objects/git_repo.rb
# Copyright (c) 2016-2024 Yegor Bugayenko
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the 'Software'), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
require 'pdd'
require 'yaml'
require 'base64'
require 'tmpdir'
require 'tempfile'
require 'fileutils'
require 'shellwords'
require_relative 'exec'
require_relative 'user_error'
#
# Repository in Git
#
class GitRepo
attr_reader :uri, :name, :path, :master, :head_commit_hash, :target
def initialize(
uri:,
name:,
master: 'master',
head_commit_hash: '',
**options
)
@id = Base64.encode64(uri).gsub(%r{[\s=/]+}, '')
@name = name
@dir = options[:dir] || Dir.mktmpdir('0pdd')
@path = "#{@dir}/#{@id}"
@uri = uri
@id_rsa = options[:id_rsa] || ''
@master = master
@head_commit_hash = head_commit_hash
@target = options[:target] || 'master'
end
def lock
"/tmp/0pdd-locks/#{@id}.txt"
end
def config
f = File.join(@path, '.0pdd.yml')
if File.exist?(f)
YAML.safe_load(File.open(f))
else
{}
end
end
def xml
raise "Path is absent: #{@path}" unless File.exist?(@path)
Tempfile.open do |f|
begin
Exec.new("cd #{@path} && pdd -v -f #{f.path}").run
rescue Exec::Error => e
raise UserError, e.message if e.code == 1
raise e
end
Nokogiri::XML(File.read(f))
end
end
def push
if File.exist?(@path)
pull
else
clone
end
end
def change_in_master?
"refs/heads/#{master}".eql?(target)
end
private
def clone
prepare_key
prepare_git
Exec.new('git clone', '--depth=1', '--quiet', @uri, @path).run
end
def pull
prepare_key
prepare_git
Exec.new(
[
"cd #{@path}",
"master=#{Shellwords.escape(@master)}",
'git config --local core.autocrlf false',
'git reset origin/${master} --hard --quiet',
'git clean --force -d',
'git fetch --quiet',
'git checkout origin/${master}',
'git rebase --abort || true',
'git rebase --autostash --strategy-option=theirs origin/${master}'
].join(' && ')
).run
end
def prepare_key
dir = "#{Dir.home}/.ssh"
return if File.exist?(dir)
FileUtils.mkdir_p(dir)
File.write("#{dir}/id_rsa", @id_rsa) unless @id_rsa.empty?
Exec.new(
[
'echo "Host *" > ~/.ssh/config',
'echo " StrictHostKeyChecking no" >> ~/.ssh/config',
'echo " UserKnownHostsFile=~/.ssh/known_hosts" >> ~/.ssh/config',
'chmod -R 600 ~/.ssh/*'
].join(';')
).run
end
def prepare_git
Exec.new(
[
'GIT=$(git --version)',
'if [[ "${GIT}" != "git version 2."* ]]',
'then echo "Git is too old: ${GIT}"',
'exit -1',
'fi'
].join(';')
).run
return if ENV['RACK_ENV'] == 'test'
Exec.new(
[
'if ! git config --get --global user.email',
'then git config --global user.email "server@0pdd.com"',
'fi',
'if ! git config --get --global user.name',
'then git config --global user.name "0pdd.com"',
'fi'
].join(';')
).run
end
end