Exec async using node

Move to the AtomLinter/csslint for until `stdin` and `JSON` support are
implemented in the main repository.
Use helpers.execNode to run the linter.

lib/main.coffee

@@ -1,57 +1,34 @@
-csslint = require('csslint').CSSLint
+helpers = require('atom-linter')
 path = require('path')
-fs = require('fs')
-
-# Adapted from cli/common.js in CSSLint
-gatherRules = (options, ruleset) ->
-  warnings = options.rules or options.warnings
-  errors = options.errors
-  if warnings
-    ruleset = ruleset or {}
-    warnings.split(",").map (value) ->
-      ruleset[value] = 1
-  if errors
-    ruleset = ruleset or {}
-    errors.split(",").map (value) ->
-      ruleset[value] = 2
-  return ruleset
 
 module.exports =
-  activate: ->
-    @rules = csslint.getRules()
-
   provideLinter: ->
     helpers = require('atom-linter')
     provider =
       grammarScopes: ['source.css', 'source.html']
       scope: 'file'
       lintOnFly: true
-      lint: (textEditor) =>
+      lint: (textEditor) ->
         filePath = textEditor.getPath()
         text = textEditor.getText()
-        settingRules = @rules
-        try
-          configData = fs.readFileSync(path.join(path.dirname(filePath), '.csslintrc'), "utf-8")
-        if configData
-          fileConfig = JSON.parse(configData)
-        else
-          fileConfig = {}
-        ruleset = gatherRules(fileConfig, settingRules)
-        lintResult = csslint.verify(text, ruleset)
-        if lintResult.messages.length < 1
-          return []
-        toReturn = []
-        for data in lintResult.messages
-          line = data.line - 1
-          col = data.col - 1
-          toReturn.push({
-            type: data.type.charAt(0).toUpperCase() + data.type.slice(1),
-            text: data.message,
-            filePath: filePath
-            range: [[line, col], [line, col]],
-            trace: [{
-              type: "Text",
-              text: '[' + data.rule.id + '] ' + data.rule.desc
-            }]
-          })
-        return toReturn
+        parameters = ['--format=json', '-']
+        exec = path.join(__dirname, '..', 'node_modules', 'csslint', 'cli.js')
+        helpers.execNode(exec, parameters, {stdin: text}).then (output) ->
+          lintResult = JSON.parse(output)
+          toReturn = []
+          if lintResult.messages.length < 1
+            return toReturn
+          for data in lintResult.messages
+            line = data.line - 1
+            col = data.col - 1
+            toReturn.push({
+              type: data.type.charAt(0).toUpperCase() + data.type.slice(1),
+              text: data.message,
+              filePath: filePath
+              range: [[line, col], [line, col]],
+              trace: [{
+                type: "Text",
+                text: '[' + data.rule.id + '] ' + data.rule.desc
+              }]
+            })
+          return toReturn

package.json

@@ -12,7 +12,8 @@
   "repository": "https://github.com/AtomLinter/linter-csslint",
   "license": "MIT",
   "dependencies": {
-    "csslint": "~0.10.0"
+    "csslint": "AtomLinter/csslint",
+    "atom-linter": "^3.0.0"
   },
   "providedServices": {
     "linter": {