#1095 - Use --stdin-filepath for prettier, where available

autoload/ale/fixers/prettier.vim

@@ -4,31 +4,8 @@
 
 call ale#Set('javascript_prettier_executable', 'prettier')
 call ale#Set('javascript_prettier_use_global', 0)
-call ale#Set('javascript_prettier_use_local_config', 0)
 call ale#Set('javascript_prettier_options', '')
 
-function! s:FindConfig(buffer) abort
-    for l:filename in [
-    \   '.prettierrc',
-    \   '.prettierrc.json',
-    \   '.prettierrc.yaml',
-    \   '.prettierrc.yml',
-    \   '.prettierrc.js',
-    \   'prettier.config.js',
-    \   '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#fixers#prettier#GetExecutable(buffer) abort
     return ale#node#FindExecutable(a:buffer, 'javascript_prettier', [
     \   'node_modules/.bin/prettier_d',
@@ -38,32 +15,38 @@ function! ale#fixers#prettier#GetExecutable(buffer) abort
 endfunction
 
 function! ale#fixers#prettier#Fix(buffer) abort
-    let l:options = ale#Var(a:buffer, 'javascript_prettier_options')
-    let l:config = s:FindConfig(a:buffer)
-    let l:use_config = ale#Var(a:buffer, 'javascript_prettier_use_local_config')
-                \ && !empty(l:config)
-    let l:filetype = getbufvar(a:buffer, '&filetype')
+    let l:executable = ale#fixers#prettier#GetExecutable(a:buffer)
 
-    " Append the --parser flag depending on the current filetype (unless it's
-    " already set in g:javascript_prettier_options).
-    if match(l:options, '--parser') == -1
-        if l:filetype is# 'typescript'
-            let l:parser = 'typescript'
-        elseif l:filetype =~# 'css\|scss\|less'
-            let l:parser = 'postcss'
-        elseif l:filetype is# 'json'
-            let l:parser = 'json'
-        else
-            let l:parser = 'babylon'
-        endif
-        let l:options = (!empty(l:options) ? l:options . ' ' : '') . '--parser ' . l:parser
+    let l:command = ale#semver#HasVersion(l:executable)
+    \   ? ''
+    \   : ale#Escape(l:executable) . ' --version'
+
+    return {
+    \   'command': l:command,
+    \   'chain_with': 'ale#fixers#prettier#ApplyFixForVersion',
+    \}
+endfunction
+
+function! ale#fixers#prettier#ApplyFixForVersion(buffer, version_output) abort
+    let l:executable = ale#fixers#prettier#GetExecutable(a:buffer)
+    let l:options = ale#Var(a:buffer, 'javascript_prettier_options')
+
+    let l:version = ale#semver#GetVersion(l:executable, a:version_output)
+
+    " 1.4.0 is the first version with --stdin-filepath
+    if ale#semver#GTE(l:version, [1, 4, 0])
+        return {
+        \   'command': ale#path#BufferCdString(a:buffer)
+        \       . ale#Escape(l:executable)
+        \       . (!empty(l:options) ? ' ' . l:options : '')
+        \       . ' --stdin-filepath %s --stdin',
+        \}
     endif
 
     return {
-    \   'command': ale#Escape(ale#fixers#prettier#GetExecutable(a:buffer))
+    \   'command': ale#Escape(l:executable)
     \       . ' %t'
     \       . (!empty(l:options) ? ' ' . l:options : '')
-    \       . (l:use_config ? ' --config ' . ale#Escape(l:config) : '')
     \       . ' --write',
     \   'read_temporary_file': 1,
     \}