Make pug-lint detect node_modules executables, and add options for pug-lint like the other linters

ale_linters/pug/puglint.vim

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

doc/ale-pug.txt

@@ -0,0 +1,44 @@
+===============================================================================
+ALE Pug Integration                                           *ale-pug-options*
+
+
+-------------------------------------------------------------------------------
+puglint                                                       *ale-pug-puglint*
+
+The puglint linter will detect configuration files based on the path to the
+filename automatically. Configuration files will be loaded in this order:
+
+1. `.pug-lintrc`
+2. `.pug-lintrc.js`
+3. `.pug-lintrc.json`
+4. `package.json`
+
+You might need to create a configuration file for your project to get
+meaningful results.
+
+g:ale_pug_puglint_executable                     *g:ale_pug_puglint_executable*
+                                                 *b:ale_pug_puglint_executable*
+  Type: |String|
+  Default: `'pug-lint'`
+
+  See |ale-integrations-local-executables|
+
+
+g:ale_pug_puglint_options                           *g:ale_pug_puglint_options*
+                                                    *b:ale_pug_puglint_options*
+  Type: |String|
+  Default: `''`
+
+  This variable can be set to pass additional options to pug-lint.
+
+
+g:ale_pug_puglint_use_global                     *g:ale_pug_puglint_use_global*
+                                                 *b:ale_pug_puglint_use_global*
+  Type: |Number|
+  Default: `0`
+
+  See |ale-integrations-local-executables|
+
+
+-------------------------------------------------------------------------------
+  vim:tw=78:ts=2:sts=2:sw=2:ft=help:norl:

doc/ale.txt

@@ -72,6 +72,8 @@ CONTENTS                                                         *ale-contents*
     php...................................|ale-php-options|
       phpcs...............................|ale-php-phpcs|
       phpmd...............................|ale-php-phpmd|
+    pug...................................|ale-pug-options|
+      puglint.............................|ale-pug-puglint|
     python................................|ale-python-options|
       autopep8............................|ale-python-autopep8|
       flake8..............................|ale-python-flake8|

test/command_callback/test_puglint_command_callback.vader

@@ -0,0 +1,72 @@
+Before:
+  Save g:ale_pug_puglint_options
+  Save g:ale_pug_puglint_executable
+  Save g:ale_pug_puglint_use_global
+
+  let g:ale_pug_puglint_options = ''
+  let g:ale_pug_puglint_executable = 'pug-lint'
+  let g:ale_pug_puglint_use_global = 0
+
+  silent! cd /testplugin/test/command_callback
+  let g:dir = getcwd()
+
+  runtime ale_linters/pug/puglint.vim
+
+After:
+  Restore
+
+  silent execute 'cd ' . fnameescape(g:dir)
+  unlet! g:dir
+
+  call ale#linter#Reset()
+
+Execute(puglint should detect local executables and package.json):
+  call ale#test#SetFilename('puglint_project/test.pug')
+
+  AssertEqual
+  \ g:dir . '/puglint_project/node_modules/.bin/pug-lint',
+  \ ale_linters#pug#puglint#GetExecutable(bufnr(''))
+  AssertEqual
+  \ ale#Escape(g:dir . '/puglint_project/node_modules/.bin/pug-lint')
+  \   . ' -c ' . ale#Escape(g:dir . '/puglint_project/package.json')
+  \   . ' -r inline %t',
+  \ ale_linters#pug#puglint#GetCommand(bufnr(''))
+
+Execute(puglint should use global executables if configured):
+  let g:ale_pug_puglint_use_global = 1
+
+  call ale#test#SetFilename('puglint_project/test.pug')
+
+  AssertEqual 'pug-lint', ale_linters#pug#puglint#GetExecutable(bufnr(''))
+  AssertEqual
+  \ ale#Escape('pug-lint')
+  \   . ' -c ' . ale#Escape(g:dir . '/puglint_project/package.json')
+  \   . ' -r inline %t',
+  \ ale_linters#pug#puglint#GetCommand(bufnr(''))
+
+Execute(puglint should detect .pug-lintrc):
+  call ale#test#SetFilename('puglint_project/puglint_rc_dir/subdir/test.pug')
+
+  AssertEqual
+  \ ale#Escape(g:dir . '/puglint_project/node_modules/.bin/pug-lint')
+  \   . ' -c ' . ale#Escape(g:dir . '/puglint_project/puglint_rc_dir/.pug-lintrc')
+  \   . ' -r inline %t',
+  \ ale_linters#pug#puglint#GetCommand(bufnr(''))
+
+Execute(puglint should detect .pug-lintrc.js):
+  call ale#test#SetFilename('puglint_project/puglint_rc_js_dir/subdir/test.pug')
+
+  AssertEqual
+  \ ale#Escape(g:dir . '/puglint_project/node_modules/.bin/pug-lint')
+  \   . ' -c ' . ale#Escape(g:dir . '/puglint_project/puglint_rc_js_dir/.pug-lintrc.js')
+  \   . ' -r inline %t',
+  \ ale_linters#pug#puglint#GetCommand(bufnr(''))
+
+Execute(puglint should detect .pug-lintrc.json):
+  call ale#test#SetFilename('puglint_project/puglint_rc_json_dir/subdir/test.pug')
+
+  AssertEqual
+  \ ale#Escape(g:dir . '/puglint_project/node_modules/.bin/pug-lint')
+  \   . ' -c ' . ale#Escape(g:dir . '/puglint_project/puglint_rc_json_dir/.pug-lintrc.json')
+  \   . ' -r inline %t',
+  \ ale_linters#pug#puglint#GetCommand(bufnr(''))