refactor sasslint linter (#2077)

Previous implementation required one to have sass-lint globally. This
allows you to have it locally, override the executable and add options.

1 files changed, 19 insertions, 9 deletions

diff --git a/ale_linters/scss/sasslint.vim b/ale_linters/scss/sasslint.vim
index f6075001..8b725ba6 100644
--- a/ale_linters/scss/sasslint.vim
+++ b/ale_linters/scss/sasslint.vim
@@ -1,18 +1,28 @@
-" Author: KabbAmine - https://github.com/KabbAmine, Ben Falconer
-" <ben@falconers.me.uk>
+" Author: sQVe - https://github.com/sQVe
+
+call ale#Set('scss_sasslint_executable', 'sass-lint')
+call ale#Set('scss_sasslint_options', '')
+call ale#Set('scss_sasslint_use_global', get(g:, 'ale_use_global_executables', 0))
+
+function! ale_linters#scss#sasslint#GetExecutable(buffer) abort
+    return ale#node#FindExecutable(a:buffer, 'scss_sasslint', [
+    \   'node_modules/sass-lint/bin/sass-lint.js',
+    \   'node_modules/.bin/sass-lint',
+    \])
+endfunction
 
 function! ale_linters#scss#sasslint#GetCommand(buffer) abort
-    return ale#path#BufferCdString(a:buffer)
-    \   . ale#Escape('sass-lint')
-    \   . ' -v'
-    \   . ' -q'
-    \   . ' -f compact'
-    \   . ' %t'
+    let l:executable = ale_linters#scss#sasslint#GetExecutable(a:buffer)
+    let l:options = ale#Var(a:buffer, 'scss_sasslint_options')
+
+    return ale#node#Executable(a:buffer, l:executable)
+    \   . (!empty(l:options) ? ' ' . l:options : '')
+    \   . ' -v -q -f compact %t'
 endfunction
 
 call ale#linter#Define('scss', {
 \   'name': 'sasslint',
-\   'executable': 'sass-lint',
+\   'executable_callback': 'ale_linters#scss#sasslint#GetExecutable',
 \   'command_callback': 'ale_linters#scss#sasslint#GetCommand',
 \   'callback': 'ale#handlers#css#HandleCSSLintFormat',
 \})