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desc "Deploy."
task :deploy => %w(deploy:before deploy:push deploy:after)
desc "Set up deployment prerequisites."
task "deploy:newb" do
%w(heroku taps).each do |gem|
puts "sudo gem install #{gem}" unless Gem.available? gem
end
Deploy::ENVIRONMENTS.each do |branch, env|
unless /^#{env}/ =~ `git remote`
puts "git remote add #{env} git@heroku.com:myapp-#{env}.git"
puts "git fetch #{env}"
unless /#{branch}$/ =~ `git branch`
puts "git branch #{branch} origin/#{env}"
end
end
end
end
desc "Show undeployed changes."
task "deploy:pending" do
env = Deploy.env
source = "origin/#{env}"
target = "#{env}/master"
cmd = "git log #{target}..#{source} '--format=tformat:%s|||%aN|||%aE'"
changes = `#{cmd}`.split("\n").map do |line|
msg, author, email = line.split("|||").map { |e| e.empty? ? nil : e }
msg << " [#{author || email}]" unless Deploy::PEOPLE.include? author
msg
end
last = `git show --pretty=%cr #{target}`.split("\n").first
puts "Last deploy to #{env} was #{last || 'never'}."
unless changes.empty?
puts
changes.each { |change| puts "* #{change}" }
puts
end
end
# The push.
task("deploy:push") { sh "git push #{Deploy.env} #{Deploy.env}:master" }
# Hooks. Attach extra behavior with these.
task "deploy:before" => "deploy:pending"
task "deploy:after"
module Deploy
# A map of local branches to deployment environments.
ENVIRONMENTS = { "master" => "production", "next" => "next" }
# The folks who are most likely to be committing. People who
# aren't in this list get their names next to their commit
# messages, so I can see what contractors are doing.
PEOPLE = ["John Barnette"]
# What's the current deployment environment?
def self.env
return @env if defined? @env
unless /^\* (.*)$/ =~ `git branch`
abort "I can't figure out which branch you're on."
end
branch = $1
unless Deploy::ENVIRONMENTS.include? branch
abort "I don't know how to deploy '#{branch}'."
end
@env = ENVIRONMENTS[branch]
end
end
# Hoptoad integration example.
task "deploy:before" => "isolate:dotgems" do
if /\.gems/ =~ `git status`
abort "Changed gems. Commit '.gems' and deploy again."
end
ENV["TO"] = Deploy.env
end
task "deploy:after" => "hoptoad:deploy"
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