Implement last commit date time (tests / docs not done)

Author: tartinesKiller

lib/index.js

@@ -4,6 +4,7 @@ var runGitCommand = require('./helpers/run-git-command')
 var COMMITHASH_COMMAND = 'rev-parse HEAD'
 var VERSION_COMMAND = 'describe --always'
 var BRANCH_COMMAND = 'rev-parse --abbrev-ref HEAD'
+var LASTCOMMITDATETIME_COMMAND = 'log -1 --format=%cI'
 
 function GitRevisionPlugin (options) {
   options = options || {}
@@ -21,6 +22,9 @@ function GitRevisionPlugin (options) {
   this.branchCommand = options.branchCommand ||
     BRANCH_COMMAND
 
+  this.lastCommitDateTimeCommand = options.lastCommitDateTimeCommand ||
+    LASTCOMMITDATETIME_COMMAND
+
   if (options.versionCommand && options.lightweightTags) {
     throw new Error('lightweightTags can\'t be used together versionCommand')
   }
@@ -43,6 +47,14 @@ GitRevisionPlugin.prototype.apply = function (compiler) {
     asset: 'VERSION'
   })
 
+  buildFile({
+    compiler: compiler,
+    gitWorkTree: this.gitWorkTree,
+    command: this.lastCommitDateTimeCommand,
+    replacePattern: /\[git-revision-last-commit-datetime\]/gi,
+    asset: 'LASTCOMMITDATETIME'
+  })
+
   if (this.createBranchFile) {
     buildFile({
       compiler: compiler,
@@ -75,4 +87,11 @@ GitRevisionPlugin.prototype.branch = function () {
   )
 }
 
+GitRevisionPlugin.prototype.lastcommitdatetime = function () {
+  return runGitCommand(
+    this.gitWorkTree,
+    this.lastCommitDateTimeCommand
+  )
+}
+
 module.exports = GitRevisionPlugin