[Capistrano] Deploy by specifying a specific branch or commit

A quick memo for deploying a specific branch or commit with Capistrano's -S flag.

[Ruby] cannot load such file -- ci/reporter/rake/rspec

Rescue ci_reporter's LoadError in Rakefile so Capistrano's assets:precompile survives in production.

[Capistrano] Recipe for executing rake tasks

A Capistrano recipe for invoking rake tasks on a remote server, with a namespace-collision workaround.