feat: generatorAPI.exitLog (#935)

* feat(logger): add tag argument

* feat(generator): add `exitLog` api

* fix(generator): extract toShortId into a util function

Author: Akryum

Diff for: packages/@vue/cli-shared-utils/lib/logger.js

@@ -10,22 +10,24 @@ const format = (label, msg) => {
   }).join('\n')
 }
 
-exports.log = msg => console.log(msg || '')
+const chalkTag = msg => chalk.bgBlackBright.white.dim(` ${msg} `)
 
-exports.info = msg => {
-  console.log(format(chalk.bgBlue.black(' INFO '), msg))
+exports.log = (msg = '', tag = null) => tag ? console.log(format(chalkTag(tag), msg)) : console.log(msg)
+
+exports.info = (msg, tag = null) => {
+  console.log(format(chalk.bgBlue.black(' INFO ') + (tag ? chalkTag(tag) : ''), msg))
 }
 
-exports.done = msg => {
-  console.log(format(chalk.bgGreen.black(' DONE '), msg))
+exports.done = (msg, tag = null) => {
+  console.log(format(chalk.bgGreen.black(' DONE ') + (tag ? chalkTag(tag) : ''), msg))
 }
 
-exports.warn = msg => {
-  console.warn(format(chalk.bgYellow.black(' WARN '), chalk.yellow(msg)))
+exports.warn = (msg, tag = null) => {
+  console.warn(format(chalk.bgYellow.black(' WARN ') + (tag ? chalkTag(tag) : ''), chalk.yellow(msg)))
 }
 
-exports.error = msg => {
-  console.error(format(chalk.bgRed(' ERROR '), chalk.red(msg)))
+exports.error = (msg, tag = null) => {
+  console.error(format(chalk.bgRed(' ERROR ') + (tag ? chalkTag(tag) : ''), chalk.red(msg)))
   if (msg instanceof Error) {
     console.error(msg.stack)
   }

Diff for: packages/@vue/cli/lib/Creator.js

@@ -176,6 +176,8 @@ module.exports = class Creator {
       chalk.cyan(` ${chalk.gray('$')} ${packageManager === 'yarn' ? 'yarn serve' : 'npm run serve'}`)
     )
     log()
+
+    generator.printExitLogs()
   }
 
   async promptAndResolvePreset () {

Diff for: packages/@vue/cli/lib/Generator.js

@@ -5,6 +5,16 @@ const GeneratorAPI = require('./GeneratorAPI')
 const sortObject = require('./util/sortObject')
 const writeFileTree = require('./util/writeFileTree')
 const configTransforms = require('./util/configTransforms')
+const logger = require('@vue/cli-shared-utils/lib/logger')
+const { toShortId } = require('./util/pluginResolution')
+
+const logTypes = {
+  log: logger.log,
+  info: logger.info,
+  done: logger.done,
+  warn: logger.warn,
+  error: logger.error
+}
 
 module.exports = class Generator {
   constructor (context, pkg, plugins, completeCbs = []) {
@@ -20,6 +30,8 @@ module.exports = class Generator {
     this.files = {}
     this.fileMiddlewares = []
     this.postProcessFilesCbs = []
+    // exit messages
+    this.exitLogs = []
 
     const cliService = plugins.find(p => p.id === '@vue/cli-service')
     const rootOptions = cliService && cliService.options
@@ -135,4 +147,19 @@ module.exports = class Generator {
       return id === _id || id.replace(prefixRE, '') === _id
     })
   }
+
+  printExitLogs () {
+    if (this.exitLogs.length) {
+      this.exitLogs.forEach(({ id, msg, type }) => {
+        const shortId = toShortId(id)
+        const logFn = logTypes[type]
+        if (!logFn) {
+          logger.error(`Invalid api.exitLog type '${type}'.`, shortId)
+        } else {
+          logFn(msg, msg && shortId)
+        }
+      })
+      logger.log()
+    }
+  }
 }

Diff for: packages/@vue/cli/lib/GeneratorAPI.js

@@ -197,6 +197,16 @@ class GeneratorAPI {
   onCreateComplete (cb) {
     this.generator.completeCbs.push(cb)
   }
+
+  /**
+   * Add a message to be printed when the generator exits (after any other standard messages).
+   *
+   * @param {} msg String or value to print after the generation is completed
+   * @param {('log'|'info'|'done'|'warn'|'error')} [type='log'] Type of message
+   */
+  exitLog (msg, type = 'log') {
+    this.generator.exitLogs.push({ id: this.id, msg, type })
+  }
 }
 
 function extractCallDir () {

Diff for: packages/@vue/cli/lib/invoke.js

@@ -125,6 +125,8 @@ async function invoke (pluginName, options = {}, context = process.cwd()) {
   }
   log(`   You should review and commit the changes.`)
   log()
+
+  generator.printExitLogs()
 }
 
 module.exports = (...args) => {

Diff for: packages/@vue/cli/lib/util/pluginResolution.js

@@ -0,0 +1,7 @@
+function toShortId (id) {
+  id.replace('@vue/cli-plugin-', '').replace('vue-cli-plugin-', '')
+}
+
+module.exports = {
+  toShortId
+}