Class: Capistrano::Deploy::Strategy::RsyncWithRemoteCache

Inherits:
Remote
  • Object
show all
Defined in:
lib/capistrano/recipes/deploy/strategy/rsync_with_remote_cache.rb

Defined Under Namespace

Classes: InvalidCacheError

Constant Summary collapse

INFO_COMMANDS = 
{
  :subversion => "svn info . | sed -n \'s/URL: //p\'",
  :git        => "git config remote.origin.url",
  :mercurial  => "hg showconfig paths.default",
  :bzr        => "bzr info | grep parent | sed \'s/^.*parent branch: //\'"
}

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.default_attribute(attribute, default_value) ⇒ Object 



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# File 'lib/capistrano/recipes/deploy/strategy/rsync_with_remote_cache.rb', line 11

def self.default_attribute(attribute, default_value)
  define_method(attribute) { configuration[attribute] || default_value }
end

Instance Method Details

#check! ⇒ Object

Defines commands that should be checked for by deploy:check. These include the SCM command on the local end, and rsync on both ends. Note that the SCM command is not needed on the remote end.



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# File 'lib/capistrano/recipes/deploy/strategy/rsync_with_remote_cache.rb', line 98

def check!
  super.check do |check|
    check.local.command(source.command)
    check.local.command('rsync')
    check.remote.command('rsync')
  end
end

#copy_remote_cache ⇒ Object 



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# File 'lib/capistrano/recipes/deploy/strategy/rsync_with_remote_cache.rb', line 42

def copy_remote_cache
  run("rsync -a --delete #{repository_cache_path}/ #{configuration[:release_path]}/")
end

#deploy! ⇒ Object 



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# File 'lib/capistrano/recipes/deploy/strategy/rsync_with_remote_cache.rb', line 26

def deploy!
  update_local_cache
  update_remote_cache
  copy_remote_cache
end

#local_cache_exists? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/capistrano/recipes/deploy/strategy/rsync_with_remote_cache.rb', line 87

def local_cache_exists?
  File.exist?(local_cache_path)
end

#local_cache_path ⇒ Object 



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# File 'lib/capistrano/recipes/deploy/strategy/rsync_with_remote_cache.rb', line 58

def local_cache_path
  File.expand_path(local_cache)
end

#local_cache_valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/capistrano/recipes/deploy/strategy/rsync_with_remote_cache.rb', line 91

def local_cache_valid?
  local_cache_exists? && File.directory?(local_cache_path)
end

#mark_local_cache ⇒ Object 



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# File 'lib/capistrano/recipes/deploy/strategy/rsync_with_remote_cache.rb', line 50

def mark_local_cache
  File.open(File.join(local_cache_path, 'REVISION'), 'w') {|f| f << revision }
end

#remove_cache_if_repository_url_changed ⇒ Object 



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# File 'lib/capistrano/recipes/deploy/strategy/rsync_with_remote_cache.rb', line 79

def remove_cache_if_repository_url_changed
  remove_local_cache if repository_url_changed?
end

#remove_local_cache ⇒ Object 



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# File 'lib/capistrano/recipes/deploy/strategy/rsync_with_remote_cache.rb', line 74

def remove_local_cache
  logger.trace "repository has changed; removing old local cache from #{local_cache_path}"
  FileUtils.rm_rf(local_cache_path)
end

#repository_cache_path ⇒ Object 



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# File 'lib/capistrano/recipes/deploy/strategy/rsync_with_remote_cache.rb', line 62

def repository_cache_path
  File.join(shared_path, repository_cache)
end

#repository_url ⇒ Object 



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# File 'lib/capistrano/recipes/deploy/strategy/rsync_with_remote_cache.rb', line 66

def repository_url
  `cd #{local_cache_path} && #{INFO_COMMANDS[configuration[:scm]]}`.strip
end

#repository_url_changed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/capistrano/recipes/deploy/strategy/rsync_with_remote_cache.rb', line 70

def repository_url_changed?
  repository_url != configuration[:repository]
end

#rsync_command_for(server) ⇒ Object 



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# File 'lib/capistrano/recipes/deploy/strategy/rsync_with_remote_cache.rb', line 46

def rsync_command_for(server)
  "rsync #{rsync_options} --rsh='ssh -p #{ssh_port(server)}' #{local_cache_path}/ #{rsync_host(server)}:#{repository_cache_path}/"
end

#rsync_host(server) ⇒ Object 



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# File 'lib/capistrano/recipes/deploy/strategy/rsync_with_remote_cache.rb', line 83

def rsync_host(server)
  configuration[:user] ? "#{configuration[:user]}@#{server.host}" : server.host
end

#ssh_port(server) ⇒ Object 



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# File 'lib/capistrano/recipes/deploy/strategy/rsync_with_remote_cache.rb', line 54

def ssh_port(server)
  server.port || ssh_options[:port] || 22
end

#update_local_cache ⇒ Object 



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# File 'lib/capistrano/recipes/deploy/strategy/rsync_with_remote_cache.rb', line 32

def update_local_cache
  system(command)
  mark_local_cache
end

#update_remote_cache ⇒ Object 



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# File 'lib/capistrano/recipes/deploy/strategy/rsync_with_remote_cache.rb', line 37

def update_remote_cache
  finder_options = {:except => { :no_release => true }}
  find_servers(finder_options).each {|s| system(rsync_command_for(s)) }
end