Redmine/lib/redmine/scm/adapters/mercurial_adapter.rb

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# redMine - project management software
# Copyright (C) 2006-2007 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'
module Redmine
module Scm
module Adapters
class MercurialAdapter < AbstractAdapter
# Mercurial executable name
HG_BIN = "hg"
TEMPLATES_DIR = File.dirname(__FILE__) + "/mercurial"
TEMPLATE_NAME = "hg-template"
TEMPLATE_EXTENSION = "tmpl"
class << self
def client_version
@@client_version ||= (hgversion || [])
end
def hgversion
# The hg version is expressed either as a
# release number (eg 0.9.5 or 1.0) or as a revision
# id composed of 12 hexa characters.
theversion = hgversion_from_command_line
if theversion.match(/^\d+(\.\d+)+/)
theversion.split(".").collect(&:to_i)
end
end
def hgversion_from_command_line
%x{#{HG_BIN} --version}.match(/\(version (.*)\)/)[1]
end
def template_path
@@template_path ||= template_path_for(client_version)
end
def template_path_for(version)
if ((version <=> [0,9,5]) > 0) || version.empty?
ver = "1.0"
else
ver = "0.9.5"
end
"#{TEMPLATES_DIR}/#{TEMPLATE_NAME}-#{ver}.#{TEMPLATE_EXTENSION}"
end
end
def info
cmd = "#{HG_BIN} -R #{target('')} root"
root_url = nil
shellout(cmd) do |io|
root_url = io.read
end
return nil if $? && $?.exitstatus != 0
info = Info.new({:root_url => root_url.chomp,
:lastrev => revisions(nil,nil,nil,{:limit => 1}).last
})
info
rescue CommandFailed
return nil
end
def entries(path=nil, identifier=nil)
path ||= ''
entries = Entries.new
cmd = "#{HG_BIN} -R #{target('')} --cwd #{target('')} locate"
cmd << " -r " + (identifier ? identifier.to_s : "tip")
cmd << " " + shell_quote("path:#{path}") unless path.empty?
shellout(cmd) do |io|
io.each_line do |line|
# HG uses antislashs as separator on Windows
line = line.gsub(/\\/, "/")
if path.empty? or e = line.gsub!(%r{^#{with_trailling_slash(path)}},'')
e ||= line
e = e.chomp.split(%r{[\/\\]})
entries << Entry.new({:name => e.first,
:path => (path.nil? or path.empty? ? e.first : "#{with_trailling_slash(path)}#{e.first}"),
:kind => (e.size > 1 ? 'dir' : 'file'),
:lastrev => Revision.new
}) unless e.empty? || entries.detect{|entry| entry.name == e.first}
end
end
end
return nil if $? && $?.exitstatus != 0
entries.sort_by_name
end
# Fetch the revisions by using a template file that
# makes Mercurial produce a xml output.
def revisions(path=nil, identifier_from=nil, identifier_to=nil, options={})
revisions = Revisions.new
cmd = "#{HG_BIN} --debug --encoding utf8 -R #{target('')} log -C --style #{shell_quote self.class.template_path}"
if identifier_from && identifier_to
cmd << " -r #{identifier_from.to_i}:#{identifier_to.to_i}"
elsif identifier_from
cmd << " -r #{identifier_from.to_i}:"
end
cmd << " --limit #{options[:limit].to_i}" if options[:limit]
cmd << " #{path}" if path
shellout(cmd) do |io|
begin
# HG doesn't close the XML Document...
doc = REXML::Document.new(io.read << "</log>")
doc.elements.each("log/logentry") do |logentry|
paths = []
copies = logentry.get_elements('paths/path-copied')
logentry.elements.each("paths/path") do |path|
# Detect if the added file is a copy
if path.attributes['action'] == 'A' and c = copies.find{ |e| e.text == path.text }
from_path = c.attributes['copyfrom-path']
from_rev = logentry.attributes['revision']
end
paths << {:action => path.attributes['action'],
:path => "/#{path.text}",
:from_path => from_path ? "/#{from_path}" : nil,
:from_revision => from_rev ? from_rev : nil
}
end
paths.sort! { |x,y| x[:path] <=> y[:path] }
revisions << Revision.new({:identifier => logentry.attributes['revision'],
:scmid => logentry.attributes['node'],
:author => (logentry.elements['author'] ? logentry.elements['author'].text : ""),
:time => Time.parse(logentry.elements['date'].text).localtime,
:message => logentry.elements['msg'].text,
:paths => paths
})
end
rescue
logger.debug($!)
end
end
return nil if $? && $?.exitstatus != 0
revisions
end
def diff(path, identifier_from, identifier_to=nil)
path ||= ''
if identifier_to
identifier_to = identifier_to.to_i
else
identifier_to = identifier_from.to_i - 1
end
cmd = "#{HG_BIN} -R #{target('')} diff -r #{identifier_to} -r #{identifier_from} --nodates"
cmd << " -I #{target(path)}" unless path.empty?
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)
cmd = "#{HG_BIN} -R #{target('')} cat"
cmd << " -r " + (identifier ? identifier.to_s : "tip")
cmd << " #{target(path)}"
cat = nil
shellout(cmd) do |io|
io.binmode
cat = io.read
end
return nil if $? && $?.exitstatus != 0
cat
end
def annotate(path, identifier=nil)
path ||= ''
cmd = "#{HG_BIN} -R #{target('')}"
cmd << " annotate -n -u"
cmd << " -r " + (identifier ? identifier.to_s : "tip")
cmd << " -r #{identifier.to_i}" if identifier
cmd << " #{target(path)}"
blame = Annotate.new
shellout(cmd) do |io|
io.each_line do |line|
next unless line =~ %r{^([^:]+)\s(\d+):(.*)$}
blame.add_line($3.rstrip, Revision.new(:identifier => $2.to_i, :author => $1.strip))
end
end
return nil if $? && $?.exitstatus != 0
blame
end
end
end
end
end