lerna import && add 使用&&常见问题解决
使用lerna 的import 我们可以方便的将一个普通的npm 包倒入到lerna 管理的monorepo 中
环境准备
- lerna init
注意必须是一个git 项目，同时需要commit ，不然会报错
lerna init- 创建一个npm package
不再lerna 初始化的目录, 注意必须是一个git 项目，同时需要commit
yarn init -yindex.js:module.exports = { username:"dalong", age:333}- 目录结构如下
├── platform│ ├── lerna.json│ ├── package.json│ └── packages└── userlogin ├── index.js └── package.json使用import
- import
如何userlogin 不是git 项目，会有如下的错误提示，注意需要git init 并提交
cli v3.8.0lerna ERR! Error: Command failed: git log --format=%hlerna ERR! fatal: Not a git repository (or any of the parent directories): .gitlerna ERR! lerna ERR! lerna ERR! at makeError (/usr/local/lib/node_modules/lerna/node_modules/execa/index.js:174:9)lerna ERR! at Function.module.exports.sync (/usr/local/lib/node_modules/lerna/node_modules/execa/index.js:338:15)lerna ERR! at Object.execSync (/usr/local/lib/node_modules/lerna/node_modules/@lerna/child-process/index.js:22:16)lerna ERR! at ImportCommand.externalExecSync (/usr/local/lib/node_modules/lerna/node_modules/@lerna/import/index.js:137:34)lerna ERR! at ImportCommand.initialize (/usr/local/lib/node_modules/lerna/node_modules/@lerna/import/index.js:82:25)lerna ERR! at Promise.resolve.then (/usr/local/lib/node_modules/lerna/node_modules/@lerna/command/index.js:266:24)lerna ERR! at <anonymous>lerna ERR! lerna Command failed: git log --format=%hlerna ERR! lerna fatal: Not a git repository (or any of the parent directories): .gitlerna ERR! lerna 如何lerna 项目没有commit 会有如下提示,lerna 项目也必须完整的commit
Error: Command failed: git rev-parse HEADlerna ERR! fatal: ambiguous argument 'HEAD': unknown revision or path not in the working tree.lerna ERR! Use '--' to separate paths from revisions, like this:lerna ERR! 'git <command> [<revision>...] -- [<file>...]'lerna ERR! lerna ERR! HEADlerna ERR! lerna ERR! at makeError (/usr/local/lib/node_modules/lerna/node_modules/execa/index.js:174:9)lerna ERR! at Function.module.exports.sync (/usr/local/lib/node_modules/lerna/node_modules/execa/index.js:338:15)lerna ERR! at Object.execSync (/usr/local/lib/node_modules/lerna/node_modules/@lerna/child-process/index.js:22:16)lerna ERR! at ImportCommand.getCurrentSHA (/usr/local/lib/node_modules/lerna/node_modules/@lerna/import/index.js:129:34)lerna ERR! at ImportCommand.initialize (/usr/local/lib/node_modules/lerna/node_modules/@lerna/import/index.js:98:31)lerna ERR! at Promise.resolve.then (/usr/local/lib/node_modules/lerna/node_modules/@lerna/command/index.js:266:24)lerna ERR! at <anonymous>lerna ERR! lerna Command failed: git rev-parse HEADlerna ERR! lerna fatal: ambiguous argument 'HEAD': unknown revision or path not in the working tree.lerna ERR! lerna Use '--' to separate paths from revisions, like this:lerna ERR! lerna 'git <command> [<revision>...] -- [<file>...]'lerna ERR! lerna lerna ERR! lerna HEADimport 提示信息，同意即可
lerna import ../userlogin lerna notice cli v3.8.0lerna info About to import 1 commits from ../userlogin into packages/userlogin? Are you sure you want to import these commits onto the current branch? (ynH) 信息如下：
lerna notice cli v3.8.0lerna info About to import 1 commits from ../userlogin into packages/userlogin? Are you sure you want to import these commits onto the current branch? Yeslerna info 8a94131 lerna success import finished- 效果
├── lerna.json├── package.json└── packages └── userlogin ├── index.js └── package.json- 使用倒入的package
在platform 目录,按照提示操作即可
lerna create loginui cd loginui lerna add userlogin- 编写调用代码
loginui/lib/loginui.js'use strict';const userlogin = require("userlogin");module.exports = loginui;function loginui() { return userlogin;}简单测试代码loginui/__tests__/loginui.test.js```code'use strict';const loginui = require('..');console.log(loginui())添加npm script
packages/loginui/package.json
+"scripts": {+ "test": "node __tests__/loginui.test"+}- 在lerna 根项目编写npm script 调用测试
platform/package.json
+ "scripts": {+ "test":"lerna run test"+ }- 调用效果
yarn test
yarn testyarn run v1.10.1$ lerna run testlerna notice cli v3.8.0lerna info Executing command in 1 package: "npm run test"lerna info run Ran npm script 'test' in 'loginui' in 0.5s:> loginui@0.0.0 test /Users/dalong/mylearning/lerna-project/dalongdemo/platform/packages/loginui> node __tests__/loginui.test{ username: 'dalong', age: 333 }lerna success run Ran npm script 'test' in 1 package in 0.5s:lerna success - loginui✨ Done in 1.33s.说明
lerna 对于我们确认大型项目配置的一致性有很大的帮助
