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openproject/lib/redmine/scm/adapters/git_adapter.rb

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#-- copyright
# ChiliProject is a project management system.
#
# Copyright (C) 2010-2011 the ChiliProject Team
#
# 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.
#
# See doc/COPYRIGHT.rdoc for more details.
#++
require 'redmine/scm/adapters/abstract_adapter'
module Redmine
module Scm
module Adapters
class GitAdapter < AbstractAdapter
SCM_GIT_REPORT_LAST_COMMIT = true
# Git executable name
GIT_BIN = Redmine::Configuration['scm_git_command'] || "git"
# raised if scm command exited with error, e.g. unknown revision.
class ScmCommandAborted < CommandFailed; end
class << self
def client_command
@@bin ||= GIT_BIN
end
def sq_bin
@@sq_bin ||= shell_quote(GIT_BIN)
end
def client_version
@@client_version ||= (scm_command_version || [])
end
def client_available
!client_version.empty?
end
def scm_command_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 --no-color") { |io| io.read }.to_s
end
end
def initialize(url, root_url=nil, login=nil, password=nil, path_encoding=nil)
super
@path_encoding = path_encoding || 'UTF-8'
@flag_report_last_commit = SCM_GIT_REPORT_LAST_COMMIT
end
def info
begin
Info.new(:root_url => url, :lastrev => lastrev('',nil))
rescue
nil
end
end
def branches
return @branches if @branches
@branches = []
cmd_args = %w|branch --no-color|
scm_cmd(*cmd_args) do |io|
io.each_line do |line|
@branches << line.match('\s*\*?\s*(.*)$')[1]
end
end
@branches.sort!
rescue ScmCommandAborted
nil
end
def tags
return @tags if @tags
cmd_args = %w|tag|
scm_cmd(*cmd_args) do |io|
@tags = io.readlines.sort!.map{|t| t.strip}
end
rescue ScmCommandAborted
nil
end
def default_branch
bras = self.branches
return nil if bras.nil?
bras.include?('master') ? 'master' : bras.first
end
def entries(path=nil, identifier=nil)
path ||= ''
p = scm_iconv(@path_encoding, 'UTF-8', path)
entries = Entries.new
cmd_args = %w|ls-tree -l|
cmd_args << "HEAD:#{p}" if identifier.nil?
cmd_args << "#{identifier}:#{p}" if identifier
scm_cmd(*cmd_args) do |io|
io.each_line do |line|
e = line.chomp.to_s
if e =~ /^\d+\s+(\w+)\s+([0-9a-f]{40})\s+([0-9-]+)\t(.+)$/
type = $1
sha = $2
size = $3
name = $4
if name.respond_to?(:force_encoding)
name.force_encoding(@path_encoding)
end
full_path = p.empty? ? name : "#{p}/#{name}"
n = scm_iconv('UTF-8', @path_encoding, name)
full_p = scm_iconv('UTF-8', @path_encoding, full_path)
entries << Entry.new({:name => n,
:path => full_p,
:kind => (type == "tree") ? 'dir' : 'file',
:size => (type == "tree") ? nil : size,
:lastrev => @flag_report_last_commit ? lastrev(full_path, identifier) : Revision.new
}) unless entries.detect{|entry| entry.name == name}
end
end
end
entries.sort_by_name
rescue ScmCommandAborted
nil
end
def lastrev(path, rev)
return nil if path.nil?
cmd_args = %w|log --no-color --encoding=UTF-8 --date=iso --pretty=fuller --no-merges -n 1|
cmd_args << rev if rev
cmd_args << "--" << path unless path.empty?
lines = []
scm_cmd(*cmd_args) { |io| lines = io.readlines }
begin
id = lines[0].split[1]
author = lines[1].match('Author:\s+(.*)$')[1]
time = Time.parse(lines[4].match('CommitDate:\s+(.*)$')[1])
Revision.new({
:identifier => id,
:scmid => id,
:author => author,
:time => time,
:message => nil,
:paths => nil
})
rescue NoMethodError => e
logger.error("The revision '#{path}' has a wrong format")
return nil
end
rescue ScmCommandAborted
nil
end
def revisions(path, identifier_from, identifier_to, options={})
revisions = Revisions.new
cmd_args = %w|log --no-color --encoding=UTF-8 --raw --date=iso --pretty=fuller|
cmd_args << "--reverse" if options[:reverse]
cmd_args << "--all" if options[:all]
cmd_args << "-n" << "#{options[:limit].to_i}" if options[:limit]
from_to = ""
from_to << "#{identifier_from}.." if identifier_from
from_to << "#{identifier_to}" if identifier_to
cmd_args << from_to if !from_to.empty?
cmd_args << "--since=#{options[:since].strftime("%Y-%m-%d %H:%M:%S")}" if options[:since]
cmd_args << "--" << scm_iconv(@path_encoding, 'UTF-8', path) if path && !path.empty?
scm_cmd *cmd_args do |io|
files=[]
changeset = {}
parsing_descr = 0 #0: not parsing desc or files, 1: parsing desc, 2: parsing files
io.each_line do |line|
if line =~ /^commit ([0-9a-f]{40})$/
key = "commit"
value = $1
if (parsing_descr == 1 || parsing_descr == 2)
parsing_descr = 0
revision = Revision.new({
:identifier => changeset[:commit],
:scmid => changeset[:commit],
:author => changeset[:author],
:time => Time.parse(changeset[:date]),
:message => changeset[:description],
:paths => files
})
if block_given?
yield revision
else
revisions << revision
end
changeset = {}
files = []
end
changeset[:commit] = $1
elsif (parsing_descr == 0) && line =~ /^(\w+):\s*(.*)$/
key = $1
value = $2
if key == "Author"
changeset[:author] = value
elsif key == "CommitDate"
changeset[:date] = value
end
elsif (parsing_descr == 0) && line.chomp.to_s == ""
parsing_descr = 1
changeset[:description] = ""
elsif (parsing_descr == 1 || parsing_descr == 2) \
&& line =~ /^:\d+\s+\d+\s+[0-9a-f.]+\s+[0-9a-f.]+\s+(\w)\t(.+)$/
parsing_descr = 2
fileaction = $1
filepath = $2
p = scm_iconv('UTF-8', @path_encoding, filepath)
files << {:action => fileaction, :path => p}
elsif (parsing_descr == 1 || parsing_descr == 2) \
&& line =~ /^:\d+\s+\d+\s+[0-9a-f.]+\s+[0-9a-f.]+\s+(\w)\d+\s+(\S+)\t(.+)$/
parsing_descr = 2
fileaction = $1
filepath = $3
p = scm_iconv('UTF-8', @path_encoding, filepath)
files << {:action => fileaction, :path => p}
elsif (parsing_descr == 1) && line.chomp.to_s == ""
parsing_descr = 2
elsif (parsing_descr == 1)
changeset[:description] << line[4..-1]
end
end
if changeset[:commit]
revision = Revision.new({
:identifier => changeset[:commit],
:scmid => changeset[:commit],
:author => changeset[:author],
:time => Time.parse(changeset[:date]),
:message => changeset[:description],
:paths => files
})
if block_given?
yield revision
else
revisions << revision
end
end
end
revisions
rescue ScmCommandAborted
revisions
end
def diff(path, identifier_from, identifier_to=nil)
path ||= ''
cmd_args = []
if identifier_to
cmd_args << "diff" << "--no-color" << identifier_to << identifier_from
else
cmd_args << "show" << "--no-color" << identifier_from
end
cmd_args << "--" << scm_iconv(@path_encoding, 'UTF-8', path) unless path.empty?
diff = []
scm_cmd *cmd_args do |io|
io.each_line do |line|
diff << line
end
end
diff
rescue ScmCommandAborted
nil
end
def annotate(path, identifier=nil)
identifier = 'HEAD' if identifier.blank?
cmd_args = %w|blame|
cmd_args << "-p" << identifier << "--" << scm_iconv(@path_encoding, 'UTF-8', path)
blame = Annotate.new
content = nil
scm_cmd(*cmd_args) { |io| io.binmode; content = io.read }
# git annotates binary files
return nil if content.is_binary_data?
identifier = ''
# git shows commit author on the first occurrence only
authors_by_commit = {}
content.split("\n").each do |line|
if line =~ /^([0-9a-f]{39,40})\s.*/
identifier = $1
elsif line =~ /^author (.+)/
authors_by_commit[identifier] = $1.strip
elsif line =~ /^\t(.*)/
blame.add_line($1, Revision.new(
:identifier => identifier,
:author => authors_by_commit[identifier]))
identifier = ''
author = ''
end
end
blame
rescue ScmCommandAborted
nil
end
def cat(path, identifier=nil)
if identifier.nil?
identifier = 'HEAD'
end
cmd_args = %w|show --no-color|
cmd_args << "#{identifier}:#{scm_iconv(@path_encoding, 'UTF-8', path)}"
cat = nil
scm_cmd(*cmd_args) do |io|
io.binmode
cat = io.read
end
cat
rescue ScmCommandAborted
nil
end
class Revision < Redmine::Scm::Adapters::Revision
# Returns the readable identifier
def format_identifier
identifier[0,8]
end
end
def scm_cmd(*args, &block)
repo_path = root_url || url
full_args = [GIT_BIN, '--git-dir', repo_path]
if self.class.client_version_above?([1, 7, 2])
full_args << '-c' << 'core.quotepath=false'
end
full_args += args
ret = shellout(full_args.map { |e| shell_quote e.to_s }.join(' '), &block)
if $? && $?.exitstatus != 0
raise ScmCommandAborted, "git exited with non-zero status: #{$?.exitstatus}"
end
ret
end
private :scm_cmd
end
end
end
end