How do I target a specific commit SHA with capistrano deploy

Question

I am wondering how I can target a specific commit SHA in Git for deployment, using Capistrano? It should be something like

cap deploy --version=<sha targeted>

Can't seem to find the answer to this after a lot of searching.

Answer 1

For Capistrano 2.9 until 3.0:

cap -S revision=80655da8d80aaaf92ce5357e7828dc09adb00993 deploy

For older versions of Capistrano, you can deploy a particular git commit/tree/branch/tag by doing this:

cap -s branch=80655da8d80aaaf92ce5357e7828dc09adb00993 deploy

In some cases there may be a need of specifying the Environment as an argument as well. production is just an example.

cap production -S revision=80655da8d80aaaf92ce5357e7828dc09adb00993 deploy

Answer 2

molf's answer didn't work for me (using capistrano 2.11.2). I had to use "revision" instead of branch, like this:

cap -S revision=80655da8d80aaaf92ce5357e7828dc09adb00993 deploy

Answer 3

Capistrano 3

In your deploy.rb or stage-specific file like config/deploy/production.rb

set :branch, ENV.fetch('REVISION', 'master')

This allows you to point to a specific git revision. It accepts a SHA but also anything that resolves to a real revision (e.g. git tag, annotated tag, or branch).

Use it on the command line by setting the REVISION environment variable, e.g.

bundle exec cap production deploy REVISION=80655da8d80aaaf92ce5357e7828dc09adb00993

bundle exec cap staging deploy REVISION=my-topic-branch

Answer 4

ask :branch, 'master'

Prompts for input but defaults to 'master' if you press return.