Class: Piston::Svn::Revision

Inherits:
Revision show all
Defined in:
lib/piston/svn/revision.rb

Defined Under Namespace

Classes: InvalidRevision, RepositoryMoved, UuidChanged

Instance Attribute Summary

Attributes inherited from Revision

#recalled_values, #repository, #revision

Instance Method Summary collapse

Methods inherited from Revision

#initialize, logger, #logger, #to_s

Constructor Details

This class inherits a constructor from Piston::Revision

Instance Method Details

#checkout_to(path) ⇒ Object 



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# File 'lib/piston/svn/revision.rb', line 23

def checkout_to(path)
  @wcpath = path.kind_of?(Pathname) ? path : Pathname.new(path)
  answer = svn(:checkout, "--revision", revision, repository.url, path)
  if answer =~ /Checked out revision (\d+)[.]/ then
    if revision == "HEAD" then
      @revision = $1.to_i
    elsif revision != $1.to_i then
      raise Failed, "Did not get the revision I wanted to checkout.  Subversion checked out #{$1}, I wanted #{revision}"
    end
  else
    raise Failed, "Could not checkout revision #{revision} from #{repository.url} to #{path}\n#{answer}"
  end
end

#client ⇒ Object 



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# File 'lib/piston/svn/revision.rb', line 11

def client
  @client ||= Piston::Svn::Client.instance
end

#copy_to(relpath, abspath) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/piston/svn/revision.rb', line 54

def copy_to(relpath, abspath)
  raise ArgumentError, "Revision #{revision} of #{repository.url} was never checked out -- can't iterate over files" unless @wcpath

  Pathname.new(abspath).dirname.mkpath
  FileUtils.cp(@wcpath + relpath, abspath)
end

#each ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/piston/svn/revision.rb', line 45

def each
  raise ArgumentError, "Revision #{revision} of #{repository.url} was never checked out -- can't iterate over files" unless @wcpath

  svn(:ls, "--recursive", @wcpath).each do |relpath|
    next if relpath =~ %r{/$}
    yield relpath.chomp
  end
end

#name ⇒ Object 



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# File 'lib/piston/svn/revision.rb', line 19

def name
  "r#{revision}"
end

#recalled_uuid ⇒ Object 



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# File 'lib/piston/svn/revision.rb', line 69

def recalled_uuid
  recalled_values[Piston::Svn::UUID]
end

#remember_values ⇒ Object

Raises:

  • (Failed) 


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# File 'lib/piston/svn/revision.rb', line 37

def remember_values
  str = svn(:info, "--revision", revision, repository.url)
  raise Failed, "Could not get 'svn info' from #{repository.url} at revision #{revision}" if str.nil? || str.chomp.strip.empty?
  info = YAML.load(str)
  { Piston::Svn::UUID => info["Repository UUID"],
    Piston::Svn::REMOTE_REV => info["Revision"]}
end

#svn(*args) ⇒ Object 



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# File 'lib/piston/svn/revision.rb', line 15

def svn(*args)
  client.svn(*args)
end

#validate! ⇒ Object

Raises:



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# File 'lib/piston/svn/revision.rb', line 61

def validate!
  data = svn(:info, "--revision", revision, repository.url)
  info = YAML.load(data)
  actual_uuid = info["Repository UUID"]
  raise RepositoryMoved, "Repository at #{repository.url} does not exist anymore:\n#{data}" if actual_uuid.blank?
  raise UuidChanged, "Expected repository at #{repository.url} to have UUID #{recalled_uuid} but found #{actual_uuid}" if recalled_uuid != actual_uuid
end