Fix #2276 - Replace a potentially infinite loop for hie

Fix #2263 - detailed Flow errors should show the original message
Fix #2192 - Handle more ignore-pattern messages for ESLint
2025-12-06 20:54:26 +08:00 · 2019-02-07 16:26:04 +00:00 · 2019-02-01 13:04:18 +00:00 · 2019-01-27 12:10:03 +00:00 · 2018-12-18 10:20:44 +00:00 · 2018-12-16 13:18:51 +00:00
669 changed files with 4592 additions and 17674 deletions
--- a/.github/ISSUE_TEMPLATE/report-a-bug.md
+++ b/.github/ISSUE_TEMPLATE/report-a-bug.md
@@ -27,9 +27,8 @@ Operating System: <!-- Describe your operating system version. -->

 <!-- Describe what went wrong here. Be specific. -->

-Something went wrong in specifically this place, and I also searched through both open and closed issues for the same problem before reporting a bug here.
-
-Are you having trouble configuring ALE? Try asking for help on [Stack Exchange](https://vi.stackexchange.com/) or perhaps on [Reddit](https://www.reddit.com/r/vim/) instead. The GitHub issue tracker should be used for reporting bugs or asking for new features.
+Something went wrong in specifically this place, and I also searched through
+both open and closed issues for the same problem before reporting a bug here.

 ## Reproducing the bug

--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -2,7 +2,7 @@
 Before creating a pull request, do the following.

 * Read the Contributing guide linked above first.
-* Read the documentation that comes with ALE with `:help ale-dev`.
+* Read the documentation that comes with ALE with `:help ale-development`.

 Have fun!
 -->
@@ -10,4 +10,4 @@ Have fun!
 Where are the tests? Have you added tests? Have you updated the tests? Read the
 comment above and the documentation referenced in it first. Write tests!

-Seriously, read `:help ale-dev` and write tests.
+Seriously, read `:help ale-development` and write tests.
--- a/.gitignore
+++ b/.gitignore
@@ -1,10 +1,6 @@
 !.editorconfig
 *.obj
-# Ignore all hidden files everywhere.
-# Use `git add -f` to add hidden files.
 .*
-__pycache__
-*.pyc
 /doc/tags
 /init.vim
 /test/ale-info-test-file
--- a/4
+++ b/4
@@ -1,9 +1,9 @@
 FROM tweekmonster/vim-testbed:latest

 RUN install_vim -tag v8.0.0027 -build \
-                -tag v8.1.0519 -build \
+                -tag v8.1.0204 -build \
                -tag neovim:v0.2.0 -build \
-                -tag neovim:v0.3.5 -build
+                -tag neovim:v0.3.0 -build

 ENV PACKAGES="\
    bash \
--- a/2
+++ b/2
@@ -1,4 +1,4 @@
-Copyright (c) 2016-2019, w0rp <devw0rp@gmail.com>
+Copyright (c) 2016-2018, w0rp <devw0rp@gmail.com>
 All rights reserved.

 Redistribution and use in source and binary forms, with or without
--- a/README.md
+++ b/README.md
@@ -1,13 +1,13 @@
-# Asynchronous Lint Engine [![Travis CI Build Status](https://travis-ci.com/w0rp/ale.svg?branch=master)](https://travis-ci.com/w0rp/ale) [![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/r0ef1xu8xjmik58d/branch/master?svg=true)](https://ci.appveyor.com/project/w0rp/ale) [![Join the chat at https://gitter.im/vim-ale/Lobby](https://badges.gitter.im/vim-ale/Lobby.svg)](https://gitter.im/vim-ale/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+# 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/r0ef1xu8xjmik58d/branch/master?svg=true)](https://ci.appveyor.com/project/w0rp/ale)


-![ALE Logo by Mark Grealish - https://www.bhalash.com/](https://user-images.githubusercontent.com/3518142/59195920-2c339500-8b85-11e9-9c22-f6b7f69637b8.jpg)
+![ALE Logo by Mark Grealish - https://www.bhalash.com/](img/logo.jpg?raw=true)

-ALE (Asynchronous Lint Engine) is a plugin providing linting (syntax checking
-and semantic errors) in NeoVim 0.2.0+ and Vim 8 while you edit your text files,
-and acts as a Vim [Language Server Protocol](https://langserver.org/) client.
+ALE (Asynchronous Lint Engine) is a plugin for providing linting in NeoVim
+0.2.0+ and Vim 8 while you edit your text files, and acts as a Vim
+[Language Server Protocol](https://langserver.org/) client.

-<img src="https://user-images.githubusercontent.com/3518142/59195938-3a81b100-8b85-11e9-8e8d-6a601b1db908.gif" alt="A linting example with the darkspectrum color scheme in GVim." title="A linting example with the darkspectrum color scheme in GVim.">
+<img src="img/example.gif?raw=true" alt="A linting example with the darkspectrum color scheme in GVim." title="A linting example with the darkspectrum color scheme in GVim.">

 ALE makes use of NeoVim and Vim 8 job control functions and timers to
 run linters on the contents of text buffers and return errors as
@@ -26,7 +26,7 @@ features, including:

 * Diagnostics (via Language Server Protocol linters)
 * Go To Definition (`:ALEGoToDefinition`)
-* Completion (Built in completion support, or with Deoplete)
+* Completion (`let g:ale_completion_enabled = 1` before ALE is loaded)
 * Finding references (`:ALEFindReferences`)
 * Hover information (`:ALEHover`)
 * Symbol search (`:ALESymbolSearch`)
@@ -73,15 +73,140 @@ other content at [w0rp.com](https://w0rp.com).
    15. [How can I configure my C or C++ project?](#faq-c-configuration)
    16. [How can I configure ALE differently for different buffers?](#faq-buffer-configuration)
    17. [How can I configure the height of the list in which ALE displays errors?](#faq-list-window-height)
-    18. [How can I see what ALE has configured for the current file?](#faq-get-info)

 <a name="supported-languages"></a>

 ## 1. Supported Languages and Tools

-ALE supports a wide variety of languages and tools. See the
-[full list](supported-tools.md) in the
-[Supported Languages and Tools](supported-tools.md) page.
+This plugin supports the following languages and tools. All available
+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 |
+| -------- | ----- |
+| Ada | [gcc](https://gcc.gnu.org) |
+| ASM | [gcc](https://gcc.gnu.org) |
+| Ansible | [ansible-lint](https://github.com/willthames/ansible-lint) |
+| API Blueprint | [drafter](https://github.com/apiaryio/drafter) |
+| AsciiDoc | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [redpen](http://redpen.cc/), [write-good](https://github.com/btford/write-good), [vale](https://github.com/ValeLint/vale) |
+| Awk | [gawk](https://www.gnu.org/software/gawk/)|
+| Bash | [language-server](https://github.com/mads-hartmann/bash-language-server), shell [-n flag](https://www.gnu.org/software/bash/manual/bash.html#index-set), [shellcheck](https://www.shellcheck.net/), [shfmt](https://github.com/mvdan/sh) |
+| Bourne Shell | shell [-n flag](http://linux.die.net/man/1/sh), [shellcheck](https://www.shellcheck.net/), [shfmt](https://github.com/mvdan/sh) |
+| C | [cppcheck](http://cppcheck.sourceforge.net), [cpplint](https://github.com/google/styleguide/tree/gh-pages/cpplint), [clang](http://clang.llvm.org/), [clangd](https://clang.llvm.org/extra/clangd.html), [clangtidy](http://clang.llvm.org/extra/clang-tidy/) !!, [clang-format](https://clang.llvm.org/docs/ClangFormat.html), [cquery](https://github.com/cquery-project/cquery), [flawfinder](https://www.dwheeler.com/flawfinder/), [gcc](https://gcc.gnu.org/), [uncrustify](https://github.com/uncrustify/uncrustify), [ccls](https://github.com/MaskRay/ccls) |
+| C++ (filetype cpp) | [clang](http://clang.llvm.org/), [clangd](https://clang.llvm.org/extra/clangd.html), [clangcheck](http://clang.llvm.org/docs/ClangCheck.html) !!, [clangtidy](http://clang.llvm.org/extra/clang-tidy/) !!, [clang-format](https://clang.llvm.org/docs/ClangFormat.html), [clazy](https://github.com/KDE/clazy) !!, [cppcheck](http://cppcheck.sourceforge.net), [cpplint](https://github.com/google/styleguide/tree/gh-pages/cpplint) !!, [cquery](https://github.com/cquery-project/cquery), [flawfinder](https://www.dwheeler.com/flawfinder/), [gcc](https://gcc.gnu.org/), [uncrustify](https://github.com/uncrustify/uncrustify), [ccls](https://github.com/MaskRay/ccls) |
+| 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, [uncrustify](https://github.com/uncrustify/uncrustify) |
+| Chef | [foodcritic](http://www.foodcritic.io/) |
+| Clojure | [joker](https://github.com/candid82/joker) |
+| CloudFormation | [cfn-python-lint](https://github.com/awslabs/cfn-python-lint) |
+| CMake | [cmakelint](https://github.com/richq/cmake-lint) |
+| CoffeeScript | [coffee](http://coffeescript.org/), [coffeelint](https://www.npmjs.com/package/coffeelint) |
+| Crystal | [crystal](https://crystal-lang.org/) !! |
+| CSS | [csslint](http://csslint.net/), [prettier](https://github.com/prettier/prettier), [stylelint](https://github.com/stylelint/stylelint) |
+| Cucumber | [cucumber](https://cucumber.io/) |
+| Cython (pyrex filetype) | [cython](http://cython.org/) |
+| D | [dls](https://github.com/d-language-server/dls), [dmd](https://dlang.org/dmd-linux.html), [uncrustify](https://github.com/uncrustify/uncrustify) |
+| Dafny | [dafny](https://rise4fun.com/Dafny) !! |
+| Dart | [dartanalyzer](https://github.com/dart-lang/sdk/tree/master/pkg/analyzer_cli) !!, [language_server](https://github.com/natebosch/dart_language_server), [dartfmt](https://github.com/dart-lang/sdk/tree/master/utils/dartfmt) |
+| Dockerfile | [dockerfile_lint](https://github.com/projectatomic/dockerfile_lint), [hadolint](https://github.com/hadolint/hadolint) |
+| Elixir | [credo](https://github.com/rrrene/credo), [dialyxir](https://github.com/jeremyjh/dialyxir), [dogma](https://github.com/lpil/dogma), [mix](https://hexdocs.pm/mix/Mix.html) !!, [elixir-ls](https://github.com/JakeBecker/elixir-ls) |
+| Elm | [elm-format](https://github.com/avh4/elm-format), [elm-make](https://github.com/elm-lang/elm-make) |
+| Erb | [erb](https://apidock.com/ruby/ERB), [erubi](https://github.com/jeremyevans/erubi), [erubis](https://github.com/kwatch/erubis), [ruumba](https://github.com/ericqweinstein/ruumba) |
+| Erlang | [erlc](http://erlang.org/doc/man/erlc.html), [SyntaxErl](https://github.com/ten0s/syntaxerl) |
+| Fish | fish [-n flag](https://linux.die.net/man/1/fish)
+| Fortran | [gcc](https://gcc.gnu.org/), [language_server](https://github.com/hansec/fortran-language-server) |
+| Fountain | [proselint](http://proselint.com/) |
+| FusionScript | [fusion-lint](https://github.com/RyanSquared/fusionscript) |
+| Git Commit Messages | [gitlint](https://github.com/jorisroovers/gitlint) |
+| GLSL | [glslang](https://github.com/KhronosGroup/glslang), [glslls](https://github.com/svenstaro/glsl-language-server) |
+| Go | [gofmt](https://golang.org/cmd/gofmt/), [goimports](https://godoc.org/golang.org/x/tools/cmd/goimports), [go mod](https://golang.org/cmd/go/) !!, [go vet](https://golang.org/cmd/vet/) !!, [golint](https://godoc.org/github.com/golang/lint), [gotype](https://godoc.org/golang.org/x/tools/cmd/gotype) !!, [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) !!, [golangserver](https://github.com/sourcegraph/go-langserver), [golangci-lint](https://github.com/golangci/golangci-lint) !! |
+| GraphQL | [eslint](http://eslint.org/), [gqlint](https://github.com/happylinks/gqlint), [prettier](https://github.com/prettier/prettier) |
+| Hack | [hack](http://hacklang.org/), [hackfmt](https://github.com/facebook/hhvm/tree/master/hphp/hack/hackfmt), [hhast](https://github.com/hhvm/hhast) (disabled by default; see `:help ale-integration-hack`) |
+| Haml | [haml-lint](https://github.com/brigade/haml-lint) |
+| Handlebars | [ember-template-lint](https://github.com/rwjblue/ember-template-lint) |
+| Haskell | [brittany](https://github.com/lspitzner/brittany), [ghc](https://www.haskell.org/ghc/), [cabal-ghc](https://www.haskell.org/cabal/), [stylish-haskell](https://github.com/jaspervdj/stylish-haskell), [stack-ghc](https://haskellstack.org/), [stack-build](https://haskellstack.org/) !!, [ghc-mod](https://github.com/DanielG/ghc-mod), [hlint](https://hackage.haskell.org/package/hlint), [hdevtools](https://hackage.haskell.org/package/hdevtools), [hfmt](https://github.com/danstiner/hfmt), [hie](https://github.com/haskell/haskell-ide-engine) |
+| HCL | [terraform-fmt](https://github.com/hashicorp/terraform) |
+| HTML | [alex](https://github.com/wooorm/alex) !!, [HTMLHint](http://htmlhint.com/), [proselint](http://proselint.com/), [tidy](http://www.html-tidy.org/), [prettier](https://github.com/prettier/prettier), [write-good](https://github.com/btford/write-good) |
+| Idris | [idris](http://www.idris-lang.org/) |
+| ISPC | [ispc](https://ispc.github.io/) !! |
+| Java | [checkstyle](http://checkstyle.sourceforge.net), [javac](http://www.oracle.com/technetwork/java/javase/downloads/index.html), [google-java-format](https://github.com/google/google-java-format), [PMD](https://pmd.github.io/), [javalsp](https://github.com/georgewfraser/vscode-javac), [uncrustify](https://github.com/uncrustify/uncrustify) |
+| JavaScript | [eslint](http://eslint.org/), [flow](https://flowtype.org/), [jscs](http://jscs.info/), [jshint](http://jshint.com/), [prettier](https://github.com/prettier/prettier), [prettier-eslint](https://github.com/prettier/prettier-eslint-cli), [prettier-standard](https://github.com/sheerun/prettier-standard), [standard](http://standardjs.com/), [xo](https://github.com/sindresorhus/xo)
+| JSON | [fixjson](https://github.com/rhysd/fixjson), [jsonlint](http://zaa.ch/jsonlint/), [jq](https://stedolan.github.io/jq/), [prettier](https://github.com/prettier/prettier) |
+| Julia | [languageserver](https://github.com/JuliaEditorSupport/LanguageServer.jl) |
+| Kotlin | [kotlinc](https://kotlinlang.org) !!, [ktlint](https://ktlint.github.io) !!, [languageserver](https://github.com/fwcd/KotlinLanguageServer) see `:help ale-integration-kotlin` for configuration instructions |
+| LaTeX | [alex](https://github.com/wooorm/alex) !!, [chktex](http://www.nongnu.org/chktex/), [lacheck](https://www.ctan.org/pkg/lacheck), [proselint](http://proselint.com/), [redpen](http://redpen.cc/), [vale](https://github.com/ValeLint/vale), [write-good](https://github.com/btford/write-good) |
+| Less | [lessc](https://www.npmjs.com/package/less), [prettier](https://github.com/prettier/prettier), [stylelint](https://github.com/stylelint/stylelint) |
+| LLVM | [llc](https://llvm.org/docs/CommandGuide/llc.html) |
+| Lua | [luac](https://www.lua.org/manual/5.1/luac.html), [luacheck](https://github.com/mpeterv/luacheck) |
+| Mail | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [vale](https://github.com/ValeLint/vale) |
+| Make | [checkmake](https://github.com/mrtazz/checkmake) |
+| Markdown | [alex](https://github.com/wooorm/alex) !!, [markdownlint](https://github.com/DavidAnson/markdownlint) !!, [mdl](https://github.com/mivok/markdownlint), [prettier](https://github.com/prettier/prettier), [proselint](http://proselint.com/), [redpen](http://redpen.cc/), [remark-lint](https://github.com/wooorm/remark-lint), [textlint](https://textlint.github.io/), [vale](https://github.com/ValeLint/vale), [write-good](https://github.com/btford/write-good) |
+| MATLAB | [mlint](https://www.mathworks.com/help/matlab/ref/mlint.html) |
+| Mercury | [mmc](http://mercurylang.org) !! |
+| NASM | [nasm](https://www.nasm.us/) !! |
+| Nim | [nim check](https://nim-lang.org/docs/nimc.html) !! |
+| nix | [nix-instantiate](http://nixos.org/nix/manual/#sec-nix-instantiate) |
+| nroff | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [write-good](https://github.com/btford/write-good)|
+| Objective-C | [clang](http://clang.llvm.org/), [clangd](https://clang.llvm.org/extra/clangd.html), [uncrustify](https://github.com/uncrustify/uncrustify), [ccls](https://github.com/MaskRay/ccls) |
+| Objective-C++ | [clang](http://clang.llvm.org/), [clangd](https://clang.llvm.org/extra/clangd.html), [uncrustify](https://github.com/uncrustify/uncrustify) |
+| OCaml | [merlin](https://github.com/the-lambda-church/merlin) see `:help ale-ocaml-merlin` for configuration instructions, [ols](https://github.com/freebroccolo/ocaml-language-server), [ocamlformat](https://github.com/ocaml-ppx/ocamlformat) |
+| Pawn | [uncrustify](https://github.com/uncrustify/uncrustify) |
+| Perl | [perl -c](https://perl.org/), [perl-critic](https://metacpan.org/pod/Perl::Critic), [perltidy](https://metacpan.org/pod/distribution/Perl-Tidy/bin/perltidy) |
+| Perl6 | [perl6 -c](https://perl6.org) |
+| PHP | [langserver](https://github.com/felixfbecker/php-language-server), [phan](https://github.com/phan/phan) see `:help ale-php-phan` to instructions, [php -l](https://secure.php.net/), [phpcs](https://github.com/squizlabs/PHP_CodeSniffer), [phpmd](https://phpmd.org), [phpstan](https://github.com/phpstan/phpstan), [phpcbf](https://github.com/squizlabs/PHP_CodeSniffer), [php-cs-fixer](http://cs.sensiolabs.org/), [psalm](https://getpsalm.org) !!  |
+| PO | [alex](https://github.com/wooorm/alex) !!, [msgfmt](https://www.gnu.org/software/gettext/manual/html_node/msgfmt-Invocation.html), [proselint](http://proselint.com/), [write-good](https://github.com/btford/write-good) |
+| Pod | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [write-good](https://github.com/btford/write-good) |
+| Pony | [ponyc](https://github.com/ponylang/ponyc) |
+| Prolog | [swipl](https://github.com/SWI-Prolog/swipl-devel) |
+| proto | [protoc-gen-lint](https://github.com/ckaznocha/protoc-gen-lint) |
+| Pug | [pug-lint](https://github.com/pugjs/pug-lint) |
+| Puppet | [languageserver](https://github.com/lingua-pupuli/puppet-editor-services), [puppet](https://puppet.com), [puppet-lint](https://puppet-lint.com) |
+| Python | [autopep8](https://github.com/hhatto/autopep8), [black](https://github.com/ambv/black), [flake8](http://flake8.pycqa.org/en/latest/), [isort](https://github.com/timothycrosley/isort), [mypy](http://mypy-lang.org/), [prospector](https://github.com/PyCQA/prospector), [pycodestyle](https://github.com/PyCQA/pycodestyle), [pyls](https://github.com/palantir/python-language-server), [pyre](https://github.com/facebook/pyre-check), [pylint](https://www.pylint.org/) !!, [vulture](https://github.com/jendrikseipp/vulture) !!, [yapf](https://github.com/google/yapf) |
+| QML | [qmlfmt](https://github.com/jesperhh/qmlfmt), [qmllint](https://github.com/qt/qtdeclarative/tree/5.11/tools/qmllint) |
+| R | [lintr](https://github.com/jimhester/lintr) |
+| ReasonML | [merlin](https://github.com/the-lambda-church/merlin) see `:help ale-reasonml-ols` for configuration instructions, [ols](https://github.com/freebroccolo/ocaml-language-server), [refmt](https://github.com/reasonml/reason-cli) |
+| reStructuredText | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [redpen](http://redpen.cc/), [rstcheck](https://github.com/myint/rstcheck), [vale](https://github.com/ValeLint/vale), [write-good](https://github.com/btford/write-good) |
+| Re:VIEW | [redpen](http://redpen.cc/) |
+| RPM spec | [rpmlint](https://github.com/rpm-software-management/rpmlint) (disabled by default; see `:help ale-integration-spec`) |
+| 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), [rufo](https://github.com/ruby-formatter/rufo), [solargraph](https://solargraph.org) |
+| Rust |  [cargo](https://github.com/rust-lang/cargo) !! (see `:help ale-integration-rust` for configuration instructions), [rls](https://github.com/rust-lang-nursery/rls), [rustc](https://www.rust-lang.org/), [rustfmt](https://github.com/rust-lang-nursery/rustfmt) |
+| SASS | [sass-lint](https://www.npmjs.com/package/sass-lint), [stylelint](https://github.com/stylelint/stylelint) |
+| SCSS | [prettier](https://github.com/prettier/prettier), [sass-lint](https://www.npmjs.com/package/sass-lint), [scss-lint](https://github.com/brigade/scss-lint), [stylelint](https://github.com/stylelint/stylelint) |
+| Scala | [fsc](https://www.scala-lang.org/old/sites/default/files/linuxsoft_archives/docu/files/tools/fsc.html), [sbtserver](https://www.scala-sbt.org/1.x/docs/sbt-server.html), [scalac](http://scala-lang.org), [scalafmt](https://scalameta.org/scalafmt/), [scalastyle](http://www.scalastyle.org)|
+| Slim | [slim-lint](https://github.com/sds/slim-lint) |
+| SML | [smlnj](http://www.smlnj.org/) |
+| Solidity | [solhint](https://github.com/protofire/solhint), [solium](https://github.com/duaraghav8/Solium) |
+| Stylus | [stylelint](https://github.com/stylelint/stylelint) |
+| SQL | [sqlint](https://github.com/purcell/sqlint), [sqlfmt](https://github.com/jackc/sqlfmt) |
+| Swift | [swiftlint](https://github.com/realm/SwiftLint), [swiftformat](https://github.com/nicklockwood/SwiftFormat) |
+| Tcl | [nagelfar](http://nagelfar.sourceforge.net) !! |
+| Terraform | [fmt](https://github.com/hashicorp/terraform), [tflint](https://github.com/wata727/tflint) |
+| Texinfo | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [write-good](https://github.com/btford/write-good)|
+| Text^ | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [redpen](http://redpen.cc/), [textlint](https://textlint.github.io/), [vale](https://github.com/ValeLint/vale), [write-good](https://github.com/btford/write-good) |
+| Thrift | [thrift](http://thrift.apache.org/) |
+| TypeScript | [eslint](http://eslint.org/), [prettier](https://github.com/prettier/prettier), [tslint](https://github.com/palantir/tslint), [tsserver](https://github.com/Microsoft/TypeScript/wiki/Standalone-Server-%28tsserver%29), typecheck |
+| VALA | [uncrustify](https://github.com/uncrustify/uncrustify) |
+| 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^ | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [write-good](https://github.com/btford/write-good) |
+| Vue | [prettier](https://github.com/prettier/prettier), [vls](https://github.com/vuejs/vetur/tree/master/server) |
+| XHTML | [alex](https://github.com/wooorm/alex) !!, [proselint](http://proselint.com/), [write-good](https://github.com/btford/write-good) |
+| XML | [xmllint](http://xmlsoft.org/xmllint.html) |
+| YAML | [prettier](https://github.com/prettier/prettier), [swaglint](https://github.com/byCedric/swaglint), [yamllint](https://yamllint.readthedocs.io/) |
+| YANG | [yang-lsp](https://github.com/theia-ide/yang-lsp) |

 <a name="usage"></a>

@@ -101,7 +226,7 @@ new buffers or as you make edits to your files.
 The behaviour of linting can be configured with a variety of options,
 documented in [the Vim help file](doc/ale.txt). For more information on the
 options ALE offers, consult `:help ale-options` for global options and `:help
-ale-integration-options` for options specified to particular linters.
+ale-linter-options` for options specified to particular linters.

 <a name="usage-fixing"></a>

@@ -159,36 +284,12 @@ 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 from `tsserver` for TypeScript.

-ALE integrates with [Deoplete](https://github.com/Shougo/deoplete.nvim) as a
-completion source, named `'ale'`. You can configure Deoplete to only use ALE as
-the source of completion information, or mix it with other sources.
-
-```vim
-" Use ALE and also some plugin 'foobar' as completion sources for all code.
-call deoplete#custom#option('sources', {
-\ '_': ['ale', 'foobar'],
-\})
-```
-
-ALE also offers its own automatic completion support, which does not require any
-other plugins, and can be enabled by changing a setting before ALE is loaded.
-
 ```vim
 " Enable completion where available.
 " This setting must be set before ALE is loaded.
-"
-" You should not turn this setting on if you wish to use ALE as a completion
-" source for other completion plugins, like Deoplete.
 let g:ale_completion_enabled = 1
 ```

-ALE provides an omni-completion function you can use for triggering
-completion manually with `<C-x><C-o>`.
-
-```vim
-set omnifunc=ale#completion#OmniFunc
-```
-
 See `:help ale-completion` for more information.

 <a name="usage-go-to-definition"></a>
@@ -258,14 +359,14 @@ any other tools. Simply clone the plugin into your `pack` directory.

 ```bash
 mkdir -p ~/.vim/pack/git-plugins/start
-git clone --depth 1 https://github.com/w0rp/ale.git ~/.vim/pack/git-plugins/start/ale
+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 --depth 1 https://github.com/w0rp/ale.git ~/.local/share/nvim/site/pack/git-plugins/start/ale
+git clone https://github.com/w0rp/ale.git ~/.local/share/nvim/site/pack/git-plugins/start/ale
 ```

 #### Vim 8 on Windows
@@ -273,7 +374,7 @@ git clone --depth 1 https://github.com/w0rp/ale.git ~/.local/share/nvim/site/pac
 ```bash
 # Run these commands in the "Git for Windows" Bash terminal
 mkdir -p ~/vimfiles/pack/git-plugins/start
-git clone --depth 1 https://github.com/w0rp/ale.git ~/vimfiles/pack/git-plugins/start/ale
+git clone https://github.com/w0rp/ale.git ~/vimfiles/pack/git-plugins/start/ale
 ```

 #### Generating Vim help files
@@ -473,16 +574,8 @@ let g:airline#extensions#ale#enabled = 1
 ```

 If you don't want to use vim-airline, you can implement your own statusline
-function without adding any other plugins. ALE provides some functions to
-assist in this endeavour, including:
-
-* `ale#statusline#Count`: Which returns the number of problems found by ALE
-  for a specified buffer.
-* `ale#statusline#FirstProblem`: Which returns a dictionary containing the
-  full loclist details of the first problem of a specified type found by ALE
-  in a buffer. (e.g. The first style warning in the current buffer.)
-  This can be useful for displaying more detailed information such as the
-  line number of the first problem in a file.
+function without adding any other plugins. ALE provides a function for counting
+the number of problems for this purpose, named `ale#statusline#Count`.

 Say you want to display all errors as one figure, and all non-errors as another
 figure. You can do the following:
@@ -504,8 +597,7 @@ endfunction
 set statusline=%{LinterStatus()}
 ```

-See `:help ale#statusline#Count()` or `:help ale#statusline#FirstProblem()`
-for more information.
+See `:help ale#statusline#Count()` for more information.

 <a name="faq-lightline"></a>

@@ -527,7 +619,7 @@ There are 3 global options that allow customizing the echoed message.
    * `%...code...%` is an optional error code, and most characters can be
      written between the `%` characters.
    * `%linter%` is the linter name
-    * `%severity%` is the severity type
+    * `%severity` is the severity type
 - `g:ale_echo_msg_error_str` is the string used for error severity.
 - `g:ale_echo_msg_warning_str` is the string used for warning severity.

@@ -541,7 +633,7 @@ let g:ale_echo_msg_format = '[%linter%] %s [%severity%]'

 Will give you:

-![Echoed message](https://user-images.githubusercontent.com/3518142/59195927-348bd000-8b85-11e9-88b6-508a094f1548.png)
+![Echoed message](img/echo.png)

 See `:help g:ale_echo_msg_format` for more information.

@@ -667,7 +759,7 @@ Or if you want, you can configure the linters from your vimrc file.

 ```vim
 " In ~/.vim/vimrc, or somewhere similar.
-let g:ale_linter_aliases = {'jsx': ['css', 'javascript']}
+let g:ale_linter_aliases = {'jsx': ['css, 'javascript']}
 let g:ale_linters = {'jsx': ['stylelint', 'eslint']}
 ```

@@ -722,10 +814,11 @@ while you type. ALE uses a timeout which is cancelled and reset every time you
 type, and this delay can be increased so linters are run less often. See
 `:help g:ale_lint_delay` for more information.

-If you don't wish to run linters while you type, you can disable that behaviour.
-Set `g:ale_lint_on_text_changed` to `never`. You won't get as frequent error
-checking, but ALE shouldn't block your ability to edit a document after you save
-a file, so the asynchronous nature of the plugin will still be an advantage.
+If you don't wish to run linters while you type, you can disable that
+behaviour. Set `g:ale_lint_on_text_changed` to `never` or `normal`. You won't
+get as frequent error checking, but ALE shouldn't block your ability to edit a
+document after you save a file, so the asynchronous nature of the plugin will
+still be an advantage.

 If you are still concerned, you can turn the automatic linting off altogether,
 including the option `g:ale_lint_on_enter`, and you can run ALE manually with
@@ -803,13 +896,3 @@ To set a default height for the error list, use the `g:ale_list_window_size` var
 " Show 5 lines of errors (default: 10)
 let g:ale_list_window_size = 5
 ```
-
-<a name="faq-get-info"></a>
-
-### 5.xviii. How can I see what ALE has configured for the current file?
-
-Run the following to see what is currently configured:
-
-```vim
-:ALEInfo
-```
--- a/ale_linters/ada/gcc.vim
+++ b/ale_linters/ada/gcc.vim
@@ -12,7 +12,7 @@ function! ale_linters#ada#gcc#GetCommand(buffer) abort
    " the .ali file may be created even if no code generation is attempted.
    " The output file name must match the source file name (except for the
    " extension), so here we cannot use the null file as output.
-    let l:tmp_dir = fnamemodify(ale#command#CreateDirectory(a:buffer), ':p')
+    let l:tmp_dir = fnamemodify(ale#engine#CreateDirectory(a:buffer), ':p')
    let l:out_file = l:tmp_dir . fnamemodify(bufname(a:buffer), ':t:r') . '.o'

    " -gnatc: Check syntax and semantics only (no code generation attempted)
@@ -48,7 +48,7 @@ endfunction
 call ale#linter#Define('ada', {
 \   'name': 'gcc',
 \   'output_stream': 'stderr',
-\   'executable': {b -> ale#Var(b, 'ada_gcc_executable')},
-\   'command': function('ale_linters#ada#gcc#GetCommand'),
+\   'executable_callback': ale#VarFunc('ada_gcc_executable'),
+\   'command_callback': 'ale_linters#ada#gcc#GetCommand',
 \   'callback': 'ale_linters#ada#gcc#Handle',
 \})
--- a/ale_linters/ansible/ansible_lint.vim
+++ b/ale_linters/ansible/ansible_lint.vim
@@ -50,7 +50,7 @@ endfunction
 call ale#linter#Define('ansible', {
 \   'name': 'ansible_lint',
 \   'aliases': ['ansible', 'ansible-lint'],
-\   'executable': function('ale_linters#ansible#ansible_lint#GetExecutable'),
+\   'executable_callback': 'ale_linters#ansible#ansible_lint#GetExecutable',
 \   'command': '%e -p %t',
 \   'callback': 'ale_linters#ansible#ansible_lint#Handle',
 \})
--- a/ale_linters/asciidoc/alex.vim
+++ b/ale_linters/asciidoc/alex.vim
@@ -1,4 +1,11 @@
 " Author: Johannes Wienke <languitar@semipol.de>
 " Description: alex for asciidoc files

-call ale#handlers#alex#DefineLinter('asciidoc', '--text')
+call ale#linter#Define('help', {
+\   'name': 'alex',
+\   'executable': 'alex',
+\   'command': 'alex %s -t',
+\   'output_stream': 'stderr',
+\   'callback': 'ale#handlers#alex#Handle',
+\   'lint_file': 1,
+\})
--- a/ale_linters/asciidoc/textlint.vim
+++ b/ale_linters/asciidoc/textlint.vim
@@ -1,9 +0,0 @@
-" Author: TANIGUCHI Masaya <ta2gch@gmail.com>
-" Description: textlint for AsciiDoc files
-
-call ale#linter#Define('asciidoc', {
-\   'name': 'textlint',
-\   'executable': function('ale#handlers#textlint#GetExecutable'),
-\   'command': function('ale#handlers#textlint#GetCommand'),
-\   'callback': 'ale#handlers#textlint#HandleTextlintOutput',
-\})
--- a/ale_linters/asm/gcc.vim
+++ b/ale_linters/asm/gcc.vim
@@ -5,10 +5,7 @@ call ale#Set('asm_gcc_executable', 'gcc')
 call ale#Set('asm_gcc_options', '-Wall')

 function! ale_linters#asm#gcc#GetCommand(buffer) abort
-    " `-o /dev/null` or `-o null` is needed to catch all errors,
-    " -fsyntax-only doesn't catch everything.
-    return '%e -x assembler'
-    \   . ' -o ' . g:ale#util#nul_file
+    return '%e -x assembler -fsyntax-only '
    \   . '-iquote ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h'))
    \   . ' ' . ale#Var(a:buffer, 'asm_gcc_options') . ' -'
 endfunction
@@ -31,7 +28,7 @@ endfunction
 call ale#linter#Define('asm', {
 \    'name': 'gcc',
 \    'output_stream': 'stderr',
-\    'executable': {b -> ale#Var(b, 'asm_gcc_executable')},
-\    'command': function('ale_linters#asm#gcc#GetCommand'),
+\    'executable_callback': ale#VarFunc('asm_gcc_executable'),
+\    'command_callback': 'ale_linters#asm#gcc#GetCommand',
 \    'callback': 'ale_linters#asm#gcc#Handle',
 \})
--- a/ale_linters/awk/gawk.vim
+++ b/ale_linters/awk/gawk.vim
@@ -15,8 +15,8 @@ endfunction

 call ale#linter#Define('awk', {
 \   'name': 'gawk',
-\   'executable': {b -> ale#Var(b, 'awk_gawk_executable')},
-\   'command': function('ale_linters#awk#gawk#GetCommand'),
+\   'executable_callback': ale#VarFunc('awk_gawk_executable'),
+\   'command_callback': 'ale_linters#awk#gawk#GetCommand',
 \   'callback': 'ale#handlers#gawk#HandleGawkFormat',
 \   'output_stream': 'both'
 \})
--- a/ale_linters/bib/bibclean.vim
+++ b/ale_linters/bib/bibclean.vim
@@ -1,75 +0,0 @@
-" Author: Horacio Sanson - https://github.com/hsanson
-" Description: Support for bibclean linter for BibTeX files.
-
-call ale#Set('bib_bibclean_executable', 'bibclean')
-
-function! ale_linters#bib#bibclean#GetCommand(buffer) abort
-    let l:executable = ale#Var(a:buffer, 'bib_bibclean_executable')
-
-    return ale#Escape(l:executable) . ' -file-position '
-endfunction
-
-function! ale_linters#bib#bibclean#get_type(str) abort
-    if a:str is# '??'
-        return 'E'
-    else
-        return 'W'
-    endif
-endfunction
-
-function! ale_linters#bib#bibclean#match_msg(line) abort
-    return matchlist(a:line, '^\(.*\) "stdin", line \(.*\): \(.*\)$')
-endfunction
-
-function! ale_linters#bib#bibclean#match_entry(line) abort
-    return matchlist(a:line, 'Entry   input byte=.* line=\(.*\) column=\(.*\) output .*$')
-endfunction
-
-function! ale_linters#bib#bibclean#match_value(line) abort
-    return matchlist(a:line, 'Value   input byte=.* line=\(.*\) column=\(.*\) output .*$')
-endfunction
-
-function! ale_linters#bib#bibclean#Handle(buffer, lines) abort
-    let l:output = []
-
-    let l:type = 'E'
-    let l:msg  = ''
-
-    for l:line in a:lines
-        if empty(l:msg)
-            let l:mlist = ale_linters#bib#bibclean#match_msg(l:line)
-
-            if !empty(l:mlist)
-                let l:msg = l:mlist[3]
-                let l:type = ale_linters#bib#bibclean#get_type(l:mlist[1])
-            endif
-        else
-            if l:type is# 'E'
-                let l:mlist = ale_linters#bib#bibclean#match_entry(l:line)
-            else
-                let l:mlist = ale_linters#bib#bibclean#match_value(l:line)
-            endif
-
-            if !empty(l:mlist)
-                call add(l:output, {
-                \ 'lnum': l:mlist[1],
-                \ 'col': l:mlist[2],
-                \ 'text': l:msg,
-                \ 'type': l:type
-                \})
-
-                let l:msg = ''
-            endif
-        endif
-    endfor
-
-    return l:output
-endfunction
-
-call ale#linter#Define('bib', {
-\   'name': 'bibclean',
-\   'executable': {b -> ale#Var(b, 'bib_bibclean_executable')},
-\   'command': function('ale_linters#bib#bibclean#GetCommand'),
-\   'output_stream': 'stderr',
-\   'callback': 'ale_linters#bib#bibclean#Handle',
-\})
--- a/ale_linters/c/ccls.vim
+++ b/ale_linters/c/ccls.vim
@@ -7,8 +7,8 @@ call ale#Set('c_ccls_init_options', {})
 call ale#linter#Define('c', {
 \   'name': 'ccls',
 \   'lsp': 'stdio',
-\   'executable': {b -> ale#Var(b, 'c_ccls_executable')},
+\   'executable_callback': ale#VarFunc('c_ccls_executable'),
 \   'command': '%e',
-\   'project_root': function('ale#handlers#ccls#GetProjectRoot'),
-\   'initialization_options': {b -> ale#Var(b, 'c_ccls_init_options')},
+\   'project_root_callback': 'ale#handlers#ccls#GetProjectRoot',
+\   'initialization_options_callback':ale#VarFunc('c_ccls_init_options'),
 \})
--- a/ale_linters/c/clang.vim
+++ b/ale_linters/c/clang.vim
@@ -18,7 +18,10 @@ endfunction
 call ale#linter#Define('c', {
 \   'name': 'clang',
 \   'output_stream': 'stderr',
-\   'executable': {b -> ale#Var(b, 'c_clang_executable')},
-\   'command': {b -> ale#c#RunMakeCommand(b, function('ale_linters#c#clang#GetCommand'))},
+\   'executable_callback': ale#VarFunc('c_clang_executable'),
+\   'command_chain': [
+\       {'callback': 'ale#c#GetMakeCommand', 'output_stream': 'stdout'},
+\       {'callback': 'ale_linters#c#clang#GetCommand'}
+\   ],
 \   'callback': 'ale#handlers#gcc#HandleGCCFormatWithIncludes',
 \})
--- a/ale_linters/c/clangd.vim
+++ b/ale_linters/c/clangd.vim
@@ -4,6 +4,12 @@
 call ale#Set('c_clangd_executable', 'clangd')
 call ale#Set('c_clangd_options', '')

+function! ale_linters#c#clangd#GetProjectRoot(buffer) abort
+    let l:project_root = ale#path#FindNearestFile(a:buffer, 'compile_commands.json')
+
+    return !empty(l:project_root) ? fnamemodify(l:project_root, ':h') : ''
+endfunction
+
 function! ale_linters#c#clangd#GetCommand(buffer) abort
    return '%e' . ale#Pad(ale#Var(a:buffer, 'c_clangd_options'))
 endfunction
@@ -11,7 +17,7 @@ endfunction
 call ale#linter#Define('c', {
 \   'name': 'clangd',
 \   'lsp': 'stdio',
-\   'executable': {b -> ale#Var(b, 'c_clangd_executable')},
-\   'command': function('ale_linters#c#clangd#GetCommand'),
-\   'project_root': function('ale#c#FindProjectRoot'),
+\   'executable_callback': ale#VarFunc('c_clangd_executable'),
+\   'command_callback': 'ale_linters#c#clangd#GetCommand',
+\   'project_root_callback': 'ale_linters#c#clangd#GetProjectRoot',
 \})
--- a/ale_linters/c/clangtidy.vim
+++ b/ale_linters/c/clangtidy.vim
@@ -11,12 +11,9 @@ call ale#Set('c_clangtidy_executable', 'clang-tidy')
 " 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 to use as compile
-" flags.
+" Set this option to manually set some options for clang-tidy.
 " This will disable compile_commands.json detection.
 call ale#Set('c_clangtidy_options', '')
-" Set this option to manually set options for clang-tidy directly.
-call ale#Set('c_clangtidy_extra_options', '')
 call ale#Set('c_build_dir', '')

 function! ale_linters#c#clangtidy#GetCommand(buffer) abort
@@ -28,12 +25,8 @@ function! ale_linters#c#clangtidy#GetCommand(buffer) abort
    \   ? ale#Var(a:buffer, 'c_clangtidy_options')
    \   : ''

-    " Get the options to pass directly to clang-tidy
-    let l:extra_options = ale#Var(a:buffer, 'c_clangtidy_extra_options')
-
    return '%e'
    \   . (!empty(l:checks) ? ' -checks=' . ale#Escape(l:checks) : '')
-    \   . (!empty(l:extra_options) ? ' ' . ale#Escape(l:extra_options) : '')
    \   . ' %s'
    \   . (!empty(l:build_dir) ? ' -p ' . ale#Escape(l:build_dir) : '')
    \   . (!empty(l:options) ? ' -- ' . l:options : '')
@@ -42,8 +35,8 @@ endfunction
 call ale#linter#Define('c', {
 \   'name': 'clangtidy',
 \   'output_stream': 'stdout',
-\   'executable': {b -> ale#Var(b, 'c_clangtidy_executable')},
-\   'command': function('ale_linters#c#clangtidy#GetCommand'),
+\   'executable_callback': ale#VarFunc('c_clangtidy_executable'),
+\   'command_callback': 'ale_linters#c#clangtidy#GetCommand',
 \   'callback': 'ale#handlers#gcc#HandleGCCFormat',
 \   'lint_file': 1,
 \})
--- a/ale_linters/c/cppcheck.vim
+++ b/ale_linters/c/cppcheck.vim
@@ -5,24 +5,30 @@ call ale#Set('c_cppcheck_executable', 'cppcheck')
 call ale#Set('c_cppcheck_options', '--enable=style')

 function! ale_linters#c#cppcheck#GetCommand(buffer) abort
-    let l:cd_command = ale#handlers#cppcheck#GetCdCommand(a:buffer)
-    let l:compile_commands_option = ale#handlers#cppcheck#GetCompileCommandsOptions(a:buffer)
-    let l:buffer_path_include = empty(l:compile_commands_option)
-    \   ? ale#handlers#cppcheck#GetBufferPathIncludeOptions(a:buffer)
+    " Search upwards from the file for compile_commands.json.
+    "
+    " If we find it, we'll `cd` to where the compile_commands.json file is,
+    " then use the file to set up import paths, etc.
+    let l:compile_commmands_path = ale#path#FindNearestFile(a:buffer, 'compile_commands.json')
+
+    let l:cd_command = !empty(l:compile_commmands_path)
+    \   ? ale#path#CdString(fnamemodify(l:compile_commmands_path, ':h'))
+    \   : ''
+    let l:compile_commands_option = !empty(l:compile_commmands_path)
+    \   ? '--project=compile_commands.json '
    \   : ''

    return l:cd_command
-    \   . '%e -q --language=c'
-    \   . ale#Pad(l:compile_commands_option)
-    \   . ale#Pad(ale#Var(a:buffer, 'c_cppcheck_options'))
-    \   . l:buffer_path_include
+    \   . '%e -q --language=c '
+    \   . l:compile_commands_option
+    \   . ale#Var(a:buffer, 'c_cppcheck_options')
    \   . ' %t'
 endfunction

 call ale#linter#Define('c', {
 \   'name': 'cppcheck',
 \   'output_stream': 'both',
-\   'executable': {b -> ale#Var(b, 'c_cppcheck_executable')},
-\   'command': function('ale_linters#c#cppcheck#GetCommand'),
+\   'executable_callback': ale#VarFunc('c_cppcheck_executable'),
+\   'command_callback': 'ale_linters#c#cppcheck#GetCommand',
 \   'callback': 'ale#handlers#cppcheck#HandleCppCheckFormat',
 \})
--- a/ale_linters/c/cquery.vim
+++ b/ale_linters/c/cquery.vim
@@ -5,15 +5,13 @@ call ale#Set('c_cquery_executable', 'cquery')
 call ale#Set('c_cquery_cache_directory', expand('~/.cache/cquery'))

 function! ale_linters#c#cquery#GetProjectRoot(buffer) abort
-    " Try to find cquery configuration files first.
-    let l:config = ale#path#FindNearestFile(a:buffer, '.cquery')
+    let l:project_root = ale#path#FindNearestFile(a:buffer, 'compile_commands.json')

-    if !empty(l:config)
-        return fnamemodify(l:config, ':h')
+    if empty(l:project_root)
+        let l:project_root = ale#path#FindNearestFile(a:buffer, '.cquery')
    endif

-    " Fall back on default project root detection.
-    return ale#c#FindProjectRoot(a:buffer)
+    return !empty(l:project_root) ? fnamemodify(l:project_root, ':h') : ''
 endfunction

 function! ale_linters#c#cquery#GetInitializationOptions(buffer) abort
@@ -23,8 +21,8 @@ endfunction
 call ale#linter#Define('c', {
 \   'name': 'cquery',
 \   'lsp': 'stdio',
-\   'executable': {b -> ale#Var(b, 'c_cquery_executable')},
+\   'executable_callback': ale#VarFunc('c_cquery_executable'),
 \   'command': '%e',
-\   'project_root': function('ale_linters#c#cquery#GetProjectRoot'),
-\   'initialization_options': function('ale_linters#c#cquery#GetInitializationOptions'),
+\   'project_root_callback': 'ale_linters#c#cquery#GetProjectRoot',
+\   'initialization_options_callback': 'ale_linters#c#cquery#GetInitializationOptions',
 \})
--- a/ale_linters/c/flawfinder.vim
+++ b/ale_linters/c/flawfinder.vim
@@ -7,19 +7,19 @@ call ale#Set('c_flawfinder_minlevel', 1)
 call ale#Set('c_flawfinder_error_severity', 6)

 function! ale_linters#c#flawfinder#GetCommand(buffer) abort
-    " Set the minimum vulnerability level for flawfinder to bother with
-    let l:minlevel = ' --minlevel=' . ale#Var(a:buffer, 'c_flawfinder_minlevel')
+   " Set the minimum vulnerability level for flawfinder to bother with
+   let l:minlevel = ' --minlevel=' . ale#Var(a:buffer, 'c_flawfinder_minlevel')

-    return '%e -CDQS'
-    \  . ale#Pad(ale#Var(a:buffer, 'c_flawfinder_options'))
-    \  . l:minlevel
-    \  . ' %t'
+   return '%e -CDQS'
+   \  . ale#Pad(ale#Var(a:buffer, 'c_flawfinder_options'))
+   \  . l:minlevel
+   \  . ' %t'
 endfunction

 call ale#linter#Define('c', {
 \  'name': 'flawfinder',
 \  'output_stream': 'stdout',
-\  'executable': {b -> ale#Var(b, 'c_flawfinder_executable')},
-\  'command': function('ale_linters#c#flawfinder#GetCommand'),
+\  'executable_callback': ale#VarFunc('c_flawfinder_executable'),
+\  'command_callback': 'ale_linters#c#flawfinder#GetCommand',
 \  'callback': 'ale#handlers#flawfinder#HandleFlawfinderFormat',
 \})
--- a/ale_linters/c/gcc.vim
+++ b/ale_linters/c/gcc.vim
@@ -9,11 +9,7 @@ function! ale_linters#c#gcc#GetCommand(buffer, output) abort

    " -iquote with the directory the file is in makes #include work for
    "  headers in the same directory.
-    "
-    " `-o /dev/null` or `-o null` is needed to catch all errors,
-    " -fsyntax-only doesn't catch everything.
-    return '%e -S -x c'
-    \   . ' -o ' . g:ale#util#nul_file
+    return '%e -S -x c -fsyntax-only'
    \   . ' -iquote ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h'))
    \   . ale#Pad(l:cflags)
    \   . ale#Pad(ale#Var(a:buffer, 'c_gcc_options')) . ' -'
@@ -22,7 +18,10 @@ endfunction
 call ale#linter#Define('c', {
 \   'name': 'gcc',
 \   'output_stream': 'stderr',
-\   'executable': {b -> ale#Var(b, 'c_gcc_executable')},
-\   'command': {b -> ale#c#RunMakeCommand(b, function('ale_linters#c#gcc#GetCommand'))},
+\   'executable_callback': ale#VarFunc('c_gcc_executable'),
+\   'command_chain': [
+\       {'callback': 'ale#c#GetMakeCommand', 'output_stream': 'stdout'},
+\       {'callback': 'ale_linters#c#gcc#GetCommand'}
+\   ],
 \   'callback': 'ale#handlers#gcc#HandleGCCFormatWithIncludes',
 \})
--- a/ale_linters/chef/cookstyle.vim
+++ b/ale_linters/chef/cookstyle.vim
@@ -1,54 +0,0 @@
-" Author: Raphael Hoegger - https://github.com/pfuender
-" Description: Cookstyle (RuboCop based), a code style analyzer for Ruby files
-
-call ale#Set('chef_cookstyle_executable', 'cookstyle')
-call ale#Set('chef_cookstyle_options', '')
-
-function! ale_linters#chef#cookstyle#GetCommand(buffer) abort
-    let l:options = ale#Var(a:buffer, 'chef_cookstyle_options')
-
-    return '%e' . ale#Pad(escape(l:options, '~')) . ' --force-exclusion --format json --stdin ' . ' %s'
-endfunction
-
-function! ale_linters#chef#cookstyle#Handle(buffer, lines) abort
-    if len(a:lines) == 0
-        return []
-    endif
-
-    let l:errors = ale#util#FuzzyJSONDecode(a:lines[0], {})
-
-    if !has_key(l:errors, 'summary')
-    \|| l:errors['summary']['offense_count'] == 0
-    \|| empty(l:errors['files'])
-        return []
-    endif
-
-    let l:output = []
-
-    for l:error in l:errors['files'][0]['offenses']
-        let l:start_col = str2nr(l:error['location']['start_column'])
-        let l:end_col = str2nr(l:error['location']['last_column'])
-
-        if !l:end_col
-            let l:end_col = l:start_col + 1
-        endif
-
-        call add(l:output, {
-        \   'lnum': str2nr(l:error['location']['line']),
-        \   'col': l:start_col,
-        \   'end_col': l:end_col,
-        \   'code': l:error['cop_name'],
-        \   'text': l:error['message'],
-        \   'type': l:error['severity'] is? 'convention' ? 'W' : 'E',
-        \})
-    endfor
-
-    return l:output
-endfunction
-
-call ale#linter#Define('chef', {
-\   'name': 'cookstyle',
-\   'executable': {b -> ale#Var(b, 'chef_cookstyle_executable')},
-\   'command': function('ale_linters#chef#cookstyle#GetCommand'),
-\   'callback': 'ale_linters#chef#cookstyle#Handle',
-\})
--- a/ale_linters/chef/foodcritic.vim
+++ b/ale_linters/chef/foodcritic.vim
@@ -34,8 +34,8 @@ endfunction

 call ale#linter#Define('chef', {
 \   'name': 'foodcritic',
-\   'executable': {b -> ale#Var(b, 'chef_foodcritic_executable')},
-\   'command': function('ale_linters#chef#foodcritic#GetCommand'),
+\   'executable_callback': ale#VarFunc('chef_foodcritic_executable'),
+\   'command_callback': 'ale_linters#chef#foodcritic#GetCommand',
 \   'callback': 'ale_linters#chef#foodcritic#Handle',
 \   'lint_file': 1,
 \})
--- a/ale_linters/clojure/clj_kondo.vim
+++ b/ale_linters/clojure/clj_kondo.vim
@@ -1,34 +0,0 @@
-" Author: Masashi Iizuka <liquidz.uo@gmail.com>
-" Description: linter for clojure using clj-kondo https://github.com/borkdude/clj-kondo
-
-function! ale_linters#clojure#clj_kondo#HandleCljKondoFormat(buffer, lines) abort
-    " output format
-    " <filename>:<line>:<column>: <issue type>: <message>
-    let l:pattern = '\v^[a-zA-Z]?:?[^:]+:(\d+):(\d+):? ((Exception|error|warning): ?(.+))$'
-    let l:output = []
-
-    for l:match in ale#util#GetMatches(a:lines, l:pattern)
-        let l:type = 'E'
-
-        if l:match[4] is? 'warning'
-            let l:type = 'W'
-        endif
-
-        call add(l:output, {
-        \   'lnum': l:match[1] + 0,
-        \   'col': l:match[2] + 0,
-        \   'text': l:match[3],
-        \   'type': l:type,
-        \})
-    endfor
-
-    return l:output
-endfunction
-
-call ale#linter#Define('clojure', {
-\   'name': 'clj-kondo',
-\   'output_stream': 'stdout',
-\   'executable': 'clj-kondo',
-\   'command': 'clj-kondo --lint %t',
-\   'callback': 'ale_linters#clojure#clj_kondo#HandleCljKondoFormat',
-\})
--- a/ale_linters/clojure/joker.vim
+++ b/ale_linters/clojure/joker.vim
@@ -11,7 +11,7 @@ function! ale_linters#clojure#joker#HandleJokerFormat(buffer, lines) abort
        let l:type = 'E'

        if l:match[4] is? 'Parse warning'
-            let l:type = 'W'
+          let l:type = 'W'
        endif

        call add(l:output, {
--- a/ale_linters/cmake/cmakelint.vim
+++ b/ale_linters/cmake/cmakelint.vim
@@ -18,7 +18,7 @@ endfunction

 call ale#linter#Define('cmake', {
 \   'name': 'cmakelint',
-\   'executable': function('ale_linters#cmake#cmakelint#Executable'),
-\   'command': function('ale_linters#cmake#cmakelint#Command'),
+\   'executable_callback': 'ale_linters#cmake#cmakelint#Executable',
+\   'command_callback': 'ale_linters#cmake#cmakelint#Command',
 \   'callback': 'ale#handlers#unix#HandleAsWarning',
 \})
--- a/ale_linters/coffee/coffee.vim
+++ b/ale_linters/coffee/coffee.vim
@@ -16,8 +16,8 @@ endfunction

 call ale#linter#Define('coffee', {
 \   'name': 'coffee',
-\   'executable': function('ale_linters#coffee#coffee#GetExecutable'),
-\   'command': function('ale_linters#coffee#coffee#GetCommand'),
+\   'executable_callback': 'ale_linters#coffee#coffee#GetExecutable',
+\   'command_callback': 'ale_linters#coffee#coffee#GetCommand',
 \   'output_stream': 'stderr',
 \   'callback': 'ale#handlers#gcc#HandleGCCFormat',
 \})
--- a/ale_linters/coffee/coffeelint.vim
+++ b/ale_linters/coffee/coffeelint.vim
@@ -37,7 +37,7 @@ endfunction

 call ale#linter#Define('coffee', {
 \   'name': 'coffeelint',
-\   'executable': function('ale_linters#coffee#coffeelint#GetExecutable'),
-\   'command': function('ale_linters#coffee#coffeelint#GetCommand'),
+\   'executable_callback': 'ale_linters#coffee#coffeelint#GetExecutable',
+\   'command_callback': 'ale_linters#coffee#coffeelint#GetCommand',
 \   'callback': 'ale_linters#coffee#coffeelint#Handle',
 \})
--- a/ale_linters/cpp/ccls.vim
+++ b/ale_linters/cpp/ccls.vim
@@ -7,8 +7,8 @@ call ale#Set('cpp_ccls_init_options', {})
 call ale#linter#Define('cpp', {
 \   'name': 'ccls',
 \   'lsp': 'stdio',
-\   'executable': {b -> ale#Var(b, 'cpp_ccls_executable')},
+\   'executable_callback': ale#VarFunc('cpp_ccls_executable'),
 \   'command': '%e',
-\   'project_root': function('ale#handlers#ccls#GetProjectRoot'),
-\   'initialization_options': {b -> ale#Var(b, 'cpp_ccls_init_options')},
+\   'project_root_callback': 'ale#handlers#ccls#GetProjectRoot',
+\   'initialization_options_callback': ale#VarFunc('cpp_ccls_init_options'),
 \})
--- a/ale_linters/cpp/clang.vim
+++ b/ale_linters/cpp/clang.vim
@@ -18,7 +18,10 @@ endfunction
 call ale#linter#Define('cpp', {
 \   'name': 'clang',
 \   'output_stream': 'stderr',
-\   'executable': {b -> ale#Var(b, 'cpp_clang_executable')},
-\   'command': {b -> ale#c#RunMakeCommand(b, function('ale_linters#cpp#clang#GetCommand'))},
+\   'executable_callback': ale#VarFunc('cpp_clang_executable'),
+\   'command_chain': [
+\       {'callback': 'ale#c#GetMakeCommand', 'output_stream': 'stdout'},
+\       {'callback': 'ale_linters#cpp#clang#GetCommand'},
+\   ],
 \   'callback': 'ale#handlers#gcc#HandleGCCFormatWithIncludes',
 \})
--- a/ale_linters/cpp/clangcheck.vim
+++ b/ale_linters/cpp/clangcheck.vim
@@ -12,8 +12,7 @@ function! ale_linters#cpp#clangcheck#GetCommand(buffer) abort
    let l:build_dir = ale#Var(a:buffer, 'c_build_dir')

    if empty(l:build_dir)
-        let [l:root, l:json_file] = ale#c#FindCompileCommands(a:buffer)
-        let l:build_dir = ale#path#Dirname(l:json_file)
+        let l:build_dir = ale#path#Dirname(ale#c#FindCompileCommands(a:buffer))
    endif

    " The extra arguments in the command are used to prevent .plist files from
@@ -28,8 +27,8 @@ endfunction
 call ale#linter#Define('cpp', {
 \   'name': 'clangcheck',
 \   'output_stream': 'stderr',
-\   'executable': {b -> ale#Var(b, 'cpp_clangcheck_executable')},
-\   'command': function('ale_linters#cpp#clangcheck#GetCommand'),
+\   'executable_callback': ale#VarFunc('cpp_clangcheck_executable'),
+\   'command_callback': 'ale_linters#cpp#clangcheck#GetCommand',
 \   'callback': 'ale#handlers#gcc#HandleGCCFormat',
 \   'lint_file': 1,
 \})
--- a/ale_linters/cpp/clangd.vim
+++ b/ale_linters/cpp/clangd.vim
@@ -4,6 +4,12 @@
 call ale#Set('cpp_clangd_executable', 'clangd')
 call ale#Set('cpp_clangd_options', '')

+function! ale_linters#cpp#clangd#GetProjectRoot(buffer) abort
+    let l:project_root = ale#path#FindNearestFile(a:buffer, 'compile_commands.json')
+
+    return !empty(l:project_root) ? fnamemodify(l:project_root, ':h') : ''
+endfunction
+
 function! ale_linters#cpp#clangd#GetCommand(buffer) abort
    return '%e' . ale#Pad(ale#Var(a:buffer, 'cpp_clangd_options'))
 endfunction
@@ -11,7 +17,7 @@ endfunction
 call ale#linter#Define('cpp', {
 \   'name': 'clangd',
 \   'lsp': 'stdio',
-\   'executable': {b -> ale#Var(b, 'cpp_clangd_executable')},
-\   'command': function('ale_linters#cpp#clangd#GetCommand'),
-\   'project_root': function('ale#c#FindProjectRoot'),
+\   'executable_callback': ale#VarFunc('cpp_clangd_executable'),
+\   'command_callback': 'ale_linters#cpp#clangd#GetCommand',
+\   'project_root_callback': 'ale_linters#cpp#clangd#GetProjectRoot',
 \})
--- a/ale_linters/cpp/clangtidy.vim
+++ b/ale_linters/cpp/clangtidy.vim
@@ -5,12 +5,9 @@
 call ale#Set('cpp_clangtidy_executable', 'clang-tidy')
 " Set this option to check the checks clang-tidy will apply.
 call ale#Set('cpp_clangtidy_checks', [])
-" Set this option to manually set some options for clang-tidy to use as compile
-" flags.
+" Set this option to manually set some options for clang-tidy.
 " This will disable compile_commands.json detection.
 call ale#Set('cpp_clangtidy_options', '')
-" Set this option to manually set options for clang-tidy directly.
-call ale#Set('cpp_clangtidy_extra_options', '')
 call ale#Set('c_build_dir', '')

 function! ale_linters#cpp#clangtidy#GetCommand(buffer) abort
@@ -22,12 +19,8 @@ function! ale_linters#cpp#clangtidy#GetCommand(buffer) abort
    \   ? ale#Var(a:buffer, 'cpp_clangtidy_options')
    \   : ''

-    " Get the options to pass directly to clang-tidy
-    let l:extra_options = ale#Var(a:buffer, 'cpp_clangtidy_extra_options')
-
    return '%e'
    \   . (!empty(l:checks) ? ' -checks=' . ale#Escape(l:checks) : '')
-    \   . (!empty(l:extra_options) ? ' ' . ale#Escape(l:extra_options) : '')
    \   . ' %s'
    \   . (!empty(l:build_dir) ? ' -p ' . ale#Escape(l:build_dir) : '')
    \   . (!empty(l:options) ? ' -- ' . l:options : '')
@@ -36,8 +29,8 @@ endfunction
 call ale#linter#Define('cpp', {
 \   'name': 'clangtidy',
 \   'output_stream': 'stdout',
-\   'executable': {b -> ale#Var(b, 'cpp_clangtidy_executable')},
-\   'command': function('ale_linters#cpp#clangtidy#GetCommand'),
+\   'executable_callback': ale#VarFunc('cpp_clangtidy_executable'),
+\   'command_callback': 'ale_linters#cpp#clangtidy#GetCommand',
 \   'callback': 'ale#handlers#gcc#HandleGCCFormat',
 \   'lint_file': 1,
 \})
--- a/ale_linters/cpp/clazy.vim
+++ b/ale_linters/cpp/clazy.vim
@@ -25,8 +25,8 @@ endfunction
 call ale#linter#Define('cpp', {
 \   'name': 'clazy',
 \   'output_stream': 'stderr',
-\   'executable': {b -> ale#Var(b, 'cpp_clazy_executable')},
-\   'command': function('ale_linters#cpp#clazy#GetCommand'),
+\   'executable_callback': ale#VarFunc('cpp_clazy_executable'),
+\   'command_callback': 'ale_linters#cpp#clazy#GetCommand',
 \   'callback': 'ale#handlers#gcc#HandleGCCFormat',
 \   'lint_file': 1,
 \})
--- a/ale_linters/cpp/cppcheck.vim
+++ b/ale_linters/cpp/cppcheck.vim
@@ -5,24 +5,30 @@ call ale#Set('cpp_cppcheck_executable', 'cppcheck')
 call ale#Set('cpp_cppcheck_options', '--enable=style')

 function! ale_linters#cpp#cppcheck#GetCommand(buffer) abort
-    let l:cd_command = ale#handlers#cppcheck#GetCdCommand(a:buffer)
-    let l:compile_commands_option = ale#handlers#cppcheck#GetCompileCommandsOptions(a:buffer)
-    let l:buffer_path_include = empty(l:compile_commands_option)
-    \   ? ale#handlers#cppcheck#GetBufferPathIncludeOptions(a:buffer)
+    " Search upwards from the file for compile_commands.json.
+    "
+    " If we find it, we'll `cd` to where the compile_commands.json file is,
+    " then use the file to set up import paths, etc.
+    let l:compile_commmands_path = ale#path#FindNearestFile(a:buffer, 'compile_commands.json')
+
+    let l:cd_command = !empty(l:compile_commmands_path)
+    \   ? ale#path#CdString(fnamemodify(l:compile_commmands_path, ':h'))
+    \   : ''
+    let l:compile_commands_option = !empty(l:compile_commmands_path)
+    \   ? '--project=compile_commands.json '
    \   : ''

    return l:cd_command
-    \   . '%e -q --language=c++'
-    \   . ale#Pad(l:compile_commands_option)
-    \   . ale#Pad(ale#Var(a:buffer, 'cpp_cppcheck_options'))
-    \   . l:buffer_path_include
+    \   . '%e -q --language=c++ '
+    \   . l:compile_commands_option
+    \   . ale#Var(a:buffer, 'cpp_cppcheck_options')
    \   . ' %t'
 endfunction

 call ale#linter#Define('cpp', {
 \   'name': 'cppcheck',
 \   'output_stream': 'both',
-\   'executable': {b -> ale#Var(b, 'cpp_cppcheck_executable')},
-\   'command': function('ale_linters#cpp#cppcheck#GetCommand'),
+\   'executable_callback': ale#VarFunc('cpp_cppcheck_executable'),
+\   'command_callback': 'ale_linters#cpp#cppcheck#GetCommand',
 \   'callback': 'ale#handlers#cppcheck#HandleCppCheckFormat',
 \})
--- a/ale_linters/cpp/cpplint.vim
+++ b/ale_linters/cpp/cpplint.vim
@@ -13,8 +13,8 @@ endfunction
 call ale#linter#Define('cpp', {
 \   'name': 'cpplint',
 \   'output_stream': 'stderr',
-\   'executable': {b -> ale#Var(b, 'cpp_cpplint_executable')},
-\   'command': function('ale_linters#cpp#cpplint#GetCommand'),
+\   'executable_callback': ale#VarFunc('cpp_cpplint_executable'),
+\   'command_callback': 'ale_linters#cpp#cpplint#GetCommand',
 \   'callback': 'ale#handlers#cpplint#HandleCppLintFormat',
 \   'lint_file': 1,
 \})
--- a/ale_linters/cpp/cquery.vim
+++ b/ale_linters/cpp/cquery.vim
@@ -5,15 +5,13 @@ call ale#Set('cpp_cquery_executable', 'cquery')
 call ale#Set('cpp_cquery_cache_directory', expand('~/.cache/cquery'))

 function! ale_linters#cpp#cquery#GetProjectRoot(buffer) abort
-    " Try to find cquery configuration files first.
-    let l:config = ale#path#FindNearestFile(a:buffer, '.cquery')
+    let l:project_root = ale#path#FindNearestFile(a:buffer, 'compile_commands.json')

-    if !empty(l:config)
-        return fnamemodify(l:config, ':h')
+    if empty(l:project_root)
+        let l:project_root = ale#path#FindNearestFile(a:buffer, '.cquery')
    endif

-    " Fall back on default project root detection.
-    return ale#c#FindProjectRoot(a:buffer)
+    return !empty(l:project_root) ? fnamemodify(l:project_root, ':h') : ''
 endfunction

 function! ale_linters#cpp#cquery#GetInitializationOptions(buffer) abort
@@ -23,8 +21,8 @@ endfunction
 call ale#linter#Define('cpp', {
 \   'name': 'cquery',
 \   'lsp': 'stdio',
-\   'executable': {b -> ale#Var(b, 'cpp_cquery_executable')},
+\   'executable_callback': ale#VarFunc('cpp_cquery_executable'),
 \   'command': '%e',
-\   'project_root': function('ale_linters#cpp#cquery#GetProjectRoot'),
-\   'initialization_options': function('ale_linters#cpp#cquery#GetInitializationOptions'),
+\   'project_root_callback': 'ale_linters#cpp#cquery#GetProjectRoot',
+\   'initialization_options_callback': 'ale_linters#cpp#cquery#GetInitializationOptions',
 \})
--- a/ale_linters/cpp/flawfinder.vim
+++ b/ale_linters/cpp/flawfinder.vim
@@ -7,19 +7,19 @@ call ale#Set('cpp_flawfinder_minlevel', 1)
 call ale#Set('c_flawfinder_error_severity', 6)

 function! ale_linters#cpp#flawfinder#GetCommand(buffer) abort
-    " Set the minimum vulnerability level for flawfinder to bother with
-    let l:minlevel = ' --minlevel=' . ale#Var(a:buffer, 'cpp_flawfinder_minlevel')
+   " Set the minimum vulnerability level for flawfinder to bother with
+   let l:minlevel = ' --minlevel=' . ale#Var(a:buffer, 'cpp_flawfinder_minlevel')

-    return '%e -CDQS'
-    \  . ale#Var(a:buffer, 'cpp_flawfinder_options')
-    \  . l:minlevel
-    \  . ' %t'
+   return '%e -CDQS'
+   \  . ale#Var(a:buffer, 'cpp_flawfinder_options')
+   \  . l:minlevel
+   \  . ' %t'
 endfunction

 call ale#linter#Define('cpp', {
 \  'name': 'flawfinder',
 \  'output_stream': 'stdout',
-\  'executable': {b -> ale#Var(b, 'cpp_flawfinder_executable')},
-\  'command': function('ale_linters#cpp#flawfinder#GetCommand'),
+\  'executable_callback': ale#VarFunc('cpp_flawfinder_executable'),
+\  'command_callback': 'ale_linters#cpp#flawfinder#GetCommand',
 \  'callback': 'ale#handlers#flawfinder#HandleFlawfinderFormat',
 \})
--- a/ale_linters/cpp/gcc.vim
+++ b/ale_linters/cpp/gcc.vim
@@ -9,11 +9,7 @@ function! ale_linters#cpp#gcc#GetCommand(buffer, output) abort

    " -iquote with the directory the file is in makes #include work for
    "  headers in the same directory.
-    "
-    " `-o /dev/null` or `-o null` is needed to catch all errors,
-    " -fsyntax-only doesn't catch everything.
-    return '%e -S -x c++'
-    \   . ' -o ' . g:ale#util#nul_file
+    return '%e -S -x c++ -fsyntax-only'
    \   . ' -iquote ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h'))
    \   . ale#Pad(l:cflags)
    \   . ale#Pad(ale#Var(a:buffer, 'cpp_gcc_options')) . ' -'
@@ -23,7 +19,10 @@ call ale#linter#Define('cpp', {
 \   'name': 'gcc',
 \   'aliases': ['g++'],
 \   'output_stream': 'stderr',
-\   'executable': {b -> ale#Var(b, 'cpp_gcc_executable')},
-\   'command': {b -> ale#c#RunMakeCommand(b, function('ale_linters#cpp#gcc#GetCommand'))},
+\   'executable_callback': ale#VarFunc('cpp_gcc_executable'),
+\   'command_chain': [
+\       {'callback': 'ale#c#GetMakeCommand', 'output_stream': 'stdout'},
+\       {'callback': 'ale_linters#cpp#gcc#GetCommand'},
+\   ],
 \   'callback': 'ale#handlers#gcc#HandleGCCFormatWithIncludes',
 \})
--- a/ale_linters/crystal/ameba.vim
+++ b/ale_linters/crystal/ameba.vim
@@ -1,57 +0,0 @@
-" Author: Harrison Bachrach - https://github.com/HarrisonB
-" Description: Ameba, a linter for crystal files
-
-call ale#Set('crystal_ameba_executable', 'bin/ameba')
-
-function! ale_linters#crystal#ameba#GetCommand(buffer) abort
-    let l:executable = ale#Var(a:buffer, 'crystal_ameba_executable')
-
-    return ale#Escape(l:executable)
-    \   . ' --format json '
-    \   .  ale#Escape(expand('#' . a:buffer . ':p'))
-endfunction
-
-" Handle output from ameba
-function! ale_linters#crystal#ameba#HandleAmebaOutput(buffer, lines) abort
-    if len(a:lines) == 0
-        return []
-    endif
-
-    let l:errors = ale#util#FuzzyJSONDecode(a:lines[0], {})
-
-    if !has_key(l:errors, 'summary')
-    \|| l:errors['summary']['issues_count'] == 0
-    \|| empty(l:errors['sources'])
-        return []
-    endif
-
-    let l:output = []
-
-    for l:error in l:errors['sources'][0]['issues']
-        let l:start_col = str2nr(l:error['location']['column'])
-        let l:end_col = str2nr(l:error['end_location']['column'])
-
-        if !l:end_col
-            let l:end_col = l:start_col + 1
-        endif
-
-        call add(l:output, {
-        \   'lnum': str2nr(l:error['location']['line']),
-        \   'col': l:start_col,
-        \   'end_col': l:end_col,
-        \   'code': l:error['rule_name'],
-        \   'text': l:error['message'],
-        \   'type': 'W',
-        \})
-    endfor
-
-    return l:output
-endfunction
-
-call ale#linter#Define('crystal', {
-\   'name': 'ameba',
-\   'executable': {b -> ale#Var(b, 'crystal_ameba_executable')},
-\   'command': function('ale_linters#crystal#ameba#GetCommand'),
-\   'callback': 'ale_linters#crystal#ameba#HandleAmebaOutput',
-\   'lint_file': 1,
-\})
--- a/ale_linters/crystal/crystal.vim
+++ b/ale_linters/crystal/crystal.vim
@@ -26,6 +26,6 @@ call ale#linter#Define('crystal', {
 \   'executable': 'crystal',
 \   'output_stream': 'both',
 \   'lint_file': 1,
-\   'command': function('ale_linters#crystal#crystal#GetCommand'),
+\   'command_callback': 'ale_linters#crystal#crystal#GetCommand',
 \   'callback': 'ale_linters#crystal#crystal#Handle',
 \})
--- a/ale_linters/cs/mcs.vim
+++ b/ale_linters/cs/mcs.vim
@@ -32,6 +32,6 @@ call ale#linter#Define('cs',{
 \   'name': 'mcs',
 \   'output_stream': 'stderr',
 \   'executable': 'mcs',
-\   'command': function('ale_linters#cs#mcs#GetCommand'),
+\   'command_callback': 'ale_linters#cs#mcs#GetCommand',
 \   'callback': 'ale_linters#cs#mcs#Handle',
 \})
--- a/ale_linters/cs/mcsc.vim
+++ b/ale_linters/cs/mcsc.vim
@@ -30,7 +30,7 @@ function! ale_linters#cs#mcsc#GetCommand(buffer) abort

    " register temporary module target file with ale
    " register temporary module target file with ALE.
-    let l:out = ale#command#CreateFile(a:buffer)
+    let l:out = ale#engine#CreateFile(a:buffer)

    " The code is compiled as a module and the output is redirected to a
    " temporary file.
@@ -75,7 +75,7 @@ call ale#linter#Define('cs',{
 \   'name': 'mcsc',
 \   'output_stream': 'stderr',
 \   'executable': 'mcs',
-\   'command': function('ale_linters#cs#mcsc#GetCommand'),
+\   'command_callback': 'ale_linters#cs#mcsc#GetCommand',
 \   'callback': 'ale_linters#cs#mcsc#Handle',
 \   'lint_file': 1
 \})
--- a/ale_linters/css/csslint.vim
+++ b/ale_linters/css/csslint.vim
@@ -13,6 +13,6 @@ endfunction
 call ale#linter#Define('css', {
 \   'name': 'csslint',
 \   'executable': 'csslint',
-\   'command': function('ale_linters#css#csslint#GetCommand'),
+\   'command_callback': 'ale_linters#css#csslint#GetCommand',
 \   'callback': 'ale#handlers#css#HandleCSSLintFormat',
 \})
--- a/ale_linters/css/fecs.vim
+++ b/ale_linters/css/fecs.vim
@@ -1,9 +0,0 @@
-" Author: harttle <yangjvn@126.com>
-" Description: fecs for CSS files
-
-call ale#linter#Define('css', {
-\   'name': 'fecs',
-\   'executable': function('ale#handlers#fecs#GetExecutable'),
-\   'command': function('ale#handlers#fecs#GetCommand'),
-\   'callback': 'ale#handlers#fecs#Handle',
-\})
--- a/ale_linters/css/stylelint.vim
+++ b/ale_linters/css/stylelint.vim
@@ -11,9 +11,9 @@ endfunction

 call ale#linter#Define('css', {
 \   'name': 'stylelint',
-\   'executable': {b -> ale#node#FindExecutable(b, 'css_stylelint', [
+\   'executable_callback': ale#node#FindExecutableFunc('css_stylelint', [
 \       'node_modules/.bin/stylelint',
-\   ])},
-\   'command': function('ale_linters#css#stylelint#GetCommand'),
+\   ]),
+\   'command_callback': 'ale_linters#css#stylelint#GetCommand',
 \   'callback': 'ale#handlers#css#HandleStyleLintFormat',
 \})
--- a/ale_linters/cucumber/cucumber.vim
+++ b/ale_linters/cucumber/cucumber.vim
@@ -41,6 +41,6 @@ endfunction
 call ale#linter#Define('cucumber', {
 \   'name': 'cucumber',
 \   'executable': 'cucumber',
-\   'command': function('ale_linters#cucumber#cucumber#GetCommand'),
+\   'command_callback': 'ale_linters#cucumber#cucumber#GetCommand',
 \   'callback': 'ale_linters#cucumber#cucumber#Handle'
 \})
--- a/ale_linters/cuda/nvcc.vim
+++ b/ale_linters/cuda/nvcc.vim
@@ -7,7 +7,7 @@ call ale#Set('cuda_nvcc_options', '-std=c++11')
 function! ale_linters#cuda#nvcc#GetCommand(buffer) abort
    " Unused: use ale#util#nul_file
    " let l:output_file = ale#util#Tempname() . '.ii'
-    " call ale#command#ManageFile(a:buffer, l:output_file)
+    " call ale#engine#ManageFile(a:buffer, l:output_file)
    return '%e -cuda'
    \   . ale#Pad(ale#c#IncludeOptions(ale#c#FindLocalHeaderPaths(a:buffer)))
    \   . ale#Pad(ale#Var(a:buffer, 'cuda_nvcc_options'))
@@ -42,8 +42,8 @@ endfunction
 call ale#linter#Define('cuda', {
 \   'name': 'nvcc',
 \   'output_stream': 'stderr',
-\   'executable': {b -> ale#Var(b, 'cuda_nvcc_executable')},
-\   'command': function('ale_linters#cuda#nvcc#GetCommand'),
+\   'executable_callback': ale#VarFunc('cuda_nvcc_executable'),
+\   'command_callback': 'ale_linters#cuda#nvcc#GetCommand',
 \   'callback': 'ale_linters#cuda#nvcc#HandleNVCCFormat',
 \   'lint_file': 1,
 \})
--- a/ale_linters/cypher/cypher_lint.vim
+++ b/ale_linters/cypher/cypher_lint.vim
@@ -1,26 +0,0 @@
-" Author: Francisco Lopes <francisco@oblita.com>
-" Description: Linting for Neo4j's Cypher
-
-function! ale_linters#cypher#cypher_lint#Handle(buffer, lines) abort
-    let l:pattern = '\v^([a-zA-Z]?:?[^:]+):(\d+):(\d+): (.*)$'
-    let l:output = []
-
-    for l:match in ale#util#GetMatches(a:lines, l:pattern)
-        call add(l:output, {
-        \   'lnum': l:match[2] + 0,
-        \   'col': l:match[3] + 0,
-        \   'text': l:match[4],
-        \   'type': 'E',
-        \})
-    endfor
-
-    return l:output
-endfunction
-
-call ale#linter#Define('cypher', {
-\   'name': 'cypher_lint',
-\   'executable': 'cypher-lint',
-\   'command': 'cypher-lint',
-\   'output_stream': 'stderr',
-\   'callback': 'ale_linters#cypher#cypher_lint#Handle',
-\})
--- a/ale_linters/d/dls.vim
+++ b/ale_linters/d/dls.vim
@@ -16,7 +16,7 @@ endfunction
 call ale#linter#Define('d', {
 \   'name': 'dls',
 \   'lsp': 'stdio',
-\   'executable': function('ale_linters#d#dls#GetExecutable'),
-\   'command': function('ale_linters#d#dls#GetExecutable'),
-\   'project_root': function('ale_linters#d#dls#FindProjectRoot'),
+\   'executable_callback': 'ale_linters#d#dls#GetExecutable',
+\   'command_callback': 'ale_linters#d#dls#GetExecutable',
+\   'project_root_callback': 'ale_linters#d#dls#FindProjectRoot',
 \})
--- a/ale_linters/d/dmd.vim
+++ b/ale_linters/d/dmd.vim
@@ -1,7 +1,7 @@
 " Author: w0rp <devw0rp@gmail.com>
 " Description: "dmd for D files"

-function! ale_linters#d#dmd#GetDUBCommand(buffer) abort
+function! ale_linters#d#dmd#DUBCommand(buffer) abort
    " If we can't run dub, then skip this command.
    if !executable('dub')
        " Returning an empty string skips to the DMD command.
@@ -21,18 +21,7 @@ function! ale_linters#d#dmd#GetDUBCommand(buffer) abort
    \   . ' && dub describe --import-paths'
 endfunction

-function! ale_linters#d#dmd#RunDUBCommand(buffer) abort
-    let l:command = ale_linters#d#dmd#GetDUBCommand(a:buffer)
-
-    if empty(l:command)
-        " If we can't run DUB, just run DMD.
-        return ale_linters#d#dmd#DMDCommand(a:buffer, [], {})
-    endif
-
-    return ale#command#Run(a:buffer, l:command, function('ale_linters#d#dmd#DMDCommand'))
-endfunction
-
-function! ale_linters#d#dmd#DMDCommand(buffer, dub_output, meta) abort
+function! ale_linters#d#dmd#DMDCommand(buffer, dub_output) abort
    let l:import_list = []

    " Build a list of import paths generated from DUB, if available.
@@ -68,7 +57,9 @@ endfunction
 call ale#linter#Define('d', {
 \   'name': 'dmd',
 \   'executable': 'dmd',
-\   'command': function('ale_linters#d#dmd#RunDUBCommand'),
+\   'command_chain': [
+\       {'callback': 'ale_linters#d#dmd#DUBCommand', 'output_stream': 'stdout'},
+\       {'callback': 'ale_linters#d#dmd#DMDCommand', 'output_stream': 'stderr'},
+\   ],
 \   'callback': 'ale_linters#d#dmd#Handle',
-\   'output_stream': 'stderr',
 \})
--- a/ale_linters/dart/dartanalyzer.vim
+++ b/ale_linters/dart/dartanalyzer.vim
@@ -29,8 +29,8 @@ endfunction

 call ale#linter#Define('dart', {
 \   'name': 'dartanalyzer',
-\   'executable': {b -> ale#Var(b, 'dart_dartanalyzer_executable')},
-\   'command': function('ale_linters#dart#dartanalyzer#GetCommand'),
+\   'executable_callback': ale#VarFunc('dart_dartanalyzer_executable'),
+\   'command_callback': 'ale_linters#dart#dartanalyzer#GetCommand',
 \   'callback': 'ale_linters#dart#dartanalyzer#Handle',
 \   'lint_file': 1,
 \})
--- a/ale_linters/dart/language_server.vim
+++ b/ale_linters/dart/language_server.vim
@@ -14,7 +14,7 @@ endfunction
 call ale#linter#Define('dart', {
 \   'name': 'language_server',
 \   'lsp': 'stdio',
-\   'executable': {b -> ale#Var(b, 'dart_language_server_executable')},
+\   'executable_callback': ale#VarFunc('dart_language_server_executable'),
 \   'command': '%e',
-\   'project_root': function('ale_linters#dart#language_server#GetProjectRoot'),
+\   'project_root_callback': 'ale_linters#dart#language_server#GetProjectRoot',
 \})
--- a/ale_linters/dockerfile/dockerfile_lint.vim
+++ b/ale_linters/dockerfile/dockerfile_lint.vim
@@ -55,7 +55,7 @@ endfunction

 call ale#linter#Define('dockerfile', {
 \   'name': 'dockerfile_lint',
-\   'executable': {b -> ale#Var(b, 'dockerfile_dockerfile_lint_executable')},
-\   'command': function('ale_linters#dockerfile#dockerfile_lint#GetCommand'),
+\   'executable_callback': ale#VarFunc('dockerfile_dockerfile_lint_executable'),
+\   'command_callback': 'ale_linters#dockerfile#dockerfile_lint#GetCommand',
 \   'callback': 'ale_linters#dockerfile#dockerfile_lint#Handle',
 \})
--- a/ale_linters/dockerfile/hadolint.vim
+++ b/ale_linters/dockerfile/hadolint.vim
@@ -93,7 +93,7 @@ endfunction

 call ale#linter#Define('dockerfile', {
 \   'name': 'hadolint',
-\   'executable': function('ale_linters#dockerfile#hadolint#GetExecutable'),
-\   'command': function('ale_linters#dockerfile#hadolint#GetCommand'),
+\   'executable_callback': 'ale_linters#dockerfile#hadolint#GetExecutable',
+\   'command_callback': 'ale_linters#dockerfile#hadolint#GetCommand',
 \   'callback': 'ale_linters#dockerfile#hadolint#Handle',
 \})
--- a/ale_linters/elixir/credo.vim
+++ b/ale_linters/elixir/credo.vim
@@ -37,27 +37,16 @@ function! ale_linters#elixir#credo#Handle(buffer, lines) abort
    return l:output
 endfunction

-function! ale_linters#elixir#credo#GetMode() abort
-    if get(g:, 'ale_elixir_credo_strict', 0)
-        return '--strict'
-    else
-        return 'suggest'
-    endif
-endfunction
-
 function! ale_linters#elixir#credo#GetCommand(buffer) abort
    let l:project_root = ale#handlers#elixir#FindMixProjectRoot(a:buffer)
-    let l:mode = ale_linters#elixir#credo#GetMode()

    return ale#path#CdString(l:project_root)
-    \ . 'mix help credo && '
-    \ . 'mix credo ' . ale_linters#elixir#credo#GetMode()
-    \ . ' --format=flycheck --read-from-stdin %s'
+    \ . ' mix help credo && mix credo suggest --format=flycheck --read-from-stdin %s'
 endfunction

 call ale#linter#Define('elixir', {
 \   'name': 'credo',
 \   'executable': 'mix',
-\   'command': function('ale_linters#elixir#credo#GetCommand'),
+\   'command_callback': 'ale_linters#elixir#credo#GetCommand',
 \   'callback': 'ale_linters#elixir#credo#Handle',
 \})
--- a/ale_linters/elixir/dialyxir.vim
+++ b/ale_linters/elixir/dialyxir.vim
@@ -35,7 +35,7 @@ endfunction
 call ale#linter#Define('elixir', {
 \   'name': 'dialyxir',
 \   'executable': 'mix',
-\   'command': function('ale_linters#elixir#dialyxir#GetCommand'),
+\   'command_callback': 'ale_linters#elixir#dialyxir#GetCommand',
 \   'callback': 'ale_linters#elixir#dialyxir#Handle',
 \})

--- a/ale_linters/elixir/dogma.vim
+++ b/ale_linters/elixir/dogma.vim
@@ -39,7 +39,7 @@ endfunction
 call ale#linter#Define('elixir', {
 \   'name': 'dogma',
 \   'executable': 'mix',
-\   'command': function('ale_linters#elixir#dogma#GetCommand'),
+\   'command_callback': 'ale_linters#elixir#dogma#GetCommand',
 \   'lint_file': 1,
 \   'callback': 'ale_linters#elixir#dogma#Handle',
 \})
--- a/ale_linters/elixir/elixir_ls.vim
+++ b/ale_linters/elixir/elixir_ls.vim
@@ -6,7 +6,7 @@ call ale#Set('elixir_elixir_ls_config', {})

 function! ale_linters#elixir#elixir_ls#GetExecutable(buffer) abort
    let l:dir = ale#path#Simplify(ale#Var(a:buffer, 'elixir_elixir_ls_release'))
-    let l:cmd = has('win32') ? '\language_server.bat' : '/language_server.sh'
+    let l:cmd = ale#Has('win32') ? '\language_server.bat' : '/language_server.sh'

    return l:dir . l:cmd
 endfunction
@@ -14,8 +14,8 @@ endfunction
 call ale#linter#Define('elixir', {
 \   'name': 'elixir-ls',
 \   'lsp': 'stdio',
-\   'executable': function('ale_linters#elixir#elixir_ls#GetExecutable'),
-\   'command': function('ale_linters#elixir#elixir_ls#GetExecutable'),
-\   'project_root': function('ale#handlers#elixir#FindMixUmbrellaRoot'),
-\   'lsp_config': {b -> ale#Var(b, 'elixir_elixir_ls_config')},
+\   'executable_callback': 'ale_linters#elixir#elixir_ls#GetExecutable',
+\   'command_callback': 'ale_linters#elixir#elixir_ls#GetExecutable',
+\   'project_root_callback': 'ale#handlers#elixir#FindMixUmbrellaRoot',
+\   'lsp_config_callback': ale#VarFunc('elixir_elixir_ls_config'),
 \})
--- a/ale_linters/elixir/mix.vim
+++ b/ale_linters/elixir/mix.vim
@@ -32,7 +32,7 @@ endfunction
 function! ale_linters#elixir#mix#GetCommand(buffer) abort
    let l:project_root = ale#handlers#elixir#FindMixProjectRoot(a:buffer)

-    let l:temp_dir = ale#command#CreateDirectory(a:buffer)
+    let l:temp_dir = ale#engine#CreateDirectory(a:buffer)

    let l:mix_build_path = has('win32')
    \   ? 'set MIX_BUILD_PATH=' . ale#Escape(l:temp_dir) . ' &&'
@@ -46,7 +46,7 @@ endfunction
 call ale#linter#Define('elixir', {
 \   'name': 'mix',
 \   'executable': 'mix',
-\   'command': function('ale_linters#elixir#mix#GetCommand'),
+\   'command_callback': 'ale_linters#elixir#mix#GetCommand',
 \   'callback': 'ale_linters#elixir#mix#Handle',
 \   'lint_file': 1,
 \})
--- a/ale_linters/elm/elm_lsp.vim
+++ b/ale_linters/elm/elm_lsp.vim
@@ -1,22 +0,0 @@
-" Author: antew - https://github.com/antew
-" Description: LSP integration for elm, currently supports diagnostics (linting)
-
-call ale#Set('elm_lsp_executable', 'elm-lsp')
-call ale#Set('elm_lsp_use_global', get(g:, 'ale_use_global_executables', 0))
-
-function! elm_lsp#GetRootDir(buffer) abort
-    let l:elm_json = ale#path#FindNearestFile(a:buffer, 'elm.json')
-
-    return !empty(l:elm_json) ? fnamemodify(l:elm_json, ':p:h') : ''
-endfunction
-
-call ale#linter#Define('elm', {
-\   'name': 'elm_lsp',
-\   'lsp': 'stdio',
-\   'executable': {b -> ale#node#FindExecutable(b, 'elm_lsp', [
-\       'node_modules/.bin/elm-lsp',
-\   ])},
-\   'command': '%e --stdio',
-\   'project_root': function('elm_lsp#GetRootDir'),
-\   'language': 'elm'
-\})
--- a/ale_linters/elm/make.vim
+++ b/ale_linters/elm/make.vim
@@ -137,7 +137,9 @@ function! ale_linters#elm#make#ParseMessageItem(item) abort
    endif
 endfunction

-function! ale_linters#elm#make#GetPackageFile(buffer) abort
+" Return the command to execute the linter in the projects directory.
+" If it doesn't, then this will fail when imports are needed.
+function! ale_linters#elm#make#GetCommand(buffer) abort
    let l:elm_json = ale#path#FindNearestFile(a:buffer, 'elm.json')

    if empty(l:elm_json)
@@ -145,96 +147,26 @@ function! ale_linters#elm#make#GetPackageFile(buffer) abort
        let l:elm_json = ale#path#FindNearestFile(a:buffer, 'elm-package.json')
    endif

-    return l:elm_json
-endfunction
-
-function! ale_linters#elm#make#IsVersionGte19(buffer) abort
-    let l:elm_json = ale_linters#elm#make#GetPackageFile(a:buffer)
-
-    if l:elm_json =~# '-package'
-        return 0
-    else
-        return 1
-    endif
-endfunction
-
-function! ale_linters#elm#make#GetRootDir(buffer) abort
-    let l:elm_json = ale_linters#elm#make#GetPackageFile(a:buffer)
-
    if empty(l:elm_json)
-        return ''
-    else
-        return fnamemodify(l:elm_json, ':p:h')
-    endif
-endfunction
-
-function! ale_linters#elm#make#IsTest(buffer) abort
-    let l:root_dir = ale_linters#elm#make#GetRootDir(a:buffer)
-
-    if empty(l:root_dir)
-        return 0
-    endif
-
-    let l:tests_dir = join([l:root_dir, 'tests', ''], has('win32') ? '\' : '/')
-
-    let l:buffer_path = fnamemodify(bufname(a:buffer), ':p')
-
-    if stridx(l:buffer_path, l:tests_dir) == 0
-        return 1
-    else
-        return 0
-    endif
-endfunction
-
-" Return the command to execute the linter in the projects directory.
-" If it doesn't, then this will fail when imports are needed.
-function! ale_linters#elm#make#GetCommand(buffer) abort
-    let l:executable = ale_linters#elm#make#GetExecutable(a:buffer)
-    let l:root_dir = ale_linters#elm#make#GetRootDir(a:buffer)
-    let l:is_v19 = ale_linters#elm#make#IsVersionGte19(a:buffer)
-    let l:is_using_elm_test = l:executable =~# 'elm-test$'
-
-    if empty(l:root_dir)
        let l:dir_set_cmd = ''
    else
+        let l:root_dir = fnamemodify(l:elm_json, ':p:h')
        let l:dir_set_cmd = 'cd ' . ale#Escape(l:root_dir) . ' && '
    endif

-    " elm-test needs to know the path of elm-make if elm isn't installed globally.
-    " https://github.com/rtfeldman/node-test-runner/blob/57728f10668f2d2ab3179e7e3208bcfa9a1f19aa/README.md#--compiler
-    if l:is_v19 && l:is_using_elm_test
-        let l:elm_make_executable = ale#node#FindExecutable(a:buffer, 'elm_make', ['node_modules/.bin/elm'])
-        let l:elm_test_compiler_flag = ' --compiler ' . l:elm_make_executable . ' '
-    else
-        let l:elm_test_compiler_flag = ' '
-    endif
-
    " The elm compiler, at the time of this writing, uses '/dev/null' as
    " a sort of flag to tell the compiler not to generate an output file,
    " which is why this is hard coded here.
    " Source: https://github.com/elm-lang/elm-compiler/blob/19d5a769b30ec0b2fc4475985abb4cd94cd1d6c3/builder/src/Generate/Output.hs#L253
-    return l:dir_set_cmd . '%e make --report=json --output=/dev/null' . l:elm_test_compiler_flag . '%t'
-endfunction
-
-function! ale_linters#elm#make#GetExecutable(buffer) abort
-    let l:is_test = ale_linters#elm#make#IsTest(a:buffer)
-    let l:is_v19 = ale_linters#elm#make#IsVersionGte19(a:buffer)
-
-    if l:is_test && l:is_v19
-        return ale#node#FindExecutable(
-        \   a:buffer,
-        \   'elm_make',
-        \   ['node_modules/.bin/elm-test', 'node_modules/.bin/elm']
-        \)
-    else
-        return ale#node#FindExecutable(a:buffer, 'elm_make', ['node_modules/.bin/elm'])
-    endif
+    return l:dir_set_cmd . '%e make --report=json --output=/dev/null %t'
 endfunction

 call ale#linter#Define('elm', {
 \   'name': 'make',
-\   'executable': function('ale_linters#elm#make#GetExecutable'),
+\   'executable_callback': ale#node#FindExecutableFunc('elm_make', [
+\       'node_modules/.bin/elm',
+\   ]),
 \   'output_stream': 'both',
-\   'command': function('ale_linters#elm#make#GetCommand'),
+\   'command_callback': 'ale_linters#elm#make#GetCommand',
 \   'callback': 'ale_linters#elm#make#Handle'
 \})
--- a/ale_linters/erlang/dialyzer.vim
+++ b/ale_linters/erlang/dialyzer.vim
@@ -1,93 +0,0 @@
-" Author: Autoine Gagne - https://github.com/AntoineGagne
-" Description: Define a checker that runs dialyzer on Erlang files.
-
-let g:ale_erlang_dialyzer_executable =
-\   get(g:, 'ale_erlang_dialyzer_executable', 'dialyzer')
-let g:ale_erlang_dialyzer_plt_file =
-\   get(g:, 'ale_erlang_dialyzer_plt_file', '')
-let g:ale_erlang_dialyzer_rebar3_profile =
-\   get(g:, 'ale_erlang_dialyzer_rebar3_profile', 'default')
-
-function! ale_linters#erlang#dialyzer#GetRebar3Profile(buffer) abort
-    return ale#Var(a:buffer, 'erlang_dialyzer_rebar3_profile')
-endfunction
-
-function! ale_linters#erlang#dialyzer#FindPlt(buffer) abort
-    let l:plt_file = ''
-    let l:rebar3_profile = ale_linters#erlang#dialyzer#GetRebar3Profile(a:buffer)
-    let l:plt_file_directory = ale#path#FindNearestDirectory(a:buffer, '_build' . l:rebar3_profile)
-
-    if !empty(l:plt_file_directory)
-        let l:plt_file = split(globpath(l:plt_file_directory, '/*_plt'), '\n')
-    endif
-
-    if !empty(l:plt_file)
-        return l:plt_file[0]
-    endif
-
-    if !empty($REBAR_PLT_DIR)
-        return expand('$REBAR_PLT_DIR/dialyzer/plt')
-    endif
-
-    return expand('$HOME/.dialyzer_plt')
-endfunction
-
-function! ale_linters#erlang#dialyzer#GetPlt(buffer) abort
-    let l:plt_file = ale#Var(a:buffer, 'erlang_dialyzer_plt_file')
-
-    if !empty(l:plt_file)
-        return l:plt_file
-    endif
-
-    return ale_linters#erlang#dialyzer#FindPlt(a:buffer)
-endfunction
-
-function! ale_linters#erlang#dialyzer#GetExecutable(buffer) abort
-    return ale#Var(a:buffer, 'erlang_dialyzer_executable')
-endfunction
-
-function! ale_linters#erlang#dialyzer#GetCommand(buffer) abort
-    let l:command = ale#Escape(ale_linters#erlang#dialyzer#GetExecutable(a:buffer))
-    \   . ' -n'
-    \   . ' --plt ' . ale#Escape(ale_linters#erlang#dialyzer#GetPlt(a:buffer))
-    \   . ' -Wunmatched_returns'
-    \   . ' -Werror_handling'
-    \   . ' -Wrace_conditions'
-    \   . ' -Wunderspecs'
-    \   . ' %s'
-
-    return l:command
-endfunction
-
-function! ale_linters#erlang#dialyzer#Handle(buffer, lines) abort
-    " Match patterns like the following:
-    "
-    " erl_tidy_prv_fmt.erl:3: Callback info about the provider behaviour is not available
-    let l:pattern = '^\S\+:\(\d\+\): \(.\+\)$'
-    let l:output = []
-
-    for l:line in a:lines
-        let l:match = matchlist(l:line, l:pattern)
-
-        if len(l:match) != 0
-            let l:code = l:match[2]
-
-            call add(l:output, {
-            \   'lnum': str2nr(l:match[1]),
-            \   'lcol': 0,
-            \   'text': l:code,
-            \   'type': 'W'
-            \})
-        endif
-    endfor
-
-    return l:output
-endfunction
-
-call ale#linter#Define('erlang', {
-\   'name': 'dialyzer',
-\   'executable': function('ale_linters#erlang#dialyzer#GetExecutable'),
-\   'command': function('ale_linters#erlang#dialyzer#GetCommand'),
-\   'callback': function('ale_linters#erlang#dialyzer#Handle'),
-\   'lint_file': 1
-\})
--- a/ale_linters/erlang/erlc.vim
+++ b/ale_linters/erlang/erlc.vim
@@ -4,7 +4,7 @@ let g:ale_erlang_erlc_options = get(g:, 'ale_erlang_erlc_options', '')

 function! ale_linters#erlang#erlc#GetCommand(buffer) abort
    let l:output_file = ale#util#Tempname()
-    call ale#command#ManageFile(a:buffer, l:output_file)
+    call ale#engine#ManageFile(a:buffer, l:output_file)

    return 'erlc -o ' . ale#Escape(l:output_file)
    \   . ' ' . ale#Var(a:buffer, 'erlang_erlc_options')
@@ -91,6 +91,6 @@ endfunction
 call ale#linter#Define('erlang', {
 \   'name': 'erlc',
 \   'executable': 'erlc',
-\   'command': function('ale_linters#erlang#erlc#GetCommand'),
+\   'command_callback': 'ale_linters#erlang#erlc#GetCommand',
 \   'callback': 'ale_linters#erlang#erlc#Handle',
 \})
--- a/ale_linters/erlang/syntaxerl.vim
+++ b/ale_linters/erlang/syntaxerl.vim
@@ -3,17 +3,7 @@

 call ale#Set('erlang_syntaxerl_executable', 'syntaxerl')

-function! ale_linters#erlang#syntaxerl#RunHelpCommand(buffer) abort
-    let l:executable = ale#Var(a:buffer, 'erlang_syntaxerl_executable')
-
-    return ale#command#Run(
-    \   a:buffer,
-    \   ale#Escape(l:executable) . ' -h',
-    \   function('ale_linters#erlang#syntaxerl#GetCommand'),
-    \)
-endfunction
-
-function! ale_linters#erlang#syntaxerl#GetCommand(buffer, output, meta) abort
+function! ale_linters#erlang#syntaxerl#GetCommand(buffer, output) abort
    let l:use_b_option = match(a:output, '\C\V-b, --base\>') > -1

    return '%e' . (l:use_b_option ? ' -b %s %t' : ' %t')
@@ -36,7 +26,10 @@ endfunction

 call ale#linter#Define('erlang', {
 \   'name': 'syntaxerl',
-\   'executable': {b -> ale#Var(b, 'erlang_syntaxerl_executable')},
-\   'command': {b -> ale_linters#erlang#syntaxerl#RunHelpCommand(b)},
+\   'executable_callback': ale#VarFunc('erlang_syntaxerl_executable'),
+\   'command_chain': [
+\       {'callback': {-> '%e -h'}},
+\       {'callback': 'ale_linters#erlang#syntaxerl#GetCommand'},
+\   ],
 \   'callback': 'ale_linters#erlang#syntaxerl#Handle',
 \})
--- a/ale_linters/eruby/erb.vim
+++ b/ale_linters/eruby/erb.vim
@@ -19,7 +19,7 @@ call ale#linter#Define('eruby', {
 \   'aliases': ['erubylint'],
 \   'executable': 'erb',
 \   'output_stream': 'stderr',
-\   'command': function('ale_linters#eruby#erb#GetCommand'),
+\   'command_callback': 'ale_linters#eruby#erb#GetCommand',
 \   'callback': 'ale#handlers#ruby#HandleSyntaxErrors',
 \})

--- a/ale_linters/eruby/erubi.vim
+++ b/ale_linters/eruby/erubi.vim
@@ -1,10 +1,14 @@
 " Author: Eddie Lebow https://github.com/elebow
 " Description: eruby checker using `erubi`

-function! ale_linters#eruby#erubi#GetCommand(buffer, output, meta) abort
+function! ale_linters#eruby#erubi#CheckErubi(buffer) abort
+    return 'ruby -r erubi/capture_end -e ' . ale#Escape('""')
+endfunction
+
+function! ale_linters#eruby#erubi#GetCommand(buffer, check_erubi_output) abort
    let l:rails_root = ale#ruby#FindRailsRoot(a:buffer)

-    if !empty(a:output)
+    if (!empty(a:check_erubi_output))
        " The empty command in CheckErubi returns nothing if erubi runs and
        " emits an error if erubi is not present
        return ''
@@ -23,10 +27,9 @@ endfunction
 call ale#linter#Define('eruby', {
 \   'name': 'erubi',
 \   'executable': 'ruby',
-\   'command': {buffer -> ale#command#Run(
-\       buffer,
-\       'ruby -r erubi/capture_end -e ' . ale#Escape('""'),
-\       function('ale_linters#eruby#erubi#GetCommand'),
-\   )},
+\   'command_chain': [
+\     {'callback': 'ale_linters#eruby#erubi#CheckErubi'},
+\     {'callback': 'ale_linters#eruby#erubi#GetCommand', 'output_stream': 'stderr'},
+\   ],
 \   'callback': 'ale#handlers#ruby#HandleSyntaxErrors',
 \})
--- a/ale_linters/eruby/erubis.vim
+++ b/ale_linters/eruby/erubis.vim
@@ -18,6 +18,6 @@ call ale#linter#Define('eruby', {
 \   'name': 'erubis',
 \   'executable': 'erubis',
 \   'output_stream': 'stderr',
-\   'command': function('ale_linters#eruby#erubis#GetCommand'),
+\   'command_callback': 'ale_linters#eruby#erubis#GetCommand',
 \   'callback': 'ale#handlers#ruby#HandleSyntaxErrors',
 \})
--- a/ale_linters/eruby/ruumba.vim
+++ b/ale_linters/eruby/ruumba.vim
@@ -56,7 +56,7 @@ endfunction

 call ale#linter#Define('eruby', {
 \   'name': 'ruumba',
-\   'executable': {b -> ale#Var(b, 'eruby_ruumba_executable')},
-\   'command': function('ale_linters#eruby#ruumba#GetCommand'),
+\   'executable_callback': ale#VarFunc('eruby_ruumba_executable'),
+\   'command_callback': 'ale_linters#eruby#ruumba#GetCommand',
 \   'callback': 'ale_linters#eruby#ruumba#Handle',
 \})
--- a/ale_linters/fortran/gcc.vim
+++ b/ale_linters/fortran/gcc.vim
@@ -66,7 +66,7 @@ endfunction
 call ale#linter#Define('fortran', {
 \   'name': 'gcc',
 \   'output_stream': 'stderr',
-\   'executable': {b -> ale#Var(b, 'fortran_gcc_executable')},
-\   'command': function('ale_linters#fortran#gcc#GetCommand'),
+\   'executable_callback': ale#VarFunc('fortran_gcc_executable'),
+\   'command_callback': 'ale_linters#fortran#gcc#GetCommand',
 \   'callback': 'ale_linters#fortran#gcc#Handle',
 \})
--- a/ale_linters/fortran/language_server.vim
+++ b/ale_linters/fortran/language_server.vim
@@ -13,7 +13,7 @@ endfunction
 call ale#linter#Define('fortran', {
 \   'name': 'language_server',
 \   'lsp': 'stdio',
-\   'executable': {b -> ale#Var(b, 'fortran_language_server_executable')},
+\   'executable_callback': ale#VarFunc('fortran_language_server_executable'),
 \   'command': '%e',
-\   'project_root': function('ale_linters#fortran#language_server#GetProjectRoot'),
+\   'project_root_callback': 'ale_linters#fortran#language_server#GetProjectRoot',
 \})
--- a/ale_linters/fuse/fusionlint.vim
+++ b/ale_linters/fuse/fusionlint.vim
@@ -27,7 +27,7 @@ endfunction

 call ale#linter#Define('fuse', {
 \   'name': 'fusionlint',
-\   'executable': {b -> ale#Var(b, 'fuse_fusionlint_executable')},
-\   'command': function('ale_linters#fuse#fusionlint#GetCommand'),
+\   'executable_callback': ale#VarFunc('fuse_fusionlint_executable'),
+\   'command_callback': 'ale_linters#fuse#fusionlint#GetCommand',
 \   'callback': 'ale_linters#fuse#fusionlint#Handle',
 \})
--- a/ale_linters/gitcommit/gitlint.vim
+++ b/ale_linters/gitcommit/gitlint.vim
@@ -45,7 +45,7 @@ endfunction
 call ale#linter#Define('gitcommit', {
 \   'name': 'gitlint',
 \   'output_stream': 'stderr',
-\   'executable': function('ale_linters#gitcommit#gitlint#GetExecutable'),
-\   'command': function('ale_linters#gitcommit#gitlint#GetCommand'),
+\   'executable_callback': 'ale_linters#gitcommit#gitlint#GetExecutable',
+\   'command_callback': 'ale_linters#gitcommit#gitlint#GetCommand',
 \   'callback': 'ale_linters#gitcommit#gitlint#Handle',
 \})
--- a/ale_linters/glsl/glslang.vim
+++ b/ale_linters/glsl/glslang.vim
@@ -34,7 +34,7 @@ endfunction

 call ale#linter#Define('glsl', {
 \   'name': 'glslang',
-\   'executable': {b -> ale#Var(b, 'glsl_glslang_executable')},
-\   'command': function('ale_linters#glsl#glslang#GetCommand'),
+\   'executable_callback': ale#VarFunc('glsl_glslang_executable'),
+\   'command_callback': 'ale_linters#glsl#glslang#GetCommand',
 \   'callback': 'ale_linters#glsl#glslang#Handle',
 \})
--- a/ale_linters/glsl/glslls.vim
+++ b/ale_linters/glsl/glslls.vim
@@ -24,7 +24,7 @@ endfunction
 call ale#linter#Define('glsl', {
 \   'name': 'glslls',
 \   'lsp': 'stdio',
-\   'executable': {b -> ale#Var(b, 'glsl_glslls_executable')},
-\   'command': function('ale_linters#glsl#glslls#GetCommand'),
-\   'project_root': function('ale_linters#glsl#glslls#GetProjectRoot'),
+\   'executable_callback': ale#VarFunc('glsl_glslls_executable'),
+\   'command_callback': 'ale_linters#glsl#glslls#GetCommand',
+\   'project_root_callback': 'ale_linters#glsl#glslls#GetProjectRoot',
 \})
--- a/ale_linters/go/bingo.vim
+++ b/ale_linters/go/bingo.vim
@@ -1,29 +0,0 @@
-" Author: Jerko Steiner <https://github.com/jeremija>
-" Description: https://github.com/saibing/bingo
-
-call ale#Set('go_bingo_executable', 'bingo')
-call ale#Set('go_bingo_options', '--mode stdio')
-
-function! ale_linters#go#bingo#GetCommand(buffer) abort
-    return '%e' . ale#Pad(ale#Var(a:buffer, 'go_bingo_options'))
-endfunction
-
-function! ale_linters#go#bingo#FindProjectRoot(buffer) abort
-    let l:project_root = ale#path#FindNearestFile(a:buffer, 'go.mod')
-    let l:mods = ':h'
-
-    if empty(l:project_root)
-        let l:project_root = ale#path#FindNearestDirectory(a:buffer, '.git')
-        let l:mods = ':h:h'
-    endif
-
-    return !empty(l:project_root) ? fnamemodify(l:project_root, l:mods) : ''
-endfunction
-
-call ale#linter#Define('go', {
-\   'name': 'bingo',
-\   'lsp': 'stdio',
-\   'executable': {b -> ale#Var(b, 'go_bingo_executable')},
-\   'command': function('ale_linters#go#bingo#GetCommand'),
-\   'project_root': function('ale_linters#go#bingo#FindProjectRoot'),
-\})
--- a/ale_linters/go/gobuild.vim
+++ b/ale_linters/go/gobuild.vim
@@ -48,8 +48,8 @@ endfunction
 call ale#linter#Define('go', {
 \   'name': 'gobuild',
 \   'aliases': ['go build'],
-\   'executable': {b -> ale#Var(b, 'go_go_executable')},
-\   'command': function('ale_linters#go#gobuild#GetCommand'),
+\   'executable_callback': ale#VarFunc('go_go_executable'),
+\   'command_callback': 'ale_linters#go#gobuild#GetCommand',
 \   'output_stream': 'stderr',
 \   'callback': 'ale_linters#go#gobuild#Handler',
 \   'lint_file': 1,
--- a/ale_linters/go/golangci_lint.vim
+++ b/ale_linters/go/golangci_lint.vim
@@ -49,8 +49,8 @@ endfunction

 call ale#linter#Define('go', {
 \   'name': 'golangci-lint',
-\   'executable': {b -> ale#Var(b, 'go_golangci_lint_executable')},
-\   'command': function('ale_linters#go#golangci_lint#GetCommand'),
+\   'executable_callback': ale#VarFunc('go_golangci_lint_executable'),
+\   'command_callback': 'ale_linters#go#golangci_lint#GetCommand',
 \   'callback': 'ale_linters#go#golangci_lint#Handler',
 \   'lint_file': 1,
 \})
--- a/ale_linters/go/golint.vim
+++ b/ale_linters/go/golint.vim
@@ -15,7 +15,7 @@ endfunction
 call ale#linter#Define('go', {
 \   'name': 'golint',
 \   'output_stream': 'both',
-\   'executable': {b -> ale#Var(b, 'go_golint_executable')},
-\   'command': function('ale_linters#go#golint#GetCommand'),
+\   'executable_callback': ale#VarFunc('go_golint_executable'),
+\   'command_callback': 'ale_linters#go#golint#GetCommand',
 \   'callback': 'ale#handlers#unix#HandleAsWarning',
 \})
--- a/ale_linters/go/gometalinter.vim
+++ b/ale_linters/go/gometalinter.vim
@@ -50,8 +50,8 @@ endfunction

 call ale#linter#Define('go', {
 \   'name': 'gometalinter',
-\   'executable': {b -> ale#Var(b, 'go_gometalinter_executable')},
-\   'command': function('ale_linters#go#gometalinter#GetCommand'),
+\   'executable_callback': ale#VarFunc('go_gometalinter_executable'),
+\   'command_callback': 'ale_linters#go#gometalinter#GetCommand',
 \   'callback': 'ale_linters#go#gometalinter#Handler',
 \   'lint_file': 1,
 \})
--- a/ale_linters/go/gopls.vim
+++ b/ale_linters/go/gopls.vim
@@ -1,30 +0,0 @@
-" Author: w0rp <devw0rp@gmail.com>
-" Author: Jerko Steiner <https://github.com/jeremija>
-" Description: https://github.com/saibing/gopls
-
-call ale#Set('go_gopls_executable', 'gopls')
-call ale#Set('go_gopls_options', '--mode stdio')
-
-function! ale_linters#go#gopls#GetCommand(buffer) abort
-    return '%e' . ale#Pad(ale#Var(a:buffer, 'go_gopls_options'))
-endfunction
-
-function! ale_linters#go#gopls#FindProjectRoot(buffer) abort
-    let l:project_root = ale#path#FindNearestFile(a:buffer, 'go.mod')
-    let l:mods = ':h'
-
-    if empty(l:project_root)
-        let l:project_root = ale#path#FindNearestDirectory(a:buffer, '.git')
-        let l:mods = ':h:h'
-    endif
-
-    return !empty(l:project_root) ? fnamemodify(l:project_root, l:mods) : ''
-endfunction
-
-call ale#linter#Define('go', {
-\   'name': 'gopls',
-\   'lsp': 'stdio',
-\   'executable': {b -> ale#Var(b, 'go_gopls_executable')},
-\   'command': function('ale_linters#go#gopls#GetCommand'),
-\   'project_root': function('ale_linters#go#gopls#FindProjectRoot'),
-\})
--- a/ale_linters/go/gosimple.vim
+++ b/ale_linters/go/gosimple.vim
@@ -8,7 +8,7 @@ endfunction
 call ale#linter#Define('go', {
 \   'name': 'gosimple',
 \   'executable': 'gosimple',
-\   'command': function('ale_linters#go#gosimple#GetCommand'),
+\   'command_callback': 'ale_linters#go#gosimple#GetCommand',
 \   'callback': 'ale#handlers#go#Handler',
 \   'output_stream': 'both',
 \   'lint_file': 1,
--- a/ale_linters/go/gotype.vim
+++ b/ale_linters/go/gotype.vim
@@ -6,14 +6,14 @@ function! ale_linters#go#gotype#GetCommand(buffer) abort
        return ''
    endif

-    return ale#path#BufferCdString(a:buffer) . ' gotype -e .'
+    return ale#path#BufferCdString(a:buffer) . ' gotype .'
 endfunction

 call ale#linter#Define('go', {
 \   'name': 'gotype',
 \   'output_stream': 'stderr',
 \   'executable': 'gotype',
-\   'command': function('ale_linters#go#gotype#GetCommand'),
+\   'command_callback': 'ale_linters#go#gotype#GetCommand',
 \   'callback': 'ale#handlers#go#Handler',
 \   'lint_file': 1,
 \})
--- a/ale_linters/go/govet.vim
+++ b/ale_linters/go/govet.vim
@@ -20,8 +20,8 @@ call ale#linter#Define('go', {
 \   'name': 'govet',
 \   'aliases': ['go vet'],
 \   'output_stream': 'stderr',
-\   'executable': {b -> ale#Var(b, 'go_go_executable')},
-\   'command': function('ale_linters#go#govet#GetCommand'),
+\   'executable_callback': ale#VarFunc('go_go_executable'),
+\   'command_callback': 'ale_linters#go#govet#GetCommand',
 \   'callback': 'ale#handlers#go#Handler',
 \   'lint_file': 1,
 \})
--- a/ale_linters/go/langserver.vim
+++ b/ale_linters/go/langserver.vim
@@ -10,8 +10,8 @@ function! ale_linters#go#langserver#GetCommand(buffer) abort
    let l:options = substitute(l:options, '-gocodecompletion', '', 'g')
    let l:options = filter(split(l:options, ' '), 'empty(v:val) != 1')

-    if ale#Var(a:buffer, 'completion_enabled')
-        call add(l:options, '-gocodecompletion')
+    if(ale#Var(a:buffer, 'completion_enabled') == 1)
+      call add(l:options, '-gocodecompletion')
    endif

    let l:options = uniq(sort(l:options))
@@ -22,7 +22,7 @@ endfunction
 call ale#linter#Define('go', {
 \   'name': 'golangserver',
 \   'lsp': 'stdio',
-\   'executable': {b -> ale#Var(b, 'go_langserver_executable')},
-\   'command': function('ale_linters#go#langserver#GetCommand'),
-\   'project_root': function('ale#go#FindProjectRoot'),
+\   'executable_callback': ale#VarFunc('go_langserver_executable'),
+\   'command_callback': 'ale_linters#go#langserver#GetCommand',
+\   'project_root_callback': 'ale#go#FindProjectRoot',
 \})
--- a/ale_linters/go/staticcheck.vim
+++ b/ale_linters/go/staticcheck.vim
@@ -26,7 +26,7 @@ endfunction
 call ale#linter#Define('go', {
 \   'name': 'staticcheck',
 \   'executable': 'staticcheck',
-\   'command': function('ale_linters#go#staticcheck#GetCommand'),
+\   'command_callback': 'ale_linters#go#staticcheck#GetCommand',
 \   'callback': 'ale#handlers#go#Handler',
 \   'output_stream': 'both',
 \   'lint_file': 1,
--- a/ale_linters/graphql/eslint.vim
+++ b/ale_linters/graphql/eslint.vim
@@ -3,7 +3,7 @@

 call ale#linter#Define('graphql', {
 \   'name': 'eslint',
-\   'executable': function('ale#handlers#eslint#GetExecutable'),
-\   'command': function('ale#handlers#eslint#GetCommand'),
+\   'executable_callback': 'ale#handlers#eslint#GetExecutable',
+\   'command_callback': 'ale#handlers#eslint#GetCommand',
 \   'callback': 'ale#handlers#eslint#Handle',
 \})
--- a/ale_linters/graphql/gqlint.vim
+++ b/ale_linters/graphql/gqlint.vim
@@ -10,6 +10,6 @@ endfunction
 call ale#linter#Define('graphql', {
 \   'name': 'gqlint',
 \   'executable': 'gqlint',
-\   'command': function('ale_linters#graphql#gqlint#GetCommand'),
+\   'command_callback': 'ale_linters#graphql#gqlint#GetCommand',
 \   'callback': 'ale#handlers#unix#HandleAsWarning',
 \})
--- a/ale_linters/hack/hack.vim
+++ b/ale_linters/hack/hack.vim
@@ -16,7 +16,7 @@ endfunction
 call ale#linter#Define('hack', {
 \   'name': 'hack',
 \   'lsp': 'stdio',
-\   'executable': function('ale_linters#hack#hack#GetExecutable'),
+\   'executable_callback': 'ale_linters#hack#hack#GetExecutable',
 \   'command': '%e lsp --from vim-ale',
-\   'project_root': function('ale_linters#hack#hack#GetProjectRoot'),
+\   'project_root_callback': 'ale_linters#hack#hack#GetProjectRoot',
 \})
--- a/ale_linters/hack/hhast.vim
+++ b/ale_linters/hack/hhast.vim
@@ -9,7 +9,7 @@ function! ale_linters#hack#hhast#GetProjectRoot(buffer) abort
    let l:hhconfig = ale#path#FindNearestFile(a:buffer, '.hhconfig')

    if empty(l:hhconfig)
-        return ''
+      return ''
    endif

    let l:root = fnamemodify(l:hhconfig, ':h')
@@ -33,8 +33,8 @@ endfunction
 call ale#linter#Define('hack', {
 \   'name': 'hhast',
 \   'lsp': 'stdio',
-\   'executable': function('ale_linters#hack#hhast#GetExecutable'),
+\   'executable_callback': 'ale_linters#hack#hhast#GetExecutable',
 \   'command': '%e --mode lsp --from vim-ale',
-\   'project_root': function('ale_linters#hack#hhast#GetProjectRoot'),
-\   'initialization_options': function('ale_linters#hack#hhast#GetInitializationOptions'),
+\   'project_root_callback': 'ale_linters#hack#hhast#GetProjectRoot',
+\   'initialization_options_callback': 'ale_linters#hack#hhast#GetInitializationOptions',
 \})
--- a/ale_linters/haml/hamllint.vim
+++ b/ale_linters/haml/hamllint.vim
@@ -19,7 +19,7 @@ function! ale_linters#haml#hamllint#GetCommand(buffer) abort
    " See https://github.com/brigade/haml-lint/blob/master/lib/haml_lint/linter/rubocop.rb#L89
    "     HamlLint::Linter::RuboCop#rubocop_flags
    if !empty(l:rubocop_config_file_path)
-        if has('win32')
+        if ale#Has('win32')
            let l:prefix = 'set HAML_LINT_RUBOCOP_CONF=' . ale#Escape(l:rubocop_config_file_path) . ' &&'
        else
            let l:prefix = 'HAML_LINT_RUBOCOP_CONF=' . ale#Escape(l:rubocop_config_file_path)
@@ -51,7 +51,7 @@ endfunction

 call ale#linter#Define('haml', {
 \   'name': 'hamllint',
-\   'executable': function('ale_linters#haml#hamllint#GetExecutable'),
-\   'command': function('ale_linters#haml#hamllint#GetCommand'),
+\   'executable_callback': 'ale_linters#haml#hamllint#GetExecutable',
+\   'command_callback': 'ale_linters#haml#hamllint#GetCommand',
 \   'callback': 'ale_linters#haml#hamllint#Handle'
 \})
--- a/ale_linters/handlebars/embertemplatelint.vim
+++ b/ale_linters/handlebars/embertemplatelint.vim
@@ -31,9 +31,9 @@ endfunction

 call ale#linter#Define('handlebars', {
 \   'name': 'ember-template-lint',
-\   'executable': {b -> ale#node#FindExecutable(b, 'handlebars_embertemplatelint', [
+\   'executable_callback': ale#node#FindExecutableFunc('handlebars_embertemplatelint', [
 \       'node_modules/.bin/ember-template-lint',
-\   ])},
+\   ]),
 \   'command': '%e --json %t',
 \   'callback': 'ale_linters#handlebars#embertemplatelint#Handle',
 \})
--- a/ale_linters/haskell/cabal_ghc.vim
+++ b/ale_linters/haskell/cabal_ghc.vim
@@ -4,8 +4,7 @@
 call ale#Set('haskell_cabal_ghc_options', '-fno-code -v0')

 function! ale_linters#haskell#cabal_ghc#GetCommand(buffer) abort
-    return ale#path#BufferCdString(a:buffer)
-    \   . 'cabal exec -- ghc '
+    return 'cabal exec -- ghc '
    \   . ale#Var(a:buffer, 'haskell_cabal_ghc_options')
    \   . ' %t'
 endfunction
@@ -15,6 +14,6 @@ call ale#linter#Define('haskell', {
 \   'aliases': ['cabal-ghc'],
 \   'output_stream': 'stderr',
 \   'executable': 'cabal',
-\   'command': function('ale_linters#haskell#cabal_ghc#GetCommand'),
+\   'command_callback': 'ale_linters#haskell#cabal_ghc#GetCommand',
 \   'callback': 'ale#handlers#haskell#HandleGHCFormat',
 \})
--- a/ale_linters/haskell/ghc.vim
+++ b/ale_linters/haskell/ghc.vim
@@ -13,6 +13,6 @@ call ale#linter#Define('haskell', {
 \   'name': 'ghc',
 \   'output_stream': 'stderr',
 \   'executable': 'ghc',
-\   'command': function('ale_linters#haskell#ghc#GetCommand'),
+\   'command_callback': 'ale_linters#haskell#ghc#GetCommand',
 \   'callback': 'ale#handlers#haskell#HandleGHCFormat',
 \})
--- a/ale_linters/haskell/ghc_mod.vim
+++ b/ale_linters/haskell/ghc_mod.vim
@@ -13,7 +13,7 @@ endfunction
 call ale#linter#Define('haskell', {
 \   'name': 'ghc_mod',
 \   'aliases': ['ghc-mod'],
-\   'executable': {b -> ale#Var(b, 'haskell_ghc_mod_executable')},
-\   'command': function('ale_linters#haskell#ghc_mod#GetCommand'),
+\   'executable_callback': ale#VarFunc('haskell_ghc_mod_executable'),
+\   'command_callback': 'ale_linters#haskell#ghc_mod#GetCommand',
 \   'callback': 'ale#handlers#haskell#HandleGHCFormat',
 \})
--- a/ale_linters/haskell/hdevtools.vim
+++ b/ale_linters/haskell/hdevtools.vim
@@ -14,7 +14,7 @@ endfunction

 call ale#linter#Define('haskell', {
 \   'name': 'hdevtools',
-\   'executable': {b -> ale#Var(b, 'haskell_hdevtools_executable')},
-\   'command': function('ale_linters#haskell#hdevtools#GetCommand'),
+\   'executable_callback': ale#VarFunc('haskell_hdevtools_executable'),
+\   'command_callback': 'ale_linters#haskell#hdevtools#GetCommand',
 \   'callback': 'ale#handlers#haskell#HandleGHCFormat',
 \})
--- a/ale_linters/haskell/hie.vim
+++ b/ale_linters/haskell/hie.vim
@@ -29,13 +29,13 @@ function! ale_linters#haskell#hie#GetCommand(buffer) abort
    let l:executable = ale#Var(a:buffer, 'haskell_hie_executable')

    return ale#handlers#haskell_stack#EscapeExecutable(l:executable, 'hie')
-    \   . ' --lsp'
+\        . ' --lsp'
 endfunction

 call ale#linter#Define('haskell', {
 \   'name': 'hie',
 \   'lsp': 'stdio',
-\   'command': function('ale_linters#haskell#hie#GetCommand'),
-\   'executable': {b -> ale#Var(b, 'haskell_hie_executable')},
-\   'project_root': function('ale_linters#haskell#hie#GetProjectRoot'),
+\   'command_callback': 'ale_linters#haskell#hie#GetCommand',
+\   'executable_callback': ale#VarFunc('haskell_hie_executable'),
+\   'project_root_callback': 'ale_linters#haskell#hie#GetProjectRoot',
 \})
--- a/ale_linters/haskell/hlint.vim
+++ b/ale_linters/haskell/hlint.vim
@@ -40,7 +40,7 @@ endfunction

 call ale#linter#Define('haskell', {
 \   'name': 'hlint',
-\   'executable': {b -> ale#Var(b, 'haskell_hlint_executable')},
-\   'command': function('ale_linters#haskell#hlint#GetCommand') ,
+\   'executable_callback': ale#VarFunc('haskell_hlint_executable'),
+\   'command_callback': 'ale_linters#haskell#hlint#GetCommand' ,
 \   'callback': 'ale_linters#haskell#hlint#Handle',
 \})
--- a/ale_linters/haskell/stack_build.vim
+++ b/ale_linters/haskell/stack_build.vim
@@ -16,8 +16,8 @@ call ale#linter#Define('haskell', {
 \   'name': 'stack_build',
 \   'aliases': ['stack-build'],
 \   'output_stream': 'stderr',
-\   'executable': function('ale#handlers#haskell#GetStackExecutable'),
-\   'command': function('ale_linters#haskell#stack_build#GetCommand'),
+\   'executable_callback': 'ale#handlers#haskell#GetStackExecutable',
+\   'command_callback': 'ale_linters#haskell#stack_build#GetCommand',
 \   'lint_file': 1,
 \   'callback': 'ale#handlers#haskell#HandleGHCFormat',
 \})
--- a/ale_linters/haskell/stack_ghc.vim
+++ b/ale_linters/haskell/stack_ghc.vim
@@ -1,21 +1,11 @@
 " Author: w0rp <devw0rp@gmail.com>
 " Description: ghc for Haskell files, using Stack

-call ale#Set('haskell_stack_ghc_options', '-fno-code -v0')
-
-function! ale_linters#haskell#stack_ghc#GetCommand(buffer) abort
-    return ale#path#BufferCdString(a:buffer)
-    \ . ale#handlers#haskell#GetStackExecutable(a:buffer)
-    \ . ' ghc -- '
-    \ . ale#Var(a:buffer, 'haskell_stack_ghc_options')
-    \ . ' %t'
-endfunction
-
 call ale#linter#Define('haskell', {
 \   'name': 'stack_ghc',
 \   'aliases': ['stack-ghc'],
 \   'output_stream': 'stderr',
-\   'executable': function('ale#handlers#haskell#GetStackExecutable'),
-\   'command': function('ale_linters#haskell#stack_ghc#GetCommand'),
+\   'executable_callback': 'ale#handlers#haskell#GetStackExecutable',
+\   'command': 'stack ghc -- -fno-code -v0 %t',
 \   'callback': 'ale#handlers#haskell#HandleGHCFormat',
 \})
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
w0rp	0c6370f41a	Fix #2276 - Replace a potentially infinite loop for hie	2019-02-07 16:26:04 +00:00
w0rp	0ed3fbc596	Fix #2263 - detailed Flow errors should show the original message	2019-02-01 13:04:18 +00:00
w0rp	b315667ebe	Fix #2192 - Handle more ignore-pattern messages for ESLint	2019-01-27 12:10:03 +00:00
w0rp	0495a8be20	Merge pull request #2153 from deltaskelta/gqlint-fix changed gqlint to lint the file on disk	2018-12-18 10:20:44 +00:00
w0rp	6ef54842de	Merge pull request #2136 from hsanson/368-chktex-latex-report-errors-from-wrong-file Fix 368 - Lacheck reports errors from input{} files.	2018-12-16 13:18:51 +00:00
w0rp	df76d8a51c	Revert "Merge pull request #2083 from zackhsi/scalac-until-jvm" This reverts commit `1c89495d77`, reversing changes made to `4b4b09593b`.	2018-12-03 20:42:06 +00:00