Function setupHook

lib/setup.js:80–125

(hookName, install)

}

function setupHook(hookName, install) {
	var hook = path.resolve(hooks, hookName);
	var hookFile = path.relative(hooks, "./bin/"+hookName);
	var hookExists = fs.existsSync(hook);
	var _isOtherHook;
	function isOtherHook() {
	    if (typeof(_isOtherHook) == 'undefined') {
	        var content = fs.readFileSync(hook, { encoding: 'utf8' });
	        _isOtherHook = !/clns\/node-commit-msg/.test(content);
	    }
	    return _isOtherHook;
	}

	// Uninstall hook

	if (uninstall) {
	    if (hookExists && !isOtherHook()) {
	        try {
	            fs.unlinkSync(hook);
	            console.log('Uninstall hook at ' + hook);
	        } catch(e) {
	            throw e;
	        }
	    }
	    return;
	}

	// Install hook

	if (install) {
		if (hookExists && isOtherHook()) {
		    console.error('A hook already exists at %s.\n' +
		      'Remove it and re-install the module again to install the hook.',
			  hook);
		} else if (!hookExists) {
		    try {
		        fs.symlinkSync(hookFile, hook);
		        console.log('Install hook at ' + hook);
		    } catch(e) {
		        throw e;
		    }
		}
	} else {
		console.log('Skip \'%s\' hook', hookName);
	}
}

setupHook('commit-msg', !noClientHook);
setupHook('update', !noServerHook);