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deploy.rake
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deploy.rake
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namespace :deploy do
task :starting do
invoke 'deploy:check'
invoke 'deploy:set_previous_revision'
end
task :updating => :new_release_path do
invoke "#{scm}:create_release"
invoke "deploy:set_current_revision"
invoke 'deploy:symlink:shared'
end
task :reverting do
invoke 'deploy:revert_release'
end
task :publishing do
invoke 'deploy:symlink:release'
end
task :finishing do
invoke 'deploy:cleanup'
end
task :finishing_rollback do
invoke 'deploy:cleanup_rollback'
end
task :finished do
invoke 'deploy:log_revision'
end
desc 'Check required files and directories exist'
task :check do
invoke "#{scm}:check"
invoke 'deploy:check:directories'
invoke 'deploy:check:linked_dirs'
invoke 'deploy:check:make_linked_dirs'
invoke 'deploy:check:linked_files'
end
namespace :check do
desc 'Check shared and release directories exist'
task :directories do
on release_roles :all do
execute :mkdir, '-p', shared_path, releases_path
end
end
desc 'Check directories to be linked exist in shared'
task :linked_dirs do
next unless any? :linked_dirs
on release_roles :all do
execute :mkdir, '-p', linked_dirs(shared_path)
end
end
desc 'Check directories of files to be linked exist in shared'
task :make_linked_dirs do
next unless any? :linked_files
on release_roles :all do |host|
execute :mkdir, '-p', linked_file_dirs(shared_path)
end
end
desc 'Check files to be linked exist in shared'
task :linked_files do
next unless any? :linked_files
on release_roles :all do |host|
linked_files(shared_path).each do |file|
unless test "[ -f #{file} ]"
error t(:linked_file_does_not_exist, file: file, host: host)
exit 1
end
end
end
end
end
namespace :symlink do
desc 'Symlink release to current'
task :release do
on release_roles :all do
tmp_current_path = release_path.parent.join(current_path.basename)
execute :ln, '-s', release_path, tmp_current_path
execute :mv, tmp_current_path, current_path.parent
end
end
desc 'Symlink files and directories from shared to release'
task :shared do
invoke 'deploy:symlink:linked_files'
invoke 'deploy:symlink:linked_dirs'
end
desc 'Symlink linked directories'
task :linked_dirs do
next unless any? :linked_dirs
on release_roles :all do
execute :mkdir, '-p', linked_dir_parents(release_path)
fetch(:linked_dirs).each do |dir|
target = release_path.join(dir)
source = shared_path.join(dir)
unless test "[ -L #{target} ]"
if test "[ -d #{target} ]"
execute :rm, '-rf', target
end
execute :ln, '-s', source, target
end
end
end
end
desc 'Symlink linked files'
task :linked_files do
next unless any? :linked_files
on release_roles :all do
execute :mkdir, '-p', linked_file_dirs(release_path)
fetch(:linked_files).each do |file|
target = release_path.join(file)
source = shared_path.join(file)
unless test "[ -L #{target} ]"
if test "[ -f #{target} ]"
execute :rm, target
end
execute :ln, '-s', source, target
end
end
end
end
end
desc 'Clean up old releases'
task :cleanup do
on release_roles :all do |host|
releases = capture(:ls, '-xtr', releases_path).split
if releases.count >= fetch(:keep_releases)
info t(:keeping_releases, host: host.to_s, keep_releases: fetch(:keep_releases), releases: releases.count)
directories = (releases - releases.last(fetch(:keep_releases)))
if directories.any?
directories_str = directories.map do |release|
releases_path.join(release)
end.join(" ")
execute :rm, '-rf', directories_str
else
info t(:no_old_releases, host: host.to_s, keep_releases: fetch(:keep_releases))
end
end
end
end
desc 'Remove and archive rolled-back release.'
task :cleanup_rollback do
on release_roles(:all) do
last_release = capture(:ls, '-xt', releases_path).split.first
last_release_path = releases_path.join(last_release)
if test "[ `readlink #{current_path}` != #{last_release_path} ]"
execute :tar, '-czf',
deploy_path.join("rolled-back-release-#{last_release}.tar.gz"),
last_release_path
execute :rm, '-rf', last_release_path
else
debug 'Last release is the current release, skip cleanup_rollback.'
end
end
end
desc 'Log details of the deploy'
task :log_revision do
on release_roles(:all) do
within releases_path do
execute %{echo "#{revision_log_message}" >> #{revision_log}}
end
end
end
desc 'Revert to previous release timestamp'
task :revert_release => :rollback_release_path do
on release_roles(:all) do
set(:revision_log_message, rollback_log_message)
end
end
task :new_release_path do
set_release_path
end
task :rollback_release_path do
on release_roles(:all) do
releases = capture(:ls, '-xt', releases_path).split
if releases.count < 2
error t(:cannot_rollback)
exit 1
end
last_release = releases[1]
set_release_path(last_release)
set(:rollback_timestamp, last_release)
end
end
desc "Place a REVISION file with the current revision SHA in the current release path"
task :set_current_revision do
invoke "#{scm}:set_current_revision"
on release_roles(:all) do
within release_path do
execute :echo, "\"#{fetch(:current_revision)}\" >> REVISION"
end
end
end
task :set_previous_revision do
on release_roles(:all) do
target = release_path.join('REVISION')
if test "[ -f #{target} ]"
set(:previous_revision, capture(:cat, target, '2>/dev/null'))
end
end
end
task :restart
task :failed
end