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# encoding: utf-8
############################################################################
# Copyright 2009-2019 Benjamin Kellermann #
# #
# This file is part of Dudle. #
# #
# Dudle is free software: you can redistribute it and/or modify it under #
# the terms of the GNU Affero General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# Dudle 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 Affero General Public #
# License for more details. #
# #
# You should have received a copy of the GNU Affero General Public License #
# along with dudle. If not, see <http://www.gnu.org/licenses/>. #
############################################################################
require "time"
require_relative "log"
require "open3"
require 'tempfile'
def runcmd *args
Open3.popen3(*args) {|i,o,e,t| o.read }
end
class VCS
GITCMD="git"
def VCS.init
runcmd(GITCMD, "init")
end
def VCS.rm file
runcmd(GITCMD, "rm", file)
end
def VCS.add file
runcmd(GITCMD, "add", file)
end
def VCS.revno
# there is a bug in git log --format, which suppresses the \n on the last line
runcmd(GITCMD, "log", "--format=format:x").scan("\n").size + 1
end
def VCS.cat revision, file
revs = runcmd(GITCMD, "log", "--format=format:%H").split("\n").reverse
runcmd(GITCMD, "show", "#{revs[revision-1]}:#{file}")
end
def VCS.history
log = runcmd(GITCMD, "log", "--format=format:%s\t%ai").force_encoding('utf-8').split("\n").reverse
ret = Log.new
log.each_with_index{|s,i|
a = s.scan(/^([^\t]*)(.*)$/).flatten
ret.add(i+1, Time.parse(a[1]), a[0])
}
ret
end
def VCS.commit comment
tmpfile = Tempfile.new("commit")
tmpfile.write(comment)
tmpfile.close
ret = runcmd(GITCMD, "commit", "-a", "-F", tmpfile.path)
tmpfile.unlink
ret
end
def VCS.branch source, target
runcmd(GITCMD, "clone", source, target)
end
def VCS.revert revno
revhash = runcmd(GITCMD, "log", "--format=%H").split("\n").reverse[revno-1]
runcmd(GITCMD, "checkout", revhash, ".")
VCS.commit("Reverted Poll to version #{revno}")
end
def VCS.reset revno
revhash = runcmd(GITCMD, "log", "--format=%H").split("\n").reverse[revno-1]
runcmd(GITCMD, "checkout", "-B", "master", revhash)
end
end
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