script: add script to generate the commit title for releases

script/release-commit-title.js

@@ -0,0 +1,43 @@
+#!/usr/bin/env node
+
+'use strict'
+
+const semver = require('semver')
+const utils = require('../lib/utils')
+const args = process.argv.splice(2)
+
+if (!args.length) {
+  const s = './script/release-commit-title.js'
+  console.error(`usage: ${s} <version>`)
+  console.error('or')
+  console.error(`usage: ${s} <patch|minor|major>`)
+  process.exit(1)
+}
+
+function getDate() {
+  const d = new Date()
+  const year = d.getFullYear()
+  const month = utils.pad(d.getMonth() + 1)
+  const day = utils.pad(d.getDate())
+  return `${year}-${month}-${day}`
+}
+
+const currentVersion = require('../package').version
+const numbers = ['major', 'minor', 'patch']
+
+const cmd = args.shift()
+let version
+if (~numbers.indexOf(cmd)) {
+  version = semver.inc(currentVersion, cmd)
+} else {
+  version = cmd
+}
+
+if (!semver.valid(version)) {
+  console.error('Version is not valid %s', version)
+  process.exit(1)
+}
+
+version = version.replace('v', '')
+
+console.log(`${getDate()} Version ${version} Release (Stable)`)