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					121 lines
				
				3.2 KiB
			
		
		
			
		
	
	
					121 lines
				
				3.2 KiB
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											4 years ago
										 
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								# Documentation
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								## Supported hooks
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								`husky` supports all Git hooks defined [here](https://git-scm.com/docs/githooks).
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								Server-side hooks (`pre-receive`, `update` and `post-receive`) aren't supported.
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								## Access Git params and stdin
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								Git hooks can get parameters via command-line arguments and stdin. `husky` makes them accessible via `HUSKY_GIT_PARAMS` and `HUSKY_GIT_STDIN` environment variables.
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								```
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								{
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								  "husky": {
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								    "hooks": {
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								      "commit-msg": "echo $HUSKY_GIT_PARAMS"
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								    }
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								  }
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								}
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								```
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								## Disable auto-install
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								If you don't want `husky` to automatically install Git hooks, simply set `HUSKY_SKIP_INSTALL` environment variable to `true`.
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								```sh
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								HUSKY_SKIP_INSTALL=true npm install
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								```
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								## Multi-package repository (monorepo)
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								If you have a multi-package repository, it's __recommended__ to use tools like [lerna](https://github.com/lerna/lerna) and have `husky` installed ONLY in the root `package.json` to act as the source of truth.
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								Generally speaking, you should AVOID defining `husky` in multiple `package.json`, as each package would overwrite previous `husky` installations.
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								```sh
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								.
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								└── root
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								    ├── .git
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								    ├── package.json 🐶 # Add husky here
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								    └── packages
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								        ├── A
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								        │   └── package.json
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								        ├── B
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								        │   └── package.json
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								        └── C
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								            └── package.json
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								```
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								```js
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								// root/package.json
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								{
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								  "private": true,
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								  "devDependencies": {
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								    "husky": "..."
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								  },
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								  "husky": {
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								    "hooks": {
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								      "pre-commit": "lerna run test"
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								    }
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								  }
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								}
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								```
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								## Node version management
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								If you're on Windows, husky will simply use the version installed globally on your system.
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								For macOS and Linux users:
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								- if you're running `git` commands in the terminal, husky will use the version defined in your shell `PATH`. So if you're a `nvm` user, husky will use the version that you've set with `nvm`.
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								- if you're using a GUI client and `nvm`, it may have a different `PATH` and not load `nvm`, in this case the highest `node` version installed by `nvm` will usually be picked. You can also check `~/.node_path` to see which version is used by GUIs and edit if you want to use something else.
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								## `~/.huskyrc`
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								`husky` will source `~/.huskyrc` file if it exists before running hook scripts. 
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								You can use it, for example, to load a node version manager. 
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								Please note, this is only useful when working with a GUI and your version manager isn't already loaded.
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								Also, unlike `project/.huskyrc` which should contain JSON, `~/.huskyrc` should contain `sh` commands.
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								```sh
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								# ~/.huskyrc
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								echo "example"
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								```
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								_This feature is experimental 🧪. Feedbacks are welcome._
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								## Debug
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								It's basic for the moment, but you can use `HUSKY_DEBUG=true` to log debug messages.
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								## Multiple commands
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								By design, `husky` will run hook scripts as a single command. Just like `scripts` defined in `package.json` are run.
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								```json
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								{
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								  "pre-commit": "cmd && cmd && cmd"
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								}
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								```
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								That said, for readability, you may want to use an array. In this case, the recommended way is to define them in a `.huskyrc.js`
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								```js
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								const tasks = arr => arr.join(' && ')
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								module.exports = {
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								  'hooks': {
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								    'pre-commit': tasks([
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								      'cmd',
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								      'cmd',
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								      'cmd'
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								    ])
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								  }
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								}
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								```
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								Tools like [npm-run-all](https://github.com/mysticatea/npm-run-all) can help too.
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