support jsonlint local executable

ale_linters/json/jsonlint.vim

@@ -1,4 +1,21 @@
-" Author: KabbAmine <amine.kabb@gmail.com>
+" Author: KabbAmine <amine.kabb@gmail.com>, David Sierra <https://github.com/davidsierradz>
+
+call ale#Set('json_jsonlint_executable', 'jsonlint')
+call ale#Set('json_jsonlint_use_global', get(g:, 'ale_use_global_executables', 0))
+
+function! ale_linters#json#jsonlint#GetExecutable(buffer) abort
+    return ale#node#FindExecutable(a:buffer, 'json_jsonlint', [
+    \   'node_modules/.bin/jsonlint',
+    \   'node_modules/jsonlint/lib/cli.js',
+    \])
+endfunction
+
+function! ale_linters#json#jsonlint#GetCommand(buffer) abort
+    let l:executable = ale_linters#json#jsonlint#GetExecutable(a:buffer)
+
+    return ale#node#Executable(a:buffer, l:executable)
+    \   . ' --compact -'
+endfunction
 
 function! ale_linters#json#jsonlint#Handle(buffer, lines) abort
     " Matches patterns like the following:
@@ -19,8 +36,8 @@ endfunction
 
 call ale#linter#Define('json', {
 \   'name': 'jsonlint',
-\   'executable': 'jsonlint',
+\   'executable': function('ale_linters#json#jsonlint#GetExecutable'),
 \   'output_stream': 'stderr',
-\   'command': 'jsonlint --compact -',
+\   'command': function('ale_linters#json#jsonlint#GetCommand'),
 \   'callback': 'ale_linters#json#jsonlint#Handle',
 \})

doc/ale-json.txt

@@ -52,7 +52,21 @@ g:ale_json_fixjson_use_global                   *g:ale_json_fixjson_use_global*
 ===============================================================================
 jsonlint                                                    *ale-json-jsonlint*
 
-There are no options available.
+g:ale_json_jsonlint_executable                 *g:ale_json_jsonlint_executable*
+                                               *b:ale_json_jsonlint_executable*
+
+  Type: |String|
+  Default: `'jsonlint'`
+
+  The executable that will be run for jsonlint.
+
+g:ale_json_jsonlint_use_global                  *g:ale_json_jsonlint_use_global*
+                                                *b:ale_json_jsonlint_use_global*
+
+  Type: |Number|
+  Default: `get(g:, 'ale_use_global_executables', 0)`
+
+  See |ale-integrations-local-executables|
 
 
 ===============================================================================

test/test_jsonlint_executable_detection.vader

@@ -0,0 +1,46 @@
+Before:
+  call ale#test#SetDirectory('/testplugin/test')
+
+  runtime ale_linters/json/jsonlint.vim
+
+After:
+  let g:ale_has_override = {}
+  let g:ale_json_jsonlint_executable = 'jsonlint'
+  let g:ale_json_jsonlint_use_global = 0
+
+  call ale#test#RestoreDirectory()
+  call ale#linter#Reset()
+
+Execute(local executable should be detected correctly):
+  call ale#test#SetFilename('jsonlint-test-files/app/src/app.json')
+
+  AssertEqual
+  \ ale#path#Simplify(g:dir . '/jsonlint-test-files/app/node_modules/.bin/jsonlint'),
+  \ ale_linters#json#jsonlint#GetExecutable(bufnr(''))
+
+Execute(recursively executable should be detected correctly):
+  call ale#test#SetFilename('jsonlint-test-files/app-without-jsonlint/src/app.json')
+
+  AssertEqual
+  \ ale#path#Simplify(g:dir . '/jsonlint-test-files/node_modules/jsonlint/lib/cli.js'),
+  \ ale_linters#json#jsonlint#GetExecutable(bufnr(''))
+
+Execute(use_global should override project executable):
+  let g:ale_json_jsonlint_use_global = 1
+
+  call ale#test#SetFilename('jsonlint-test-files/app/src/app.json')
+
+  AssertEqual
+  \ 'jsonlint',
+  \ ale_linters#json#jsonlint#GetExecutable(bufnr(''))
+
+Execute(manually defined should override default executable):
+  let g:ale_json_jsonlint_use_global = 1
+  let g:ale_json_jsonlint_executable = 'custom_jsonlint'
+
+  call ale#test#SetFilename('jsonlint-test-files/app/src/app.json')
+
+  AssertEqual
+  \ 'custom_jsonlint',
+  \ ale_linters#json#jsonlint#GetExecutable(bufnr(''))
+