chore(package): re-init package with commitizen and standard-release

node_modules/standard-version/lib/lifecycles/changelog.js

@@ -0,0 +1,62 @@
+const accessSync = require('fs-access').sync
+const chalk = require('chalk')
+const checkpoint = require('../checkpoint')
+const conventionalChangelog = require('conventional-changelog')
+const fs = require('fs')
+const runLifecycleScript = require('../run-lifecycle-script')
+const writeFile = require('../write-file')
+
+module.exports = function (args, newVersion) {
+  if (args.skip.changelog) return Promise.resolve()
+  return runLifecycleScript(args, 'prechangelog')
+    .then(() => {
+      return outputChangelog(args, newVersion)
+    })
+    .then(() => {
+      return runLifecycleScript(args, 'postchangelog')
+    })
+}
+
+function outputChangelog (args, newVersion) {
+  return new Promise((resolve, reject) => {
+    createIfMissing(args)
+    var header = '# Change Log\n\nAll notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.\n'
+    var oldContent = args.dryRun ? '' : fs.readFileSync(args.infile, 'utf-8')
+    // find the position of the last release and remove header:
+    if (oldContent.indexOf('<a name=') !== -1) {
+      oldContent = oldContent.substring(oldContent.indexOf('<a name='))
+    }
+    var content = ''
+    var context
+    if (args.dryRun) context = {version: newVersion}
+    var changelogStream = conventionalChangelog({
+      preset: 'angular'
+    }, context, {merges: null})
+      .on('error', function (err) {
+        return reject(err)
+      })
+
+    changelogStream.on('data', function (buffer) {
+      content += buffer.toString()
+    })
+
+    changelogStream.on('end', function () {
+      checkpoint(args, 'outputting changes to %s', [args.infile])
+      if (args.dryRun) console.info(`\n---\n${chalk.gray(content.trim())}\n---\n`)
+      else writeFile(args, args.infile, header + '\n' + (content + oldContent).replace(/\n+$/, '\n'))
+      return resolve()
+    })
+  })
+}
+
+function createIfMissing (args) {
+  try {
+    accessSync(args.infile, fs.F_OK)
+  } catch (err) {
+    if (err.code === 'ENOENT') {
+      checkpoint(args, 'created %s', [args.infile])
+      args.outputUnreleased = true
+      writeFile(args, args.infile, '\n')
+    }
+  }
+}