Merge pull request gulpjs#1195 from stevemao/changelog

add generating changelog in the workflow

Author: contra

docs/recipes/bump-version-and-create-git-tag.md

@@ -1,22 +1,42 @@
 # Bump version number and create new Git tag
 
 If your project follows a semantic versioning, it may be a good idea to automatize the steps needed to do a release.
-Below you have a simple recipe that bumps the project version, commits the changes to git and creates a 
-new tag.
+Below you have a simple recipe that bumps the project version, commits the changes to git and creates a new tag.
 
 ``` javascript
 
 var gulp = require('gulp');
 var runSequence = require('run-sequence');
+var conventionalChangelog = require('conventional-changelog');
+var conventionalGithubReleaser = require('conventional-github-releaser');
 var bump = require('gulp-bump');
 var gutil = require('gulp-util');
 var git = require('gulp-git');
 var fs = require('fs');
 
+gulp.task('changelog', function () {
+  return gulp.src('CHANGELOG.md', {
+    buffer: false
+  })
+    .pipe(conventionalChangelog({
+      preset: 'angular' // Or to any other commit message convention you use.
+    }))
+    .pipe(gulp.dest('./'));
+});
+
+gulp.task('github-release', function(done) {
+  conventionalGithubReleaser({
+    type: "oauth",
+    token: '0126af95c0e2d9b0a7c78738c4c00a860b04acc8'
+  }, {
+    preset: 'angular' // Or to any other commit message convention you use.
+  }, done);
+});
+
 gulp.task('bump-version', function () {
-//Note: I have hardcoded the version change type to 'patch' but it may be a good idea to use 
-//      minimist (https://www.npmjs.com/package/minimist) to determine with a command argument whether you are doing 
-//      a 'major', 'minor' or a 'patch' change.
+// We hardcode the version change type to 'patch' but it may be a good idea to
+// use minimist (https://www.npmjs.com/package/minimist) to determine with a
+// command argument whether you are doing a 'major', 'minor' or a 'patch' change.
   return gulp.src(['./bower.json', './package.json'])
     .pipe(bump({type: "patch"}).on('error', gutil.log))
     .pipe(gulp.dest('./'));
@@ -39,19 +59,22 @@ gulp.task('create-new-tag', function (cb) {
     }
     git.push('origin', 'master', {args: '--tags'}, cb);
   });
-  
+
   function getPackageJsonVersion () {
-    //We parse the json file instead of using require because require caches multiple calls so the version number won't be updated
+    // We parse the json file instead of using require because require caches
+    // multiple calls so the version number won't be updated
     return JSON.parse(fs.readFileSync('./package.json', 'utf8')).version;
   };
 });
 
 gulp.task('release', function (callback) {
   runSequence(
     'bump-version',
+    'changelog',
     'commit-changes',
     'push-changes',
     'create-new-tag',
+    'github-release',
     function (error) {
       if (error) {
         console.log(error.message);