Merge pull request #2136 from hsanson/368-chktex-latex-report-errors-from-wrong-file

Fix 368 - Lacheck reports errors from input{} files.

ale_linters/tex/lacheck.vim

@@ -8,20 +8,26 @@ function! ale_linters#tex#lacheck#Handle(buffer, lines) abort
     "
     " "book.tex", line 37: possible unwanted space at "{"
     " "book.tex", line 38: missing `\ ' after "etc."
-    let l:pattern = '^".\+", line \(\d\+\): \(.\+\)$'
+    let l:pattern = '^"\(.\+\)", line \(\d\+\): \(.\+\)$'
     let l:output = []
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
         " lacheck follows `\input{}` commands. If the cwd is not the same as the
         " file in the buffer then it will fail to find the inputed items. We do not
         " want warnings from those items anyway
-        if !empty(matchstr(l:match[2], '^Could not open ".\+"$'))
+        if !empty(matchstr(l:match[3], '^Could not open ".\+"$'))
+            continue
+        endif
+
+        " lacheck follows `\input{}` commands. We are only interested in
+        " reporting errors for the current buffer only.
+        if empty(matchstr(fnamemodify(l:match[1], ':t'), fnamemodify(bufname(a:buffer), ':t')))
             continue
         endif
 
         call add(l:output, {
-        \   'lnum': l:match[1] + 0,
+        \   'lnum': l:match[2] + 0,
-        \   'text': l:match[2],
+        \   'text': l:match[3],
         \   'type': 'W',
         \})
     endfor

test/command_callback/test_tex_lacheck_command_callback.vader

@@ -0,0 +1,13 @@
+Before:
+  call ale#assert#SetUpLinterTest('tex', 'lacheck')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(Executable should default to lacheck):
+  AssertLinter 'lacheck', ale#Escape('lacheck') . ' %t'
+
+Execute(Should be able to set a custom executable):
+  let g:ale_tex_lacheck_executable = 'bin/foo'
+
+  AssertLinter 'bin/foo' , ale#Escape('bin/foo') . ' %t'

test/handler/test_lacheck_handler.vader

@@ -0,0 +1,36 @@
+Before:
+  runtime ale_linters/tex/lacheck.vim
+  call ale#test#SetDirectory('/testplugin/test')
+
+After:
+  call ale#linter#Reset()
+  call ale#test#RestoreDirectory()
+
+Execute(The lacheck handler should parse lines correctly):
+
+  call ale#test#SetFilename('command_callback/tex_paths/sample1.tex')
+
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 1,
+  \     'type': 'W',
+  \     'text': 'perhaps you should insert a `~'' before "\ref"'
+  \   }
+  \ ],
+  \ ale_linters#tex#lacheck#Handle(bufnr(''), [
+  \ "** sample1:",
+  \ "\"sample1.tex\", line 1: perhaps you should insert a `~' before \"\\ref\""
+  \ ])
+
+Execute(The lacheck handler should ignore errors from input files):
+
+  call ale#test#SetFilename('ale_test.tex')
+
+  AssertEqual
+  \ [
+  \ ],
+  \ ale_linters#tex#lacheck#Handle(255, [
+  \ "** ale_input:",
+  \ "\"ale_input.tex\", line 1: perhaps you should insert a `~' before \"\\ref\""
+  \ ])