Stop the completion tests from failing randomly

* windows compatible warning match pattern for erlc

.appveyor.yml

@@ -0,0 +1,40 @@
+---
+# Disabling building for AppVeyor. We are just testing things.
+build: false
+clone_depth: 10
+# Use the directory C:\testplugin so test directories will mostly work.
+clone_folder: C:\testplugin
+
+# Cache the vim and vader directories between builds.
+cache:
+  - C:\vim -> .appveyor.yml
+  - C:\vader -> .appveyor.yml
+
+init:
+  # Stop git from changing newlines
+  - git config --global core.autocrlf input
+
+install:
+  # Download and unpack Vim
+  - ps: >-
+      if (!(Test-Path -Path C:\vim)){
+        Add-Type -A System.IO.Compression.FileSystem
+        Invoke-WebRequest ftp://ftp.vim.org/pub/vim/pc/vim80-586w32.zip `
+          -OutFile C:\vim.zip
+        [IO.Compression.ZipFile]::ExtractToDirectory('C:\vim.zip', 'C:\vim')
+        Invoke-WebRequest ftp://ftp.vim.org/pub/vim/pc/vim80-586rt.zip `
+          -OutFile C:\rt.zip
+        [IO.Compression.ZipFile]::ExtractToDirectory('C:\rt.zip', 'C:\vim')
+      }
+  # Clone Vader and check out the commit we want
+  - ps: >-
+      if (!(Test-Path -Path C:\vader)){
+        git clone https://github.com/junegunn/vader.vim C:\vader 2> $null
+        cd C:\vader
+        git checkout -qf c6243dd81c98350df4dec608fa972df98fa2a3af 2> $null
+      }
+
+test_script:
+  - cd C:\testplugin
+  - 'C:\vim\vim\vim80\vim.exe -u test\vimrc "+Vader!
+    test/*.vader test/*/*.vader test/*/*/*.vader test/*/*/*.vader"'

.editorconfig

@@ -0,0 +1,14 @@
+# EditorConfig is awesome: http://EditorConfig.org
+
+# Top-most EditorConfig file
+root = true
+
+# Match and apply these rules for all file
+# types you open in your code editor
+[*]
+# Unix-style newlines
+end_of_line = lf
+insert_final_newline = true
+indent_style = space
+indent_size = 4
+trim_trailing_whitespace = true

.gitattributes

@@ -6,7 +6,7 @@
 /Makefile export-ignore
 /PULL_REQUEST_TEMPLATE.md export-ignore
 /README.md export-ignore
-/custom-checks export-ignore
 /img export-ignore
 /run-tests export-ignore
+/run-tests.bat export-ignore
 /test export-ignore

.gitignore

@@ -1,5 +1,6 @@
 /init.vim
 /doc/tags
 .*
+!.editorconfig
 *.obj
 tags

.travis.yml

@@ -2,9 +2,6 @@
 sudo: required
 services:
     - docker
-branches:
-    only:
-        - master
 language: python
 script: |
     ./run-tests

CONTRIBUTING.md

@@ -74,10 +74,10 @@ If you want to credit multiple authors, you can comma separate them.
 ### 3.i. Adding a New Linter
 
 If you add a new linter, look for existing handlers first in the
-[handlers.vim](autoload/ale/handlers.vim) file. One of the handlers there may
+[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.vim](autoload/ale/handlers.vim) file, and use the generic handler in
+[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
@@ -129,7 +129,7 @@ giving some unfair preference to any particular tool or language.
 
 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 guidlines to follow for this file.
+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.
@@ -160,7 +160,7 @@ to look up the default value easily by typing `:echo g:ale_...`.
 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 adduction, etc., action should be taken to ensure that the
+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

ISSUE_TEMPLATE.md

@@ -1,8 +1,4 @@
 <!--
-READ THIS FIRST: If you are experiencing any bug whatsoever dealing with
-the output of linters, please use `let g:ale_history_log_output = 1` before
-pasting output. It will capture the output of commands that are run.
-
 For bugs, paste output from your clipboard after running :ALEInfoToClipboard
 here. If that doesn't work for some reason, try running :ALEInfo and copying
 the output from that here instead. If everything is broken, run around in

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2016, w0rp <devw0rp@gmail.com>
+Copyright (c) 2016-2017, w0rp <devw0rp@gmail.com>
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without

PULL_REQUEST_TEMPLATE.md

@@ -1,6 +1,10 @@
 <!--
-When creating new pull requests, please consider the following.
+READ THIS: Before creating a pull request, please consider the following first.
 
+* 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.

README.md

@@ -1,4 +1,5 @@
-# Asynchronous Lint Engine [![Build Status](https://travis-ci.org/w0rp/ale.svg?branch=master)](https://travis-ci.org/w0rp/ale)
+# Asynchronous Lint Engine [![Travis CI Build Status](https://travis-ci.org/w0rp/ale.svg?branch=master)](https://travis-ci.org/w0rp/ale) [![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/github/w0rp/ale?svg=true)](https://ci.appveyor.com/project/w0rp/ale)
+
 
 ![ALE Logo by Mark Grealish - https://www.bhalash.com/](img/logo.jpg?raw=true)
 
@@ -15,30 +16,35 @@ back to a filesystem.
 
 In other words, this plugin allows you to lint while you type.
 
-ALE also supports fixing problems with files by running commands in the
+In addition to linting support, ALE offers some support for fixing code with
-background with a command `ALEFix`.
+formatting tools, and completion via Language Server Protocol servers, or
+servers with similar enough protocols, like `tsserver`.
 
 ## Table of Contents
 
 1. [Supported Languages and Tools](#supported-languages)
 2. [Usage](#usage)
+    1. [Linting](#usage-linting)
+    2. [Fixing](#usage-fixing)
+    3. [Completion](#usage-completion)
 3. [Installation](#installation)
-    1. [Installation with Pathogen](#installation-with-pathogen)
+    1. [Installation with Vim package management](#standard-installation)
-    2. [Installation with Vundle](#installation-with-vundle)
+    2. [Installation with Pathogen](#installation-with-pathogen)
-    3. [Manual Installation](#manual-installation)
+    3. [Installation with Vundle](#installation-with-vundle)
 4. [Contributing](#contributing)
 5. [FAQ](#faq)
     1. [How do I disable particular linters?](#faq-disable-linters)
     2. [How can I keep the sign gutter open?](#faq-keep-signs)
     3. [How can I change the signs ALE uses?](#faq-change-signs)
     4. [How can I show errors or warnings in my statusline?](#faq-statusline)
-    5. [How can I change the format for echo messages?](#faq-echo-format)
+    5. [How can I show errors or warnings in my lightline?](#faq-lightline)
-    6. [How can I execute some code when ALE stops linting?](#faq-autocmd)
+    6. [How can I change the format for echo messages?](#faq-echo-format)
-    7. [How can I navigate between errors quickly?](#faq-navigation)
+    7. [How can I execute some code when ALE stops linting?](#faq-autocmd)
-    8. [How can I run linters only when I save files?](#faq-lint-on-save)
+    8. [How can I navigate between errors quickly?](#faq-navigation)
-    9. [How can I use the quickfix list instead of the loclist?](#faq-quickfix)
+    9. [How can I run linters only when I save files?](#faq-lint-on-save)
-    10. [How can I check JSX files with both stylelint and eslint?](#faq-jsx-stylelint-eslint)
+    10. [How can I use the quickfix list instead of the loclist?](#faq-quickfix)
-    11. [Will this plugin eat all of my laptop battery power?](#faq-my-battery-is-sad)
+    11. [How can I check JSX files with both stylelint and eslint?](#faq-jsx-stylelint-eslint)
+    12. [Will this plugin eat all of my laptop battery power?](#faq-my-battery-is-sad)
 
 <a name="supported-languages"></a>
 
@@ -51,86 +57,107 @@ tools will be run in combination, so they can be complementary.
 Keep the table rows sorted alphabetically by the language name,
 and the tools in the tools column sorted alphabetically by the tool
 name. That seems to be the fairest way to arrange this table.
+
+Remember to also update doc/ale.txt, which has a similar list with different
+formatting.
 -->
 
+**Notes:**
+
+* *^ No linters for text or Vim help filetypes are enabled by default.*
+* *!! These linters check only files on disk. See `:help ale-lint-file-linters`*
+
 | Language | Tools |
 | -------- | ----- |
 | ASM | [gcc](https://gcc.gnu.org) |
 | Ansible | [ansible-lint](https://github.com/willthames/ansible-lint) |
-| AsciiDoc | [proselint](http://proselint.com/)|
+| AsciiDoc | [proselint](http://proselint.com/) |
 | Awk | [gawk](https://www.gnu.org/software/gawk/)|
-| Bash | [-n flag](https://www.gnu.org/software/bash/manual/bash.html#index-set), [shellcheck](https://www.shellcheck.net/) |
+| Bash | shell [-n flag](https://www.gnu.org/software/bash/manual/bash.html#index-set), [shellcheck](https://www.shellcheck.net/) |
-| Bourne Shell | [-n flag](http://linux.die.net/man/1/sh), [shellcheck](https://www.shellcheck.net/) |
+| Bourne Shell | shell [-n flag](http://linux.die.net/man/1/sh), [shellcheck](https://www.shellcheck.net/) |
-| C | [cppcheck](http://cppcheck.sourceforge.net), [gcc](https://gcc.gnu.org/), [clang](http://clang.llvm.org/)|
+| C | [cppcheck](http://cppcheck.sourceforge.net), [cpplint](https://github.com/google/styleguide/tree/gh-pages/cpplint), [gcc](https://gcc.gnu.org/), [clang](http://clang.llvm.org/), [clangtidy](http://clang.llvm.org/extra/clang-tidy/) !!, [clang-format](https://clang.llvm.org/docs/ClangFormat.html)|
-| C++ (filetype cpp) | [clang](http://clang.llvm.org/), [clangcheck](http://clang.llvm.org/docs/ClangCheck.html), [clangtidy](http://clang.llvm.org/extra/clang-tidy/), [cppcheck](http://cppcheck.sourceforge.net), [cpplint](https://github.com/google/styleguide/tree/gh-pages/cpplint), [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/) !!, [cppcheck](http://cppcheck.sourceforge.net), [cpplint](https://github.com/google/styleguide/tree/gh-pages/cpplint) !!, [gcc](https://gcc.gnu.org/), [clang-format](https://clang.llvm.org/docs/ClangFormat.html)|
-| C# | [mcs](http://www.mono-project.com/docs/about-mono/languages/csharp/) |
+| 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/) |
 | 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/) |
+| Crystal | [crystal](https://crystal-lang.org/) !! |
-| CSS | [csslint](http://csslint.net/), [stylelint](https://github.com/stylelint/stylelint) |
+| CSS | [csslint](http://csslint.net/), [stylelint](https://github.com/stylelint/stylelint), [prettier](https://github.com/prettier/prettier) |
 | Cython (pyrex filetype) | [cython](http://cython.org/) |
 | D | [dmd](https://dlang.org/dmd-linux.html) |
+| Dart | [dartanalyzer](https://github.com/dart-lang/sdk/tree/master/pkg/analyzer_cli) |
 | Dockerfile | [hadolint](https://github.com/lukasmartinelli/hadolint) |
-| Elixir | [credo](https://github.com/rrrene/credo), [dogma](https://github.com/lpil/dogma) |
+| Elixir | [credo](https://github.com/rrrene/credo), [dogma](https://github.com/lpil/dogma) !! |
-| Elm | [elm-make](https://github.com/elm-lang/elm-make) |
+| Elm | [elm-format](https://github.com/avh4/elm-format), [elm-make](https://github.com/elm-lang/elm-make) |
-| Erb | [erb](https://github.com/jeremyevans/erubi) |
+| Erb | [erb](https://github.com/jeremyevans/erubi), [erubis](https://github.com/kwatch/erubis) |
-| Erlang | [erlc](http://erlang.org/doc/man/erlc.html) |
+| Erlang | [erlc](http://erlang.org/doc/man/erlc.html), [SyntaxErl](https://github.com/ten0s/syntaxerl) |
 | Fortran | [gcc](https://gcc.gnu.org/) |
 | FusionScript | [fusion-lint](https://github.com/RyanSquared/fusionscript) |
-| Go | [gofmt -e](https://golang.org/cmd/gofmt/), [go vet](https://golang.org/cmd/vet/), [golint](https://godoc.org/github.com/golang/lint), [gometalinter](https://github.com/alecthomas/gometalinter), [go build](https://golang.org/cmd/go/), [gosimple](https://github.com/dominikh/go-tools/tree/master/cmd/gosimple), [staticcheck](https://github.com/dominikh/go-tools/tree/master/cmd/staticcheck) |
+| GLSL | [glslang](https://github.com/KhronosGroup/glslang) |
-| Haml | [haml-lint](https://github.com/brigade/haml-lint)
+| Go | [gofmt](https://golang.org/cmd/gofmt/), [go vet](https://golang.org/cmd/vet/), [golint](https://godoc.org/github.com/golang/lint), [gometalinter](https://github.com/alecthomas/gometalinter) !!, [go build](https://golang.org/cmd/go/) !!, [gosimple](https://github.com/dominikh/go-tools/tree/master/cmd/gosimple) !!, [staticcheck](https://github.com/dominikh/go-tools/tree/master/cmd/staticcheck) !! |
+| GraphQL | [gqlint](https://github.com/happylinks/gqlint) |
+| Haml | [haml-lint](https://github.com/brigade/haml-lint) |
 | Handlebars | [ember-template-lint](https://github.com/rwjblue/ember-template-lint) |
-| Haskell | [ghc](https://www.haskell.org/ghc/), [ghc-mod](https://github.com/DanielG/ghc-mod), [hlint](https://hackage.haskell.org/package/hlint), [hdevtools](https://hackage.haskell.org/package/hdevtools) |
+| Haskell | [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) |
 | HTML | [HTMLHint](http://htmlhint.com/), [proselint](http://proselint.com/), [tidy](http://www.html-tidy.org/) |
+| Idris | [idris](http://www.idris-lang.org/) |
 | Java | [checkstyle](http://checkstyle.sourceforge.net), [javac](http://www.oracle.com/technetwork/java/javase/downloads/index.html) |
-| JavaScript | [eslint](http://eslint.org/), [jscs](http://jscs.info/), [jshint](http://jshint.com/), [flow](https://flowtype.org/), [standard](http://standardjs.com/), [prettier](https://github.com/prettier/prettier) (and `prettier-eslint`), [xo](https://github.com/sindresorhus/xo)
+| JavaScript | [eslint](http://eslint.org/), [jscs](http://jscs.info/), [jshint](http://jshint.com/), [flow](https://flowtype.org/), [prettier](https://github.com/prettier/prettier), prettier-eslint >= 4.2.0, prettier-standard, [standard](http://standardjs.com/), [xo](https://github.com/sindresorhus/xo)
-| JSON | [jsonlint](http://zaa.ch/jsonlint/) |
+| JSON | [jsonlint](http://zaa.ch/jsonlint/), [prettier](https://github.com/prettier/prettier) |
-| Kotlin | [kotlinc](https://kotlinlang.org), [ktlint](https://ktlint.github.io) see `:help ale-integration-kotlin` for configuration instructions
+| Kotlin | [kotlinc](https://kotlinlang.org) !!, [ktlint](https://ktlint.github.io) !! see `:help ale-integration-kotlin` for configuration instructions |
 | LaTeX | [chktex](http://www.nongnu.org/chktex/), [lacheck](https://www.ctan.org/pkg/lacheck), [proselint](http://proselint.com/) |
+| LLVM | [llc](https://llvm.org/docs/CommandGuide/llc.html) |
 | Lua | [luacheck](https://github.com/mpeterv/luacheck) |
-| Markdown | [mdl](https://github.com/mivok/markdownlint), [proselint](http://proselint.com/), [vale](https://github.com/ValeLint/vale) |
+| Markdown | [mdl](https://github.com/mivok/markdownlint), [proselint](http://proselint.com/), [vale](https://github.com/ValeLint/vale), [remark-lint](https://github.com/wooorm/remark-lint) !! |
 | MATLAB | [mlint](https://www.mathworks.com/help/matlab/ref/mlint.html) |
-| Nim | [nim](https://nim-lang.org/docs/nimc.html) |
+| Nim | [nim check](https://nim-lang.org/docs/nimc.html) !! |
 | nix | [nix-instantiate](http://nixos.org/nix/manual/#sec-nix-instantiate) |
 | nroff | [proselint](http://proselint.com/)|
 | 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-integration-ocaml-merlin` for configuration instructions
+| OCaml | [merlin](https://github.com/the-lambda-church/merlin) see `:help ale-ocaml-merlin` for configuration instructions |
 | Perl | [perl -c](https://perl.org/), [perl-critic](https://metacpan.org/pod/Perl::Critic) |
-| PHP | [hack](http://hacklang.org/), [php -l](https://secure.php.net/), [phpcs](https://github.com/squizlabs/PHP_CodeSniffer), [phpmd](https://phpmd.org) |
+| PHP | [hack](http://hacklang.org/), [langserver](https://github.com/felixfbecker/php-language-server), [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) |
 | Pod | [proselint](http://proselint.com/)|
 | 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/), [pylint](https://www.pylint.org/), [yapf](https://github.com/google/yapf) |
+| 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/), [pycodestyle](https://github.com/PyCQA/pycodestyle), [pylint](https://www.pylint.org/) !!, [yapf](https://github.com/google/yapf) |
-| ReasonML | [merlin](https://github.com/the-lambda-church/merlin) see `:help ale-integration-reason-merlin` for configuration instructions
+| R | [lintr](https://github.com/jimhester/lintr) |
-| reStructuredText | [proselint](http://proselint.com/)|
+| ReasonML | [merlin](https://github.com/the-lambda-church/merlin) see `:help ale-integration-reason-merlin` for configuration instructions |
+| reStructuredText | [proselint](http://proselint.com/) |
 | RPM spec | [rpmlint](https://github.com/rpm-software-management/rpmlint) (disabled by default; see `:help ale-integration-spec`) |
-| Ruby | [brakeman](http://brakemanscanner.org/), [reek](https://github.com/troessner/reek), [rubocop](https://github.com/bbatsov/rubocop), [ruby](https://www.ruby-lang.org) |
+| Ruby | [brakeman](http://brakemanscanner.org/) !!, [rails_best_practices](https://github.com/flyerhzm/rails_best_practices) !!, [reek](https://github.com/troessner/reek), [rubocop](https://github.com/bbatsov/rubocop), [ruby](https://www.ruby-lang.org) |
-| Rust | [rustc](https://www.rust-lang.org/), cargo (see `:help ale-integration-rust` for configuration instructions) |
+| Rust |  cargo !! (see `:help ale-integration-rust` for configuration instructions), [rls](https://github.com/rust-lang-nursery/rls), [rustc](https://www.rust-lang.org/) |
 | SASS | [sass-lint](https://www.npmjs.com/package/sass-lint), [stylelint](https://github.com/stylelint/stylelint) |
-| SCSS | [sass-lint](https://www.npmjs.com/package/sass-lint), [scss-lint](https://github.com/brigade/scss-lint), [stylelint](https://github.com/stylelint/stylelint) |
+| SCSS | [sass-lint](https://www.npmjs.com/package/sass-lint), [scss-lint](https://github.com/brigade/scss-lint), [stylelint](https://github.com/stylelint/stylelint), [prettier](https://github.com/prettier/prettier) |
-| Scala | [scalac](http://scala-lang.org) |
+| Scala | [scalac](http://scala-lang.org), [scalastyle](http://www.scalastyle.org) |
-| Slim | [slim-lint](https://github.com/sds/slim-lint)
+| Slim | [slim-lint](https://github.com/sds/slim-lint) |
 | SML | [smlnj](http://www.smlnj.org/) |
+| Solidity | [solium](https://github.com/duaraghav8/Solium) |
+| Stylus | [stylelint](https://github.com/stylelint/stylelint) |
 | SQL | [sqlint](https://github.com/purcell/sqlint) |
-| Swift | [swiftlint](https://swift.org/) |
+| Swift | [swiftlint](https://github.com/realm/SwiftLint), [swiftformat](https://github.com/nicklockwood/SwiftFormat) |
+| Tcl | [nagelfar](http://nagelfar.sourceforge.net) !! |
 | Texinfo | [proselint](http://proselint.com/)|
 | Text^ | [proselint](http://proselint.com/), [vale](https://github.com/ValeLint/vale) |
-| TypeScript | [eslint](http://eslint.org/), [tslint](https://github.com/palantir/tslint), tsserver, typecheck |
+| Thrift | [thrift](http://thrift.apache.org/) |
+| TypeScript | [eslint](http://eslint.org/), [tslint](https://github.com/palantir/tslint), tsserver, typecheck, [prettier](https://github.com/prettier/prettier) |
 | Verilog | [iverilog](https://github.com/steveicarus/iverilog), [verilator](http://www.veripool.org/projects/verilator/wiki/Intro) |
 | Vim | [vint](https://github.com/Kuniwak/vint) |
 | Vim help^ | [proselint](http://proselint.com/)|
 | XHTML | [proselint](http://proselint.com/)|
-| XML | [xmllint](http://xmlsoft.org/xmllint.html/)|
+| XML | [xmllint](http://xmlsoft.org/xmllint.html)|
-| YAML | [yamllint](https://yamllint.readthedocs.io/) |
+| YAML | [swaglint](https://github.com/byCedric/swaglint), [yamllint](https://yamllint.readthedocs.io/) |
-
-* *^ No linters for text or Vim help filetypes are enabled by default.*
 
 <a name="usage"></a>
 
 ## 2. Usage
 
+<a name="usage-linting"></a>
+
+### 2.i Linting
+
 Once this plugin is installed, while editing your files in supported
 languages and tools which have been correctly installed,
 this plugin will send the contents of your text buffers to a variety of
@@ -143,8 +170,46 @@ documented in [the Vim help file](doc/ale.txt). For more information on the
 options ALE offers, consult `:help ale-options` for global options and `:help
 ale-linter-options` for options specified to particular linters.
 
+<a name="usage-fixing"></a>
+
+### 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. See `:help ale-fix`.
+for different filetypes with the `g:ale_fixers` variable. For example, the
+following code can be used to fix JavaScript code with ESLint:
+
+```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.
+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.
+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.
+
+<a name="usage-completion"></a>
+
+### 2.iii Completion
+
+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:
+
+```vim
+" Enable completion where available.
+let g:ale_completion_enabled = 1
+```
+
+See `:help ale-completion` for more information.
 
 <a name="installation"></a>
 
@@ -152,13 +217,59 @@ for different filetypes with the `g:ale_fixers` variable. See `:help ale-fix`.
 
 To install this plugin, you should use one of the following methods.
 For Windows users, replace usage of the Unix `~/.vim` directory with
-`%USERPROFILE%\_vim`, or another directory if you have configured
+`%USERPROFILE%\vimfiles`, or another directory if you have configured
 Vim differently. On Windows, your `~/.vimrc` file will be similarly
 stored in `%USERPROFILE%\_vimrc`.
 
+<a name="standard-installation"></a>
+
+### 3.i. Installation with Vim package management
+
+In Vim 8 and NeoVim, you can install plugins easily without needing to use
+any other tools. Simply clone the plugin into your `pack` directory.
+
+#### Vim 8 on Unix
+
+```bash
+mkdir -p ~/.vim/pack/git-plugins/start
+git clone https://github.com/w0rp/ale.git ~/.vim/pack/git-plugins/start/ale
+```
+
+#### NeoVim on Unix
+
+```bash
+mkdir -p ~/.local/share/nvim/site/pack/git-plugins/start
+git clone https://github.com/w0rp/ale.git ~/.local/share/nvim/site/pack/git-plugins/start/ale
+```
+
+#### Vim 8 on Windows
+
+```bash
+# Run these commands in the "Git for Windows" Bash terminal
+mkdir -p ~/vimfiles/pack/git-plugins/start
+git clone https://github.com/w0rp/ale.git ~/vimfiles/pack/git-plugins/start/ale
+```
+
+#### Generating Vim help files
+
+You can add the following line to your vimrc files to generate documentation
+tags automatically, if you don't have something similar already, so you can use
+the `:help` command to consult ALE's online documentation:
+
+```vim
+" Put these lines at the very end of your vimrc file.
+
+" Load all plugins now.
+" Plugins need to be added to runtimepath before helptags can be generated.
+packloadall
+" Load all of the helptags now, after plugins have been loaded.
+" All messages and errors will be ignored.
+silent! helptags ALL
+```
+
 <a name="installation-with-pathogen"></a>
 
-### 3.i. Installation with Pathogen
+### 3.ii. Installation with Pathogen
 
 To install this module with [Pathogen](https://github.com/tpope/vim-pathogen),
 you should clone this repository to your bundle directory, and ensure
@@ -172,7 +283,7 @@ git clone https://github.com/w0rp/ale.git
 
 <a name="installation-with-vundle"></a>
 
-### 3.ii. Installation with Vundle
+### 3.iii. Installation with Vundle
 
 You can install this plugin using [Vundle](https://github.com/VundleVim/Vundle.vim)
 by using the path on GitHub for this repository.
@@ -183,41 +294,6 @@ Plugin 'w0rp/ale'
 
 See the Vundle documentation for more information.
 
-<a name="manual-installation"></a>
-
-### 3.iii. Manual Installation
-
-For installation without a package manager, you can clone this git repository
-into a bundle directory as with pathogen, and add the repository to your
-runtime path yourself. First clone the repository.
-
-```bash
-cd ~/.vim/bundle
-git clone https://github.com/w0rp/ale.git
-```
-
-Then, modify your `~/.vimrc` file to add this plugin to your runtime path.
-
-```vim
-set nocompatible
-filetype off
-
-let &runtimepath.=',~/.vim/bundle/ale'
-
-filetype plugin on
-```
-
-You can add the following line to generate documentation tags automatically,
-if you don't have something similar already, so you can use the `:help` command
-to consult ALE's online documentation:
-
-```vim
-silent! helptags ALL
-```
-
-Because the author of this plugin is a weird nerd, this is his preferred
-installation method.
-
 <a name="contributing"></a>
 
 ## 4. Contributing
@@ -334,9 +410,70 @@ set statusline=%{LinterStatus()}
 
 See `:help ale#statusline#Count()` for more information.
 
+<a name="faq-lightline"></a>
+
+### 5.v. How can I show errors or warnings in my lightline?
+
+[lightline](https://github.com/itchyny/lightline.vim) does not have built-in
+support for ALE, nevertheless it's easy to do it yourself:
+
+```vim
+" This is regular lightline configuration, we just added
+" 'linter_warnings', 'linter_errors' and 'linter_ok' to
+" the active right panel. Feel free to move it anywhere.
+" `component_expand' and `component_type' are required.
+"
+" For more info on how this works, see lightline documentation.
+let g:lightline = {
+      \ 'active': {
+      \   'right': [ [ 'lineinfo' ],
+      \              [ 'percent' ],
+      \              [ 'linter_warnings', 'linter_errors', 'linter_ok' ],
+      \              [ 'fileformat', 'fileencoding', 'filetype' ] ]
+      \ },
+      \ 'component_expand': {
+      \   'linter_warnings': 'LightlineLinterWarnings',
+      \   'linter_errors': 'LightlineLinterErrors',
+      \   'linter_ok': 'LightlineLinterOK'
+      \ },
+      \ 'component_type': {
+      \   'linter_warnings': 'warning',
+      \   'linter_errors': 'error',
+      \   'linter_ok': 'ok'
+      \ },
+      \ }
+
+autocmd User ALELint call lightline#update()
+
+" ale + lightline
+function! LightlineLinterWarnings() abort
+  let l:counts = ale#statusline#Count(bufnr(''))
+  let l:all_errors = l:counts.error + l:counts.style_error
+  let l:all_non_errors = l:counts.total - l:all_errors
+  return l:counts.total == 0 ? '' : printf('%d --', all_non_errors)
+endfunction
+
+function! LightlineLinterErrors() abort
+  let l:counts = ale#statusline#Count(bufnr(''))
+  let l:all_errors = l:counts.error + l:counts.style_error
+  let l:all_non_errors = l:counts.total - l:all_errors
+  return l:counts.total == 0 ? '' : printf('%d >>', all_errors)
+endfunction
+
+function! LightlineLinterOK() abort
+  let l:counts = ale#statusline#Count(bufnr(''))
+  let l:all_errors = l:counts.error + l:counts.style_error
+  let l:all_non_errors = l:counts.total - l:all_errors
+  return l:counts.total == 0 ? '✓' : ''
+endfunction
+```
+
+See `:help ale#statusline#Count()` and [lightline documentation](https://github.com/itchyny/lightline.vim#advanced-configuration)
+for more information.
+
 <a name="faq-echo-format"></a>
 
-### 5.v. How can I change the format for echo messages?
+### 5.vi. How can I change the format for echo messages?
 
 There are 3 global options that allow customizing the echoed message.
 
@@ -361,7 +498,7 @@ Will give you:
 
 <a name="faq-autocmd"></a>
 
-### 5.vi. How can I execute some code when ALE stops linting?
+### 5.vii. How can I execute some code when ALE stops linting?
 
 ALE runs its own [autocmd](http://vimdoc.sourceforge.net/htmldoc/autocmd.html)
 event whenever has a linter has been successfully executed and processed. This
@@ -376,7 +513,7 @@ augroup END
 
 <a name="faq-navigation"></a>
 
-### 5.vii. How can I navigate between errors quickly?
+### 5.viii. How can I navigate between errors quickly?
 
 ALE offers some commands with `<Plug>` keybinds for moving between warnings and
 errors quickly. You can map the keys Ctrl+j and Ctrl+k to moving between errors
@@ -392,7 +529,7 @@ For more information, consult the online documentation with
 
 <a name="faq-lint-on-save"></a>
 
-### 5.viii. How can I run linters only when I save files?
+### 5.ix. How can I run linters only when I save files?
 
 ALE offers an option `g:ale_lint_on_save` for enabling running the linters
 when files are saved. This option is enabled by default. If you only
@@ -412,7 +549,7 @@ files, you can set `g:ale_lint_on_save` to `0`.
 
 <a name="faq-quickfix"></a>
 
-### 5.ix. How can I use the quickfix list instead of the loclist?
+### 5.x. How can I use the quickfix list instead of the loclist?
 
 The quickfix list can be enabled by turning the `g:ale_set_quickfix`
 option on. If you wish to also disable the loclist, you can disable
@@ -439,7 +576,7 @@ let g:ale_keep_list_window_open = 1
 
 <a name="faq-jsx-stylelint-eslint"></a>
 
-### 5.x. How can I check JSX files with both stylelint and eslint?
+### 5.xi. How can I check JSX files with both stylelint and eslint?
 
 If you configure ALE options correctly in your vimrc file, and install
 the right tools, you can check JSX files with stylelint and eslint.
@@ -472,7 +609,7 @@ no linter will be run twice for the same file.
 
 <a name="faq-my-battery-is-sad"></a>
 
-### 5.xi. Will this plugin eat all of my laptop battery power?
+### 5.xii. Will this plugin eat all of my laptop battery power?
 
 ALE takes advantage of the power of various tools to check your code. This of
 course means that CPU time will be used to continuously check your code. If you

ale_linters/ansible/ansible_lint.vim

@@ -15,26 +15,26 @@ function! ale_linters#ansible#ansible_lint#Handle(buffer, lines) abort
     " Matches patterns line the following:
     "
     " test.yml:35: [EANSIBLE0002] Trailing whitespace
-    let l:pattern = '\v^[a-zA-Z]?:?[^:]+:(\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)
-        let l:code = l:match[3]
+        let l:code = l:match[4]
 
-        if (l:code ==# 'EANSIBLE002')
+        if l:code is# 'EANSIBLE002'
-        \ && !ale#Var(a:buffer, 'warn_about_trailing_whitespace')
+        \&& !ale#Var(a:buffer, 'warn_about_trailing_whitespace')
             " Skip warnings for trailing whitespace if the option is off.
             continue
         endif
 
-        let l:item = {
+        if ale#path#IsBufferPath(a:buffer, l:match[1])
-        \   'lnum': l:match[1] + 0,
+            call add(l:output, {
-        \   'col': l:match[2] + 0,
+            \   'lnum': l:match[2] + 0,
-        \   'text': l:code . ': ' . l:match[4],
+            \   'col': l:match[3] + 0,
-        \   'type': l:code[:0] ==# 'E' ? 'E' : 'W',
+            \   'text': l:code . ': ' . l:match[5],
-        \}
+            \   'type': l:code[:0] is# 'E' ? 'E' : 'W',
-
+            \})
-        call add(l:output, l:item)
+        endif
     endfor
 
     return l:output

ale_linters/c/clang.vim

@@ -1,20 +1,20 @@
 " Author: Masahiro H https://github.com/mshr-h
 " Description: clang linter for c files
 
-" Set this option to change the Clang options for warnings for C.
+call ale#Set('c_clang_executable', 'clang')
-if !exists('g:ale_c_clang_options')
+call ale#Set('c_clang_options', '-std=c11 -Wall')
-    " let g:ale_c_clang_options = '-Wall'
+
-    " let g:ale_c_clang_options = '-std=c99 -Wall'
+function! ale_linters#c#clang#GetExecutable(buffer) abort
-    " c11 compatible
+    return ale#Var(a:buffer, 'c_clang_executable')
-    let g:ale_c_clang_options = '-std=c11 -Wall'
+endfunction
-endif
 
 function! ale_linters#c#clang#GetCommand(buffer) abort
     let l:paths = ale#c#FindLocalHeaderPaths(a:buffer)
 
     " -iquote with the directory the file is in makes #include work for
     "  headers in the same directory.
-    return 'clang -S -x c -fsyntax-only '
+    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)
     \   . ale#Var(a:buffer, 'c_clang_options') . ' -'
@@ -23,7 +23,7 @@ endfunction
 call ale#linter#Define('c', {
 \   'name': 'clang',
 \   'output_stream': 'stderr',
-\   'executable': 'clang',
+\   'executable_callback': 'ale_linters#c#clang#GetExecutable',
 \   'command_callback': 'ale_linters#c#clang#GetCommand',
 \   'callback': 'ale#handlers#gcc#HandleGCCFormat',
 \})

ale_linters/c/clangtidy.vim

@@ -0,0 +1,64 @@
+" Author: vdeurzen <tim@kompiler.org>, w0rp <devw0rp@gmail.com>,
+" gagbo <gagbobada@gmail.com>, Andrej Radovic <r.andrej@gmail.com>
+" Description: clang-tidy linter for c files
+
+call ale#Set('c_clangtidy_executable', 'clang-tidy')
+" Set this option to check the checks clang-tidy will apply.
+" The number of checks that can be applied to C files is limited in contrast to
+" C++
+"
+" Consult the check list in clang-tidy's documentation:
+" http://clang.llvm.org/extra/clang-tidy/checks/list.html
+
+call ale#Set('c_clangtidy_checks', ['*'])
+" Set this option to manually set some options for clang-tidy.
+" This will disable compile_commands.json detection.
+call ale#Set('c_clangtidy_options', '')
+call ale#Set('c_build_dir', '')
+
+function! ale_linters#c#clangtidy#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'c_clangtidy_executable')
+endfunction
+
+function! s:GetBuildDirectory(buffer) abort
+    " Don't include build directory for header files, as compile_commands.json
+    " files don't consider headers to be translation units, and provide no
+    " commands for compiling header files.
+    if expand('#' . a:buffer) =~# '\v\.(h|hpp)$'
+        return ''
+    endif
+
+    let l:build_dir = ale#Var(a:buffer, 'c_build_dir')
+
+    " c_build_dir has the priority if defined
+    if !empty(l:build_dir)
+        return l:build_dir
+    endif
+
+    return ale#c#FindCompileCommands(a:buffer)
+endfunction
+
+function! ale_linters#c#clangtidy#GetCommand(buffer) abort
+    let l:checks = join(ale#Var(a:buffer, 'c_clangtidy_checks'), ',')
+    let l:build_dir = s:GetBuildDirectory(a:buffer)
+
+    " Get the extra options if we couldn't find a build directory.
+    let l:options = empty(l:build_dir)
+    \   ? ale#Var(a:buffer, 'c_clangtidy_options')
+    \   : ''
+
+    return ale#Escape(ale_linters#c#clangtidy#GetExecutable(a:buffer))
+    \   . (!empty(l:checks) ? ' -checks=' . ale#Escape(l:checks) : '')
+    \   . ' %s'
+    \   . (!empty(l:build_dir) ? ' -p ' . ale#Escape(l:build_dir) : '')
+    \   . (!empty(l:options) ? ' -- ' . l:options : '')
+endfunction
+
+call ale#linter#Define('c', {
+\   'name': 'clangtidy',
+\   'output_stream': 'stdout',
+\   'executable_callback': 'ale_linters#c#clangtidy#GetExecutable',
+\   'command_callback': 'ale_linters#c#clangtidy#GetCommand',
+\   'callback': 'ale#handlers#gcc#HandleGCCFormat',
+\   'lint_file': 1,
+\})

ale_linters/c/cppcheck.vim

@@ -1,8 +1,12 @@
 " Author: Bart Libert <bart.libert@gmail.com>
 " Description: cppcheck linter for c files
 
-" Set this option to change the cppcheck options
+call ale#Set('c_cppcheck_executable', 'cppcheck')
-let g:ale_c_cppcheck_options = get(g:, 'ale_c_cppcheck_options', '--enable=style')
+call ale#Set('c_cppcheck_options', '--enable=style')
+
+function! ale_linters#c#cppcheck#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'c_cppcheck_executable')
+endfunction
 
 function! ale_linters#c#cppcheck#GetCommand(buffer) abort
     " Search upwards from the file for compile_commands.json.
@@ -19,7 +23,8 @@ function! ale_linters#c#cppcheck#GetCommand(buffer) abort
     \   : ''
 
     return l:cd_command
-    \   . 'cppcheck -q --language=c '
+    \   . ale#Escape(ale_linters#c#cppcheck#GetExecutable(a:buffer))
+    \   . ' -q --language=c '
     \   . l:compile_commands_option
     \   . ale#Var(a:buffer, 'c_cppcheck_options')
     \   . ' %t'
@@ -28,7 +33,7 @@ endfunction
 call ale#linter#Define('c', {
 \   'name': 'cppcheck',
 \   'output_stream': 'both',
-\   'executable': 'cppcheck',
+\   'executable_callback': 'ale_linters#c#cppcheck#GetExecutable',
 \   'command_callback': 'ale_linters#c#cppcheck#GetCommand',
 \   'callback': 'ale#handlers#cppcheck#HandleCppCheckFormat',
 \})

ale_linters/c/gcc.vim

@@ -1,20 +1,20 @@
 " Author: w0rp <devw0rp@gmail.com>
 " Description: gcc linter for c files
 
-" Set this option to change the GCC options for warnings for C.
+call ale#Set('c_gcc_executable', 'gcc')
-if !exists('g:ale_c_gcc_options')
+call ale#Set('c_gcc_options', '-std=c11 -Wall')
-    " let g:ale_c_gcc_options = '-Wall'
+
-    " let g:ale_c_gcc_options = '-std=c99 -Wall'
+function! ale_linters#c#gcc#GetExecutable(buffer) abort
-    " c11 compatible
+    return ale#Var(a:buffer, 'c_gcc_executable')
-    let g:ale_c_gcc_options = '-std=c11 -Wall'
+endfunction
-endif
 
 function! ale_linters#c#gcc#GetCommand(buffer) abort
     let l:paths = ale#c#FindLocalHeaderPaths(a:buffer)
 
     " -iquote with the directory the file is in makes #include work for
     "  headers in the same directory.
-    return 'gcc -S -x c -fsyntax-only '
+    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)
     \   . ale#Var(a:buffer, 'c_gcc_options') . ' -'
@@ -23,7 +23,7 @@ endfunction
 call ale#linter#Define('c', {
 \   'name': 'gcc',
 \   'output_stream': 'stderr',
-\   'executable': 'gcc',
+\   'executable_callback': 'ale_linters#c#gcc#GetExecutable',
 \   'command_callback': 'ale_linters#c#gcc#GetCommand',
 \   'callback': 'ale#handlers#gcc#HandleGCCFormat',
 \})

ale_linters/coffee/coffeelint.vim

@@ -27,7 +27,7 @@ function! ale_linters#coffee#coffeelint#Handle(buffer, lines) abort
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
         call add(l:output, {
         \   'lnum': str2nr(l:match[1]),
-        \   'type': l:match[3] ==# 'error' ? 'E' : 'W',
+        \   'type': l:match[3] is# 'error' ? 'E' : 'W',
         \   'text': l:match[4],
         \})
     endfor

ale_linters/cpp/clang.vim

@@ -1,17 +1,20 @@
 " Author: Tomota Nakamura <https://github.com/tomotanakamura>
 " Description: clang linter for cpp files
 
-" Set this option to change the Clang options for warnings for CPP.
+call ale#Set('cpp_clang_executable', 'clang++')
-if !exists('g:ale_cpp_clang_options')
+call ale#Set('cpp_clang_options', '-std=c++14 -Wall')
-    let g:ale_cpp_clang_options = '-std=c++14 -Wall'
+
-endif
+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)
 
     " -iquote with the directory the file is in makes #include work for
     "  headers in the same directory.
-    return 'clang++ -S -x c++ -fsyntax-only '
+    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)
     \   . ale#Var(a:buffer, 'cpp_clang_options') . ' -'
@@ -20,7 +23,7 @@ endfunction
 call ale#linter#Define('cpp', {
 \   'name': 'clang',
 \   'output_stream': 'stderr',
-\   'executable': 'clang++',
+\   'executable_callback': 'ale_linters#cpp#clang#GetExecutable',
 \   'command_callback': 'ale_linters#cpp#clang#GetCommand',
 \   'callback': 'ale#handlers#gcc#HandleGCCFormat',
 \})

ale_linters/cpp/clangcheck.vim

@@ -1,36 +1,38 @@
 " Author: gagbo <gagbobada@gmail.com>
 " Description: clang-check linter for cpp files
 
-" Set this option to manually set some options for clang-check.
+call ale#Set('cpp_clangcheck_executable', 'clang-check')
-let g:ale_cpp_clangcheck_options = get(g:, 'ale_cpp_clangcheck_options', '')
+call ale#Set('cpp_clangcheck_options', '')
+call ale#Set('c_build_dir', '')
 
-" Set this option to manually point to the build directory for clang-tidy.
+function! ale_linters#cpp#clangcheck#GetExecutable(buffer) abort
-" This will disable all the other clangtidy_options, since compilation
+    return ale#Var(a:buffer, 'cpp_clangcheck_executable')
-" flags are contained in the json
+endfunction
-let g:ale_c_build_dir = get(g:, 'ale_c_build_dir', '')
 
 function! ale_linters#cpp#clangcheck#GetCommand(buffer) abort
     let l:user_options = ale#Var(a:buffer, 'cpp_clangcheck_options')
-    let l:extra_options = !empty(l:user_options)
-    \   ? l:user_options
-    \   : ''
 
     " Try to find compilation database to link automatically
-    let l:user_build_dir = ale#Var(a:buffer, 'c_build_dir')
+    let l:build_dir = ale#Var(a:buffer, 'c_build_dir')
-    if empty(l:user_build_dir)
-        let l:user_build_dir = ale#c#FindCompileCommands(a:buffer)
-    endif
-    let l:build_options = !empty(l:user_build_dir)
-    \   ? ' -p ' . ale#Escape(l:user_build_dir)
-    \   : ''
 
-    return 'clang-check -analyze ' . '%s' . l:extra_options . l:build_options
+    if empty(l:build_dir)
+        let l:build_dir = ale#c#FindCompileCommands(a:buffer)
+    endif
+
+    " The extra arguments in the command are used to prevent .plist files from
+    " being generated. These are only added if no build directory can be
+    " detected.
+    return ale#Escape(ale_linters#cpp#clangcheck#GetExecutable(a:buffer))
+    \   . ' -analyze %s'
+    \   . (!empty(l:user_options) ? ' ' . l:user_options : '')
+    \   . (!empty(l:build_dir) ? ' -p ' . ale#Escape(l:build_dir) : '')
+    \   . (empty(l:build_dir) ? ' -extra-arg -Xanalyzer -extra-arg -analyzer-output=text' : '')
 endfunction
 
 call ale#linter#Define('cpp', {
 \   'name': 'clangcheck',
 \   'output_stream': 'stderr',
-\   'executable': 'clang-check',
+\   'executable_callback': 'ale_linters#cpp#clangcheck#GetExecutable',
 \   'command_callback': 'ale_linters#cpp#clangcheck#GetCommand',
 \   'callback': 'ale#handlers#gcc#HandleGCCFormat',
 \   'lint_file': 1,

ale_linters/cpp/clangtidy.vim

@@ -2,51 +2,56 @@
 " gagbo <gagbobada@gmail.com>
 " Description: clang-tidy linter for cpp files
 
+call ale#Set('cpp_clangtidy_executable', 'clang-tidy')
 " Set this option to check the checks clang-tidy will apply.
-let g:ale_cpp_clangtidy_checks = get(g:, 'ale_cpp_clangtidy_checks', ['*'])
+call ale#Set('cpp_clangtidy_checks', ['*'])
-
 " Set this option to manually set some options for clang-tidy.
 " This will disable compile_commands.json detection.
-let g:ale_cpp_clangtidy_options = get(g:, 'ale_cpp_clangtidy_options', '')
+call ale#Set('cpp_clangtidy_options', '')
+call ale#Set('c_build_dir', '')
 
-" Set this option to manually point to the build directory for clang-tidy.
+function! ale_linters#cpp#clangtidy#GetExecutable(buffer) abort
-" This will disable all the other clangtidy_options, since compilation
+    return ale#Var(a:buffer, 'cpp_clangtidy_executable')
-" flags are contained in the json
+endfunction
-let g:ale_c_build_dir = get(g:, 'ale_c_build_dir', '')
 
+function! s:GetBuildDirectory(buffer) abort
+    " Don't include build directory for header files, as compile_commands.json
+    " files don't consider headers to be translation units, and provide no
+    " commands for compiling header files.
+    if expand('#' . a:buffer) =~# '\v\.(h|hpp)$'
+        return ''
+    endif
 
-function! ale_linters#cpp#clangtidy#GetCommand(buffer) abort
+    let l:build_dir = ale#Var(a:buffer, 'c_build_dir')
-    let l:check_list = ale#Var(a:buffer, 'cpp_clangtidy_checks')
-    let l:check_option = !empty(l:check_list)
-    \   ? '-checks=' . ale#Escape(join(l:check_list, ',')) . ' '
-    \   : ''
-    let l:user_options = ale#Var(a:buffer, 'cpp_clangtidy_options')
-    let l:user_build_dir = ale#Var(a:buffer, 'c_build_dir')
 
     " c_build_dir has the priority if defined
-    if empty(l:user_build_dir)
+    if !empty(l:build_dir)
-        let l:user_build_dir = ale#c#FindCompileCommands(a:buffer)
+        return l:build_dir
     endif
 
-    " We check again if user_builddir stayed empty after the
+    return ale#c#FindCompileCommands(a:buffer)
-    " c_build_dir_names check
+endfunction
-    " If we found the compilation database we override the value of
-    " l:extra_options
-    if empty(l:user_build_dir)
-        let l:extra_options = !empty(l:user_options)
-        \   ? ' -- ' . l:user_options
-        \   : ''
-    else
-        let l:extra_options = ' -p ' . ale#Escape(l:user_build_dir)
-    endif
 
-    return 'clang-tidy ' . l:check_option . '%s' . l:extra_options
+function! ale_linters#cpp#clangtidy#GetCommand(buffer) abort
+    let l:checks = join(ale#Var(a:buffer, 'cpp_clangtidy_checks'), ',')
+    let l:build_dir = s:GetBuildDirectory(a:buffer)
+
+    " Get the extra options if we couldn't find a build directory.
+    let l:options = empty(l:build_dir)
+    \   ? ale#Var(a:buffer, 'cpp_clangtidy_options')
+    \   : ''
+
+    return ale#Escape(ale_linters#cpp#clangtidy#GetExecutable(a:buffer))
+    \   . (!empty(l:checks) ? ' -checks=' . ale#Escape(l:checks) : '')
+    \   . ' %s'
+    \   . (!empty(l:build_dir) ? ' -p ' . ale#Escape(l:build_dir) : '')
+    \   . (!empty(l:options) ? ' -- ' . l:options : '')
 endfunction
 
 call ale#linter#Define('cpp', {
 \   'name': 'clangtidy',
 \   'output_stream': 'stdout',
-\   'executable': 'clang-tidy',
+\   'executable_callback': 'ale_linters#cpp#clangtidy#GetExecutable',
 \   'command_callback': 'ale_linters#cpp#clangtidy#GetCommand',
 \   'callback': 'ale#handlers#gcc#HandleGCCFormat',
 \   'lint_file': 1,

ale_linters/cpp/cppcheck.vim

@@ -1,8 +1,12 @@
 " Author: Bart Libert <bart.libert@gmail.com>
 " Description: cppcheck linter for cpp files
 
-" Set this option to change the cppcheck options
+call ale#Set('cpp_cppcheck_executable', 'cppcheck')
-let g:ale_cpp_cppcheck_options = get(g:, 'ale_cpp_cppcheck_options', '--enable=style')
+call ale#Set('cpp_cppcheck_options', '--enable=style')
+
+function! ale_linters#cpp#cppcheck#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'cpp_cppcheck_executable')
+endfunction
 
 function! ale_linters#cpp#cppcheck#GetCommand(buffer) abort
     " Search upwards from the file for compile_commands.json.
@@ -19,7 +23,8 @@ function! ale_linters#cpp#cppcheck#GetCommand(buffer) abort
     \   : ''
 
     return l:cd_command
-    \   . 'cppcheck -q --language=c++ '
+    \   . ale#Escape(ale_linters#cpp#cppcheck#GetExecutable(a:buffer))
+    \   . ' -q --language=c++ '
     \   . l:compile_commands_option
     \   . ale#Var(a:buffer, 'cpp_cppcheck_options')
     \   . ' %t'
@@ -28,7 +33,7 @@ endfunction
 call ale#linter#Define('cpp', {
 \   'name': 'cppcheck',
 \   'output_stream': 'both',
-\   'executable': 'cppcheck',
+\   'executable_callback': 'ale_linters#cpp#cppcheck#GetExecutable',
 \   'command_callback': 'ale_linters#cpp#cppcheck#GetCommand',
 \   'callback': 'ale#handlers#cppcheck#HandleCppCheckFormat',
 \})

ale_linters/cpp/cpplint.vim

@@ -1,15 +1,26 @@
 " Author: Dawid Kurek https://github.com/dawikur
 " Description: cpplint for cpp files
 
-if !exists('g:ale_cpp_cpplint_options')
+call ale#Set('cpp_cpplint_executable', 'cpplint')
-    let g:ale_cpp_cpplint_options = ''
+call ale#Set('cpp_cpplint_options', '')
-endif
+
+function! ale_linters#cpp#cpplint#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'cpp_cpplint_executable')
+endfunction
+
+function! ale_linters#cpp#cpplint#GetCommand(buffer) abort
+    let l:options = ale#Var(a:buffer, 'cpp_cpplint_options')
+
+    return ale#Escape(ale_linters#cpp#cpplint#GetExecutable(a:buffer))
+    \   . (!empty(l:options) ? ' ' . l:options : '')
+    \   . ' %s'
+endfunction
 
 call ale#linter#Define('cpp', {
 \   'name': 'cpplint',
 \   'output_stream': 'stderr',
-\   'executable': 'cpplint',
+\   'executable_callback': 'ale_linters#cpp#cpplint#GetExecutable',
-\   'command': 'cpplint %s',
+\   'command_callback': 'ale_linters#cpp#cpplint#GetCommand',
 \   'callback': 'ale#handlers#cpplint#HandleCppLintFormat',
 \   'lint_file': 1,
 \})

ale_linters/cpp/gcc.vim

@@ -1,27 +1,20 @@
 " Author: geam <mdelage@student.42.fr>
 " Description: gcc linter for cpp files
+"
+call ale#Set('cpp_gcc_executable', 'gcc')
+call ale#Set('cpp_gcc_options', '-std=c++14 -Wall')
 
-" Set this option to change the GCC options for warnings for C.
+function! ale_linters#cpp#gcc#GetExecutable(buffer) abort
-if !exists('g:ale_cpp_gcc_options')
+    return ale#Var(a:buffer, 'cpp_gcc_executable')
-    let s:version = ale#handlers#gcc#ParseGCCVersion(systemlist('gcc --version'))
+endfunction
-
-    if !empty(s:version) && ale#semver#GreaterOrEqual(s:version, [4, 9, 0])
-        " Use c++14 support in 4.9 and above.
-        let g:ale_cpp_gcc_options = '-std=c++14 -Wall'
-    else
-        " Use c++1y in older versions.
-        let g:ale_cpp_gcc_options = '-std=c++1y -Wall'
-    endif
-
-    unlet! s:version
-endif
 
 function! ale_linters#cpp#gcc#GetCommand(buffer) abort
     let l:paths = ale#c#FindLocalHeaderPaths(a:buffer)
 
     " -iquote with the directory the file is in makes #include work for
     "  headers in the same directory.
-    return 'gcc -S -x c++ -fsyntax-only '
+    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)
     \   . ale#Var(a:buffer, 'cpp_gcc_options') . ' -'
@@ -30,7 +23,7 @@ endfunction
 call ale#linter#Define('cpp', {
 \   'name': 'g++',
 \   'output_stream': 'stderr',
-\   'executable': 'g++',
+\   'executable_callback': 'ale_linters#cpp#gcc#GetExecutable',
 \   'command_callback': 'ale_linters#cpp#gcc#GetCommand',
 \   'callback': 'ale#handlers#gcc#HandleGCCFormat',
 \})

ale_linters/crystal/crystal.vim

@@ -4,31 +4,21 @@
 function! ale_linters#crystal#crystal#Handle(buffer, lines) abort
     let l:output = []
 
-    let l:lines = join(a:lines, '')
+    for l:error in ale#util#FuzzyJSONDecode(a:lines, [])
-
+        call add(l:output, {
-    if !empty(l:lines)
+        \   'lnum': l:error.line + 0,
-      let l:errors = json_decode(l:lines)
+        \   'col': l:error.column + 0,
-
+        \   'text': l:error.message,
-      for l:error in l:errors
+        \})
-          call add(l:output, {
+    endfor
-          \   'bufnr': a:buffer,
-          \   'lnum': l:error.line + 0,
-          \   'col': l:error.column + 0,
-          \   'text': l:error.message,
-          \   'type': 'E',
-          \})
-      endfor
-    endif
 
     return l:output
 endfunction
 
 function! ale_linters#crystal#crystal#GetCommand(buffer) abort
-    let l:crystal_cmd = 'crystal build -f json --no-codegen --no-color -o '
+    return 'crystal build -f json --no-codegen --no-color -o '
-    let l:crystal_cmd .= ale#Escape(g:ale#util#nul_file)
+    \   . ale#Escape(g:ale#util#nul_file)
-    let l:crystal_cmd .= ' %s'
+    \   . ' %s'
-
-    return l:crystal_cmd
 endfunction
 
 call ale#linter#Define('crystal', {

ale_linters/cs/mcsc.vim

@@ -0,0 +1,87 @@
+" general mcs options which are likely to stay constant across
+" source trees like -pkg:dotnet
+let g:ale_cs_mcsc_options = get(g:, 'ale_cs_mcsc_options', '')
+
+" path string pointing the linter to the base path of the
+" source tree to check
+let g:ale_cs_mcsc_source = get(g:, 'ale_cs_mcsc_source','.')
+
+" list of search paths for additional assemblies to consider
+let g:ale_cs_mcsc_assembly_path = get(g:, 'ale_cs_mcsc_assembly_path',[])
+
+" list of assemblies to consider
+let g:ale_cs_mcsc_assemblies = get(g:, 'ale_cs_mcsc_assemblies',[])
+function! ale_linters#cs#mcsc#GetCommand(buffer) abort
+
+    " if list of assembly search paths is not empty convert it to
+    " appropriate -lib: parameter of mcs
+    let l:path = ale#Var(a:buffer, 'cs_mcsc_assembly_path')
+
+    if !empty(l:path)
+         let l:path = '-lib:"' . join(l:path, '","') .'"'
+    else
+        let l:path =''
+    endif
+
+    " if list of assemblies to link is not empty convert it to the
+    " appropriate -r: parameter of mcs
+    let l:assemblies = ale#Var(a:buffer, 'cs_mcsc_assemblies')
+
+    if !empty(l:assemblies)
+        let l:assemblies = '-r:"' . join(l:assemblies, '","') . '"'
+    else
+        let l:assemblies =''
+    endif
+
+    " register temporary module target file with ale
+    let l:out = tempname()
+    call ale#engine#ManageFile(a:buffer, l:out)
+
+    " assemble linter command string to be executed by ale
+    " implicitly set -unsafe mcs flag set compilation
+    " target to module (-t:module), direct mcs output to
+    " temporary file (-out)
+    "
+    return 'cd "' . ale#Var(a:buffer, 'cs_mcsc_source') . '";'
+    \    . 'mcs -unsafe'
+    \    . ' ' . ale#Var(a:buffer, 'cs_mcsc_options')
+    \    . ' ' . l:path
+    \    . ' ' . l:assemblies
+    \    . ' -out:' . l:out
+    \    . ' -t:module'
+    \    . ' -recurse:"*.cs"'
+endfunction
+
+function! ale_linters#cs#mcsc#Handle(buffer, lines) abort
+    " Look for lines like the following.
+    "
+    " Tests.cs(12,29): error CSXXXX: ; expected
+    "
+    " NOTE: pattern also captures file name as linter compiles all
+    " files within the source tree rooted at the specified source
+    " path and not just the file loaded in the buffer
+    let l:pattern = '^\(.\+\.cs\)(\(\d\+\),\(\d\+\)): \(.\+\): \(.\+\)'
+    let l:output = []
+    let l:source = ale#Var(a:buffer, 'cs_mcsc_source')
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        call add(l:output, {
+        \   'filename': fnamemodify(l:source . '/' . l:match[1], ':p'),
+        \   'lnum': l:match[2] + 0,
+        \   'col': l:match[3] + 0,
+        \   'text': l:match[4] . ': ' . l:match[5],
+        \   'type': l:match[4] =~# '^error' ? 'E' : 'W',
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('cs',{
+\   'name': 'mcsc',
+\   'output_stream': 'stderr',
+\   'executable': 'mcs',
+\   'command_callback': 'ale_linters#cs#mcsc#GetCommand',
+\   'callback': 'ale_linters#cs#mcsc#Handle',
+\   'lint_file': 1
+\})

ale_linters/cuda/nvcc.vim

@@ -0,0 +1,56 @@
+" Author: blahgeek <i@blahgeek.com>
+" Description: NVCC linter for cuda files
+
+call ale#Set('cuda_nvcc_executable', 'nvcc')
+call ale#Set('cuda_nvcc_options', '-std=c++11')
+
+function! ale_linters#cuda#nvcc#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'cuda_nvcc_executable')
+endfunction
+
+function! ale_linters#cuda#nvcc#GetCommand(buffer) abort
+    " Unused: use ale#util#nul_file
+    " let l:output_file = tempname() . '.ii'
+    " call ale#engine#ManageFile(a:buffer, l:output_file)
+
+    return ale#Escape(ale_linters#cuda#nvcc#GetExecutable(a:buffer))
+    \   . ' -cuda '
+    \   . ale#c#IncludeOptions(ale#c#FindLocalHeaderPaths(a:buffer))
+    \   . ale#Var(a:buffer, 'cuda_nvcc_options') . ' %s'
+    \   . ' -o ' . g:ale#util#nul_file
+endfunction
+
+function! ale_linters#cuda#nvcc#HandleNVCCFormat(buffer, lines) abort
+    " Look for lines like the following.
+    "
+    " test.cu(8): error: argument of type "void *" is incompatible with parameter of type "int *"
+    let l:pattern = '\v^([^:\(\)]+):?\(?(\d+)\)?:(\d+)?:?\s*\w*\s*(error|warning): (.+)$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+
+        let l:item = {
+        \   'lnum': str2nr(l:match[2]),
+        \   'type': l:match[4] =~# 'error' ? 'E' : 'W',
+        \   'text': l:match[5],
+        \   'filename': fnamemodify(l:match[1], ':p'),
+        \}
+
+        if !empty(l:match[3])
+            let l:item.col = str2nr(l:match[3])
+        endif
+
+        call add(l:output, l:item)
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('cuda', {
+\   'name': 'nvcc',
+\   'output_stream': 'stderr',
+\   'executable_callback': 'ale_linters#cuda#nvcc#GetExecutable',
+\   'command_callback': 'ale_linters#cuda#nvcc#GetCommand',
+\   'callback': 'ale_linters#cuda#nvcc#HandleNVCCFormat',
+\   'lint_file': 1,
+\})

ale_linters/d/dmd.vim

@@ -60,7 +60,7 @@ function! ale_linters#d#dmd#Handle(buffer, lines) abort
         call add(l:output, {
         \   'lnum': l:match[1],
         \   'col': l:match[2],
-        \   'type': l:match[3] ==# 'Warning' ? 'W' : 'E',
+        \   'type': l:match[3] is# 'Warning' ? 'W' : 'E',
         \   'text': l:match[4],
         \})
     endfor

ale_linters/dart/dartanalyzer.vim

@@ -0,0 +1,40 @@
+" Author: w0rp <devw0rp@gmail.com>
+" Description: Check Dart files with dartanalyzer
+
+call ale#Set('dart_dartanalyzer_executable', 'dartanalyzer')
+
+function! ale_linters#dart#dartanalyzer#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'dart_dartanalyzer_executable')
+endfunction
+
+function! ale_linters#dart#dartanalyzer#GetCommand(buffer) abort
+    let l:executable = ale_linters#dart#dartanalyzer#GetExecutable(a:buffer)
+    let l:path = ale#path#FindNearestFile(a:buffer, '.packages')
+
+    return ale#Escape(l:executable)
+    \   . (!empty(l:path) ? ' --packages ' . ale#Escape(l:path) : '')
+    \   . ' %t'
+endfunction
+
+function! ale_linters#dart#dartanalyzer#Handle(buffer, lines) abort
+    let l:pattern = '\v^  ([a-z]+) . (.+) at (.+):(\d+):(\d+) . (.+)$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        call add(l:output, {
+        \   'type': l:match[1] is# 'error' ? 'E' : 'W',
+        \   'text': l:match[6] . ': ' . l:match[2],
+        \   'lnum': str2nr(l:match[4]),
+        \   'col': str2nr(l:match[5]),
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('dart', {
+\   'name': 'dartanalyzer',
+\   'executable_callback': 'ale_linters#dart#dartanalyzer#GetExecutable',
+\   'command_callback': 'ale_linters#dart#dartanalyzer#GetCommand',
+\   'callback': 'ale_linters#dart#dartanalyzer#Handle',
+\})

ale_linters/dockerfile/hadolint.vim

@@ -1,5 +1,9 @@
 " Author: hauleth - https://github.com/hauleth
 
+" always, yes, never
+call ale#Set('dockerfile_hadolint_use_docker', 'never')
+call ale#Set('dockerfile_hadolint_docker_image', 'lukasmartinelli/hadolint')
+
 function! ale_linters#dockerfile#hadolint#Handle(buffer, lines) abort
     " Matches patterns line the following:
     "
@@ -10,7 +14,7 @@ function! ale_linters#dockerfile#hadolint#Handle(buffer, lines) abort
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
         let l:lnum = 0
 
-        if l:match[1] !=# ''
+        if l:match[1] isnot# ''
             let l:lnum = l:match[1] + 0
         endif
 
@@ -29,9 +33,45 @@ function! ale_linters#dockerfile#hadolint#Handle(buffer, lines) abort
     return l:output
 endfunction
 
+" This is a little different than the typical 'executable' callback.  We want
+" to afford the user the chance to say always use docker, never use docker,
+" and use docker if the hadolint executable is not present on the system.
+"
+" In the case of neither docker nor hadolint executables being present, it
+" really doesn't matter which we return -- either will have the effect of
+" 'nope, can't use this linter!'.
+
+function! ale_linters#dockerfile#hadolint#GetExecutable(buffer) abort
+    let l:use_docker = ale#Var(a:buffer, 'dockerfile_hadolint_use_docker')
+
+    " check for mandatory directives
+    if l:use_docker is# 'never'
+        return 'hadolint'
+    elseif l:use_docker is# 'always'
+        return 'docker'
+    endif
+
+    " if we reach here, we want to use 'hadolint' if present...
+    if executable('hadolint')
+        return 'hadolint'
+    endif
+
+    "... and 'docker' as a fallback.
+    return 'docker'
+endfunction
+
+function! ale_linters#dockerfile#hadolint#GetCommand(buffer) abort
+    let l:command = ale_linters#dockerfile#hadolint#GetExecutable(a:buffer)
+    if l:command is# 'docker'
+        return 'docker run --rm -i ' . ale#Var(a:buffer, 'dockerfile_hadolint_docker_image')
+    endif
+    return 'hadolint -'
+endfunction
+
+
 call ale#linter#Define('dockerfile', {
 \   'name': 'hadolint',
-\   'executable': 'hadolint',
+\   'executable_callback': 'ale_linters#dockerfile#hadolint#GetExecutable',
-\   'command': 'hadolint -',
+\   'command_callback': 'ale_linters#dockerfile#hadolint#GetCommand',
 \   'callback': 'ale_linters#dockerfile#hadolint#Handle',
 \})

ale_linters/elixir/credo.vim

@@ -11,9 +11,9 @@ function! ale_linters#elixir#credo#Handle(buffer, lines) abort
         let l:type = l:match[3]
         let l:text = l:match[4]
 
-        if l:type ==# 'C'
+        if l:type is# 'C'
             let l:type = 'E'
-        elseif l:type ==# 'R'
+        elseif l:type is# 'R'
             let l:type = 'W'
         endif
 

ale_linters/elixir/dogma.vim

@@ -11,9 +11,9 @@ function! ale_linters#elixir#dogma#Handle(buffer, lines) abort
         let l:type = l:match[3]
         let l:text = l:match[4]
 
-        if l:type ==# 'C'
+        if l:type is# 'C'
             let l:type = 'E'
-        elseif l:type ==# 'R'
+        elseif l:type is# 'R'
             let l:type = 'W'
         endif
 

ale_linters/elm/make.vim

@@ -1,35 +1,46 @@
-" Author: buffalocoder - https://github.com/buffalocoder
+" Author: buffalocoder - https://github.com/buffalocoder, soywod - https://github.com/soywod
 " 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)
+
+function! ale_linters#elm#make#GetExecutable(buffer) abort
+    return ale#node#FindExecutable(a:buffer, 'elm_make', [
+    \   'node_modules/.bin/elm-make',
+    \])
+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] ==# '['
+        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] ==? l:temp_dir
+                    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] ==# l:temp_dir
+                    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,
-                    \    'type': (l:error.type ==? 'error') ? 'E' : 'W',
+                    \    '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
-        elseif l:line !=# 'Successfully generated /dev/null'
+        elseif l:line isnot# 'Successfully generated /dev/null'
             call add(l:unparsed_lines, l:line)
         endif
     endfor
@@ -50,6 +61,7 @@ endfunction
 " 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_exe = ale_linters#elm#make#GetExecutable(a:buffer)
     if empty(l:elm_package)
         let l:dir_set_cmd = ''
     else
@@ -59,16 +71,18 @@ function! ale_linters#elm#make#GetCommand(buffer) abort
 
     " The elm-make 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.
+    " 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
-    let l:elm_cmd = 'elm-make --report=json --output='.ale#Escape('/dev/null')
+    let l:elm_cmd = ale#Escape(l:elm_exe)
+    \   . ' --report=json'
+    \   . ' --output=/dev/null'
 
     return l:dir_set_cmd . ' ' . l:elm_cmd . ' %t'
 endfunction
 
 call ale#linter#Define('elm', {
 \    'name': 'make',
-\    'executable': 'elm-make',
+\    'executable_callback': 'ale_linters#elm#make#GetExecutable',
 \    'output_stream': 'both',
 \    'command_callback': 'ale_linters#elm#make#GetCommand',
 \    'callback': 'ale_linters#elm#make#Handle'

ale_linters/erlang/erlc.vim

@@ -17,7 +17,7 @@ function! ale_linters#erlang#erlc#Handle(buffer, lines) abort
     " error.erl:4: variable 'B' is unbound
     " error.erl:3: Warning: function main/0 is unused
     " error.erl:4: Warning: variable 'A' is unused
-    let l:pattern = '\v^([^:]+):(\d+): (Warning: )?(.+)$'
+    let l:pattern = '\v^([a-zA-Z]?:?[^:]+):(\d+): (Warning: )?(.+)$'
 
     " parse_transforms are a special case. The error message does not indicate a location:
     " error.erl: undefined parse transform 'some_parse_transform'
@@ -27,7 +27,7 @@ function! ale_linters#erlang#erlc#Handle(buffer, lines) abort
     let l:pattern_no_module_definition = '\v(no module definition)$'
     let l:pattern_unused = '\v(.* is unused)$'
 
-    let l:is_hrl = fnamemodify(bufname(a:buffer), ':e') ==# 'hrl'
+    let l:is_hrl = fnamemodify(bufname(a:buffer), ':e') is# 'hrl'
 
     for l:line in a:lines
         let l:match = matchlist(l:line, l:pattern)

ale_linters/erlang/syntaxerl.vim

@@ -0,0 +1,53 @@
+" Author: Dmitri Vereshchagin <dmitri.vereshchagin@gmail.com>
+" Description: SyntaxErl linter for Erlang files
+
+call ale#Set('erlang_syntaxerl_executable', 'syntaxerl')
+
+
+function! ale_linters#erlang#syntaxerl#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'erlang_syntaxerl_executable')
+endfunction
+
+
+function! ale_linters#erlang#syntaxerl#FeatureCheck(buffer) abort
+    return s:GetEscapedExecutable(a:buffer) . ' -h'
+endfunction
+
+
+function! ale_linters#erlang#syntaxerl#GetCommand(buffer, output) abort
+    let l:use_b_option = match(a:output, '\C\V-b, --base\>') > -1
+
+    return s:GetEscapedExecutable(a:buffer) . (l:use_b_option ? ' -b %s %t' : ' %t')
+endfunction
+
+
+function! ale_linters#erlang#syntaxerl#Handle(buffer, lines) abort
+    let l:pattern = '\v\C:(\d+):( warning:)? (.+)'
+    let l:loclist = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        call add(l:loclist, {
+        \   'lnum': l:match[1] + 0,
+        \   'text': l:match[3],
+        \   'type': empty(l:match[2]) ? 'E' : 'W',
+        \})
+    endfor
+
+    return l:loclist
+endfunction
+
+
+function! s:GetEscapedExecutable(buffer) abort
+    return ale#Escape(ale_linters#erlang#syntaxerl#GetExecutable(a:buffer))
+endfunction
+
+
+call ale#linter#Define('erlang', {
+\   'name': 'syntaxerl',
+\   'executable_callback': 'ale_linters#erlang#syntaxerl#GetExecutable',
+\   'command_chain': [
+\       {'callback': 'ale_linters#erlang#syntaxerl#FeatureCheck'},
+\       {'callback': 'ale_linters#erlang#syntaxerl#GetCommand'},
+\   ],
+\   'callback': 'ale_linters#erlang#syntaxerl#Handle',
+\})

ale_linters/eruby/erubis.vim

@@ -0,0 +1,11 @@
+" Author: Jake Zimmerman <jake@zimmerman.io>
+" Description: eruby checker using `erubis`, instead of `erb`
+
+call ale#linter#Define('eruby', {
+\   'name': 'erubis',
+\   'executable': 'erubis',
+\   'output_stream': 'stderr',
+\   'command': 'erubis -x %t | ruby -c',
+\   'callback': 'ale#handlers#ruby#HandleSyntaxErrors',
+\})
+

ale_linters/fortran/gcc.vim

@@ -44,7 +44,7 @@ function! ale_linters#fortran#gcc#Handle(buffer, lines) abort
 
             " Now we have the text, we can set it and add the error.
             let l:last_loclist_obj.text = l:match[2]
-            let l:last_loclist_obj.type = l:match[1] ==# 'Warning' ? 'W' : 'E'
+            let l:last_loclist_obj.type = l:match[1] is# 'Warning' ? 'W' : 'E'
             call add(l:output, l:last_loclist_obj)
         else
             let l:last_loclist_obj = {

ale_linters/glsl/glslang.vim

@@ -0,0 +1,46 @@
+" Author: Sven-Hendrik Haase <svenstaro@gmail.com>
+" Description: glslang-based linter for glsl files
+"
+" TODO: Once https://github.com/KhronosGroup/glslang/pull/1047 is accepted,
+" we can use stdin.
+
+let g:ale_glsl_glslang_executable =
+\ get(g:, 'ale_glsl_glslang_executable', 'glslangValidator')
+
+let g:ale_glsl_glslang_options = get(g:, 'ale_glsl_glslang_options', '')
+
+function! ale_linters#glsl#glslang#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'glsl_glslang_executable')
+endfunction
+
+function! ale_linters#glsl#glslang#GetCommand(buffer) abort
+    return ale_linters#glsl#glslang#GetExecutable(a:buffer)
+    \   . ' ' . ale#Var(a:buffer, 'glsl_glslang_options')
+    \   . ' ' . '-C %t'
+endfunction
+
+function! ale_linters#glsl#glslang#Handle(buffer, lines) abort
+    " Matches patterns like the following:
+    "
+    " ERROR: 0:5: 'foo' : undeclared identifier
+    let l:pattern = '^\(.\+\): \(\d\+\):\(\d\+\): \(.\+\)'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        call add(l:output, {
+        \   'lnum': str2nr(l:match[3]),
+        \   'col': str2nr(l:match[2]),
+        \   'text': l:match[4],
+        \   'type': l:match[1] is# 'ERROR' ? 'E' : 'W',
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('glsl', {
+\   'name': 'glslang',
+\   'executable_callback': 'ale_linters#glsl#glslang#GetExecutable',
+\   'command_callback': 'ale_linters#glsl#glslang#GetCommand',
+\   'callback': 'ale_linters#glsl#glslang#Handle',
+\})

ale_linters/go/gometalinter.vim

@@ -1,16 +1,22 @@
 " Author: Ben Reedy <https://github.com/breed808>
 " Description: Adds support for the gometalinter suite for Go files
 
-if !exists('g:ale_go_gometalinter_options')
+call ale#Set('go_gometalinter_options', '')
-    let g:ale_go_gometalinter_options = ''
+call ale#Set('go_gometalinter_executable', 'gometalinter')
-endif
+
+function! ale_linters#go#gometalinter#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'go_gometalinter_executable')
+endfunction
 
 function! ale_linters#go#gometalinter#GetCommand(buffer) abort
-    let l:filename = expand('#' . a:buffer . ':p')
+    let l:executable = ale_linters#go#gometalinter#GetExecutable(a:buffer)
+    let l:filename = expand('#' . a:buffer)
+    let l:options = ale#Var(a:buffer, 'go_gometalinter_options')
 
-    return 'gometalinter --include=''^' . l:filename . '.*$'' '
+    return ale#Escape(l:executable)
-    \   . ale#Var(a:buffer, 'go_gometalinter_options')
+    \   . ' --include=' . ale#Escape('^' . ale#util#EscapePCRE(l:filename))
-    \   . ' ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h'))
+    \   . (!empty(l:options) ? ' ' . l:options : '')
+    \   . ' ' . ale#Escape(fnamemodify(l:filename, ':h'))
 endfunction
 
 function! ale_linters#go#gometalinter#GetMatches(lines) abort
@@ -26,7 +32,7 @@ function! ale_linters#go#gometalinter#Handler(buffer, lines) abort
         call add(l:output, {
         \   'lnum': l:match[2] + 0,
         \   'col': l:match[3] + 0,
-        \   'type': tolower(l:match[4]) ==# 'warning' ? 'W' : 'E',
+        \   'type': tolower(l:match[4]) is# 'warning' ? 'W' : 'E',
         \   'text': l:match[5],
         \})
     endfor
@@ -36,7 +42,7 @@ endfunction
 
 call ale#linter#Define('go', {
 \   'name': 'gometalinter',
-\   'executable': 'gometalinter',
+\   'executable_callback': 'ale_linters#go#gometalinter#GetExecutable',
 \   'command_callback': 'ale_linters#go#gometalinter#GetCommand',
 \   'callback': 'ale_linters#go#gometalinter#Handler',
 \   'lint_file': 1,

ale_linters/go/gosimple.vim

@@ -4,6 +4,8 @@
 call ale#linter#Define('go', {
 \   'name': 'gosimple',
 \   'executable': 'gosimple',
-\   'command': 'gosimple %t',
+\   'command': 'gosimple %s',
 \   'callback': 'ale#handlers#unix#HandleAsWarning',
+\   'output_stream': 'both',
+\   'lint_file': 1,
 \})

ale_linters/go/staticcheck.vim

@@ -4,6 +4,8 @@
 call ale#linter#Define('go', {
 \   'name': 'staticcheck',
 \   'executable': 'staticcheck',
-\   'command': 'staticcheck %t',
+\   'command': 'staticcheck %s',
 \   'callback': 'ale#handlers#unix#HandleAsWarning',
+\   'output_stream': 'both',
+\   'lint_file': 1,
 \})

ale_linters/graphql/gqlint.vim

@@ -0,0 +1,9 @@
+" Author: Michiel Westerbeek <happylinks@gmail.com>
+" Description: Linter for GraphQL Schemas
+
+call ale#linter#Define('graphql', {
+\   'name': 'gqlint',
+\   'executable': 'gqlint',
+\   'command': 'gqlint --reporter=simple %t',
+\   'callback': 'ale#handlers#unix#HandleAsWarning',
+\})

ale_linters/handlebars/embertemplatelint.vim

@@ -16,16 +16,10 @@ function! ale_linters#handlebars#embertemplatelint#GetCommand(buffer) abort
 endfunction
 
 function! ale_linters#handlebars#embertemplatelint#Handle(buffer, lines) abort
-    if len(a:lines) == 0
-      return []
-    endif
-
     let l:output = []
+    let l:json = ale#util#FuzzyJSONDecode(a:lines, {})
 
-    let l:input_json = json_decode(join(a:lines, ''))
+    for l:error in get(values(l:json), 0, [])
-    let l:file_errors = values(l:input_json)[0]
-
-    for l:error in l:file_errors
         if has_key(l:error, 'fatal')
             call add(l:output, {
             \   'bufnr': a:buffer,

ale_linters/haskell/ghc-mod.vim

@@ -4,13 +4,13 @@
 call ale#linter#Define('haskell', {
 \   'name': 'ghc-mod',
 \   'executable': 'ghc-mod',
-\   'command': 'ghc-mod check %t',
+\   'command': 'ghc-mod --map-file %s=%t check %s',
 \   'callback': 'ale#handlers#haskell#HandleGHCFormat',
 \})
 
 call ale#linter#Define('haskell', {
 \   'name': 'stack-ghc-mod',
 \   'executable': 'stack',
-\   'command': 'stack exec ghc-mod check %t',
+\   'command': 'stack exec ghc-mod -- --map-file %s=%t check %s',
 \   'callback': 'ale#handlers#haskell#HandleGHCFormat',
 \})

ale_linters/haskell/ghc.vim

@@ -8,11 +8,3 @@ call ale#linter#Define('haskell', {
 \   'command': 'ghc -fno-code -v0 %t',
 \   'callback': 'ale#handlers#haskell#HandleGHCFormat',
 \})
-
-call ale#linter#Define('haskell', {
-\   'name': 'stack-ghc',
-\   'output_stream': 'stderr',
-\   'executable': 'stack',
-\   'command': 'stack ghc -- -fno-code -v0 %t',
-\   'callback': 'ale#handlers#haskell#HandleGHCFormat',
-\})

ale_linters/haskell/hdevtools.vim

@@ -1,9 +1,22 @@
-" Author: rob-b
+" Author: rob-b, Takano Akio <tak@anoak.io>
 " Description: hdevtools for Haskell files
 
+call ale#Set('haskell_hdevtools_executable', 'hdevtools')
+call ale#Set('haskell_hdevtools_options', '-g -Wall')
+
+function! ale_linters#haskell#hdevtools#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'haskell_hdevtools_executable')
+endfunction
+
+function! ale_linters#haskell#hdevtools#GetCommand(buffer) abort
+    return ale#Escape(ale_linters#haskell#hdevtools#GetExecutable(a:buffer))
+        \ . ' check ' . ale#Var(a:buffer, 'haskell_hdevtools_options')
+        \ . ' -p %s %t'
+endfunction
+
 call ale#linter#Define('haskell', {
 \   'name': 'hdevtools',
-\   'executable': 'hdevtools',
+\   'executable_callback': 'ale_linters#haskell#hdevtools#GetExecutable',
-\   'command': 'hdevtools check -g -Wall -p %s %t',
+\   'command_callback': 'ale_linters#haskell#hdevtools#GetCommand',
 \   'callback': 'ale#handlers#haskell#HandleGHCFormat',
 \})

ale_linters/haskell/hlint.vim

@@ -2,17 +2,24 @@
 " Description: hlint for Haskell files
 
 function! ale_linters#haskell#hlint#Handle(buffer, lines) abort
-    let l:errors = json_decode(join(a:lines, ''))
-
     let l:output = []
 
-    for l:error in l:errors
+    for l:error in ale#util#FuzzyJSONDecode(a:lines, [])
+        if l:error.severity is# 'Error'
+            let l:type = 'E'
+        elseif l:error.severity is# 'Suggestion'
+            let l:type = 'I'
+        else
+            let l:type = 'W'
+        endif
+
         call add(l:output, {
-        \   'bufnr': a:buffer,
+        \   'lnum': str2nr(l:error.startLine),
-        \   'lnum': l:error.startLine + 0,
+        \   'col': str2nr(l:error.startColumn),
-        \   'col': l:error.startColumn + 0,
+        \   'end_lnum': str2nr(l:error.endLine),
+        \   'end_col': str2nr(l:error.endColumn),
         \   'text': l:error.severity . ': ' . l:error.hint . '. Found: ' . l:error.from . ' Why not: ' . l:error.to,
-        \   'type': l:error.severity ==# 'Error' ? 'E' : 'W',
+        \   'type': l:type,
         \})
     endfor
 

ale_linters/haskell/stack_build.vim

@@ -0,0 +1,22 @@
+" Author: Jake Zimmerman <jake@zimmerman.io>
+" Description: Like stack-ghc, but for entire projects
+"
+" Note: Ideally, this would *only* typecheck. Right now, it also does codegen.
+" See <https://github.com/commercialhaskell/stack/issues/977>.
+
+call ale#Set('haskell_stack_build_options', '--fast')
+
+function! ale_linters#haskell#stack_build#GetCommand(buffer) abort
+    let l:flags = ale#Var(a:buffer, 'haskell_stack_build_options')
+
+    return 'stack build ' . l:flags
+endfunction
+
+call ale#linter#Define('haskell', {
+\   'name': 'stack-build',
+\   'output_stream': 'stderr',
+\   'executable': 'stack',
+\   'command_callback': 'ale_linters#haskell#stack_build#GetCommand',
+\   'lint_file': 1,
+\   'callback': 'ale#handlers#haskell#HandleGHCFormat',
+\})

ale_linters/haskell/stack_ghc.vim

@@ -0,0 +1,10 @@
+" Author: w0rp <devw0rp@gmail.com>
+" Description: ghc for Haskell files, using Stack
+
+call ale#linter#Define('haskell', {
+\   'name': 'stack-ghc',
+\   'output_stream': 'stderr',
+\   'executable': 'stack',
+\   'command': 'stack ghc -- -fno-code -v0 %t',
+\   'callback': 'ale#handlers#haskell#HandleGHCFormat',
+\})

ale_linters/html/tidy.vim

@@ -46,7 +46,7 @@ function! ale_linters#html#tidy#Handle(buffer, lines) abort
     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] ==# 'Error' ? 'E' : 'W'
+        let l:type = l:match[3] is# 'Error' ? 'E' : 'W'
         let l:text = l:match[4]
 
         call add(l:output, {

ale_linters/idris/idris.vim

@@ -0,0 +1,87 @@
+" Author: Scott Bonds <scott@ggr.com>
+" Description: default Idris compiler
+
+call ale#Set('idris_idris_executable', 'idris')
+call ale#Set('idris_idris_options', '--total --warnpartial --warnreach --warnipkg')
+
+function! ale_linters#idris#idris#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'idris_idris_executable')
+endfunction
+
+function! ale_linters#idris#idris#GetCommand(buffer) abort
+    let l:options = ale#Var(a:buffer, 'idris_idris_options')
+
+    return ale#Escape(ale_linters#idris#idris#GetExecutable(a:buffer))
+    \   . (!empty(l:options) ? ' ' . l:options : '')
+    \   . ' --check %s'
+endfunction
+
+function! ale_linters#idris#idris#Handle(buffer, lines) abort
+    " This was copied almost verbatim from ale#handlers#haskell#HandleGHCFormat
+
+    " Look for lines like the following:
+    " foo.idr:2:6:When checking right hand side of main with expected type
+    " bar.idr:11:11-13:
+    let l:pattern = '\v^([a-zA-Z]?:?[^:]+):(\d+):(\d+)(-\d+)?:(.*)?$'
+    let l:output = []
+
+    let l:corrected_lines = []
+
+    for l:line in a:lines
+        if len(matchlist(l:line, l:pattern)) > 0
+            call add(l:corrected_lines, l:line)
+        elseif len(l:corrected_lines) > 0
+            if l:line is# ''
+                let l:corrected_lines[-1] .= ' ' " turn a blank line into a space
+            else
+                let l:corrected_lines[-1] .= l:line
+            endif
+            let l:corrected_lines[-1] = substitute(l:corrected_lines[-1], '\s\+', ' ', 'g')
+        endif
+    endfor
+
+    for l:line in l:corrected_lines
+        let l:match = matchlist(l:line, l:pattern)
+
+        if len(l:match) == 0
+            continue
+        endif
+
+        if !ale#path#IsBufferPath(a:buffer, l:match[1])
+            continue
+        endif
+
+        let l:errors = matchlist(l:match[5], '\v([wW]arning|[eE]rror) - ?(.*)')
+
+        if len(l:errors) > 0
+          let l:ghc_type = l:errors[1]
+          let l:text = l:errors[2]
+        else
+          let l:ghc_type = ''
+          let l:text = l:match[5][:0] is# ' ' ? l:match[5][1:] : l:match[5]
+        endif
+
+        if l:ghc_type is? 'Warning'
+            let l:type = 'W'
+        else
+            let l:type = 'E'
+        endif
+
+        call add(l:output, {
+        \   'lnum': l:match[2] + 0,
+        \   'col': l:match[3] + 0,
+        \   'text': l:text,
+        \   'type': l:type,
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('idris', {
+\   'name': 'idris',
+\   'executable_callback': 'ale_linters#idris#idris#GetExecutable',
+\   'command_callback': 'ale_linters#idris#idris#GetCommand',
+\   'callback': 'ale_linters#idris#idris#Handle',
+\})
+

ale_linters/java/javac.vim

@@ -14,6 +14,11 @@ function! ale_linters#java#javac#GetImportPaths(buffer) abort
         \ . 'mvn dependency:build-classpath'
     endif
 
+    let l:classpath_command = ale#gradle#BuildClasspathCommand(a:buffer)
+    if !empty(l:classpath_command)
+        return l:classpath_command
+    endif
+
     return ''
 endfunction
 
@@ -44,7 +49,10 @@ 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)
 
-    return 'javac -Xlint'
+    " 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'
     \ . ' ' . l:cp_option
     \ . ' ' . l:sp_option
     \ . ' -d ' . ale#Escape(l:class_file_directory)
@@ -58,24 +66,26 @@ function! ale_linters#java#javac#Handle(buffer, lines) abort
     " Main.java:13: warning: [deprecation] donaught() in Testclass has been deprecated
     " Main.java:16: error: ';' expected
 
-    let l:pattern = '\v^.*:(\d+): (.+):(.+)$'
+    let l:directory = expand('#' . a:buffer . ':p:h')
+    let l:pattern = '\v^(.*):(\d+): (.+):(.+)$'
     let l:col_pattern = '\v^(\s*\^)$'
     let l:symbol_pattern = '\v^ +symbol: *(class|method) +([^ ]+)'
     let l:output = []
 
     for l:match in ale#util#GetMatches(a:lines, [l:pattern, l:col_pattern, l:symbol_pattern])
         if empty(l:match[2]) && empty(l:match[3])
-                let l:output[-1].col = len(l:match[1])
+            let l:output[-1].col = len(l:match[1])
         elseif empty(l:match[3])
             " Add symbols to 'cannot find symbol' errors.
-            if l:output[-1].text ==# 'error: cannot find symbol'
+            if l:output[-1].text is# 'error: cannot find symbol'
                 let l:output[-1].text .= ': ' . l:match[2]
             endif
         else
             call add(l:output, {
-            \   'lnum': l:match[1] + 0,
+            \   'filename': ale#path#GetAbsPath(l:directory, l:match[1]),
-            \   'text': l:match[2] . ':' . l:match[3],
+            \   'lnum': l:match[2] + 0,
-            \   'type': l:match[2] ==# 'error' ? 'E' : 'W',
+            \   'text': l:match[3] . ':' . l:match[4],
+            \   'type': l:match[3] is# 'error' ? 'E' : 'W',
             \})
         endif
     endfor

ale_linters/javascript/flow.vim

@@ -10,7 +10,12 @@ function! ale_linters#javascript#flow#GetExecutable(buffer) abort
     \])
 endfunction
 
-function! ale_linters#javascript#flow#GetCommand(buffer) abort
+function! ale_linters#javascript#flow#VersionCheck(buffer) abort
+    return ale#Escape(ale_linters#javascript#flow#GetExecutable(a:buffer))
+    \   . ' --version'
+endfunction
+
+function! ale_linters#javascript#flow#GetCommand(buffer, version_lines) abort
     let l:flow_config = ale#path#FindNearestFile(a:buffer, '.flowconfig')
 
     if empty(l:flow_config)
@@ -18,14 +23,43 @@ function! ale_linters#javascript#flow#GetCommand(buffer) abort
         return ''
     endif
 
+    let l:use_respect_pragma = 1
+
+    " If we can parse the version number, then only use --respect-pragma
+    " if the version is >= 0.36.0, which added the argument.
+    for l:match in ale#util#GetMatches(a:version_lines, '\v\d+\.\d+\.\d+$')
+        let l:use_respect_pragma = ale#semver#GreaterOrEqual(
+        \   ale#semver#Parse(l:match[0]),
+        \   [0, 36, 0]
+        \)
+    endfor
+
     return ale#Escape(ale_linters#javascript#flow#GetExecutable(a:buffer))
-    \   . ' check-contents --respect-pragma --json --from ale %s'
+    \   . ' check-contents'
+    \   . (l:use_respect_pragma ? ' --respect-pragma': '')
+    \   . ' --json --from ale %s'
+endfunction
+
+" Filter lines of flow output until we find the first line where the JSON
+" output starts.
+function! s:GetJSONLines(lines) abort
+    let l:start_index = 0
+
+    for l:line in a:lines
+        if l:line[:0] is# '{'
+            break
+        endif
+
+        let l:start_index += 1
+    endfor
+
+    return a:lines[l:start_index :]
 endfunction
 
 function! ale_linters#javascript#flow#Handle(buffer, lines) abort
-    let l:str = join(a:lines, '')
+    let l:str = join(s:GetJSONLines(a:lines), '')
 
-    if l:str ==# ''
+    if empty(l:str)
         return []
     endif
 
@@ -43,13 +77,13 @@ function! ale_linters#javascript#flow#Handle(buffer, lines) abort
             " In certain cases, `l:message.loc.source` points to a different path
             " than the buffer one, thus we skip this loc information too.
             if has_key(l:message, 'loc')
-            \&& l:line ==# 0
+            \&& l:line is# 0
             \&& ale#path#IsBufferPath(a:buffer, l:message.loc.source)
                 let l:line = l:message.loc.start.line + 0
                 let l:col = l:message.loc.start.column + 0
             endif
 
-            if l:text ==# ''
+            if l:text is# ''
                 let l:text = l:message.descr . ':'
             else
                 let l:text = l:text . ' ' . l:message.descr
@@ -64,7 +98,7 @@ function! ale_linters#javascript#flow#Handle(buffer, lines) abort
         \   'lnum': l:line,
         \   'col': l:col,
         \   'text': l:text,
-        \   'type': l:error.level ==# 'error' ? 'E' : 'W',
+        \   'type': l:error.level is# 'error' ? 'E' : 'W',
         \})
     endfor
 
@@ -74,6 +108,10 @@ endfunction
 call ale#linter#Define('javascript', {
 \   'name': 'flow',
 \   'executable_callback': 'ale_linters#javascript#flow#GetExecutable',
-\   'command_callback': 'ale_linters#javascript#flow#GetCommand',
+\   'command_chain': [
+\       {'callback': 'ale_linters#javascript#flow#VersionCheck'},
+\       {'callback': 'ale_linters#javascript#flow#GetCommand'},
+\   ],
 \   'callback': 'ale_linters#javascript#flow#Handle',
+\   'add_newline': !has('win32'),
 \})

ale_linters/javascript/jscs.vim

@@ -1,9 +1,63 @@
 " Author: Chris Kyrouac - https://github.com/fijshion
 " Description: jscs for JavaScript files
 
+call ale#Set('javascript_jscs_executable', 'jscs')
+call ale#Set('javascript_jscs_use_global', 0)
+
+function! ale_linters#javascript#jscs#GetExecutable(buffer) abort
+    return ale#node#FindExecutable(a:buffer, 'javascript_jscs', [
+    \   'node_modules/.bin/jscs',
+    \])
+endfunction
+
+function! ale_linters#javascript#jscs#GetCommand(buffer) abort
+    " Search for a local JShint config locaation, and default to a global one.
+    let l:jscs_config = ale#path#ResolveLocalPath(
+    \   a:buffer,
+    \   '.jscsrc',
+    \   get(g:, 'ale_jscs_config_loc', '')
+    \)
+
+    let l:command = ale#Escape(ale_linters#javascript#jscs#GetExecutable(a:buffer))
+    let l:command .= ' --reporter inline --no-colors'
+
+    if !empty(l:jscs_config)
+        let l:command .= ' --config ' . ale#Escape(l:jscs_config)
+    endif
+
+    let l:command .= ' -'
+
+    return l:command
+endfunction
+
+function! ale_linters#javascript#jscs#Handle(buffer, lines) abort
+    " Matches patterns looking like the following
+    "
+    " foobar.js: line 2, col 1, Expected indentation of 1 characters
+    "
+    let l:pattern = '^.*:\s\+line \(\d\+\),\s\+col\s\+\(\d\+\),\s\+\(.*\)$'
+    let l:output = []
+    let l:m = ale#util#GetMatches(a:lines, [l:pattern])
+
+    for l:match in l:m
+        let l:text = l:match[3]
+
+        let l:obj = {
+        \   'lnum': l:match[1] + 0,
+        \   'col': l:match[2] + 0,
+        \   'text': l:match[3]
+        \}
+
+        call add(l:output, l:obj)
+    endfor
+
+    return l:output
+endfunction
+
 call ale#linter#Define('javascript', {
 \   'name': 'jscs',
-\   'executable': 'jscs',
+\   'executable_callback': 'ale_linters#javascript#jscs#GetExecutable',
-\   'command': 'jscs -r unix -n -',
+\   'command_callback': 'ale_linters#javascript#jscs#GetCommand',
-\   'callback': 'ale#handlers#unix#HandleAsError',
+\   'callback': 'ale_linters#javascript#jscs#Handle',
 \})
+

ale_linters/javascript/standard.vim

@@ -7,13 +7,17 @@ call ale#Set('javascript_standard_options', '')
 
 function! ale_linters#javascript#standard#GetExecutable(buffer) abort
     return ale#node#FindExecutable(a:buffer, 'javascript_standard', [
+    \   'node_modules/standard/bin/cmd.js',
     \   'node_modules/.bin/standard',
     \])
 endfunction
 
 function! ale_linters#javascript#standard#GetCommand(buffer) abort
-    return ale#Escape(ale_linters#javascript#standard#GetExecutable(a:buffer))
+    let l:executable = ale_linters#javascript#standard#GetExecutable(a:buffer)
-    \   . ' ' . ale#Var(a:buffer, 'javascript_standard_options')
+    let l:options = ale#Var(a:buffer, 'javascript_standard_options')
+
+    return ale#node#Executable(a:buffer, l:executable)
+    \   . (!empty(l:options) ? ' ' . l:options : '')
     \   . ' --stdin %s'
 endfunction
 

ale_linters/kotlin/kotlinc.vim

@@ -12,17 +12,21 @@ let g:ale_kotlin_kotlinc_module_filename = get(g:, 'ale_kotlin_kotlinc_module_fi
 let s:classpath_sep = has('unix') ? ':' : ';'
 
 function! ale_linters#kotlin#kotlinc#GetImportPaths(buffer) abort
-    " exec maven only if classpath is not set
+    " exec maven/gradle only if classpath is not set
-    if ale#Var(a:buffer, 'kotlin_kotlinc_classpath') !=# ''
+    if ale#Var(a:buffer, 'kotlin_kotlinc_classpath') isnot# ''
         return ''
     else
         let l:pom_path = ale#path#FindNearestFile(a:buffer, 'pom.xml')
-
         if !empty(l:pom_path) && executable('mvn')
             return ale#path#CdString(fnamemodify(l:pom_path, ':h'))
                         \ . 'mvn dependency:build-classpath'
         endif
 
+        let l:classpath_command = ale#gradle#BuildClasspathCommand(a:buffer)
+        if !empty(l:classpath_command)
+            return l:classpath_command
+        endif
+
         return ''
     endif
 endfunction
@@ -66,19 +70,27 @@ function! ale_linters#kotlin#kotlinc#GetCommand(buffer, import_paths) abort
     endif
 
     " We only get here if not using module or the module file not readable
-    if ale#Var(a:buffer, 'kotlin_kotlinc_classpath') !=# ''
+    if ale#Var(a:buffer, 'kotlin_kotlinc_classpath') isnot# ''
         let l:kotlinc_opts .= ' -cp ' . ale#Var(a:buffer, 'kotlin_kotlinc_classpath')
     else
-        " get classpath from maven
+        " get classpath from maven/gradle
         let l:kotlinc_opts .= s:BuildClassPathOption(a:buffer, a:import_paths)
     endif
 
     let l:fname = ''
-    if ale#Var(a:buffer, 'kotlin_kotlinc_sourcepath') !=# ''
+    if ale#Var(a:buffer, 'kotlin_kotlinc_sourcepath') isnot# ''
         let l:fname .= expand(ale#Var(a:buffer, 'kotlin_kotlinc_sourcepath'), 1) . ' '
     else
         " Find the src directory for files in this project.
-        let l:src_dir = ale#path#FindNearestDirectory(a:buffer, 'src/main/java')
+
+        let l:project_root = ale#gradle#FindProjectRoot(a:buffer)
+        if !empty(l:project_root)
+            let l:src_dir = l:project_root
+        else
+            let l:src_dir = ale#path#FindNearestDirectory(a:buffer, 'src/main/java')
+            \   . ' ' . ale#path#FindNearestDirectory(a:buffer, 'src/main/kotlin')
+        endif
+
         let l:fname .= expand(l:src_dir, 1) . ' '
     endif
     let l:fname .= ale#Escape(expand('#' . a:buffer . ':p'))
@@ -109,10 +121,10 @@ function! ale_linters#kotlin#kotlinc#Handle(buffer, lines) abort
         let l:curbuf_abspath = expand('#' . a:buffer . ':p')
 
         " Skip if file is not loaded
-        if l:buf_abspath !=# l:curbuf_abspath
+        if l:buf_abspath isnot# l:curbuf_abspath
             continue
         endif
-        let l:type_marker_str = l:type ==# 'warning' ? 'W' : 'E'
+        let l:type_marker_str = l:type is# 'warning' ? 'W' : 'E'
 
         call add(l:output, {
         \   'lnum': l:line,
@@ -133,7 +145,7 @@ function! ale_linters#kotlin#kotlinc#Handle(buffer, lines) abort
         let l:type = l:match[1]
         let l:text = l:match[2]
 
-        let l:type_marker_str = l:type ==# 'warning' || l:type ==# 'info' ? 'W' : 'E'
+        let l:type_marker_str = l:type is# 'warning' || l:type is# 'info' ? 'W' : 'E'
 
         call add(l:output, {
         \   'lnum': 1,
@@ -155,3 +167,4 @@ call ale#linter#Define('kotlin', {
 \   'callback': 'ale_linters#kotlin#kotlinc#Handle',
 \   'lint_file': 1,
 \})
+

ale_linters/llvm/llc.vim

@@ -0,0 +1,35 @@
+" Author: rhysd <https://rhysd.github.io>
+" Description: Support for checking LLVM IR with llc
+
+call ale#Set('llvm_llc_executable', 'llc')
+
+function! ale_linters#llvm#llc#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'llvm_llc_executable')
+endfunction
+
+function! ale_linters#llvm#llc#GetCommand(buffer) abort
+    return ale#Escape(ale_linters#llvm#llc#GetExecutable(a:buffer))
+    \   . ' -filetype=null -o='
+    \   . ale#Escape(g:ale#util#nul_file)
+endfunction
+
+function! ale_linters#llvm#llc#HandleErrors(buffer, lines) abort
+    " Handle '{path}: {file}:{line}:{col}: error: {message}' format
+    let l:pattern = '\v^[a-zA-Z]?:?[^:]+: [^:]+:(\d+):(\d+): (.+)$'
+    let l:matches = ale#util#GetMatches(a:lines, l:pattern)
+
+    return map(l:matches, "{
+    \   'lnum': str2nr(v:val[1]),
+    \   'col': str2nr(v:val[2]),
+    \   'text': v:val[3],
+    \   'type': 'E',
+    \}")
+endfunction
+
+call ale#linter#Define('llvm', {
+\   'name': 'llc',
+\   'executable_callback': 'ale_linters#llvm#llc#GetExecutable',
+\   'output_stream': 'stderr',
+\   'command_callback': 'ale_linters#llvm#llc#GetCommand',
+\   'callback': 'ale_linters#llvm#llc#HandleErrors',
+\})

ale_linters/lua/luacheck.vim

@@ -22,14 +22,20 @@ function! ale_linters#lua#luacheck#Handle(buffer, lines) abort
     "
     " artal.lua:159:17: (W111) shadowing definition of loop variable 'i' on line 106
     " artal.lua:182:7: (W213) unused loop variable 'i'
-    let l:pattern = '^.*:\(\d\+\):\(\d\+\): (\([WE]\)\d\+) \(.\+\)$'
+    let l:pattern = '^.*:\(\d\+\):\(\d\+\): (\([WE]\)\(\d\+\)) \(.\+\)$'
     let l:output = []
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        if !ale#Var(a:buffer, 'warn_about_trailing_whitespace')
+        \   && l:match[3] is# 'W'
+        \   && index(range(611, 614), str2nr(l:match[4])) >= 0
+            continue
+        endif
+
         call add(l:output, {
         \   'lnum': l:match[1] + 0,
         \   'col': l:match[2] + 0,
-        \   'text': l:match[4],
+        \   'text': l:match[3] . l:match[4] . ': ' . l:match[5],
         \   'type': l:match[3],
         \})
     endfor

ale_linters/markdown/remark_lint.vim

@@ -0,0 +1,28 @@
+" Author rhysd https://rhysd.github.io/
+" Description: remark-lint for Markdown files
+
+function! ale_linters#markdown#remark_lint#Handle(buffer, lines) abort
+    " matches: '  1:4  warning  Incorrect list-item indent: add 1 space  list-item-indent  remark-lint'
+    let l:pattern = '^ \+\(\d\+\):\(\d\+\)  \(warning\|error\)  \(.\+\)$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        call add(l:output, {
+        \   'lnum': l:match[1] + 0,
+        \   'col': l:match[2] + 0,
+        \   'type': l:match[3] is# 'error' ? 'E' : 'W',
+        \   'text': l:match[4],
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('markdown', {
+\   'name': 'remark-lint',
+\   'executable': 'remark',
+\   'command': 'remark --no-stdout --no-color %s',
+\   'callback': 'ale_linters#markdown#remark_lint#Handle',
+\   'lint_file': 1,
+\   'output_stream': 'stderr',
+\})

ale_linters/matlab/mlint.vim

@@ -30,7 +30,7 @@ function! ale_linters#matlab#mlint#Handle(buffer, lines) abort
 
         " Suppress erroneous waring about filename
         " TODO: Enable this error when copying filename is supported
-        if l:code ==# 'FNDEF'
+        if l:code is# 'FNDEF'
             continue
         endif
 

ale_linters/nim/nimcheck.vim

@@ -12,7 +12,7 @@ function! ale_linters#nim#nimcheck#Handle(buffer, lines) abort
         "       module names.
 
         let l:temp_buffer_filename = fnamemodify(l:match[1], ':p:t')
-        if l:buffer_filename !=# '' && l:temp_buffer_filename !=# l:buffer_filename
+        if l:buffer_filename isnot# '' && l:temp_buffer_filename isnot# l:buffer_filename
             continue
         endif
 
@@ -26,7 +26,7 @@ function! ale_linters#nim#nimcheck#Handle(buffer, lines) abort
 
         if len(l:textmatch) > 0
             let l:errortype = l:textmatch[1]
-            if l:errortype ==# 'Error'
+            if l:errortype is# 'Error'
                 let l:type = 'E'
             endif
         endif

ale_linters/perl/perl.vim

@@ -34,7 +34,7 @@ function! ale_linters#perl#perl#Handle(buffer, lines) abort
 
         if ale#path#IsBufferPath(a:buffer, l:match[2])
         \ && (
-        \   l:text !=# 'BEGIN failed--compilation aborted'
+        \   l:text isnot# 'BEGIN failed--compilation aborted'
         \   || empty(l:output)
         \   || match(l:output[-1].text, s:begin_failed_skip_pattern) < 0
         \ )

ale_linters/perl/perlcritic.vim

@@ -1,17 +1,54 @@
-" Author: Vincent Lequertier <https://github.com/SkySymbol>
+" Author: Vincent Lequertier <https://github.com/SkySymbol>, Chris Weyl <cweyl@alumni.drew.edu>
 " Description: This file adds support for checking perl with perl critic
 
-if !exists('g:ale_perl_perlcritic_showrules')
+let g:ale_perl_perlcritic_executable =
-    let g:ale_perl_perlcritic_showrules = 0
+\   get(g:, 'ale_perl_perlcritic_executable', 'perlcritic')
-endif
+
+let g:ale_perl_perlcritic_profile =
+\   get(g:, 'ale_perl_perlcritic_profile', '.perlcriticrc')
+
+let g:ale_perl_perlcritic_options =
+\   get(g:, 'ale_perl_perlcritic_options', '')
+
+let g:ale_perl_perlcritic_showrules =
+\   get(g:, 'ale_perl_perlcritic_showrules', 0)
+
+function! ale_linters#perl#perlcritic#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'perl_perlcritic_executable')
+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
+
+    " otherwise, iterate upwards to find it
+    return ale#path#FindNearestFile(a:buffer, l:profile)
+endfunction
 
 function! ale_linters#perl#perlcritic#GetCommand(buffer) abort
     let l:critic_verbosity = '%l:%c %m\n'
-    if g:ale_perl_perlcritic_showrules
+    if ale#Var(a:buffer, 'perl_perlcritic_showrules')
         let l:critic_verbosity = '%l:%c %m [%p]\n'
     endif
 
-    return "perlcritic --verbose '". l:critic_verbosity . "' --nocolor"
+    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
 endfunction
 
 
@@ -32,8 +69,8 @@ endfunction
 
 call ale#linter#Define('perl', {
 \   'name': 'perlcritic',
-\   'executable': 'perlcritic',
 \   'output_stream': 'stdout',
+\   'executable_callback': 'ale_linters#perl#perlcritic#GetExecutable',
 \   'command_callback': 'ale_linters#perl#perlcritic#GetCommand',
 \   'callback': 'ale_linters#perl#perlcritic#Handle',
 \})

ale_linters/php/langserver.vim

@@ -0,0 +1,34 @@
+" Author: Eric Stern <eric@ericstern.com>
+" 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)
+
+function! ale_linters#php#langserver#GetExecutable(buffer) abort
+    return ale#node#FindExecutable(a:buffer, 'php_langserver', [
+    \   'vendor/bin/php-language-server.php',
+    \])
+endfunction
+
+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')
+
+    return !empty(l:git_path) ? fnamemodify(l:git_path, ':h:h') : ''
+endfunction
+
+call ale#linter#Define('php', {
+\   'name': 'langserver',
+\   'lsp': 'stdio',
+\   'executable_callback': 'ale_linters#php#langserver#GetExecutable',
+\   'command_callback': 'ale_linters#php#langserver#GetCommand',
+\   'language_callback': 'ale_linters#php#langserver#GetLanguage',
+\   'project_root_callback': 'ale_linters#php#langserver#GetProjectRoot',
+\})

ale_linters/php/php.vim

@@ -30,6 +30,6 @@ call ale#linter#Define('php', {
 \   'name': 'php',
 \   'executable': 'php',
 \   'output_stream': 'stdout',
-\   'command': 'php -l -d error_reporting=E_ALL -d display_errors=1 --',
+\   'command': 'php -l -d error_reporting=E_ALL -d display_errors=1 -d log_errors=0 --',
 \   'callback': 'ale_linters#php#php#Handle',
 \})

ale_linters/php/phpcs.vim

@@ -40,7 +40,7 @@ function! ale_linters#php#phpcs#Handle(buffer, lines) abort
         \   'lnum': l:match[1] + 0,
         \   'col': l:match[2] + 0,
         \   'text': l:text,
-        \   'type': l:type ==# 'error' ? 'E' : 'W',
+        \   'type': l:type is# 'error' ? 'E' : 'W',
         \})
     endfor
 

ale_linters/php/phpmd.vim

@@ -14,7 +14,7 @@ function! ale_linters#php#phpmd#Handle(buffer, lines) abort
     " Matches against lines like the following:
     "
     " /path/to/some-filename.php:18 message
-    let l:pattern = '^.*:\(\d\+\)\t\(.\+\)$'
+    let l:pattern = '^.*:\(\d\+\)\s\+\(.\+\)$'
     let l:output = []
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)

ale_linters/php/phpstan.vim

@@ -0,0 +1,53 @@
+" Author: medains <https://github.com/medains>, ardis <https://github.com/ardisdreelath>
+" Description: phpstan for PHP files
+
+" Set to change the ruleset
+let g:ale_php_phpstan_executable = get(g:, 'ale_php_phpstan_executable', 'phpstan')
+let g:ale_php_phpstan_level = get(g:, 'ale_php_phpstan_level', '4')
+let g:ale_php_phpstan_configuration = get(g:, 'ale_php_phpstan_configuration', '')
+
+function! ale_linters#php#phpstan#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'php_phpstan_executable')
+endfunction
+
+function! ale_linters#php#phpstan#GetCommand(buffer) abort
+    let l:executable = ale_linters#php#phpstan#GetExecutable(a:buffer)
+
+    let l:configuration = ale#Var(a:buffer, 'php_phpstan_configuration')
+    let l:configuration_option = !empty(l:configuration)
+    \   ? ' -c ' . l:configuration
+    \   : ''
+
+    return ale#Escape(l:executable)
+    \   . ' analyze -l'
+    \   . ale#Var(a:buffer, 'php_phpstan_level')
+    \   . ' --errorFormat raw'
+    \   . l:configuration_option
+    \   . ' %s'
+endfunction
+
+function! ale_linters#php#phpstan#Handle(buffer, lines) abort
+    " Matches against lines like the following:
+    "
+    " filename.php:15:message
+    " C:\folder\filename.php:15:message
+    let l:pattern = '^\([a-zA-Z]:\)\?[^:]\+:\(\d\+\):\(.*\)$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        call add(l:output, {
+        \   'lnum': l:match[2] + 0,
+        \   'text': l:match[3],
+        \   'type': 'W',
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('php', {
+\   'name': 'phpstan',
+\   'executable_callback': 'ale_linters#php#phpstan#GetExecutable',
+\   'command_callback': 'ale_linters#php#phpstan#GetCommand',
+\   'callback': 'ale_linters#php#phpstan#Handle',
+\})

ale_linters/pug/puglint.vim

@@ -1,10 +1,48 @@
 " Author: w0rp - <devw0rp@gmail.com>
 " Description: pug-lint for checking Pug/Jade files.
 
+call ale#Set('pug_puglint_options', '')
+call ale#Set('pug_puglint_executable', 'pug-lint')
+call ale#Set('pug_puglint_use_global', 0)
+
+function! ale_linters#pug#puglint#GetExecutable(buffer) abort
+    return ale#node#FindExecutable(a:buffer, 'pug_puglint', [
+    \   'node_modules/.bin/pug-lint',
+    \])
+endfunction
+
+function! s:FindConfig(buffer) abort
+    for l:filename in [
+    \   '.pug-lintrc',
+    \   '.pug-lintrc.js',
+    \   '.pug-lintrc.json',
+    \   'package.json',
+    \]
+        let l:config = ale#path#FindNearestFile(a:buffer, l:filename)
+
+        if !empty(l:config)
+            return l:config
+        endif
+    endfor
+
+    return ''
+endfunction
+
+function! ale_linters#pug#puglint#GetCommand(buffer) abort
+    let l:executable = ale_linters#pug#puglint#GetExecutable(a:buffer)
+    let l:options = ale#Var(a:buffer, 'pug_puglint_options')
+    let l:config = s:FindConfig(a:buffer)
+
+    return ale#Escape(l:executable)
+    \   . (!empty(l:options) ? ' ' . l:options : '')
+    \   . (!empty(l:config) ? ' -c ' . ale#Escape(l:config) : '')
+    \   . ' -r inline %t'
+endfunction
+
 call ale#linter#Define('pug', {
 \   'name': 'puglint',
-\   'executable': 'pug-lint',
+\   'executable_callback': 'ale_linters#pug#puglint#GetExecutable',
 \   'output_stream': 'stderr',
-\   'command': 'pug-lint -r inline %t',
+\   'command_callback': 'ale_linters#pug#puglint#GetCommand',
 \   'callback': 'ale#handlers#unix#HandleAsError',
 \})

ale_linters/python/flake8.vim

@@ -19,16 +19,8 @@ function! s:UsingModule(buffer) abort
 endfunction
 
 function! ale_linters#python#flake8#GetExecutable(buffer) abort
-    if !s:UsingModule(a:buffer) && !ale#Var(a:buffer, 'python_flake8_use_global')
+    if !s:UsingModule(a:buffer)
-        let l:virtualenv = ale#python#FindVirtualenv(a:buffer)
+        return ale#python#FindExecutable(a:buffer, 'python_flake8', ['flake8'])
-
-        if !empty(l:virtualenv)
-            let l:ve_flake8 = l:virtualenv . '/bin/flake8'
-
-            if executable(l:ve_flake8)
-                return l:ve_flake8
-            endif
-        endif
     endif
 
     return ale#Var(a:buffer, 'python_flake8_executable')
@@ -91,6 +83,7 @@ function! ale_linters#python#flake8#GetCommand(buffer, version_output) abort
 
     return ale#Escape(ale_linters#python#flake8#GetExecutable(a:buffer))
     \   . (!empty(l:options) ? ' ' . l:options : '')
+    \   . ' --format=default'
     \   . l:display_name_args . ' -'
 endfunction
 
@@ -123,7 +116,7 @@ function! ale_linters#python#flake8#Handle(buffer, lines) abort
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
         let l:code = l:match[3]
 
-        if (l:code ==# 'W291' || l:code ==# 'W293')
+        if (l:code is# 'W291' || l:code is# 'W293')
         \ && !ale#Var(a:buffer, 'warn_about_trailing_whitespace')
             " Skip warnings for trailing whitespace if the option is off.
             continue
@@ -136,12 +129,12 @@ function! ale_linters#python#flake8#Handle(buffer, lines) abort
         \   'type': 'W',
         \}
 
-        if l:code[:0] ==# 'F' || l:code ==# 'E999'
+        if l:code[:0] is# 'F' || l:code is# 'E999'
             let l:item.type = 'E'
-        elseif l:code[:0] ==# 'E'
+        elseif l:code[:0] is# 'E'
             let l:item.type = 'E'
             let l:item.sub_type = 'style'
-        elseif l:code[:0] ==# 'W'
+        elseif l:code[:0] is# 'W'
             let l:item.sub_type = 'style'
         endif
 

ale_linters/python/mypy.vim

@@ -7,17 +7,25 @@ let g:ale_python_mypy_options = get(g:, 'ale_python_mypy_options', '')
 let g:ale_python_mypy_use_global = get(g:, 'ale_python_mypy_use_global', 0)
 
 function! ale_linters#python#mypy#GetExecutable(buffer) abort
-    return ale#python#FindExecutable(a:buffer, 'python_mypy', ['/bin/mypy'])
+    return ale#python#FindExecutable(a:buffer, 'python_mypy', ['mypy'])
+endfunction
+
+" The directory to change to before running mypy
+function! s:GetDir(buffer) abort
+    let l:project_root = ale#python#FindProjectRoot(a:buffer)
+
+    return !empty(l:project_root)
+    \   ? l:project_root
+    \   : expand('#' . a:buffer . ':p:h')
 endfunction
 
 function! ale_linters#python#mypy#GetCommand(buffer) abort
-    let l:project_root = ale#python#FindProjectRoot(a:buffer)
+    let l:dir = s:GetDir(a:buffer)
-    let l:cd_command = !empty(l:project_root)
-    \   ? ale#path#CdString(l:project_root)
-    \   : ''
     let l:executable = ale_linters#python#mypy#GetExecutable(a:buffer)
 
-    return l:cd_command
+    " 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)
     \   . ' --show-column-numbers '
     \   . ale#Var(a:buffer, 'python_mypy_options')
@@ -25,6 +33,7 @@ function! ale_linters#python#mypy#GetCommand(buffer) abort
 endfunction
 
 function! ale_linters#python#mypy#Handle(buffer, lines) abort
+    let l:dir = s:GetDir(a:buffer)
     " Look for lines like the following:
     "
     " file.py:4: error: No library stub file for module 'django.db'
@@ -34,17 +43,13 @@ function! ale_linters#python#mypy#Handle(buffer, lines) abort
     " file.py:4: note: (Stub files are from https://github.com/python/typeshed)
     let l:pattern = '\v^([a-zA-Z]?:?[^:]+):(\d+):?(\d+)?: (error|warning): (.+)$'
     let l:output = []
-    let l:buffer_filename = expand('#' . a:buffer . ':p')
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
-        if l:buffer_filename[-len(l:match[1]):] !=# l:match[1]
-            continue
-        endif
-
         call add(l:output, {
+        \   'filename': ale#path#GetAbsPath(l:dir, l:match[1]),
         \   'lnum': l:match[2] + 0,
         \   'col': l:match[3] + 0,
-        \   'type': l:match[4] =~# 'error' ? 'E' : 'W',
+        \   'type': l:match[4] is# 'error' ? 'E' : 'W',
         \   'text': l:match[5],
         \})
     endfor

ale_linters/python/pycodestyle.vim

@@ -0,0 +1,42 @@
+" Author: Michael Thiesen <micthiesen@gmail.com>
+" Description: pycodestyle linting for python files
+
+call ale#Set('python_pycodestyle_executable', 'pycodestyle')
+call ale#Set('python_pycodestyle_options', '')
+call ale#Set('python_pycodestyle_use_global', 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))
+    \   . ' '
+    \   . ale#Var(a:buffer, 'python_pycodestyle_options')
+    \   . ' -'
+endfunction
+
+function! ale_linters#python#pycodestyle#Handle(buffer, lines) abort
+    let l:pattern = '\v^(\S*):(\d*):(\d*): ((([EW])\d+) .*)$'
+    let l:output = []
+
+    " lines are formatted as follows:
+    " file.py:21:26: W291 trailing whitespace
+    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,
+        \   'type': l:match[6],
+        \   'text': l:match[4],
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('python', {
+\   'name': 'pycodestyle',
+\   'executable_callback': 'ale_linters#python#pycodestyle#GetExecutable',
+\   'command_callback': 'ale_linters#python#pycodestyle#GetCommand',
+\   'callback': 'ale_linters#python#pycodestyle#Handle',
+\})

ale_linters/python/pylint.vim

@@ -10,19 +10,7 @@ let g:ale_python_pylint_options =
 let g:ale_python_pylint_use_global = get(g:, 'ale_python_pylint_use_global', 0)
 
 function! ale_linters#python#pylint#GetExecutable(buffer) abort
-    if !ale#Var(a:buffer, 'python_pylint_use_global')
+    return ale#python#FindExecutable(a:buffer, 'python_pylint', ['pylint'])
-        let l:virtualenv = ale#python#FindVirtualenv(a:buffer)
-
-        if !empty(l:virtualenv)
-            let l:ve_pylint = l:virtualenv . '/bin/pylint'
-
-            if executable(l:ve_pylint)
-                return l:ve_pylint
-            endif
-        endif
-    endif
-
-    return ale#Var(a:buffer, 'python_pylint_executable')
 endfunction
 
 function! ale_linters#python#pylint#GetCommand(buffer) abort
@@ -43,13 +31,13 @@ function! ale_linters#python#pylint#Handle(buffer, lines) abort
         "let l:failed = append(0, l:match)
         let l:code = l:match[3]
 
-        if (l:code ==# 'C0303')
+        if (l:code is# 'C0303')
         \ && !ale#Var(a:buffer, 'warn_about_trailing_whitespace')
             " Skip warnings for trailing whitespace if the option is off.
             continue
         endif
 
-        if l:code ==# 'I0011'
+        if l:code is# 'I0011'
             " Skip 'Locally disabling' message
              continue
         endif
@@ -58,7 +46,7 @@ function! ale_linters#python#pylint#Handle(buffer, lines) abort
         \   'lnum': l:match[1] + 0,
         \   'col': l:match[2] + 1,
         \   'text': l:code . ': ' . l:match[5] . ' (' . l:match[4] . ')',
-        \   'type': l:code[:0] ==# 'E' ? 'E' : 'W',
+        \   'type': l:code[:0] is# 'E' ? 'E' : 'W',
         \})
     endfor
 

ale_linters/r/lintr.vim

@@ -0,0 +1,20 @@
+" Author: Michel Lang <michellang@gmail.com>, w0rp <devw0rp@gmail.com>
+" Description: This file adds support for checking R code with lintr.
+
+let g:ale_r_lintr_options =
+\   get(g:, 'ale_r_lintr_options', 'lintr::with_defaults()')
+" A reasonable alternative default:
+" \   get(g:, 'ale_r_lintr_options', 'lintr::with_defaults(object_usage_linter = NULL)')
+
+function! ale_linters#r#lintr#GetCommand(buffer) abort
+    return ale#path#BufferCdString(a:buffer)
+    \   . 'Rscript -e ' . ale#Escape('lintr::lint(commandArgs(TRUE)[1], eval(parse(text = commandArgs(TRUE)[2])))') . ' %t' . ' ' . ale#Escape(ale#Var(a:buffer, 'r_lintr_options'))
+endfunction
+
+call ale#linter#Define('r', {
+\   'name': 'lintr',
+\   'executable': 'Rscript',
+\   'command_callback': 'ale_linters#r#lintr#GetCommand',
+\   'callback': 'ale#handlers#gcc#HandleGCCFormat',
+\   'output_stream': 'both',
+\})

ale_linters/ruby/brakeman.vim

@@ -5,26 +5,21 @@ let g:ale_ruby_brakeman_options =
 \   get(g:, 'ale_ruby_brakeman_options', '')
 
 function! ale_linters#ruby#brakeman#Handle(buffer, lines) abort
-    let l:result = json_decode(join(a:lines, ''))
-
     let l:output = []
+    let l:json = ale#util#FuzzyJSONDecode(a:lines, {})
+    let l:sep = has('win32') ? '\' : '/'
+    " Brakeman always outputs paths relative to the Rails app root
+    let l:rails_root = ale#ruby#FindRailsRoot(a:buffer)
 
-    for l:warning in l:result.warnings
+    for l:warning in get(l:json, 'warnings', [])
-        " Brakeman always outputs paths relative to the Rails app root
-        let l:rails_root = s:FindRailsRoot(a:buffer)
-        let l:warning_file = l:rails_root . '/' . l:warning.file
-
-        if !ale#path#IsBufferPath(a:buffer, l:warning_file)
-          continue
-        endif
-
         let l:text = l:warning.warning_type . ' ' . l:warning.message . ' (' . l:warning.confidence . ')'
         let l:line = l:warning.line != v:null ? l:warning.line : 1
 
         call add(l:output, {
-        \    'lnum': l:line,
+        \   'filename': l:rails_root . l:sep .  l:warning.file,
-        \    'type': 'W',
+        \   'lnum': l:line,
-        \    'text': l:text,
+        \   'type': 'W',
+        \   'text': l:text,
         \})
     endfor
 
@@ -32,9 +27,9 @@ function! ale_linters#ruby#brakeman#Handle(buffer, lines) abort
 endfunction
 
 function! ale_linters#ruby#brakeman#GetCommand(buffer) abort
-    let l:rails_root = s:FindRailsRoot(a:buffer)
+    let l:rails_root = ale#ruby#FindRailsRoot(a:buffer)
 
-    if l:rails_root ==? ''
+    if l:rails_root is? ''
         return ''
     endif
 
@@ -43,26 +38,6 @@ function! ale_linters#ruby#brakeman#GetCommand(buffer) abort
     \    . ' -p ' . ale#Escape(l:rails_root)
 endfunction
 
-function! s:FindRailsRoot(buffer) abort
-    " Find the nearest dir contining "app", "db", and "config", and assume it is
-    " the root of a Rails app.
-    for l:name in ['app', 'config', 'db']
-        let l:dir = fnamemodify(
-        \   ale#path#FindNearestDirectory(a:buffer, l:name),
-        \   ':h:h'
-        \)
-
-        if l:dir !=# '.'
-        \&& isdirectory(l:dir . '/app')
-        \&& isdirectory(l:dir . '/config')
-        \&& isdirectory(l:dir . '/db')
-            return l:dir
-        endif
-    endfor
-
-    return ''
-endfunction
-
 call ale#linter#Define('ruby', {
 \    'name': 'brakeman',
 \    'executable': 'brakeman',

ale_linters/ruby/rails_best_practices.vim

@@ -0,0 +1,53 @@
+" Author: Eddie Lebow https://github.com/elebow
+" Description: rails_best_practices, a code metric tool for rails projects
+
+let g:ale_ruby_rails_best_practices_options =
+\   get(g:, 'ale_ruby_rails_best_practices_options', '')
+
+function! ale_linters#ruby#rails_best_practices#Handle(buffer, lines) abort
+    let l:output = []
+
+    for l:warning in ale#util#FuzzyJSONDecode(a:lines, [])
+        if !ale#path#IsBufferPath(a:buffer, l:warning.filename)
+            continue
+        endif
+
+        call add(l:output, {
+        \    'lnum': l:warning.line_number + 0,
+        \    'type': 'W',
+        \    'text': l:warning.message,
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+function! ale_linters#ruby#rails_best_practices#GetCommand(buffer) abort
+    let l:executable = ale#handlers#rails_best_practices#GetExecutable(a:buffer)
+    let l:exec_args = l:executable =~? 'bundle$'
+    \   ? ' exec rails_best_practices'
+    \   : ''
+
+    let l:rails_root = ale#ruby#FindRailsRoot(a:buffer)
+
+    if l:rails_root is? ''
+        return ''
+    endif
+
+    let l:output_file = ale#Has('win32') ? '%t ' : '/dev/stdout '
+    let l:cat_file = ale#Has('win32') ? '; type %t' : ''
+
+    return ale#Escape(l:executable) . l:exec_args
+    \    . ' --silent -f json --output-file ' . l:output_file
+    \    . ale#Var(a:buffer, 'ruby_rails_best_practices_options')
+    \    . ale#Escape(l:rails_root)
+    \    . l:cat_file
+endfunction
+
+call ale#linter#Define('ruby', {
+\    'name': 'rails_best_practices',
+\    'executable_callback': 'ale#handlers#rails_best_practices#GetExecutable',
+\    'command_callback': 'ale_linters#ruby#rails_best_practices#GetCommand',
+\    'callback': 'ale_linters#ruby#rails_best_practices#Handle',
+\    'lint_file': 1,
+\})

ale_linters/ruby/reek.vim

@@ -1,22 +1,13 @@
 " Author: Eddie Lebow https://github.com/elebow
 " Description: Reek, a code smell detector for Ruby files
 
-let g:ale_ruby_reek_show_context =
+call ale#Set('ruby_reek_show_context', 0)
-\   get(g:, 'ale_ruby_reek_show_context', 0)
+call ale#Set('ruby_reek_show_wiki_link', 0)
-
-let g:ale_ruby_reek_show_wiki_link =
-\   get(g:, 'ale_ruby_reek_show_wiki_link', 0)
 
 function! ale_linters#ruby#reek#Handle(buffer, lines) abort
-    if len(a:lines) == 0
-        return []
-    endif
-
-    let l:errors = json_decode(a:lines[0])
-
     let l:output = []
 
-    for l:error in l:errors
+    for l:error in ale#util#FuzzyJSONDecode(a:lines, [])
         for l:location in l:error.lines
             call add(l:output, {
             \    'lnum': l:location,

ale_linters/ruby/rubocop.vim

@@ -1,58 +1,60 @@
-" Author: ynonp - https://github.com/ynonp
+" Author: ynonp - https://github.com/ynonp, Eddie Lebow https://github.com/elebow
-" Description: rubocop for Ruby files
+" Description: RuboCop, a code style analyzer for Ruby files
-
-" Set this option to change Rubocop options.
-if !exists('g:ale_ruby_rubocop_options')
-    " let g:ale_ruby_rubocop_options = '--lint'
-    let g:ale_ruby_rubocop_options = ''
-endif
-
-if !exists('g:ale_ruby_rubocop_executable')
-    let g:ale_ruby_rubocop_executable = 'rubocop'
-endif
-
-function! ale_linters#ruby#rubocop#GetExecutable(buffer) abort
-    return ale#Var(a:buffer, 'ruby_rubocop_executable')
-endfunction
 
 function! ale_linters#ruby#rubocop#GetCommand(buffer) abort
-    let l:executable = ale#Var(a:buffer, 'ruby_rubocop_executable')
+    let l:executable = ale#handlers#rubocop#GetExecutable(a:buffer)
     let l:exec_args = l:executable =~? 'bundle$'
     \   ? ' exec rubocop'
     \   : ''
 
     return ale#Escape(l:executable) . l:exec_args
-    \   . ' --format emacs --force-exclusion '
+    \   . ' --format json --force-exclusion '
     \   . ale#Var(a:buffer, 'ruby_rubocop_options')
-    \   . ' --stdin ' . bufname(a:buffer)
+    \   . ' --stdin ' . ale#Escape(expand('#' . a:buffer . ':p'))
 endfunction
 
 function! ale_linters#ruby#rubocop#Handle(buffer, lines) abort
-    " Matches patterns line the following:
+    try
-    "
+        let l:errors = json_decode(a:lines[0])
-    " <path>:83:29: C: Prefer single-quoted strings when you don't
+    catch
-    " need string interpolation or special symbols.
+        return []
-    let l:pattern = '\v:(\d+):(\d+): (.): (.+)'
+    endtry
+
+    if !has_key(l:errors, 'summary')
+    \|| l:errors['summary']['offense_count'] == 0
+    \|| empty(l:errors['files'])
+        return []
+    endif
+
     let l:output = []
 
-    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+    for l:error in l:errors['files'][0]['offenses']
-        let l:text = l:match[4]
+        let l:start_col = l:error['location']['column'] + 0
-        let l:type = l:match[3]
-
         call add(l:output, {
-        \   'lnum': l:match[1] + 0,
+        \   'lnum': l:error['location']['line'] + 0,
-        \   'col': l:match[2] + 0,
+        \   'col': l:start_col,
-        \   'text': l:text,
+        \   'end_col': l:start_col + l:error['location']['length'] - 1,
-        \   'type': index(['F', 'E'], l:type) != -1 ? 'E' : 'W',
+        \   'text': printf('%s [%s]', l:error['message'], l:error['cop_name']),
+        \   'type': ale_linters#ruby#rubocop#GetType(l:error['severity']),
         \})
     endfor
 
     return l:output
 endfunction
 
+function! ale_linters#ruby#rubocop#GetType(severity) abort
+    if a:severity is? 'convention'
+    \|| a:severity is? 'warning'
+    \|| a:severity is? 'refactor'
+        return 'W'
+    endif
+
+    return 'E'
+endfunction
+
 call ale#linter#Define('ruby', {
 \   'name': 'rubocop',
-\   'executable_callback': 'ale_linters#ruby#rubocop#GetExecutable',
+\   'executable_callback': 'ale#handlers#rubocop#GetExecutable',
 \   'command_callback': 'ale_linters#ruby#rubocop#GetCommand',
 \   'callback': 'ale_linters#ruby#rubocop#Handle',
 \})

ale_linters/rust/cargo.vim

@@ -4,7 +4,7 @@
 let g:ale_rust_cargo_use_check = get(g:, 'ale_rust_cargo_use_check', 0)
 
 function! ale_linters#rust#cargo#GetCargoExecutable(bufnr) abort
-    if ale#path#FindNearestFile(a:bufnr, 'Cargo.toml') !=# ''
+    if ale#path#FindNearestFile(a:bufnr, 'Cargo.toml') isnot# ''
         return 'cargo'
     else
         " if there is no Cargo.toml file, we don't use cargo even if it exists,
@@ -26,6 +26,6 @@ call ale#linter#Define('rust', {
 \   'executable_callback': 'ale_linters#rust#cargo#GetCargoExecutable',
 \   'command_callback': 'ale_linters#rust#cargo#GetCommand',
 \   'callback': 'ale#handlers#rust#HandleRustErrors',
-\   'output_stream': 'stdout',
+\   'output_stream': 'both',
 \   'lint_file': 1,
 \})

ale_linters/rust/rls.vim

@@ -0,0 +1,33 @@
+" Author: w0rp <devw0rp@gmail.com>
+" Description: A language server for Rust
+
+call ale#Set('rust_rls_executable', 'rls')
+
+function! ale_linters#rust#rls#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'rust_rls_executable')
+endfunction
+
+function! ale_linters#rust#rls#GetCommand(buffer) abort
+    let l:executable = ale_linters#rust#rls#GetExecutable(a:buffer)
+
+    return ale#Escape(l:executable) . ' +nightly'
+endfunction
+
+function! ale_linters#rust#rls#GetLanguage(buffer) abort
+    return 'rust'
+endfunction
+
+function! ale_linters#rust#rls#GetProjectRoot(buffer) abort
+    let l:cargo_file = ale#path#FindNearestFile(a:buffer, 'Cargo.toml')
+
+    return !empty(l:cargo_file) ? fnamemodify(l:cargo_file, ':h') : ''
+endfunction
+
+call ale#linter#Define('rust', {
+\   'name': 'rls',
+\   'lsp': 'stdio',
+\   'executable_callback': 'ale_linters#rust#rls#GetExecutable',
+\   'command_callback': 'ale_linters#rust#rls#GetCommand',
+\   'language_callback': 'ale_linters#rust#rls#GetLanguage',
+\   'project_root_callback': 'ale_linters#rust#rls#GetProjectRoot',
+\})

ale_linters/rust/rustc.vim

@@ -7,7 +7,7 @@ function! ale_linters#rust#rustc#RustcCommand(buffer_number) abort
     " <project root>/target/release/deps/
     let l:cargo_file = ale#path#FindNearestFile(a:buffer_number, 'Cargo.toml')
 
-    if l:cargo_file !=# ''
+    if l:cargo_file isnot# ''
         let l:project_root = fnamemodify(l:cargo_file, ':h')
         let l:dependencies = '-L ' . l:project_root . '/target/debug/deps -L ' .
         \   l:project_root . '/target/release/deps'

ale_linters/scala/scalac.vim

@@ -1,6 +1,26 @@
-" Author: Zoltan Kalmar - https://github.com/kalmiz
+" Author: Zoltan Kalmar - https://github.com/kalmiz,
+"         w0rp <devw0rp@gmail.com>
 " Description: Basic scala support using scalac
 
+function! ale_linters#scala#scalac#GetExecutable(buffer) abort
+    if index(split(getbufvar(a:buffer, '&filetype'), '\.'), 'sbt') >= 0
+        " Don't check sbt files with scalac.
+        return ''
+    endif
+
+    return 'scalac'
+endfunction
+
+function! ale_linters#scala#scalac#GetCommand(buffer) abort
+    let l:executable = ale_linters#scala#scalac#GetExecutable(a:buffer)
+
+    if empty(l:executable)
+        return ''
+    endif
+
+    return ale#Escape(l:executable) . ' -Ystop-after:parser %t'
+endfunction
+
 function! ale_linters#scala#scalac#Handle(buffer, lines) abort
     " Matches patterns line the following:
     "
@@ -18,7 +38,7 @@ function! ale_linters#scala#scalac#Handle(buffer, lines) abort
         endif
 
         let l:text = l:match[3]
-        let l:type = l:match[2] ==# 'error' ? 'E' : 'W'
+        let l:type = l:match[2] is# 'error' ? 'E' : 'W'
         let l:col = 0
 
         if l:ln + 1 < len(a:lines)
@@ -38,8 +58,8 @@ endfunction
 
 call ale#linter#Define('scala', {
 \   'name': 'scalac',
-\   'executable': 'scalac',
+\   'executable_callback': 'ale_linters#scala#scalac#GetExecutable',
-\   'output_stream': 'stderr',
+\   'command_callback': 'ale_linters#scala#scalac#GetCommand',
-\   'command': 'scalac -Ystop-after:parser %t',
 \   'callback': 'ale_linters#scala#scalac#Handle',
+\   'output_stream': 'stderr',
 \})

ale_linters/scala/scalastyle.vim

@@ -0,0 +1,94 @@
+" Author: Kevin Kays - https://github.com/okkays
+" Description: Support for the scalastyle checker.
+
+let g:ale_scala_scalastyle_options =
+\   get(g:, 'ale_scala_scalastyle_options', '')
+
+let g:ale_scalastyle_config_loc =
+\   get(g:, 'ale_scalastyle_config_loc', '')
+
+function! ale_linters#scala#scalastyle#Handle(buffer, lines) abort
+    " Look for help output from scalastyle first, which indicates that no
+    " configuration file was found.
+    for l:line in a:lines[:10]
+        if l:line =~# '-c, --config'
+            return [{
+            \   'lnum': 1,
+            \   'text': '(See :help ale-scala-scalastyle)'
+            \       . ' No scalastyle configuration file was found.',
+            \}]
+        endif
+    endfor
+
+    " Matches patterns like the following:
+    "
+    " warning file=/home/blurble/Doop.scala message=Missing or badly formed ScalaDoc: Extra @param foobles line=190
+    let l:patterns = [
+    \   '^\(.\+\) .\+ message=\(.\+\) line=\(\d\+\)$',
+    \   '^\(.\+\) .\+ message=\(.\+\) line=\(\d\+\) column=\(\d\+\)$',
+    \]
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:patterns)
+        let l:args = {
+        \   'lnum': l:match[3] + 0,
+        \   'type': l:match[1] =~? 'error' ? 'E' : 'W',
+        \   'text': l:match[2]
+        \}
+
+        if !empty(l:match[4])
+            let l:args['col'] = l:match[4] + 1
+        endif
+
+        call add(l:output, l:args)
+    endfor
+
+    return l:output
+endfunction
+
+function! ale_linters#scala#scalastyle#GetCommand(buffer) abort
+    " Search for scalastyle config in parent directories.
+    let l:scalastyle_config = ''
+    let l:potential_configs = [
+    \   'scalastyle_config.xml',
+    \   'scalastyle-config.xml'
+    \]
+    for l:config in l:potential_configs
+        let l:scalastyle_config = ale#path#ResolveLocalPath(
+        \   a:buffer,
+        \   l:config,
+        \   ''
+        \)
+        if !empty(l:scalastyle_config)
+            break
+        endif
+    endfor
+
+    " If all else fails, try the global config.
+    if empty(l:scalastyle_config)
+        let l:scalastyle_config = get(g:, 'ale_scalastyle_config_loc', '')
+    endif
+
+    " Build the command using the config file and additional options.
+    let l:command = 'scalastyle'
+
+    if !empty(l:scalastyle_config)
+        let l:command .= ' --config ' . ale#Escape(l:scalastyle_config)
+    endif
+
+    if !empty(g:ale_scala_scalastyle_options)
+        let l:command .= ' ' . g:ale_scala_scalastyle_options
+    endif
+
+    let l:command .= ' %t'
+
+    return l:command
+endfunction
+
+call ale#linter#Define('scala', {
+\   'name': 'scalastyle',
+\   'executable': 'scalastyle',
+\   'output_stream': 'stdout',
+\   'command_callback': 'ale_linters#scala#scalastyle#GetCommand',
+\   'callback': 'ale_linters#scala#scalastyle#Handle',
+\})

ale_linters/scss/scsslint.vim

@@ -19,7 +19,7 @@ function! ale_linters#scss#scsslint#Handle(buffer, lines) abort
         \   'lnum': l:match[1] + 0,
         \   'col': l:match[2] + 0,
         \   'text': l:match[4],
-        \   'type': l:match[3] ==# 'E' ? 'E' : 'W',
+        \   'type': l:match[3] is# 'E' ? 'E' : 'W',
         \})
     endfor
 

ale_linters/sh/shell.vim

@@ -11,24 +11,16 @@ endif
 if !exists('g:ale_sh_shell_default_shell')
     let g:ale_sh_shell_default_shell = fnamemodify($SHELL, ':t')
 
-    if g:ale_sh_shell_default_shell ==# '' || g:ale_sh_shell_default_shell ==# 'fish'
+    if g:ale_sh_shell_default_shell is# '' || g:ale_sh_shell_default_shell is# 'fish'
         let g:ale_sh_shell_default_shell = 'bash'
     endif
 endif
 
 function! ale_linters#sh#shell#GetExecutable(buffer) abort
-    let l:banglines = getbufline(a:buffer, 1)
+    let l:shell_type = ale#handlers#sh#GetShellType(a:buffer)
 
-    " Take the shell executable from the hashbang, if we can.
+    if !empty(l:shell_type)
-    if len(l:banglines) == 1 && l:banglines[0] =~# '^#!'
+        return l:shell_type
-        " Remove options like -e, etc.
-        let l:line = substitute(l:banglines[0], '--\?[a-zA-Z0-9]\+', '', 'g')
-
-        for l:possible_shell in ['bash', 'tcsh', 'csh', 'zsh', 'sh']
-            if l:line =~# l:possible_shell . '\s*$'
-                return l:possible_shell
-            endif
-        endfor
     endif
 
     return ale#Var(a:buffer, 'sh_shell_default_shell')

ale_linters/sh/shellcheck.vim

@@ -2,7 +2,7 @@
 " Description: This file adds support for using the shellcheck linter with
 "   shell scripts.
 
-" This global variable can be set with a string of comma-seperated error
+" This global variable can be set with a string of comma-separated error
 " codes to exclude from shellcheck. For example:
 "
 " let g:ale_sh_shellcheck_exclusions = 'SC2002,SC2004'
@@ -19,25 +19,40 @@ function! ale_linters#sh#shellcheck#GetExecutable(buffer) abort
     return ale#Var(a:buffer, 'sh_shellcheck_executable')
 endfunction
 
-function! s:GetDialectArgument() abort
+function! ale_linters#sh#shellcheck#GetDialectArgument(buffer) abort
-    if exists('b:is_bash') && b:is_bash
+    let l:shell_type = ale#handlers#sh#GetShellType(a:buffer)
-        return '-s bash'
+
-    elseif exists('b:is_sh') && b:is_sh
+    if !empty(l:shell_type)
-        return '-s sh'
+        " Use the dash dialect for /bin/ash, etc.
-    elseif exists('b:is_kornshell') && b:is_kornshell
+        if l:shell_type is# 'ash'
-        return '-s ksh'
+            return 'dash'
+        endif
+
+        return l:shell_type
+    endif
+
+    " If there's no hashbang, try using Vim's buffer variables.
+    if getbufvar(a:buffer, 'is_bash', 0)
+        return 'bash'
+    elseif getbufvar(a:buffer, 'is_sh', 0)
+        return 'sh'
+    elseif getbufvar(a:buffer, 'is_kornshell', 0)
+        return 'ksh'
     endif
 
     return ''
 endfunction
 
 function! ale_linters#sh#shellcheck#GetCommand(buffer) abort
+    let l:options = ale#Var(a:buffer, 'sh_shellcheck_options')
     let l:exclude_option = ale#Var(a:buffer, 'sh_shellcheck_exclusions')
+    let l:dialect = ale_linters#sh#shellcheck#GetDialectArgument(a:buffer)
 
     return ale_linters#sh#shellcheck#GetExecutable(a:buffer)
-    \   . ' ' . ale#Var(a:buffer, 'sh_shellcheck_options')
+    \   . (!empty(l:dialect) ? ' -s ' . l:dialect : '')
-    \   . ' ' . (!empty(l:exclude_option) ? '-e ' . l:exclude_option : '')
+    \   . (!empty(l:options) ? ' ' . l:options : '')
-    \   . ' ' . s:GetDialectArgument() . ' -f gcc -'
+    \   . (!empty(l:exclude_option) ? ' -e ' . l:exclude_option : '')
+    \   . ' -f gcc -'
 endfunction
 
 call ale#linter#Define('sh', {

ale_linters/slim/slimlint.vim

@@ -1,5 +1,25 @@
 " Author: Markus Doits - https://github.com/doits
-" Description: slim-lint for Slim files, based on hamllint.vim
+" Description: slim-lint for Slim files
+
+function! ale_linters#slim#slimlint#GetCommand(buffer) abort
+    let l:command = 'slim-lint %t'
+
+    let l:rubocop_config = ale#path#FindNearestFile(a:buffer, '.rubocop.yml')
+
+    " Set SLIM_LINT_RUBOCOP_CONF variable as it is needed for slim-lint to
+    " pick up the rubocop config.
+    "
+    " See https://github.com/sds/slim-lint/blob/master/lib/slim_lint/linter/README.md#rubocop
+    if !empty(l:rubocop_config)
+      if ale#Has('win32')
+        let l:command = 'set SLIM_LINT_RUBOCOP_CONF=' . ale#Escape(l:rubocop_config) . ' && ' . l:command
+      else
+        let l:command = 'SLIM_LINT_RUBOCOP_CONF=' . ale#Escape(l:rubocop_config) . ' ' . l:command
+      endif
+    endif
+
+    return l:command
+endfunction
 
 function! ale_linters#slim#slimlint#Handle(buffer, lines) abort
     " Matches patterns like the following:
@@ -21,6 +41,6 @@ endfunction
 call ale#linter#Define('slim', {
 \   'name': 'slimlint',
 \   'executable': 'slim-lint',
-\   'command': 'slim-lint %t',
+\   'command_callback': 'ale_linters#slim#slimlint#GetCommand',
 \   'callback': 'ale_linters#slim#slimlint#Handle'
 \})

ale_linters/sml/smlnj.vim

@@ -1,47 +1,9 @@
-" Author: Paulo Alem    <paulo.alem@gmail.com>
+" Author: Paulo Alem <paulo.alem@gmail.com>, Jake Zimmerman <jake@zimmerman.io>
-" Description: Rudimentary SML checking with smlnj compiler
+" Description: Single-file SML checking with SML/NJ compiler
-
-function! ale_linters#sml#smlnj#Handle(buffer, lines) abort
-    " Try to match basic sml errors
-
-    let l:out = []
-    let l:pattern = '^.*\:\([0-9\.]\+\)\ \(\w\+\)\:\ \(.*\)'
-    let l:pattern2 = '^.*\:\([0-9]\+\)\.\?\([0-9]\+\).* \(\(Warning\|Error\): .*\)'
-
-    for l:line in a:lines
-        let l:match2 = matchlist(l:line, l:pattern2)
-
-        if len(l:match2) != 0
-          call add(l:out, {
-          \   'bufnr': a:buffer,
-          \   'lnum': l:match2[1] + 0,
-          \   'col' : l:match2[2] - 1,
-          \   'text': l:match2[3],
-          \   'type': l:match2[3] =~# '^Warning' ? 'W' : 'E',
-          \})
-          continue
-        endif
-
-        let l:match = matchlist(l:line, l:pattern)
-
-        if len(l:match) != 0
-          call add(l:out, {
-          \   'bufnr': a:buffer,
-          \   'lnum': l:match[1] + 0,
-          \   'text': l:match[2] . ': ' . l:match[3],
-          \   'type': l:match[2] ==# 'error' ? 'E' : 'W',
-          \})
-          continue
-        endif
-
-    endfor
-
-    return l:out
-endfunction
 
 call ale#linter#Define('sml', {
 \   'name': 'smlnj',
-\   'executable': 'sml',
+\   'executable_callback': 'ale#handlers#sml#GetExecutableSmlnjFile',
 \   'command': 'sml',
-\   'callback': 'ale_linters#sml#smlnj#Handle',
+\   'callback': 'ale#handlers#sml#Handle',
 \})

ale_linters/sml/smlnj_cm.vim

@@ -0,0 +1,19 @@
+" Author: Jake Zimmerman <jake@zimmerman.io>
+" Description: SML checking with SML/NJ Compilation Manager
+
+function! ale_linters#sml#smlnj_cm#GetCommand(buffer) abort
+    let l:cmfile = ale#handlers#sml#GetCmFile(a:buffer)
+    return 'sml -m ' . l:cmfile . ' < /dev/null'
+endfunction
+
+" Using CM requires that we set "lint_file: 1", since it reads the files
+" from the disk itself.
+call ale#linter#Define('sml', {
+\   'name': 'smlnj-cm',
+\   'executable_callback': 'ale#handlers#sml#GetExecutableSmlnjCm',
+\   'lint_file': 1,
+\   'command_callback': 'ale_linters#sml#smlnj_cm#GetCommand',
+\   'callback': 'ale#handlers#sml#Handle',
+\})
+
+" vim:ts=4:sts=4:sw=4

ale_linters/solidity/solium.vim

@@ -0,0 +1,9 @@
+" Author: Jeff Sutherland - https://github.com/jdsutherland
+" Description: Report errors in Solidity code with solium
+
+call ale#linter#Define('solidity', {
+\   'name': 'solium',
+\   'executable': 'solium',
+\   'command': 'solium --reporter gcc --file %t',
+\   'callback': 'ale#handlers#gcc#HandleGCCFormat',
+\})

ale_linters/stylus/stylelint.vim

@@ -0,0 +1,24 @@
+" Author: diartyz <diartyz@gmail.com>, w0rp <devw0rp@gmail.com>
+
+call ale#Set('stylus_stylelint_executable', 'stylelint')
+call ale#Set('stylus_stylelint_options', '')
+call ale#Set('stylus_stylelint_use_global', 0)
+
+function! ale_linters#stylus#stylelint#GetExecutable(buffer) abort
+    return ale#node#FindExecutable(a:buffer, 'stylus_stylelint', [
+    \   'node_modules/.bin/stylelint',
+    \])
+endfunction
+
+function! ale_linters#stylus#stylelint#GetCommand(buffer) abort
+    return ale_linters#stylus#stylelint#GetExecutable(a:buffer)
+    \   . ' ' . ale#Var(a:buffer, 'stylus_stylelint_options')
+    \   . ' --stdin-filename %s'
+endfunction
+
+call ale#linter#Define('stylus', {
+\   'name': 'stylelint',
+\   'executable_callback': 'ale_linters#stylus#stylelint#GetExecutable',
+\   'command_callback': 'ale_linters#stylus#stylelint#GetCommand',
+\   'callback': 'ale#handlers#css#HandleStyleLintFormat',
+\})

ale_linters/tcl/nagelfar.vim

@@ -0,0 +1,46 @@
+" Author: Nick James <github@nsjuk.xyz>
+" Description: nagelfar linter for tcl files
+
+call ale#Set('tcl_nagelfar_executable', 'nagelfar.tcl')
+call ale#Set('tcl_nagelfar_options', '')
+
+function! ale_linters#tcl#nagelfar#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'tcl_nagelfar_executable')
+endfunction
+
+function! ale_linters#tcl#nagelfar#GetCommand(buffer) abort
+    let l:options = ale#Var(a:buffer, 'tcl_nagelfar_options')
+
+    return ale#Escape(ale_linters#tcl#nagelfar#GetExecutable(a:buffer))
+    \   . (!empty(l:options) ? ' ' . l:options : '')
+    \   . ' %s'
+endfunction
+
+function! ale_linters#tcl#nagelfar#Handle(buffer, lines) abort
+    " Matches patterns like the following:
+    " Line   5: W Found constant "bepa" which is also a variable.
+    " Line  13: E Wrong number of arguments (3) to "set"
+    " Line  93: N Close brace not aligned with line 90 (4 0)
+
+    let l:pattern = '^Line\s\+\([0-9]\+\): \([NEW]\) \(.*\)$'
+    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] is# 'N' ? 'W' : l:match[2],
+        \   'text': l:match[3],
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('tcl', {
+\   'name': 'nagelfar',
+\   'output_stream': 'stdout',
+\   'executable_callback': 'ale_linters#tcl#nagelfar#GetExecutable',
+\   'command_callback': 'ale_linters#tcl#nagelfar#GetCommand',
+\   'callback': 'ale_linters#tcl#nagelfar#Handle',
+\   'lint_file': 1,
+\})

ale_linters/thrift/thrift.vim

@@ -0,0 +1,91 @@
+" Author: Jon Parise <jon@indelible.org>
+
+call ale#Set('thrift_thrift_executable', 'thrift')
+call ale#Set('thrift_thrift_generators', ['cpp'])
+call ale#Set('thrift_thrift_includes', [])
+call ale#Set('thrift_thrift_options', '-strict')
+
+function! ale_linters#thrift#thrift#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'thrift_thrift_executable')
+endfunction
+
+function! ale_linters#thrift#thrift#GetCommand(buffer) abort
+    let l:generators = ale#Var(a:buffer, 'thrift_thrift_generators')
+    let l:includes = ale#Var(a:buffer, 'thrift_thrift_includes')
+
+    " The thrift compiler requires at least one generator. If none are set,
+    " fall back to our default value to avoid silently failing. We could also
+    " `throw` here, but that seems even less helpful.
+    if empty(l:generators)
+        let l:generators = ['cpp']
+    endif
+
+    let l:output_dir = tempname()
+    call mkdir(l:output_dir)
+    call ale#engine#ManageDirectory(a:buffer, l:output_dir)
+
+    return ale#Escape(ale_linters#thrift#thrift#GetExecutable(a:buffer))
+    \   . ' ' . join(map(copy(l:generators), "'--gen ' . v:val"))
+    \   . ' ' . join(map(copy(l:includes), "'-I ' . v:val"))
+    \   . ' ' . ale#Var(a:buffer, 'thrift_thrift_options')
+    \   . ' -out ' . ale#Escape(l:output_dir)
+    \   . ' %t'
+endfunction
+
+function! ale_linters#thrift#thrift#Handle(buffer, lines) abort
+    " Matches lines like the following:
+    "
+    " [SEVERITY:/path/filename.thrift:31] Message text
+    " [ERROR:/path/filename.thrift:31] (last token was ';')
+    let l:pattern = '\v^\[(\u+):(.*):(\d+)\] (.*)$'
+
+    let l:index = 0
+    let l:output = []
+
+    " Roll our own output-matching loop instead of using ale#util#GetMatches
+    " because we need to support error messages that span multiple lines.
+    while l:index < len(a:lines)
+        let l:line = a:lines[l:index]
+
+        let l:match = matchlist(l:line, l:pattern)
+        if empty(l:match)
+            let l:index += 1
+            continue
+        endif
+
+        let l:severity = l:match[1]
+        if l:severity is# 'WARNING'
+            let l:type = 'W'
+        else
+            let l:type = 'E'
+        endif
+
+        " If our text looks like "(last token was ';')", the *next* line
+        " should contain a more descriptive error message.
+        let l:text = l:match[4]
+        if l:text =~# '\(last token was .*\)'
+            let l:index += 1
+            let l:text = get(a:lines, l:index, 'Unknown error ' . l:text)
+        endif
+
+        call add(l:output, {
+        \   'lnum': l:match[3] + 0,
+        \   'col': 0,
+        \   'type': l:type,
+        \   'text': l:text,
+        \})
+
+        let l:index += 1
+    endwhile
+
+    return l:output
+endfunction
+
+call ale#linter#Define('thrift', {
+\   'name': 'thrift',
+\   'executable': 'thrift',
+\   'output_stream': 'both',
+\   'executable_callback': 'ale_linters#thrift#thrift#GetExecutable',
+\   'command_callback': 'ale_linters#thrift#thrift#GetCommand',
+\   'callback': 'ale_linters#thrift#thrift#Handle',
+\})

ale_linters/typescript/tslint.vim

@@ -1,9 +1,11 @@
-" Author: Prashanth Chandra https://github.com/prashcr
+" Author: Prashanth Chandra <https://github.com/prashcr>, Jonathan Clem <https://jclem.net>
 " Description: tslint for TypeScript files
 
 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_ignore_empty_files', 0)
 
 function! ale_linters#typescript#tslint#GetExecutable(buffer) abort
     return ale#node#FindExecutable(a:buffer, 'typescript_tslint', [
@@ -12,44 +14,62 @@ function! ale_linters#typescript#tslint#GetExecutable(buffer) abort
 endfunction
 
 function! ale_linters#typescript#tslint#Handle(buffer, lines) abort
+    " Do not output any errors for empty files if the option is on.
+    if ale#Var(a:buffer, 'typescript_tslint_ignore_empty_files')
+    \&& getbufline(a:buffer, 1, '$') == ['']
+        return []
+    endif
+
+    let l:dir = expand('#' . a:buffer . ':p:h')
     let l:output = []
 
-    for l:error in json_decode(join(a:lines, ''))
+    for l:error in ale#util#FuzzyJSONDecode(a:lines, [])
-        if ale#path#IsBufferPath(a:buffer, l:error.name)
+        if get(l:error, 'ruleName', '') is# 'no-implicit-dependencies'
-            call add(l:output, {
+            continue
-            \   'type': (get(l:error, 'ruleSeverity', '') ==# 'WARNING' ? 'W' : 'E'),
-            \   'text': l:error.failure,
-            \   'lnum': l:error.startPosition.line + 1,
-            \   'col': l:error.startPosition.character + 1,
-            \   'end_lnum': l:error.endPosition.line + 1,
-            \   'end_col': l:error.endPosition.character + 1,
-            \})
         endif
+
+        call add(l:output, {
+        \   'filename': ale#path#GetAbsPath(l:dir, l:error.name),
+        \   'type': (get(l:error, 'ruleSeverity', '') is# 'WARNING' ? 'W' : 'E'),
+        \   'text': has_key(l:error, 'ruleName')
+        \       ? l:error.ruleName . ': ' . l:error.failure
+        \       : l:error.failure,
+        \   'lnum': l:error.startPosition.line + 1,
+        \   'col': l:error.startPosition.character + 1,
+        \   'end_lnum': l:error.endPosition.line + 1,
+        \   'end_col': l:error.endPosition.character + 1,
+        \})
     endfor
 
     return l:output
 endfunction
 
-function! ale_linters#typescript#tslint#BuildLintCommand(buffer) abort
+function! ale_linters#typescript#tslint#GetCommand(buffer) abort
     let l:tslint_config_path = ale#path#ResolveLocalPath(
     \   a:buffer,
     \   'tslint.json',
     \   ale#Var(a:buffer, 'typescript_tslint_config_path')
     \)
-
     let l:tslint_config_option = !empty(l:tslint_config_path)
     \   ? ' -c ' . ale#Escape(l:tslint_config_path)
     \   : ''
 
-    return ale_linters#typescript#tslint#GetExecutable(a:buffer)
+    let l:tslint_rules_dir = ale#Var(a:buffer, 'typescript_tslint_rules_dir')
+    let l:tslint_rules_option = !empty(l:tslint_rules_dir)
+    \  ? ' -r ' . ale#Escape(l:tslint_rules_dir)
+    \  : ''
+
+    return ale#path#BufferCdString(a:buffer)
+    \   . ale_linters#typescript#tslint#GetExecutable(a:buffer)
     \   . ' --format json'
     \   . l:tslint_config_option
+    \   . l:tslint_rules_option
     \   . ' %t'
 endfunction
 
 call ale#linter#Define('typescript', {
 \   'name': 'tslint',
 \   'executable_callback': 'ale_linters#typescript#tslint#GetExecutable',
-\   'command_callback': 'ale_linters#typescript#tslint#BuildLintCommand',
+\   'command_callback': 'ale_linters#typescript#tslint#GetCommand',
 \   'callback': 'ale_linters#typescript#tslint#Handle',
 \})

ale_linters/typescript/tsserver.vim

@@ -5,19 +5,26 @@ call ale#Set('typescript_tsserver_executable', 'tsserver')
 call ale#Set('typescript_tsserver_config_path', '')
 call ale#Set('typescript_tsserver_use_global', 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',
     \])
 endfunction
 
-function! ale_linters#typescript#tsserver#Handle(buffer, lines) abort
-    return a:lines
-endfunction
-
 call ale#linter#Define('typescript', {
 \   'name': 'tsserver',
 \   'lsp': 'tsserver',
 \   'executable_callback': 'ale_linters#typescript#tsserver#GetExecutable',
-\   'callback': 'ale_linters#typescript#tsserver#Handle',
+\   'command_callback': 'ale_linters#typescript#tsserver#GetExecutable',
+\   'project_root_callback': 'ale_linters#typescript#tsserver#GetProjectRoot',
+\   'language_callback': 'ale_linters#typescript#tsserver#GetLanguage',
 \})

ale_linters/verilog/iverilog.vim

@@ -14,7 +14,7 @@ function! ale_linters#verilog#iverilog#Handle(buffer, lines) abort
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
         let l:line = l:match[1] + 0
         let l:type = l:match[2] =~# 'error' ? 'E' : 'W'
-        let l:text = l:match[2] ==# 'syntax error' ? 'syntax error' : l:match[4]
+        let l:text = l:match[2] is# 'syntax error' ? 'syntax error' : l:match[4]
 
         call add(l:output, {
         \   'lnum': l:line,

ale_linters/verilog/verilator.vim

@@ -1,14 +1,22 @@
 " Author: Masahiro H https://github.com/mshr-h
 " Description: verilator for verilog files
 
+" Set this option to change Verilator lint options
+if !exists('g:ale_verilog_verilator_options')
+    let g:ale_verilog_verilator_options = ''
+endif
+
 function! ale_linters#verilog#verilator#GetCommand(buffer) abort
     let l:filename = tempname() . '_verilator_linted.v'
 
     " Create a special filename, so we can detect it in the handler.
     call ale#engine#ManageFile(a:buffer, l:filename)
-    call writefile(getbufline(a:buffer, 1, '$'), l:filename)
+    let l:lines = getbufline(a:buffer, 1, '$')
+    call ale#util#Writefile(a:buffer, l:lines, l:filename)
 
-    return 'verilator --lint-only -Wall -Wno-DECLFILENAME ' . ale#Escape(l:filename)
+    return 'verilator --lint-only -Wall -Wno-DECLFILENAME '
+    \   . ale#Var(a:buffer, 'verilog_verilator_options') .' '
+    \   . ale#Escape(l:filename)
 endfunction
 
 function! ale_linters#verilog#verilator#Handle(buffer, lines) abort
@@ -25,7 +33,7 @@ function! ale_linters#verilog#verilator#Handle(buffer, lines) abort
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
         let l:line = l:match[3] + 0
-        let l:type = l:match[1] ==# 'Error' ? 'E' : 'W'
+        let l:type = l:match[1] is# 'Error' ? 'E' : 'W'
         let l:text = l:match[4]
         let l:file = l:match[2]
 

ale_linters/vim/vint.vim

@@ -36,6 +36,32 @@ function! ale_linters#vim#vint#GetCommand(buffer, version_output) abort
     \   . ' %t'
 endfunction
 
+let s:word_regex_list = [
+\   '\v^Undefined variable: ([^ ]+)',
+\   '\v^Make the scope explicit like ...([^ ]+). ',
+\   '\v^.*start with a capital or contain a colon: ([^ ]+)',
+\   '\v.*instead of .(\=[=~]).',
+\]
+
+function! ale_linters#vim#vint#Handle(buffer, lines) abort
+    let l:loclist = ale#handlers#gcc#HandleGCCFormat(a:buffer, a:lines)
+
+    for l:item in l:loclist
+        let l:match = []
+
+        for l:regex in s:word_regex_list
+            let l:match = matchlist(l:item.text, l:regex)
+
+            if !empty(l:match)
+                let l:item.end_col = l:item.col + len(l:match[1]) - 1
+                break
+            endif
+        endfor
+    endfor
+
+    return l:loclist
+endfunction
+
 call ale#linter#Define('vim', {
 \   'name': 'vint',
 \   'executable': 'vint',
@@ -43,5 +69,5 @@ call ale#linter#Define('vim', {
 \       {'callback': 'ale_linters#vim#vint#VersionCommand', 'output_stream': 'stderr'},
 \       {'callback': 'ale_linters#vim#vint#GetCommand', 'output_stream': 'stdout'},
 \   ],
-\   'callback': 'ale#handlers#gcc#HandleGCCFormat',
+\   'callback': 'ale_linters#vim#vint#Handle',
 \})

ale_linters/yaml/swaglint.vim

@@ -0,0 +1,41 @@
+" Author: Matthew Turland <https://github.com/elazar>
+" 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)
+
+function! ale_linters#yaml#swaglint#GetExecutable(buffer) abort
+    return ale#node#FindExecutable(a:buffer, 'yaml_swaglint', [
+    \   'node_modules/.bin/swaglint',
+    \])
+endfunction
+
+function! ale_linters#yaml#swaglint#GetCommand(buffer) abort
+    return ale_linters#yaml#swaglint#GetExecutable(a:buffer)
+    \    . ' -r compact --stdin'
+endfunction
+
+function! ale_linters#yaml#swaglint#Handle(buffer, lines) abort
+    let l:pattern = ': \([^\s]\+\) @ \(\d\+\):\(\d\+\) - \(.\+\)$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        let l:obj = {
+        \   'type': l:match[1] is# 'error' ? 'E' : 'W',
+        \   'lnum': l:match[2] + 0,
+        \   'col': l:match[3] + 0,
+        \   'text': l:match[4],
+        \}
+
+        call add(l:output, l:obj)
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('yaml', {
+\   'name': 'swaglint',
+\   'executable_callback': 'ale_linters#yaml#swaglint#GetExecutable',
+\   'command_callback': 'ale_linters#yaml#swaglint#GetCommand',
+\   'callback': 'ale_linters#yaml#swaglint#Handle',
+\})

ale_linters/yaml/yamllint.vim

@@ -33,7 +33,7 @@ function! ale_linters#yaml#yamllint#Handle(buffer, lines) abort
         \   'lnum': l:line,
         \   'col': l:col,
         \   'text': l:text,
-        \   'type': l:type ==# 'error' ? 'E' : 'W',
+        \   'type': l:type is# 'error' ? 'E' : 'W',
         \})
     endfor
 

autoload/ale.vim

@@ -5,6 +5,31 @@
 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
@@ -13,39 +38,93 @@ function! ale#FileTooLarge() abort
     return l:max > 0 ? (line2byte(line('$') + 1) > l:max) : 0
 endfunction
 
+let s:getcmdwintype_exists = exists('*getcmdwintype')
+
 " A function for checking various conditions whereby ALE just shouldn't
 " attempt to do anything, say if particular buffer types are open in Vim.
-function! ale#ShouldDoNothing() abort
+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.
+
+    " 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
-    " OR if ALE is running in the sandbox
+    if index(g:ale_filetype_blacklist, getbufvar(a:buffer, '&filetype')) >= 0
-    return index(g:ale_filetype_blacklist, &filetype) >= 0
+        return 1
-    \   || (exists('*getcmdwintype') && !empty(getcmdwintype()))
+    endif
-    \   || ale#util#InSandbox()
+
-    \   || !ale#Var(bufnr(''), 'enabled')
+    " Do nothing if running from command mode
-    \   || ale#FileTooLarge()
+    if s:getcmdwintype_exists && !empty(getcmdwintype())
+        return 1
+    endif
+
+    let l:filename = fnamemodify(bufname(a:buffer), ':t')
+
+    if l:filename is# '.'
+        return 1
+    endif
+
+    " 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()
+        return 1
+    endif
+
+    " Do nothing from CtrlP buffers with CtrlP-funky.
+    if exists(':CtrlPFunky') is 2
+    \&& getbufvar(a:buffer, '&l:statusline') =~# 'CtrlPMode.*funky'
+        return 1
+    endif
+
+    return 0
 endfunction
 
-" (delay, [linting_flag])
+" (delay, [linting_flag, buffer_number])
 function! ale#Queue(delay, ...) abort
-    if len(a:0) > 1
+    if a:0 > 2
         throw 'too many arguments!'
     endif
 
     " Default linting_flag to ''
     let l:linting_flag = get(a:000, 0, '')
+    let l:buffer = get(a:000, 1, bufnr(''))
 
-    if l:linting_flag !=# '' && l:linting_flag !=# 'lint_file'
+    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'
         throw "linting_flag must be either '' or 'lint_file'"
     endif
 
-    if ale#ShouldDoNothing()
+    if type(a:buffer) != type(0)
+        throw 'buffer_number must be a Number'
+    endif
+
+    if ale#ShouldDoNothing(a: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 l:linting_flag ==# 'lint_file'
+    if a:linting_flag is# 'lint_file'
-        let s:should_lint_file_for_buffer[bufnr('%')] = 1
+        let s:should_lint_file_for_buffer[a:buffer] = 1
     endif
 
     if s:lint_timer != -1
@@ -53,63 +132,63 @@ function! ale#Queue(delay, ...) abort
         let s:lint_timer = -1
     endif
 
-    let l:linters = ale#linter#Get(&filetype)
+    let l:linters = ale#linter#Get(getbufvar(a:buffer, '&filetype'))
-    if len(l:linters) == 0
+
-        " There are no linters to lint with, so stop here.
+    " 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)
+        endif
+
         return
     endif
 
     if a:delay > 0
-        let s:queued_buffer_number = bufnr('%')
+        let s:queued_buffer_number = a:buffer
         let s:lint_timer = timer_start(a:delay, function('ale#Lint'))
     else
-        call ale#Lint()
+        call ale#Lint(-1, a:buffer)
     endif
 endfunction
 
 function! ale#Lint(...) abort
-    if ale#ShouldDoNothing()
+    if a:0 > 1
+        " Use the buffer number given as the optional second argument.
+        let l:buffer = a:2
+    elseif a:0 > 0 && a:1 == s:lint_timer
+        " Use the buffer number for the buffer linting was queued for.
+        let l:buffer = s:queued_buffer_number
+    else
+        " Use the current buffer number.
+        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)
         return
     endif
 
-    " Get the buffer number linting was queued for.
-    " or else take the current one.
-    let l:buffer = len(a:0) > 1 && a:1 == s:lint_timer
-    \   ? s:queued_buffer_number
-    \   : bufnr('%')
-
     " Use the filetype from the buffer
-    let l:linters = ale#linter#Get(getbufvar(l:buffer, '&filetype'))
+    let l:linters = ale#linter#Get(getbufvar(a:buffer, '&filetype'))
     let l:should_lint_file = 0
 
     " Check if we previously requested checking the file.
-    if has_key(s:should_lint_file_for_buffer, l:buffer)
+    if has_key(s:should_lint_file_for_buffer, a:buffer)
-        unlet s:should_lint_file_for_buffer[l:buffer]
+        unlet s:should_lint_file_for_buffer[a:buffer]
         " Lint files if they exist.
-        let l:should_lint_file = filereadable(expand('#' . l:buffer . ':p'))
+        let l:should_lint_file = filereadable(expand('#' . a:buffer . ':p'))
     endif
 
-    " Initialise the buffer information if needed.
+    call ale#engine#RunLinters(a:buffer, l:linters, l:should_lint_file)
-    call ale#engine#InitBufferInfo(l:buffer)
-
-    " Clear the new loclist again, so we will work with all new items.
-    let g:ale_buffer_info[l:buffer].new_loclist = []
-
-    if l:should_lint_file
-        " Clear loclist items for files if we are checking files again.
-        let g:ale_buffer_info[l:buffer].lint_file_loclist = []
-    else
-        " Otherwise, don't run any `lint_file` linters
-        " We will continue running any linters which are currently checking
-        " the file, and the items will be mixed together with any new items.
-        call filter(l:linters, '!v:val.lint_file')
-    endif
-
-    call ale#engine#StopCurrentJobs(l:buffer, l:should_lint_file)
-
-    for l:linter in l:linters
-        call ale#engine#Invoke(l:buffer, l:linter)
-    endfor
 endfunction
 
 " Reset flags indicating that files should be checked for all buffers.
@@ -117,6 +196,10 @@ 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
@@ -159,7 +242,7 @@ endfunction
 " Escape a string suitably for each platform.
 " shellescape does not work on Windows.
 function! ale#Escape(str) abort
-    if fnamemodify(&shell, ':t') ==? 'cmd.exe'
+    if fnamemodify(&shell, ':t') is? 'cmd.exe'
         " If the string contains spaces, it will be surrounded by quotes.
         " Otherwise, special characters will be escaped with carets (^).
         return substitute(

autoload/ale/balloon.vim

@@ -3,7 +3,7 @@
 
 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:lnum, a:col)
+    let l:index = ale#util#BinarySearch(l:loclist, a:bufnr, a:lnum, a:col)
 
     return l:index >= 0 ? l:loclist[l:index].text : ''
 endfunction