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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'
require 'cgi'
module Redmine
module Scm
module Adapters
class MercurialAdapter < AbstractAdapter
# Mercurial executable name
HG_BIN = Redmine::Configuration['scm_mercurial_command'] || "hg"
HELPERS_DIR = File.dirname(__FILE__) + "/mercurial"
HG_HELPER_EXT = "#{HELPERS_DIR}/redminehelper.py"
TEMPLATE_NAME = "hg-template"
TEMPLATE_EXTENSION = "tmpl"
# raised if hg command exited with error, e.g. unknown revision.
class HgCommandAborted < CommandFailed; end
class << self
def client_command
@@bin ||= HG_BIN
end
def sq_bin
@@sq_bin ||= shell_quote(HG_BIN)
end
def client_version
@@client_version ||= (hgversion || [])
end
def client_available
!client_version.empty?
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 m = theversion.match(%r{\A(.*?)((\d+\.)+\d+)})
m[2].scan(%r{\d+}).collect(&:to_i)
end
end
def hgversion_from_command_line
shellout("#{sq_bin} --version") { |io| io.read }.to_s
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
"#{HELPERS_DIR}/#{TEMPLATE_NAME}-#{ver}.#{TEMPLATE_EXTENSION}"
end
end
def info
cmd = "#{self.class.sq_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 = "#{self.class.sq_bin} -R #{target('')} --cwd #{target('')} locate"
cmd << " -r #{hgrev(identifier, true)}"
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 $? && $?.exitstatus != 0
entries.sort_by_name
end
# Fetch the revisions by using a template file that
# makes Mercurial produce a xml output.
def revisions(path=nil, identifier_from=nil, identifier_to=nil, options={})
revisions = Revisions.new
cmd = "#{self.class.sq_bin} --debug --encoding utf8 -R #{target('')} log -C --style #{shell_quote self.class.template_path}"
if identifier_from && identifier_to
cmd << " -r #{hgrev(identifier_from, true)}:#{hgrev(identifier_to, true)}"
elsif identifier_from
cmd << " -r #{hgrev(identifier_from, true)}:"
end
cmd << " --limit #{options[:limit].to_i}" if options[:limit]
cmd << " #{shell_quote path}" unless path.blank?
shellout(cmd) do |io|
begin
# HG doesn't close the XML Document...
doc = REXML::Document.new(io.read << "</log>")
doc.elements.each("log/logentry") do |logentry|
paths = []
copies = logentry.get_elements('paths/path-copied')
logentry.elements.each("paths/path") do |path|
# Detect if the added file is a copy
if path.attributes['action'] == 'A' and c = copies.find{ |e| e.text == path.text }
from_path = c.attributes['copyfrom-path']
from_rev = logentry.attributes['revision']
end
paths << {:action => path.attributes['action'],
:path => "/#{CGI.unescape(path.text)}",
:from_path => from_path ? "/#{CGI.unescape(from_path)}" : nil,
:from_revision => from_rev ? from_rev : nil
}
end
paths.sort! { |x,y| x[:path] <=> y[:path] }
revisions << Revision.new({:identifier => logentry.attributes['revision'],
:scmid => logentry.attributes['node'],
:author => (logentry.elements['author'] ? logentry.elements['author'].text : ""),
:time => Time.parse(logentry.elements['date'].text).localtime,
:message => logentry.elements['msg'].text,
:paths => paths
})
end
rescue
logger.debug($!)
end
end
return nil if $? && $?.exitstatus != 0
revisions
end
def diff(path, identifier_from, identifier_to=nil)
path ||= ''
diff_args = ''
diff = []
if identifier_to
diff_args = "-r #{hgrev(identifier_to, true)} -r #{hgrev(identifier_from, true)}"
else
if self.class.client_version_above?([1, 2])
diff_args = "-c #{hgrev(identifier_from, true)}"
else
return []
end
end
cmd = "#{self.class.sq_bin} -R #{target('')} --config diff.git=false diff --nodates #{diff_args}"
cmd << " -I #{target(path)}" unless path.empty?
shellout(cmd) do |io|
io.each_line do |line|
diff << line
end
end
return nil if $? && $?.exitstatus != 0
diff
end
def cat(path, identifier=nil)
hg 'cat', '-r', hgrev(identifier), hgtarget(path) do |io|
io.binmode
io.read
end
rescue HgCommandAborted
nil # means not found
end
def annotate(path, identifier=nil)
blame = Annotate.new
hg 'annotate', '-ncu', '-r', hgrev(identifier), hgtarget(path) do |io|
io.each_line do |line|
next unless line =~ %r{^([^:]+)\s(\d+)\s([0-9a-f]+):\s(.*)$}
r = Revision.new(:author => $1.strip, :revision => $2, :scmid => $3,
:identifier => $3)
blame.add_line($4.rstrip, r)
end
end
blame
rescue HgCommandAborted
nil # means not found or cannot be annotated
end
class Revision < Redmine::Scm::Adapters::Revision
# Returns the readable identifier
def format_identifier
"#{revision}:#{scmid}"
end
end
# Runs 'hg' command with the given args
def hg(*args, &block)
repo_path = root_url || url
full_args = [HG_BIN, '-R', repo_path, '--encoding', 'utf-8']
full_args << '--config' << "extensions.redminehelper=#{HG_HELPER_EXT}"
full_args << '--config' << 'diff.git=false'
full_args += args
ret = shellout(full_args.map { |e| shell_quote e.to_s }.join(' '), &block)
if $? && $?.exitstatus != 0
raise HgCommandAborted, "hg exited with non-zero status: #{$?.exitstatus}"
end
ret
end
private :hg
# Returns correct revision identifier
def hgrev(identifier, sq=false)
rev = identifier.blank? ? 'tip' : identifier.to_s
rev = shell_quote(rev) if sq
rev
end
private :hgrev
def hgtarget(path)
path ||= ''
root_url + '/' + without_leading_slash(path)
end
private :hgtarget
end
end
end
end
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