Tapestry

h1. Development cycle

h2. Getting the code base

 git clone git@git.clinicalfuture.com:pgp-enroll.git

h2. Writing and contributing code

Start a branch like username/master or username/rails3

 git branch example/rails3

git checkout example/rails3

Do something trivial like

* add app/views/pages/specimen_collection.html.erb

* add link to it in app/views/pages/home.html.erb

Commit it.  If you refer to the issue# in the comment, redmine will notice this and do smart things (e.g., link to the commit from the issue page).

 git add ...

git commit -m 'description of stuff (closes #123)'

Push it

 git push

Generate a pull request

 git request-pull e68ab19^ git@git.clinicalfuture.com:pgp-enroll.git e68ab19

Send the pull request to someone like Ward

h2. Merging code from other contributors/branches

Fetch latest code in other developers branches

 git fetch

List remote branches

 git branch -a

Switch to the other branch

 git checkout origin/example/rails3

(git will complain about being in a detached head state, but that's fine - just don't commit to this state)

Now look around, test

 git log

Switch to production branch (set up with @git checkout --track origin/rails3@ if you haven't already) and make sure it's up-to-date

 git checkout rails3

git pull origin rails3

See what hasn't been merged

 git cherry -v rails3 origin/example/rails3

Cherry-pick a commit

 git cherry-pick e68ab19

Or merge the entire remote tree (this will fetch and merge but not yet commit)

 git merge --no-commit origin/tomc/rails3

When you're happy, 

 git commit

Or rewind

 git reset --hard rails3

Finally, push

 git push

h2. Deploying to my-dev

Basics

 sudo gem install capistrano

Make sure "ssh www-dev.sum" puts you in root@www-dev and includes agent forwarding.

 Host www-dev.sum

  HostName www-dev

  User root

  ForwardAgent yes

  ExitOnForwardFailure yes

Check out production branch

 git checkout rails3

Deploy to www-dev

 cap deploy

Do db migrations on www-dev

 ssh www-dev sh -c 'cd /var/www/my-dev.personalgenomes.org/current && RAILS_ENV=staging rake db:migrate'