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# Redmine - project management software

# Copyright (C) 2006-2012  Jean-Philippe Lang

#

# This program is free software; you can redistribute it and/or

# modify it under the terms of the GNU General Public License

# as published by the Free Software Foundation; either version 2

# of the License, or (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

require 'redmine/scm/adapters/abstract_adapter'

require 'uri'

module Redmine

  module Scm

    module Adapters

      class SubversionAdapter < AbstractAdapter

        # SVN executable name

        SVN_BIN = Redmine::Configuration['scm_subversion_command'] || "svn"

        class << self

          def client_command

            @@bin    ||= SVN_BIN

          end

          def sq_bin

            @@sq_bin ||= shell_quote_command

          end

          def client_version

            @@client_version ||= (svn_binary_version || [])

          end

          def client_available

            # --xml options are introduced in 1.3.

            # http://subversion.apache.org/docs/release-notes/1.3.html

            client_version_above?([1, 3])

          end

          def svn_binary_version

            scm_version = scm_version_from_command_line.dup

            if scm_version.respond_to?(:force_encoding)

              scm_version.force_encoding('ASCII-8BIT')

            end

            if m = scm_version.match(%r{\A(.*?)((\d+\.)+\d+)})

              m[2].scan(%r{\d+}).collect(&:to_i)

            end

          end

          def scm_version_from_command_line

            shellout("#{sq_bin} --version") { |io| io.read }.to_s

          end

        end

        # Get info about the svn repository

        def info

          cmd = "#{self.class.sq_bin} info --xml #{target}"

          cmd << credentials_string

          info = nil

          shellout(cmd) do |io|

            output = io.read

            if output.respond_to?(:force_encoding)

              output.force_encoding('UTF-8')

            end

            begin

              doc = parse_xml(output)

              # root_url = doc.elements["info/entry/repository/root"].text

              info = Info.new({:root_url => doc['info']['entry']['repository']['root']['__content__'],

                               :lastrev => Revision.new({

                                 :identifier => doc['info']['entry']['commit']['revision'],

                                 :time => Time.parse(doc['info']['entry']['commit']['date']['__content__']).localtime,

                                 :author => (doc['info']['entry']['commit']['author'] ? doc['info']['entry']['commit']['author']['__content__'] : "")

                               })

                             })

            rescue

            end

          end

          return nil if $? && $?.exitstatus != 0

          info

        rescue CommandFailed

          return nil

        end

        # Returns an Entries collection

        # or nil if the given path doesn't exist in the repository

        def entries(path=nil, identifier=nil, options={})

          path ||= ''

          identifier = (identifier and identifier.to_i > 0) ? identifier.to_i : "HEAD"

          entries = Entries.new

          cmd = "#{self.class.sq_bin} list --xml #{target(path)}@#{identifier}"

          cmd << credentials_string

          shellout(cmd) do |io|

            output = io.read

            if output.respond_to?(:force_encoding)

              output.force_encoding('UTF-8')

            end

            begin

              doc = parse_xml(output)

              each_xml_element(doc['lists']['list'], 'entry') do |entry|

                commit = entry['commit']

                commit_date = commit['date']

                # Skip directory if there is no commit date (usually that

                # means that we don't have read access to it)

                next if entry['kind'] == 'dir' && commit_date.nil?

                name = entry['name']['__content__']

                entries << Entry.new({:name => URI.unescape(name),

                            :path => ((path.empty? ? "" : "#{path}/") + name),

                            :kind => entry['kind'],

                            :size => ((s = entry['size']) ? s['__content__'].to_i : nil),

                            :lastrev => Revision.new({

                              :identifier => commit['revision'],

                              :time => Time.parse(commit_date['__content__'].to_s).localtime,

                              :author => ((a = commit['author']) ? a['__content__'] : nil)

                              })

                            })

              end

            rescue Exception => e

              logger.error("Error parsing svn output: #{e.message}")

              logger.error("Output was:\n #{output}")

            end

          end

          return nil if $? && $?.exitstatus != 0

          logger.debug("Found #{entries.size} entries in the repository for #{target(path)}") if logger && logger.debug?

          entries.sort_by_name

        end

        def properties(path, identifier=nil)

          # proplist xml output supported in svn 1.5.0 and higher

          return nil unless self.class.client_version_above?([1, 5, 0])

          identifier = (identifier and identifier.to_i > 0) ? identifier.to_i : "HEAD"

          cmd = "#{self.class.sq_bin} proplist --verbose --xml #{target(path)}@#{identifier}"

          cmd << credentials_string

          properties = {}

          shellout(cmd) do |io|

            output = io.read

            if output.respond_to?(:force_encoding)

              output.force_encoding('UTF-8')

            end

            begin

              doc = parse_xml(output)

              each_xml_element(doc['properties']['target'], 'property') do |property|

                properties[ property['name'] ] = property['__content__'].to_s

              end

            rescue

            end

          end

          return nil if $? && $?.exitstatus != 0

          properties

        end

        def revisions(path=nil, identifier_from=nil, identifier_to=nil, options={})

          path ||= ''

          identifier_from = (identifier_from && identifier_from.to_i > 0) ? identifier_from.to_i : "HEAD"

          identifier_to = (identifier_to && identifier_to.to_i > 0) ? identifier_to.to_i : 1

          revisions = Revisions.new

          cmd = "#{self.class.sq_bin} log --xml -r #{identifier_from}:#{identifier_to}"

          cmd << credentials_string

          cmd << " --verbose " if  options[:with_paths]

          cmd << " --limit #{options[:limit].to_i}" if options[:limit]

          cmd << ' ' + target(path)

          shellout(cmd) do |io|

            output = io.read

            if output.respond_to?(:force_encoding)

              output.force_encoding('UTF-8')

            end

            begin

              doc = parse_xml(output)

              each_xml_element(doc['log'], 'logentry') do |logentry|

                paths = []

                each_xml_element(logentry['paths'], 'path') do |path|

                  paths << {:action => path['action'],

                            :path => path['__content__'],

                            :from_path => path['copyfrom-path'],

                            :from_revision => path['copyfrom-rev']

                            }

                end if logentry['paths'] && logentry['paths']['path']

                paths.sort! { |x,y| x[:path] <=> y[:path] }

                revisions << Revision.new({:identifier => logentry['revision'],

                              :author => (logentry['author'] ? logentry['author']['__content__'] : ""),

                              :time => Time.parse(logentry['date']['__content__'].to_s).localtime,

                              :message => logentry['msg']['__content__'],

                              :paths => paths

                            })

              end

            rescue

            end

          end

          return nil if $? && $?.exitstatus != 0

          revisions

        end

        def diff(path, identifier_from, identifier_to=nil)

          path ||= ''

          identifier_from = (identifier_from and identifier_from.to_i > 0) ? identifier_from.to_i : ''

          identifier_to = (identifier_to and identifier_to.to_i > 0) ? identifier_to.to_i : (identifier_from.to_i - 1)

          cmd = "#{self.class.sq_bin} diff -r "

          cmd << "#{identifier_to}:"

          cmd << "#{identifier_from}"

          cmd << " #{target(path)}@#{identifier_from}"

          cmd << credentials_string

          diff = []

          shellout(cmd) do |io|

            io.each_line do |line|

              diff << line

            end

          end

          return nil if $? && $?.exitstatus != 0

          diff

        end

        def cat(path, identifier=nil)

          identifier = (identifier and identifier.to_i > 0) ? identifier.to_i : "HEAD"

          cmd = "#{self.class.sq_bin} cat #{target(path)}@#{identifier}"

          cmd << credentials_string

          cat = nil

          shellout(cmd) do |io|

            io.binmode

            cat = io.read

          end

          return nil if $? && $?.exitstatus != 0

          cat

        end

        def annotate(path, identifier=nil)

          identifier = (identifier and identifier.to_i > 0) ? identifier.to_i : "HEAD"

          cmd = "#{self.class.sq_bin} blame #{target(path)}@#{identifier}"

          cmd << credentials_string

          blame = Annotate.new

          shellout(cmd) do |io|

            io.each_line do |line|

              next unless line =~ %r{^\s*(\d+)\s*(\S+)\s(.*)$}

              rev = $1

              blame.add_line($3.rstrip,

                   Revision.new(

                      :identifier => rev,

                      :revision   => rev,

                      :author     => $2.strip

                      ))

            end

          end

          return nil if $? && $?.exitstatus != 0

          blame

        end

        private

        def credentials_string

          str = ''

          str << " --username #{shell_quote(@login)}" unless @login.blank?

          str << " --password #{shell_quote(@password)}" unless @login.blank? || @password.blank?

          str << " --no-auth-cache --non-interactive"

          str

        end

        # Helper that iterates over the child elements of a xml node

        # MiniXml returns a hash when a single child is found

        # or an array of hashes for multiple children

        def each_xml_element(node, name)

          if node && node[name]

            if node[name].is_a?(Hash)

              yield node[name]

            else

              node[name].each do |element|

                yield element

              end

            end

          end

        end

        def target(path = '')

          base = path.match(/^\//) ? root_url : url

          uri = "#{base}/#{path}"

          uri = URI.escape(URI.escape(uri), '[]')

          shell_quote(uri.gsub(/[?<>\*]/, ''))

        end

      end

    end

  end

end

# Redmine - project management software

# Copyright (C) 2006-2012  Jean-Philippe Lang

#

# This program is free software; you can redistribute it and/or

# modify it under the terms of the GNU General Public License

# as published by the Free Software Foundation; either version 2

# of the License, or (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

require File.expand_path('../../../test_helper', __FILE__)

class RoutingAutoCompletesTest < ActionController::IntegrationTest

  def test_auto_completes

    assert_routing(

        { :method => 'get', :path => "/issues/auto_complete" },

        { :controller => 'auto_completes', :action => 'issues' }

      )

  end

end