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	git-svn-id: http://redmine.rubyforge.org/svn/trunk@1499 e93f8b46-1217-0410-a6f0-8f06a7374b81
		
			
				
	
	
		
			204 lines
		
	
	
		
			8.0 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			204 lines
		
	
	
		
			8.0 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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require 'redmine/scm/adapters/abstract_adapter'
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module Redmine
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  module Scm
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    module Adapters    
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      class MercurialAdapter < AbstractAdapter
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        # Mercurial executable name
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        HG_BIN = "hg"
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        TEMPLATES_DIR = File.dirname(__FILE__) + "/mercurial"
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        TEMPLATE_NAME = "hg-template"
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        TEMPLATE_EXTENSION = "tmpl"
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        def info
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          cmd = "#{HG_BIN} -R #{target('')} root"
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          root_url = nil
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          shellout(cmd) do |io|
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            root_url = io.gets
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          end
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          return nil if $? && $?.exitstatus != 0
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          info = Info.new({:root_url => root_url.chomp,
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                            :lastrev => revisions(nil,nil,nil,{:limit => 1}).last
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                          })
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          info
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        rescue CommandFailed
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          return nil
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        end
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        def entries(path=nil, identifier=nil)
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          path ||= ''
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          entries = Entries.new
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          cmd = "#{HG_BIN} -R #{target('')} --cwd #{target('')} locate"
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          cmd << " -r " + (identifier ? identifier.to_s : "tip")
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          cmd << " " + shell_quote("path:#{path}") unless path.empty?
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          shellout(cmd) do |io|
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            io.each_line do |line|
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              # HG uses antislashs as separator on Windows
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              line = line.gsub(/\\/, "/")
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              if path.empty? or e = line.gsub!(%r{^#{with_trailling_slash(path)}},'')
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                e ||= line
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                e = e.chomp.split(%r{[\/\\]})
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                entries << Entry.new({:name => e.first,
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                                       :path => (path.nil? or path.empty? ? e.first : "#{with_trailling_slash(path)}#{e.first}"),
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                                       :kind => (e.size > 1 ? 'dir' : 'file'),
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                                       :lastrev => Revision.new
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                                     }) unless entries.detect{|entry| entry.name == e.first}
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              end
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            end
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          end
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          return nil if $? && $?.exitstatus != 0
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          entries.sort_by_name
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        end
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        # Fetch the revisions by using a template file that 
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        # makes Mercurial produce a xml output.
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        def revisions(path=nil, identifier_from=nil, identifier_to=nil, options={})  
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          revisions = Revisions.new
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          cmd = "#{HG_BIN} --debug --encoding utf8 -R #{target('')} log -C --style #{self.template_path}"
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          if identifier_from && identifier_to
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            cmd << " -r #{identifier_from.to_i}:#{identifier_to.to_i}"
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          elsif identifier_from
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            cmd << " -r #{identifier_from.to_i}:"
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          end
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          cmd << " --limit #{options[:limit].to_i}" if options[:limit]
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          cmd << " #{path}" if path
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          shellout(cmd) do |io|
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            begin
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              # HG doesn't close the XML Document...
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              doc = REXML::Document.new(io.read << "</log>")
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              doc.elements.each("log/logentry") do |logentry|
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                paths = []
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                copies = logentry.get_elements('paths/path-copied')
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                logentry.elements.each("paths/path") do |path|
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                  # Detect if the added file is a copy
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                  if path.attributes['action'] == 'A' and c = copies.find{ |e| e.text == path.text }
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                    from_path = c.attributes['copyfrom-path']
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                    from_rev = logentry.attributes['revision']
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                  end
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                  paths << {:action => path.attributes['action'],
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                    :path => "/#{path.text}",
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                    :from_path => from_path ? "/#{from_path}" : nil,
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                    :from_revision => from_rev ? from_rev : nil
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                  }
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                end
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                paths.sort! { |x,y| x[:path] <=> y[:path] }
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                revisions << Revision.new({:identifier => logentry.attributes['revision'],
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                                            :scmid => logentry.attributes['node'],
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                                            :author => (logentry.elements['author'] ? logentry.elements['author'].text : ""),
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                                            :time => Time.parse(logentry.elements['date'].text).localtime,
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                                            :message => logentry.elements['msg'].text,
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                                            :paths => paths
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                                          })
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              end
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            rescue
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              logger.debug($!)
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            end
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          end
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          return nil if $? && $?.exitstatus != 0
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          revisions
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        end
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        def diff(path, identifier_from, identifier_to=nil, type="inline")
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          path ||= ''
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          if identifier_to
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            identifier_to = identifier_to.to_i 
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          else
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            identifier_to = identifier_from.to_i - 1
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          end
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          cmd = "#{HG_BIN} -R #{target('')} diff -r #{identifier_to} -r #{identifier_from} --nodates"
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          cmd << " -I #{target(path)}" unless path.empty?
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          diff = []
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          shellout(cmd) 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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          return nil if $? && $?.exitstatus != 0
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          DiffTableList.new diff, type
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        end
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        def cat(path, identifier=nil)
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          cmd = "#{HG_BIN} -R #{target('')} cat"
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          cmd << " -r " + (identifier ? identifier.to_s : "tip")
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          cmd << " #{target(path)}"
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          cat = nil
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          shellout(cmd) do |io|
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            io.binmode
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            cat = io.read
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          end
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          return nil if $? && $?.exitstatus != 0
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          cat
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        end
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        def annotate(path, identifier=nil)
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          path ||= ''
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          cmd = "#{HG_BIN} -R #{target('')}"
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          cmd << " annotate -n -u"
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          cmd << " -r " + (identifier ? identifier.to_s : "tip")
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          cmd << " -r #{identifier.to_i}" if identifier
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          cmd << " #{target(path)}"
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          blame = Annotate.new
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          shellout(cmd) do |io|
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            io.each_line do |line|
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              next unless line =~ %r{^([^:]+)\s(\d+):(.*)$}
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              blame.add_line($3.rstrip, Revision.new(:identifier => $2.to_i, :author => $1.strip))
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            end
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          end
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          return nil if $? && $?.exitstatus != 0
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          blame
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        end
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        # The hg version version is expressed either as a
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        # release number (eg 0.9.5 or 1.0) or as a revision
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        # id composed of 12 hexa characters.
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        def hgversion  
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          theversion = hgversion_from_command_line
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          if theversion.match(/^\d+(\.\d+)+/)
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            theversion.split(".").collect(&:to_i)
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            #            elsif match = theversion.match(/[[:xdigit:]]{12}/)
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            #               match[0]
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          else
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            "Unknown version"
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          end
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        end
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        def template_path
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          @template ||= begin
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                          if hgversion.is_a?(String) or ((hgversion <=> [0,9,5]) > 0)
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                            ver = "1.0"
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                          else
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                            ver = "0.9.5"
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                          end
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                          "#{TEMPLATES_DIR}/#{TEMPLATE_NAME}-#{ver}.#{TEMPLATE_EXTENSION}"
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                        end
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        end
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        private
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        def hgversion_from_command_line
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          @hgversion ||= %x{#{HG_BIN} --version}.match(/\(version (.*)\)/)[1]
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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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