前言
- 本文参加了由公众号@若川视野 发起的每周源码共读活动,点击了解详情一起参与。
- 这是源码共读的第3期,链接:第3期 | vue 3.2 是怎么发布的 vue-release
从vue-release源码学习vue发布
- 源码地址:vue-next
vue-release地址:vue/script/release.js
准备
git clone https://github.com/vuejs/core.git
cd core
code .
打开script/release.js
准备工作
导入相关库
const args = require('minimist')(process.argv.slice(2))
const fs = require('fs')
const path = require('path')
const chalk = require('chalk')
const semver = require('semver')
const currentVersion = require('../package.json').version
const { prompt } = require('enquirer')
const execa = require('execa')
1.1 minimist 解析命令行参数选项
minimist 一个解析命令行参数的工具库
1.2 chalk
chalk 终端彩色打印
1.3 semver
版本格式:主版本号.次版本号.修订号,版本号递增规则如下:
- 主版本号:当你做了不兼容的 API 修改,
- 次版本号:当你做了向下兼容的功能性新增,
- 修订号:当你做了向下兼容的问题修正。
先行版本号及版本编译信息可以加到“主版本号.次版本号.修订号”的后面,作为延伸。
详情看这里: 语义化版本 2.0.0
1.4 enquirer 交互式输入工具
就是终端的交互式用户输入。
1.5 execa 执行命令
以写js的方式执行终端命令的工具。
检查当前版本和环境变量
npm 包版本,关于发包可以看看这篇 npm 发包 学习笔记
latest:最后版本,npm install的就是这个
beta:测试版本,一般内测使用,需要指定版本号install,例如3.1.0-beta.0
next: 先行版本,npm install foo@next安装,例如3.0.2-alpha.0
// 读取命令行是否传入版本控制参数,
const preId =
args.preid ||
(semver.prerelease(currentVersion) && semver.prerelease(currentVersion)[0])
// 测试执行不真的发布,对应执行命令 yarn run release --dry
const isDryRun = args.dry
// 跳过测试,对应执行命令 yarn run release --skipTests
const skipTests = args.skipTests
// 跳过打包,对应执行命令 yarn run release --skipBuild
const skipBuild = args.skipBuild
// 读取 packages 文件夹下所有目录,过滤掉 不是 .ts文件 结尾 并且不是 . 开头的文件夹
const packages = fs
.readdirSync(path.resolve(__dirname, '../packages'))
.filter(p => !p.endsWith('.ts') && !p.startsWith('.'))
处理版本相关内容
const skippedPackages = []
const versionIncrements = [
'patch',
'minor',
'major',
...(preId ? ['prepatch', 'preminor', 'premajor', 'prerelease'] : [])
]
const inc = i => semver.inc(currentVersion, i, preId)
inc是生成一个版本。更多可以查看semver文档
函数及命令处理
const bin = name => path.resolve(__dirname, '../node_modules/.bin/' + name)
const run = (bin, args, opts = {}) =>
execa(bin, args, { stdio: 'inherit', ...opts })
const dryRun = (bin, args, opts = {}) =>
console.log(chalk.blue(`[dryrun] ${bin} ${args.join(' ')}`), opts)
const runIfNotDry = isDryRun ? dryRun : run
const getPkgRoot = pkg => path.resolve(__dirname, '../packages/' + pkg)
const step = msg => console.log(chalk.cyan(msg))
bin 函数
获取 node_modules/.bin/ 目录下的命令。
4.2 run、dryRun、runIfNotDry 执行命令
run 真实在终端跑命令,比如 yarn build --release
dryRun 则是不跑,只是 console.log(); 打印 'yarn build --release'
runIfNotDry 如果不是空跑就执行命令。isDryRun 参数是通过控制台输入的:yarn run release --dry,就是只是打印,不执行命令,只是测试代码执行流程。
主函数
async function main() {
let targetVersion = args._[0]
if (!targetVersion) {
// no explicit version, offer suggestions
const { release } = await prompt({
type: 'select',
name: 'release',
message: 'Select release type',
choices: versionIncrements.map(i => `${i} (${inc(i)})`).concat(['custom'])
})
if (release === 'custom') {
targetVersion = (
await prompt({
type: 'input',
name: 'version',
message: 'Input custom version',
initial: currentVersion
})
).version
} else {
targetVersion = release.match(/((.*))/)[1]
}
}
if (!semver.valid(targetVersion)) {
throw new Error(`invalid target version: ${targetVersion}`)
}
const { yes } = await prompt({
type: 'confirm',
name: 'yes',
message: `Releasing v${targetVersion}. Confirm?`
})
if (!yes) {
return
}
// run tests before release
step('\nRunning tests...')
if (!skipTests && !isDryRun) {
await run(bin('jest'), ['--clearCache'])
await run('pnpm', ['test', '--', '--bail'])
} else {
console.log(`(skipped)`)
}
// update all package versions and inter-dependencies
step('\nUpdating cross dependencies...')
updateVersions(targetVersion)
// build all packages with types
step('\nBuilding all packages...')
if (!skipBuild && !isDryRun) {
await run('pnpm', ['run', 'build', '--', '--release'])
// test generated dts files
step('\nVerifying type declarations...')
await run('pnpm', ['run', 'test-dts-only'])
} else {
console.log(`(skipped)`)
}
// generate changelog
step('\nGenerating changelog...')
await run(`pnpm`, ['run', 'changelog'])
// update pnpm-lock.yaml
step('\nUpdating lockfile...')
await run(`pnpm`, ['install', '--prefer-offline'])
const { stdout } = await run('git', ['diff'], { stdio: 'pipe' })
if (stdout) {
step('\nCommitting changes...')
await runIfNotDry('git', ['add', '-A'])
await runIfNotDry('git', ['commit', '-m', `release: v${targetVersion}`])
} else {
console.log('No changes to commit.')
}
// publish packages
step('\nPublishing packages...')
for (const pkg of packages) {
await publishPackage(pkg, targetVersion, runIfNotDry)
}
// push to GitHub
step('\nPushing to GitHub...')
await runIfNotDry('git', ['tag', `v${targetVersion}`])
await runIfNotDry('git', ['push', 'origin', `refs/tags/v${targetVersion}`])
await runIfNotDry('git', ['push'])
if (isDryRun) {
console.log(`\nDry run finished - run git diff to see package changes.`)
}
if (skippedPackages.length) {
console.log(
chalk.yellow(
`The following packages are skipped and NOT published:\n- ${skippedPackages.join(
'\n- '
)}`
)
)
}
console.log()
}
整理流程如下:
- 如果命令行没有输入指定版本则询问用户要升级的版本
- 校验版本合规,并让用户确认release 消息内容
- 执行测试
- 更新所有包package.json的版本号
- 打包
- 生成变更日志
- 执行git提交(更新版本一定会更改文件)
- 执行发布
updateVersions 更新版本函数
function updateVersions(version) {
// 1. update root package.json
updatePackage(path.resolve(__dirname, '..'), version)
// 2. update all packages
packages.forEach(p => updatePackage(getPkgRoot(p), version))
}
updatePackage 更新包版本函数
function updatePackage(pkgRoot, version) {
const pkgPath = path.resolve(pkgRoot, 'package.json')
const pkg = JSON.parse(fs.readFileSync(pkgPath, 'utf-8'))
pkg.version = version
updateDeps(pkg, 'dependencies', version)
updateDeps(pkg, 'peerDependencies', version)
fs.writeFileSync(pkgPath, JSON.stringify(pkg, null, 2) + '\n')
}
updateDeps 更新依赖函数
function updateDeps(pkg, depType, version) {
const deps = pkg[depType]
if (!deps) return
Object.keys(deps).forEach(dep => {
if (
dep === 'vue' ||
(dep.startsWith('@vue') && packages.includes(dep.replace(/^@vue//, '')))
) {
console.log(
chalk.yellow(`${pkg.name} -> ${depType} -> ${dep}@${version}`)
)
deps[dep] = version
}
})
}
publishPackage 发布函数
async function publishPackage(pkgName, version, runIfNotDry) {
if (skippedPackages.includes(pkgName)) {
return
}
const pkgRoot = getPkgRoot(pkgName)
const pkgPath = path.resolve(pkgRoot, 'package.json')
const pkg = JSON.parse(fs.readFileSync(pkgPath, 'utf-8'))
if (pkg.private) {
return
}
let releaseTag = null
if (args.tag) {
releaseTag = args.tag
} else if (version.includes('alpha')) {
releaseTag = 'alpha'
} else if (version.includes('beta')) {
releaseTag = 'beta'
} else if (version.includes('rc')) {
releaseTag = 'rc'
}
// TODO use inferred release channel after official 3.0 release
// const releaseTag = semver.prerelease(version)[0] || null
step(`Publishing ${pkgName}...`)
try {
await runIfNotDry(
// note: use of yarn is intentional here as we rely on its publishing
// behavior.
'yarn',
[
'publish',
'--new-version',
version,
...(releaseTag ? ['--tag', releaseTag] : []),
'--access',
'public'
],
{
cwd: pkgRoot,
stdio: 'pipe'
}
)
console.log(chalk.green(`Successfully published ${pkgName}@${version}`))
} catch (e) {
if (e.stderr.match(/previously published/)) {
console.log(chalk.red(`Skipping already published: ${pkgName}`))
} else {
throw e
}
}
}
总结
通过本次源码学习,再次理解npm发包流程,对于版本也加深了理解,同时学习了vue自动化发包实现。