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Ruby on Rails: Automatically push changes to Git repository before deploying with Capistrano (cap deploy)
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# I use this Capistrano task so I don't have manually run 'git push' before 'cap | |
# deploy'. It includes some error checking to make sure I'm on the right branch | |
# (master) and haven't got any uncommitted changes. | |
# Simply add the code below to config/deploy.rb, then run 'cap deploy:push' to | |
# test it, and 'cap deploy' to deploy as usual. | |
namespace :deploy do | |
desc "Push local changes to Git repository" | |
task :push do | |
# Check for any local changes that haven't been committed | |
# Use 'cap deploy:push IGNORE_DEPLOY_RB=1' to ignore changes to this file (for testing) | |
status = %x(git status --porcelain).chomp | |
if status != "" | |
if status !~ %r{^[M ][M ] config/deploy.rb$} | |
raise Capistrano::Error, "Local git repository has uncommitted changes" | |
elsif !ENV["IGNORE_DEPLOY_RB"] | |
# This is used for testing changes to this script without committing them first | |
raise Capistrano::Error, "Local git repository has uncommitted changes (set IGNORE_DEPLOY_RB=1 to ignore changes to deploy.rb)" | |
end | |
end | |
# Check we are on the master branch, so we can't forget to merge before deploying | |
branch = %x(git branch --no-color 2>/dev/null | sed -e '/^[^*]/d' -e 's/* \\(.*\\)/\\1/').chomp | |
if branch != "master" && !ENV["IGNORE_BRANCH"] | |
raise Capistrano::Error, "Not on master branch (set IGNORE_BRANCH=1 to ignore)" | |
end | |
# Push the changes | |
if ! system "git push #{fetch(:repository)} master" | |
raise Capistrano::Error, "Failed to push changes to #{fetch(:repository)}" | |
end | |
end | |
end | |
if !ENV["NO_PUSH"] | |
before "deploy", "deploy:push" | |
before "deploy:migrations", "deploy:push" | |
end |
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