print debug message when finding branch

Author: bahmutov

src/utils.js

@@ -1,5 +1,6 @@
 const Promise = require('bluebird')
 const { getGitBranch } = require('./git-api')
+const debug = require('debug')('commit-info')
 
 function firstFoundValue (keys, object = process.env) {
   const found = keys.find(key => {
@@ -20,8 +21,11 @@ function getBranch (pathToRepo) {
   ]
   const ciBranch = firstFoundValue(ciNames, process.env)
   if (ciBranch) {
+    debug('found branch %s from CI variable', ciBranch)
     return Promise.resolve(ciBranch)
   }
+  debug('could not find branch from CI variables')
+  debug('using Git tool to find branch')
   return getGitBranch(pathToRepo)
 }