使用lerna 的import 我們可以方便的將一個普通的npm 包倒入到lerna 管理的monorepo 中
環境准備
- lerna init
注意必須是一個git 項目，同時需要commit ，不然會報錯
lerna init
- 創建一個npm package
不再lerna 初始化的目錄, 注意必須是一個git 項目，同時需要commit
yarn init -y
index.js:
module.exports = {
username:"dalong",
age:333
}
- 目錄結構如下
├── platform
│ ├── lerna.json
│ ├── package.json
│ └── packages
└── userlogin
├── index.js
└── package.json
使用import
- import
如何userlogin 不是git 項目，會有如下的錯誤提示，注意需要git init 並提交
cli v3.8.0
lerna ERR! Error: Command failed: git log --format=%h
lerna ERR! fatal: Not a git repository (or any of the parent directories): .git
lerna 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=%h
lerna ERR! lerna fatal: Not a git repository (or any of the parent directories): .git
lerna ERR! lerna
如何lerna 項目沒有commit 會有如下提示,lerna 項目也必須完整的commit
Error: Command failed: git rev-parse HEAD
lerna 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! HEAD
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.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 HEAD
lerna 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 HEAD
import 提示信息，同意即可
lerna import ../userlogin
lerna notice cli v3.8.0
lerna 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 v3.8.0
lerna info About to import 1 commits from ../userlogin into packages/userlogin
? Are you sure you want to import these commits onto the current branch? Yes
lerna 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 目錄,按照提示操作即可
lerna create loginui
cd loginui
lerna add userlogin
- 編寫調用代碼
loginui/lib/loginui.js
'use strict';
const userlogin = require("userlogin");
module.exports = loginui;
function loginui() {
return userlogin;
}
簡單測試代碼
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 根項目編寫npm script 調用測試
platform/package.json
+ "scripts": {
+ "test":"lerna run test"
+ }
- 調用效果
yarn test
yarn test
yarn run v1.10.1
$ lerna run test
lerna notice cli v3.8.0
lerna 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.
說明
lerna 對於我們確認大型項目配置的一致性有很大的幫助