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	git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@5436 e93f8b46-1217-0410-a6f0-8f06a7374b81
		
			
				
	
	
		
			456 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			456 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| # redMine - project management software
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| # Copyright (C) 2006-2007  Jean-Philippe Lang
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| #
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| # This program is free software; you can redistribute it and/or
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| # modify it under the terms of the GNU General Public License
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| # as published by the Free Software Foundation; either version 2
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| # of the License, or (at your option) any later version.
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| #
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| # This program is distributed in the hope that it will be useful,
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| # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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| # GNU General Public License for more details.
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| #
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| # You should have received a copy of the GNU General Public License
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| # along with this program; if not, write to the Free Software
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| # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
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| 
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| require 'redmine/scm/adapters/abstract_adapter'
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| 
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| module Redmine
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|   module Scm
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|     module Adapters
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|       class CvsAdapter < AbstractAdapter
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| 
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|         # CVS executable name
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|         CVS_BIN = Redmine::Configuration['scm_cvs_command'] || "cvs"
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| 
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|         # raised if scm command exited with error, e.g. unknown revision.
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|         class ScmCommandAborted < CommandFailed; end
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| 
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|         class << self
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|           def client_command
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|             @@bin    ||= CVS_BIN
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|           end
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| 
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|           def sq_bin
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|             @@sq_bin ||= shell_quote(CVS_BIN)
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|           end
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| 
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|           def client_version
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|             @@client_version ||= (scm_command_version || [])
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|           end
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| 
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|           def client_available
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|             client_version_above?([1, 12])
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|           end
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| 
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|           def scm_command_version
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|             scm_version = scm_version_from_command_line.dup
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|             if scm_version.respond_to?(:force_encoding)
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|               scm_version.force_encoding('ASCII-8BIT')
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|             end
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|             if m = scm_version.match(%r{\A(.*?)((\d+\.)+\d+)}m)
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|               m[2].scan(%r{\d+}).collect(&:to_i)
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|             end
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|           end
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| 
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|           def scm_version_from_command_line
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|             shellout("#{sq_bin} --version") { |io| io.read }.to_s
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|           end
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|         end
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| 
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|         # Guidelines for the input:
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|         #  url      -> the project-path, relative to the cvsroot (eg. module name)
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|         #  root_url -> the good old, sometimes damned, CVSROOT
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|         #  login    -> unnecessary
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|         #  password -> unnecessary too
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|         def initialize(url, root_url=nil, login=nil, password=nil,
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|                        path_encoding=nil)
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|           @url      = url
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|           # TODO: better Exception here (IllegalArgumentException)
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|           raise CommandFailed if root_url.blank?
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|           @root_url  = root_url
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| 
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|           # These are unused.
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|           @login    = login if login && !login.empty?
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|           @password = (password || "") if @login
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|         end
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| 
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|         def root_url
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|           @root_url
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|         end
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| 
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|         def url
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|           @url
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|         end
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| 
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|         def info
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|           logger.debug "<cvs> info"
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|           Info.new({:root_url => @root_url, :lastrev => nil})
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|         end
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| 
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|         def get_previous_revision(revision)
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|           CvsRevisionHelper.new(revision).prevRev
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|         end
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| 
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|         # Returns an Entries collection
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|         # or nil if the given path doesn't exist in the repository
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|         # this method is used by the repository-browser (aka LIST)
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|         def entries(path=nil, identifier=nil)
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|           logger.debug "<cvs> entries '#{path}' with identifier '#{identifier}'"
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|           path_with_project="#{url}#{with_leading_slash(path)}"
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|           entries = Entries.new
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|           cmd_args = %w|-q rls -e|
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|           cmd_args << "-D" << time_to_cvstime_rlog(identifier) if identifier
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|           cmd_args << path_with_project
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|           scm_cmd(*cmd_args) do |io|
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|             io.each_line() do |line|
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|               fields = line.chop.split('/',-1)
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|               logger.debug(">>InspectLine #{fields.inspect}")
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|               if fields[0]!="D"
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|                 time = nil
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|                 # Thu Dec 13 16:27:22 2007
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|                 time_l = fields[-3].split(' ')
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|                 if time_l.size == 5 && time_l[4].length == 4
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|                   begin
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|                     time = Time.parse(
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|                              "#{time_l[1]} #{time_l[2]} #{time_l[3]} GMT #{time_l[4]}")
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|                   rescue
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|                   end
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|                 end
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|                 entries << Entry.new(
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|                  {
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|                   :name => fields[-5],
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|                   #:path => fields[-4].include?(path)?fields[-4]:(path + "/"+ fields[-4]),
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|                   :path => "#{path}/#{fields[-5]}",
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|                   :kind => 'file',
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|                   :size => nil,
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|                   :lastrev => Revision.new(
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|                       {
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|                         :revision => fields[-4],
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|                         :name     => fields[-4],
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|                         :time     => time,
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|                         :author   => ''
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|                       })
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|                   })
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|               else
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|                 entries << Entry.new(
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|                  {
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|                   :name    => fields[1],
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|                   :path    => "#{path}/#{fields[1]}",
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|                   :kind    => 'dir',
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|                   :size    => nil,
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|                   :lastrev => nil
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|                  })
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|               end
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|             end
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|           end
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|           entries.sort_by_name
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|         rescue ScmCommandAborted
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|           nil
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|         end
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| 
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|         STARTLOG="----------------------------"
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|         ENDLOG  ="============================================================================="
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| 
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|         # Returns all revisions found between identifier_from and identifier_to
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|         # in the repository. both identifier have to be dates or nil.
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|         # these method returns nothing but yield every result in block
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|         def revisions(path=nil, identifier_from=nil, identifier_to=nil, options={}, &block)
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|           logger.debug "<cvs> revisions path:" +
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|               "'#{path}',identifier_from #{identifier_from}, identifier_to #{identifier_to}"
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|           path_with_project = "#{url}#{with_leading_slash(path)}"
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|           cmd_args = %w|-q rlog|
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|           cmd_args << "-d" << ">#{time_to_cvstime_rlog(identifier_from)}" if identifier_from
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|           cmd_args << path_with_project
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|           scm_cmd(*cmd_args) do |io|
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|             state      = "entry_start"
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|             commit_log = String.new
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|             revision   = nil
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|             date       = nil
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|             author     = nil
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|             entry_path = nil
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|             entry_name = nil
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|             file_state = nil
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|             branch_map = nil
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|             io.each_line() do |line|
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|               if state != "revision" && /^#{ENDLOG}/ =~ line
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|                 commit_log = String.new
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|                 revision   = nil
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|                 state      = "entry_start"
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|               end
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|               if state=="entry_start"
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|                 branch_map=Hash.new
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|                 if /^RCS file: #{Regexp.escape(root_url_path)}\/#{Regexp.escape(path_with_project)}(.+),v$/ =~ line
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|                   entry_path = normalize_cvs_path($1)
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|                   entry_name = normalize_path(File.basename($1))
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|                   logger.debug("Path #{entry_path} <=> Name #{entry_name}")
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|                 elsif /^head: (.+)$/ =~ line
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|                   entry_headRev = $1 #unless entry.nil?
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|                 elsif /^symbolic names:/ =~ line
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|                   state = "symbolic" #unless entry.nil?
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|                 elsif /^#{STARTLOG}/ =~ line
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|                   commit_log = String.new
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|                   state      = "revision"
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|                 end
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|                 next
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|               elsif state=="symbolic"
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|                 if /^(.*):\s(.*)/ =~ (line.strip)
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|                   branch_map[$1]=$2
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|                 else
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|                   state="tags"
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|                   next
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|                 end
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|               elsif state=="tags"
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|                 if /^#{STARTLOG}/ =~ line
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|                   commit_log = ""
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|                   state="revision"
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|                 elsif /^#{ENDLOG}/ =~ line
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|                   state="head"
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|                 end
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|                 next
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|               elsif state=="revision"
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|                 if /^#{ENDLOG}/ =~ line || /^#{STARTLOG}/ =~ line
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|                   if revision
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|                     revHelper = CvsRevisionHelper.new(revision)
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|                     revBranch = "HEAD"
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|                     branch_map.each() do |branch_name, branch_point|
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|                       if revHelper.is_in_branch_with_symbol(branch_point)
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|                         revBranch=branch_name
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|                       end
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|                     end
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|                     logger.debug("********** YIELD Revision #{revision}::#{revBranch}")
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|                     yield Revision.new({
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|                       :time    => date,
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|                       :author  => author,
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|                       :message => commit_log.chomp,
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|                       :paths => [{
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|                         :revision => revision,
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|                         :branch   => revBranch,
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|                         :path     => entry_path,
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|                         :name     => entry_name,
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|                         :kind     => 'file',
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|                         :action   => file_state
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|                       }]
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|                     })
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|                   end
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|                   commit_log = String.new
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|                   revision   = nil
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|                   if /^#{ENDLOG}/ =~ line
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|                     state = "entry_start"
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|                   end
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|                   next
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|                 end
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| 
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|                 if /^branches: (.+)$/ =~ line
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|                   # TODO: version.branch = $1
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|                 elsif /^revision (\d+(?:\.\d+)+).*$/ =~ line
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|                   revision = $1
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|                 elsif /^date:\s+(\d+.\d+.\d+\s+\d+:\d+:\d+)/ =~ line
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|                   date       = Time.parse($1)
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|                   author     = /author: ([^;]+)/.match(line)[1]
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|                   file_state = /state: ([^;]+)/.match(line)[1]
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|                   # TODO:
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|                   #    linechanges only available in CVS....
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|                   #    maybe a feature our SVN implementation.
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|                   #    I'm sure, they are useful for stats or something else
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|                   #                linechanges =/lines: \+(\d+) -(\d+)/.match(line)
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|                   #                unless linechanges.nil?
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|                   #                  version.line_plus  = linechanges[1]
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|                   #                  version.line_minus = linechanges[2]
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|                   #                else
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|                   #                  version.line_plus  = 0
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|                   #                  version.line_minus = 0
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|                   #                end
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|                 else
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|                   commit_log << line unless line =~ /^\*\*\* empty log message \*\*\*/
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|                 end
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|               end
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|             end
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|           end
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|         rescue ScmCommandAborted
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|           Revisions.new
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|         end
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| 
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|         def diff(path, identifier_from, identifier_to=nil)
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|           logger.debug "<cvs> diff path:'#{path}'" +
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|               ",identifier_from #{identifier_from}, identifier_to #{identifier_to}"
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|           path_with_project="#{url}#{with_leading_slash(path)}"
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|           cmd_args = %w|rdiff -u|
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|           cmd_args << "-r#{identifier_to}"
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|           cmd_args << "-r#{identifier_from}"
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|           cmd_args << path_with_project
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|           diff = []
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|           scm_cmd(*cmd_args) do |io|
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|             io.each_line do |line|
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|               diff << line
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|             end
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|           end
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|           diff
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|         rescue ScmCommandAborted
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|           nil
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|         end
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| 
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|         def cat(path, identifier=nil)
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|           identifier = (identifier) ? identifier : "HEAD"
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|           logger.debug "<cvs> cat path:'#{path}',identifier #{identifier}"
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|           path_with_project="#{url}#{with_leading_slash(path)}"
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|           cmd_args = %w|-q co|
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|           cmd_args << "-D" << "#{time_to_cvstime(identifier)}" if identifier
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|           cmd_args << "-p" << path_with_project
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|           cat = nil
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|           scm_cmd(*cmd_args) do |io|
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|             io.binmode
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|             cat = io.read
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|           end
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|           cat
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|         rescue ScmCommandAborted
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|           nil
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|         end
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| 
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|         def annotate(path, identifier=nil)
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|           identifier = (identifier) ? identifier : "HEAD"
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|           logger.debug "<cvs> annotate path:'#{path}',identifier #{identifier}"
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|           path_with_project="#{url}#{with_leading_slash(path)}"
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|           cmd_args = %w|rannotate|
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|           cmd_args << "-D" << "#{time_to_cvstime(identifier)}" if identifier
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|           cmd_args << path_with_project
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|           blame = Annotate.new
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|           scm_cmd(*cmd_args) do |io|
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|             io.each_line do |line|
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|               next unless line =~ %r{^([\d\.]+)\s+\(([^\)]+)\s+[^\)]+\):\s(.*)$}
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|               blame.add_line(
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|                   $3.rstrip,
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|                   Revision.new(
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|                     :revision   => $1,
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|                     :identifier => nil,
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|                     :author     => $2.strip
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|                     ))
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|             end
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|           end
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|           blame
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|         rescue ScmCommandAborted
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|           Annotate.new
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|         end
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| 
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|         private
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| 
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|         # Returns the root url without the connexion string
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|         # :pserver:anonymous@foo.bar:/path => /path
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|         # :ext:cvsservername:/path => /path
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|         def root_url_path
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|           root_url.to_s.gsub(/^:.+:\d*/, '')
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|         end
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| 
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|         # convert a date/time into the CVS-format
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|         def time_to_cvstime(time)
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|           return nil if time.nil?
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|           return Time.now if time == 'HEAD'
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| 
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|           unless time.kind_of? Time
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|             time = Time.parse(time)
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|           end
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|           return time.strftime("%Y-%m-%d %H:%M:%S")
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|         end
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| 
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|         def time_to_cvstime_rlog(time)
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|           return nil if time.nil?
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|           t1 = time.clone.localtime
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|           return t1.strftime("%Y-%m-%d %H:%M:%S")
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|         end
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| 
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|         def normalize_cvs_path(path)
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|           normalize_path(path.gsub(/Attic\//,''))
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|         end
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| 
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|         def normalize_path(path)
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|           path.sub(/^(\/)*(.*)/,'\2').sub(/(.*)(,v)+/,'\1')
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|         end
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| 
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|         class Revision < Redmine::Scm::Adapters::Revision
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|           # Returns the readable identifier
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|           def format_identifier
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|             revision.to_s
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|           end
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|         end
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| 
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|         def scm_cmd(*args, &block)
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|           full_args = [CVS_BIN, '-d', root_url]
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|           full_args += args
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|           ret = shellout(full_args.map { |e| shell_quote e.to_s }.join(' '), &block)
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|           if $? && $?.exitstatus != 0
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|             raise ScmCommandAborted, "cvs exited with non-zero status: #{$?.exitstatus}"
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|           end
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|           ret
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|         end
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|         private :scm_cmd
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|       end
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| 
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|       class CvsRevisionHelper
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|         attr_accessor :complete_rev, :revision, :base, :branchid
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| 
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|         def initialize(complete_rev)
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|           @complete_rev = complete_rev
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|           parseRevision()
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|         end
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| 
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|         def branchPoint
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|           return @base
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|         end
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| 
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|         def branchVersion
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|           if isBranchRevision
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|             return @base+"."+@branchid
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|           end
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|           return @base
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|         end
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| 
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|         def isBranchRevision
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|           !@branchid.nil?
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|         end
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| 
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|         def prevRev
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|           unless @revision == 0
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|             return buildRevision( @revision - 1 )
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|           end
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|           return buildRevision( @revision )
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|         end
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| 
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|         def is_in_branch_with_symbol(branch_symbol)
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|           bpieces = branch_symbol.split(".")
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|           branch_start = "#{bpieces[0..-3].join(".")}.#{bpieces[-1]}"
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|           return ( branchVersion == branch_start )
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|         end
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| 
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|         private
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|         def buildRevision(rev)
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|           if rev == 0
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|             if @branchid.nil?
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|               @base + ".0"
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|             else
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|               @base
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|             end
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|           elsif @branchid.nil?
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|             @base + "." + rev.to_s
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|           else
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|             @base + "." + @branchid + "." + rev.to_s
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|           end
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|         end
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| 
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|         # Interpretiert die cvs revisionsnummern wie z.b. 1.14 oder 1.3.0.15
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|         def parseRevision()
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|           pieces = @complete_rev.split(".")
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|           @revision = pieces.last.to_i
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|           baseSize = 1
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|           baseSize += (pieces.size / 2)
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|           @base = pieces[0..-baseSize].join(".")
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|           if baseSize > 2
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|             @branchid = pieces[-2]
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|           end
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|         end
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|       end
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|     end
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|   end
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| end
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