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# # Modules: Deployment
# This module is automatically loaded for all Mina projects.
# ## Settings
# Any and all of these settings can be overriden in your `deploy.rb`.
# ### releases_path
# (default: 'releases')
set_default :releases_path, "releases"
# ### shared_path
# (default: 'shared')
set_default :shared_path, "shared"
# ### current_path
# (default: 'current_path')
set_default :current_path, "current"
# ### lock_file
# Name of the file to generate while a deploy is currently ongoing.
# (default: 'deploy.lock')
set_default :lock_file, "deploy.lock"
# ### keep_releases
# Number of releases to keep when doing the `deploy:cleanup` task.
# (default: 5)
set_default :keep_releases, 5
namespace :deploy do
# ## Tasks
# ### deploy:force_unlock
# Forces a deploy unlock by deleting the lock file.
#
# $ mina deploy:force_unlock
#
# You can also combine that task with `deploy`:
#
# $ mina deploy:force_unlock deploy
desc "Forces a deploy unlock."
task :force_unlock do
queue %{echo "-----> Unlocking"}
queue echo_cmd %{rm -f "#{deploy_to}/#{lock_file}"}
end
# ### deploy:link_shared_paths
# Links the shared paths in the `shared_paths` setting.
desc "Links paths set in :shared_paths."
task :link_shared_paths do
dirs = settings.shared_paths!.map { |file| File.dirname("./#{file}") }.uniq
cmds = dirs.map do |dir|
echo_cmd %{mkdir -p "#{dir}"}
end
cmds += shared_paths.map do |file|
[
echo_cmd(%{rm -rf "./#{file}"}),
echo_cmd(%{ln -s "#{deploy_to}/#{shared_path}/#{file}" "./#{file}"})
]
end
queue %{
echo "-----> Symlinking shared paths"
#{cmds.flatten.join(" &&\n")}
}
end
# ### deploy:cleanup
# Cleans up old releases.
#
# By default, the last 5 releases are kept on each server (though you can
# change this with the keep_releases setting). All other deployed revisions
# are removed from the servers."
desc "Clean up old releases."
task :cleanup do
queue %{
echo "-----> Cleaning up old releases (keeping #{keep_releases!})"
#{echo_cmd %{cd "#{deploy_to!}/#{releases_path!}" || exit 15}}
#{echo_cmd %{count=`ls -1d [0-9]* | sort -rn | wc -l`}}
#{echo_cmd %{remove=$((count > #{keep_releases} ? count - #{keep_releases} : 0))}}
#{echo_cmd %{ls -1d [0-9]* | sort -rn | tail -n $remove | xargs rm -rf {}}}
}
end
# ### deploy:rollback
# Rollbacks the latest release.
#
# Changes the current link to previous release, and deletes the newest deploy release
# Does NOT rollback the database, use
#
# mina "rake[db:rollback]"
desc "Rollbacks the latest release"
task :rollback => :environment do
queue %[echo "-----> Rolling back to previous release for instance: #{domain}"]
# Delete existing sym link and create a new symlink pointing to the previous release
queue %[echo -n "-----> Creating new symlink from the previous release: "]
queue %[ls -Art "#{deploy_to}/releases" | sort | tail -n 2 | head -n 1]
queue! %[ls -Art "#{deploy_to}/releases" | sort | tail -n 2 | head -n 1 | xargs -I active ln -nfs "#{deploy_to}/releases/active" "#{deploy_to}/current"]
# Remove latest release folder (current release)
queue %[echo -n "-----> Deleting current release: "]
queue %[ls -Art "#{deploy_to}/releases" | sort | tail -n 1]
queue! %[ls -Art "#{deploy_to}/releases" | sort | tail -n 1 | xargs -I active rm -rf "#{deploy_to}/releases/active"]
end
end
# ### setup
# Sets up a site's directory structure.
desc "Sets up a site."
task :setup do
set_default :term_mode, :pretty
settings.deploy_to!
user = settings.user? ? "#{settings.user}" : "username"
queue %{
echo "-----> Setting up #{deploy_to}" && (
#{echo_cmd %{mkdir -p "#{deploy_to}"}} &&
#{echo_cmd %{chown -R `whoami` "#{deploy_to}"}} &&
#{echo_cmd %{chmod g+rx,u+rwx "#{deploy_to}"}} &&
#{echo_cmd %{cd "#{deploy_to}"}} &&
#{echo_cmd %{mkdir -p "#{releases_path}"}} &&
#{echo_cmd %{chmod g+rx,u+rwx "#{releases_path}"}} &&
#{echo_cmd %{mkdir -p "#{shared_path}"}} &&
#{echo_cmd %{chmod g+rx,u+rwx "#{shared_path}"}} &&
echo "" &&
#{echo_cmd %{ls -la "#{deploy_to}"}} &&
echo "" &&
echo "-----> Done."
) || (
echo "! ERROR: Setup failed."
echo "! Ensure that the path '#{deploy_to}' is accessible to the SSH user."
echo "! Try doing:"
echo "! sudo mkdir -p \\"#{deploy_to}\\" && sudo chown -R #{user} \\"#{deploy_to}\\""
)
}
end
# ### run[]
# Runs a command on a server.
#
# $ mina "run[tail -f logs.txt]"
desc "Runs a command in the server."
task :run, [:command] => [:environment] do |t, args|
command = args[:command]
unless command
puts %[You need to provide a command. Try: mina "run[ls -la]"]
exit 1
end
queue %[cd #{deploy_to!} && #{command}]
end
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