From 705f4232c0920a7d1e3f4b70f06fc982015a43d7 Mon Sep 17 00:00:00 2001
From: w0rp <devw0rp@gmail.com>
Date: Tue, 4 Oct 2016 13:50:44 +0100
Subject: [PATCH] Add support for formatting filenames into commands, and use
 it to fix linting with older eslint versions.

---
 ale_linters/javascript/eslint.vim | 10 +++++-----
 plugin/ale/zmain.vim              |  6 ++++++
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/ale_linters/javascript/eslint.vim b/ale_linters/javascript/eslint.vim
index 8a4e03bf..e31a5b15 100644
--- a/ale_linters/javascript/eslint.vim
+++ b/ale_linters/javascript/eslint.vim
@@ -10,9 +10,9 @@ let g:loaded_ale_linters_javascript_eslint = 1
 function! ale_linters#javascript#eslint#Handle(buffer, lines)
     " Matches patterns line the following:
     "
-    " <text>:47:14: Missing trailing comma. [Warning/comma-dangle]
-    " <text>:56:41: Missing semicolon. [Error/semi]
-    let pattern = '^<text>:\(\d\+\):\(\d\+\): \(.\+\) \[\(.\+\)\]'
+    " /path/to/some-filename.js:47:14: Missing trailing comma. [Warning/comma-dangle]
+    " /path/to/some-filename.js:56:41: Missing semicolon. [Error/semi]
+    let pattern = '^.*:\(\d\+\):\(\d\+\): \(.\+\) \[\(.\+\)\]$'
     let output = []
 
     for line in a:lines
@@ -48,13 +48,13 @@ endfunction
 call ALEAddLinter('javascript', {
 \   'name': 'eslint',
 \   'executable': 'eslint',
-\   'command': 'eslint -f unix --stdin',
+\   'command': 'eslint -f unix --stdin --stdin-filename %s',
 \   'callback': 'ale_linters#javascript#eslint#Handle',
 \})
 
 call ALEAddLinter('javascript.jsx', {
 \   'name': 'eslint',
 \   'executable': 'eslint',
-\   'command': 'eslint -f unix --stdin',
+\   'command': 'eslint -f unix --stdin --stdin-filename %s',
 \   'callback': 'ale_linters#javascript#eslint#Handle',
 \})
diff --git a/plugin/ale/zmain.vim b/plugin/ale/zmain.vim
index 26085b66..3cfe28db 100644
--- a/plugin/ale/zmain.vim
+++ b/plugin/ale/zmain.vim
@@ -154,6 +154,12 @@ function! s:ApplyLinter(buffer, linter)
         let command = a:linter.command
     endif
 
+    if command =~# '%s'
+        " If there is a '%s' in the command string, replace it with the name
+        " of the file.
+        let command = printf(command, shellescape(getbufinfo(a:buffer)[0].name))
+    endif
+
     if has('nvim')
         if a:linter.output_stream ==# 'stderr'
             " Read from stderr instead of stdout.