Improve code quality and write tests

node_modules/codecov/lib/services/localGit.js

@@ -0,0 +1,16 @@
+var git = require('../git')
+
+module.exports = {
+  configuration: function() {
+    console.log('    No CI Detected. Using git/mercurial')
+    var branch = git.branch()
+    if (branch === 'HEAD') {
+      branch = 'master'
+    }
+    var head = git.head()
+    return {
+      commit: head,
+      branch: branch,
+    }
+  },
+}