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

#dir, #recalled_values, #repository, #revision

Instance Method Summary collapse

Methods inherited from Revision

#copy_from, #copy_to, #initialize, #inspect, #logger, logger, #to_s, #url

Constructor Details

This class inherits a constructor from Piston::Revision

Instance Method Details

#checkout_to(dir) ⇒ Object 



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

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

#each ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/piston/svn/revision.rb', line 64

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

  svn(:ls, "--recursive", @dir).split("\n").each do |relpath|
    next if relpath =~ %r{/$}
    next if relpath == '.piston.yml'
    yield relpath.chomp
  end
end

#exclude_for_diff ⇒ Object 



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# File 'lib/piston/svn/revision.rb', line 94

def exclude_for_diff
  Piston::Svn::EXCLUDE
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 82

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 56

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

#remotely_modified ⇒ Object 



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# File 'lib/piston/svn/revision.rb', line 86

def remotely_modified
  logger.debug {"Get last revision in #{repository.url}"}
  data = svn(:info, repository.url)
  info = YAML.load(data)
  latest_revision = info["Last Changed Rev"].to_i
  revision < latest_revision
end

#resolve! ⇒ Object 



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# File 'lib/piston/svn/revision.rb', line 98

def resolve!
  logger.debug {"Resolving #{@revision} to it's real value"}
  return if @revision.to_i == @revision && !@revision.blank?
  data = YAML.load(svn(:info, repository.url))
  @revision = data["Last Changed Rev"].to_i
  logger.debug {"Resolved #{@revision}"}
  @revision
end

#svn(*args) ⇒ Object 



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

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

#update_to(revision) ⇒ Object

Raises:

  • (ArgumentError) 


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

def update_to(revision)
  raise ArgumentError, "Revision #{self.revision} of #{repository.url} was never checked out -- can't update" unless @dir
  
  answer = svn(:update, "--revision", revision, @dir)
  if answer =~ /(Updated to|At) revision (\d+)[.]/ then
    if revision == "HEAD" then
      @revision = $2.to_i
    elsif revision != $2.to_i then
      raise InvalidRevision, "Did not get the revision I wanted to update.  Subversion update to #{$1}, I wanted #{revision}"
    end
  else
    raise InvalidRevision, "Could not update #{@dir} to revision #{revision} from #{repository.url}\n#{answer}"
  end
  added = relative_paths(answer.scan(/^A\s+(.*)$/).flatten)
  deleted = relative_paths(answer.scan(/^D\s+(.*)$/).flatten)
  renamed = []
  [added, deleted, renamed]
end

#validate! ⇒ Object

Raises:



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# File 'lib/piston/svn/revision.rb', line 74

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