Merge branch 'master' into fix-swipl

* master: (133 commits)
  Add rnix-lsp for Nix diagnostics and completion
  add spectral support for json
  add spectral handler
  add spectral linter for yaml
  doc: Fix linter issues
  doc: Add documentation for Deno
  feat: Add Deno lsp support
  feat: Add Deno fmt fixer
  Add document for apkbuild filetype
  Add tests for atools handler, basic and dealing with Error and Warning
  Test default linters for apkbuild
  Document new default linters for apkbuild
  Make apkbuild_lint and secfixes_check default for apkbuild filetype
  document support for apkbuild-lint and secfixes-check for apkbuild
  Add linters for apkbuild-lint and secfixes-check from atools
  Add handler for the output of atools
  Fix typos
  Add command callback tests
  Add support for standalone files
  Fix linting errors
  ...

135 files changed, 2692 insertions, 273 deletions

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
new file mode 100644
index 00000000..7c182758
--- /dev/null
+++ b/.github/workflows/main.yml
@@ -0,0 +1,23 @@
+name: CI
+on:
+  push:
+    branches: [ master ]
+    tags:
+      - /^v\d+\.\d+\.(x|\d+)$/
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  test_ale:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        vim-version:
+          - '--vim-80-only'
+          - '--vim-81-only'
+          - '--neovim-only'
+          - '--linters-only'
+    steps:
+      - uses: actions/checkout@v2
+      - name: Run tests
+        run: ./run-tests -v ${{ matrix.vim-version }}
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 00baff1c..00000000
--- a/.travis.yml
+++ /dev/null
@@ -1,16 +0,0 @@
----
-sudo: required
-services:
-    - docker
-language: generic
-branches:
-  only:
-    - master
-    - /^v\d+\.\d+\.(x|\d+)$/
-env:
-    - OPTIONS=--vim-80-only
-    - OPTIONS=--vim-81-only
-    - OPTIONS=--neovim-only
-    - OPTIONS=--linters-only
-script: |
-    ./run-tests -v $OPTIONS
diff --git a/Dockerfile b/Dockerfile
index a21299e6..397277d9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,6 +10,8 @@ ENV PACKAGES="\
     git \
     python \
     py-pip \
+    grep \
+    sed \
 "
 RUN apk --update add $PACKAGES && \
     rm -rf /var/cache/apk/* /tmp/* /var/tmp/*
diff --git a/ale_linters/ada/adals.vim b/ale_linters/ada/adals.vim
new file mode 100644
index 00000000..9a41e1df
--- /dev/null
+++ b/ale_linters/ada/adals.vim
@@ -0,0 +1,26 @@
+" Author: Bartek Jasicki http://github.com/thindil
+" Description: Support for Ada Language Server
+
+call ale#Set('ada_adals_executable', 'ada_language_server')
+call ale#Set('ada_adals_project', 'default.gpr')
+call ale#Set('ada_adals_encoding', 'utf-8')
+
+function! ale_linters#ada#adals#GetAdaLSConfig(buffer) abort
+    return {
+    \   'ada.projectFile': ale#Var(a:buffer, 'ada_adals_project'),
+    \   'ada.defaultCharset': ale#Var(a:buffer, 'ada_adals_encoding')
+    \}
+endfunction
+
+function! ale_linters#ada#adals#GetRootDirectory(buffer) abort
+    return fnamemodify(bufname(a:buffer), ':p:h')
+endfunction
+
+call ale#linter#Define('ada', {
+\   'name': 'adals',
+\   'lsp': 'stdio',
+\   'executable': {b -> ale#Var(b, 'ada_adals_executable')},
+\   'command': '%e',
+\   'project_root': function('ale_linters#ada#adals#GetRootDirectory'),
+\   'lsp_config': function('ale_linters#ada#adals#GetAdaLSConfig')
+\})
diff --git a/ale_linters/apkbuild/apkbuild_lint.vim b/ale_linters/apkbuild/apkbuild_lint.vim
new file mode 100644
index 00000000..285f5534
--- /dev/null
+++ b/ale_linters/apkbuild/apkbuild_lint.vim
@@ -0,0 +1,12 @@
+" Author: Leo <thinkabit.ukim@gmail.com>
+" Description: apkbuild-lint from atools linter for APKBUILDs
+
+call ale#Set('apkbuild_apkbuild_lint_executable', 'apkbuild-lint')
+
+call ale#linter#Define('apkbuild', {
+\   'name': 'apkbuild_lint',
+\   'output_stream': 'stdout',
+\   'executable': {b -> ale#Var(b, 'apkbuild_apkbuild_lint_executable')},
+\   'command': '%e %t',
+\   'callback': 'ale#handlers#atools#Handle',
+\})
diff --git a/ale_linters/apkbuild/secfixes_check.vim b/ale_linters/apkbuild/secfixes_check.vim
new file mode 100644
index 00000000..c65267fd
--- /dev/null
+++ b/ale_linters/apkbuild/secfixes_check.vim
@@ -0,0 +1,12 @@
+" Author: Leo <thinkabit.ukim@gmail.com>
+" Description: secfixes-check from atools linter for APKBUILDs
+
+call ale#Set('apkbuild_secfixes_check_executable', 'secfixes-check')
+
+call ale#linter#Define('apkbuild', {
+\   'name': 'secfixes_check',
+\   'output_stream': 'stdout',
+\   'executable': {b -> ale#Var(b, 'apkbuild_secfixes_check_executable')},
+\   'command': '%e %t',
+\   'callback': 'ale#handlers#atools#Handle',
+\})
diff --git a/ale_linters/cpp/clangtidy.vim b/ale_linters/cpp/clangtidy.vim
index 5e062d86..d6944aae 100644
--- a/ale_linters/cpp/clangtidy.vim
+++ b/ale_linters/cpp/clangtidy.vim
@@ -23,11 +23,13 @@ function! ale_linters#cpp#clangtidy#GetCommand(buffer, output) abort
         let l:options = ale#Var(a:buffer, 'cpp_clangtidy_options')
         let l:cflags = ale#c#GetCFlags(a:buffer, a:output)
         let l:options .= !empty(l:options) ? ale#Pad(l:cflags) : l:cflags
-    endif
 
-    " Tell clang-tidy a .h header with a C++ filetype in Vim is a C++ file.
-    if expand('#' . a:buffer) =~# '\.h$'
-        let l:options .= !empty(l:options) ? ' -x c++' : '-x c++'
+        " Tell clang-tidy a .h header with a C++ filetype in Vim is a C++ file
+        " only when compile-commands.json file is not there. Adding these
+        " flags makes clang-tidy completely ignore compile commmands.
+        if expand('#' . a:buffer) =~# '\.h$'
+            let l:options .= !empty(l:options) ? ' -x c++' : '-x c++'
+        endif
     endif
 
     " Get the options to pass directly to clang-tidy
diff --git a/ale_linters/dafny/dafny.vim b/ale_linters/dafny/dafny.vim
index b5b90675..de7a7bb8 100644
--- a/ale_linters/dafny/dafny.vim
+++ b/ale_linters/dafny/dafny.vim
@@ -6,7 +6,7 @@ function! ale_linters#dafny#dafny#Handle(buffer, lines) abort
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
         call add(l:output, {
-        \    'bufnr': a:buffer,
+        \    'filename': l:match[1],
         \    'col': l:match[3] + 0,
         \    'lnum': l:match[2] + 0,
         \    'text': l:match[5],
@@ -14,13 +14,28 @@ function! ale_linters#dafny#dafny#Handle(buffer, lines) abort
         \ })
     endfor
 
+    for l:match in ale#util#GetMatches(a:lines, '\v(.*)\((\d+),(\d+)\): (Verification of .{-} timed out after \d+ seconds)')
+        call add(l:output, {
+        \     'bufnr': a:buffer,
+        \     'col': l:match[3] + 0,
+        \     'lnum': l:match[2] + 0,
+        \     'text': l:match[4],
+        \     'type': 'E',
+        \ })
+    endfor
+
     return l:output
 endfunction
 
+function! ale_linters#dafny#dafny#GetCommand(buffer) abort
+    return printf('dafny %%s /compile:0 /timeLimit:%d', ale#Var(a:buffer, 'dafny_dafny_timelimit'))
+endfunction
+
+call ale#Set('dafny_dafny_timelimit', 10)
 call ale#linter#Define('dafny', {
 \    'name': 'dafny',
 \    'executable': 'dafny',
-\    'command': 'dafny %s /compile:0',
+\    'command': function('ale_linters#dafny#dafny#GetCommand'),
 \    'callback': 'ale_linters#dafny#dafny#Handle',
 \    'lint_file': 1,
 \ })
diff --git a/ale_linters/dart/analysis_server.vim b/ale_linters/dart/analysis_server.vim
new file mode 100644
index 00000000..a6870da9
--- /dev/null
+++ b/ale_linters/dart/analysis_server.vim
@@ -0,0 +1,29 @@
+" Author: Nelson Yeung <nelsyeung@gmail.com>
+" Description: Check Dart files with dart analysis server LSP
+
+call ale#Set('dart_analysis_server_executable', 'dart')
+
+function! ale_linters#dart#analysis_server#GetProjectRoot(buffer) abort
+    " Note: pub only looks for pubspec.yaml, there's no point in adding
+    " support for pubspec.yml
+    let l:pubspec = ale#path#FindNearestFile(a:buffer, 'pubspec.yaml')
+
+    return !empty(l:pubspec) ? fnamemodify(l:pubspec, ':h:h') : '.'
+endfunction
+
+function! ale_linters#dart#analysis_server#GetCommand(buffer) abort
+    let l:executable = ale#Var(a:buffer, 'dart_analysis_server_executable')
+    let l:dart = resolve(exepath(l:executable))
+
+    return '%e '
+    \   . fnamemodify(l:dart, ':h') . '/snapshots/analysis_server.dart.snapshot'
+    \   . ' --lsp'
+endfunction
+
+call ale#linter#Define('dart', {
+\   'name': 'analysis_server',
+\   'lsp': 'stdio',
+\   'executable': {b -> ale#Var(b, 'dart_analysis_server_executable')},
+\   'command': function('ale_linters#dart#analysis_server#GetCommand'),
+\   'project_root': function('ale_linters#dart#analysis_server#GetProjectRoot'),
+\})
diff --git a/ale_linters/elixir/credo.vim b/ale_linters/elixir/credo.vim
index 7c298502..892d47b9 100644
--- a/ale_linters/elixir/credo.vim
+++ b/ale_linters/elixir/credo.vim
@@ -45,6 +45,16 @@ function! ale_linters#elixir#credo#GetMode() abort
     endif
 endfunction
 
+function! ale_linters#elixir#credo#GetConfigFile() abort
+    let l:config_file = get(g:, 'ale_elixir_credo_config_file', '')
+
+    if empty(l:config_file)
+        return ''
+    endif
+
+    return ' --config-file ' . l:config_file
+endfunction
+
 function! ale_linters#elixir#credo#GetCommand(buffer) abort
     let l:project_root = ale#handlers#elixir#FindMixUmbrellaRoot(a:buffer)
     let l:mode = ale_linters#elixir#credo#GetMode()
@@ -52,6 +62,7 @@ function! ale_linters#elixir#credo#GetCommand(buffer) abort
     return ale#path#CdString(l:project_root)
     \ . 'mix help credo && '
     \ . 'mix credo ' . ale_linters#elixir#credo#GetMode()
+    \ . ale_linters#elixir#credo#GetConfigFile()
     \ . ' --format=flycheck --read-from-stdin %s'
 endfunction
 
diff --git a/ale_linters/erlang/erlc.vim b/ale_linters/erlang/erlc.vim
index a83bacc3..e78dc341 100644
--- a/ale_linters/erlang/erlc.vim
+++ b/ale_linters/erlang/erlc.vim
@@ -1,14 +1,22 @@
 " Author: Magnus Ottenklinger - https://github.com/evnu
 
+let g:ale_erlang_erlc_executable = get(g:, 'ale_erlang_erlc_executable', 'erlc')
 let g:ale_erlang_erlc_options = get(g:, 'ale_erlang_erlc_options', '')
 
+function! ale_linters#erlang#erlc#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'erlang_erlc_executable')
+endfunction
+
 function! ale_linters#erlang#erlc#GetCommand(buffer) abort
     let l:output_file = ale#util#Tempname()
     call ale#command#ManageFile(a:buffer, l:output_file)
 
-    return 'erlc -o ' . ale#Escape(l:output_file)
-    \   . ' ' . ale#Var(a:buffer, 'erlang_erlc_options')
-    \   . ' %t'
+    let l:command = ale#Escape(ale_linters#erlang#erlc#GetExecutable(a:buffer))
+    \             . ' -o ' . ale#Escape(l:output_file)
+    \             . ' ' . ale#Var(a:buffer, 'erlang_erlc_options')
+    \             . ' %t'
+
+    return l:command
 endfunction
 
 function! ale_linters#erlang#erlc#Handle(buffer, lines) abort
@@ -90,7 +98,7 @@ endfunction
 
 call ale#linter#Define('erlang', {
 \   'name': 'erlc',
-\   'executable': 'erlc',
+\   'executable': function('ale_linters#erlang#erlc#GetExecutable'),
 \   'command': function('ale_linters#erlang#erlc#GetCommand'),
 \   'callback': 'ale_linters#erlang#erlc#Handle',
 \})
diff --git a/ale_linters/inko/inko.vim b/ale_linters/inko/inko.vim
new file mode 100644
index 00000000..11558897
--- /dev/null
+++ b/ale_linters/inko/inko.vim
@@ -0,0 +1,33 @@
+" Author: Yorick Peterse <yorick@yorickpeterse.com>
+" Description: linting of Inko source code using the Inko compiler
+
+call ale#Set('inko_inko_executable', 'inko')
+
+function! ale_linters#inko#inko#GetCommand(buffer) abort
+    let l:include = ''
+
+    " Include the tests source directory, but only for test files.
+    if expand('#' . a:buffer . ':p') =~? '\vtests[/\\]test[/\\]'
+        let l:test_dir = ale#path#FindNearestDirectory(a:buffer, 'tests')
+
+        if isdirectory(l:test_dir)
+            let l:include = '--include ' . ale#Escape(l:test_dir)
+        endif
+    endif
+
+    " We use %s instead of %t so the compiler determines the correct module
+    " names for the file being edited. Not doing so may lead to errors in
+    " certain cases.
+    return '%e build --check --format=json'
+    \ . ale#Pad(l:include)
+    \ . ' %s'
+endfunction
+
+call ale#linter#Define('inko', {
+\   'name': 'inko',
+\   'executable': {b -> ale#Var(b, 'inko_inko_executable')},
+\   'command': function('ale_linters#inko#inko#GetCommand'),
+\   'callback': 'ale#handlers#inko#Handle',
+\   'output_stream': 'stderr',
+\   'lint_file': 1
+\})
diff --git a/ale_linters/java/checkstyle.vim b/ale_linters/java/checkstyle.vim
index ec7339d1..f00734e0 100644
--- a/ale_linters/java/checkstyle.vim
+++ b/ale_linters/java/checkstyle.vim
@@ -9,7 +9,7 @@ function! ale_linters#java#checkstyle#Handle(buffer, lines) abort
     let l:output = []
 
     " modern checkstyle versions
-    let l:pattern = '\v\[(WARN|ERROR)\] [a-zA-Z]?:?[^:]+:(\d+):(\d+)?:? (.*) \[(.+)\]$'
+    let l:pattern = '\v\[(WARN|ERROR)\] [a-zA-Z]?:?[^:]+:(\d+):(\d+)?:? (.*) \[(.+)\]'
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
         call add(l:output, {
diff --git a/ale_linters/javascript/xo.vim b/ale_linters/javascript/xo.vim
index e24f4a82..5e04ad5c 100644
--- a/ale_linters/javascript/xo.vim
+++ b/ale_linters/javascript/xo.vim
@@ -1,26 +1,9 @@
 " Author: Daniel Lupu <lupu.daniel.f@gmail.com>
 " Description: xo for JavaScript files
 
-call ale#Set('javascript_xo_executable', 'xo')
-call ale#Set('javascript_xo_use_global', get(g:, 'ale_use_global_executables', 0))
-call ale#Set('javascript_xo_options', '')
-
-function! ale_linters#javascript#xo#GetExecutable(buffer) abort
-    return ale#node#FindExecutable(a:buffer, 'javascript_xo', [
-    \   'node_modules/.bin/xo',
-    \])
-endfunction
-
-function! ale_linters#javascript#xo#GetCommand(buffer) abort
-    return ale#Escape(ale_linters#javascript#xo#GetExecutable(a:buffer))
-    \   . ' ' . ale#Var(a:buffer, 'javascript_xo_options')
-    \   . ' --reporter json --stdin --stdin-filename %s'
-endfunction
-
-" xo uses eslint and the output format is the same
 call ale#linter#Define('javascript', {
 \   'name': 'xo',
-\   'executable': function('ale_linters#javascript#xo#GetExecutable'),
-\   'command': function('ale_linters#javascript#xo#GetCommand'),
-\   'callback': 'ale#handlers#eslint#HandleJSON',
+\   'executable': function('ale#handlers#xo#GetExecutable'),
+\   'command': function('ale#handlers#xo#GetLintCommand'),
+\   'callback': 'ale#handlers#xo#HandleJSON',
 \})
diff --git a/ale_linters/json/spectral.vim b/ale_linters/json/spectral.vim
new file mode 100644
index 00000000..c7d56234
--- /dev/null
+++ b/ale_linters/json/spectral.vim
@@ -0,0 +1,14 @@
+" Author: t2h5 <https://github.com/t2h5>
+" Description: Integration of Stoplight Spectral CLI with ALE.
+
+call ale#Set('json_spectral_executable', 'spectral')
+call ale#Set('json_spectral_use_global', get(g:, 'ale_use_global_executables', 0))
+
+call ale#linter#Define('json', {
+\   'name': 'spectral',
+\   'executable': {b -> ale#node#FindExecutable(b, 'json_spectral', [
+\       'node_modules/.bin/spectral',
+\   ])},
+\   'command': '%e lint --ignore-unknown-format -q -f text %t',
+\   'callback': 'ale#handlers#spectral#HandleSpectralOutput'
+\})
diff --git a/ale_linters/julia/languageserver.vim b/ale_linters/julia/languageserver.vim
index 564bec39..999ad815 100644
--- a/ale_linters/julia/languageserver.vim
+++ b/ale_linters/julia/languageserver.vim
@@ -6,9 +6,9 @@ call ale#Set('julia_executable', 'julia')
 
 function! ale_linters#julia#languageserver#GetCommand(buffer) abort
     let l:julia_executable = ale#Var(a:buffer, 'julia_executable')
-    let l:cmd_string = 'using LanguageServer; server = LanguageServer.LanguageServerInstance(isdefined(Base, :stdin) ? stdin : STDIN, isdefined(Base, :stdout) ? stdout : STDOUT, false); server.runlinter = true; run(server);'
+    let l:cmd_string = 'using LanguageServer; using Pkg; import StaticLint; import SymbolServer; server = LanguageServer.LanguageServerInstance(isdefined(Base, :stdin) ? stdin : STDIN, isdefined(Base, :stdout) ? stdout : STDOUT, dirname(Pkg.Types.Context().env.project_file)); server.runlinter = true; run(server);'
 
-    return ale#Escape(l:julia_executable) . ' --startup-file=no --history-file=no -e ' . ale#Escape(l:cmd_string)
+    return ale#Escape(l:julia_executable) . ' --project=@. --startup-file=no --history-file=no -e ' . ale#Escape(l:cmd_string)
 endfunction
 
 call ale#linter#Define('julia', {
diff --git a/ale_linters/nix/rnix_lsp.vim b/ale_linters/nix/rnix_lsp.vim
new file mode 100644
index 00000000..949bed1c
--- /dev/null
+++ b/ale_linters/nix/rnix_lsp.vim
@@ -0,0 +1,16 @@
+" Author: jD91mZM2 <me@krake.one>
+" Description: rnix-lsp language client
+
+function! ale_linters#nix#rnix_lsp#GetProjectRoot(buffer) abort
+    " rnix-lsp does not yet use the project root, so getting it right is not
+    " important
+    return fnamemodify(a:buffer, ':h')
+endfunction
+
+call ale#linter#Define('nix', {
+\   'name': 'rnix_lsp',
+\   'lsp': 'stdio',
+\   'executable': 'rnix-lsp',
+\   'command': '%e',
+\   'project_root': function('ale_linters#nix#rnix_lsp#GetProjectRoot'),
+\})
diff --git a/ale_linters/openapi/ibm_validator.vim b/ale_linters/openapi/ibm_validator.vim
new file mode 100644
index 00000000..446931a2
--- /dev/null
+++ b/ale_linters/openapi/ibm_validator.vim
@@ -0,0 +1,58 @@
+" Author: Horacio Sanson <hsanson@gmail.com>
+
+call ale#Set('openapi_ibm_validator_executable', 'lint-openapi')
+call ale#Set('openapi_ibm_validator_options', '')
+
+function! ale_linters#openapi#ibm_validator#GetCommand(buffer) abort
+    return '%e' . ale#Pad(ale#Var(a:buffer, 'openapi_ibm_validator_options'))
+    \ . ' %t'
+endfunction
+
+function! ale_linters#openapi#ibm_validator#Handle(buffer, lines) abort
+    let l:output = []
+    let l:type = 'E'
+    let l:message = ''
+    let l:nr = -1
+
+    for l:line in a:lines
+        let l:match = matchlist(l:line, '^errors$')
+
+        if !empty(l:match)
+            let l:type = 'E'
+        endif
+
+        let l:match = matchlist(l:line, '^warnings$')
+
+        if !empty(l:match)
+            let l:type = 'W'
+        endif
+
+        let l:match = matchlist(l:line, '^ *Message : *\(.\+\)$')
+
+        if !empty(l:match)
+            let l:message = l:match[1]
+        endif
+
+        let l:match = matchlist(l:line, '^ *Line *: *\(\d\+\)$')
+
+        if !empty(l:match)
+            let l:nr = l:match[1]
+
+            call add(l:output, {
+            \   'lnum': l:nr + 0,
+            \   'col': 0,
+            \   'text': l:message,
+            \   'type': l:type,
+            \})
+        endif
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('openapi', {
+\   'name': 'ibm_validator',
+\   'executable': {b -> ale#Var(b, 'openapi_ibm_validator_executable')},
+\   'command': function('ale_linters#openapi#ibm_validator#GetCommand'),
+\   'callback': 'ale_linters#openapi#ibm_validator#Handle',
+\})
diff --git a/ale_linters/openapi/yamllint.vim b/ale_linters/openapi/yamllint.vim
new file mode 100644
index 00000000..2b8952cc
--- /dev/null
+++ b/ale_linters/openapi/yamllint.vim
@@ -0,0 +1,9 @@
+call ale#Set('yaml_yamllint_executable', 'yamllint')
+call ale#Set('yaml_yamllint_options', '')
+
+call ale#linter#Define('openapi', {
+\   'name': 'yamllint',
+\   'executable': {b -> ale#Var(b, 'yaml_yamllint_executable')},
+\   'command': function('ale#handlers#yamllint#GetCommand'),
+\   'callback': 'ale#handlers#yamllint#Handle',
+\})
diff --git a/ale_linters/php/intelephense.vim b/ale_linters/php/intelephense.vim
index e9e07d1f..aca619e3 100644..100755
--- a/ale_linters/php/intelephense.vim
+++ b/ale_linters/php/intelephense.vim
@@ -18,8 +18,8 @@ function! ale_linters#php#intelephense#GetProjectRoot(buffer) abort
     return !empty(l:git_path) ? fnamemodify(l:git_path, ':h:h') : ''
 endfunction
 
-function! ale_linters#php#intelephense#GetInitializationOptions() abort
-    return ale#Get('php_intelephense_config')
+function! ale_linters#php#intelephense#GetInitializationOptions(buffer) abort
+    return ale#Var(a:buffer, 'php_intelephense_config')
 endfunction
 
 call ale#linter#Define('php', {
diff --git a/ale_linters/ruby/sorbet.vim b/ale_linters/ruby/sorbet.vim
index cae0683c..c67e20cc 100644
--- a/ale_linters/ruby/sorbet.vim
+++ b/ale_linters/ruby/sorbet.vim
@@ -1,14 +1,17 @@
 call ale#Set('ruby_sorbet_executable', 'srb')
 call ale#Set('ruby_sorbet_options', '')
+call ale#Set('ruby_sorbet_enable_watchman', 0)
 
 function! ale_linters#ruby#sorbet#GetCommand(buffer) abort
     let l:executable = ale#Var(a:buffer, 'ruby_sorbet_executable')
     let l:options = ale#Var(a:buffer, 'ruby_sorbet_options')
+    let l:enable_watchman = ale#Var(a:buffer, 'ruby_sorbet_enable_watchman')
 
     return ale#ruby#EscapeExecutable(l:executable, 'srb')
     \   . ' tc'
     \   . (!empty(l:options) ? ' ' . l:options : '')
-    \   . ' --lsp --disable-watchman'
+    \   . ' --lsp'
+    \   . (l:enable_watchman ? '' : ' --disable-watchman')
 endfunction
 
 call ale#linter#Define('ruby', {
diff --git a/ale_linters/rust/analyzer.vim b/ale_linters/rust/analyzer.vim
index 3666ec03..77d946f7 100644
--- a/ale_linters/rust/analyzer.vim
+++ b/ale_linters/rust/analyzer.vim
@@ -17,7 +17,7 @@ endfunction
 call ale#linter#Define('rust', {
 \   'name': 'analyzer',
 \   'lsp': 'stdio',
-\   'lsp_config': {b -> ale#Var(b, 'rust_analyzer_config')},
+\   'initialization_options': {b -> ale#Var(b, 'rust_analyzer_config')},
 \   'executable': {b -> ale#Var(b, 'rust_analyzer_executable')},
 \   'command': function('ale_linters#rust#analyzer#GetCommand'),
 \   'project_root': function('ale_linters#rust#analyzer#GetProjectRoot'),
diff --git a/ale_linters/salt/salt_lint.vim b/ale_linters/salt/salt_lint.vim
new file mode 100644
index 00000000..47f66d83
--- /dev/null
+++ b/ale_linters/salt/salt_lint.vim
@@ -0,0 +1,33 @@
+" Author: Benjamin BINIER <poulpatine@gmail.com>
+" Description: salt-lint, saltstack linter
+
+call ale#Set('salt_salt_lint_executable', 'salt-lint')
+call ale#Set('salt_salt_lint_options', '')
+
+function! ale_linters#salt#salt_lint#GetCommand(buffer) abort
+    return '%e' . ale#Pad(ale#Var(a:buffer, 'salt_salt_lint_options'))
+    \   . ' --json'
+endfunction
+
+function! ale_linters#salt#salt_lint#Handle(buffer, lines) abort
+    let l:output = []
+
+    for l:error in ale#util#FuzzyJSONDecode(a:lines, [])
+        call add(l:output, {
+        \   'lnum': l:error.linenumber + 0,
+        \   'code': l:error.id + 0,
+        \   'text': l:error.message,
+        \   'type': l:error.severity is# 'HIGH' ? 'E' : 'W',
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('salt', {
+\   'name': 'salt_lint',
+\   'aliases': ['salt-lint'],
+\   'executable': {b -> ale#Var(b, 'salt_salt_lint_executable')},
+\   'command': function('ale_linters#salt#salt_lint#GetCommand'),
+\   'callback': 'ale_linters#salt#salt_lint#Handle'
+\})
diff --git a/ale_linters/typescript/deno.vim b/ale_linters/typescript/deno.vim
new file mode 100644
index 00000000..051cb208
--- /dev/null
+++ b/ale_linters/typescript/deno.vim
@@ -0,0 +1,25 @@
+" Author: Mohammed Chelouti - https://github.com/motato1
+" Description: Deno lsp linter for TypeScript files.
+
+call ale#linter#Define('typescript', {
+\   'name': 'deno',
+\   'lsp': 'stdio',
+\   'executable': function('ale#handlers#deno#GetExecutable'),
+\   'command': '%e lsp',
+\   'project_root': function('ale#handlers#deno#GetProjectRoot'),
+\   'initialization_options': function('ale_linters#typescript#deno#GetInitializationOptions'),
+\})
+
+function! ale_linters#typescript#deno#GetInitializationOptions(buffer) abort
+    let l:options = {
+    \   'enable': v:true,
+    \   'lint': v:true,
+    \   'unstable': v:false,
+    \   }
+
+    if ale#Var(a:buffer, 'deno_unstable')
+        let l:options.unstable = v:true
+    endif
+
+    return l:options
+endfunction
diff --git a/ale_linters/typescript/xo.vim b/ale_linters/typescript/xo.vim
index 0a3a717b..6f4ee50c 100644
--- a/ale_linters/typescript/xo.vim
+++ b/ale_linters/typescript/xo.vim
@@ -1,23 +1,6 @@
-call ale#Set('typescript_xo_executable', 'xo')
-call ale#Set('typescript_xo_use_global', get(g:, 'ale_use_global_executables', 0))
-call ale#Set('typescript_xo_options', '')
-
-function! ale_linters#typescript#xo#GetExecutable(buffer) abort
-    return ale#node#FindExecutable(a:buffer, 'typescript_xo', [
-    \   'node_modules/.bin/xo',
-    \])
-endfunction
-
-function! ale_linters#typescript#xo#GetCommand(buffer) abort
-    return ale#Escape(ale_linters#typescript#xo#GetExecutable(a:buffer))
-    \   . ale#Pad(ale#Var(a:buffer, 'typescript_xo_options'))
-    \   . ' --reporter json --stdin --stdin-filename %s'
-endfunction
-
-" xo uses eslint and the output format is the same
 call ale#linter#Define('typescript', {
 \   'name': 'xo',
-\   'executable': function('ale_linters#typescript#xo#GetExecutable'),
-\   'command': function('ale_linters#typescript#xo#GetCommand'),
-\   'callback': 'ale#handlers#eslint#HandleJSON',
+\   'executable': function('ale#handlers#xo#GetExecutable'),
+\   'command': function('ale#handlers#xo#GetLintCommand'),
+\   'callback': 'ale#handlers#xo#HandleJSON',
 \})
diff --git a/ale_linters/vala/vala_lint.vim b/ale_linters/vala/vala_lint.vim
new file mode 100644
index 00000000..7f8a566a
--- /dev/null
+++ b/ale_linters/vala/vala_lint.vim
@@ -0,0 +1,66 @@
+" Author: Atsuya Takagi <asoftonight@gmail.com>
+" Description: A linter for Vala using Vala-Lint.
+
+call ale#Set('vala_vala_lint_config_filename', 'vala-lint.conf')
+call ale#Set('vala_vala_lint_executable', 'io.elementary.vala-lint')
+
+function! ale_linters#vala#vala_lint#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'vala_vala_lint_executable')
+endfunction
+
+function! ale_linters#vala#vala_lint#GetCommand(buffer) abort
+    let l:command = ale_linters#vala#vala_lint#GetExecutable(a:buffer)
+
+    let l:config_filename = ale#Var(a:buffer, 'vala_vala_lint_config_filename')
+    let l:config_path = ale#path#FindNearestFile(a:buffer, l:config_filename)
+
+    if !empty(l:config_path)
+        let l:command .= ' -c ' . l:config_path
+    endif
+
+    return l:command . ' %s'
+endfunction
+
+function! ale_linters#vala#vala_lint#Handle(buffer, lines) abort
+    let l:pattern = '^\s*\(\d\+\)\.\(\d\+\)\s\+\(error\|warn\)\s\+\(.\+\)\s\([A-Za-z0-9_\-]\+\)'
+    let l:output = []
+
+    for l:line in a:lines
+        " remove color escape sequences since vala-lint doesn't support
+        " output without colors
+        let l:cleaned_line = substitute(l:line, '\e\[[0-9;]\+[mK]', '', 'g')
+        let l:match = matchlist(l:cleaned_line, l:pattern)
+
+        if len(l:match) == 0
+            continue
+        endif
+
+        let l:refined_type = l:match[3] is# 'warn' ? 'W' : 'E'
+        let l:cleaned_text = substitute(l:match[4], '^\s*\(.\{-}\)\s*$', '\1', '')
+
+        let l:lnum = l:match[1] + 0
+        let l:column = l:match[2] + 0
+        let l:type = l:refined_type
+        let l:text = l:cleaned_text
+        let l:code = l:match[5]
+
+        call add(l:output, {
+        \   'lnum': l:lnum,
+        \   'col': l:column,
+        \   'text': l:text,
+        \   'type': l:type,
+        \   'code': l:code,
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('vala', {
+\   'name': 'vala_lint',
+\   'output_stream': 'stdout',
+\   'executable': function('ale_linters#vala#vala_lint#GetExecutable'),
+\   'command': function('ale_linters#vala#vala_lint#GetCommand'),
+\   'callback': 'ale_linters#vala#vala_lint#Handle',
+\   'lint_file': 1,
+\})
diff --git a/ale_linters/yaml/spectral.vim b/ale_linters/yaml/spectral.vim
new file mode 100644
index 00000000..bd4623a5
--- /dev/null
+++ b/ale_linters/yaml/spectral.vim
@@ -0,0 +1,14 @@
+" Author: t2h5 <https://github.com/t2h5>
+" Description: Integration of Stoplight Spectral CLI with ALE.
+
+call ale#Set('yaml_spectral_executable', 'spectral')
+call ale#Set('yaml_spectral_use_global', get(g:, 'ale_use_global_executables', 0))
+
+call ale#linter#Define('yaml', {
+\   'name': 'spectral',
+\   'executable': {b -> ale#node#FindExecutable(b, 'yaml_spectral', [
+\       'node_modules/.bin/spectral',
+\   ])},
+\   'command': '%e lint --ignore-unknown-format -q -f text %t',
+\   'callback': 'ale#handlers#spectral#HandleSpectralOutput'
+\})
diff --git a/ale_linters/yaml/yamllint.vim b/ale_linters/yaml/yamllint.vim
index bedb7bf1..39011df1 100644
--- a/ale_linters/yaml/yamllint.vim
+++ b/ale_linters/yaml/yamllint.vim
@@ -3,48 +3,9 @@
 call ale#Set('yaml_yamllint_executable', 'yamllint')
 call ale#Set('yaml_yamllint_options', '')
 
-function! ale_linters#yaml#yamllint#GetCommand(buffer) abort
-    return '%e' . ale#Pad(ale#Var(a:buffer, 'yaml_yamllint_options'))
-    \   . ' -f parsable %t'
-endfunction
-
-function! ale_linters#yaml#yamllint#Handle(buffer, lines) abort
-    " Matches patterns line the following:
-    " something.yaml:1:1: [warning] missing document start "---" (document-start)
-    " something.yml:2:1: [error] syntax error: expected the node content, but found '<stream end>'
-    let l:pattern = '\v^.*:(\d+):(\d+): \[(error|warning)\] (.+)$'
-    let l:output = []
-
-    for l:match in ale#util#GetMatches(a:lines, l:pattern)
-        let l:item = {
-        \   'lnum': l:match[1] + 0,
-        \   'col': l:match[2] + 0,
-        \   'text': l:match[4],
-        \   'type': l:match[3] is# 'error' ? 'E' : 'W',
-        \}
-
-        let l:code_match = matchlist(l:item.text, '\v^(.+) \(([^)]+)\)$')
-
-        if !empty(l:code_match)
-            if l:code_match[2] is# 'trailing-spaces'
-            \&& !ale#Var(a:buffer, 'warn_about_trailing_whitespace')
-                " Skip warnings for trailing whitespace if the option is off.
-                continue
-            endif
-
-            let l:item.text = l:code_match[1]
-            let l:item.code = l:code_match[2]
-        endif
-
-        call add(l:output, l:item)
-    endfor
-
-    return l:output
-endfunction
-
 call ale#linter#Define('yaml', {
 \   'name': 'yamllint',
 \   'executable': {b -> ale#Var(b, 'yaml_yamllint_executable')},
-\   'command': function('ale_linters#yaml#yamllint#GetCommand'),
-\   'callback': 'ale_linters#yaml#yamllint#Handle',
+\   'command': function('ale#handlers#yamllint#GetCommand'),
+\   'callback': 'ale#handlers#yamllint#Handle',
 \})
diff --git a/autoload/ale/c.vim b/autoload/ale/c.vim
index cff53125..c7b1e20a 100644
--- a/autoload/ale/c.vim
+++ b/autoload/ale/c.vim
@@ -152,6 +152,7 @@ function! ale#c#ParseCFlags(path_prefix, should_quote, raw_arguments) abort
         \ || stridx(l:option, '-idirafter') == 0
         \ || stridx(l:option, '-iframework') == 0
         \ || stridx(l:option, '-include') == 0
+        \ || stridx(l:option, '-imacros') == 0
             if stridx(l:option, '-I') == 0 && l:option isnot# '-I'
                 let l:arg = join(split(l:option, '\zs')[2:], '')
                 let l:option = '-I'
diff --git a/autoload/ale/codefix.vim b/autoload/ale/codefix.vim
index 69bf36fa..4a78063b 100644
--- a/autoload/ale/codefix.vim
+++ b/autoload/ale/codefix.vim
@@ -261,7 +261,10 @@ function! ale#codefix#HandleLSPResponse(conn_id, response) abort
 
         " Send the results to the menu callback, if set.
         if l:MenuCallback isnot v:null
-            call l:MenuCallback(map(copy(l:result), '[''lsp'', v:val]'))
+            call l:MenuCallback(
+            \   l:data,
+            \   map(copy(l:result), '[''lsp'', v:val]')
+            \)
 
             return
         endif
diff --git a/autoload/ale/cursor.vim b/autoload/ale/cursor.vim
index 9ca6fb15..e8478e93 100644
--- a/autoload/ale/cursor.vim
+++ b/autoload/ale/cursor.vim
@@ -9,7 +9,6 @@ let g:ale_echo_delay = get(g:, 'ale_echo_delay', 10)
 let g:ale_echo_msg_format = get(g:, 'ale_echo_msg_format', '%code: %%s')
 
 let s:cursor_timer = -1
-let s:last_pos = [0, 0, 0]
 
 function! ale#cursor#TruncatedEcho(original_message) abort
     let l:message = a:original_message
@@ -118,14 +117,18 @@ function! ale#cursor#EchoCursorWarningWithDelay() abort
 
     let l:pos = getpos('.')[0:2]
 
+    if !exists('w:last_pos')
+        let w:last_pos = [0, 0, 0]
+    endif
+
     " Check the current buffer, line, and column number against the last
     " recorded position. If the position has actually changed, *then*
     " we should echo something. Otherwise we can end up doing processing
     " the echo message far too frequently.
-    if l:pos != s:last_pos
+    if l:pos != w:last_pos
         let l:delay = ale#Var(l:buffer, 'echo_delay')
 
-        let s:last_pos = l:pos
+        let w:last_pos = l:pos
         let s:cursor_timer = timer_start(
         \   l:delay,
         \   function('ale#cursor#EchoCursorWarning')
@@ -139,11 +142,16 @@ function! s:ShowCursorDetailForItem(loc, options) abort
     let s:last_detailed_line = line('.')
     let l:message = get(a:loc, 'detail', a:loc.text)
     let l:lines = split(l:message, "\n")
-    call ale#preview#Show(l:lines, {'stay_here': l:stay_here})
 
-    " Clear the echo message if we manually displayed details.
-    if !l:stay_here
-        execute 'echo'
+    if g:ale_floating_preview || g:ale_detail_to_floating_preview
+        call ale#floating_preview#Show(l:lines)
+    else
+        call ale#preview#Show(l:lines, {'stay_here': l:stay_here})
+
+        " Clear the echo message if we manually displayed details.
+        if !l:stay_here
+            execute 'echo'
+        endif
     endif
 endfunction
 
diff --git a/autoload/ale/dhall.vim b/autoload/ale/dhall.vim
new file mode 100644
index 00000000..cc54418f
--- /dev/null
+++ b/autoload/ale/dhall.vim
@@ -0,0 +1,24 @@
+" Author: Pat Brisbin <pbrisbin@gmail.com>, toastal <toastal@protonmail.com>
+" Description: Functions for working with Dhall’s executable
+
+call ale#Set('dhall_executable', 'dhall')
+call ale#Set('dhall_use_global', get(g:, 'ale_use_global_executables', 0))
+call ale#Set('dhall_options', '')
+
+function! ale#dhall#GetExecutable(buffer) abort
+    let l:executable = ale#Var(a:buffer, 'dhall_executable')
+
+    " Dhall is written in Haskell and commonly installed with Stack
+    return ale#handlers#haskell_stack#EscapeExecutable(l:executable, 'dhall')
+endfunction
+
+function! ale#dhall#GetExecutableWithOptions(buffer) abort
+    let l:executable = ale#dhall#GetExecutable(a:buffer)
+
+    return l:executable
+    \   . ale#Pad(ale#Var(a:buffer, 'dhall_options'))
+endfunction
+
+function! ale#dhall#GetCommand(buffer) abort
+    return '%e ' . ale#Pad(ale#Var(a:buffer, 'dhall_options'))
+endfunction
diff --git a/autoload/ale/fix/registry.vim b/autoload/ale/fix/registry.vim
index 0f146faa..a591a57b 100644
--- a/autoload/ale/fix/registry.vim
+++ b/autoload/ale/fix/registry.vim
@@ -32,11 +32,37 @@ let s:default_registry = {
 \       'suggested_filetypes': ['python'],
 \       'description': 'Fix PEP8 issues with black.',
 \   },
+\   'deno': {
+\       'function': 'ale#fixers#deno#Fix',
+\       'suggested_filetypes': ['typescript'],
+\       'description': 'Fix TypeScript using deno fmt.',
+\   },
 \   'dfmt': {
 \       'function': 'ale#fixers#dfmt#Fix',
 \       'suggested_filetypes': ['d'],
 \       'description': 'Fix D files with dfmt.',
 \   },
+\   'dhall': {
+\       'function': 'ale#fixers#dhall#Fix',
+\       'suggested_filetypes': ['dhall'],
+\       'description': 'Fix Dhall files with dhall-format.',
+\   },
+\   'dhall-format': {
+\       'function': 'ale#fixers#dhall_format#Fix',
+\       'suggested_filetypes': ['dhall'],
+\       'description': 'Standard code formatter for the Dhall language',
+\       'aliases': ['dhall'],
+\   },
+\   'dhall-freeze': {
+\       'function': 'ale#fixers#dhall_freeze#Freeze',
+\       'suggested_filetypes': ['dhall'],
+\       'description': 'Add integrity checks to remote import statements of an expression for the Dhall language',
+\   },
+\   'dhall-lint': {
+\       'function': 'ale#fixers#dhall_lint#Fix',
+\       'suggested_filetypes': ['dhall'],
+\       'description': 'Standard code formatter for the Dhall language and removing dead code',
+\   },
 \   'fecs': {
 \       'function': 'ale#fixers#fecs#Fix',
 \       'suggested_filetypes': ['javascript', 'css', 'html'],
@@ -81,7 +107,7 @@ let s:default_registry = {
 \   },
 \   'prettier': {
 \       'function': 'ale#fixers#prettier#Fix',
-\       'suggested_filetypes': ['javascript', 'typescript', 'css', 'less', 'scss', 'json', 'json5', 'graphql', 'markdown', 'vue', 'html', 'yaml'],
+\       'suggested_filetypes': ['javascript', 'typescript', 'css', 'less', 'scss', 'json', 'json5', 'graphql', 'markdown', 'vue', 'html', 'yaml', 'openapi'],
 \       'description': 'Apply prettier to a file.',
 \   },
 \   'prettier_eslint': {
@@ -132,7 +158,7 @@ let s:default_registry = {
 \   },
 \   'scalafmt': {
 \       'function': 'ale#fixers#scalafmt#Fix',
-\       'suggested_filetypes': ['scala'],
+\       'suggested_filetypes': ['sbt', 'scala'],
 \       'description': 'Fix Scala files using scalafmt',
 \   },
 \   'sorbet': {
@@ -342,7 +368,7 @@ let s:default_registry = {
 \   },
 \   'ktlint': {
 \       'function': 'ale#fixers#ktlint#Fix',
-\       'suggested_filetypes': ['kt'],
+\       'suggested_filetypes': ['kt', 'kotlin'],
 \       'description': 'Fix Kotlin files with ktlint.',
 \   },
 \   'styler': {
@@ -390,16 +416,11 @@ let s:default_registry = {
 \       'suggested_filetypes': ['lua'],
 \       'description': 'Fix Lua files with luafmt.',
 \   },
-\   'dhall': {
-\       'function': 'ale#fixers#dhall#Fix',
-\       'suggested_filetypes': ['dhall'],
-\       'description': 'Fix Dhall files with dhall-format.',
-\   },
 \   'ormolu': {
 \       'function': 'ale#fixers#ormolu#Fix',
 \       'suggested_filetypes': ['haskell'],
 \       'description': 'A formatter for Haskell source code.',
-\   },
+\   }
 \}
 
 " Reset the function registry to the default entries.
diff --git a/autoload/ale/fixers/deno.vim b/autoload/ale/fixers/deno.vim
new file mode 100644
index 00000000..7154c6ee
--- /dev/null
+++ b/autoload/ale/fixers/deno.vim
@@ -0,0 +1,17 @@
+function! ale#fixers#deno#Fix(buffer) abort
+    let l:executable = ale#handlers#deno#GetExecutable(a:buffer)
+
+    if !executable(l:executable)
+        return 0
+    endif
+
+    let l:options = ' fmt -'
+
+    if ale#Var(a:buffer, 'deno_unstable')
+        let l:options = l:options . ' --unstable'
+    endif
+
+    return {
+    \   'command': ale#Escape(l:executable) . l:options
+    \}
+endfunction
diff --git a/autoload/ale/fixers/dhall.vim b/autoload/ale/fixers/dhall.vim
deleted file mode 100644
index 18f6006c..00000000
--- a/autoload/ale/fixers/dhall.vim
+++ /dev/null
@@ -1,23 +0,0 @@
-" Author: Pat Brisbin <pbrisbin@gmail.com>
-" Description: Integration of dhall-format with ALE.
-
-call ale#Set('dhall_format_executable', 'dhall')
-
-function! ale#fixers#dhall#GetExecutable(buffer) abort
-    let l:executable = ale#Var(a:buffer, 'dhall_format_executable')
-
-    " Dhall is written in Haskell and commonly installed with Stack
-    return ale#handlers#haskell_stack#EscapeExecutable(l:executable, 'dhall')
-endfunction
-
-function! ale#fixers#dhall#Fix(buffer) abort
-    let l:executable = ale#fixers#dhall#GetExecutable(a:buffer)
-
-    return {
-    \   'command': l:executable
-    \       . ' format'
-    \       . ' --inplace'
-    \       . ' %t',
-    \   'read_temporary_file': 1,
-    \}
-endfunction
diff --git a/autoload/ale/fixers/dhall_format.vim b/autoload/ale/fixers/dhall_format.vim
new file mode 100644
index 00000000..d4021983
--- /dev/null
+++ b/autoload/ale/fixers/dhall_format.vim
@@ -0,0 +1,14 @@
+" Author: toastal <toastal@protonmail.com>
+" Description: Dhall’s built-in formatter
+"
+function! ale#fixers#dhall_format#Fix(buffer) abort
+    let l:executable = ale#dhall#GetExecutableWithOptions(a:buffer)
+    let l:command = l:executable
+    \   . ' format'
+    \   . ' --inplace %t'
+
+    return {
+    \   'command': l:command,
+    \   'read_temporary_file': 1,
+    \}
+endfunction
diff --git a/autoload/ale/fixers/dhall_freeze.vim b/autoload/ale/fixers/dhall_freeze.vim
new file mode 100644
index 00000000..74ae7530
--- /dev/null
+++ b/autoload/ale/fixers/dhall_freeze.vim
@@ -0,0 +1,18 @@
+" Author: toastal <toastal@protonmail.com>
+" Description: Dhall’s package freezing
+
+call ale#Set('dhall_freeze_options', '')
+
+function! ale#fixers#dhall_freeze#Freeze(buffer) abort
+    let l:executable = ale#dhall#GetExecutableWithOptions(a:buffer)
+    let l:command = l:executable
+    \   . ' freeze'
+    \   . ale#Pad(ale#Var(a:buffer, 'dhall_freeze_options'))
+    \   . ' --inplace %t'
+
+
+    return {
+    \   'command': l:command,
+    \   'read_temporary_file': 1,
+    \}
+endfunction
diff --git a/autoload/ale/fixers/dhall_lint.vim b/autoload/ale/fixers/dhall_lint.vim
new file mode 100644
index 00000000..2abbe6f7
--- /dev/null
+++ b/autoload/ale/fixers/dhall_lint.vim
@@ -0,0 +1,14 @@
+" Author: toastal <toastal@protonmail.com>
+" Description: Dhall’s built-in linter/formatter
+
+function! ale#fixers#dhall_lint#Fix(buffer) abort
+    let l:executable = ale#dhall#GetExecutableWithOptions(a:buffer)
+    let l:command = l:executable
+    \   . ' lint'
+    \   . ' --inplace %t'
+
+    return {
+    \   'command': l:command,
+    \   'read_temporary_file': 1,
+    \}
+endfunction
diff --git a/autoload/ale/fixers/isort.vim b/autoload/ale/fixers/isort.vim
index 9070fb27..55bb550e 100644
--- a/autoload/ale/fixers/isort.vim
+++ b/autoload/ale/fixers/isort.vim
@@ -2,24 +2,35 @@
 " Description: Fixing Python imports with isort.
 
 call ale#Set('python_isort_executable', 'isort')
-call ale#Set('python_isort_options', '')
 call ale#Set('python_isort_use_global', get(g:, 'ale_use_global_executables', 0))
+call ale#Set('python_isort_options', '')
+call ale#Set('python_isort_auto_pipenv', 0)
+
+function! ale#fixers#isort#GetExecutable(buffer) abort
+    if (ale#Var(a:buffer, 'python_auto_pipenv') || ale#Var(a:buffer, 'python_isort_auto_pipenv'))
+    \ && ale#python#PipenvPresent(a:buffer)
+        return 'pipenv'
+    endif
+
+    return ale#python#FindExecutable(a:buffer, 'python_isort', ['isort'])
+endfunction
 
 function! ale#fixers#isort#Fix(buffer) abort
     let l:options = ale#Var(a:buffer, 'python_isort_options')
 
-    let l:executable = ale#python#FindExecutable(
-    \   a:buffer,
-    \   'python_isort',
-    \   ['isort'],
-    \)
+    let l:executable = ale#fixers#isort#GetExecutable(a:buffer)
+
+    let l:exec_args = l:executable =~? 'pipenv$'
+    \   ? ' run isort'
+    \   : ''
 
-    if !executable(l:executable)
+    if !executable(l:executable) && l:executable isnot# 'pipenv'
         return 0
     endif
 
     return {
     \   'command': ale#path#BufferCdString(a:buffer)
-    \   .   ale#Escape(l:executable) . (!empty(l:options) ? ' ' . l:options : '') . ' -',
+    \   . ale#Escape(l:executable) . l:exec_args
+    \   . (!empty(l:options) ? ' ' . l:options : '') . ' -',
     \}
 endfunction
diff --git a/autoload/ale/fixers/prettier.vim b/autoload/ale/fixers/prettier.vim
index e0f4972e..12c018af 100644
--- a/autoload/ale/fixers/prettier.vim
+++ b/autoload/ale/fixers/prettier.vim
@@ -83,6 +83,7 @@ function! ale#fixers#prettier#ApplyFixForVersion(buffer, version) abort
         \    'markdown': 'markdown',
         \    'vue': 'vue',
         \    'yaml': 'yaml',
+        \    'openapi': 'yaml',
         \    'html': 'html',
         \}
 
diff --git a/autoload/ale/fixers/standardrb.vim b/autoload/ale/fixers/standardrb.vim
index 54330a37..acb310c6 100644
--- a/autoload/ale/fixers/standardrb.vim
+++ b/autoload/ale/fixers/standardrb.vim
@@ -12,12 +12,12 @@ function! ale#fixers#standardrb#GetCommand(buffer) abort
     return ale#ruby#EscapeExecutable(l:executable, 'standardrb')
     \   . (!empty(l:config) ? ' --config ' . ale#Escape(l:config) : '')
     \   . (!empty(l:options) ? ' ' . l:options : '')
-    \   . ' --fix --force-exclusion %t'
+    \   . ' --fix --force-exclusion --stdin %s'
 endfunction
 
 function! ale#fixers#standardrb#Fix(buffer) abort
     return {
     \   'command': ale#fixers#standardrb#GetCommand(a:buffer),
-    \   'read_temporary_file': 1,
+    \   'process_with': 'ale#fixers#rubocop#PostProcess'
     \}
 endfunction
diff --git a/autoload/ale/fixers/xo.vim b/autoload/ale/fixers/xo.vim
index 882350be..dcf4c737 100644
--- a/autoload/ale/fixers/xo.vim
+++ b/autoload/ale/fixers/xo.vim
@@ -1,23 +1,36 @@
 " Author: Albert Marquez - https://github.com/a-marquez
 " Description: Fixing files with XO.
 
-call ale#Set('javascript_xo_executable', 'xo')
-call ale#Set('javascript_xo_use_global', get(g:, 'ale_use_global_executables', 0))
-call ale#Set('javascript_xo_options', '')
+function! ale#fixers#xo#Fix(buffer) abort
+    let l:executable = ale#handlers#xo#GetExecutable(a:buffer)
+    let l:options = ale#handlers#xo#GetOptions(a:buffer)
 
-function! ale#fixers#xo#GetExecutable(buffer) abort
-    return ale#node#FindExecutable(a:buffer, 'javascript_xo', [
-    \   'node_modules/xo/cli.js',
-    \   'node_modules/.bin/xo',
-    \])
+    return ale#semver#RunWithVersionCheck(
+    \   a:buffer,
+    \   l:executable,
+    \   '%e --version',
+    \   {b, v -> ale#fixers#xo#ApplyFixForVersion(b, v, l:executable, l:options)}
+    \)
 endfunction
 
-function! ale#fixers#xo#Fix(buffer) abort
-    let l:executable = ale#fixers#xo#GetExecutable(a:buffer)
+function! ale#fixers#xo#ApplyFixForVersion(buffer, version, executable, options) abort
+    let l:executable = ale#node#Executable(a:buffer, a:executable)
+    let l:options = ale#Pad(a:options)
+
+    " 0.30.0 is the first version with a working --stdin --fix
+    if ale#semver#GTE(a:version, [0, 30, 0])
+        return {
+        \   'command': l:executable
+        \       . ' --stdin --stdin-filename %s'
+        \       . ' --fix'
+        \       . l:options,
+        \}
+    endif
 
     return {
-    \   'command': ale#node#Executable(a:buffer, l:executable)
-    \       . ' --fix %t',
+    \   'command': l:executable
+    \       . ' --fix %t'
+    \       . l:options,
     \   'read_temporary_file': 1,
     \}
 endfunction
diff --git a/autoload/ale/floating_preview.vim b/autoload/ale/floating_preview.vim
new file mode 100644
index 00000000..e6a75689
--- /dev/null
+++ b/autoload/ale/floating_preview.vim
@@ -0,0 +1,91 @@
+" Author: Jan-Grimo Sobez <jan-grimo.sobez@phys.chem.ethz.ch>
+" Author: Kevin Clark <kevin.clark@gmail.com>
+" Description: Floating preview window for showing whatever information in.
+
+" Precondition: exists('*nvim_open_win')
+
+function! ale#floating_preview#Show(lines, ...) abort
+    if !exists('*nvim_open_win')
+        execute 'echom ''Floating windows not supported in this vim instance.'''
+
+        return
+    endif
+
+    " Remove the close autocmd so it doesn't happen mid update
+    augroup ale_floating_preview_window
+        autocmd!
+    augroup END
+
+    let l:options = get(a:000, 0, {})
+
+    " Only create a new window if we need it
+    if !exists('w:preview') || index(nvim_list_wins(), w:preview['id']) is# -1
+        call s:Create(l:options)
+    else
+        call nvim_buf_set_option(w:preview['buffer'], 'modifiable', v:true)
+    endif
+
+    " Execute commands in window context
+    let l:parent_window = nvim_get_current_win()
+
+    call nvim_set_current_win(w:preview['id'])
+
+    for l:command in get(l:options, 'commands', [])
+        call execute(l:command)
+    endfor
+
+    call nvim_set_current_win(l:parent_window)
+
+    " Return to parent context on move
+    augroup ale_floating_preview_window
+        autocmd!
+
+        if g:ale_close_preview_on_insert
+            autocmd CursorMoved,TabLeave,WinLeave,InsertEnter <buffer> ++once call s:Close()
+        else
+            autocmd CursorMoved,TabLeave,WinLeave <buffer> ++once call s:Close()
+        endif
+    augroup END
+
+    let l:width = max(map(copy(a:lines), 'strdisplaywidth(v:val)'))
+    let l:height = min([len(a:lines), 10])
+    call nvim_win_set_width(w:preview['id'], l:width)
+    call nvim_win_set_height(w:preview['id'], l:height)
+
+    call nvim_buf_set_lines(w:preview['buffer'], 0, -1, v:false, a:lines)
+    call nvim_buf_set_option(w:preview['buffer'], 'modified', v:false)
+    call nvim_buf_set_option(w:preview['buffer'], 'modifiable', v:false)
+endfunction
+
+function! s:Create(options) abort
+    let l:buffer = nvim_create_buf(v:false, v:false)
+    let l:winid = nvim_open_win(l:buffer, v:false, {
+    \ 'relative': 'cursor',
+    \ 'row': 1,
+    \ 'col': 0,
+    \ 'width': 42,
+    \ 'height': 4,
+    \ 'style': 'minimal'
+    \ })
+    call nvim_buf_set_option(l:buffer, 'buftype', 'acwrite')
+    call nvim_buf_set_option(l:buffer, 'bufhidden', 'delete')
+    call nvim_buf_set_option(l:buffer, 'swapfile', v:false)
+    call nvim_buf_set_option(l:buffer, 'filetype', get(a:options, 'filetype', 'ale-preview'))
+
+    let w:preview = {'id': l:winid, 'buffer': l:buffer}
+endfunction
+
+function! s:Close() abort
+    if !exists('w:preview')
+        return
+    endif
+
+    call setbufvar(w:preview['buffer'], '&modified', 0)
+
+    if win_id2win(w:preview['id']) > 0
+        execute win_id2win(w:preview['id']).'wincmd c'
+    endif
+
+    unlet w:preview
+endfunction
+
diff --git a/autoload/ale/handlers/atools.vim b/autoload/ale/handlers/atools.vim
new file mode 100644
index 00000000..c273fc40
--- /dev/null
+++ b/autoload/ale/handlers/atools.vim
@@ -0,0 +1,41 @@
+" Author: Leo <thinkabit.ukim@gmail.com>
+" Description: Handlers for output expected from atools
+
+function! ale#handlers#atools#Handle(buffer, lines) abort
+    " Format: SEVERITY:[TAG]:PATH:LINENUM:MSG
+    " Example: MC:[AL5]:./APKBUILD:12:variable set to empty string: install=
+    let l:pattern = '\([^:]\+\):\([^:]\+\):\([^:]\+\):\(\d\+\):\(.\+\)$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        " We are expected to receive 2 characters, the first character
+        " can be 'S', 'I', 'M' 'T', which are respectively:
+        " Serious (Error)
+        " Important (Error)
+        " Minor (Warning)
+        " Style (Warning)
+        "
+        " The second character can be either 'C' or 'P', which are respectively:
+        " Certain (Error)
+        " Possible (Warning)
+        let l:severity = matchstr(l:match[1], '^.')
+        let l:certainty = matchstr(l:match[1], '.$')
+
+        let l:type = 'E'
+        " If the tag returns 'Minor' or 'Style' or is 'Possible'
+        " then return a warning
+
+        if l:severity is# 'M' || l:severity is# 'T' || l:certainty is# 'P'
+            let l:type = 'W'
+        endif
+
+        call add(l:output, {
+        \    'lnum': l:match[4] + 0,
+        \    'text': l:match[5],
+        \    'type': l:type,
+        \    'code': matchstr(l:match[2], 'AL[0-9]*'),
+        \})
+    endfor
+
+    return l:output
+endfunction
diff --git a/autoload/ale/handlers/deno.vim b/autoload/ale/handlers/deno.vim
new file mode 100644
index 00000000..4bf4546a
--- /dev/null
+++ b/autoload/ale/handlers/deno.vim
@@ -0,0 +1,52 @@
+" Author: Mohammed Chelouti - https://github.com/motato1
+" Description: Handler functions for Deno.
+
+call ale#Set('deno_executable', 'deno')
+call ale#Set('deno_unstable', 0)
+call ale#Set('deno_lsp_project_root', '')
+
+function! ale#handlers#deno#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'deno_executable')
+endfunction
+
+" Find project root for Deno's language server.
+"
+" Deno projects do not require a project or configuration file at the project root.
+" This means the root directory has to be guessed,
+" unless it is explicitly specified by the user.
+"
+" The project root is determined by ...
+" 1. using a user-specified value from deno_lsp_project_root
+" 2. looking for common top-level files/dirs
+" 3. using the buffer's directory
+function! ale#handlers#deno#GetProjectRoot(buffer) abort
+    let l:project_root = ale#Var(a:buffer, 'deno_lsp_project_root')
+
+    if !empty(l:project_root)
+        return l:project_root
+    endif
+
+    let l:possible_project_roots = [
+    \   'tsconfig.json',
+    \   '.git',
+    \   bufname(a:buffer),
+    \]
+
+    for l:possible_root in l:possible_project_roots
+        let l:project_root = ale#path#FindNearestFile(a:buffer, l:possible_root)
+
+        if empty(l:project_root)
+            let l:project_root = ale#path#FindNearestDirectory(a:buffer, l:possible_root)
+        endif
+
+        if !empty(l:project_root)
+            " dir:p expands to /full/path/to/dir/ whereas
+            " file:p expands to /full/path/to/file (no trailing slash)
+            " Appending '/' ensures that :h:h removes the path's last segment
+            " regardless of whether it is a directory or not.
+            return fnamemodify(l:project_root . '/', ':p:h:h')
+        endif
+    endfor
+
+    return ''
+endfunction
diff --git a/autoload/ale/handlers/inko.vim b/autoload/ale/handlers/inko.vim
new file mode 100644
index 00000000..73f06871
--- /dev/null
+++ b/autoload/ale/handlers/inko.vim
@@ -0,0 +1,37 @@
+" Author: Yorick Peterse <yorick@yorickpeterse.com>
+" Description: output handlers for the Inko JSON format
+
+function! ale#handlers#inko#GetType(severity) abort
+    if a:severity is? 'warning'
+        return 'W'
+    endif
+
+    return 'E'
+endfunction
+
+function! ale#handlers#inko#Handle(buffer, lines) abort
+    try
+        let l:errors = json_decode(join(a:lines, ''))
+    catch
+        return []
+    endtry
+
+    if empty(l:errors)
+        return []
+    endif
+
+    let l:output = []
+    let l:dir = expand('#' . a:buffer . ':p:h')
+
+    for l:error in l:errors
+        call add(l:output, {
+        \   'filename': ale#path#GetAbsPath(l:dir, l:error['file']),
+        \   'lnum': l:error['line'],
+        \   'col': l:error['column'],
+        \   'text': l:error['message'],
+        \   'type': ale#handlers#inko#GetType(l:error['level']),
+        \})
+    endfor
+
+    return l:output
+endfunction
diff --git a/autoload/ale/handlers/spectral.vim b/autoload/ale/handlers/spectral.vim
new file mode 100644
index 00000000..1eb4a5de
--- /dev/null
+++ b/autoload/ale/handlers/spectral.vim
@@ -0,0 +1,31 @@
+" Author: t2h5 <https://github.com/t2h5>
+" Description: Integration of Stoplight Spectral CLI with ALE.
+
+function! ale#handlers#spectral#HandleSpectralOutput(buffer, lines) abort
+    " Matches patterns like the following:
+    " openapi.yml:1:1 error oas3-schema "Object should have required property `info`."
+    " openapi.yml:1:1 warning oas3-api-servers "OpenAPI `servers` must be present and non-empty array."
+    let l:pattern = '\v^.*:(\d+):(\d+) (error|warning) (.*)$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        let l:obj = {
+        \   'lnum': l:match[1] + 0,
+        \   'col': l:match[2] + 0,
+        \   'type': l:match[3] is# 'error' ? 'E' : 'W',
+        \   'text': l:match[4],
+        \}
+
+        let l:code_match = matchlist(l:obj.text, '\v^(.+) "(.+)"$')
+
+        if !empty(l:code_match)
+            let l:obj.code = l:code_match[1]
+            let l:obj.text = l:code_match[2]
+        endif
+
+        call add(l:output, l:obj)
+    endfor
+
+    return l:output
+endfunction
+
diff --git a/autoload/ale/handlers/xo.vim b/autoload/ale/handlers/xo.vim
new file mode 100644
index 00000000..c63278c0
--- /dev/null
+++ b/autoload/ale/handlers/xo.vim
@@ -0,0 +1,44 @@
+call ale#Set('javascript_xo_executable', 'xo')
+call ale#Set('javascript_xo_use_global', get(g:, 'ale_use_global_executables', 0))
+call ale#Set('javascript_xo_options', '')
+
+call ale#Set('typescript_xo_executable', 'xo')
+call ale#Set('typescript_xo_use_global', get(g:, 'ale_use_global_executables', 0))
+call ale#Set('typescript_xo_options', '')
+
+function! ale#handlers#xo#GetExecutable(buffer) abort
+    let l:type = ale#handlers#xo#GetType(a:buffer)
+
+    return ale#node#FindExecutable(a:buffer, l:type . '_xo', [
+    \   'node_modules/xo/cli.js',
+    \   'node_modules/.bin/xo',
+    \])
+endfunction
+
+function! ale#handlers#xo#GetLintCommand(buffer) abort
+    return ale#Escape(ale#handlers#xo#GetExecutable(a:buffer))
+    \   . ale#Pad(ale#handlers#xo#GetOptions(a:buffer))
+    \   . ' --reporter json --stdin --stdin-filename %s'
+endfunction
+
+function! ale#handlers#xo#GetOptions(buffer) abort
+    let l:type = ale#handlers#xo#GetType(a:buffer)
+
+    return ale#Var(a:buffer, l:type . '_xo_options')
+endfunction
+
+" xo uses eslint and the output format is the same
+function! ale#handlers#xo#HandleJSON(buffer, lines) abort
+    return ale#handlers#eslint#HandleJSON(a:buffer, a:lines)
+endfunction
+
+function! ale#handlers#xo#GetType(buffer) abort
+    let l:filetype = getbufvar(a:buffer, '&filetype')
+    let l:type = 'javascript'
+
+    if l:filetype =~# 'typescript'
+        let l:type = 'typescript'
+    endif
+
+    return l:type
+endfunction
diff --git a/autoload/ale/handlers/yamllint.vim b/autoload/ale/handlers/yamllint.vim
new file mode 100644
index 00000000..5e04577d
--- /dev/null
+++ b/autoload/ale/handlers/yamllint.vim
@@ -0,0 +1,39 @@
+function! ale#handlers#yamllint#GetCommand(buffer) abort
+    return '%e' . ale#Pad(ale#Var(a:buffer, 'yaml_yamllint_options'))
+    \   . ' -f parsable %t'
+endfunction
+
+function! ale#handlers#yamllint#Handle(buffer, lines) abort
+    " Matches patterns line the following:
+    " something.yaml:1:1: [warning] missing document start "---" (document-start)
+    " something.yml:2:1: [error] syntax error: expected the node content, but found '<stream end>'
+    let l:pattern = '\v^.*:(\d+):(\d+): \[(error|warning)\] (.+)$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        let l:item = {
+        \   'lnum': l:match[1] + 0,
+        \   'col': l:match[2] + 0,
+        \   'text': l:match[4],
+        \   'type': l:match[3] is# 'error' ? 'E' : 'W',
+        \}
+
+        let l:code_match = matchlist(l:item.text, '\v^(.+) \(([^)]+)\)$')
+
+        if !empty(l:code_match)
+            if l:code_match[2] is# 'trailing-spaces'
+            \&& !ale#Var(a:buffer, 'warn_about_trailing_whitespace')
+                " Skip warnings for trailing whitespace if the option is off.
+                continue
+            endif
+
+            let l:item.text = l:code_match[1]
+            let l:item.code = l:code_match[2]
+        endif
+
+        call add(l:output, l:item)
+    endfor
+
+    return l:output
+endfunction
+
diff --git a/autoload/ale/hover.vim b/autoload/ale/hover.vim
index 1d38f3b9..cb0379fd 100644
--- a/autoload/ale/hover.vim
+++ b/autoload/ale/hover.vim
@@ -46,6 +46,10 @@ function! ale#hover#HandleTSServerResponse(conn_id, response) abort
                 call balloon_show(a:response.body.displayString)
             elseif get(l:options, 'truncated_echo', 0)
                 call ale#cursor#TruncatedEcho(split(a:response.body.displayString, "\n")[0])
+            elseif g:ale_hover_to_floating_preview || g:ale_floating_preview
+                call ale#floating_preview#Show(split(a:response.body.displayString, "\n"), {
+                \   'filetype': 'ale-preview.message',
+                \})
             elseif g:ale_hover_to_preview
                 call ale#preview#Show(split(a:response.body.displayString, "\n"), {
                 \   'filetype': 'ale-preview.message',
@@ -226,6 +230,11 @@ function! ale#hover#HandleLSPResponse(conn_id, response) abort
                 call balloon_show(join(l:lines, "\n"))
             elseif get(l:options, 'truncated_echo', 0)
                 call ale#cursor#TruncatedEcho(l:lines[0])
+            elseif g:ale_hover_to_floating_preview || g:ale_floating_preview
+                call ale#floating_preview#Show(l:lines, {
+                \   'filetype': 'ale-preview.message',
+                \   'commands': l:commands,
+                \})
             elseif g:ale_hover_to_preview
                 call ale#preview#Show(l:lines, {
                 \   'filetype': 'ale-preview.message',
diff --git a/autoload/ale/linter.vim b/autoload/ale/linter.vim
index 645c25f9..f9ec48d7 100644
--- a/autoload/ale/linter.vim
+++ b/autoload/ale/linter.vim
@@ -38,11 +38,13 @@ let s:default_ale_linter_aliases = {
 "
 " NOTE: Update the g:ale_linters documentation when modifying this.
 let s:default_ale_linters = {
+\   'apkbuild': ['apkbuild_lint', 'secfixes_check'],
 \   'csh': ['shell'],
 \   'elixir': ['credo', 'dialyxir', 'dogma'],
 \   'go': ['gofmt', 'golint', 'go vet'],
 \   'hack': ['hack'],
 \   'help': [],
+\   'inko': ['inko'],
 \   'perl': ['perlcritic'],
 \   'perl6': [],
 \   'python': ['flake8', 'mypy', 'pylint', 'pyright'],
diff --git a/autoload/ale/lsp_linter.vim b/autoload/ale/lsp_linter.vim
index dcd76e8f..628dde78 100644
--- a/autoload/ale/lsp_linter.vim
+++ b/autoload/ale/lsp_linter.vim
@@ -85,12 +85,18 @@ function! s:HandleTSServerDiagnostics(response, error_type) abort
         endif
 
         let l:info.syntax_loclist = l:thislist
-    else
+    elseif a:error_type is# 'semantic'
         if len(l:thislist) is 0 && len(get(l:info, 'semantic_loclist', [])) is 0
             let l:no_changes = 1
         endif
 
         let l:info.semantic_loclist = l:thislist
+    else
+        if len(l:thislist) is 0 && len(get(l:info, 'suggestion_loclist', [])) is 0
+            let l:no_changes = 1
+        endif
+
+        let l:info.suggestion_loclist = l:thislist
     endif
 
     if l:no_changes
@@ -98,6 +104,7 @@ function! s:HandleTSServerDiagnostics(response, error_type) abort
     endif
 
     let l:loclist = get(l:info, 'semantic_loclist', [])
+    \   + get(l:info, 'suggestion_loclist', [])
     \   + get(l:info, 'syntax_loclist', [])
 
     call ale#engine#HandleLoclist(l:linter_name, l:buffer, l:loclist, 0)
@@ -150,6 +157,10 @@ function! ale#lsp_linter#HandleLSPResponse(conn_id, response) abort
     elseif get(a:response, 'type', '') is# 'event'
     \&& get(a:response, 'event', '') is# 'syntaxDiag'
         call s:HandleTSServerDiagnostics(a:response, 'syntax')
+    elseif get(a:response, 'type', '') is# 'event'
+    \&& get(a:response, 'event', '') is# 'suggestionDiag'
+    \&& get(g:, 'ale_lsp_suggestions', '1') == 1
+        call s:HandleTSServerDiagnostics(a:response, 'suggestion')
     endif
 endfunction
 
diff --git a/autoload/ale/maven.vim b/autoload/ale/maven.vim
index 745f8c93..42735286 100644
--- a/autoload/ale/maven.vim
+++ b/autoload/ale/maven.vim
@@ -25,7 +25,7 @@ function! ale#maven#FindExecutable(buffer) abort
     let l:wrapper_cmd = has('unix') ? 'mvnw' : 'mvnw.cmd'
     let l:wrapper_path = ale#path#FindNearestFile(a:buffer, l:wrapper_cmd)
 
-    if executable(l:wrapper_path)
+    if !empty(l:wrapper_path) && executable(l:wrapper_path)
         return l:wrapper_path
     endif
 
diff --git a/autoload/ale/python.vim b/autoload/ale/python.vim
index 7ed22367..fc6c1130 100644
--- a/autoload/ale/python.vim
+++ b/autoload/ale/python.vim
@@ -32,6 +32,8 @@ function! ale#python#FindProjectRootIni(buffer) abort
         \|| filereadable(l:path . '/.pylintrc')
         \|| filereadable(l:path . '/Pipfile')
         \|| filereadable(l:path . '/Pipfile.lock')
+        \|| filereadable(l:path . '/poetry.lock')
+        \|| filereadable(l:path . '/pyproject.toml')
             return l:path
         endif
     endfor
diff --git a/autoload/ale/util.vim b/autoload/ale/util.vim
index fcc03eb7..1f396377 100644
--- a/autoload/ale/util.vim
+++ b/autoload/ale/util.vim
@@ -486,7 +486,7 @@ function! ale#util#Input(message, value) abort
 endfunction
 
 function! ale#util#HasBuflineApi() abort
-    return exists('*deletebufline') && exists('*appendbufline') && exists('*getpos') && exists('*setpos')
+    return exists('*deletebufline') && exists('*setbufline')
 endfunction
 
 " Sets buffer contents to lines
@@ -507,11 +507,8 @@ function! ale#util#SetBufferContents(buffer, lines) abort
 
     " Use a Vim API for setting lines in other buffers, if available.
     if l:has_bufline_api
-        let l:save_cursor = getpos('.')
-        call deletebufline(a:buffer, 1, '$')
-        call appendbufline(a:buffer, 1, l:new_lines)
-        call deletebufline(a:buffer, 1, 1)
-        call setpos('.', l:save_cursor)
+        call setbufline(a:buffer, 1, l:new_lines)
+        call deletebufline(a:buffer, l:first_line_to_remove, '$')
     " Fall back on setting lines the old way, for the current buffer.
     else
         let l:old_line_length = line('$')
diff --git a/doc/ale-ada.txt b/doc/ale-ada.txt
index 2ac30c0a..0fc55a9c 100644
--- a/doc/ale-ada.txt
+++ b/doc/ale-ada.txt
@@ -33,4 +33,34 @@ g:ale_ada_gnatpp_options                             *g:ale_ada_gnatpp_options*
 
 
 ===============================================================================
+ada-language-server                                   *ale-ada-language-server*
+
+g:ale_ada_adals_executable                         *g:ale_ada_adals_executable*
+                                                   *b:ale_ada_adals_executable*
+  Type: |String|
+  Default: `'ada_language_server'`
+
+  This variable can be changed to use a different executable for Ada Language
+  Server.
+
+
+g:ale_ada_adals_project                               *g:ale_ada_adals_project*
+                                                      *b:ale_ada_adals_project*
+  Type: |String|
+  Default: `'default.gpr'`
+
+This variable can be changed to use a different GPR file for
+Ada Language Server.
+
+
+g:ale_ada_adals_encoding                             *g:ale_ada_adals_encoding*
+                                                     *b:ale_ada_adals_encoding*
+  Type: |String|
+  Default: `'utf-8'`
+
+This variable can be changed to use a different file encoding for
+Ada Language Server.
+
+
+===============================================================================
   vim:tw=78:ts=2:sts=2:sw=2:ft=help:norl:
diff --git a/doc/ale-apkbuild.txt b/doc/ale-apkbuild.txt
new file mode 100644
index 00000000..05261400
--- /dev/null
+++ b/doc/ale-apkbuild.txt
@@ -0,0 +1,30 @@
+===============================================================================
+ALE APKBUILD Integration                                 *ale-apkbuild-options*
+
+
+===============================================================================
+apkbuild-lint                                      *ale-apkbuild-apkbuild-lint*
+
+g:ale_apkbuild_apkbuild_lint_executable                  
+                                      *g:ale_apkbuild_apkbuild_lint_executable*
+                                      *b:ale_apkbuild_apkbuild_lint_executable*
+
+  Type: |String|
+  Default: `'apkbuild-lint'`
+
+  This variable can be set to change the path to apkbuild-lint
+
+===============================================================================
+secfixes-check                                    *ale-apkbuild-secfixes-check*
+
+g:ale_apkbuild_secfixes_check_executable
+                                     *g:ale_apkbuild_secfixes_check_executable*
+                                     *b:ale_apkbuild_secfixes_check_executable*
+
+  Type: |String|
+  Default: `'secfixes-check'`
+
+  This variable can be set to change the path to secfixes-check
+
+===============================================================================
+  vim:tw=78:ts=2:sts=2:sw=2:ft=help:norl:
diff --git a/doc/ale-dafny.txt b/doc/ale-dafny.txt
new file mode 100644
index 00000000..005170ad
--- /dev/null
+++ b/doc/ale-dafny.txt
@@ -0,0 +1,16 @@
+===============================================================================
+ALE Dafny Integration                                       *ale-dafny-options*
+
+
+===============================================================================
+dafny                                                         *ale-dafny-dafny*
+
+g:ale_dafny_dafny_timelimit                       *g:ale_dafny_dafny_timelimit*
+                                                  *b:ale_dafny_dafny_timelimit*
+  Type: |Number|
+  Default: `10`
+
+  This variable sets the `/timeLimit` used for dafny.
+
+
+  vim:tw=78:ts=2:sts=2:sw=2:ft=help:norl:
diff --git a/doc/ale-dart.txt b/doc/ale-dart.txt
index a6d88dd8..01089252 100644
--- a/doc/ale-dart.txt
+++ b/doc/ale-dart.txt
@@ -3,6 +3,31 @@ ALE Dart Integration                                         *ale-dart-options*
 
 
 ===============================================================================
+analysis_server                                      *ale-dart-analysis_server*
+
+Installation
+-------------------------------------------------------------------------------
+
+Install Dart via whatever means. `analysis_server` will be included in the SDK.
+
+In case that `dart` is not in your path, try to set the executable option to
+its absolute path. : >
+  " Set the executable path for dart to the absolute path to it.
+  let g:ale_dart_analysis_server_executable = '/usr/local/bin/dart'
+<
+
+Options
+-------------------------------------------------------------------------------
+
+g:ale_dart_analysis_server_executable   *g:ale_dart_analysis_server_executable*
+                                        *b:ale_dart_analysis_server_executable*
+  Type: |String|
+  Default: `'dart'`
+
+  This variable can be set to change the path of dart.
+
+
+===============================================================================
 dartanalyzer                                            *ale-dart-dartanalyzer*
 
 Installation
diff --git a/doc/ale-dhall.txt b/doc/ale-dhall.txt
new file mode 100644
index 00000000..44b0bf32
--- /dev/null
+++ b/doc/ale-dhall.txt
@@ -0,0 +1,52 @@
+===============================================================================
+ALE Dhall Integration                                       *ale-dhall-options*
+
+g:ale_dhall_executable                                 *g:ale_dhall_executable*
+                                                       *b:ale_dhall_executable*
+  Type: |String|
+  Default: `'dhall'`
+
+g:ale_dhall_options                                       g:ale_dhall_options
+                                                          b:ale_dhall_options
+  Type: |String|
+  Default: `''`
+
+  This variable can be set to pass additional options to the 'dhall` executable.
+  This is shared with `dhall-freeze` and `dhall-lint`.
+>
+  let g:dhall_options = '--ascii'
+<
+
+===============================================================================
+dhall-format                                                 *ale-dhall-format*
+
+Dhall
+  (https://dhall-lang.org/)
+
+
+===============================================================================
+dhall-freeze                                                 *ale-dhall-freeze*
+
+Dhall
+  (https://dhall-lang.org/)
+
+g:ale_dhall_freeze_options                         g:ale_dhall_freeze_options
+                                                   b:ale_dhall_freeze_options
+  Type: |String|
+  Default: `''`
+
+  This variable can be set to pass additional options to the 'dhall freeze`
+  executable.
+>
+  let g:dhall_freeze_options = '--all'
+<
+
+===============================================================================
+dhall-lint                                                     *ale-dhall-lint*
+
+Dhall
+  (https://dhall-lang.org/)
+
+
+===============================================================================
+  vim:tw=78:ts=2:sts=2:sw=2:ft=help:norl:
diff --git a/doc/ale-elixir.txt b/doc/ale-elixir.txt
index de9daacf..a4e5c2c6 100644
--- a/doc/ale-elixir.txt
+++ b/doc/ale-elixir.txt
@@ -85,5 +85,12 @@ g:ale_elixir_credo_strict                           *g:ale_elixir_credo_strict*
   Tells credo to run in strict mode or suggest mode.  Set variable to 1 to
   enable --strict mode.
 
+g:ale_elixir_credo_config_file                 g:ale_elixir_credo_config_file
+
+  Type: String
+  Default: ''
+
+  Tells credo to use a custom configuration file.
+
 ===============================================================================
   vim:tw=78:ts=2:sts=2:sw=2:ft=help:norl:
diff --git a/doc/ale-erlang.txt b/doc/ale-erlang.txt
index 38762f08..9ee9a51d 100644
--- a/doc/ale-erlang.txt
+++ b/doc/ale-erlang.txt
@@ -46,6 +46,14 @@ g:ale_erlang_elvis_executable                   *g:ale_erlang_elvis_executable*
 -------------------------------------------------------------------------------
 erlc                                                          *ale-erlang-erlc*
 
+g:ale_erlang_erlc_executable                     *g:ale_erlang_erlc_executable*
+                                                 *b:ale_erlang_erlc_executable*
+  Type: |String|
+  Default: `'erlc'`
+
+  This variable can be changed to specify the erlc executable.
+
+
 g:ale_erlang_erlc_options                           *g:ale_erlang_erlc_options*
                                                     *b:ale_erlang_erlc_options*
   Type: |String|
diff --git a/doc/ale-inko.txt b/doc/ale-inko.txt
new file mode 100644
index 00000000..5ca14af6
--- /dev/null
+++ b/doc/ale-inko.txt
@@ -0,0 +1,22 @@
+===============================================================================
+ALE Inko Integration                                         *ale-inko-options*
+                                                         *ale-integration-inko*
+
+===============================================================================
+Integration Information
+
+  Currently, the only supported linter for Inko is the Inko compiler itself.
+
+===============================================================================
+inko                                                            *ale-inko-inko*
+
+g:ale_inko_inko_executable                         *g:ale_inko_inko_executable*
+                                                   *b:ale_inko_inko_executable*
+  Type: |String|
+  Default: `'inko'`
+
+  This variable can be modified to change the executable path for `inko`.
+
+
+===============================================================================
+  vim:tw=78:ts=2:sts=2:sw=2:ft=help:norl:
diff --git a/doc/ale-json.txt b/doc/ale-json.txt
index 96499a04..dc91e14c 100644
--- a/doc/ale-json.txt
+++ b/doc/ale-json.txt
@@ -102,4 +102,36 @@ See |ale-javascript-prettier| for information about the available options.
 
 
 ===============================================================================
+spectral                                                    *ale-json-spectral*
+
+Website: https://github.com/stoplightio/spectral
+
+Installation
+-------------------------------------------------------------------------------
+
+Install spectral either globally or locally: >
+
+  npm install @stoplight/spectral -g  # global
+  npm install @stoplight/spectral     # local
+<
+
+Options
+-------------------------------------------------------------------------------
+
+g:ale_json_spectral_executable                 *g:ale_json_spectral_executable*
+                                               *b:ale_json_spectral_executable*
+  Type: |String|
+  Default: `'spectral'`
+
+  This variable can be set to change the path to spectral.
+
+g:ale_json_spectral_use_global                 *g:ale_json_spectral_use_global*
+                                               *b:ale_json_spectral_use_global*
+  Type: |String|
+  Default: `get(g:, 'ale_use_global_executables', 0)`
+
+  See |ale-integrations-local-executables|
+
+
+===============================================================================
   vim:tw=78:ts=2:sts=2:sw=2:ft=help:norl:
diff --git a/doc/ale-openapi.txt b/doc/ale-openapi.txt
new file mode 100644
index 00000000..1fc41add
--- /dev/null
+++ b/doc/ale-openapi.txt
@@ -0,0 +1,74 @@
+===============================================================================
+ALE OpenApi Integration                                     *ale-openapi-options*
+
+===============================================================================
+ibm_validator                                        *ale-openapi-ibm-validator*
+
+Website: https://github.com/IBM/openapi-validator
+
+
+Installation
+-------------------------------------------------------------------------------
+
+Install ibm-openapi-validator either globally or locally: >
+
+  npm install ibm-openapi-validator -g  # global
+  npm install ibm-openapi-validator     # local
+<
+Configuration
+-------------------------------------------------------------------------------
+
+OpenAPI files can be written in YAML or JSON so in order for ALE plugins to
+work with these files we must set the buffer |filetype| to either |openapi.yaml|
+or |openapi.json| respectively. This causes ALE to lint the file with linters
+configured for openapi and yaml files or openapi and json files respectively.
+
+For example setting filetype to |openapi.yaml| on a buffer and the following
+|g:ale_linters| configuration will enable linting of openapi files using both
+|ibm_validator| and |yamlint|:
+
+>
+  let g:ale_linters = {
+    \   'yaml': ['yamllint'],
+    \   'openapi': ['ibm_validator']
+  \}
+<
+
+The following plugin will detect openapi files automatically and set the
+filetype to |openapi.yaml| or |openapi.json|:
+
+  https://github.com/hsanson/vim-openapi
+
+Options
+-------------------------------------------------------------------------------
+
+g:ale_openapi_ibm_validator_executable   *g:ale_openapi_ibm_validator_executable*
+                                         *b:ale_openapi_ibm_validator_executable*
+  Type: |String|
+  Default: `'lint-openapi'`
+
+  This variable can be set to change the path to lint-openapi.
+
+
+g:ale_openapi_ibm_validator_options       *g:ale_openapi_ibm_validator_options*
+                                          *b:ale_openapi_ibm_validator_options*
+  Type: |String|
+  Default: `''`
+
+  This variable can be set to pass additional options to lint-openapi.
+
+
+===============================================================================
+prettier                                                   *ale-openapi-prettier*
+
+See |ale-javascript-prettier| for information about the available options.
+
+
+===============================================================================
+yamllint                                                  *ale-openapi-yamllint*
+
+See |ale-yaml-yamllint| for information about the available options.
+
+
+===============================================================================
+  vim:tw=78:ts=2:sts=2:sw=2:ft=help:norl:
diff --git a/doc/ale-python.txt b/doc/ale-python.txt
index f0c8bfb8..1f263e84 100644
--- a/doc/ale-python.txt
+++ b/doc/ale-python.txt
@@ -36,6 +36,8 @@ ALE will look for configuration files with the following filenames. >
   .pylintrc
   Pipfile
   Pipfile.lock
+  poetry.lock 
+  pyproject.toml
 <
 
 The first directory containing any of the files named above will be used.
@@ -280,6 +282,15 @@ g:ale_python_isort_use_global                   *g:ale_python_isort_use_global*
   See |ale-integrations-local-executables|
 
 
+g:ale_python_isort_auto_pipenv                 *g:ale_python_isort_auto_pipenv*
+                                               *b:ale_python_isort_auto_pipenv*
+  Type: |Number|
+  Default: `0`
+
+  Detect whether the file is inside a pipenv, and set the executable to `pipenv`
+  if true. This is overridden by a manually-set executable.
+
+
 ===============================================================================
 mypy                                                          *ale-python-mypy*
 
diff --git a/doc/ale-ruby.txt b/doc/ale-ruby.txt
index 8815404a..edc6144a 100644
--- a/doc/ale-ruby.txt
+++ b/doc/ale-ruby.txt
@@ -177,6 +177,16 @@ g:ale_ruby_sorbet_options                           *g:ale_ruby_sorbet_options*
   This variable can be changed to modify flags given to sorbet.
 
 
+g:ale_ruby_sorbet_enable_watchman           *g:ale_ruby_sorbet_enable_watchman*
+                                            *b:ale_ruby_sorbet_enable_watchman*
+  Type: |Number|
+  Default: `0`
+
+  Whether or not to use watchman to let the LSP server to know about changes
+  to files from outside of vim. Defaults to disable watchman because it
+  requires watchman to be installed separately from sorbet.
+
+
 ===============================================================================
 standardrb                                                *ale-ruby-standardrb*
 
diff --git a/doc/ale-salt.tmt b/doc/ale-salt.tmt
new file mode 100644
index 00000000..ac500d37
--- /dev/null
+++ b/doc/ale-salt.tmt
@@ -0,0 +1,43 @@
+===============================================================================
+ALE SALT Integration                                         *ale-salt-options*
+
+===============================================================================
+salt-lint                                                  *ale-salt-salt-lint*
+
+Website: https://github.com/warpnet/salt-lint
+
+
+Installation
+-------------------------------------------------------------------------------
+
+Install salt-lint in your a virtualenv directory, locally, or globally: >
+
+  pip install salt-lint # After activating virtualenv
+  pip install --user salt-lint # Install to ~/.local/bin
+  sudo pip install salt-lint # Install globally
+
+See |g:ale_virtualenv_dir_names| for configuring how ALE searches for
+virtualenv directories.
+
+
+Options
+-------------------------------------------------------------------------------
+
+g:ale_salt_salt-lint_executable                *g:ale_salt_salt_lint_executable*
+                                               *b:ale_salt_salt_lint_executable*
+  Type: |String|
+  Default: `'salt-lint'`
+
+  This variable can be set to change the path to salt-lint.
+
+
+g:ale_salt_salt-lint_options                      *g:ale_salt_salt-lint_options*
+                                                  *b:ale_salt_salt-lint_options*
+  Type: |String|
+  Default: `''`
+
+  This variable can be set to pass additional options to salt-lint.
+
+
+===============================================================================
+  vim:tw=78:ts=2:sts=2:sw=2:ft=help:norl:
diff --git a/doc/ale-supported-languages-and-tools.txt b/doc/ale-supported-languages-and-tools.txt
index 36e27932..ac99f6ff 100644
--- a/doc/ale-supported-languages-and-tools.txt
+++ b/doc/ale-supported-languages-and-tools.txt
@@ -13,12 +13,16 @@ Notes:
 `!!` These linters check only files on disk. See |ale-lint-file-linters|
 
 * Ada
+  * `ada_language_server`
   * `gcc`
   * `gnatpp`
 * Ansible
   * `ansible-lint`
 * API Blueprint
   * `drafter`
+* APKBUILD
+  * `apkbuild-lint`
+  * `secfixes-check`
 * AsciiDoc
   * `alex`!!
   * `languagetool`!!
@@ -49,8 +53,8 @@ Notes:
   * `astyle`
   * `ccls`
   * `clang` (`cc`)
-  * `clangd`
   * `clang-format`
+  * `clangd`
   * `clangtidy`!!
   * `cppcheck`
   * `cpplint`!!
@@ -67,9 +71,9 @@ Notes:
   * `astyle`
   * `ccls`
   * `clang` (`cc`)
+  * `clang-format`
   * `clangcheck`!!
   * `clangd`
-  * `clang-format`
   * `clangtidy`!!
   * `clazy`!!
   * `cppcheck`
@@ -116,11 +120,14 @@ Notes:
 * Dafny
   * `dafny`!!
 * Dart
+  * `analysis_server`
   * `dartanalyzer`!!
   * `dartfmt`!!
   * `language_server`
 * Dhall
   * `dhall-format`
+  * `dhall-freeze`
+  * `dhall-lint`
 * Dockerfile
   * `dockerfile_lint`
   * `hadolint`
@@ -140,9 +147,9 @@ Notes:
   * `erubis`
   * `ruumba`
 * Erlang
+  * `SyntaxErl`
   * `elvis`!!
   * `erlc`
-  * `SyntaxErl`
 * Fish
   * `fish` (-n flag)
 * Fortran
@@ -160,17 +167,17 @@ Notes:
 * Go
   * `bingo`
   * `go build`!!
+  * `go mod`!!
+  * `go vet`!!
   * `gofmt`
   * `goimports`
   * `golangci-lint`!!
   * `golangserver`
   * `golint`
   * `gometalinter`!!
-  * `go mod`!!
   * `gopls`
   * `gosimple`!!
   * `gotype`!!
-  * `go vet`!!
   * `revive`!!
   * `staticcheck`!!
 * GraphQL
@@ -203,10 +210,10 @@ Notes:
 * HCL
   * `terraform-fmt`
 * HTML
+  * `HTMLHint`
   * `alex`!!
   * `fecs`
   * `html-beautify`
-  * `HTMLHint`
   * `prettier`
   * `proselint`
   * `tidy`
@@ -215,15 +222,17 @@ Notes:
   * `idris`
 * Ink
   * `ink-language-server`
+* Inko
+  * `inko` !!
 * ISPC
   * `ispc`!!
 * Java
+  * `PMD`
   * `checkstyle`
   * `eclipselsp`
   * `google-java-format`
   * `javac`
   * `javalsp`
-  * `PMD`
   * `uncrustify`
 * JavaScript
   * `eslint`
@@ -242,6 +251,7 @@ Notes:
   * `jq`
   * `jsonlint`
   * `prettier`
+  * `spectral`
 * Julia
   * `languageserver`
 * Kotlin
@@ -300,6 +310,7 @@ Notes:
 * nix
   * `nix-instantiate`
   * `nixpkgs-fmt`
+  * `rnix-lsp`
 * nroff
   * `alex`!!
   * `proselint`
@@ -318,6 +329,10 @@ Notes:
   * `ocamlformat`
   * `ocp-indent`
   * `ols`
+* OpenApi
+  * `ibm_validator`
+  * `prettier`
+  * `yamllint`
 * Pawn
   * `uncrustify`
 * Perl
@@ -330,10 +345,10 @@ Notes:
   * `intelephense`
   * `langserver`
   * `phan`
+  * `php -l`
+  * `php-cs-fixer`
   * `phpcbf`
   * `phpcs`
-  * `php-cs-fixer`
-  * `php -l`
   * `phpmd`
   * `phpstan`
   * `psalm`!!
@@ -394,6 +409,8 @@ Notes:
   * `styler`
 * Racket
   * `raco`
+* Re:VIEW
+  * `redpen`
 * ReasonML
   * `merlin`
   * `ols`
@@ -407,8 +424,6 @@ Notes:
   * `textlint`
   * `vale`
   * `write-good`
-* Re:VIEW
-  * `redpen`
 * RPM spec
   * `rpmlint`
 * Ruby
@@ -428,6 +443,8 @@ Notes:
   * `rust-analyzer`
   * `rustc` (see |ale-integration-rust|)
   * `rustfmt`
+* Salt
+  * `salt-lint`
 * Sass
   * `sass-lint`
   * `stylelint`
@@ -453,10 +470,10 @@ Notes:
   * `solium`
 * SQL
   * `pgformatter`
+  * `sql-lint`
   * `sqlfmt`
   * `sqlformat`
   * `sqlint`
-  * `sql-lint`
 * Stylus
   * `stylelint`
 * SugarSS
@@ -486,6 +503,7 @@ Notes:
 * Thrift
   * `thrift`
 * TypeScript
+  * `deno`
   * `eslint`
   * `fecs`
   * `prettier`
@@ -495,6 +513,7 @@ Notes:
   * `typecheck`
 * VALA
   * `uncrustify`
+  * `vala_lint`!!
 * Verilog
   * `hdl-checker`
   * `iverilog`
@@ -523,6 +542,7 @@ Notes:
   * `xmllint`
 * YAML
   * `prettier`
+  * `spectral`
   * `swaglint`
   * `yamlfix`
   * `yamllint`
diff --git a/doc/ale-typescript.txt b/doc/ale-typescript.txt
index 2c50d119..a2446c2c 100644
--- a/doc/ale-typescript.txt
+++ b/doc/ale-typescript.txt
@@ -3,6 +3,39 @@ ALE TypeScript Integration                             *ale-typescript-options*
 
 
 ===============================================================================
+deno                                                      *ale-typescript-deno*
+
+Starting from version 1.6.0, Deno comes with its own language server. Earlier
+versions are not supported.
+
+g:ale_deno_executable                                   *g:ale_deno_executable*
+                                                        *b:ale_deno_executable*
+  Type: |String|
+  Default: `'deno'`
+
+
+g:ale_deno_lsp_project_root                       *g:ale_deno_lsp_project_root*
+                                                  *b:ale_deno_lsp_project_root*
+  Type: |String|
+  Default: `''`
+
+  If this variable is left unset, ALE will try to find the project root by
+  executing the following steps in the given order:
+
+  1. Find an ancestor directory containing a tsconfig.json.
+  2. Find an ancestory irectory containing a .git folder.
+  3. Use the directory of the current buffer (if the buffer was opened from
+     a file).
+
+g:ale_deno_unstable                                       *g:ale_deno_unstable*
+                                                          *b:ale_deno_unstable*
+  Type: |Number|
+  Default: `0`
+
+  Enable or disable unstable Deno features and APIs.
+
+
+===============================================================================
 eslint                                                  *ale-typescript-eslint*
 
 Because of how TypeScript compiles code to JavaScript and how interrelated
@@ -139,4 +172,31 @@ g:ale_typescript_tsserver_use_global     *g:ale_typescript_tsserver_use_global*
 
 
 ===============================================================================
+xo                                                          *ale-typescript-xo*
+
+g:ale_typescript_xo_executable                 *g:ale_typescript_xo_executable*
+                                               *b:ale_typescript_xo_executable*
+  Type: |String|
+  Default: `'xo'`
+
+  See |ale-integrations-local-executables|
+
+
+g:ale_typescript_xo_options                       *g:ale_typescript_xo_options*
+                                                  *b:ale_typescript_xo_options*
+  Type: |String|
+  Default: `''`
+
+  This variable can be set to pass additional options to xo.
+
+
+g:ale_typescript_xo_use_global                 *g:ale_typescript_xo_use_global*
+                                               *b:ale_typescript_xo_use_global*
+  Type: |Number|
+  Default: `get(g:, 'ale_use_global_executables', 0)`
+
+  See |ale-integrations-local-executables|
+
+
+===============================================================================
   vim:tw=78:ts=2:sts=2:sw=2:ft=help:norl:
diff --git a/doc/ale-vala.txt b/doc/ale-vala.txt
index ca24bcf4..d48f68bb 100644
--- a/doc/ale-vala.txt
+++ b/doc/ale-vala.txt
@@ -9,4 +9,25 @@ See |ale-c-uncrustify| for information about the available options.
 
 
 ===============================================================================
+Vala-Lint                                                  *ale-vala-vala-lint*
+
+g:vala_vala_lint_executable                       *g:vala_vala_lint_executable*
+                                                  *b:vala_vala_lint_executable*
+  Type: |String|
+  Default: `'io.elementary.vala-lint'`
+
+  This variable can be set to specify a Vala-Lint executable file.
+
+
+g:vala_vala_lint_config_filename             *g:vala_vala_lint_config_filename*
+                                             *b:vala_vala_lint_config_filename*
+  Type: |String|
+  Default: `'vala-lint.conf'`
+
+  This variable can be set to specify a Vala-Lint config filename. When a file
+  with the specified name was not found or this variable was set to empty,
+  Vala-Lint will be executed without specifying a config filename.
+
+
+===============================================================================
 vim:tw=78:ts=2:sts=2:sw=2:ft=help:norl:
diff --git a/doc/ale-yaml.txt b/doc/ale-yaml.txt
index 61bfc139..04871403 100644
--- a/doc/ale-yaml.txt
+++ b/doc/ale-yaml.txt
@@ -16,6 +16,38 @@ Install prettier either globally or locally: >
   npm install prettier     # local
 <
 ===============================================================================
+spectral                                                    *ale-yaml-spectral*
+
+Website: https://github.com/stoplightio/spectral
+
+Installation
+-------------------------------------------------------------------------------
+
+Install spectral either globally or locally: >
+
+  npm install @stoplight/spectral -g  # global
+  npm install @stoplight/spectral     # local
+<
+
+Options
+-------------------------------------------------------------------------------
+
+g:ale_yaml_spectral_executable                 *g:ale_yaml_spectral_executable*
+                                               *b:ale_yaml_spectral_executable*
+  Type: |String|
+  Default: `'spectral'`
+
+  This variable can be set to change the path to spectral.
+
+g:ale_yaml_spectral_use_global                 *g:ale_yaml_spectral_use_global*
+                                               *b:ale_yaml_spectral_use_global*
+  Type: |String|
+  Default: `get(g:, 'ale_use_global_executables', 0)`
+
+  See |ale-integrations-local-executables|
+
+
+===============================================================================
 swaglint                                                    *ale-yaml-swaglint*
 
 Website: https://github.com/byCedric/swaglint
diff --git a/doc/ale.txt b/doc/ale.txt
index f9f40d12..bb87ed1a 100644
--- a/doc/ale.txt
+++ b/doc/ale.txt
@@ -646,6 +646,9 @@ problem will be displayed in a balloon instead of hover information.
 Hover information can be displayed in the preview window instead by setting
 |g:ale_hover_to_preview| to `1`.
 
+When using Neovim, if |g:ale_hover_to_floating_preview| or |g:ale_floating_preview|
+is set to 1, the hover information will show in a floating window.
+
 For Vim 8.1+ terminals, mouse hovering is disabled by default. Enabling
 |balloonexpr| commands in terminals can cause scrolling issues in terminals,
 so ALE will not attempt to show balloons unless |g:ale_set_balloons| is set to
@@ -954,6 +957,15 @@ g:ale_default_navigation                             *g:ale_default_navigation*
   buffer, such as for |ALEFindReferences|, or |ALEGoToDefinition|.
 
 
+g:ale_detail_to_floating_preview                            *g:ale_detail_to_floating_preview*
+                                                            *b:ale_detail_to_floating_preview*
+  Type: |Number|
+  Default: `0`
+
+  When this option is set to `1`, Neovim will use a floating window for
+  ALEDetail output.
+
+
 g:ale_disable_lsp                                           *g:ale_disable_lsp*
                                                             *b:ale_disable_lsp*
 
@@ -1177,6 +1189,16 @@ g:ale_fix_on_save_ignore                             *g:ale_fix_on_save_ignore*
   let g:ale_fix_on_save_ignore = [g:AddBar]
 <
 
+g:ale_floating_preview                                       *g:ale_floating_preview*
+
+  Type: |Number|
+  Default: `0`
+
+  When set to `1`, Neovim will use a floating window for ale's preview window.
+  This is equivalent to setting |g:ale_hover_to_floating_preview| and
+  |g:ale_detail_to_floating_preview| to `1`.
+
+
 g:ale_history_enabled                                   *g:ale_history_enabled*
 
   Type: |Number|
@@ -1235,6 +1257,14 @@ g:ale_hover_to_preview                                 *g:ale_hover_to_preview*
   instead of in balloons or the message line.
 
 
+g:ale_hover_to_floating_preview                       *g:ale_hover_to_floating_preview*
+                                                      *b:ale_hover_to_floating_preview*
+  Type: |Number|
+  Default: `0`
+
+  If set to `1`, Neovim will use floating windows for hover messages.
+
+
 g:ale_keep_list_window_open                       *g:ale_keep_list_window_open*
                                                   *b:ale_keep_list_window_open*
   Type: |Number|
@@ -1526,11 +1556,13 @@ g:ale_linters                                                   *g:ale_linters*
   following values: >
 
   {
+  \   'apkbuild': ['apkbuild_lint', 'secfixes_check'],
   \   'csh': ['shell'],
   \   'elixir': ['credo', 'dialyxir', 'dogma'],
   \   'go': ['gofmt', 'golint', 'go vet'],
   \   'hack': ['hack'],
   \   'help': [],
+  \   'inko': ['inko'],
   \   'perl': ['perlcritic'],
   \   'perl6': [],
   \   'python': ['flake8', 'mypy', 'pylint', 'pyright'],
@@ -1677,6 +1709,15 @@ g:ale_lsp_show_message_severity               *g:ale_lsp_show_message_severity*
   `'disabled'`    - Doesn't display any information at all.
 
 
+g:ale_lsp_suggestions                                   *g:ale_lsp_suggestions*
+
+  Type: |Number|
+  Default: 1
+
+  This variable defines if suggestions must be collected from LSP or tsserver
+  and shown.
+
+
 g:ale_lsp_root                                                 *g:ale_lsp_root*
                                                                *b:ale_lsp_root*
 
@@ -2556,8 +2597,12 @@ documented in additional help files.
   ada.....................................|ale-ada-options|
     gcc...................................|ale-ada-gcc|
     gnatpp................................|ale-ada-gnatpp|
+    ada-language-server...................|ale-ada-language-server|
   ansible.................................|ale-ansible-options|
     ansible-lint..........................|ale-ansible-ansible-lint|
+  apkbuild................................|ale-apkbuild-options|
+    apkbuild-lint.........................|ale-apkbuild-apkbuild-lint|
+    secfixes-check........................|ale-apkbuild-secfixes-check|
   asciidoc................................|ale-asciidoc-options|
     write-good............................|ale-asciidoc-write-good|
     textlint..............................|ale-asciidoc-textlint|
@@ -2621,9 +2666,16 @@ documented in additional help files.
     dfmt..................................|ale-d-dfmt|
     dls...................................|ale-d-dls|
     uncrustify............................|ale-d-uncrustify|
+  dafny...................................|ale-dafny-options|
+    dafny.................................|ale-dafny-dafny|
   dart....................................|ale-dart-options|
+    analysis_server.......................|ale-dart-analysis_server|
     dartanalyzer..........................|ale-dart-dartanalyzer|
     dartfmt...............................|ale-dart-dartfmt|
+  dhall...................................|ale-dhall-options|
+    dhall-format..........................|ale-dhall-format|
+    dhall-freeze..........................|ale-dhall-freeze|
+    dhall-lint............................|ale-dhall-lint|
   dockerfile..............................|ale-dockerfile-options|
     dockerfile_lint.......................|ale-dockerfile-dockerfile_lint|
     hadolint..............................|ale-dockerfile-hadolint|
@@ -2708,6 +2760,8 @@ documented in additional help files.
     idris.................................|ale-idris-idris|
   ink.....................................|ale-ink-options|
     ink-language-server...................|ale-ink-language-server|
+  inko....................................|ale-inko-options|
+    inko..................................|ale-inko-inko|
   ispc....................................|ale-ispc-options|
     ispc..................................|ale-ispc-ispc|
   java....................................|ale-java-options|
@@ -2735,6 +2789,7 @@ documented in additional help files.
     jsonlint..............................|ale-json-jsonlint|
     jq....................................|ale-json-jq|
     prettier..............................|ale-json-prettier|
+    spectral..............................|ale-json-spectral|
   julia...................................|ale-julia-options|
     languageserver........................|ale-julia-languageserver|
   kotlin..................................|ale-kotlin-options|
@@ -2787,6 +2842,10 @@ documented in additional help files.
     ols...................................|ale-ocaml-ols|
     ocamlformat...........................|ale-ocaml-ocamlformat|
     ocp-indent............................|ale-ocaml-ocp-indent|
+  openapi.................................|ale-openapi-options|
+    ibm_validator.........................|ale-openapi-ibm-validator|
+    prettier..............................|ale-openapi-prettier|
+    yamllint..............................|ale-openapi-yamllint|
   pawn....................................|ale-pawn-options|
     uncrustify............................|ale-pawn-uncrustify|
   perl....................................|ale-perl-options|
@@ -2882,6 +2941,8 @@ documented in additional help files.
     rls...................................|ale-rust-rls|
     rustc.................................|ale-rust-rustc|
     rustfmt...............................|ale-rust-rustfmt|
+  salt....................................|ale-salt-options|
+    salt-lint.............................|ale-salt-salt-lint|
   sass....................................|ale-sass-options|
     sasslint..............................|ale-sass-sasslint|
     stylelint.............................|ale-sass-stylelint|
@@ -2938,11 +2999,13 @@ documented in additional help files.
   thrift..................................|ale-thrift-options|
     thrift................................|ale-thrift-thrift|
   typescript..............................|ale-typescript-options|
+    deno..................................|ale-typescript-deno|
     eslint................................|ale-typescript-eslint|
     prettier..............................|ale-typescript-prettier|
     standard..............................|ale-typescript-standard|
     tslint................................|ale-typescript-tslint|
     tsserver..............................|ale-typescript-tsserver|
+    xo....................................|ale-typescript-xo|
   vala....................................|ale-vala-options|
     uncrustify............................|ale-vala-uncrustify|
   verilog/systemverilog...................|ale-verilog-options|
@@ -2956,11 +3019,11 @@ documented in additional help files.
     hdl-checker...........................|ale-vhdl-hdl-checker|
     vcom..................................|ale-vhdl-vcom|
     xvhdl.................................|ale-vhdl-xvhdl|
+  vim help................................|ale-vim-help-options|
+    write-good............................|ale-vim-help-write-good|
   vim.....................................|ale-vim-options|
     vimls.................................|ale-vim-vimls|
     vint..................................|ale-vim-vint|
-  vim help................................|ale-vim-help-options|
-    write-good............................|ale-vim-help-write-good|
   vue.....................................|ale-vue-options|
     prettier..............................|ale-vue-prettier|
     vls...................................|ale-vue-vls|
@@ -2970,6 +3033,7 @@ documented in additional help files.
     xmllint...............................|ale-xml-xmllint|
   yaml....................................|ale-yaml-options|
     prettier..............................|ale-yaml-prettier|
+    spectral..............................|ale-yaml-spectral|
     swaglint..............................|ale-yaml-swaglint|
     yamlfix...............................|ale-yaml-yamlfix|
     yamllint..............................|ale-yaml-yamllint|
diff --git a/plugin/ale.vim b/plugin/ale.vim
index 5b7be116..1735715d 100644
--- a/plugin/ale.vim
+++ b/plugin/ale.vim
@@ -138,6 +138,15 @@ let g:ale_set_balloons = get(g:, 'ale_set_balloons', has('balloon_eval') && has(
 " Use preview window for hover messages.
 let g:ale_hover_to_preview = get(g:, 'ale_hover_to_preview', 0)
 
+" Float preview windows in Neovim
+let g:ale_floating_preview = get(g:, 'ale_floating_preview', 0)
+
+" Hovers use floating windows in Neovim
+let g:ale_hover_to_floating_preview = get(g:, 'ale_hover_to_floating_preview', 0)
+
+" Detail uses floating windows in Neovim
+let g:ale_detail_to_floating_preview = get(g:, 'ale_detail_to_floating_preview', 0)
+
 " This flag can be set to 0 to disable warnings for trailing whitespace
 let g:ale_warn_about_trailing_whitespace = get(g:, 'ale_warn_about_trailing_whitespace', 1)
 " This flag can be set to 0 to disable warnings for trailing blank lines
diff --git a/run-tests b/run-tests
index 1d452a72..06a05384 100755
--- a/run-tests
+++ b/run-tests
@@ -10,7 +10,7 @@ set -u
 #
 
 image=w0rp/ale
-current_image_id=f58c7bf8900f
+current_image_id=1c04720f5d17
 
 # Used in all test scripts for running the selected Docker image.
 DOCKER_RUN_IMAGE="$image"
diff --git a/supported-tools.md b/supported-tools.md
index 96ef273b..90485281 100644
--- a/supported-tools.md
+++ b/supported-tools.md
@@ -22,12 +22,16 @@ formatting.
 ---
 
 * Ada
+  * [ada_language_server](https://github.com/AdaCore/ada_language_server)
   * [gcc](https://gcc.gnu.org)
   * [gnatpp](https://docs.adacore.com/gnat_ugn-docs/html/gnat_ugn/gnat_ugn/gnat_utility_programs.html#the-gnat-pretty-printer-gnatpp) :floppy_disk:
 * Ansible
   * [ansible-lint](https://github.com/willthames/ansible-lint)
 * API Blueprint
   * [drafter](https://github.com/apiaryio/drafter)
+* APKBUILD
+  * [apkbuild-lint](https://gitlab.alpinelinux.org/Leo/atools)
+  * [secfixes-check](https://gitlab.alpinelinux.org/Leo/atools)
 * AsciiDoc
   * [alex](https://github.com/wooorm/alex) :floppy_disk:
   * [languagetool](https://languagetool.org/) :floppy_disk:
@@ -58,8 +62,8 @@ formatting.
   * [astyle](http://astyle.sourceforge.net/)
   * [ccls](https://github.com/MaskRay/ccls)
   * [clang](http://clang.llvm.org/)
-  * [clangd](https://clang.llvm.org/extra/clangd.html)
   * [clang-format](https://clang.llvm.org/docs/ClangFormat.html)
+  * [clangd](https://clang.llvm.org/extra/clangd.html)
   * [clangtidy](http://clang.llvm.org/extra/clang-tidy/) :floppy_disk:
   * [cppcheck](http://cppcheck.sourceforge.net)
   * [cpplint](https://github.com/google/styleguide/tree/gh-pages/cpplint)
@@ -76,9 +80,9 @@ formatting.
   * [astyle](http://astyle.sourceforge.net/)
   * [ccls](https://github.com/MaskRay/ccls)
   * [clang](http://clang.llvm.org/)
+  * [clang-format](https://clang.llvm.org/docs/ClangFormat.html)
   * [clangcheck](http://clang.llvm.org/docs/ClangCheck.html) :floppy_disk:
   * [clangd](https://clang.llvm.org/extra/clangd.html)
-  * [clang-format](https://clang.llvm.org/docs/ClangFormat.html)
   * [clangtidy](http://clang.llvm.org/extra/clang-tidy/) :floppy_disk:
   * [clazy](https://github.com/KDE/clazy) :floppy_disk:
   * [cppcheck](http://cppcheck.sourceforge.net)
@@ -125,11 +129,14 @@ formatting.
 * Dafny
   * [dafny](https://rise4fun.com/Dafny) :floppy_disk:
 * Dart
+  * [analysis_server](https://github.com/dart-lang/sdk/tree/master/pkg/analysis_server)
   * [dartanalyzer](https://github.com/dart-lang/sdk/tree/master/pkg/analyzer_cli) :floppy_disk:
   * [dartfmt](https://github.com/dart-lang/sdk/tree/master/utils/dartfmt)
   * [language_server](https://github.com/natebosch/dart_language_server)
 * Dhall
   * [dhall-format](https://github.com/dhall-lang/dhall-lang)
+  * [dhall-freeze](https://github.com/dhall-lang/dhall-lang)
+  * [dhall-lint](https://github.com/dhall-lang/dhall-lang)
 * Dockerfile
   * [dockerfile_lint](https://github.com/projectatomic/dockerfile_lint)
   * [hadolint](https://github.com/hadolint/hadolint)
@@ -149,9 +156,9 @@ formatting.
   * [erubis](https://github.com/kwatch/erubis)
   * [ruumba](https://github.com/ericqweinstein/ruumba)
 * Erlang
+  * [SyntaxErl](https://github.com/ten0s/syntaxerl)
   * [elvis](https://github.com/inaka/elvis) :floppy_disk:
   * [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
@@ -169,17 +176,17 @@ formatting.
 * Go
   * [bingo](https://github.com/saibing/bingo) :warning:
   * [go build](https://golang.org/cmd/go/) :warning: :floppy_disk:
+  * [go mod](https://golang.org/cmd/go/) :warning: :floppy_disk:
+  * [go vet](https://golang.org/cmd/vet/) :floppy_disk:
   * [gofmt](https://golang.org/cmd/gofmt/)
   * [goimports](https://godoc.org/golang.org/x/tools/cmd/goimports) :warning:
   * [golangci-lint](https://github.com/golangci/golangci-lint) :warning: :floppy_disk:
   * [golangserver](https://github.com/sourcegraph/go-langserver) :warning:
   * [golint](https://godoc.org/github.com/golang/lint)
   * [gometalinter](https://github.com/alecthomas/gometalinter) :warning: :floppy_disk:
-  * [go mod](https://golang.org/cmd/go/) :warning: :floppy_disk:
   * [gopls](https://github.com/golang/go/wiki/gopls) :warning:
   * [gosimple](https://github.com/dominikh/go-tools/tree/master/cmd/gosimple) :warning: :floppy_disk:
   * [gotype](https://godoc.org/golang.org/x/tools/cmd/gotype) :warning: :floppy_disk:
-  * [go vet](https://golang.org/cmd/vet/) :floppy_disk:
   * [revive](https://github.com/mgechev/revive) :warning: :floppy_disk:
   * [staticcheck](https://github.com/dominikh/go-tools/tree/master/cmd/staticcheck) :warning: :floppy_disk:
 * GraphQL
@@ -212,10 +219,10 @@ formatting.
 * HCL
   * [terraform-fmt](https://github.com/hashicorp/terraform)
 * HTML
+  * [HTMLHint](http://htmlhint.com/)
   * [alex](https://github.com/wooorm/alex) :floppy_disk:
   * [fecs](http://fecs.baidu.com/)
   * [html-beautify](https://beautifier.io/)
-  * [HTMLHint](http://htmlhint.com/)
   * [prettier](https://github.com/prettier/prettier)
   * [proselint](http://proselint.com/)
   * [tidy](http://www.html-tidy.org/)
@@ -224,15 +231,17 @@ formatting.
   * [idris](http://www.idris-lang.org/)
 * Ink
   * [ink-language-server](https://github.com/ephread/ink-language-server)
+* Inko
+  * [inko](https://inko-lang.org/) :floppy_disk:
 * ISPC
   * [ispc](https://ispc.github.io/) :floppy_disk:
 * Java
+  * [PMD](https://pmd.github.io/)
   * [checkstyle](http://checkstyle.sourceforge.net)
   * [eclipselsp](https://github.com/eclipse/eclipse.jdt.ls)
   * [google-java-format](https://github.com/google/google-java-format)
   * [javac](http://www.oracle.com/technetwork/java/javase/downloads/index.html)
   * [javalsp](https://github.com/georgewfraser/vscode-javac)
-  * [PMD](https://pmd.github.io/)
   * [uncrustify](https://github.com/uncrustify/uncrustify)
 * JavaScript
   * [eslint](http://eslint.org/)
@@ -251,6 +260,7 @@ formatting.
   * [jq](https://stedolan.github.io/jq/)
   * [jsonlint](http://zaa.ch/jsonlint/)
   * [prettier](https://github.com/prettier/prettier)
+  * [spectral](https://github.com/stoplightio/spectral)
 * Julia
   * [languageserver](https://github.com/JuliaEditorSupport/LanguageServer.jl)
 * Kotlin
@@ -309,6 +319,7 @@ formatting.
 * nix
   * [nix-instantiate](http://nixos.org/nix/manual/#sec-nix-instantiate)
   * [nixpkgs-fmt](https://github.com/nix-community/nixpkgs-fmt)
+  * [rnix-lsp](https://github.com/nix-community/rnix-lsp)
 * nroff
   * [alex](https://github.com/wooorm/alex) :floppy_disk:
   * [proselint](http://proselint.com/)
@@ -327,6 +338,10 @@ formatting.
   * [ocamlformat](https://github.com/ocaml-ppx/ocamlformat)
   * [ocp-indent](https://github.com/OCamlPro/ocp-indent)
   * [ols](https://github.com/freebroccolo/ocaml-language-server)
+* OpenApi
+  * [ibm_validator](https://github.com/IBM/openapi-validator)
+  * [prettier](https://github.com/prettier/prettier)
+  * [yamllint](https://yamllint.readthedocs.io/)
 * Pawn
   * [uncrustify](https://github.com/uncrustify/uncrustify)
 * Perl
@@ -339,10 +354,10 @@ formatting.
   * [intelephense](https://github.com/bmewburn/intelephense-docs)
   * [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/)
+  * [php-cs-fixer](http://cs.sensiolabs.org/)
   * [phpcbf](https://github.com/squizlabs/PHP_CodeSniffer)
   * [phpcs](https://github.com/squizlabs/PHP_CodeSniffer)
-  * [php-cs-fixer](http://cs.sensiolabs.org/)
-  * [php -l](https://secure.php.net/)
   * [phpmd](https://phpmd.org)
   * [phpstan](https://github.com/phpstan/phpstan)
   * [psalm](https://getpsalm.org) :floppy_disk:
@@ -403,6 +418,8 @@ formatting.
   * [styler](https://github.com/r-lib/styler)
 * Racket
   * [raco](https://docs.racket-lang.org/raco/)
+* Re:VIEW
+  * [redpen](http://redpen.cc/)
 * 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)
@@ -416,8 +433,6 @@ formatting.
   * [textlint](https://textlint.github.io/)
   * [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) :warning: (see `:help ale-integration-spec`)
 * Ruby
@@ -437,6 +452,8 @@ formatting.
   * [rust-analyzer](https://github.com/rust-analyzer/rust-analyzer) :warning:
   * [rustc](https://www.rust-lang.org/) :warning:
   * [rustfmt](https://github.com/rust-lang-nursery/rustfmt)
+* Salt
+  * [salt-lint](https://github.com/warpnet/salt-lint)
 * Sass
   * [sass-lint](https://www.npmjs.com/package/sass-lint)
   * [stylelint](https://github.com/stylelint/stylelint)
@@ -462,10 +479,10 @@ formatting.
   * [solium](https://github.com/duaraghav8/Solium)
 * SQL
   * [pgformatter](https://github.com/darold/pgFormatter)
+  * [sql-lint](https://github.com/joereynolds/sql-lint)
   * [sqlfmt](https://github.com/jackc/sqlfmt)
   * [sqlformat](https://github.com/andialbrecht/sqlparse)
   * [sqlint](https://github.com/purcell/sqlint)
-  * [sql-lint](https://github.com/joereynolds/sql-lint)
 * Stylus
   * [stylelint](https://github.com/stylelint/stylelint)
 * SugarSS
@@ -495,6 +512,7 @@ formatting.
 * Thrift
   * [thrift](http://thrift.apache.org/)
 * TypeScript
+  * [deno](https://deno.land/)
   * [eslint](http://eslint.org/)
   * [fecs](http://fecs.baidu.com/)
   * [prettier](https://github.com/prettier/prettier)
@@ -504,6 +522,7 @@ formatting.
   * typecheck
 * VALA
   * [uncrustify](https://github.com/uncrustify/uncrustify)
+  * [vala_lint](https://github.com/vala-lang/vala-lint) :floppy_disk:
 * Verilog
   * [hdl-checker](https://pypi.org/project/hdl-checker)
   * [iverilog](https://github.com/steveicarus/iverilog)
@@ -532,6 +551,7 @@ formatting.
   * [xmllint](http://xmlsoft.org/xmllint.html)
 * YAML
   * [prettier](https://github.com/prettier/prettier)
+  * [spectral](https://github.com/stoplightio/spectral)
   * [swaglint](https://github.com/byCedric/swaglint)
   * [yamlfix](https://lyz-code.github.io/yamlfix)
   * [yamllint](https://yamllint.readthedocs.io/)
diff --git a/test/command_callback/inko_paths/test.inko b/test/command_callback/inko_paths/test.inko
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/command_callback/inko_paths/test.inko
diff --git a/test/command_callback/inko_paths/tests/test/test_foo.inko b/test/command_callback/inko_paths/tests/test/test_foo.inko
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/command_callback/inko_paths/tests/test/test_foo.inko
diff --git a/test/command_callback/spectral_paths/node_modules/.bin/spectral b/test/command_callback/spectral_paths/node_modules/.bin/spectral
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/command_callback/spectral_paths/node_modules/.bin/spectral
diff --git a/test/command_callback/spectral_paths/openapi.yaml b/test/command_callback/spectral_paths/openapi.yaml
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/command_callback/spectral_paths/openapi.yaml
diff --git a/test/command_callback/test_adals_command_callbacks.vader b/test/command_callback/test_adals_command_callbacks.vader
new file mode 100644
index 00000000..5a04594e
--- /dev/null
+++ b/test/command_callback/test_adals_command_callbacks.vader
@@ -0,0 +1,17 @@
+Before:
+  call ale#assert#SetUpLinterTest('ada', 'adals')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(Sets adals executable):
+  let g:ale_ada_adals_executable = '/path/to /Ada'
+  AssertLinter '/path/to /Ada', ale#Escape('/path/to /Ada')
+
+Execute(Sets adals encoding):
+  let b:ale_ada_adals_encoding = 'iso-8859-1'
+  AssertLSPConfig {'ada.defaultCharset': 'iso-8859-1', 'ada.projectFile': 'default.gpr'}
+
+Execute(Sets adals project):
+  let g:ale_ada_adals_project = 'myproject.gpr'
+  AssertLSPConfig {'ada.defaultCharset': 'utf-8', 'ada.projectFile': 'myproject.gpr'}
diff --git a/test/command_callback/test_clang_tidy_command_callback.vader b/test/command_callback/test_clang_tidy_command_callback.vader
index f0a07e8c..eb1220be 100644
--- a/test/command_callback/test_clang_tidy_command_callback.vader
+++ b/test/command_callback/test_clang_tidy_command_callback.vader
@@ -68,7 +68,6 @@ Execute(The build directory should be used for header files):
   \ ale#Escape('clang-tidy')
   \   . ' -checks=' . ale#Escape('*') . ' %s'
   \   . ' -p ' . ale#Escape('/foo/bar')
-  \   . ' -- -x c++'
 
   call ale#test#SetFilename('test.hpp')
 
diff --git a/test/command_callback/test_dart_analysis_server_command_callback.vader b/test/command_callback/test_dart_analysis_server_command_callback.vader
new file mode 100644
index 00000000..1754109a
--- /dev/null
+++ b/test/command_callback/test_dart_analysis_server_command_callback.vader
@@ -0,0 +1,15 @@
+Before:
+  call ale#assert#SetUpLinterTest('dart', 'analysis_server')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(The default command should be correct):
+  AssertLinter 'dart', ale#Escape('dart')
+  \   . ' ./snapshots/analysis_server.dart.snapshot --lsp'
+
+Execute(The executable should be configurable):
+  let g:ale_dart_analysis_server_executable = 'foobar'
+
+  AssertLinter 'foobar', ale#Escape('foobar')
+  \   . ' ./snapshots/analysis_server.dart.snapshot --lsp'
diff --git a/test/command_callback/test_elixir_credo.vader b/test/command_callback/test_elixir_credo.vader
index 3eb88846..b14444c6 100644
--- a/test/command_callback/test_elixir_credo.vader
+++ b/test/command_callback/test_elixir_credo.vader
@@ -38,3 +38,10 @@ Execute(Builds credo command with suggest mode when set to 0):
   AssertLinter 'mix',
   \ ale#path#CdString(ale#path#Simplify(g:dir . '/elixir_paths/mix_project'))
   \ . 'mix help credo && mix credo suggest --format=flycheck --read-from-stdin %s'
+
+Execute(Builds credo command with a custom config file):
+  let g:ale_elixir_credo_config_file = '/home/user/custom_credo.exs'
+
+  AssertLinter 'mix',
+  \ ale#path#CdString(ale#path#Simplify(g:dir . '/elixir_paths/mix_project'))
+  \ . 'mix help credo && mix credo suggest --config-file /home/user/custom_credo.exs --format=flycheck --read-from-stdin %s'
diff --git a/test/command_callback/test_erlang_erlc_command_callback.vader b/test/command_callback/test_erlang_erlc_command_callback.vader
new file mode 100644
index 00000000..7d659a07
--- /dev/null
+++ b/test/command_callback/test_erlang_erlc_command_callback.vader
@@ -0,0 +1,40 @@
+Before:
+  call ale#assert#SetUpLinterTest('erlang', 'erlc')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(The default command should be correct.):
+    let g:cmd = ale_linters#erlang#erlc#GetCommand(bufnr(''))
+    let g:regex = 'erlc.\+-o.\+%t'
+    let g:matched = match(g:cmd, g:regex)
+
+    " match returns -1 if not found
+    AssertNotEqual
+    \   g:matched,
+    \   -1,
+    \   'Command error: expected [' . g:cmd . '] to match [' . g:regex . ']'
+
+Execute(The command should accept configured executable.):
+    let b:ale_erlang_erlc_executable = '/usr/bin/erlc'
+    let g:cmd = ale_linters#erlang#erlc#GetCommand(bufnr(''))
+    let g:regex = '/usr/bin/erlc.\+-o.\+%t'
+    let g:matched = match(g:cmd, g:regex)
+
+    " match returns -1 if not found
+    AssertNotEqual
+    \   g:matched,
+    \   -1,
+    \   'Command error: expected [' . g:cmd . '] to match [' . g:regex . ']'
+
+Execute(The command should accept configured options.):
+    let b:ale_erlang_erlc_options = '-I include'
+    let g:cmd = ale_linters#erlang#erlc#GetCommand(bufnr(''))
+    let g:regex = 'erlc.\+-o.\+-I include.\+%t'
+    let g:matched = match(g:cmd, g:regex)
+
+    " match returns -1 if not found
+    AssertNotEqual
+    \   g:matched,
+    \   -1,
+    \   'Command error: expected [' . g:cmd . '] to match [' . g:regex . ']'
diff --git a/test/command_callback/test_fecs_command_callback.vader b/test/command_callback/test_fecs_command_callback.vader
index f70ad084..4287d324 100644
--- a/test/command_callback/test_fecs_command_callback.vader
+++ b/test/command_callback/test_fecs_command_callback.vader
@@ -1,5 +1,6 @@
 Before:
   call ale#assert#SetUpLinterTest('javascript', 'fecs')
+  runtime autoload/ale/handlers/fecs.vim
 
 After:
   call ale#assert#TearDownLinterTest()
diff --git a/test/command_callback/test_ibm_openapi_validator_command_callback.vader b/test/command_callback/test_ibm_openapi_validator_command_callback.vader
new file mode 100644
index 00000000..3484cc09
--- /dev/null
+++ b/test/command_callback/test_ibm_openapi_validator_command_callback.vader
@@ -0,0 +1,15 @@
+Before:
+  call ale#assert#SetUpLinterTest('openapi', 'ibm_validator')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(The yaml ibm-openapi-validator command callback should return the correct default string):
+  AssertLinter 'lint-openapi', ale#Escape('lint-openapi') . ' %t'
+
+Execute(The yaml ibm-openapi-validator command callback should be configurable):
+  let g:ale_openapi_ibm_validator_executable = '~/.local/bin/lint-openapi'
+  let g:ale_openapi_ibm_validator_options = '-c ~/.config'
+
+  AssertLinter '~/.local/bin/lint-openapi', ale#Escape('~/.local/bin/lint-openapi')
+  \ . ' -c ~/.config %t'
diff --git a/test/command_callback/test_inko_inko_callbacks.vader b/test/command_callback/test_inko_inko_callbacks.vader
new file mode 100644
index 00000000..93295c91
--- /dev/null
+++ b/test/command_callback/test_inko_inko_callbacks.vader
@@ -0,0 +1,20 @@
+Before:
+  call ale#assert#SetUpLinterTest('inko', 'inko')
+  call ale#test#SetFilename('inko_paths/test.inko')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(The default executable path should be correct):
+  AssertLinter 'inko', ale#Escape('inko') . ' build --check --format=json %s'
+
+Execute(The inko callback should include tests/ for test paths):
+  call ale#engine#Cleanup(bufnr(''))
+  noautocmd e! inko_paths/tests/test/test_foo.inko
+  call ale#engine#InitBufferInfo(bufnr(''))
+
+  AssertLinter 'inko',
+  \ ale#Escape('inko')
+  \   . ' build --check --format=json --include '
+  \   . ale#Escape(ale#path#Simplify(g:dir . '/inko_paths/tests/'))
+  \   . ' %s'
diff --git a/test/command_callback/test_julia_languageserver_callbacks.vader b/test/command_callback/test_julia_languageserver_callbacks.vader
index 3bc46e3d..96df81f1 100644
--- a/test/command_callback/test_julia_languageserver_callbacks.vader
+++ b/test/command_callback/test_julia_languageserver_callbacks.vader
@@ -11,16 +11,16 @@ After:
 Execute(The default executable path should be correct):
   AssertLinter 'julia',
   \ ale#Escape('julia') .
-  \' --startup-file=no --history-file=no -e ' .
-  \ ale#Escape('using LanguageServer; server = LanguageServer.LanguageServerInstance(isdefined(Base, :stdin) ? stdin : STDIN, isdefined(Base, :stdout) ? stdout : STDOUT, false); server.runlinter = true; run(server);')
+  \' --project=@. --startup-file=no --history-file=no -e ' .
+  \ ale#Escape('using LanguageServer; using Pkg; import StaticLint; import SymbolServer; server = LanguageServer.LanguageServerInstance(isdefined(Base, :stdin) ? stdin : STDIN, isdefined(Base, :stdout) ? stdout : STDOUT, dirname(Pkg.Types.Context().env.project_file)); server.runlinter = true; run(server);')
 
 Execute(The executable should be configurable):
   let g:ale_julia_executable = 'julia-new'
 
   AssertLinter 'julia-new',
   \ ale#Escape('julia-new') .
-  \' --startup-file=no --history-file=no -e ' .
-  \ ale#Escape('using LanguageServer; server = LanguageServer.LanguageServerInstance(isdefined(Base, :stdin) ? stdin : STDIN, isdefined(Base, :stdout) ? stdout : STDOUT, false); server.runlinter = true; run(server);')
+  \' --project=@. --startup-file=no --history-file=no -e ' .
+  \ ale#Escape('using LanguageServer; using Pkg; import StaticLint; import SymbolServer; server = LanguageServer.LanguageServerInstance(isdefined(Base, :stdin) ? stdin : STDIN, isdefined(Base, :stdout) ? stdout : STDOUT, dirname(Pkg.Types.Context().env.project_file)); server.runlinter = true; run(server);')
 
 Execute(The project root should be detected correctly):
   AssertLSPProject ''
diff --git a/test/command_callback/test_rust_analyzer_callbacks.vader b/test/command_callback/test_rust_analyzer_callbacks.vader
index 95866076..efab1378 100644
--- a/test/command_callback/test_rust_analyzer_callbacks.vader
+++ b/test/command_callback/test_rust_analyzer_callbacks.vader
@@ -16,5 +16,5 @@ Execute(The project root should be detected correctly):
 
 Execute(Should accept configuration settings):
   AssertLSPConfig {}
-  let b:ale_rust_analyzer_config = {'rust': {'clippy_preference': 'on'}}
-  AssertLSPConfig {'rust': {'clippy_preference': 'on'}}
+  let b:ale_rust_analyzer_config = {'diagnostics': {'disabled': ['unresolved-import']}}
+  AssertLSPOptions {'diagnostics': {'disabled': ['unresolved-import']}}
diff --git a/test/command_callback/test_sorbet_command_callback.vader b/test/command_callback/test_sorbet_command_callback.vader
index b46e90a4..fe758635 100644
--- a/test/command_callback/test_sorbet_command_callback.vader
+++ b/test/command_callback/test_sorbet_command_callback.vader
@@ -5,6 +5,7 @@ Before:
 
   let g:ale_ruby_sorbet_executable = 'srb'
   let g:ale_ruby_sorbet_options = ''
+  let g:ale_ruby_sorbet_enable_watchman = 0
 
 After:
   call ale#assert#TearDownLinterTest()
@@ -13,6 +14,12 @@ Execute(Executable should default to srb):
   AssertLinter 'srb', ale#Escape('srb')
   \   . ' tc --lsp --disable-watchman'
 
+Execute(Able to enable watchman):
+  let g:ale_ruby_sorbet_enable_watchman = 1
+
+  AssertLinter 'srb', ale#Escape('srb')
+  \   . ' tc --lsp'
+
 Execute(Should be able to set a custom executable):
   let g:ale_ruby_sorbet_executable = 'bin/srb'
 
diff --git a/test/command_callback/test_spectral_command_callback.vader b/test/command_callback/test_spectral_command_callback.vader
new file mode 100644
index 00000000..ed3795b9
--- /dev/null
+++ b/test/command_callback/test_spectral_command_callback.vader
@@ -0,0 +1,31 @@
+Before:
+  call ale#assert#SetUpLinterTest('yaml', 'spectral')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(The yaml spectral command callback should return the correct default string):
+  AssertLinter 'spectral', ale#Escape('spectral') . ' lint --ignore-unknown-format -q -f text %t'
+
+Execute(The yaml spectral command callback should be configurable):
+  let g:ale_yaml_spectral_executable = '~/.local/bin/spectral'
+
+  AssertLinter '~/.local/bin/spectral',
+  \ ale#Escape('~/.local/bin/spectral')
+  \   . ' lint --ignore-unknown-format -q -f text %t'
+
+Execute(The yaml spectral command callback should allow a global installation to be used):
+  let g:ale_yaml_spectral_executable = '/usr/local/bin/spectral'
+  let g:ale_yaml_spectral_use_global = 1
+
+  AssertLinter '/usr/local/bin/spectral',
+  \ ale#Escape('/usr/local/bin/spectral')
+  \   . ' lint --ignore-unknown-format -q -f text %t'
+
+Execute(The yaml spectral command callback should allow a local installation to be used):
+  call ale#test#SetFilename('spectral_paths/openapi.yaml')
+
+  AssertLinter
+  \ ale#path#Simplify(g:dir . '/spectral_paths/node_modules/.bin/spectral'),
+  \ ale#Escape(ale#path#Simplify(g:dir . '/spectral_paths/node_modules/.bin/spectral'))
+  \   . ' lint --ignore-unknown-format -q -f text %t'
diff --git a/test/command_callback/test_typescript_deno_lsp.vader b/test/command_callback/test_typescript_deno_lsp.vader
new file mode 100644
index 00000000..01cbc851
--- /dev/null
+++ b/test/command_callback/test_typescript_deno_lsp.vader
@@ -0,0 +1,60 @@
+Before:
+  let g:ale_deno_unstable = 0
+  let g:ale_deno_executable = 'deno'
+  let g:ale_deno_project_root = ''
+
+  runtime autoload/ale/handlers/deno.vim
+  call ale#assert#SetUpLinterTest('typescript', 'deno')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(Should set deno lsp for TypeScript projects using stable Deno API):
+  AssertLSPLanguage 'typescript'
+  AssertLSPConfig {}
+  AssertLSPProject ale#path#Simplify(g:dir . '/../..')
+  AssertLSPOptions {
+  \   'enable': v:true,
+  \   'lint': v:true,
+  \   'unstable': v:false
+  \}
+
+Execute(Should set deno lsp using unstable Deno API if enabled by user):
+  let g:ale_deno_unstable = 1
+  AssertLSPLanguage 'typescript'
+  AssertLSPConfig {}
+  AssertLSPProject ale#path#Simplify(g:dir . '/../..')
+  AssertLSPOptions {
+  \   'enable': v:true,
+  \   'lint': v:true,
+  \   'unstable': v:true
+  \}
+
+Execute(Should find project root containing tsconfig.json):
+  call ale#test#SetFilename('../typescript/test.ts')
+  AssertLSPLanguage 'typescript'
+  AssertLSPConfig {}
+  AssertLSPProject ale#path#Simplify(g:dir . '/../typescript')
+  AssertLSPOptions {
+  \   'enable': v:true,
+  \   'lint': v:true,
+  \   'unstable': v:false
+  \}
+
+Execute(Should use user-specified project root):
+  let g:ale_deno_lsp_project_root = '/'
+
+  call ale#test#SetFilename('../typescript/test.ts')
+  AssertLSPLanguage 'typescript'
+  AssertLSPConfig {}
+  AssertLSPProject '/'
+  AssertLSPOptions {
+  \   'enable': v:true,
+  \   'lint': v:true,
+  \   'unstable': v:false
+  \}
+
+Execute(Check Deno LSP command):
+  AssertLinter 'deno', [
+  \ ale#Escape('deno') . ' lsp',
+  \]
diff --git a/test/command_callback/test_xo_command_callback.vader b/test/command_callback/test_xo_command_callback.vader
index 65cb4f8a..1aa4c3f1 100644
--- a/test/command_callback/test_xo_command_callback.vader
+++ b/test/command_callback/test_xo_command_callback.vader
@@ -1,8 +1,11 @@
 Before:
-  call ale#assert#SetUpLinterTest('typescript', 'xo')
-  call ale#test#SetFilename('testfile.ts')
+  call ale#assert#SetUpLinterTest('javascript', 'xo')
+  call ale#test#SetFilename('testfile.jsx')
   unlet! b:executable
 
+  set filetype=javascriptreact
+  runtime autoload/ale/handlers/xo.vim
+
 After:
   call ale#assert#TearDownLinterTest()
 
@@ -10,11 +13,11 @@ Execute(The XO executable should be called):
   AssertLinter 'xo', ale#Escape('xo') . ' --reporter json --stdin --stdin-filename %s'
 
 Execute(The XO executable should be configurable):
-  let b:ale_typescript_xo_executable = 'foobar'
+  let b:ale_javascript_xo_executable = 'foobar'
 
   AssertLinter 'foobar', ale#Escape('foobar') . ' --reporter json --stdin --stdin-filename %s'
 
 Execute(The XO options should be configurable):
-  let b:ale_typescript_xo_options = '--wat'
+  let b:ale_javascript_xo_options = '--wat'
 
   AssertLinter 'xo', ale#Escape('xo') . ' --wat --reporter json --stdin --stdin-filename %s'
diff --git a/test/command_callback/test_xots_command_callback.vader b/test/command_callback/test_xots_command_callback.vader
new file mode 100644
index 00000000..cc38ff02
--- /dev/null
+++ b/test/command_callback/test_xots_command_callback.vader
@@ -0,0 +1,23 @@
+Before:
+  call ale#assert#SetUpLinterTest('typescript', 'xo')
+  call ale#test#SetFilename('testfile.tsx')
+  unlet! b:executable
+
+  set filetype=typescriptreact
+  runtime autoload/ale/handlers/xo.vim
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(The XO executable should be called):
+  AssertLinter 'xo', ale#Escape('xo') . ' --reporter json --stdin --stdin-filename %s'
+
+Execute(The XO executable should be configurable):
+  let b:ale_typescript_xo_executable = 'foobar'
+
+  AssertLinter 'foobar', ale#Escape('foobar') . ' --reporter json --stdin --stdin-filename %s'
+
+Execute(The XO options should be configurable):
+  let b:ale_typescript_xo_options = '--wat'
+
+  AssertLinter 'xo', ale#Escape('xo') . ' --wat --reporter json --stdin --stdin-filename %s'
diff --git a/test/eslint-test-files/react-app/node_modules/xo/cli.js b/test/eslint-test-files/react-app/node_modules/xo/cli.js
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/eslint-test-files/react-app/node_modules/xo/cli.js
diff --git a/test/eslint-test-files/react-app/subdir/testfile.ts b/test/eslint-test-files/react-app/subdir/testfile.ts
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/eslint-test-files/react-app/subdir/testfile.ts
diff --git a/test/fixers/test_dhall_fixer_callback.vader b/test/fixers/test_dhall_fixer_callback.vader
deleted file mode 100644
index f27880b7..00000000
--- a/test/fixers/test_dhall_fixer_callback.vader
+++ /dev/null
@@ -1,11 +0,0 @@
-Before:
-  call ale#assert#SetUpFixerTest('dhall', 'dhall')
-
-After:
-  call ale#assert#TearDownFixerTest()
-
-Execute(The default command should be correct):
-  AssertFixer
-  \ { 'read_temporary_file': 1,
-  \   'command': ale#Escape('dhall') . ' format --inplace %t'
-  \ }
diff --git a/test/fixers/test_dhall_format_fixer_callback.vader b/test/fixers/test_dhall_format_fixer_callback.vader
new file mode 100644
index 00000000..9bc17f7e
--- /dev/null
+++ b/test/fixers/test_dhall_format_fixer_callback.vader
@@ -0,0 +1,24 @@
+Before:
+  Save g:ale_dhall_executable
+  Save g:ale_dhall_options
+
+  " Use an invalid global executable, so we don’t match it.
+  let g:ale_dhall_executable = 'odd-dhall'
+  let g:ale_dhall_options = '--ascii'
+
+  call ale#assert#SetUpFixerTest('dhall-format', 'dhall-format')
+
+After:
+  call ale#assert#TearDownFixerTest()
+
+Execute(The dhall-format callback should return the correct options):
+  call ale#test#SetFilename('../dhall_files/testfile.dhall')
+
+  AssertFixer
+  \ {
+  \   'command': ale#Escape('odd-dhall')
+  \     . ' --ascii'
+  \     . ' format'
+  \     . ' --inplace %t',
+  \   'read_temporary_file': 1,
+  \ }
diff --git a/test/fixers/test_dhall_freeze_fixer_callback.vader b/test/fixers/test_dhall_freeze_fixer_callback.vader
new file mode 100644
index 00000000..c8f820bb
--- /dev/null
+++ b/test/fixers/test_dhall_freeze_fixer_callback.vader
@@ -0,0 +1,24 @@
+Before:
+  Save g:ale_dhall_executable
+  Save g:ale_dhall_options
+
+  " Use an invalid global executable, so we don’t match it.
+  let g:ale_dhall_executable = 'odd-dhall'
+  let g:ale_dhall_options = '--ascii'
+  let g:ale_dhall_freeze_options = '--all'
+
+  call ale#assert#SetUpFixerTest('dhall-freeze', 'dhall-freeze')
+
+After:
+  call ale#assert#TearDownFixerTest()
+
+Execute(The dhall-freeze callback should return the correct options):
+  AssertFixer
+  \ {
+  \   'command': ale#Escape('odd-dhall')
+  \     . ' --ascii'
+  \     . ' freeze'
+  \     . ' --all'
+  \     . ' --inplace %t',
+  \   'read_temporary_file': 1,
+  \ }
diff --git a/test/fixers/test_dhall_lint_fixer_callback.vader b/test/fixers/test_dhall_lint_fixer_callback.vader
new file mode 100644
index 00000000..82229363
--- /dev/null
+++ b/test/fixers/test_dhall_lint_fixer_callback.vader
@@ -0,0 +1,22 @@
+Before:
+  Save g:ale_dhall_executable
+  Save g:ale_dhall_options
+
+  " Use an invalid global executable, so we don’t match it.
+  let g:ale_dhall_executable = 'odd-dhall'
+  let g:ale_dhall_options = '--ascii'
+
+  call ale#assert#SetUpFixerTest('dhall-lint', 'dhall-lint')
+
+After:
+  call ale#assert#TearDownFixerTest()
+
+Execute(The dhall-lint callback should return the correct options):
+  AssertFixer
+  \ {
+  \   'command': ale#Escape('odd-dhall')
+  \     . ' --ascii'
+  \     . ' lint'
+  \     . ' --inplace %t',
+  \   'read_temporary_file': 1,
+  \ }
diff --git a/test/fixers/test_isort_fixer_callback.vader b/test/fixers/test_isort_fixer_callback.vader
index 7f389dcf..3941f6dd 100644
--- a/test/fixers/test_isort_fixer_callback.vader
+++ b/test/fixers/test_isort_fixer_callback.vader
@@ -5,6 +5,7 @@ Before:
   " Use an invalid global executable, so we don't match it.
   let g:ale_python_isort_executable = 'xxxinvalid'
   let g:ale_python_isort_options = ''
+  let g:ale_python_isort_auto_pipenv = 0
 
   call ale#test#SetDirectory('/testplugin/test/fixers')
   silent cd ..
@@ -48,3 +49,12 @@ Execute(The isort callback should respect custom options):
   \     . ' --multi-line=3 --trailing-comma -',
   \ },
   \ ale#fixers#isort#Fix(bufnr(''))
+
+Execute(Pipenv is detected when python_isort_auto_pipenv is set):
+  let g:ale_python_isort_auto_pipenv = 1
+
+  call ale#test#SetFilename('/testplugin/test/python_fixtures/pipenv/whatever.py')
+
+  AssertEqual
+  \ {'command': ale#path#BufferCdString(bufnr('')) . ale#Escape('pipenv') . ' run isort -'},
+  \ ale#fixers#isort#Fix(bufnr(''))
diff --git a/test/fixers/test_standardrb_fixer_callback.vader b/test/fixers/test_standardrb_fixer_callback.vader
index 99234b79..d315651f 100644
--- a/test/fixers/test_standardrb_fixer_callback.vader
+++ b/test/fixers/test_standardrb_fixer_callback.vader
@@ -21,9 +21,9 @@ Execute(The standardrb callback should return the correct default values):
 
   AssertEqual
   \ {
-  \   'read_temporary_file': 1,
+  \   'process_with': 'ale#fixers#rubocop#PostProcess',
   \   'command': ale#Escape(g:ale_ruby_standardrb_executable)
-  \     . ' --fix --force-exclusion %t',
+  \     . ' --fix --force-exclusion --stdin %s',
   \ },
   \ ale#fixers#standardrb#Fix(bufnr(''))
 
@@ -32,10 +32,10 @@ Execute(The standardrb callback should include configuration files):
 
   AssertEqual
   \ {
-  \   'read_temporary_file': 1,
+  \   'process_with': 'ale#fixers#rubocop#PostProcess',
   \   'command': ale#Escape(g:ale_ruby_standardrb_executable)
   \     . ' --config ' . ale#Escape(ale#path#Simplify(g:dir . '/ruby_paths/with_config/.standard.yml'))
-  \     . ' --fix --force-exclusion %t',
+  \     . ' --fix --force-exclusion --stdin %s',
   \ },
   \ ale#fixers#standardrb#Fix(bufnr(''))
 
@@ -45,10 +45,10 @@ Execute(The standardrb callback should include custom rubocop options):
 
   AssertEqual
   \ {
-  \   'read_temporary_file': 1,
+  \   'process_with': 'ale#fixers#rubocop#PostProcess',
   \   'command': ale#Escape(g:ale_ruby_standardrb_executable)
   \     . ' --config ' . ale#Escape(ale#path#Simplify(g:dir . '/ruby_paths/with_config/.standard.yml'))
   \     . ' --except Lint/Debugger'
-  \     . ' --fix --force-exclusion %t',
+  \     . ' --fix --force-exclusion --stdin %s',
   \ },
   \ ale#fixers#standardrb#Fix(bufnr(''))
diff --git a/test/fixers/test_xo_fixer_callback.vader b/test/fixers/test_xo_fixer_callback.vader
new file mode 100644
index 00000000..a473606e
--- /dev/null
+++ b/test/fixers/test_xo_fixer_callback.vader
@@ -0,0 +1,45 @@
+Before:
+  call ale#assert#SetUpFixerTest('javascript', 'xo')
+  runtime autoload/ale/handlers/xo.vim
+  set filetype=javascript
+
+After:
+  call ale#assert#TearDownFixerTest()
+
+Execute(The xo callback should return the correct default values):
+  call ale#test#SetFilename('../xo-test-files/monorepo/packages/a/index.js')
+
+  AssertFixer
+  \ {
+  \   'read_temporary_file': 1,
+  \   'command': (has('win32') ? 'node.exe ' : '')
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/../xo-test-files/monorepo/node_modules/xo/cli.js'))
+  \     . ' --fix %t',
+  \ }
+
+Execute(The xo callback should include custom xo options):
+  let g:ale_javascript_xo_options = '--space'
+  call ale#test#SetFilename('../xo-test-files/monorepo/packages/a/index.js')
+
+  AssertFixer
+  \ {
+  \   'read_temporary_file': 1,
+  \   'command': (has('win32') ? 'node.exe ' : '')
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/../xo-test-files/monorepo/node_modules/xo/cli.js'))
+  \     . ' --fix %t'
+  \     . ' --space',
+  \ }
+
+Execute(--stdin should be used when xo is new enough):
+  let g:ale_javascript_xo_options = '--space'
+  call ale#test#SetFilename('../xo-test-files/monorepo/packages/a/index.js')
+
+  GivenCommandOutput ['0.30.0']
+  AssertFixer
+  \ {
+  \   'command': (has('win32') ? 'node.exe ' : '')
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/../xo-test-files/monorepo/node_modules/xo/cli.js'))
+  \     . ' --stdin --stdin-filename %s'
+  \     . ' --fix'
+  \     . ' --space',
+  \ }
diff --git a/test/fixers/test_xots_fixer_callback.vader b/test/fixers/test_xots_fixer_callback.vader
new file mode 100644
index 00000000..5c7fa1d1
--- /dev/null
+++ b/test/fixers/test_xots_fixer_callback.vader
@@ -0,0 +1,45 @@
+Before:
+  call ale#assert#SetUpFixerTest('typescript', 'xo')
+  runtime autoload/ale/handlers/xo.vim
+  set filetype=typescript
+
+After:
+  call ale#assert#TearDownFixerTest()
+
+Execute(The xo callback should return the correct default values):
+  call ale#test#SetFilename('../xo-test-files/monorepo/packages/a/index.ts')
+
+  AssertFixer
+  \ {
+  \   'read_temporary_file': 1,
+  \   'command': (has('win32') ? 'node.exe ' : '')
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/../xo-test-files/monorepo/node_modules/xo/cli.js'))
+  \     . ' --fix %t',
+  \ }
+
+Execute(The xo callback should include custom xo options):
+  let g:ale_typescript_xo_options = '--space'
+  call ale#test#SetFilename('../xo-test-files/monorepo/packages/a/index.ts')
+
+  AssertFixer
+  \ {
+  \   'read_temporary_file': 1,
+  \   'command': (has('win32') ? 'node.exe ' : '')
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/../xo-test-files/monorepo/node_modules/xo/cli.js'))
+  \     . ' --fix %t'
+  \     . ' --space',
+  \ }
+
+Execute(--stdin should be used when xo is new enough):
+  let g:ale_typescript_xo_options = '--space'
+  call ale#test#SetFilename('../xo-test-files/monorepo/packages/a/index.ts')
+
+  GivenCommandOutput ['0.30.0']
+  AssertFixer
+  \ {
+  \   'command': (has('win32') ? 'node.exe ' : '')
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/../xo-test-files/monorepo/node_modules/xo/cli.js'))
+  \     . ' --stdin --stdin-filename %s'
+  \     . ' --fix'
+  \     . ' --space',
+  \ }
diff --git a/test/handler/test_atools_handler.vader b/test/handler/test_atools_handler.vader
new file mode 100644
index 00000000..1bb9ca00
--- /dev/null
+++ b/test/handler/test_atools_handler.vader
@@ -0,0 +1,85 @@
+Before:
+  runtime autoload/ale/handlers/atools.vim
+
+After:
+  call ale#linter#Reset()
+
+Execute(The atools handler should handle basic errors or warings):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 2,
+  \     'text': 'trailing whitespace',
+  \     'type': 'E',
+  \     'code': 'AL8',
+  \   },
+  \   {
+  \     'lnum': 15,
+  \     'text': '$pkgname should not be used in the source url',
+  \     'type': 'W',
+  \     'code': 'AL29',
+  \   },
+  \ ],
+  \ ale#handlers#atools#Handle(bufnr(''), [
+  \   'IC:[AL8]:APKBUILD:2:trailing whitespace',
+  \   'MC:[AL29]:APKBUILD:15:$pkgname should not be used in the source url',
+  \ ])
+
+" Regardless of the severity, if the certainty is [P]ossible and not [C]ertain
+" or if regardless of the Certainity the Severity is not [I]mportant or [S]erious
+" then it must be a [W]arning
+Execute(If we are not Certain or Importantly Serious, be a Warning):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 3,
+  \     'text': 'This violation is Serious but Possible false positive, I am a Warning!',
+  \     'type': 'W',
+  \     'code': 'AL',
+  \   },
+  \   {
+  \     'lnum': 4,
+  \     'text': 'This violation is Important but Possible false positive, I am a Warning!',
+  \     'type': 'W',
+  \     'code': 'AL',
+  \   },
+  \   {
+  \     'lnum': 5,
+  \     'text': 'This violation is Minor, I am a Warning!',
+  \     'type': 'W',
+  \     'code': 'AL',
+  \   },
+  \   {
+  \     'lnum': 6,
+  \     'text': 'This violation is Style, I am a Warning!',
+  \     'type': 'W',
+  \     'code': 'AL',
+  \   },
+  \ ],
+  \ ale#handlers#atools#Handle(bufnr(''), [
+  \   'SP:[AL]:APKBUILD:3:This violation is Serious but Possible false positive, I am a Warning!',
+  \   'IP:[AL]:APKBUILD:4:This violation is Important but Possible false positive, I am a Warning!',
+  \   'MC:[AL]:APKBUILD:5:This violation is Minor, I am a Warning!',
+  \   'TC:[AL]:APKBUILD:6:This violation is Style, I am a Warning!',
+  \ ])
+
+Execute(We should be error if we are Certain it is Serious or Important):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 7,
+  \     'text': 'This is Certainly Serious, I am an Error!',
+  \     'type': 'E',
+  \     'code': 'AL',
+  \   },
+  \   {
+  \     'lnum': 8,
+  \     'text': 'This is Certainly Important, I am an Error!',
+  \     'type': 'E',
+  \     'code': 'AL',
+  \   },
+  \ ],
+  \ ale#handlers#atools#Handle(bufnr(''), [
+  \    'SC:[AL]:APKBUILD:7:This is Certainly Serious, I am an Error!',
+  \    'IC:[AL]:APKBUILD:8:This is Certainly Important, I am an Error!',
+  \ ])
diff --git a/test/handler/test_dafny_handler.vader b/test/handler/test_dafny_handler.vader
index 674f691d..472615ac 100644
--- a/test/handler/test_dafny_handler.vader
+++ b/test/handler/test_dafny_handler.vader
@@ -8,21 +8,29 @@ Execute(The Dafny handler should parse output correctly):
   AssertEqual
   \ [
   \   {
-  \     'bufnr': 0,
+  \     'filename': 'File.dfy',
   \     'col': 45,
   \     'lnum': 123,
   \     'text': 'A precondition for this call might not hold.',
   \     'type': 'E'
   \   },
   \   {
-  \     'bufnr': 0,
+  \     'filename': 'File.dfy',
   \     'col': 90,
   \     'lnum': 678,
   \     'text': 'This is the precondition that might not hold.',
   \     'type': 'W'
-  \   }
+  \   },
+  \   {
+  \     'bufnr': 0,
+  \     'col': 45,
+  \     'lnum': 123,
+  \     'text': "Verification of 'Impl$$_22_Proof.__default.PutKeepsMapsFull' timed out after 2 seconds",
+  \     'type': 'E'
+  \   },
   \ ],
   \ ale_linters#dafny#dafny#Handle(0, [
   \ 'File.dfy(123,45): Error BP5002: A precondition for this call might not hold.',
-  \ 'File.dfy(678,90): Related location: This is the precondition that might not hold.'
+  \ 'File.dfy(678,90): Related location: This is the precondition that might not hold.',
+  \ "File.dfy(123,45): Verification of 'Impl$$_22_Proof.__default.PutKeepsMapsFull' timed out after 2 seconds",
   \ ])
diff --git a/test/handler/test_ibm_openapi_validator_handler.vader b/test/handler/test_ibm_openapi_validator_handler.vader
new file mode 100644
index 00000000..e136d5d2
--- /dev/null
+++ b/test/handler/test_ibm_openapi_validator_handler.vader
@@ -0,0 +1,49 @@
+Before:
+  runtime! ale_linters/openapi/ibm_validator.vim
+
+After:
+  call ale#linter#Reset()
+
+Execute(Problems should be parsed correctly for openapi-ibm-validator):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 54,
+  \     'col': 0,
+  \     'type': 'E',
+  \     'text': 'Items with a description must have content in it.',
+  \   },
+  \   {
+  \     'lnum': 24,
+  \     'col': 0,
+  \     'type': 'W',
+  \     'text': 'Operations must have a non-empty `operationId`.',
+  \   },
+  \   {
+  \     'lnum': 40,
+  \     'col': 0,
+  \     'type': 'W',
+  \     'text': 'operationIds must follow case convention: lower_snake_case',
+  \   },
+  \ ],
+  \ ale_linters#openapi#ibm_validator#Handle(bufnr(''), [
+  \   '',
+  \   '[Warning] No .validaterc file found. The validator will run in default mode.',
+  \   'To configure the validator, create a .validaterc file.',
+  \   '',
+  \   'errors',
+  \   '',
+  \   '  Message :   Items with a description must have content in it.',
+  \   '  Path    :   paths./settings.patch.description',
+  \   '  Line    :   54',
+  \   '',
+  \   'warnings',
+  \   '',
+  \   '  Message :   Operations must have a non-empty `operationId`.',
+  \   '  Path    :   paths./stats.get.operationId',
+  \   '  Line    :   24',
+  \   '',
+  \   '  Message :   operationIds must follow case convention: lower_snake_case',
+  \   '  Path    :   paths./settings.get.operationId',
+  \   '  Line    :   40'
+  \ ])
diff --git a/test/handler/test_inko_handler.vader b/test/handler/test_inko_handler.vader
new file mode 100644
index 00000000..6621d2d6
--- /dev/null
+++ b/test/handler/test_inko_handler.vader
@@ -0,0 +1,54 @@
+Before:
+  runtime ale_linters/inko/inko.vim
+
+After:
+  call ale#linter#Reset()
+
+Execute(The inko handler should parse errors correctly):
+  AssertEqual
+  \ [
+  \   {
+  \     'filename': ale#path#Simplify('/tmp/foo.inko'),
+  \     'lnum': 4,
+  \     'col': 5,
+  \     'text': 'this is an error',
+  \     'type': 'E',
+  \   }
+  \ ],
+  \ ale#handlers#inko#Handle(bufnr(''), [
+  \ '[',
+  \ '  {',
+  \ '    "file": "/tmp/foo.inko",',
+  \ '    "line": 4,',
+  \ '    "column": 5,',
+  \ '    "message": "this is an error",',
+  \ '    "level": "error"',
+  \ '  }',
+  \ ']'
+  \ ])
+
+Execute(The inko handler should parse warnings correctly):
+  AssertEqual
+  \ [
+  \   {
+  \     'filename': ale#path#Simplify('/tmp/foo.inko'),
+  \     'lnum': 4,
+  \     'col': 5,
+  \     'text': 'this is a warning',
+  \     'type': 'W',
+  \   }
+  \ ],
+  \ ale#handlers#inko#Handle(bufnr(''), [
+  \ '[',
+  \ '  {',
+  \ '    "file": "/tmp/foo.inko",',
+  \ '    "line": 4,',
+  \ '    "column": 5,',
+  \ '    "message": "this is a warning",',
+  \ '    "level": "warning"',
+  \ '  }',
+  \ ']'
+  \ ])
+
+Execute(The inko handler should handle empty output):
+  AssertEqual [], ale#handlers#inko#Handle(bufnr(''), [])
diff --git a/test/handler/test_salt_salt_lint.vader b/test/handler/test_salt_salt_lint.vader
new file mode 100644
index 00000000..7e234785
--- /dev/null
+++ b/test/handler/test_salt_salt_lint.vader
@@ -0,0 +1,34 @@
+Before:
+  runtime ale_linters/salt/salt_lint.vim
+
+After:
+  call ale#linter#Reset()
+
+Execute(The salt handler should parse lines correctly and show error in severity HIGH):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 5,
+  \     'code': 207,
+  \     'text': 'File modes should always be encapsulated in quotation marks',
+  \     'type': 'E'
+  \   }
+  \ ],
+  \ ale_linters#salt#salt_lint#Handle(255, [
+  \ '[{"id": "207", "message": "File modes should always be encapsulated in quotation marks", "filename": "test.sls", "linenumber": 5, "line": "    - mode: 0755", "severity": "HIGH"}]'
+  \ ])
+
+
+Execute(The salt handler should parse lines correctly and show error in severity not HIGH):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 27,
+  \     'code': 204,
+  \     'text': 'Lines should be no longer that 160 chars',
+  \     'type': 'W'
+  \   }
+  \ ],
+  \ ale_linters#salt#salt_lint#Handle(255, [
+  \ '[{"id": "204", "message": "Lines should be no longer that 160 chars", "filename": "test2.sls", "linenumber": 27, "line": "this line is definitely longer than 160 chars, this line is definitely longer than 160 chars, this line is definitely longer than 160 chars", "severity": "VERY_LOW"}]'
+  \ ])
diff --git a/test/handler/test_spectral_handler.vader b/test/handler/test_spectral_handler.vader
new file mode 100644
index 00000000..89a3ff1b
--- /dev/null
+++ b/test/handler/test_spectral_handler.vader
@@ -0,0 +1,52 @@
+Before:
+  runtime ale_linters/yaml/spectral.vim
+
+After:
+  call ale#linter#Reset()
+
+Execute(spectral handler should parse lines correctly):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 1,
+  \     'col': 1,
+  \     'code': 'oas3-api-servers',
+  \     'text': 'OpenAPI `servers` must be present and non-empty array.',
+  \     'type': 'W'
+  \   },
+  \   {
+  \     'lnum': 1,
+  \     'col': 1,
+  \     'code': 'oas3-schema',
+  \     'text': 'Object should have required property `paths`.',
+  \     'type': 'E'
+  \   },
+  \   {
+  \     'lnum': 1,
+  \     'col': 1,
+  \     'code': 'openapi-tags',
+  \     'text': 'OpenAPI object should have non-empty `tags` array.',
+  \     'type': 'W'
+  \   },
+  \   {
+  \     'lnum': 3,
+  \     'col': 6,
+  \     'code': 'info-contact',
+  \     'text': 'Info object should contain `contact` object.',
+  \     'type': 'W'
+  \   },
+  \   {
+  \     'lnum': 3,
+  \     'col': 6,
+  \     'code': 'oas3-schema',
+  \     'text': '`info` property should have required property `version`.',
+  \     'type': 'E'
+  \   },
+  \ ],
+  \ ale#handlers#spectral#HandleSpectralOutput(bufnr(''), [
+  \   'openapi.yml:1:1 warning oas3-api-servers "OpenAPI `servers` must be present and non-empty array."',
+  \   'openapi.yml:1:1 error oas3-schema "Object should have required property `paths`."',
+  \   'openapi.yml:1:1 warning openapi-tags "OpenAPI object should have non-empty `tags` array."',
+  \   'openapi.yml:3:6 warning info-contact "Info object should contain `contact` object."',
+  \   'openapi.yml:3:6 error oas3-schema "`info` property should have required property `version`."',
+  \ ])
diff --git a/test/handler/test_vala_lint_handler.vader b/test/handler/test_vala_lint_handler.vader
new file mode 100644
index 00000000..b8a4fbfa
--- /dev/null
+++ b/test/handler/test_vala_lint_handler.vader
@@ -0,0 +1,54 @@
+Before:
+  runtime ale_linters/vala/vala_lint.vim
+
+After:
+  call ale#linter#Reset()
+
+Execute(The Vala-Lint handler should parse lines correctly):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 18,
+  \     'col': 18,
+  \     'text': 'Expected space before paren',
+  \     'code': 'space-before-paren',
+  \     'type': 'E',
+  \   },
+  \   {
+  \     'lnum': 64,
+  \     'col': 37,
+  \     'text': 'Expected space before paren',
+  \     'code': 'space-before-paren',
+  \     'type': 'W',
+  \   },
+  \   {
+  \     'lnum': 73,
+  \     'col': 37,
+  \     'text': 'Expected space before paren',
+  \     'code': 'space-before-paren',
+  \     'type': 'E',
+  \   },
+  \ ],
+  \ ale_linters#vala#vala_lint#Handle(bufnr(''), [
+  \   'Application.vala',
+  \   '   18.18    error   Expected space before paren                     space-before-paren',
+  \   '   64.37    warn    Expected space before paren                     space-before-paren',
+  \   '   73.37    error   Expected space before paren                     space-before-paren',
+  \ ])
+
+Execute(The Vala-Lint handler should ignore unknown error types):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 73,
+  \     'col': 37,
+  \     'text': 'Expected space before paren',
+  \     'code': 'space-before-paren',
+  \     'type': 'E',
+  \   },
+  \ ],
+  \ ale_linters#vala#vala_lint#Handle(bufnr(''), [
+  \   'Application.vala',
+  \   '   18.18    test    Expected space before paren                     space-before-paren',
+  \   '   73.37    error   Expected space before paren                     space-before-paren',
+  \ ])
diff --git a/test/handler/test_yamllint_handler.vader b/test/handler/test_yamllint_handler.vader
index 1aa0b9f5..dd51119c 100644
--- a/test/handler/test_yamllint_handler.vader
+++ b/test/handler/test_yamllint_handler.vader
@@ -3,7 +3,7 @@ Before:
 
   let g:ale_warn_about_trailing_whitespace = 1
 
-  runtime! ale_linters/yaml/yamllint.vim
+  runtime! ale/handlers/yamllint.vim
 
 After:
   Restore
@@ -29,7 +29,7 @@ Execute(Problems should be parsed correctly for yamllint):
   \     'text': 'syntax error: expected the node content, but found ''<stream end>''',
   \   },
   \ ],
-  \ ale_linters#yaml#yamllint#Handle(bufnr(''), [
+  \ ale#handlers#yamllint#Handle(bufnr(''), [
   \   'something.yaml:1:1: [warning] missing document start "---" (document-start)',
   \   'something.yml:2:1: [error] syntax error: expected the node content, but found ''<stream end>''',
   \ ])
@@ -45,7 +45,7 @@ Execute(The yamllint handler should respect ale_warn_about_trailing_whitespace):
   \     'code': 'trailing-spaces',
   \   },
   \ ],
-  \ ale_linters#yaml#yamllint#Handle(bufnr(''), [
+  \ ale#handlers#yamllint#Handle(bufnr(''), [
   \   'something.yml:5:18: [error] trailing spaces (trailing-spaces)',
   \ ])
 
@@ -54,6 +54,6 @@ Execute(The yamllint handler should respect ale_warn_about_trailing_whitespace):
   AssertEqual
   \ [
   \ ],
-  \ ale_linters#yaml#yamllint#Handle(bufnr(''), [
+  \ ale#handlers#yamllint#Handle(bufnr(''), [
   \   'something.yml:5:18: [error] trailing spaces (trailing-spaces)',
   \ ])
diff --git a/test/nix/test.nix b/test/nix/test.nix
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/nix/test.nix
diff --git a/test/nix/test_rnix_lsp.vader b/test/nix/test_rnix_lsp.vader
new file mode 100644
index 00000000..bf62616b
--- /dev/null
+++ b/test/nix/test_rnix_lsp.vader
@@ -0,0 +1,14 @@
+" Author: jD91mZM2 <me@krake.one>
+" Description: Tests for rnix-lsp language client
+
+Before:
+  call ale#assert#SetUpLinterTest('nix', 'rnix_lsp')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(should start rnix-lsp):
+  call ale#test#SetFilename('./test.nix')
+  AssertLSPLanguage 'nix'
+  AssertLSPOptions {}
+  AssertLSPProject ale#path#Simplify('.')
diff --git a/test/script/check-duplicate-tags b/test/script/check-duplicate-tags
new file mode 100755
index 00000000..ec1de788
--- /dev/null
+++ b/test/script/check-duplicate-tags
@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+set -e
+
+grep --exclude=tags -roh '\*.*\*$' doc | sort | uniq -d
diff --git a/test/script/check-supported-tools-tables b/test/script/check-supported-tools-tables
index f4305707..d238e77f 100755
--- a/test/script/check-supported-tools-tables
+++ b/test/script/check-supported-tools-tables
@@ -15,14 +15,13 @@ while read -r; do
     if [[ "$REPLY" =~ ^! ]]; then
         language="${REPLY/!/}"
     else
-        # shellcheck disable=SC2001
         echo "$language - $REPLY"
     fi
 done < <(
     grep '^\*\|^  *\*' doc/ale-supported-languages-and-tools.txt \
     | sed -e '1,2d' \
     | sed 's/^\* */!/' \
-    | sed 's/^ *\* *\|!!\|\^\|(.*)\|`//g' \
+    | sed -E 's/^ *\* *|!!|\^|\(.*\)|`//g' \
     | sed 's/ *$//'
 ) > "$doc_file"
 
@@ -30,13 +29,12 @@ while read -r; do
     if [[ "$REPLY" =~ ^! ]]; then
         language="${REPLY/!/}"
     else
-        # shellcheck disable=SC2001
         echo "$language - $REPLY"
     fi
 done < <(
     grep '^\*\|^  *\*' supported-tools.md \
     | sed 's/^\* */!/' \
-    | sed 's/^ *\* *\|:floppy_disk:\|:warning:\|(.*)\|\[\|\].*\|-n flag//g' \
+    | sed -E 's/^ *\* *|:floppy_disk:|:warning:|\(.*\)|\[|\].*|-n flag//g' \
     | sed 's/ *$//'
 ) > "$readme_file"
 
diff --git a/test/script/check-tag-alignment b/test/script/check-tag-alignment
new file mode 100755
index 00000000..d41db160
--- /dev/null
+++ b/test/script/check-tag-alignment
@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+exit_code=0
+
+# Documentation tags need to be aligned to the right margin, so look for
+# tags which aren't at the right margin.
+grep ' \*[^*]\+\*$' doc/ -r \
+    | awk '{ sep = index($0, ":"); if (length(substr($0, sep + 1 )) < 79) { print } }' \
+    | grep . && exit_code=1
+
+exit $exit_code
diff --git a/test/script/check-tag-references b/test/script/check-tag-references
new file mode 100755
index 00000000..45e741fb
--- /dev/null
+++ b/test/script/check-tag-references
@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+set -e
+
+exit_code=0
+tag_regex='[gb]\?:\?\(ale\|ALE\)[a-zA-Z_\-]\+'
+
+tags="$(mktemp -t tags.XXXXXXXX)"
+refs="$(mktemp -t refs.XXXXXXXX)"
+# Grep for tags and references, and complain if we find a reference without
+# a tag for the reference. Only our tags will be included.
+grep --exclude=tags -roh "\\*$tag_regex\\*" doc | sed 's/*//g' | sort -u > "$tags"
+grep --exclude=tags -roh "|$tag_regex|" doc | sed 's/|//g' | sort -u > "$refs"
+
+exit_code=0
+
+if ! [[ $(comm -23 $refs $tags | wc -l) -eq 0 ]]; then
+  exit_code=1
+fi
+
+rm "$tags"
+rm "$refs"
diff --git a/test/script/check-toc b/test/script/check-toc
index 87a61262..f3f8a9ea 100755
--- a/test/script/check-toc
+++ b/test/script/check-toc
@@ -35,7 +35,7 @@ sed -n "$toc_start_line,$toc_end_line"p doc/ale.txt \
     > "$toc_file"
 
 # Get all of the doc files in a natural sorted order.
-doc_files="$(/usr/bin/env ls -1v doc | grep ^ale- | sed 's/^/doc\//' | paste -sd ' ' -)"
+doc_files="$(/usr/bin/env ls -1v doc | grep '^ale-' | sed 's/^/doc\//' | paste -sd ' ' -)"
 
 # shellcheck disable=SC2086
 grep -h '\*ale-.*-options\|^[a-z].*\*ale-.*\*$' $doc_files \
diff --git a/test/script/custom-checks b/test/script/custom-checks
index ca9069e4..83afb28c 100755
--- a/test/script/custom-checks
+++ b/test/script/custom-checks
@@ -13,7 +13,7 @@ echo 'Custom warnings/errors follow:'
 echo
 
 set -o pipefail
-docker run -a stdout "${docker_flags[@]}" test/script/custom-linting-rules . || exit_code=$?
+docker run "${docker_flags[@]}" test/script/custom-linting-rules . || exit_code=$?
 set +o pipefail
 echo
 
@@ -23,7 +23,10 @@ echo '========================================'
 echo 'Duplicate tags follow:'
 echo
 
-grep --exclude=tags -roh '\*.*\*$' doc | sort | uniq -d || exit_code=$?
+set -o pipefail
+docker run "${docker_flags[@]}" test/script/check-duplicate-tags . || exit_code=$?
+set +o pipefail
+echo
 
 echo '========================================'
 echo 'Checking for invalid tag references'
@@ -31,14 +34,9 @@ echo '========================================'
 echo 'Invalid tag references tags follow:'
 echo
 
-tag_regex='[gb]\?:\?\(ale\|ALE\)[a-zA-Z_\-]\+'
-
-# Grep for tags and references, and complain if we find a reference without
-# a tag for the reference. Only our tags will be included.
-diff -u \
-    <(grep --exclude=tags -roh "\\*$tag_regex\\*" doc | sort -u | sed 's/*//g') \
-    <(grep --exclude=tags -roh "|$tag_regex|" doc | sort -u | sed 's/|//g') \
-    | grep '^+[^+]' && exit_code=1
+set -o pipefail
+docker run "${docker_flags[@]}" test/script/check-tag-references || exit_code=$?
+set +o pipefail
 
 echo '========================================'
 echo 'diff supported-tools.md and doc/ale-supported-languages-and-tools.txt tables'
@@ -46,7 +44,9 @@ echo '========================================'
 echo 'Differences follow:'
 echo
 
-test/script/check-supported-tools-tables || exit_code=$?
+set -o pipefail
+docker run "${docker_flags[@]}" test/script/check-supported-tools-tables || exit_code=$?
+set +o pipefail
 
 echo '========================================'
 echo 'Look for badly aligned doc tags'
@@ -54,18 +54,18 @@ echo '========================================'
 echo 'Badly aligned tags follow:'
 echo
 
-# Documentation tags need to be aligned to the right margin, so look for
-# tags which aren't at the right margin.
-grep ' \*[^*]\+\*$' doc/ -r \
-    | awk '{ sep = index($0, ":"); if (length(substr($0, sep + 1 )) < 79) { print } }' \
-    | grep . && exit_code=1
+set -o pipefail
+docker run "${docker_flags[@]}" test/script/check-tag-alignment || exit_code=$?
+set +o pipefail
 
 echo '========================================'
 echo 'Look for table of contents issues'
 echo '========================================'
 echo
 
-test/script/check-toc || exit_code=$?
+set -o pipefail
+docker run "${docker_flags[@]}" test/script/check-toc || exit_code=$?
+set +o pipefail
 
 echo '========================================'
 echo 'Check Python code'
diff --git a/test/script/custom-linting-rules b/test/script/custom-linting-rules
index 981a9459..86294f71 100755
--- a/test/script/custom-linting-rules
+++ b/test/script/custom-linting-rules
@@ -53,17 +53,29 @@ check_errors() {
     regex="$1"
     message="$2"
     include_arg=''
+    exclude_arg=''
 
     if [ $# -gt 2 ]; then
         include_arg="--include $3"
     fi
 
+    if [ $# -gt 3 ]; then
+        shift
+        shift
+        shift
+
+        while (( "$#" )); do
+          exclude_arg="$exclude_arg --exclude $1"
+          shift
+        done
+    fi
+
     for directory in "${directories[@]}"; do
         # shellcheck disable=SC2086
         while read -r; do
             RETURN_CODE=1
             echo "$REPLY $message"
-        done < <(grep -H -n "$regex" $include_arg "$directory"/**/*.vim \
+        done < <(grep -H -n "$regex" $include_arg $exclude_arg "$directory"/**/*.vim \
             | grep -v 'no-custom-checks' \
             | grep -o '^[^:]\+:[0-9]\+' \
             | sed 's:^\./::')
@@ -92,7 +104,7 @@ if (( FIX_ERRORS )); then
     done
 fi
 
-# The arguments are: regex, explanation, [filename_filter]
+# The arguments are: regex, explanation, [filename_filter], [list, of, exclusions]
 check_errors \
     '^function.*) *$' \
     'Function without abort keyword (See :help except-compat)'
@@ -114,7 +126,10 @@ check_errors '==?' "Use 'is?' instead of '==?'. 0 ==? 'foobar' is true"
 check_errors '!=#' "Use 'isnot#' instead of '!=#'. 0 !=# 'foobar' is false"
 check_errors '!=?' "Use 'isnot?' instead of '!=?'. 0 !=? 'foobar' is false"
 check_errors '^ *:\?echo' "Stray echo line. Use \`execute echo\` if you want to echo something"
-check_errors $'name.:.*\'[a-z_]*[^a-z_0-9][a-z_0-9]*\',$' 'Use snake_case names for linters' '*/ale_linters/*'
+# Exclusions for grandfathered-in exceptions
+exclusions="clojure/clj_kondo.vim elixir/elixir_ls.vim go/golangci_lint.vim swift/swiftformat.vim"
+# shellcheck disable=SC2086
+check_errors $'name.:.*\'[a-z_]*[^a-z_0-9][a-z_0-9]*\',$' 'Use snake_case names for linters' '*/ale_linters/*' $exclusions
 # Checks for improving type checks.
 check_errors $'\\(==.\\?\\|is\\) type([\'"]\+)' "Use 'is v:t_string' instead"
 check_errors '\(==.\?\|is\) type([0-9]\+)' "Use 'is v:t_number' instead"
diff --git a/test/test_c_flag_parsing.vader b/test/test_c_flag_parsing.vader
index 99722b17..8b02f2b9 100644
--- a/test/test_c_flag_parsing.vader
+++ b/test/test_c_flag_parsing.vader
@@ -482,6 +482,7 @@ Execute(We should include several important flags):
   \ . ' -idirafter ' . ale#Escape(ale#path#Simplify(g:dir. '/test_c_projects/makefile_project/incafter'))
   \ . ' -iframework ' . ale#Escape(ale#path#Simplify(g:dir . '/test_c_projects/makefile_project/incframework'))
   \ . ' -include ' . ale#Escape(ale#path#Simplify(g:dir . '/test_c_projects/makefile_project/foo bar'))
+  \ . ' -imacros ' . ale#Escape(ale#path#Simplify(g:dir . '/test_c_projects/makefile_project/incmacros'))
   \ . ' -Dmacro="value"'
   \ . ' -DGoal=9'
   \ . ' -D macro2'
@@ -511,6 +512,8 @@ Execute(We should include several important flags):
   \     'incframework',
   \     '-include',
   \     '''foo bar''',
+  \     '-imacros',
+  \     'incmacros',
   \     '-Dmacro="value"',
   \     '-DGoal=9',
   \     '-D',
@@ -559,6 +562,7 @@ Execute(We should quote the flags we need to quote):
   \ . ' -idirafter ' . ale#Escape(ale#path#Simplify(g:dir. '/test_c_projects/makefile_project/incafter'))
   \ . ' -iframework ' . ale#Escape(ale#path#Simplify(g:dir . '/test_c_projects/makefile_project/incframework'))
   \ . ' -include ' . ale#Escape(ale#path#Simplify(g:dir . '/test_c_projects/makefile_project/foo bar'))
+  \ . ' -imacros ' . ale#Escape(ale#path#Simplify(g:dir . '/test_c_projects/makefile_project/incmacros'))
   \ . ' ' . ale#Escape('-Dmacro="value"')
   \ . ' -DGoal=9'
   \ . ' -D macro2'
@@ -591,6 +595,8 @@ Execute(We should quote the flags we need to quote):
   \     'incframework',
   \     '-include',
   \     '''foo bar''',
+  \     '-imacros',
+  \     'incmacros',
   \     '-Dmacro="value"',
   \     '-DGoal=9',
   \     '-D',
diff --git a/test/test_deno_executable_detection.vader b/test/test_deno_executable_detection.vader
new file mode 100644
index 00000000..edd408b1
--- /dev/null
+++ b/test/test_deno_executable_detection.vader
@@ -0,0 +1,19 @@
+Before:
+  runtime autoload/ale/handlers/deno.vim
+
+After:
+  unlet! g:ale_deno_executable
+
+  call ale#linter#Reset()
+
+Execute(Default executable should be detected correctly):
+  AssertEqual
+  \ 'deno',
+  \ ale#handlers#deno#GetExecutable(bufnr(''))
+
+Execute(User specified executable should override default):
+  let g:ale_deno_executable = '/path/to/deno-bin'
+  AssertEqual
+  \ '/path/to/deno-bin',
+  \ ale#handlers#deno#GetExecutable(bufnr(''))
+
diff --git a/test/test_filetype_linter_defaults.vader b/test/test_filetype_linter_defaults.vader
index e9980536..d4e708ec 100644
--- a/test/test_filetype_linter_defaults.vader
+++ b/test/test_filetype_linter_defaults.vader
@@ -70,3 +70,10 @@ Execute(The defaults for the verilog filetype should be correct):
 Execute(Default aliases for React should be defined):
   AssertEqual ['javascript', 'jsx'], ale#linter#ResolveFiletype('javascriptreact')
   AssertEqual ['typescript', 'tsx'], ale#linter#ResolveFiletype('typescriptreact')
+
+Execute(The defaults for the apkbuild filetype should be correct):
+  AssertEqual ['apkbuild_lint', 'secfixes_check'], GetLinterNames('apkbuild')
+
+  let g:ale_linters_explicit = 1
+
+  AssertEqual [], GetLinterNames('apkbuild')
diff --git a/test/test_floating_preview.vader b/test/test_floating_preview.vader
new file mode 100644
index 00000000..43415556
--- /dev/null
+++ b/test/test_floating_preview.vader
@@ -0,0 +1,92 @@
+Before:
+  let g:ale_floating_preview = 0
+  let g:ale_hover_to_floating_preview = 0
+  let g:ale_detail_to_floating_preview = 0
+
+  runtime autoload/ale/floating_preview.vim
+
+  let g:floated_lines = []
+  let g:floating_preview_show_called = 0
+
+  " Stub out so we can track the call
+  function! ale#floating_preview#Show(lines, ...) abort
+    let g:floating_preview_show_called = 1
+    let g:floated_lines = a:lines
+  endfunction
+
+  let g:ale_buffer_info = {
+  \ bufnr('%'): {
+  \   'loclist': [
+  \     {
+  \       'lnum': 1,
+  \       'col': 10,
+  \       'bufnr': bufnr('%'),
+  \       'vcol': 0,
+  \       'linter_name': 'notalinter',
+  \       'nr': -1,
+  \       'type': 'E',
+  \       'code': 'semi',
+  \       'text': "Missing semicolon.\r",
+  \       'detail': "Every statement should end with a semicolon\nsecond line",
+  \     },
+  \   ],
+  \ }
+  \}
+
+  call ale#linter#Reset()
+  call ale#linter#PreventLoading('javascript')
+
+After:
+  Restore
+
+  let g:ale_floating_preview = 0
+  let g:ale_hover_to_floating_preview = 0
+  let g:ale_detail_to_floating_preview = 0
+
+  call cursor(1, 1)
+
+  let g:ale_buffer_info = {}
+
+  " Close the preview window if it's open.
+  if &filetype is# 'ale-preview'
+    noautocmd :q!
+  endif
+
+  call ale#linter#Reset()
+
+
+Given javascript(A file with warnings/errors):
+  var x = 3 + 12345678
+  var x = 5*2 + parseInt("10");
+  // comment
+
+Execute(Floating preview is used with ALEDetail when g:ale_floating_preview set):
+  let g:ale_floating_preview = 1
+
+  call cursor(1, 10)
+
+  ALEDetail
+
+  let expected = ["Every statement should end with a semicolon", "second line"]
+
+  AssertEqual 1, g:floating_preview_show_called
+  AssertEqual expected, g:floated_lines
+
+Execute(Floating preview is used with ALEDetail when g:ale_detail_to_floating_preview set):
+  let g:ale_detail_to_floating_preview = 1
+
+  call cursor(1, 10)
+
+  ALEDetail
+
+  let expected = ["Every statement should end with a semicolon", "second line"]
+
+  AssertEqual 1, g:floating_preview_show_called
+  AssertEqual expected, g:floated_lines
+
+Execute(Floating preview is not used with ALEDetail by default):
+  call cursor(1, 10)
+
+  ALEDetail
+
+  AssertEqual 0, g:floating_preview_show_called
diff --git a/test/test_hover.vader b/test/test_hover.vader
index ed756396..7a9c8d91 100644
--- a/test/test_hover.vader
+++ b/test/test_hover.vader
@@ -7,9 +7,25 @@ Before:
   let g:item_list = []
   let g:show_message_arg_list = []
 
+  let g:ale_floating_preview = 0
+  let g:ale_hover_to_floating_preview = 0
+  let g:ale_detail_to_floating_preview = 0
+
   runtime autoload/ale/linter.vim
   runtime autoload/ale/lsp.vim
+  runtime autoload/ale/lsp_linter.vim
   runtime autoload/ale/util.vim
+  runtime autoload/ale/floating_preview.vim
+  runtime autoload/ale/hover.vim
+
+  let g:floated_lines = []
+  let g:floating_preview_show_called = 0
+
+  " Stub out so we can track the call
+  function! ale#floating_preview#Show(lines, ...) abort
+    let g:floating_preview_show_called = 1
+    let g:floated_lines = a:lines
+  endfunction
 
   function! ale#lsp_linter#StartLSP(buffer, linter, callback) abort
     let g:Callback = a:callback
@@ -50,6 +66,7 @@ Before:
     \)
   endfunction
 
+
 After:
   call ale#hover#SetMap({})
   call ale#test#RestoreDirectory()
@@ -65,6 +82,7 @@ After:
   runtime autoload/ale/lsp_linter.vim
   runtime autoload/ale/lsp.vim
   runtime autoload/ale/util.vim
+  runtime autoload/ale/floating_preview.vim
 
 Given python(Some Python file):
   foo
@@ -168,6 +186,28 @@ Execute(LSP hover response with lists of strings and marked strings should be ha
   \], g:show_message_arg_list
   AssertEqual {}, ale#hover#GetMap()
 
+Execute(LSP hover with ale_floating_preview should float):
+  let g:ale_floating_preview = 1
+
+  call HandleValidLSPResult({'contents': "the message\ncontinuing"})
+
+  AssertEqual 1, g:floating_preview_show_called
+  AssertEqual ["the message", "continuing"], g:floated_lines
+
+Execute(LSP hover ale_hover_to_floating_preview should float):
+  let g:ale_hover_to_floating_preview = 1
+
+  call HandleValidLSPResult({'contents': "the message\ncontinuing"})
+
+  AssertEqual 1, g:floating_preview_show_called
+  AssertEqual ["the message", "continuing"], g:floated_lines
+
+
+Execute(LSP hover by default should not float):
+  call HandleValidLSPResult({'contents': "the message\ncontinuing"})
+
+  AssertEqual 0, g:floating_preview_show_called
+
 Execute(tsserver responses for documentation requests should be handled):
   call ale#hover#SetMap({3: {'show_documentation': 1, 'buffer': bufnr('')}})
 
@@ -187,3 +227,46 @@ Execute(tsserver responses for documentation requests should be handled):
   " The preview window should show the text.
   AssertEqual ['foo is a very good method'], ale#test#GetPreviewWindowText()
   silent! pclose
+
+Execute(hover with show_documentation should be in the preview window, not floating):
+  let g:ale_hover_to_floating_preview = 1
+  let g:ale_floating_preview = 1
+
+  call ale#hover#SetMap({3: {'show_documentation': 1, 'buffer': bufnr('')}})
+
+  call ale#hover#HandleTSServerResponse(
+  \ 1,
+  \ {
+  \   'command': 'quickinfo',
+  \   'request_seq': 3,
+  \   'success': v:true,
+  \   'body': {
+  \     'documentation': 'foo is a very good method',
+  \     'displayString': 'foo bar ',
+  \   },
+  \ }
+  \)
+
+  let expected = ["Every statement should end with a semicolon", "second line"]
+
+  AssertEqual 0, g:floating_preview_show_called
+
+Execute(TSServer hover without show_documentation and ale_floating_preview should float):
+  let g:ale_floating_preview = 1
+
+  call ale#hover#SetMap({3: {'buffer': bufnr('')}})
+
+  call ale#hover#HandleTSServerResponse(
+  \ 1,
+  \ {
+  \   'command': 'quickinfo',
+  \   'request_seq': 3,
+  \   'success': v:true,
+  \   'body': {
+  \     'displayString': "the message\ncontinuing",
+  \   },
+  \ }
+  \)
+
+  AssertEqual 1, g:floating_preview_show_called
+  AssertEqual ["the message", "continuing"], g:floated_lines
diff --git a/test/test_redundant_tsserver_rendering_avoided.vader b/test/test_redundant_tsserver_rendering_avoided.vader
index 6125ebc2..bde5d152 100644
--- a/test/test_redundant_tsserver_rendering_avoided.vader
+++ b/test/test_redundant_tsserver_rendering_avoided.vader
@@ -111,7 +111,7 @@ Execute(An initial list of semantic errors should be handled):
 
   Assert g:ale_handle_loclist_called
 
-Execute(Subsequent empty lists should be ignored):
+Execute(Subsequent empty lists should be ignored - semantic):
   let g:ale_buffer_info[bufnr('')].semantic_loclist = []
 
   call ale#lsp_linter#HandleLSPResponse(1, CreateError('semanticDiag', ''))
@@ -138,3 +138,31 @@ Execute(Non-empty then non-empty semantic errors should be handled):
   call ale#lsp_linter#HandleLSPResponse(1, CreateError('semanticDiag', 'x'))
 
   Assert g:ale_handle_loclist_called
+
+Execute(Subsequent empty lists should be ignored - suggestion):
+  let g:ale_buffer_info[bufnr('')].suggestion_loclist = []
+
+  call ale#lsp_linter#HandleLSPResponse(1, CreateError('suggestionDiag', ''))
+
+  Assert !g:ale_handle_loclist_called
+
+Execute(Empty then non-empty suggestion messages should be handled):
+  let g:ale_buffer_info[bufnr('')].suggestion_loclist = []
+
+  call ale#lsp_linter#HandleLSPResponse(1, CreateError('suggestionDiag', 'x'))
+
+  Assert g:ale_handle_loclist_called
+
+Execute(Non-empty then empt suggestion messages should be handled):
+  let g:ale_buffer_info[bufnr('')].suggestion_loclist = CreateLoclist('x')
+
+  call ale#lsp_linter#HandleLSPResponse(1, CreateError('suggestionDiag', ''))
+
+  Assert g:ale_handle_loclist_called
+
+Execute(Non-empty then non-empty suggestion messages should be handled):
+  let g:ale_buffer_info[bufnr('')].suggestion_loclist = CreateLoclist('x')
+
+  call ale#lsp_linter#HandleLSPResponse(1, CreateError('suggestionDiag', 'x'))
+
+  Assert g:ale_handle_loclist_called
diff --git a/test/typescript/test.ts b/test/typescript/test.ts
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/typescript/test.ts
diff --git a/test/typescript/tsconfig.json b/test/typescript/tsconfig.json
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/typescript/tsconfig.json
diff --git a/test/xo-test-files/monorepo/node_modules/xo/cli.js b/test/xo-test-files/monorepo/node_modules/xo/cli.js
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/xo-test-files/monorepo/node_modules/xo/cli.js
diff --git a/test/xo-test-files/monorepo/package.json b/test/xo-test-files/monorepo/package.json
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/xo-test-files/monorepo/package.json
diff --git a/test/xo-test-files/monorepo/packages/a/index.js b/test/xo-test-files/monorepo/packages/a/index.js
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/xo-test-files/monorepo/packages/a/index.js
diff --git a/test/xo-test-files/monorepo/packages/a/index.ts b/test/xo-test-files/monorepo/packages/a/index.ts
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/xo-test-files/monorepo/packages/a/index.ts
diff --git a/test/xo-test-files/monorepo/packages/a/package.json b/test/xo-test-files/monorepo/packages/a/package.json
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/xo-test-files/monorepo/packages/a/package.json