ghk

write git hooks using nodejs

installation

to use ghk, you need to install it globally

$ npm install -g ghk

as well as locally in your project directory

$ npm install --save-dev ghk

usage

cd into your git repository and run

$ ghk init

to setup default git hooks for that repository

plugins

ghk does not actually do anything rather than to setup git hooks and call the appropriate ghk plugins. its the plugins that do the actual processing

currently, these plugins are available:

• ghk-branch-nocommit
• ghk-jshint

to use a plugin, you need to install them locally in your project:

$ npm install --save-dev PACKAGENAME

and then specify in your .ghkrc file (can be located in your project's root directory or your home directory):

{
    "pre-commit": {
        "branch-nocommit": {
            "branches": ["master"]
        },
        "jshint": {}
    }
}

.ghkrc

the keys of the .ghkrc file corresponds to the names of the git hooks in which they will be executed. the available git hooks are:

• applypatch-msg
• commit-msg
• post-update
• pre-applypatch
• pre-commit
• pre-push
• pre-rebase
• prepare-commit-msg
• update

if you want a package to execute at a certain git hook, simply add it and its configuration to the appropriate key in .ghkrc. generally, the format of the .ghkrc file looks like this:

{
    "git-hook-name": {
        "package-name": {
            "package-config": "value",
            "package-config": "value"
        },
        "package-name": {}
    }
}

creating plugins

ghk plugins are just npm modules which exposes an API corresponding to the git hook names that it supports. for example, if a ghk plugin supports a pre-commit hook, its API would look like this:

exports['pre-commit'] = function() {
    // plugin implementation here
};

the plugin should return true if it succeeds. otherwise, it should return an error message explaining why it failed.