add: support config option for checkmake linter (#4351)

`checkmake` by default checks config file "in the same folder it's
executed in" unless `--config` option is set.

This commit allows setting the `--config` option with an option
variable (with documentation updated).

1 files changed, 13 insertions, 1 deletions

diff --git a/ale_linters/make/checkmake.vim b/ale_linters/make/checkmake.vim
index d5f95d6f..fed01b5f 100644
--- a/ale_linters/make/checkmake.vim
+++ b/ale_linters/make/checkmake.vim
@@ -1,5 +1,7 @@
 " Author: aurieh - https://github.com/aurieh
 
+call ale#Set('make_checkmake_config', '')
+
 function! ale_linters#make#checkmake#Handle(buffer, lines) abort
     let l:pattern = '\v^(\d+):(.+):(.+)$'
     let l:output = []
@@ -17,9 +19,19 @@ function! ale_linters#make#checkmake#Handle(buffer, lines) abort
     return l:output
 endfunction
 
+function! ale_linters#make#checkmake#GetCommand(buffer) abort
+    let l:config = ale#Var(a:buffer, 'make_checkmake_config')
+    let l:cmd = 'checkmake'
+    \   . ' --format="{{.LineNumber}}:{{.Rule}}:{{.Violation}}{{\"\r\n\"}}"'
+    \   . (!empty(l:config) ? ' --config="' . l:config . '"' : '')
+    \   . ' %s'
+
+    return l:cmd
+endfunction
+
 call ale#linter#Define('make', {
 \   'name': 'checkmake',
 \   'executable': 'checkmake',
-\   'command': 'checkmake %s --format="{{.LineNumber}}:{{.Rule}}:{{.Violation}}{{\"\r\n\"}}"',
+\   'command': function('ale_linters#make#checkmake#GetCommand'),
 \   'callback': 'ale_linters#make#checkmake#Handle',
 \})