From e7d32fe37677636a0be087163c1efa7d0ba10d47 Mon Sep 17 00:00:00 2001
From: w0rp <devw0rp@gmail.com>
Date: Tue, 14 Mar 2017 23:51:57 +0000
Subject: [PATCH] #333 Pass in a flag indicating that linters should be run
 against files, and clear more jobs

---
 autoload/ale.vim        | 29 ++++++++++++++++-------------
 autoload/ale/engine.vim | 10 +++++++++-
 doc/ale.txt             |  8 +++++++-
 plugin/ale.vim          |  4 ++--
 4 files changed, 34 insertions(+), 17 deletions(-)

diff --git a/autoload/ale.vim b/autoload/ale.vim
index c81a57a..2d29c8f 100644
--- a/autoload/ale.vim
+++ b/autoload/ale.vim
@@ -3,6 +3,7 @@
 "   Manages execution of linters when requested by autocommands
 
 let s:lint_timer = -1
+let s:should_lint_file = 0
 
 " A function for checking various conditions whereby ALE just shouldn't
 " attempt to do anything, say if particular buffer types are open in Vim.
@@ -13,11 +14,25 @@ function! ale#ShouldDoNothing() abort
     \   || ale#util#InSandbox()
 endfunction
 
-function! ale#Queue(delay) abort
+" (delay, [run_file_linters])
+function! ale#Queue(delay, ...) abort
+    if len(a:0) > 1
+        throw 'too many arguments!'
+    endif
+
+    let l:a1 = len(a:0) > 1 ? a:1 : 0
+
+    if type(l:a1) != type(1) || (l:a1 != 0 && l:a1 != 1)
+        throw 'The lint_file argument must be a Number which is either 0 or 1!'
+    endif
+
     if ale#ShouldDoNothing()
         return
     endif
 
+    " Remember the event used for linting.
+    let s:should_lint_file = l:a1
+
     if s:lint_timer != -1
         call timer_stop(s:lint_timer)
         let s:lint_timer = -1
@@ -51,18 +66,6 @@ function! ale#Lint(...) abort
     let g:ale_buffer_info[l:buffer].new_loclist = []
 
     for l:linter in l:linters
-        " Check if a given linter has a program which can be executed.
-        if has_key(l:linter, 'executable_callback')
-            let l:executable = ale#util#GetFunction(l:linter.executable_callback)(l:buffer)
-        else
-            let l:executable = l:linter.executable
-        endif
-
-        if !executable(l:executable)
-            " The linter's program cannot be executed, so skip it.
-            continue
-        endif
-
         call ale#engine#Invoke(l:buffer, l:linter)
     endfor
 endfunction
diff --git a/autoload/ale/engine.vim b/autoload/ale/engine.vim
index 31591de..8f5a06a 100644
--- a/autoload/ale/engine.vim
+++ b/autoload/ale/engine.vim
@@ -626,7 +626,15 @@ endfunction
 function! ale#engine#Invoke(buffer, linter) abort
     " Stop previous jobs for the same linter.
     call s:StopPreviousJobs(a:buffer, a:linter)
-    call s:InvokeChain(a:buffer, a:linter, 0, [])
+
+    let l:executable = has_key(a:linter, 'executable_callback')
+    \   ? ale#util#GetFunction(a:linter.executable_callback)(a:buffer)
+    \   : a:linter.executable
+
+    " Run this program if it can be executed.
+    if executable(l:executable)
+        call s:InvokeChain(a:buffer, a:linter, 0, [])
+    endif
 endfunction
 
 " Given a buffer number, return the warnings and errors for a given buffer.
diff --git a/doc/ale.txt b/doc/ale.txt
index b6e7a10..e4b458f 100644
--- a/doc/ale.txt
+++ b/doc/ale.txt
@@ -1218,12 +1218,18 @@ ALEDetail                                                           *ALEDetail*
 ===============================================================================
 7. API                                                                *ale-api*
 
-ale#Queue(delay)                                                  *ale#Queue()*
+ale#Queue(delay, [run_file_linters])                              *ale#Queue()*
+
   Run linters for the current buffer, based on the filetype of the buffer,
   with a given `delay`. A `delay` of `0` will run the linters immediately.
   The linters will always be run in the background. Calling this function
   again from the same buffer
 
+  An optional `run_file_linters` argument can be given. If `run_file_linters`
+  is `0`, then no linters where the `lint_file` option is set to `1` will be
+  run. If `run_file_linters` is set to `1`, then all linters for the current
+  file will be run. `run_file_linters` defaults to `0`.
+
 
 ale#engine#EscapeCommandPart(command_part)     *ale#engine#EscapeCommandPart()*
 
diff --git a/plugin/ale.vim b/plugin/ale.vim
index 8fa0093..84f57db 100644
--- a/plugin/ale.vim
+++ b/plugin/ale.vim
@@ -157,14 +157,14 @@ function! s:ALEInitAuGroups() abort
     augroup ALERunOnEnterGroup
         autocmd!
         if g:ale_enabled && g:ale_lint_on_enter
-            autocmd BufEnter,BufRead * call ale#Queue(300)
+            autocmd BufEnter,BufRead * call ale#Queue(300, 1)
         endif
     augroup END
 
     augroup ALERunOnSaveGroup
         autocmd!
         if g:ale_enabled && g:ale_lint_on_save
-            autocmd BufWrite * call ale#Queue(0)
+            autocmd BufWrite * call ale#Queue(0, 1)
         endif
     augroup END