Merge pull request #85 from addaleax/branch-name-detection

Accept more valid git branch names

Author: nickmerwin

lib/detectLocalGit.js

@@ -1,7 +1,8 @@
 var fs = require('fs');
 var path = require('path');
 
-var REGEX_BRANCH = /^ref: refs\/heads\/(\w+)$/;
+// branch naming only has a few excluded characters, see git-check-ref-format(1)
+var REGEX_BRANCH = /^ref: refs\/heads\/([^?*\[\\~^:]+)$/;
 
 module.exports = function detectLocalGit() {
   var dir = process.cwd(), gitDir;