Setup Push to Deploy

Since version 2.4, git has supported push to deploy. Push to deploy requires some configuration on server side git repository. Steps to take (in Ubuntu) are listed below:

1. Install the newest git.

   sudo add-apt-repository ppa:git-core/ppa
   sudo apt-get update
   sudo apt-get install git

2. Install Node.js + npm.

   curl -sL https://deb.nodesource.com/setup_4.x | sudo -E bash -
   sudo apt-get install -y nodejs

3. Install pm2 globally. PM2 is a production process manager for Node.js applications with a built-in load balancer.

   npm install -g pm2

4. Clone git repo to your home directory.

5. Add a hook named post-update in WeStudy/.git/hooks, and make it executable.

   #!/bin/sh 
   
   git read-tree -u -m HEAD
   npm install --production
   pm2 restart ~/WeStudy/bin/www

6. Overwrite WeStudy/.git/config with the following:

   [core]
   	repositoryformatversion = 0
   	filemode = true
   	bare = false
   	logallrefupdates = true
   [receive]
   	denyCurrentBranch = updateInstead
   

7. Install dependencies

   npm install

8. Start a node instance in ~/WeStudy/.

   pm2 start ./bin/www
   
   ## or to start on port 443
   sudo apt-get install authbind
   sudo touch /etc/authbind/byport/443
   sudo chown %user% /etc/authbind/byport/443
   sudo chmod 755 /etc/authbind/byport/443
   PORT=443 authbind --deep pm2 start ./bin/www -n live

Optional: Add this alias pm2='authbind --deep pm2' to bash_profile.

1. Go to your development environment, and switch to a branch you want to push.

   git push -f <remote name> <branch name>:master

2. Set up ssh control master. Add the following to ~/.ssh/config.

   Host *
   ControlMaster auto
   ControlPath ~/.ssh/controlmasters/%r@%h:%p
   

   Create the contolmaster folder mkdir ~/.ssh/controlmasters