2,7 +2,7 @@
 " Description: pyflakes for python files
 
 call ale#Set('python_pyflakes_executable', 'pyflakes')
-call ale#Set('python_pyflakes_use_global', 0)
+call ale#Set('python_pyflakes_use_global', get(g:, 'ale_use_global_executables', 0))
 
 function! ale_linters#python#pyflakes#GetExecutable(buffer) abort
     return ale#python#FindExecutable(a:buffer, 'python_pyflakes', ['pyflakes'])
@@ -11,7 +11,13 @@ endfunction
 function! ale_linters#python#pyflakes#GetCommand(buffer) abort
     let l:executable = ale_linters#python#pyflakes#GetExecutable(a:buffer)
 
-    return ale#Escape(l:executable) . ' %t'
+    let l:exec_args = l:executable =~? 'pipenv$'
+    \   ? ' run pyflakes'
+    \   : ''
+
+    return ale#Escape(l:executable)
+    \   . l:exec_args
+    \   . ' %t'
 endfunction
 
 function! ale_linters#python#pyflakes#Handle(buffer, lines) abort

ale_linters/python/pylint.vim

@@ -1,20 +1,28 @@
 " Author: keith <k@keith.so>
 " Description: pylint for python files
 
-let g:ale_python_pylint_executable =
-\   get(g:, 'ale_python_pylint_executable', 'pylint')
-
-let g:ale_python_pylint_options =
-\   get(g:, 'ale_python_pylint_options', '')
-
-let g:ale_python_pylint_use_global = get(g:, 'ale_python_pylint_use_global', 0)
+call ale#Set('python_pylint_executable', 'pylint')
+call ale#Set('python_pylint_options', '')
+call ale#Set('python_pylint_use_global', get(g:, 'ale_use_global_executables', 0))
+call ale#Set('python_pylint_change_directory', 1)
 
 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
-    return ale#Escape(ale_linters#python#pylint#GetExecutable(a:buffer))
+    let l:cd_string = ale#Var(a:buffer, 'python_pylint_change_directory')
+    \   ? ale#path#BufferCdString(a:buffer)
+    \   : ''
+
+    let l:executable = ale_linters#python#pylint#GetExecutable(a:buffer)
+
+    let l:exec_args = l:executable =~? 'pipenv$'
+    \   ? ' run pylint'
+    \   : ''
+
+    return l:cd_string
+    \   . ale#Escape(l:executable) . l:exec_args
     \   . ' ' . ale#Var(a:buffer, 'python_pylint_options')
     \   . ' --output-format text --msg-template="{path}:{line}:{column}: {msg_id} ({symbol}) {msg}" --reports n'
     \   . ' %s'
@@ -24,7 +32,7 @@ function! ale_linters#python#pylint#Handle(buffer, lines) abort
     " Matches patterns like the following:
     "
     " test.py:4:4: W0101 (unreachable) Unreachable code
-    let l:pattern = '\v^[^:]+:(\d+):(\d+): ([[:alnum:]]+) \(([^(]*)\) (.*)$'
+    let l:pattern = '\v^[a-zA-Z]?:?[^:]+:(\d+):(\d+): ([[:alnum:]]+) \(([^(]*)\) (.*)$'
     let l:output = []
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)

ale_linters/python/pyls.vim

@@ -2,7 +2,7 @@
 " Description: A language server for Python
 
 call ale#Set('python_pyls_executable', 'pyls')
-call ale#Set('python_pyls_use_global', 0)
+call ale#Set('python_pyls_use_global', get(g:, 'ale_use_global_executables', 0))
 
 function! ale_linters#python#pyls#GetExecutable(buffer) abort
     return ale#python#FindExecutable(a:buffer, 'python_pyls', ['pyls'])
@@ -11,11 +11,11 @@ endfunction
 function! ale_linters#python#pyls#GetCommand(buffer) abort
     let l:executable = ale_linters#python#pyls#GetExecutable(a:buffer)
 
-    return ale#Escape(l:executable)
-endfunction
+    let l:exec_args = l:executable =~? 'pipenv$'
+    \   ? ' run pyls'
+    \   : ''
 
-function! ale_linters#python#pyls#GetLanguage(buffer) abort
-    return 'python'
+    return ale#Escape(l:executable) . l:exec_args
 endfunction
 
 call ale#linter#Define('python', {
@@ -23,6 +23,7 @@ call ale#linter#Define('python', {
 \   'lsp': 'stdio',
 \   'executable_callback': 'ale_linters#python#pyls#GetExecutable',
 \   'command_callback': 'ale_linters#python#pyls#GetCommand',
-\   'language_callback': 'ale_linters#python#pyls#GetLanguage',
+\   'language': 'python',
 \   'project_root_callback': 'ale#python#FindProjectRoot',
+\   'completion_filter': 'ale#completion#python#CompletionItemFilter',
 \})

ale_linters/python/pyre.vim

@@ -0,0 +1,29 @@
+" Author: dsifford <dereksifford@gmail.com>
+" Description: A performant type-checker supporting LSP for Python 3 created by Facebook
+
+call ale#Set('python_pyre_executable', 'pyre')
+call ale#Set('python_pyre_use_global', get(g:, 'ale_use_global_executables', 0))
+
+function! ale_linters#python#pyre#GetExecutable(buffer) abort
+    return ale#python#FindExecutable(a:buffer, 'python_pyre', ['pyre'])
+endfunction
+
+function! ale_linters#python#pyre#GetCommand(buffer) abort
+    let l:executable = ale_linters#python#pyre#GetExecutable(a:buffer)
+
+    let l:exec_args = l:executable =~? 'pipenv$'
+    \   ? ' run pyre persistent'
+    \   : ' persistent'
+
+    return ale#Escape(l:executable) . l:exec_args
+endfunction
+
+call ale#linter#Define('python', {
+\   'name': 'pyre',
+\   'lsp': 'stdio',
+\   'executable_callback': 'ale_linters#python#pyre#GetExecutable',
+\   'command_callback': 'ale_linters#python#pyre#GetCommand',
+\   'language': 'python',
+\   'project_root_callback': 'ale#python#FindProjectRoot',
+\   'completion_filter': 'ale#completion#python#CompletionItemFilter',
+\})

ale_linters/qml/qmlfmt.vim

@@ -0,0 +1,40 @@
+" Author: pylipp (www.github.com/pylipp)
+" Description: qmlfmt for QML files
+
+let g:ale_qml_qmlfmt_executable = get(g:, 'ale_qml_qmlfmt_executable', 'qmlfmt')
+
+function! ale_linters#qml#qmlfmt#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'qml_qmlfmt_executable')
+endfunction
+
+function! ale_linters#qml#qmlfmt#GetCommand(buffer) abort
+    return ale#Escape(ale_linters#qml#qmlfmt#GetExecutable(a:buffer))
+    \   . ' -e'
+endfunction
+
+" Find lines like
+" Error:11:1: Expected token `}'
+function! ale_linters#qml#qmlfmt#Handle(buffer, lines) abort
+    let l:pattern = '\v^(Error|Warning):(\d+):(\d+): (.+)$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        let l:item = {
+        \   'lnum': l:match[2] + 0,
+        \   'col': l:match[3] + 0,
+        \   'text': l:match[4],
+        \   'type': l:match[1] is# 'Warning' ? 'W' : 'E',
+        \}
+        call add(l:output, l:item)
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('qml', {
+\   'name': 'qmlfmt',
+\   'output_stream': 'stderr',
+\   'executable_callback': 'ale_linters#qml#qmlfmt#GetExecutable',
+\   'command_callback': 'ale_linters#qml#qmlfmt#GetCommand',
+\   'callback': 'ale_linters#qml#qmlfmt#Handle',
+\})

ale_linters/r/lintr.vim

@@ -22,7 +22,7 @@ function! ale_linters#r#lintr#GetCommand(buffer) abort
     \   . l:lint_cmd
 
     return ale#path#BufferCdString(a:buffer)
-    \   . 'Rscript -e '
+    \   . 'Rscript --vanilla -e '
     \   . ale#Escape(l:cmd_string) . ' %t'
 endfunction
 

ale_linters/reason/ols.vim

@@ -2,7 +2,7 @@
 " Description: A language server for Reason
 
 call ale#Set('reason_ols_executable', 'ocaml-language-server')
-call ale#Set('reason_ols_use_global', 0)
+call ale#Set('reason_ols_use_global', get(g:, 'ale_use_global_executables', 0))
 
 call ale#linter#Define('reason', {
 \   'name': 'ols',

ale_linters/ruby/reek.vim

@@ -4,21 +4,27 @@
 call ale#Set('ruby_reek_show_context', 0)
 call ale#Set('ruby_reek_show_wiki_link', 0)
 
-function! ale_linters#ruby#reek#Handle(buffer, lines) abort
-    let l:output = []
+function! ale_linters#ruby#reek#VersionCheck(buffer) abort
+    " If we have previously stored the version number in a cache, then
+    " don't look it up again.
+    if ale#semver#HasVersion('reek')
+        " Returning an empty string skips this command.
+        return ''
+    endif
 
-    for l:error in ale#util#FuzzyJSONDecode(a:lines, [])
-        for l:location in l:error.lines
-            call add(l:output, {
-            \    'lnum': l:location,
-            \    'type': 'W',
-            \    'text': s:BuildText(a:buffer, l:error),
-            \    'code': l:error.smell_type,
-            \})
-        endfor
-    endfor
+    return 'reek --version'
+endfunction
 
-    return l:output
+function! ale_linters#ruby#reek#GetCommand(buffer, version_output) abort
+    let l:version = ale#semver#GetVersion('reek', a:version_output)
+
+    " Tell reek what the filename is if the version of reek is new enough.
+    let l:display_name_args = ale#semver#GTE(l:version, [5, 0, 0])
+    \   ? ' --stdin-filename %s'
+    \   : ''
+
+    return 'reek -f json --no-progress --no-color'
+    \   . l:display_name_args
 endfunction
 
 function! s:BuildText(buffer, error) abort
@@ -37,9 +43,29 @@ function! s:BuildText(buffer, error) abort
     return join(l:parts, ' ')
 endfunction
 
+function! ale_linters#ruby#reek#Handle(buffer, lines) abort
+    let l:output = []
+
+    for l:error in ale#util#FuzzyJSONDecode(a:lines, [])
+        for l:location in l:error.lines
+            call add(l:output, {
+            \    'lnum': l:location,
+            \    'type': 'W',
+            \    'text': s:BuildText(a:buffer, l:error),
+            \    'code': l:error.smell_type,
+            \})
+        endfor
+    endfor
+
+    return l:output
+endfunction
+
 call ale#linter#Define('ruby', {
-\    'name': 'reek',
-\    'executable': 'reek',
-\    'command': 'reek -f json --no-progress --no-color',
+\   'name': 'reek',
+\   'executable': 'reek',
+\   'command_chain': [
+\       {'callback': 'ale_linters#ruby#reek#VersionCheck'},
+\       {'callback': 'ale_linters#ruby#reek#GetCommand'},
+\   ],
 \    'callback': 'ale_linters#ruby#reek#Handle',
 \})

ale_linters/rust/cargo.vim

@@ -4,6 +4,9 @@
 
 call ale#Set('rust_cargo_use_check', 1)
 call ale#Set('rust_cargo_check_all_targets', 0)
+call ale#Set('rust_cargo_check_examples', 0)
+call ale#Set('rust_cargo_check_tests', 0)
+call ale#Set('rust_cargo_avoid_whole_workspace', 1)
 call ale#Set('rust_cargo_default_feature_behavior', 'default')
 call ale#Set('rust_cargo_include_features', '')
 
@@ -31,12 +34,30 @@ function! ale_linters#rust#cargo#GetCommand(buffer, version_output) abort
     let l:use_all_targets = l:use_check
     \   && ale#Var(a:buffer, 'rust_cargo_check_all_targets')
     \   && ale#semver#GTE(l:version, [0, 22, 0])
+    let l:use_examples = l:use_check
+    \   && ale#Var(a:buffer, 'rust_cargo_check_examples')
+    \   && ale#semver#GTE(l:version, [0, 22, 0])
+    let l:use_tests = l:use_check
+    \   && ale#Var(a:buffer, 'rust_cargo_check_tests')
+    \   && ale#semver#GTE(l:version, [0, 22, 0])
 
     let l:include_features = ale#Var(a:buffer, 'rust_cargo_include_features')
     if !empty(l:include_features)
         let l:include_features = ' --features ' . ale#Escape(l:include_features)
     endif
 
+    let l:avoid_whole_workspace = ale#Var(a:buffer, 'rust_cargo_avoid_whole_workspace')
+    let l:nearest_cargo_prefix = ''
+
+    if l:avoid_whole_workspace
+        let l:nearest_cargo = ale#path#FindNearestFile(a:buffer, 'Cargo.toml')
+        let l:nearest_cargo_dir = fnamemodify(l:nearest_cargo, ':h')
+
+        if l:nearest_cargo_dir isnot# '.'
+            let l:nearest_cargo_prefix = 'cd '. ale#Escape(l:nearest_cargo_dir) .' && '
+        endif
+    endif
+
     let l:default_feature_behavior = ale#Var(a:buffer, 'rust_cargo_default_feature_behavior')
     if l:default_feature_behavior is# 'all'
         let l:include_features = ''
@@ -47,9 +68,11 @@ function! ale_linters#rust#cargo#GetCommand(buffer, version_output) abort
         let l:default_feature = ''
     endif
 
-    return 'cargo '
+    return l:nearest_cargo_prefix . 'cargo '
     \   . (l:use_check ? 'check' : 'build')
     \   . (l:use_all_targets ? ' --all-targets' : '')
+    \   . (l:use_examples ? ' --examples' : '')
+    \   . (l:use_tests ? ' --tests' : '')
     \   . ' --frozen --message-format=json -q'
     \   . l:default_feature
     \   . l:include_features

ale_linters/rust/rls.vim

@@ -12,12 +12,11 @@ function! ale_linters#rust#rls#GetCommand(buffer) abort
     let l:executable = ale_linters#rust#rls#GetExecutable(a:buffer)
     let l:toolchain = ale#Var(a:buffer, 'rust_rls_toolchain')
 
-    return ale#Escape(l:executable)
-    \   . ' +' . ale#Escape(l:toolchain)
-endfunction
-
-function! ale_linters#rust#rls#GetLanguage(buffer) abort
-    return 'rust'
+    if empty(l:toolchain)
+      return ale#Escape(l:executable)
+    else
+      return ale#Escape(l:executable) . ' +' . ale#Escape(l:toolchain)
+    endif
 endfunction
 
 function! ale_linters#rust#rls#GetProjectRoot(buffer) abort
@@ -31,6 +30,6 @@ call ale#linter#Define('rust', {
 \   'lsp': 'stdio',
 \   'executable_callback': 'ale_linters#rust#rls#GetExecutable',
 \   'command_callback': 'ale_linters#rust#rls#GetCommand',
-\   'language_callback': 'ale_linters#rust#rls#GetLanguage',
+\   'language': 'rust',
 \   'project_root_callback': 'ale_linters#rust#rls#GetProjectRoot',
 \})

ale_linters/sass/sasslint.vim

@@ -1,8 +1,9 @@
-" Author: KabbAmine - https://github.com/KabbAmine
+" Author: KabbAmine - https://github.com/KabbAmine,
+"   Ben Falconer <ben@falconers.me.uk>
 
 call ale#linter#Define('sass', {
 \   'name': 'sasslint',
 \   'executable': 'sass-lint',
-\   'command': 'sass-lint -v -q -f compact %t',
+\   'command_callback': 'ale#handlers#sasslint#GetCommand',
 \   'callback': 'ale#handlers#css#HandleCSSLintFormat',
 \})

ale_linters/sass/stylelint.vim

@@ -1,7 +1,7 @@
 " Author: diartyz <diartyz@gmail.com>
 
 call ale#Set('sass_stylelint_executable', 'stylelint')
-call ale#Set('sass_stylelint_use_global', 0)
+call ale#Set('sass_stylelint_use_global', get(g:, 'ale_use_global_executables', 0))
 
 function! ale_linters#sass#stylelint#GetExecutable(buffer) abort
     return ale#node#FindExecutable(a:buffer, 'sass_stylelint', [

ale_linters/scala/fsc.vim

@@ -0,0 +1,29 @@
+" Author: Nils Leuzinger - https://github.com/PawkyPenguin
+" Description: Basic scala support using fsc
+"
+function! ale_linters#scala#fsc#GetExecutable(buffer) abort
+    if index(split(getbufvar(a:buffer, '&filetype'), '\.'), 'sbt') >= 0
+        " Don't check sbt files
+        return ''
+    endif
+
+    return 'fsc'
+endfunction
+
+function! ale_linters#scala#fsc#GetCommand(buffer) abort
+    let l:executable = ale_linters#scala#fsc#GetExecutable(a:buffer)
+
+    if empty(l:executable)
+        return ''
+    endif
+
+    return ale#Escape(l:executable) . ' -Ystop-after:parser %t'
+endfunction
+
+call ale#linter#Define('scala', {
+\   'name': 'fsc',
+\   'executable_callback': 'ale_linters#scala#fsc#GetExecutable',
+\   'command_callback': 'ale_linters#scala#fsc#GetCommand',
+\   'callback': 'ale#handlers#scala#HandleScalacLintFormat',
+\   'output_stream': 'stderr',
+\})

ale_linters/scala/scalac.vim

@@ -4,7 +4,7 @@
 
 function! ale_linters#scala#scalac#GetExecutable(buffer) abort
     if index(split(getbufvar(a:buffer, '&filetype'), '\.'), 'sbt') >= 0
-        " Don't check sbt files with scalac.
+        " Don't check sbt files
         return ''
     endif
 
@@ -21,45 +21,10 @@ function! ale_linters#scala#scalac#GetCommand(buffer) abort
     return ale#Escape(l:executable) . ' -Ystop-after:parser %t'
 endfunction
 
-function! ale_linters#scala#scalac#Handle(buffer, lines) abort
-    " Matches patterns line the following:
-    "
-    " /var/folders/5q/20rgxx3x1s34g3m14n5bq0x80000gn/T/vv6pSsy/0:26: error: expected class or object definition
-    let l:pattern = '^.\+:\(\d\+\): \(\w\+\): \(.\+\)'
-    let l:output = []
-    let l:ln = 0
-
-    for l:line in a:lines
-        let l:ln = l:ln + 1
-        let l:match = matchlist(l:line, l:pattern)
-
-        if len(l:match) == 0
-            continue
-        endif
-
-        let l:text = l:match[3]
-        let l:type = l:match[2] is# 'error' ? 'E' : 'W'
-        let l:col = 0
-
-        if l:ln + 1 < len(a:lines)
-            let l:col = stridx(a:lines[l:ln + 1], '^')
-        endif
-
-        call add(l:output, {
-        \   'lnum': l:match[1] + 0,
-        \   'col': l:col + 1,
-        \   'text': l:text,
-        \   'type': l:type,
-        \})
-    endfor
-
-    return l:output
-endfunction
-
 call ale#linter#Define('scala', {
 \   'name': 'scalac',
 \   'executable_callback': 'ale_linters#scala#scalac#GetExecutable',
 \   'command_callback': 'ale_linters#scala#scalac#GetCommand',
-\   'callback': 'ale_linters#scala#scalac#Handle',
+\   'callback': 'ale#handlers#scala#HandleScalacLintFormat',
 \   'output_stream': 'stderr',
 \})

ale_linters/scss/sasslint.vim

@@ -1,8 +1,18 @@
-" Author: KabbAmine - https://github.com/KabbAmine
+" Author: KabbAmine - https://github.com/KabbAmine, Ben Falconer
+" <ben@falconers.me.uk>
+
+function! ale_linters#scss#sasslint#GetCommand(buffer) abort
+    return ale#path#BufferCdString(a:buffer)
+    \   . ale#Escape('sass-lint')
+    \   . ' -v'
+    \   . ' -q'
+    \   . ' -f compact'
+    \   . ' %t'
+endfunction
 
 call ale#linter#Define('scss', {
 \   'name': 'sasslint',
 \   'executable': 'sass-lint',
-\   'command': 'sass-lint -v -q -f compact %t',
+\   'command_callback': 'ale_linters#scss#sasslint#GetCommand',
 \   'callback': 'ale#handlers#css#HandleCSSLintFormat',
 \})

ale_linters/scss/stylelint.vim

@@ -1,7 +1,7 @@
 " Author: diartyz <diartyz@gmail.com>
 
 call ale#Set('scss_stylelint_executable', 'stylelint')
-call ale#Set('scss_stylelint_use_global', 0)
+call ale#Set('scss_stylelint_use_global', get(g:, 'ale_use_global_executables', 0))
 
 function! ale_linters#scss#stylelint#GetExecutable(buffer) abort
     return ale#node#FindExecutable(a:buffer, 'scss_stylelint', [

ale_linters/sh/language_server.vim

@@ -0,0 +1,33 @@
+" Author: Christian Höltje (https://docwhat.org/)
+" Description: BASH Language server integration for ALE
+scriptencoding utf-8
+
+call ale#Set('sh_language_server_executable', 'bash-language-server')
+call ale#Set('sh_language_server_use_global', get(g:, 'ale_use_global_executables', 0))
+
+function! ale_linters#sh#language_server#GetExecutable(buffer) abort
+    return ale#node#FindExecutable(a:buffer, 'sh_language_server', [
+    \   'node_modules/.bin/bash-language-server',
+    \])
+endfunction
+
+function! ale_linters#sh#language_server#GetCommand(buffer) abort
+    let l:exe = ale#Escape(ale_linters#sh#language_server#GetExecutable(a:buffer))
+
+    return l:exe . ' start'
+endfunction
+
+function! ale_linters#sh#language_server#GetProjectRoot(buffer) abort
+    let l:git_path = ale#path#FindNearestDirectory(a:buffer, '.git')
+
+    return !empty(l:git_path) ? fnamemodify(l:git_path, ':h:h') : ''
+endfunction
+
+call ale#linter#Define('sh', {
+\   'name': 'language_server',
+\   'lsp': 'stdio',
+\   'executable_callback': 'ale_linters#sh#language_server#GetExecutable',
+\   'command_callback': 'ale_linters#sh#language_server#GetCommand',
+\   'language': 'sh',
+\   'project_root_callback': 'ale_linters#sh#language_server#GetProjectRoot',
+\})

ale_linters/stylus/stylelint.vim

@@ -2,7 +2,7 @@
 
 call ale#Set('stylus_stylelint_executable', 'stylelint')
 call ale#Set('stylus_stylelint_options', '')
-call ale#Set('stylus_stylelint_use_global', 0)
+call ale#Set('stylus_stylelint_use_global', get(g:, 'ale_use_global_executables', 0))
 
 function! ale_linters#stylus#stylelint#GetExecutable(buffer) abort
     return ale#node#FindExecutable(a:buffer, 'stylus_stylelint', [

ale_linters/typescript/tslint.vim

@@ -4,7 +4,7 @@
 call ale#Set('typescript_tslint_executable', 'tslint')
 call ale#Set('typescript_tslint_config_path', '')
 call ale#Set('typescript_tslint_rules_dir', '')
-call ale#Set('typescript_tslint_use_global', 0)
+call ale#Set('typescript_tslint_use_global', get(g:, 'ale_use_global_executables', 0))
 call ale#Set('typescript_tslint_ignore_empty_files', 0)
 
 function! ale_linters#typescript#tslint#GetExecutable(buffer) abort

ale_linters/typescript/tsserver.vim

@@ -3,17 +3,13 @@
 
 call ale#Set('typescript_tsserver_executable', 'tsserver')
 call ale#Set('typescript_tsserver_config_path', '')
-call ale#Set('typescript_tsserver_use_global', 0)
+call ale#Set('typescript_tsserver_use_global', get(g:, 'ale_use_global_executables', 0))
 
 " These functions need to be defined just to comply with the API for LSP.
 function! ale_linters#typescript#tsserver#GetProjectRoot(buffer) abort
     return ''
 endfunction
 
-function! ale_linters#typescript#tsserver#GetLanguage(buffer) abort
-    return ''
-endfunction
-
 function! ale_linters#typescript#tsserver#GetExecutable(buffer) abort
     return ale#node#FindExecutable(a:buffer, 'typescript_tsserver', [
     \   'node_modules/.bin/tsserver',
@@ -26,5 +22,5 @@ call ale#linter#Define('typescript', {
 \   'executable_callback': 'ale_linters#typescript#tsserver#GetExecutable',
 \   'command_callback': 'ale_linters#typescript#tsserver#GetExecutable',
 \   'project_root_callback': 'ale_linters#typescript#tsserver#GetProjectRoot',
-\   'language_callback': 'ale_linters#typescript#tsserver#GetLanguage',
+\   'language': '',
 \})

ale_linters/vim/vint.vim

@@ -2,31 +2,38 @@
 " Description: This file adds support for checking Vim code with Vint.
 
 " This flag can be used to change enable/disable style issues.
-let g:ale_vim_vint_show_style_issues =
-\   get(g:, 'ale_vim_vint_show_style_issues', 1)
-let s:enable_neovim = has('nvim') ? ' --enable-neovim ' : ''
+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})"'
 
+function! ale_linters#vim#vint#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'vim_vint_executable')
+endfunction
+
 function! ale_linters#vim#vint#VersionCommand(buffer) abort
+    let l:executable = ale_linters#vim#vint#GetExecutable(a:buffer)
+
     " Check the Vint version if we haven't checked it already.
-    return !ale#semver#HasVersion('vint')
-    \   ? 'vint --version'
+    return !ale#semver#HasVersion(l:executable)
+    \   ? ale#Escape(l:executable) . ' --version'
     \   : ''
 endfunction
 
 function! ale_linters#vim#vint#GetCommand(buffer, version_output) abort
-    let l:version = ale#semver#GetVersion('vint', a:version_output)
+    let l:executable = ale_linters#vim#vint#GetExecutable(a:buffer)
+    let l:version = ale#semver#GetVersion(l:executable, a:version_output)
 
     let l:can_use_no_color_flag = empty(l:version)
     \   || ale#semver#GTE(l:version, [0, 3, 7])
 
     let l:warning_flag = ale#Var(a:buffer, 'vim_vint_show_style_issues') ? '-s' : '-w'
 
-    return 'vint '
-    \   . l:warning_flag . ' '
-    \   . (l:can_use_no_color_flag ? '--no-color ' : '')
+    return ale#Escape(l:executable)
+    \   . ' ' . l:warning_flag
+    \   . (l:can_use_no_color_flag ? ' --no-color' : '')
     \   . s:enable_neovim
-    \   . s:format
+    \   . ' ' . s:format
     \   . ' %t'
 endfunction
 
@@ -58,7 +65,7 @@ endfunction
 
 call ale#linter#Define('vim', {
 \   'name': 'vint',
-\   'executable': 'vint',
+\   'executable_callback': 'ale_linters#vim#vint#GetExecutable',
 \   'command_chain': [
 \       {'callback': 'ale_linters#vim#vint#VersionCommand', 'output_stream': 'stderr'},
 \       {'callback': 'ale_linters#vim#vint#GetCommand', 'output_stream': 'stdout'},

ale_linters/yaml/swaglint.vim

@@ -2,7 +2,7 @@
 " Description: This file adds support for linting Swagger / OpenAPI documents using swaglint
 
 call ale#Set('yaml_swaglint_executable', 'swaglint')
-call ale#Set('yaml_swaglint_use_global', 0)
+call ale#Set('yaml_swaglint_use_global', get(g:, 'ale_use_global_executables', 0))
 
 function! ale_linters#yaml#swaglint#GetExecutable(buffer) abort
     return ale#node#FindExecutable(a:buffer, 'yaml_swaglint', [

ale_linters/yaml/yamllint.vim

@@ -20,21 +20,31 @@ function! ale_linters#yaml#yamllint#Handle(buffer, lines) abort
     " Matches patterns line the following:
     " something.yaml:1:1: [warning] missing document start "---" (document-start)
     " something.yml:2:1: [error] syntax error: expected the node content, but found '<stream end>'
-    let l:pattern = '^.*:\(\d\+\):\(\d\+\): \[\(error\|warning\)\] \(.\+\)$'
+    let l:pattern = '\v^.*:(\d+):(\d+): \[(error|warning)\] (.+)$'
     let l:output = []
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
-        let l:line = l:match[1] + 0
-        let l:col = l:match[2] + 0
-        let l:type = l:match[3]
-        let l:text = l:match[4]
+        let l:item = {
+        \   'lnum': l:match[1] + 0,
+        \   'col': l:match[2] + 0,
+        \   'text': l:match[4],
+        \   'type': l:match[3] is# 'error' ? 'E' : 'W',
+        \}
 
-        call add(l:output, {
-        \   'lnum': l:line,
-        \   'col': l:col,
-        \   'text': l:text,
-        \   'type': l:type is# 'error' ? 'E' : 'W',
-        \})
+        let l:code_match = matchlist(l:item.text, '\v^(.+) \(([^)]+)\)$')
+
+        if !empty(l:code_match)
+            if l:code_match[2] is# 'trailing-spaces'
+            \&& !ale#Var(a:buffer, 'warn_about_trailing_whitespace')
+                " Skip warnings for trailing whitespace if the option is off.
+                continue
+            endif
+
+            let l:item.text = l:code_match[1]
+            let l:item.code = l:code_match[2]
+        endif
+
+        call add(l:output, l:item)
     endfor
 
     return l:output

autoload/ale.vim

@@ -2,38 +2,20 @@
 " Description: Primary code path for the plugin
 "   Manages execution of linters when requested by autocommands
 
+" Strings used for severity in the echoed message
+let g:ale_echo_msg_error_str = get(g:, 'ale_echo_msg_error_str', 'Error')
+let g:ale_echo_msg_info_str = get(g:, 'ale_echo_msg_info_str', 'Info')
+let g:ale_echo_msg_warning_str = get(g:, 'ale_echo_msg_warning_str', 'Warning')
+" Ignoring linters, for disabling some, or ignoring LSP diagnostics.
+let g:ale_linters_ignore = get(g:, 'ale_linters_ignore', {})
+
 let s:lint_timer = -1
 let s:queued_buffer_number = -1
 let s:should_lint_file_for_buffer = {}
-let s:error_delay_ms = 1000 * 60 * 2
-
-let s:timestamp_map = {}
-
-" Given a key for a script variable for tracking the time to wait until
-" a given function should be called, a funcref for a function to call, and
-" a List of arguments, call the function and return whatever value it returns.
-"
-" If the function throws an exception, then the function will not be called
-" for a while, and 0 will be returned instead.
-function! ale#CallWithCooldown(timestamp_key, func, arglist) abort
-    let l:now = ale#util#ClockMilliseconds()
-
-    if l:now < get(s:timestamp_map, a:timestamp_key, -1)
-        return 0
-    endif
-
-    let s:timestamp_map[a:timestamp_key] = l:now + s:error_delay_ms
-
-    let l:return_value = call(a:func, a:arglist)
-
-    let s:timestamp_map[a:timestamp_key] = -1
-
-    return l:return_value
-endfunction
 
 " Return 1 if a file is too large for ALE to handle.
-function! ale#FileTooLarge() abort
-    let l:max = ale#Var(bufnr(''), 'maximum_file_size')
+function! ale#FileTooLarge(buffer) abort
+    let l:max = getbufvar(a:buffer, 'ale_maximum_file_size', get(g:, 'ale_maximum_file_size', 0))
 
     return l:max > 0 ? (line2byte(line('$') + 1) > l:max) : 0
 endfunction
@@ -46,39 +28,47 @@ function! ale#ShouldDoNothing(buffer) abort
     " The checks are split into separate if statements to make it possible to
     " profile each check individually with Vim's profiling tools.
 
+    " Do nothing if ALE is disabled.
+    if !getbufvar(a:buffer, 'ale_enabled', get(g:, 'ale_enabled', 0))
+        return 1
+    endif
+
     " Don't perform any checks when newer NeoVim versions are exiting.
     if get(v:, 'exiting', v:null) isnot v:null
         return 1
     endif
 
-    " Do nothing for blacklisted files
-    if index(g:ale_filetype_blacklist, getbufvar(a:buffer, '&filetype')) >= 0
+    let l:filetype = getbufvar(a:buffer, '&filetype')
+
+    " Do nothing when there's no filetype.
+    if l:filetype is# ''
         return 1
     endif
 
-    " Do nothing if running from command mode
+    " Do nothing for blacklisted files.
+    if index(get(g:, 'ale_filetype_blacklist', []), l:filetype) >= 0
+        return 1
+    endif
+
+    " Do nothing if running from command mode.
     if s:getcmdwintype_exists && !empty(getcmdwintype())
         return 1
     endif
 
     let l:filename = fnamemodify(bufname(a:buffer), ':t')
 
+    " Do nothing for directories.
     if l:filename is# '.'
         return 1
     endif
 
-    " Do nothing if running in the sandbox
+    " Do nothing if running in the sandbox.
     if ale#util#InSandbox()
         return 1
     endif
 
-    " Do nothing if ALE is disabled.
-    if !ale#Var(a:buffer, 'enabled')
-        return 1
-    endif
-
     " Do nothing if the file is too large.
-    if ale#FileTooLarge()
+    if ale#FileTooLarge(a:buffer)
         return 1
     endif
 
@@ -101,30 +91,22 @@ function! ale#Queue(delay, ...) abort
     let l:linting_flag = get(a:000, 0, '')
     let l:buffer = get(a:000, 1, bufnr(''))
 
-    return ale#CallWithCooldown(
-    \   'dont_queue_until',
-    \   function('s:ALEQueueImpl'),
-    \   [a:delay, l:linting_flag, l:buffer],
-    \)
-endfunction
-
-function! s:ALEQueueImpl(delay, linting_flag, buffer) abort
-    if a:linting_flag isnot# '' && a:linting_flag isnot# 'lint_file'
+    if l:linting_flag isnot# '' && l:linting_flag isnot# 'lint_file'
         throw "linting_flag must be either '' or 'lint_file'"
     endif
 
-    if type(a:buffer) != type(0)
+    if type(l:buffer) != type(0)
         throw 'buffer_number must be a Number'
     endif
 
-    if ale#ShouldDoNothing(a:buffer)
+    if ale#ShouldDoNothing(l:buffer)
         return
     endif
 
     " Remember that we want to check files for this buffer.
     " We will remember this until we finally run the linters, via any event.
-    if a:linting_flag is# 'lint_file'
-        let s:should_lint_file_for_buffer[a:buffer] = 1
+    if l:linting_flag is# 'lint_file'
+        let s:should_lint_file_for_buffer[l:buffer] = 1
     endif
 
     if s:lint_timer != -1
@@ -132,24 +114,24 @@ function! s:ALEQueueImpl(delay, linting_flag, buffer) abort
         let s:lint_timer = -1
     endif
 
-    let l:linters = ale#linter#Get(getbufvar(a:buffer, '&filetype'))
+    let l:linters = ale#linter#Get(getbufvar(l:buffer, '&filetype'))
 
     " Don't set up buffer data and so on if there are no linters to run.
     if empty(l:linters)
         " If we have some previous buffer data, then stop any jobs currently
         " running and clear everything.
-        if has_key(g:ale_buffer_info, a:buffer)
-            call ale#engine#RunLinters(a:buffer, [], 1)
+        if has_key(g:ale_buffer_info, l:buffer)
+            call ale#engine#RunLinters(l:buffer, [], 1)
         endif
 
         return
     endif
 
     if a:delay > 0
-        let s:queued_buffer_number = a:buffer
+        let s:queued_buffer_number = l:buffer
         let s:lint_timer = timer_start(a:delay, function('ale#Lint'))
     else
-        call ale#Lint(-1, a:buffer)
+        call ale#Lint(-1, l:buffer)
     endif
 endfunction
 
@@ -165,30 +147,29 @@ function! ale#Lint(...) abort
         let l:buffer = bufnr('')
     endif
 
-    return ale#CallWithCooldown(
-    \   'dont_lint_until',
-    \   function('s:ALELintImpl'),
-    \   [l:buffer],
-    \)
-endfunction
-
-function! s:ALELintImpl(buffer) abort
-    if ale#ShouldDoNothing(a:buffer)
+    if ale#ShouldDoNothing(l:buffer)
         return
     endif
 
     " Use the filetype from the buffer
-    let l:linters = ale#linter#Get(getbufvar(a:buffer, '&filetype'))
+    let l:filetype = getbufvar(l:buffer, '&filetype')
+    let l:linters = ale#linter#Get(l:filetype)
     let l:should_lint_file = 0
 
     " Check if we previously requested checking the file.
-    if has_key(s:should_lint_file_for_buffer, a:buffer)
-        unlet s:should_lint_file_for_buffer[a:buffer]
+    if has_key(s:should_lint_file_for_buffer, l:buffer)
+        unlet s:should_lint_file_for_buffer[l:buffer]
         " Lint files if they exist.
-        let l:should_lint_file = filereadable(expand('#' . a:buffer . ':p'))
+        let l:should_lint_file = filereadable(expand('#' . l:buffer . ':p'))
     endif
 
-    call ale#engine#RunLinters(a:buffer, l:linters, l:should_lint_file)
+    " Apply ignore lists for linters only if needed.
+    let l:ignore_config = ale#Var(l:buffer, 'linters_ignore')
+    let l:linters = !empty(l:ignore_config)
+    \   ? ale#engine#ignore#Exclude(l:filetype, l:linters, l:ignore_config)
+    \   : l:linters
+
+    call ale#engine#RunLinters(l:buffer, l:linters, l:should_lint_file)
 endfunction
 
 " Reset flags indicating that files should be checked for all buffers.
@@ -196,10 +177,6 @@ function! ale#ResetLintFileMarkers() abort
     let s:should_lint_file_for_buffer = {}
 endfunction
 
-function! ale#ResetErrorDelays() abort
-    let s:timestamp_map = {}
-endfunction
-
 let g:ale_has_override = get(g:, 'ale_has_override', {})
 
 " Call has(), but check a global Dictionary so we can force flags on or off

autoload/ale/balloon.vim

@@ -12,7 +12,21 @@ function! ale#balloon#MessageForPos(bufnr, lnum, col) abort
     let l:loclist = get(g:ale_buffer_info, a:bufnr, {'loclist': []}).loclist
     let l:index = ale#util#BinarySearch(l:loclist, a:bufnr, a:lnum, a:col)
 
-    return l:index >= 0 ? l:loclist[l:index].text : ''
+    " Show the diagnostics message if found, 'Hover' output otherwise
+    if l:index >= 0
+        return l:loclist[l:index].text
+    elseif exists('*balloon_show') || getbufvar(
+    \   a:bufnr,
+    \   'ale_set_balloons_legacy_echo',
+    \   get(g:, 'ale_set_balloons_legacy_echo', 0)
+    \)
+        " Request LSP/tsserver hover information, but only if this version of
+        " Vim supports the balloon_show function, or if we turned a legacy
+        " setting on.
+        call ale#hover#Show(a:bufnr, a:lnum, a:col, {'called_from_balloonexpr': 1})
+    endif
+
+    return ''
 endfunction
 
 function! ale#balloon#Expr() abort
@@ -20,9 +34,26 @@ function! ale#balloon#Expr() abort
 endfunction
 
 function! ale#balloon#Disable() abort
-    set noballooneval balloonexpr=
+    if has('balloon_eval_term')
+        set noballoonevalterm
+    endif
+
+    set noballooneval
+    set balloonexpr=
 endfunction
 
 function! ale#balloon#Enable() abort
-    set ballooneval balloonexpr=ale#balloon#Expr()
+    if !has('balloon_eval') && !has('balloon_eval_term')
+        return
+    endif
+
+    if has('balloon_eval')
+        set ballooneval
+    endif
+
+    if has('balloon_eval_term')
+        set balloonevalterm
+    endif
+
+    set balloonexpr=ale#balloon#Expr()
 endfunction

autoload/ale/c.vim

@@ -1,6 +1,7 @@
-" Author: gagbo <gagbobada@gmail.com>, w0rp <devw0rp@gmail.com>
+" Author: gagbo <gagbobada@gmail.com>, w0rp <devw0rp@gmail.com>, roel0 <postelmansroel@gmail.com>
 " Description: Functions for integrating with C-family linters.
 
+call ale#Set('c_parse_makefile', 0)
 let s:sep = has('win32') ? '\' : '/'
 
 function! ale#c#FindProjectRoot(buffer) abort
@@ -22,6 +23,88 @@ function! ale#c#FindProjectRoot(buffer) abort
     return ''
 endfunction
 
+function! ale#c#ParseCFlagsToList(path_prefix, cflags) abort
+    let l:cflags_list = []
+    let l:previous_options = []
+
+    for l:option in a:cflags
+        call add(l:previous_options, l:option)
+        " Check if cflag contained a '-' and should not have been splitted
+        let l:option_list = split(l:option, '\zs')
+        if l:option_list[-1] isnot# ' '
+            continue
+        endif
+
+        let l:option = join(l:previous_options, '-')
+        let l:previous_options = []
+
+        let l:option = '-' . substitute(l:option, '^\s*\(.\{-}\)\s*$', '\1', '')
+
+        " Fix relative paths if needed
+        if stridx(l:option, '-I') >= 0 &&
+           \ stridx(l:option, '-I' . s:sep) < 0
+            let l:rel_path = join(split(l:option, '\zs')[2:], '')
+            let l:rel_path = substitute(l:rel_path, '"', '', 'g')
+            let l:rel_path = substitute(l:rel_path, '''', '', 'g')
+            let l:option = ale#Escape('-I' . a:path_prefix .
+                                      \ s:sep . l:rel_path)
+        endif
+
+        " Parse the cflag
+        if stridx(l:option, '-I') >= 0 ||
+           \ stridx(l:option, '-D') >= 0
+            if index(l:cflags_list, l:option) < 0
+                call add(l:cflags_list, l:option)
+            endif
+        endif
+    endfor
+
+    return l:cflags_list
+endfunction
+
+function! ale#c#ParseCFlags(buffer, stdout_make) abort
+    if !g:ale_c_parse_makefile
+        return []
+    endif
+
+    let l:buffer_filename = expand('#' . a:buffer . ':t')
+    let l:cflags = []
+    for l:lines in split(a:stdout_make, '\\n')
+        if stridx(l:lines, l:buffer_filename) >= 0
+            let l:cflags = split(l:lines, '-')
+            break
+        endif
+    endfor
+
+    let l:makefile_path = ale#path#FindNearestFile(a:buffer, 'Makefile')
+    return ale#c#ParseCFlagsToList(fnamemodify(l:makefile_path, ':p:h'), l:cflags)
+endfunction
+
+function! ale#c#GetCFlags(buffer, output) abort
+    let l:cflags = ' '
+
+    if g:ale_c_parse_makefile && !empty(a:output)
+        let l:cflags = join(ale#c#ParseCFlags(a:buffer, join(a:output, '\n')), ' ') . ' '
+    endif
+
+    if l:cflags is# ' '
+        let l:cflags = ale#c#IncludeOptions(ale#c#FindLocalHeaderPaths(a:buffer))
+    endif
+
+    return l:cflags
+endfunction
+
+function! ale#c#GetMakeCommand(buffer) abort
+    if g:ale_c_parse_makefile
+        let l:makefile_path = ale#path#FindNearestFile(a:buffer, 'Makefile')
+        if !empty(l:makefile_path)
+            return 'cd '. fnamemodify(l:makefile_path, ':p:h') . ' && make -n'
+        endif
+    endif
+
+    return ''
+endfunction
+
 " Given a buffer number, search for a project root, and output a List
 " of directories to include based on some heuristics.
 "

autoload/ale/completion.vim

@@ -1,6 +1,10 @@
 " Author: w0rp <devw0rp@gmail.com>
 " Description: Completion support for LSP linters
 
+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 s:timer_id = -1
 let s:last_done_pos = []
 
@@ -28,6 +32,8 @@ let s:LSP_COMPLETION_REFERENCE_KIND = 18
 " the insert cursor is. If one of these matches, we'll check for completions.
 let s:should_complete_map = {
 \   '<default>': '\v[a-zA-Z$_][a-zA-Z$_0-9]*$|\.$',
+\   'typescript': '\v[a-zA-Z$_][a-zA-Z$_0-9]*$|\.$|''$|"$',
+\   'rust': '\v[a-zA-Z$_][a-zA-Z$_0-9]*$|\.$|::$',
 \}
 
 " Regular expressions for finding the start column to replace with completion.
@@ -38,6 +44,8 @@ let s:omni_start_map = {
 " A map of exact characters for triggering LSP completions.
 let s:trigger_character_map = {
 \   '<default>': ['.'],
+\   'typescript': ['.', '''', '"'],
+\   'rust': ['.', '::'],
 \}
 
 function! s:GetFiletypeValue(map, filetype) abort
@@ -74,33 +82,49 @@ function! ale#completion#GetTriggerCharacter(filetype, prefix) abort
     return ''
 endfunction
 
-function! ale#completion#Filter(suggestions, prefix) abort
+function! ale#completion#Filter(buffer, suggestions, prefix) abort
+    let l:excluded_words = ale#Var(a:buffer, 'completion_excluded_words')
+
     " For completing...
     "   foo.
     "       ^
     " We need to include all of the given suggestions.
     if a:prefix is# '.'
-        return a:suggestions
+        let l:filtered_suggestions = a:suggestions
+    else
+        let l:filtered_suggestions = []
+
+        " Filter suggestions down to those starting with the prefix we used for
+        " finding suggestions in the first place.
+        "
+        " Some completion tools will include suggestions which don't even start
+        " with the characters we have already typed.
+        for l:item in a:suggestions
+            " A List of String values or a List of completion item Dictionaries
+            " is accepted here.
+            let l:word = type(l:item) == type('') ? 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)
+            endif
+        endfor
     endif
 
-    let l:filtered_suggestions = []
-
-    " Filter suggestions down to those starting with the prefix we used for
-    " finding suggestions in the first place.
-    "
-    " Some completion tools will include suggestions which don't even start
-    " with the characters we have already typed.
-    for l:item in a:suggestions
-        " A List of String values or a List of completion item Dictionaries
-        " is accepted here.
-        let l:word = type(l:item) == type('') ? 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 !empty(l:excluded_words)
+        " Copy the List if needed. We don't want to modify the argument.
+        " We shouldn't make a copy if we don't need to.
+        if l:filtered_suggestions is a:suggestions
+            let l:filtered_suggestions = copy(a:suggestions)
         endif
-    endfor
+
+        " Remove suggestions with words in the exclusion List.
+        call filter(
+        \   l:filtered_suggestions,
+        \   'index(l:excluded_words, type(v:val) is type('''') ? v:val : v:val.word) < 0',
+        \)
+    endif
 
     return l:filtered_suggestions
 endfunction
@@ -178,7 +202,9 @@ function! ale#completion#ParseTSServerCompletions(response) abort
 endfunction
 
 function! ale#completion#ParseTSServerCompletionEntryDetails(response) abort
+    let l:buffer = bufnr('')
     let l:results = []
+    let l:names_with_details = []
 
     for l:suggestion in a:response.body
         let l:displayParts = []
@@ -212,10 +238,44 @@ function! ale#completion#ParseTSServerCompletionEntryDetails(response) abort
         \})
     endfor
 
+    let l:names = getbufvar(l:buffer, 'ale_tsserver_completion_names', [])
+
+    if !empty(l:names) && len(l:names) != len(l:results)
+        let l:names_with_details = map(copy(l:results), 'v:val.word')
+        let l:missing_names = filter(
+        \   copy(l:names),
+        \   'index(l:names_with_details, v:val) < 0',
+        \)
+
+        for l:name in l:missing_names
+            call add(l:results, {
+            \   'word': l:name,
+            \   'kind': 'v',
+            \   'icase': 1,
+            \   'menu': '',
+            \   'info': '',
+            \})
+        endfor
+    endif
+
     return l:results
 endfunction
 
+function! ale#completion#NullFilter(buffer, item) abort
+   return 1
+endfunction
+
 function! ale#completion#ParseLSPCompletions(response) abort
+    let l:buffer = bufnr('')
+    let l:info = get(b:, 'ale_completion_info', {})
+    let l:Filter = get(l:info, 'completion_filter', v:null)
+
+    if l:Filter is v:null
+        let l:Filter = function('ale#completion#NullFilter')
+    else
+        let l:Filter = ale#util#GetFunction(l:Filter)
+    endif
+
     let l:item_list = []
 
     if type(get(a:response, 'result')) is type([])
@@ -228,6 +288,16 @@ function! ale#completion#ParseLSPCompletions(response) abort
     let l:results = []
 
     for l:item in l:item_list
+        if !call(l:Filter, [l:buffer, l:item])
+            continue
+        endif
+
+        let l:word = matchstr(l:item.label, '\v^[^(]+')
+
+        if empty(l:word)
+            continue
+        endif
+
         " See :help complete-items for Vim completion kinds
         if l:item.kind is s:LSP_COMPLETION_METHOD_KIND
             let l:kind = 'm'
@@ -244,14 +314,18 @@ function! ale#completion#ParseLSPCompletions(response) abort
         endif
 
         call add(l:results, {
-        \   'word': l:item.label,
+        \   'word': l:word,
         \   'kind': l:kind,
         \   'icase': 1,
-        \   'menu': l:item.detail,
-        \   'info': l:item.documentation,
+        \   'menu': get(l:item, 'detail', ''),
+        \   'info': get(l:item, 'documentation', ''),
         \})
     endfor
 
+    if has_key(l:info, 'prefix')
+        return ale#completion#Filter(l:buffer, l:results, l:info.prefix)
+    endif
+
     return l:results
 endfunction
 
@@ -264,19 +338,25 @@ function! ale#completion#HandleTSServerResponse(conn_id, response) abort
         return
     endif
 
+    let l:buffer = bufnr('')
     let l:command = get(a:response, 'command', '')
 
     if l:command is# 'completions'
         let l:names = ale#completion#Filter(
+        \   l:buffer,
         \   ale#completion#ParseTSServerCompletions(a:response),
         \   b:ale_completion_info.prefix,
         \)[: 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)
             let b:ale_completion_info.request_id = ale#lsp#Send(
             \   b:ale_completion_info.conn_id,
             \   ale#lsp#tsserver_message#CompletionEntryDetails(
-            \       bufnr(''),
+            \       l:buffer,
             \       b:ale_completion_info.line,
             \       b:ale_completion_info.column,
             \       l:names,
@@ -309,14 +389,13 @@ function! s:GetLSPCompletions(linter) abort
     \   ? function('ale#completion#HandleTSServerResponse')
     \   : function('ale#completion#HandleLSPResponse')
 
-    let l:lsp_details = ale#linter#StartLSP(l:buffer, a:linter, l:Callback)
+    let l:lsp_details = ale#lsp_linter#StartLSP(l:buffer, a:linter, l:Callback)
 
     if empty(l:lsp_details)
         return 0
     endif
 
     let l:id = l:lsp_details.connection_id
-    let l:root = l:lsp_details.project_root
 
     if a:linter.lsp is# 'tsserver'
         let l:message = ale#lsp#tsserver_message#Completions(
@@ -328,7 +407,7 @@ function! s:GetLSPCompletions(linter) abort
     else
         " Send a message saying the buffer has changed first, otherwise
         " completions won't know what text is nearby.
-        call ale#lsp#Send(l:id, ale#lsp#message#DidChange(l:buffer), l:root)
+        call ale#lsp#NotifyForChanges(l:lsp_details)
 
         " For LSP completions, we need to clamp the column to the length of
         " the line. python-language-server and perhaps others do not implement
@@ -344,11 +423,15 @@ function! s:GetLSPCompletions(linter) abort
         \)
     endif
 
-    let l:request_id = ale#lsp#Send(l:id, l:message, l:root)
+    let l:request_id = ale#lsp#Send(l:id, l:message, l:lsp_details.project_root)
 
     if l:request_id
         let b:ale_completion_info.conn_id = l:id
         let b:ale_completion_info.request_id = l:request_id
+
+        if has_key(a:linter, 'completion_filter')
+            let b:ale_completion_info.completion_filter = a:linter.completion_filter
+        endif
     endif
 endfunction
 
@@ -378,10 +461,7 @@ function! ale#completion#GetCompletions() abort
 
     for l:linter in ale#linter#Get(&filetype)
         if !empty(l:linter.lsp)
-            if l:linter.lsp is# 'tsserver'
-            \|| get(g:, 'ale_completion_experimental_lsp_support', 0)
-                call s:GetLSPCompletions(l:linter)
-            endif
+            call s:GetLSPCompletions(l:linter)
         endif
     endfor
 endfunction

autoload/ale/completion/python.vim

@@ -0,0 +1,3 @@
+function! ale#completion#python#CompletionItemFilter(buffer, item) abort
+    return a:item.label !~# '\v^__[a-z_]+__'
+endfunction

autoload/ale/cursor.vim

@@ -1,6 +1,11 @@
 " Author: w0rp <devw0rp@gmail.com>
 " Description: Echoes lint message for the current line, if any
 
+" Controls the milliseconds delay before echoing a message.
+let g:ale_echo_delay = get(g:, 'ale_echo_delay', 10)
+" A string format for the echoed message.
+let g:ale_echo_msg_format = get(g:, 'ale_echo_msg_format', '%code: %%s')
+
 let s:cursor_timer = -1
 let s:last_pos = [0, 0, 0]
 
@@ -51,10 +56,6 @@ function! s:StopCursorTimer() abort
 endfunction
 
 function! ale#cursor#EchoCursorWarning(...) abort
-    return ale#CallWithCooldown('dont_echo_until', function('s:EchoImpl'), [])
-endfunction
-
-function! s:EchoImpl() abort
     if !g:ale_echo_cursor
         return
     endif

autoload/ale/debugging.vim

@@ -51,6 +51,7 @@ let s:global_variable_list = [
 \    'ale_sign_warning',
 \    'ale_statusline_format',
 \    'ale_type_map',
+\    'ale_use_global_executables',
 \    'ale_warn_about_trailing_blank_lines',
 \    'ale_warn_about_trailing_whitespace',
 \]
@@ -167,6 +168,30 @@ function! s:EchoLinterAliases(all_linters) abort
     endfor
 endfunction
 
+function! s:EchoLSPErrorMessages(all_linter_names) abort
+    let l:lsp_error_messages = get(g:, 'ale_lsp_error_messages', {})
+    let l:header_echoed = 0
+
+    for l:linter_name in a:all_linter_names
+        let l:error_list = get(l:lsp_error_messages, l:linter_name, [])
+
+        if !empty(l:error_list)
+            if !l:header_echoed
+                call s:Echo(' LSP Error Messages:')
+                call s:Echo('')
+            endif
+
+            call s:Echo('(Errors for ' . l:linter_name . ')')
+
+            for l:message in l:error_list
+                for l:line in split(l:message, "\n")
+                    call s:Echo(l:line)
+                endfor
+            endfor
+        endif
+    endfor
+endfunction
+
 function! ale#debugging#Info() abort
     let l:filetype = &filetype
 
@@ -189,16 +214,22 @@ function! ale#debugging#Info() abort
     " This must be done after linters are loaded.
     let l:variable_list = s:GetLinterVariables(l:filetype, l:enabled_names)
 
+    let l:fixers = ale#fix#registry#SuggestedFixers(l:filetype)
+    let l:fixers = uniq(sort(l:fixers[0] + l:fixers[1]))
+    let l:fixers_string = join(map(copy(l:fixers), '"\n  " . v:val'), '')
+
     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(' Suggested Fixers: ' . l:fixers_string)
     call s:Echo(' Linter Variables:')
     call s:Echo('')
     call s:EchoLinterVariables(l:variable_list)
     call s:Echo(' Global Variables:')
     call s:Echo('')
     call s:EchoGlobalVariables()
+    call s:EchoLSPErrorMessages(l:all_names)
     call s:Echo('  Command History:')
     call s:Echo('')
     call s:EchoCommandHistory()
@@ -211,3 +242,14 @@ function! ale#debugging#InfoToClipboard() abort
 
     call s:Echo('ALEInfo copied to your clipboard')
 endfunction
+
+function! ale#debugging#InfoToFile(filename) abort
+    let l:expanded_filename = expand(a:filename)
+
+    redir => l:output
+        silent call ale#debugging#Info()
+    redir END
+
+    call writefile(split(l:output, "\n"), l:expanded_filename)
+    call s:Echo('ALEInfo written to ' . l:expanded_filename)
+endfunction

autoload/ale/definition.vim

@@ -13,37 +13,21 @@ function! ale#definition#SetMap(map) abort
     let s:go_to_definition_map = a:map
 endfunction
 
-" This function is used so we can check the execution of commands without
-" running them.
-function! ale#definition#Execute(expr) abort
-    execute a:expr
-endfunction
-
 function! ale#definition#ClearLSPData() abort
     let s:go_to_definition_map = {}
 endfunction
 
-function! ale#definition#Open(options, filename, line, column) abort
-    if a:options.open_in_tab
-        call ale#definition#Execute('tabedit ' . fnameescape(a:filename))
-    else
-        call ale#definition#Execute('edit ' . fnameescape(a:filename))
-    endif
-
-    call cursor(a:line, a:column)
-endfunction
-
 function! ale#definition#HandleTSServerResponse(conn_id, response) abort
     if get(a:response, 'command', '') is# 'definition'
     \&& has_key(s:go_to_definition_map, a:response.request_seq)
         let l:options = remove(s:go_to_definition_map, a:response.request_seq)
 
-        if get(a:response, 'success', v:false) is v:true
+        if get(a:response, 'success', v:false) is v:true && !empty(a:response.body)
             let l:filename = a:response.body[0].file
             let l:line = a:response.body[0].start.line
             let l:column = a:response.body[0].start.offset
 
-            call ale#definition#Open(l:options, l:filename, l:line, l:column)
+            call ale#util#Open(l:filename, l:line, l:column, l:options)
         endif
     endif
 endfunction
@@ -67,7 +51,7 @@ function! ale#definition#HandleLSPResponse(conn_id, response) abort
             let l:line = l:item.range.start.line + 1
             let l:column = l:item.range.start.character
 
-            call ale#definition#Open(l:options, l:filename, l:line, l:column)
+            call ale#util#Open(l:filename, l:line, l:column, l:options)
             break
         endfor
     endif
@@ -81,14 +65,13 @@ function! s:GoToLSPDefinition(linter, options) abort
     \   ? function('ale#definition#HandleTSServerResponse')
     \   : function('ale#definition#HandleLSPResponse')
 
-    let l:lsp_details = ale#linter#StartLSP(l:buffer, a:linter, l:Callback)
+    let l:lsp_details = ale#lsp_linter#StartLSP(l:buffer, a:linter, l:Callback)
 
     if empty(l:lsp_details)
         return 0
     endif
 
     let l:id = l:lsp_details.connection_id
-    let l:root = l:lsp_details.project_root
 
     if a:linter.lsp is# 'tsserver'
         let l:message = ale#lsp#tsserver_message#Definition(
@@ -99,7 +82,7 @@ function! s:GoToLSPDefinition(linter, options) abort
     else
         " Send a message saying the buffer has changed first, or the
         " definition position probably won't make sense.
-        call ale#lsp#Send(l:id, ale#lsp#message#DidChange(l:buffer), l:root)
+        call ale#lsp#NotifyForChanges(l:lsp_details)
 
         let l:column = min([l:column, len(getline(l:line))])
 
@@ -109,7 +92,7 @@ function! s:GoToLSPDefinition(linter, options) abort
         let l:message = ale#lsp#message#Definition(l:buffer, l:line, l:column)
     endif
 
-    let l:request_id = ale#lsp#Send(l:id, l:message, l:root)
+    let l:request_id = ale#lsp#Send(l:id, l:message, l:lsp_details.project_root)
 
     let s:go_to_definition_map[l:request_id] = {
     \   'open_in_tab': get(a:options, 'open_in_tab', 0),

autoload/ale/engine.vim

@@ -2,6 +2,9 @@
 " Description: Backend execution and job management
 "   Executes linters in the background, using NeoVim or Vim 8 jobs
 
+" Remapping of linter problems.
+let g:ale_type_map = get(g:, 'ale_type_map', {})
+
 " Stores information for each job including:
 "
 " linter: The linter dictionary for the job.
@@ -11,11 +14,6 @@ if !has_key(s:, 'job_info_map')
     let s:job_info_map = {}
 endif
 
-" Associates LSP connection IDs with linter names.
-if !has_key(s:, 'lsp_linter_map')
-    let s:lsp_linter_map = {}
-endif
-
 if !has_key(s:, 'executable_cache_map')
     let s:executable_cache_map = {}
 endif
@@ -44,7 +42,7 @@ function! ale#engine#IsExecutable(buffer, executable) abort
 
     " Cache the executable check if we found it, or if the option to cache
     " failing checks is on.
-    if l:result || g:ale_cache_executable_check_failures
+    if l:result || get(g:, 'ale_cache_executable_check_failures', 0)
         let s:executable_cache_map[a:executable] = l:result
     endif
 
@@ -76,11 +74,6 @@ function! ale#engine#InitBufferInfo(buffer) abort
     return 0
 endfunction
 
-" Clear LSP linter data for the linting engine.
-function! ale#engine#ClearLSPData() abort
-    let s:lsp_linter_map = {}
-endfunction
-
 " This function is documented and part of the public API.
 "
 " Return 1 if ALE is busy checking a given buffer
@@ -93,11 +86,13 @@ endfunction
 " Register a temporary file to be managed with the ALE engine for
 " a current job run.
 function! ale#engine#ManageFile(buffer, filename) abort
+    call ale#engine#InitBufferInfo(a:buffer)
     call add(g:ale_buffer_info[a:buffer].temporary_file_list, a:filename)
 endfunction
 
 " Same as the above, but manage an entire directory.
 function! ale#engine#ManageDirectory(buffer, directory) abort
+    call ale#engine#InitBufferInfo(a:buffer)
     call add(g:ale_buffer_info[a:buffer].temporary_directory_list, a:directory)
 endfunction
 
@@ -231,70 +226,6 @@ function! s:HandleExit(job_id, exit_code) abort
     call ale#engine#HandleLoclist(l:linter.name, l:buffer, l:loclist)
 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)
-
-    if l:buffer <= 0
-        return
-    endif
-
-    let l:loclist = ale#lsp#response#ReadDiagnostics(a:response)
-
-    call ale#engine#HandleLoclist(l:linter_name, l:buffer, l:loclist)
-endfunction
-
-function! s:HandleTSServerDiagnostics(response, error_type) abort
-    let l:buffer = bufnr(a:response.body.file)
-    let l:info = get(g:ale_buffer_info, l:buffer, {})
-
-    if empty(l:info)
-        return
-    endif
-
-    let l:thislist = ale#lsp#response#ReadTSServerDiagnostics(a:response)
-
-    " tsserver sends syntax and semantic errors in separate messages, so we
-    " have to collect the messages separately for each buffer and join them
-    " back together again.
-    if a:error_type is# 'syntax'
-        let l:info.syntax_loclist = l:thislist
-    else
-        let l:info.semantic_loclist = l:thislist
-    endif
-
-    let l:loclist = get(l:info, 'semantic_loclist', [])
-    \   + get(l:info, 'syntax_loclist', [])
-
-    call ale#engine#HandleLoclist('tsserver', l:buffer, l:loclist)
-endfunction
-
-function! s:HandleLSPErrorMessage(error_message) abort
-    execute 'echoerr ''Error from LSP:'''
-
-    for l:line in split(a:error_message, "\n")
-        execute 'echoerr l:line'
-    endfor
-endfunction
-
-function! ale#engine#HandleLSPResponse(conn_id, response) abort
-    let l:method = get(a:response, 'method', '')
-
-    if get(a:response, 'jsonrpc', '') is# '2.0' && has_key(a:response, 'error')
-        " Uncomment this line to print LSP error messages.
-        " call s:HandleLSPErrorMessage(a:response.error.message)
-    elseif l:method is# 'textDocument/publishDiagnostics'
-        call s:HandleLSPDiagnostics(a:conn_id, a:response)
-    elseif get(a:response, 'type', '') is# 'event'
-    \&& get(a:response, 'event', '') is# 'semanticDiag'
-        call s:HandleTSServerDiagnostics(a:response, 'semantic')
-    elseif get(a:response, 'type', '') is# 'event'
-    \&& get(a:response, 'event', '') is# 'syntaxDiag'
-        call s:HandleTSServerDiagnostics(a:response, 'syntax')
-    endif
-endfunction
-
 function! ale#engine#SetResults(buffer, loclist) abort
     let l:linting_is_done = !ale#engine#IsCheckingBuffer(a:buffer)
 
@@ -339,8 +270,6 @@ function! ale#engine#SetResults(buffer, loclist) abort
 
         " Call user autocommands. This allows users to hook into ALE's lint cycle.
         silent doautocmd <nomodeline> User ALELintPost
-        " Old DEPRECATED name; call it for backwards compatibility.
-        silent doautocmd <nomodeline> User ALELint
     endif
 endfunction
 
@@ -393,7 +322,7 @@ function! ale#engine#FixLocList(buffer, linter_name, loclist) abort
         \   'text': l:old_item.text,
         \   'lnum': str2nr(l:old_item.lnum),
         \   'col': str2nr(get(l:old_item, 'col', 0)),
-        \   'vcol': get(l:old_item, 'vcol', 0),
+        \   'vcol': 0,
         \   'type': get(l:old_item, 'type', 'E'),
         \   'nr': get(l:old_item, 'nr', -1),
         \   'linter_name': a:linter_name,
@@ -453,6 +382,20 @@ function! ale#engine#FixLocList(buffer, linter_name, loclist) abort
             " When errors go beyond the end of the file, put them at the end.
             " This is only done for the current buffer.
             let l:item.lnum = l:last_line_number
+        elseif get(l:old_item, 'vcol', 0)
+            " Convert virtual column positions to byte positions.
+            " The positions will be off if the buffer has changed recently.
+            let l:line = getbufline(a:buffer, l:item.lnum)[0]
+
+            let l:item.col = ale#util#Col(l:line, l:item.col)
+
+            if has_key(l:item, 'end_col')
+                let l:end_line = get(l:item, 'end_lnum', l:line) != l:line
+                \   ? getbufline(a:buffer, l:item.end_lnum)[0]
+                \   : l:line
+
+                let l:item.end_col = ale#util#Col(l:end_line, l:item.end_col)
+            endif
         endif
 
         call add(l:new_loclist, l:item)
@@ -572,6 +515,8 @@ function! s:RunJob(options) abort
         \   'output': [],
         \   'next_chain_index': l:next_chain_index,
         \}
+
+        silent doautocmd <nomodeline> User ALEJobStarted
     endif
 
     if g:ale_history_enabled
@@ -694,44 +639,6 @@ function! s:StopCurrentJobs(buffer, include_lint_file_jobs) abort
     let l:info.active_linter_list = l:new_active_linter_list
 endfunction
 
-function! s:CheckWithLSP(buffer, linter) abort
-    let l:info = g:ale_buffer_info[a:buffer]
-    let l:lsp_details = ale#linter#StartLSP(
-    \   a:buffer,
-    \   a:linter,
-    \   function('ale#engine#HandleLSPResponse'),
-    \)
-
-    if empty(l:lsp_details)
-        return 0
-    endif
-
-    let l:id = l:lsp_details.connection_id
-    let l:root = l:lsp_details.project_root
-
-    " Remember the linter this connection is for.
-    let s:lsp_linter_map[l:id] = a:linter.name
-
-    let l:change_message = a:linter.lsp is# 'tsserver'
-    \   ? ale#lsp#tsserver_message#Geterr(a:buffer)
-    \   : ale#lsp#message#DidChange(a:buffer)
-    let l:request_id = ale#lsp#Send(l:id, l:change_message, l:root)
-
-    " If this was a file save event, also notify the server of that.
-    if a:linter.lsp isnot# 'tsserver'
-    \&& getbufvar(a:buffer, 'ale_save_event_fired', 0)
-      let l:save_message = ale#lsp#message#DidSave(a:buffer)
-      let l:request_id = ale#lsp#Send(l:id, l:save_message, l:root)
-    endif
-
-    if l:request_id != 0
-        if index(l:info.active_linter_list, a:linter.name) < 0
-            call add(l:info.active_linter_list, a:linter.name)
-        endif
-    endif
-
-    return l:request_id != 0
-endfunction
 
 function! s:RemoveProblemsForDisabledLinters(buffer, linters) abort
     " Figure out which linters are still enabled, and remove
@@ -787,7 +694,7 @@ endfunction
 " Returns 1 if the linter was successfully run.
 function! s:RunLinter(buffer, linter) abort
     if !empty(a:linter.lsp)
-        return s:CheckWithLSP(a:buffer, a:linter)
+        return ale#lsp_linter#CheckWithLSP(a:buffer, a:linter)
     else
         let l:executable = ale#linter#GetExecutable(a:buffer, a:linter)
 
@@ -869,7 +776,7 @@ endfunction
 " The time taken will be a very rough approximation, and more time may be
 " permitted than is specified.
 function! ale#engine#WaitForJobs(deadline) abort
-    let l:start_time = ale#util#ClockMilliseconds()
+    let l:start_time = ale#events#ClockMilliseconds()
 
     if l:start_time == 0
         throw 'Failed to read milliseconds from the clock!'
@@ -900,7 +807,7 @@ function! ale#engine#WaitForJobs(deadline) abort
 
         for l:job_id in l:job_list
             if ale#job#IsRunning(l:job_id)
-                let l:now = ale#util#ClockMilliseconds()
+                let l:now = ale#events#ClockMilliseconds()
 
                 if l:now - l:start_time > a:deadline
                     " Stop waiting after a timeout, so we don't wait forever.
@@ -937,7 +844,7 @@ function! ale#engine#WaitForJobs(deadline) abort
 
     if l:has_new_jobs
         " We have to wait more. Offset the timeout by the time taken so far.
-        let l:now = ale#util#ClockMilliseconds()
+        let l:now = ale#events#ClockMilliseconds()
         let l:new_deadline = a:deadline - (l:now - l:start_time)
 
         if l:new_deadline <= 0

autoload/ale/engine/ignore.vim

@@ -0,0 +1,46 @@
+" Author: w0rp <devw0rp@gmail.com>
+" Description: Code for ignoring linters. Only loaded and if configured.
+
+" Given a filetype and a configuration for ignoring linters, return a List of
+" Strings for linter names to ignore.
+function! ale#engine#ignore#GetList(filetype, config) abort
+    if type(a:config) is type([])
+        return a:config
+    endif
+
+    if type(a:config) is type({})
+        let l:names_to_remove = []
+
+        for l:part in split(a:filetype , '\.')
+            call extend(l:names_to_remove, get(a:config, l:part, []))
+        endfor
+
+        return l:names_to_remove
+    endif
+
+    return []
+endfunction
+
+" Given a List of linter descriptions, exclude the linters to be ignored.
+function! ale#engine#ignore#Exclude(filetype, all_linters, config) abort
+    let l:names_to_remove = ale#engine#ignore#GetList(a:filetype, a:config)
+    let l:filtered_linters = []
+
+    for l:linter in a:all_linters
+        let l:name_list = [l:linter.name] + l:linter.aliases
+        let l:should_include = 1
+
+        for l:name in l:name_list
+            if index(l:names_to_remove, l:name) >= 0
+                let l:should_include = 0
+                break
+            endif
+        endfor
+
+        if l:should_include
+            call add(l:filtered_linters, l:linter)
+        endif
+    endfor
+
+    return l:filtered_linters
+endfunction

autoload/ale/events.vim

@@ -1,14 +1,25 @@
 " Author: w0rp <devw0rp@gmail.com>
+" Description: ALE functions for autocmd events.
+
+" Get the number of milliseconds since some vague, but consistent, point in
+" the past.
+"
+" This function can be used for timing execution, etc.
+"
+" The time will be returned as a Number.
+function! ale#events#ClockMilliseconds() abort
+    return float2nr(reltimefloat(reltime()) * 1000)
+endfunction
 
 function! ale#events#QuitEvent(buffer) abort
     " Remember when ALE is quitting for BufWrite, etc.
-    call setbufvar(a:buffer, 'ale_quitting', ale#util#ClockMilliseconds())
+    call setbufvar(a:buffer, 'ale_quitting', ale#events#ClockMilliseconds())
 endfunction
 
 function! ale#events#QuitRecently(buffer) abort
     let l:time = getbufvar(a:buffer, 'ale_quitting', 0)
 
-    return l:time && ale#util#ClockMilliseconds() - l:time < 1000
+    return l:time && ale#events#ClockMilliseconds() - l:time < 1000
 endfunction
 
 function! ale#events#SaveEvent(buffer) abort
@@ -19,7 +30,7 @@ function! ale#events#SaveEvent(buffer) abort
     endif
 
     if ale#Var(a:buffer, 'fix_on_save')
-        let l:will_fix = ale#fix#Fix('save_file')
+        let l:will_fix = ale#fix#Fix(a:buffer, 'save_file')
         let l:should_lint = l:should_lint && !l:will_fix
     endif
 
@@ -67,3 +78,56 @@ function! ale#events#FileChangedEvent(buffer) abort
         call s:LintOnEnter(a:buffer)
     endif
 endfunction
+
+function! ale#events#Init() abort
+    " This value used to be a Boolean as a Number, and is now a String.
+    let l:text_changed = '' . g:ale_lint_on_text_changed
+
+    augroup ALEEvents
+        autocmd!
+
+        " These events always need to be set up.
+        autocmd BufEnter,BufRead * call ale#pattern_options#SetOptions(str2nr(expand('<abuf>')))
+        autocmd BufWritePost * call ale#events#SaveEvent(str2nr(expand('<abuf>')))
+
+        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)
+            elseif l:text_changed is? 'normal'
+                autocmd TextChanged * call ale#Queue(g:ale_lint_delay)
+            elseif l:text_changed is? 'insert'
+                autocmd TextChangedI * call ale#Queue(g:ale_lint_delay)
+            endif
+
+            " Handle everything that needs to happen when buffers are entered.
+            autocmd BufEnter * call ale#events#EnterEvent(str2nr(expand('<abuf>')))
+
+            if g:ale_lint_on_enter
+                autocmd BufWinEnter,BufRead * call ale#Queue(0, 'lint_file', str2nr(expand('<abuf>')))
+                " Track when the file is changed outside of Vim.
+                autocmd FileChangedShellPost * call ale#events#FileChangedEvent(str2nr(expand('<abuf>')))
+            endif
+
+            if g:ale_lint_on_filetype_changed
+                " Only start linting if the FileType actually changes after
+                " opening a buffer. The FileType will fire when buffers are opened.
+                autocmd FileType * call ale#events#FileTypeEvent(
+                \   str2nr(expand('<abuf>')),
+                \   expand('<amatch>')
+                \)
+            endif
+
+            if g:ale_lint_on_insert_leave
+                autocmd InsertLeave * call ale#Queue(0)
+            endif
+
+            if g:ale_echo_cursor
+                autocmd CursorMoved,CursorHold * if exists('*ale#engine#Cleanup') | call ale#cursor#EchoCursorWarningWithDelay() | endif
+                " Look for a warning to echo as soon as we leave Insert mode.
+                " The script's position variable used when moving the cursor will
+                " not be changed here.
+                autocmd InsertLeave * if exists('*ale#engine#Cleanup') | call ale#cursor#EchoCursorWarning() | endif
+            endif
+        endif
+    augroup END
+endfunction

autoload/ale/fix.vim

@@ -28,8 +28,6 @@ function! ale#fix#ApplyQueuedFixes() abort
     call remove(g:ale_fix_buffer_data, l:buffer)
 
     if l:data.changes_made
-        call setline(1, l:data.output)
-
         let l:start_line = len(l:data.output) + 1
         let l:end_line = len(l:data.lines_before)
 
@@ -39,6 +37,8 @@ function! ale#fix#ApplyQueuedFixes() abort
             call winrestview(l:save)
         endif
 
+        call setline(1, l:data.output)
+
         if l:data.should_save
             if empty(&buftype)
                 noautocmd :w!
@@ -356,25 +356,41 @@ function! s:RunFixer(options) abort
     call ale#fix#ApplyFixes(l:buffer, l:input)
 endfunction
 
-function! s:GetCallbacks() abort
-    if type(get(b:, 'ale_fixers')) is type([])
+function! s:AddSubCallbacks(full_list, callbacks) abort
+    if type(a:callbacks) == type('')
+        call add(a:full_list, a:callbacks)
+    elseif type(a:callbacks) == type([])
+        call extend(a:full_list, a:callbacks)
+    else
+        return 0
+    endif
+
+    return 1
+endfunction
+
+function! s:GetCallbacks(buffer, fixers) abort
+    if len(a:fixers)
+        let l:callback_list = a:fixers
+    elseif type(get(b:, 'ale_fixers')) is type([])
         " Lists can be used for buffer-local variables only
         let l:callback_list = b:ale_fixers
     else
         " buffer and global options can use dictionaries mapping filetypes to
         " callbacks to run.
-        let l:fixers = ale#Var(bufnr(''), 'fixers')
+        let l:fixers = ale#Var(a:buffer, 'fixers')
         let l:callback_list = []
+        let l:matched = 0
 
         for l:sub_type in split(&filetype, '\.')
-            let l:sub_type_callacks = get(l:fixers, l:sub_type, [])
-
-            if type(l:sub_type_callacks) == type('')
-                call add(l:callback_list, l:sub_type_callacks)
-            else
-                call extend(l:callback_list, l:sub_type_callacks)
+            if s:AddSubCallbacks(l:callback_list, get(l:fixers, l:sub_type))
+                let l:matched = 1
             endif
         endfor
+
+        " If we couldn't find fixers for a filetype, default to '*' fixers.
+        if !l:matched
+            call s:AddSubCallbacks(l:callback_list, get(l:fixers, '*'))
+        endif
     endif
 
     if empty(l:callback_list)
@@ -422,19 +438,13 @@ endfunction
 " Accepts an optional argument for what to do when fixing.
 "
 " Returns 0 if no fixes can be applied, and 1 if fixing can be done.
-function! ale#fix#Fix(...) abort
-    if len(a:0) > 1
-        throw 'too many arguments!'
-    endif
-
-    let l:fixing_flag = get(a:000, 0, '')
-
-    if l:fixing_flag isnot# '' && l:fixing_flag isnot# 'save_file'
+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'"
     endif
 
     try
-        let l:callback_list = s:GetCallbacks()
+        let l:callback_list = s:GetCallbacks(a:buffer, a:000)
     catch /E700\|BADNAME/
         let l:function_name = join(split(split(v:exception, ':')[3]))
         let l:echo_message = printf(
@@ -447,29 +457,27 @@ function! ale#fix#Fix(...) abort
     endtry
 
     if empty(l:callback_list)
-        if l:fixing_flag is# ''
+        if a:fixing_flag is# ''
             execute 'echom ''No fixers have been defined. Try :ALEFixSuggest'''
         endif
 
         return 0
     endif
 
-    let l:buffer = bufnr('')
-
     for l:job_id in keys(s:job_info_map)
         call remove(s:job_info_map, l:job_id)
         call ale#job#Stop(l:job_id)
     endfor
 
     " Clean up any files we might have left behind from a previous run.
-    call ale#fix#RemoveManagedFiles(l:buffer)
-    call ale#fix#InitBufferData(l:buffer, l:fixing_flag)
+    call ale#fix#RemoveManagedFiles(a:buffer)
+    call ale#fix#InitBufferData(a:buffer, a:fixing_flag)
 
     silent doautocmd <nomodeline> User ALEFixPre
 
     call s:RunFixer({
-    \   'buffer': l:buffer,
-    \   'input': g:ale_fix_buffer_data[l:buffer].lines_before,
+    \   'buffer': a:buffer,
+    \   'input': g:ale_fix_buffer_data[a:buffer].lines_before,
     \   'callback_index': 0,
     \   'callback_list': l:callback_list,
     \})

autoload/ale/fix/registry.vim

@@ -17,6 +17,16 @@ let s:default_registry = {
 \       'suggested_filetypes': ['python'],
 \       'description': 'Fix PEP8 issues with autopep8.',
 \   },
+\   'black': {
+\       'function': 'ale#fixers#black#Fix',
+\       'suggested_filetypes': ['python'],
+\       'description': 'Fix PEP8 issues with black.',
+\   },
+\   'tidy': {
+\       'function': 'ale#fixers#tidy#Fix',
+\       'suggested_filetypes': ['html'],
+\       'description': 'Fix HTML files with tidy.',
+\   },
 \   'prettier_standard': {
 \       'function': 'ale#fixers#prettier_standard#Fix',
 \       'suggested_filetypes': ['javascript'],
@@ -46,7 +56,7 @@ let s:default_registry = {
 \   },
 \   'prettier': {
 \       'function': 'ale#fixers#prettier#Fix',
-\       'suggested_filetypes': ['javascript', 'typescript', 'json', 'css', 'scss', 'less', 'markdown', 'graphql', 'vue'],
+\       'suggested_filetypes': ['javascript', 'typescript', 'css', 'less', 'scss', 'json', 'json5', 'graphql', 'markdown', 'vue'],
 \       'description': 'Apply prettier to a file.',
 \   },
 \   'prettier_eslint': {
@@ -90,6 +100,11 @@ let s:default_registry = {
 \       'suggested_filetypes': ['ruby'],
 \       'description': 'Fix ruby files with rufo',
 \   },
+\   'scalafmt': {
+\       'function': 'ale#fixers#scalafmt#Fix',
+\       'suggested_filetypes': ['scala'],
+\       'description': 'Fix Scala files using scalafmt',
+\   },
 \   'standard': {
 \       'function': 'ale#fixers#standard#Fix',
 \       'suggested_filetypes': ['javascript'],
@@ -180,6 +195,26 @@ let s:default_registry = {
 \       'suggested_filetypes': ['json'],
 \       'description': 'Fix JSON files with jq.',
 \   },
+\   'perltidy': {
+\       'function': 'ale#fixers#perltidy#Fix',
+\       'suggested_filetypes': ['perl'],
+\       'description': 'Fix Perl files with perltidy.',
+\   },
+\   'xo': {
+\       'function': 'ale#fixers#xo#Fix',
+\       'suggested_filetypes': ['javascript'],
+\       'description': 'Fix JavaScript files using xo --fix.',
+\   },
+\   'qmlfmt': {
+\       'function': 'ale#fixers#qmlfmt#Fix',
+\       'suggested_filetypes': ['qml'],
+\       'description': 'Fix QML files with qmlfmt.',
+\   },
+\   'dartfmt': {
+\       'function': 'ale#fixers#dartfmt#Fix',
+\       'suggested_filetypes': ['dart'],
+\       'description': 'Fix Dart files with dartfmt.',
+\   },
 \}
 
 " Reset the function registry to the default entries.
@@ -272,6 +307,14 @@ function! s:ShouldSuggestForType(suggested_filetypes, type_list) abort
     return 0
 endfunction
 
+function! s:IsGenericFixer(suggested_filetypes) abort
+    if empty(a:suggested_filetypes)
+        return 1
+    endif
+
+    return 0
+endfunction
+
 function! s:FormatEntry(key, entry) abort
     let l:aliases_str = ''
 
@@ -291,8 +334,28 @@ function! s:FormatEntry(key, entry) abort
     \)
 endfunction
 
-" Suggest functions to use from the registry.
-function! ale#fix#registry#Suggest(filetype) abort
+" Get list of applicable fixers for filetype, including generic fixers
+function! ale#fix#registry#GetApplicableFixers(filetype) abort
+    let l:type_list = split(a:filetype, '\.')
+    let l:fixer_name_list = []
+
+    for l:key in sort(keys(s:entries))
+        let l:suggested_filetypes = s:entries[l:key].suggested_filetypes
+
+        if s:IsGenericFixer(l:suggested_filetypes) || s:ShouldSuggestForType(l:suggested_filetypes, l:type_list)
+            call add(l:fixer_name_list, l:key)
+        endif
+    endfor
+
+    return l:fixer_name_list
+endfunction
+
+" Function that returns autocomplete candidates for ALEFix command
+function! ale#fix#registry#CompleteFixers(ArgLead, CmdLine, CursorPos) abort
+    return filter(ale#fix#registry#GetApplicableFixers(&filetype), 'v:val =~? a:ArgLead')
+endfunction
+
+function! ale#fix#registry#SuggestedFixers(filetype) abort
     let l:type_list = split(a:filetype, '\.')
     let l:filetype_fixer_list = []
 
@@ -310,7 +373,7 @@ function! ale#fix#registry#Suggest(filetype) abort
     let l:generic_fixer_list = []
 
     for l:key in sort(keys(s:entries))
-        if empty(s:entries[l:key].suggested_filetypes)
+        if s:IsGenericFixer(s:entries[l:key].suggested_filetypes)
             call add(
             \   l:generic_fixer_list,
             \   s:FormatEntry(l:key, s:entries[l:key]),
@@ -318,6 +381,15 @@ function! ale#fix#registry#Suggest(filetype) abort
         endif
     endfor
 
+    return [l:filetype_fixer_list, l:generic_fixer_list]
+endfunction
+
+" Suggest functions to use from the registry.
+function! ale#fix#registry#Suggest(filetype) abort
+    let l:suggested = ale#fix#registry#SuggestedFixers(a:filetype)
+    let l:filetype_fixer_list = l:suggested[0]
+    let l:generic_fixer_list = l:suggested[1]
+
     let l:filetype_fixer_header = !empty(l:filetype_fixer_list)
     \   ? ['Try the following fixers appropriate for the filetype:', '']
     \   : []

autoload/ale/fixers/autopep8.vim

@@ -2,7 +2,7 @@
 " Description: Fixing files with autopep8.
 
 call ale#Set('python_autopep8_executable', 'autopep8')
-call ale#Set('python_autopep8_use_global', 0)
+call ale#Set('python_autopep8_use_global', get(g:, 'ale_use_global_executables', 0))
 call ale#Set('python_autopep8_options', '')
 
 function! ale#fixers#autopep8#Fix(buffer) abort

autoload/ale/fixers/black.vim

@@ -0,0 +1,26 @@
+" Author: w0rp <devw0rp@gmail.com>
+" Description: Fixing Python files with black.
+"
+call ale#Set('python_black_executable', 'black')
+call ale#Set('python_black_use_global', get(g:, 'ale_use_global_executables', 0))
+call ale#Set('python_black_options', '')
+
+function! ale#fixers#black#Fix(buffer) abort
+    let l:executable = ale#python#FindExecutable(
+    \   a:buffer,
+    \   'python_black',
+    \   ['black'],
+    \)
+
+    if !executable(l:executable)
+        return 0
+    endif
+
+    let l:options = ale#Var(a:buffer, 'python_black_options')
+
+    return {
+    \   'command': ale#Escape(l:executable)
+    \       . (!empty(l:options) ? ' ' . l:options : '')
+    \       . ' -',
+    \}
+endfunction

autoload/ale/fixers/brittany.vim

@@ -1,4 +1,4 @@
-" Author: eborden <evan@evan-borden.com>
+" Author: eborden <evan@evan-borden.com>, ifyouseewendy <ifyouseewendy@gmail.com>, aspidiets <emarshall85@gmail.com>
 " Description: Integration of brittany with ALE.
 
 call ale#Set('haskell_brittany_executable', 'brittany')
@@ -8,6 +8,7 @@ function! ale#fixers#brittany#Fix(buffer) abort
 
     return {
     \   'command': ale#Escape(l:executable)
+    \       . ' --write-mode inplace'
     \       . ' %t',
     \   'read_temporary_file': 1,
     \}

autoload/ale/fixers/clangformat.vim

@@ -3,7 +3,7 @@ scriptencoding utf-8
 " Description: Fixing C/C++ files with clang-format.
 
 call ale#Set('c_clangformat_executable', 'clang-format')
-call ale#Set('c_clangformat_use_global', 0)
+call ale#Set('c_clangformat_use_global', get(g:, 'ale_use_global_executables', 0))
 call ale#Set('c_clangformat_options', '')
 
 function! ale#fixers#clangformat#GetExecutable(buffer) abort

autoload/ale/fixers/dartfmt.vim

@@ -0,0 +1,18 @@
+" Author: reisub0 <reisub0@gmail.com>
+" Description: Integration of dartfmt with ALE.
+
+call ale#Set('dart_dartfmt_executable', 'dartfmt')
+call ale#Set('dart_dartfmt_options', '')
+
+function! ale#fixers#dartfmt#Fix(buffer) abort
+    let l:executable = ale#Var(a:buffer, 'dart_dartfmt_executable')
+    let l:options = ale#Var(a:buffer, 'dart_dartfmt_options')
+
+    return {
+    \   'command': ale#Escape(l:executable)
+    \       . ' -w'
+    \       . (empty(l:options) ? '' : ' ' . l:options)
+    \       . ' %t',
+    \   'read_temporary_file': 1,
+    \}
+endfunction

autoload/ale/fixers/elm_format.vim

@@ -2,7 +2,7 @@
 " Description: Integration of elm-format with ALE.
 
 call ale#Set('elm_format_executable', 'elm-format')
-call ale#Set('elm_format_use_global', 0)
+call ale#Set('elm_format_use_global', get(g:, 'ale_use_global_executables', 0))
 call ale#Set('elm_format_options', '--yes')
 
 function! ale#fixers#elm_format#GetExecutable(buffer) abort

autoload/ale/fixers/fixjson.vim

@@ -3,7 +3,7 @@
 
 call ale#Set('json_fixjson_executable', 'fixjson')
 call ale#Set('json_fixjson_options', '')
-call ale#Set('json_fixjson_use_global', 0)
+call ale#Set('json_fixjson_use_global', get(g:, 'ale_use_global_executables', 0))
 
 function! ale#fixers#fixjson#GetExecutable(buffer) abort
     return ale#node#FindExecutable(a:buffer, 'json_fixjson', [