Add warning support

Ref: standard/snazzy#29

index.js

@@ -8,8 +8,15 @@ function jsonify (rawtext, opts) {
   const results = []
   const resultMap = {}
   lines.forEach(function (line) {
+    const originalLine = line
+    let messageType = 'error'
+    if (line.endsWith(' (warning)')) {
+      line = line.slice(0, -10)
+      messageType = 'warning'
+    }
+
     const re = /\s*([A-Za-z]:)?([^:]+):([^:]+):([^:]+): (.*?)( \((.*)\))?$/.exec(line)
-    if (!re) return opts.noisey ? console.error(line) : null
+    if (!re) return opts.noisey ? console.error(originalLine) : null
     if (re[1] === undefined) re[1] = ''
 
     const filePath = re[1] + re[2]
@@ -27,7 +34,8 @@ function jsonify (rawtext, opts) {
       line: re[3],
       column: re[4],
       message: re[5].trim(),
-      ruleId: re[7]
+      ruleId: re[7],
+      type: messageType
     })
   })
 

test/data-warning.txt

@@ -0,0 +1,4 @@
+standard: Use JavaScript Standard Style (https://standardjs.com)
+standard: Some warnings are present which will be errors in the next version (https://standardjs.com)
+  /someplace/index.js:2:1: 'hello' is not defined. (no-undef)
+  /someplace/index.js:2:11: Expected property shorthand. (object-shorthand) (warning)

test/index.js

@@ -12,12 +12,14 @@ test('standard-json', function (t) {
       line: '5',
       column: '23',
       message: 'Strings must use singlequote.',
-      ruleId: undefined
+      ruleId: undefined,
+      type: 'error'
     }, {
       line: '15',
       column: '36',
       message: 'Extra semicolon.',
-      ruleId: undefined
+      ruleId: undefined,
+      type: 'error'
     }]
   }]
 
@@ -35,12 +37,14 @@ test('standard-json verbose', function (t) {
       line: '5',
       column: '23',
       message: 'Strings must use singlequote.',
-      ruleId: 'quotes'
+      ruleId: 'quotes',
+      type: 'error'
     }, {
       line: '15',
       column: '36',
       message: 'Extra semicolon.',
-      ruleId: 'semi'
+      ruleId: 'semi',
+      type: 'error'
     }]
   }]
 
@@ -58,12 +62,14 @@ test('standard-json verbose with Windows path', function (t) {
       line: '5',
       column: '23',
       message: 'Strings must use singlequote.',
-      ruleId: 'quotes'
+      ruleId: 'quotes',
+      type: 'error'
     }, {
       line: '15',
       column: '36',
       message: 'Extra semicolon.',
-      ruleId: 'semi'
+      ruleId: 'semi',
+      type: 'error'
     }]
   }]
 
@@ -75,7 +81,32 @@ test('standard-json verbose with Windows path', function (t) {
 test('standard-json parenthesis in message', function (t) {
   t.plan(1)
   const data = fs.readFileSync(path.join(__dirname, 'data-paren-in-msg.txt'), { encoding: 'utf8' })
-  const dataJson = [{ filePath: '/someplace/index.js', messages: [{ column: '18', line: '1', message: 'Missing \'()\' invoking a constructor.', ruleId: undefined }] }]
+  const dataJson = [{ filePath: '/someplace/index.js', messages: [{ column: '18', line: '1', message: 'Missing \'()\' invoking a constructor.', ruleId: undefined, type: 'error' }] }]
+
+  const output = jsonify(data)
+
+  t.deepEqual(output, dataJson, 'JSON formatted')
+})
+
+test('standard-json warning', function (t) {
+  t.plan(1)
+  const data = fs.readFileSync(path.join(__dirname, 'data-warning.txt'), { encoding: 'utf8' })
+  const dataJson = [{
+    filePath: '/someplace/index.js',
+    messages: [{
+      line: '2',
+      column: '1',
+      message: "'hello' is not defined.",
+      ruleId: 'no-undef',
+      type: 'error'
+    }, {
+      line: '2',
+      column: '11',
+      message: 'Expected property shorthand.',
+      ruleId: 'object-shorthand',
+      type: 'warning'
+    }]
+  }]
 
   const output = jsonify(data)