Fix eslint cwd strategy (#4781)

Change eslint cwd to follow configuration file paths.

autoload/ale/handlers/eslint.vim

@@ -45,31 +45,7 @@ endfunction
 
 " Given a buffer, return an appropriate working directory for ESLint.
 function! ale#handlers#eslint#GetCwd(buffer) abort
-    " ESLint 6 loads plugins/configs/parsers from the project root
+    return ale#path#Dirname(ale#handlers#eslint#FindConfig(a:buffer))
-    " By default, the project root is simply the CWD of the running process.
-    " https://github.com/eslint/rfcs/blob/master/designs/2018-simplified-package-loading/README.md
-    " https://github.com/dense-analysis/ale/issues/2787
-    "
-    " If eslint is installed in a directory which contains the buffer, assume
-    " it is the ESLint project root.  Otherwise, use nearest node_modules.
-    " Note: If node_modules not present yet, can't load local deps anyway.
-    let l:executable = ale#path#FindNearestExecutable(a:buffer, s:executables)
-
-    if !empty(l:executable)
-        let l:modules_index = strridx(l:executable, 'node_modules')
-        let l:modules_root = l:modules_index > -1 ? l:executable[0:l:modules_index - 2] : ''
-
-        let l:sdks_index = strridx(l:executable, ale#path#Simplify('.yarn/sdks'))
-        let l:sdks_root = l:sdks_index > -1 ? l:executable[0:l:sdks_index - 2] : ''
-    else
-        let l:modules_dir = ale#path#FindNearestDirectory(a:buffer, 'node_modules')
-        let l:modules_root = !empty(l:modules_dir) ? fnamemodify(l:modules_dir, ':h:h') : ''
-
-        let l:sdks_dir = ale#path#FindNearestDirectory(a:buffer, ale#path#Simplify('.yarn/sdks'))
-        let l:sdks_root = !empty(l:sdks_dir) ? fnamemodify(l:sdks_dir, ':h:h:h') : ''
-    endif
-
-    return strlen(l:modules_root) > strlen(l:sdks_root) ? l:modules_root : l:sdks_root
 endfunction
 
 function! ale#handlers#eslint#GetCommand(buffer) abort

test/fixers/test_eslint_fixer_callback.vader

@@ -167,7 +167,7 @@ Execute(The lower priority configuration file in a nested directory should be pr
   AssertFixer
   \ {
   \   'read_temporary_file': 1,
-  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/react-app'),
+  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/subdir-with-config'),
   \   'command': (has('win32') ? 'node.exe ' : '')
   \     . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/node_modules/eslint/bin/eslint.js'))
   \     . ' -c ' . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/subdir-with-config/.eslintrc'))
@@ -182,7 +182,7 @@ Execute(--config in options should override configuration file detection for old
   AssertFixer
   \ {
   \   'read_temporary_file': 1,
-  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/react-app'),
+  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/subdir-with-config'),
   \   'command': (has('win32') ? 'node.exe ' : '')
   \     . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/node_modules/eslint/bin/eslint.js'))
   \     . ' --config /foo.cfg'
@@ -194,7 +194,7 @@ Execute(--config in options should override configuration file detection for old
   AssertFixer
   \ {
   \   'read_temporary_file': 1,
-  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/react-app'),
+  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/subdir-with-config'),
   \   'command': (has('win32') ? 'node.exe ' : '')
   \     . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/node_modules/eslint/bin/eslint.js'))
   \     . ' -c /foo.cfg'
@@ -235,7 +235,7 @@ Execute(The version check should be correct):
   \   . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/node_modules/eslint/bin/eslint.js'))
   \   . ' --version',
   \ {
-  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/react-app'),
+  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/subdir-with-config'),
   \   'command': (has('win32') ? 'node.exe ' : '')
   \     . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/node_modules/eslint/bin/eslint.js'))
   \     . ' --stdin-filename %s --stdin --fix-dry-run --format=json',
@@ -245,7 +245,7 @@ Execute(The version check should be correct):
 
   AssertFixer [
   \ {
-  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/react-app'),
+  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/subdir-with-config'),
   \   'command': (has('win32') ? 'node.exe ' : '')
   \     . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/react-app/node_modules/eslint/bin/eslint.js'))
   \     . ' --stdin-filename %s --stdin --fix-dry-run --format=json',
@@ -266,39 +266,6 @@ Execute(--fix-dry-run should be used for 4.9.0 and up):
   \   'process_with': 'ale#fixers#eslint#ProcessFixDryRunOutput',
   \ }
 
-Execute(--fix-to-stdout should be used for eslint_d):
-  call ale#test#SetFilename('../test-files/eslint/app-with-eslint-d/testfile.js')
-
-  AssertFixer
-  \ {
-  \   'read_temporary_file': 1,
-  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/app-with-eslint-d'),
-  \   'command': ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/app-with-eslint-d/node_modules/.bin/eslint_d'))
-  \     . ' -c ' . ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/package.json'))
-  \     . ' --fix %t',
-  \ }
-
-  " The option should be used when eslint_d is new enough.
-  " We look at the ESLint version instead of the eslint_d version.
-  GivenCommandOutput ['v3.19.0 (eslint_d v4.2.0)']
-  AssertFixer
-  \ {
-  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/app-with-eslint-d'),
-  \   'command': ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/app-with-eslint-d/node_modules/.bin/eslint_d'))
-  \     . ' --stdin-filename %s --stdin --fix-to-stdout',
-  \   'process_with': 'ale#fixers#eslint#ProcessEslintDOutput',
-  \ }
-
-  " The option should be used for new versions too.
-  GivenCommandOutput ['4.9.0']
-  AssertFixer
-  \ {
-  \   'cwd': ale#path#Simplify(g:dir . '/../test-files/eslint/app-with-eslint-d'),
-  \   'command': ale#Escape(ale#path#Simplify(g:dir . '/../test-files/eslint/app-with-eslint-d/node_modules/.bin/eslint_d'))
-  \     . ' --stdin-filename %s --stdin --fix-to-stdout',
-  \   'process_with': 'ale#fixers#eslint#ProcessEslintDOutput',
-  \ }
-
 Execute(The --fix-dry-run post-processor should handle JSON output correctly):
   AssertEqual
   \ [],

test/linter/test_eslint.vader

@@ -50,13 +50,6 @@ Execute(use-global should override other app directories):
   AssertLinterCwd ale#path#Simplify(g:dir . '/../test-files/eslint')
   AssertLinter b:executable, ale#Escape(b:executable) . b:args
 
-Execute(eslint_d should be detected correctly):
-  call ale#test#SetFilename('../test-files/eslint/app-with-eslint-d/testfile.js')
-
-  let b:executable = ale#path#Simplify(g:dir . '/../test-files/eslint/app-with-eslint-d/node_modules/.bin/eslint_d')
-  AssertLinterCwd ale#path#Simplify(g:dir . '/../test-files/eslint/app-with-eslint-d')
-  AssertLinter b:executable, ale#Escape(b:executable) . b:args
-
 Execute(eslint.js executables should be run with node on Windows):
   call ale#test#SetFilename('../test-files/eslint/react-app/subdir/testfile.js')