@unclepaul/allcountjs/services/git-service.js

The open source framework for rapid business application development with Node.js

//var nodegit = require('nodegit');
var childProcess = require('child_process');
var Q = require('q');

module.exports = function () {
    var service = {};

    service.checkForUpdates = function (repositoryDir) {
        return getRepositoryHeadSha(repositoryDir).then(function (currentHead) {
            return Q.nfcall(childProcess.exec, 'git pull origin master', {cwd: repositoryDir, timeout: 30000}).then(function () {
                return getRepositoryHeadSha(repositoryDir);
            }).then(function (updatedHead) {
                return currentHead !== updatedHead;
            });
        })
    };

    function getRepositoryHeadSha(repositoryDir) {
        return Q.nfcall(childProcess.exec, 'git rev-parse HEAD', {cwd: repositoryDir, timeout: 30000}).then(function (commitInfo) {
            return commitInfo[0].trim();
        });
    }

    return service;
};