core: add release tasks

gulpfile.js

@@ -22,12 +22,17 @@
  * SOFTWARE.
  */
 
+const fs = require('fs');
 const path = require('path');
 const gulp = require('gulp');
 const jasmine = require('gulp-jasmine');
 const babel = require('gulp-babel');
 const del = require('del');
 const eslint = require('gulp-eslint');
+const gutil = require('gulp-util');
+const git = require('gulp-git');
+const bump = require('gulp-bump');
+const runSequence = require('run-sequence');
 
 const root = path.join(__dirname);
 const config = {
@@ -67,3 +72,37 @@ gulp.task('lint', () => {
         .pipe(eslint.format())
         .pipe(eslint.failAfterError());
 });
+
+gulp.task('commit:pre', () => {
+  const dist = path.join(__dirname, 'dist');
+  const packageJson = path.join(__dirname, 'package.json');
+  return gulp.src([packageJson, dist])
+    .pipe(git.add({args: '-f'}))
+    .pipe(git.commit('release: release version'));
+});
+
+gulp.task('commit:post', () => {
+  const dist = path.join(__dirname, 'dist');
+  return gulp.src(dist)
+    .pipe(git.rm({args: '-r'}))
+    .pipe(git.commit('release: prepare next release'));
+});
+
+gulp.task('tag', (done) => {
+  const pkg = fs.readFileSync(path.join(__dirname, 'package.json'), 'utf8');
+  const version = JSON.parse(pkg).version;
+  git.tag(`v${version}`, `release: tag version ${version}`, done);
+});
+
+['major', 'minor', 'patch'].forEach((level) => {
+  gulp.task(`bump:${level}`, () => {
+    return gulp.src(path.join(__dirname, 'package.json'))
+      .pipe(bump({type: level})
+      .on('error', gutil.log))
+      .pipe(gulp.dest(__dirname));
+  });
+
+  gulp.task('release:' + level, ['build'], () => {
+    return runSequence(`bump:${level}`, 'commit:pre', 'tag', 'commit:post');
+  });
+});

package.json

@@ -7,7 +7,11 @@
     "lint": "gulp lint",
     "clean": "gulp clean",
     "build": "gulp build",
-    "test": "gulp test"
+    "test": "gulp test",
+    "release": "gulp release:minor",
+    "release:patch": "gulp release:patch",
+    "release:minor": "gulp release:minor",
+    "release:major": "gulp release:major"
   },
   "keywords": [
     "rollup",
@@ -28,9 +32,13 @@
     "eslint-config-google": "0.7.0",
     "gulp": "3.9.1",
     "gulp-babel": "6.1.2",
+    "gulp-bump": "2.5.1",
     "gulp-eslint": "3.0.1",
+    "gulp-git": "1.12.0",
     "gulp-jasmine": "2.4.2",
+    "gulp-util": "3.0.7",
     "jasmine-core": "2.5.2",
+    "run-sequence": "1.2.2",
     "tmp": "0.0.31"
   }
 }