feat: introduce changelog customization using config file

CHANGELOG.md

@@ -6,6 +6,7 @@
 
 ## Fixes
 
+- stop adding empty line at the end of the file on --root faee4801
 - stop adding Latest when not applicable c64fa467
 
 # 1.0.0

bin/perfekt.js

@@ -1,15 +1,24 @@
 #!/usr/bin/env node
 
 const { program } = require('commander')
-const { changelog, release, initialize } = require('../dist')
+const { changelog, release, initialize, defaultConfig } = require('../dist')
 const { version } = require('../package.json')
+const { cosmiconfig } = require('cosmiconfig')
 
 program
   .command('changelog [version]')
   .description('generate package changelog')
   .option('--write', 'write the output to file')
   .option('--root', 'generate changelog for the entire history')
-  .action((version, options) => changelog(version, options))
+  .action(async (version, options) => {
+    const cosmiConfig = (await cosmiconfig('perfekt').search()) || {}
+    const config = {
+      ...defaultConfig,
+      ...cosmiConfig.config
+    }
+
+    changelog(version, options, config)
+  })
 
 program
   .command('init')

package.json

@@ -33,6 +33,7 @@
   "license": "MIT",
   "dependencies": {
     "commander": "^5.0.0",
+    "cosmiconfig": "^6.0.0",
     "inquirer": "^7.1.0",
     "semver": "^7.3.2"
   },

src/changelog.js

@@ -7,15 +7,14 @@ import {
   groupCommits
 } from './utils'
 
-export const changelog = async (version, options) => {
+export const changelog = async (version, options, config) => {
   const latestTag = !options.root && (await getLatestTag())
   const commits = await getCommits(latestTag)
   const grouped = groupCommits(commits)
-  const changelog = generateChangelog(version, grouped)
-
+  const changelog = generateChangelog(version, grouped, config)
   if (!options || !options.write) return process.stdout.write(changelog)
 
-  const released = latestTag && (await generateReleased(latestTag))
+  const released = latestTag && (await generateReleased(latestTag, config))
 
   const newChangelog = released
     ? changelog + released

src/index.js

@@ -1,3 +1,9 @@
 export * from './changelog'
 export * from './initialize'
 export * from './release'
+
+export const defaultConfig = {
+  unreleasedFormat: '# Latest',
+  releaseFormat: '# %version%',
+  lineFormat: '- %message% %hash%'
+}