Class: Piston::Commands::Update

Inherits:
Base
  • Object
show all
Defined in:
lib/piston/commands/update.rb

Instance Attribute Summary

Attributes inherited from Base

#options

Instance Method Summary collapse

Methods inherited from Base

#force, #guess_wc, #initialize, logger, #logger, #quiet, #verbose, #working_copy!

Constructor Details

This class inherits a constructor from Piston::Commands::Base

Instance Method Details

#run(wcdir, to) ⇒ Object

wcdir is the working copy we’re going to change. to is the new target revision we want to be at after update returns.



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# File 'lib/piston/commands/update.rb', line 8

def run(wcdir, to)
  working_copy = working_copy!(wcdir)

  logger.debug {"Recalling previously saved values"}
  values = working_copy.recall
  return "#{wcdir} is locked: not updating" if values["lock"]

  repository    = working_copy.repository
  from_revision = repository.at(values["handler"])
  to_revision   = repository.at(to)
  to_revision.resolve!

  logger.debug {"Validating that #{from_revision} exists and is capable of performing the update"}
  from_revision.validate!

  logger.info {"Updating from #{from_revision} to #{to_revision}"}

  changed = working_copy.update(from_revision, to_revision, options[:lock])
  if changed then
    logger.info {"Updated #{wcdir} to #{to_revision}"}
  else
    logger.info {"Upstream #{repository} was unchanged from #{from_revision}"}
  end
end

#start(*args) ⇒ Object 



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# File 'lib/piston/commands/update.rb', line 33

def start(*args)
	args.flatten.map {|d| Pathname.new(d).expand_path}.each do |wcdir|
		begin
			run(wcdir, options[:revision] || options[:commit] || :head)
		rescue Piston::WorkingCopy::NotWorkingCopy
			puts "#{wcdir} is not a working copy"
		end
	end
end