Automatically install pre-commit hooks for your npm modules.

npm install pre-commit
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A simple pre-commit hook installer for git. This will ensure that your test suite passes before you can commit your changes. In addition to running your npm test it also has the option to run custom scripts that you have specified in your package.json.


It's advised to install this module as devDependency in your package.json file so it doesn't get installed on production servers. Run:

npm install --save-dev pre-commit

To install it as devDependency. When this module is installed it will override the existing pre-commit file in your .git/hooks folder. Existing pre-commit hooks will be backed up.


pre-commit will try to run your npm test command by default. It does this by running npm run test in the root of your git repository. It will only run that command if it's not the default values that are entered when you issue an npm init.

But pre-commit is not limited to just running your npm test's during the commit hook. It's also capable of running every other script that you've specified in your package.json "scripts" field. The only thing you need to do is add a pre-commit array to your package.json that specifies which scripts you want to have ran and in which order:

  "name": "437464d0899504fb6b7b",
  "version": "0.0.0",
  "description": "ERROR: No file found!",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "foo": "echo \"fooo\" && exit 0",
    "bar": "echo \"bar\" && exit 0"
  "repository": {
    "type": "git",
    "url": ""
  "pre-commit": [
  "author": "",
  "license": "BSD",
  "gitHead": "6637d0771c3a89c4a60be087859dee5130f7a104"

In the example above, it will first run: npm run foo then npm run bar and finally npm run test which will make the commit fail as it returns the error code 1.

To learn more about the scripts, please read the official npm documentation:



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