Class: RSCM::Accurev::API

Inherits:
Base
  • Object
show all
Defined in:
lib/rscm/scm/accurev/api.rb

Overview

RSCM implementation for Accurev (www.accurev.com).

Requires an accurev cli executable on the path (see also RSCM::Accurev::Command), and the correct environment configuration for ac server/principal/password.

Example

# Checkout a new workspace:
api = RSCM::Accurev::API.new( "./ws/proj-1", "proj", "proj-1" )
api.checkout() each do |file|
  puts "Updated #{file}..."
end

# Checkout a new (read-only) stream:
api = RSCM::Accurev::API.new( "./ws/proj-1", "proj" )
api.checkout() each {|f| ...}

# Update a checked-out workspace or copy:
api = RSCM::Accurev::API.new( "./ws/proj-1" )
api.checkout() each{|f| ... }

Constant Summary collapse

STATUSES =

status flag mappings for “stat”, “file” commands

{
  '(backed)'   => :backed,
  '(external)' => :external,
  '(modified)' => :modified,
  '(kept)'     => :kept,
  '(defunct)'  => :defunct,
  '(missing)'  => :missing,
  '(stranded)' => :stranded,
  '(overlap)'  => :overlap
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(checkout_dir = nil, backing_stream = nil, workspace_stream = nil) ⇒ API

Returns a new instance of API.



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# File 'lib/rscm/scm/accurev/api.rb', line 72

def initialize(checkout_dir=nil, backing_stream=nil, workspace_stream=nil)
  @depot = nil # will be pulled from files cmd output
  @workspace_stream = workspace_stream
  @backing_stream = backing_stream
  @checkout_dir = checkout_dir
  @overwrite = false
end

Instance Attribute Details

#backing_stream ⇒ Object

Returns the value of attribute backing_stream.



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# File 'lib/rscm/scm/accurev/api.rb', line 57

def backing_stream
  @backing_stream
end

#depot ⇒ Object

Returns the value of attribute depot.



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# File 'lib/rscm/scm/accurev/api.rb', line 54

def depot
  @depot
end

#overwrite ⇒ Object

Returns the value of attribute overwrite.



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# File 'lib/rscm/scm/accurev/api.rb', line 70

def overwrite
  @overwrite
end

#workspace_stream ⇒ Object

Returns the value of attribute workspace_stream.



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# File 'lib/rscm/scm/accurev/api.rb', line 63

def workspace_stream
  @workspace_stream
end

Instance Method Details

#ac_files(relative_path) ⇒ Object

remember: ac_files is non-recursive



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# File 'lib/rscm/scm/accurev/api.rb', line 143

def ac_files( relative_path )
  cmd = Command.instance
  ret = []
  with_working_dir( co_filepath ) do
    acresponse = cmd.accurev( "files", relative_path )
    if acresponse['element'].nil?
      return []
    end
    acresponse['element'].each do |fd|
      yield fd if block_given?
      ret << fd
    end
  end
  return ret
end

#ac_hist(from, to = Time.infinite) ⇒ Object

yeilds the TransactionData objects for the given time period (promotes only)



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# File 'lib/rscm/scm/accurev/api.rb', line 175

def ac_hist( from, to=Time.infinite )
  cmd = Command.instance
  lower = from.to_accurev
  upper = "now"
  unless to == Time.infinite
    upper = to.to_accurev
  end
  with_working_dir( self.co_filepath ) do
    acresponse = cmd.accurev( "hist",
                              "-t", "'#{upper}-#{lower}'",
                              "-k", "promote"
                             )
    ret = []
    acresponse['transaction'].each do |txn|
      ret << txn
      yield txn if block_given?
    end
    return ret
  end
end

#ac_info ⇒ Object

Performs an “accurev info” command in the workspace. Returns a map of

ac info: shows eg, backing stream but doesn’t support -fx!



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# File 'lib/rscm/scm/accurev/api.rb', line 230

def ac_info()
  co = RSCM::PathConverter.nativepath_to_filepath( @checkout_dir )
  unless File.exists?( co )
    raise AccurevException.new( "Checkout dir #{co} does not exist" )
  end
  info = {}
  with_working_dir( co ) do
    cmd = Command.instance
    io = StringIO.new( cmd.accurev_nofx( "info" ) )
    io.each_line do |line|
      next unless line =~ /\S/
      if line =~ /^(.*?):\s+(.*)$/
        info[$1] = $2
      end
    end
  end
  return info
end

#ac_keep(files = [], message = "") ⇒ Object 



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# File 'lib/rscm/scm/accurev/api.rb', line 196

def ac_keep( files=[], message="" )
  raise "XXX implement me"
end

#ac_move(current_file, new_file) ⇒ Object 



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# File 'lib/rscm/scm/accurev/api.rb', line 219

def ac_move( current_file, new_file )
  raise "XXX implement me"
end

#ac_promote(files = [], message = "") ⇒ Object 



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# File 'lib/rscm/scm/accurev/api.rb', line 200

def ac_promote( files=[], message="" )
  raise "XXX implement me"
end

#ac_purge(files = []) ⇒ Object 



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# File 'lib/rscm/scm/accurev/api.rb', line 211

def ac_purge( files=[] )
  raise "XXX implement me"
end

#ac_revert(files = []) ⇒ Object 



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# File 'lib/rscm/scm/accurev/api.rb', line 215

def ac_revert( files=[] )
  raise "XXX implement me"
end

#ac_stat(flag = "-a") ⇒ Object 



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# File 'lib/rscm/scm/accurev/api.rb', line 159

def ac_stat( flag="-a" )
  cmd = Command.instance
  ret = []
  with_working_dir( co_filepath ) do
    acresponse = cmd.accurev( "stat", flag )
    return [] if acresponse['element'].nil?
    acresponse['element'].each do |fd|
      yield fd if block_given?
      ret << fd
    end
  end
  return ret
end

#ac_update(relative_path = ".") ⇒ Object 



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# File 'lib/rscm/scm/accurev/api.rb', line 204

def ac_update( relative_path="." )
  d = accurev( "update", relative_path )
  if xxx_error_stale
    raise StaleWorkspaceError.new( "#{relative_path} is stale -- keep/anchor all changes and re-update" )
  end
end

#add(relative_filename) ⇒ Object

“Adds relative_filename to the working copy.”



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# File 'lib/rscm/scm/accurev/api.rb', line 90

def add( relative_filename )
  raise "XXX implement me"
end

#attempt_init_from_info ⇒ Object

Runs an ‘ac info` command in @checkout_dir, and tries to set @backing_stream and @workspace_stream from the output.



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# File 'lib/rscm/scm/accurev/api.rb', line 399

def attempt_init_from_info()
  if File.exists?( self.co_filepath )
    info = self.ac_info
    if info.has_key?( "Basis" )
      @backing_stream = info["Basis"]
    end
    if info.has_key?( "ws/ref" )
      @workspace_stream = info["ws/ref"]
    end
  end
end

#checkout(to_identifier = Time.infinite) ⇒ Object

“Checks out or updates contents from a central SCM to checkout_dir - a local working copy.”

“The to_identifier parameter may be optionally specified to obtain files up to a particular time or label.”

For accurev, this:

  • checks to see if @checkout_dir exists and appears checked out. If it’s already checked out, this calls update(). If @checkout_dir exists and to_identifier is given, an exception is raised.

  • otherwise, this creates a new workspace stream and populates it at @checkout_dir.

This both returns and yields a list of updated files. Only updated files are returned, not directories.

Current, ac_update returns both files and directories, including deleted files.



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# File 'lib/rscm/scm/accurev/api.rb', line 270

def checkout( to_identifier=Time.infinite )
  co = RSCM::PathConverter.nativepath_to_filepath( @checkout_dir )
  if @backing_stream.nil?
    self.attempt_init_from_info()
  end
  if @workspace_stream.nil?
    self.checkout_pop()
  else
    unless File.exists?( co )
      # create new workspace
      self.checkout_workspace()
    end
    # update workspace
    self.update( to_identifier )
  end
end

#checkout_pop ⇒ Object 



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# File 'lib/rscm/scm/accurev/api.rb', line 287

def checkout_pop()
  co = RSCM::PathConverter.nativepath_to_filepath( @checkout_dir )
  raise "A backing stream is required" if @backing_stream.nil?
  raise "A working stream may not be given" unless @working_stream.nil?
  # for `accurev pop`: remove and re-pop the checkout copy
  if File.exists?( co )
    unless @overwrite
      raise "Checkout dir #{co} already exists (@overwrite=#@overwrite)"
    end
    rm_rf( co )
  end
  mkdir(co)
  with_working_dir( co ) do
    cmd = Command.instance
    pop_out = cmd.accurev_nofx("pop",
                               "-R",
                               "-v", @backing_stream,
                               "-L", ".", ".")
    elems = []
    popio = StringIO.new( pop_out )
    popio.each_line do |line|
      if line =~ /^Populating element \/.\/(.*)$/
        loc = $1
        elems << loc
        yield loc if block_given?
      end
    end
    return elems
  end
end

#checkout_workspace ⇒ Object 



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# File 'lib/rscm/scm/accurev/api.rb', line 318

def checkout_workspace()
  co = RSCM::PathConverter.nativepath_to_filepath( @checkout_dir )
  raise "A backing stream is required" if @backing_stream.nil?
  raise "A workspace is required" if @working_stream.nil?
  if File.exist?( co ) and !@overwrite
    raise "Checkout dir #{co} already exists (@overwrite=#@overwrite)"
  end
  cmd = Command.instance
  mkws_out = cmd.accurev_nofx( "mkws", 
                              "-b", @backing_stream,
                              "-w", @workspace_stream,
                              "-l", co )
  # kinda sucks:
  if ( mkws_out =~ /already exists/ )
    raise AccurevException.new( "Failed to checkout", mkws_out )
  end
end

#co_filepath ⇒ Object

psuedo-accessor (cached)



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# File 'lib/rscm/scm/accurev/api.rb', line 388

def co_filepath
  if @co_filepath.nil?
    @co_filepath = RSCM::PathConverter.nativepath_to_filepath( @checkout_dir )
  end
  return @co_filepath
end

#edit(relative_filename) ⇒ Object 



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# File 'lib/rscm/scm/accurev/api.rb', line 94

def edit( relative_filename )
  # NOP - not required for ac
end

#map_status(status_line) ⇒ Object

Takes a status flags line (eg, “(modified)(kept)”) and returns a list of status flags.



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# File 'lib/rscm/scm/accurev/api.rb', line 413

def map_status( status_line )
  l = status_line.split( " " ).map {|x| x.trim}
end

#name ⇒ Object 



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# File 'lib/rscm/scm/accurev/api.rb', line 80

def name()
  return "Accurev"
end

#revisions(from_identifier, to_identifier = Time.infinity) ⇒ Object

“Returns a Revisions object for the period specified … (inclusive).”

list txns (promotes to bs) from hist within the period



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# File 'lib/rscm/scm/accurev/api.rb', line 102

def revisions( from_identifier, to_identifier=Time.infinity )
  revisions = RSCM::Revisions.new()
  self.ac_hist( from_identifier, to_identifier ).each do |txn|
    txnrev = RSCM::Revision.new
    txnrev.identifier = txn.id
    txnrev.developer = txn.user
    txnrev.message = txn['comment'].join("\n") unless txn['comment'].nil?
    txnrev.time = Time.at( txn.time.to_i )
    txn['version'].each do |v|
      f = RSCM::RevisionFile.new()
      f.path = v.path
      # i think to get real status, you'd need to analyze keep txns
      f.status = RSCM::RevisionFile::MODIFIED # XXX? txn.type==promote here
      f.developer = txn.user
      f.native_revision_identifier = v.real # XXX or .virtual?
      f.time = Time.at( txn.time.to_i )
      txnrev << f
    end
    revisions.add( txnrev )
  end
  return revisions
end

#supports_trigger? ⇒ Boolean

accurev actually does have triggers, but I haven’t implemented that yet

Returns:

  • (Boolean) 


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# File 'lib/rscm/scm/accurev/api.rb', line 133

def supports_trigger?
  false
end

#transactional? ⇒ Boolean

Accurev operations are atomic: returns true.

Returns:

  • (Boolean) 


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# File 'lib/rscm/scm/accurev/api.rb', line 85

def transactional?
  return true
end

#update(to_identifier = Time.infinite) ⇒ Object

Updates an existing workspace stream checked out to @checkout_dir



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# File 'lib/rscm/scm/accurev/api.rb', line 339

def update( to_identifier=Time.infinite )
  co = RSCM::PathConverter.nativepath_to_filepath( @checkout_dir )
  unless File.exists?( co )
    raise AccurevException.new( "Workspace does not exist!" )
  end
  updated = []
  with_working_dir( co ) do
    cmd = Command.instance
    acresponse = cmd.accurev( "update" )
    if acresponse.error
      if acresponse.error =~ /workspace have been modified/
        raise StaleWorkspaceException.new( "Workspace stale",
                                           acresponse.error )
      else
        # some other update problem
        raise AccurevException.new( "Error on update", acresponse.error )
      end
    end
    if acresponse['element']
      acresponse['element'].each do |up|
        # "ac update" on a new workspace yields element locations
        # with leading "/"s, which should be removed to get a proper
        # relative path:
        loc = up.location.sub( /^\//, "" )
        yield loc if block_given?
        updated << loc
      end
    end
  end
  return updated
end