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# Copyright (C) 2014 Linaro Limited
#
# Author: Remi Duraffort <remi.duraffort@linaro.org>
#
# This file is part of LAVA Dispatcher.
#
# LAVA Dispatcher 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.
#
# LAVA Dispatcher 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, see <http://www.gnu.org/licenses>.
import logging
import os
import shutil
import subprocess
import yaml
from lava_dispatcher.action import InfrastructureError
# pylint: disable=too-few-public-methods
class VCSHelper(object):
def __init__(self, url):
self.url = url
def clone(self, dest_path, revision=None, branch=None):
raise NotImplementedError
class BzrHelper(VCSHelper):
def __init__(self, url):
super(BzrHelper, self).__init__(url)
self.binary = '/usr/bin/bzr'
def clone(self, dest_path, revision=None, branch=None):
cwd = os.getcwd()
logger = logging.getLogger('dispatcher')
env = dict(os.environ)
env.update({'BZR_HOME': '/dev/null', 'BZR_LOG': '/dev/null'})
try:
if revision is not None:
logger.debug("Running '%s branch -r %s %s'", self.binary, str(revision), self.url)
subprocess.check_output([self.binary, 'branch', '-r',
str(revision), self.url,
dest_path],
stderr=subprocess.STDOUT, env=env)
commit_id = revision
else:
logger.debug("Running '%s branch %s'", self.binary, self.url)
subprocess.check_output([self.binary, 'branch', self.url,
dest_path],
stderr=subprocess.STDOUT, env=env)
os.chdir(dest_path)
commit_id = subprocess.check_output(['bzr', 'revno'],
env=env).strip().decode('utf-8', errors="replace")
except subprocess.CalledProcessError as exc:
exc_command = [i.strip() for i in exc.cmd]
exc_message = str(exc) # pylint: disable=redefined-variable-type
exc_output = str(exc).split('\n')
logger.exception(yaml.dump({
'command': exc_command,
'message': exc_message,
'output': exc_output}))
raise InfrastructureError("Unable to fetch bzr repository '%s'"
% (self.url))
finally:
os.chdir(cwd)
return commit_id
class GitHelper(VCSHelper):
"""
Helper to clone a git repository.
Usage:
git = GitHelper('url_to.git')
commit_id = git.clone('destination')
commit_id = git.clone('destination2, 'hash')
This helper will raise a InfrastructureError for any error encountered.
"""
def __init__(self, url):
super(GitHelper, self).__init__(url)
self.binary = '/usr/bin/git'
def clone(self, dest_path, shallow=False, revision=None, branch=None, history=True):
logger = logging.getLogger('dispatcher')
try:
if branch is not None:
cmd_args = [self.binary, 'clone', '-b', branch, self.url,
dest_path]
else:
cmd_args = [self.binary, 'clone', self.url, dest_path]
if shallow:
cmd_args.append("--depth=1")
logger.debug("Running '%s'", " ".join(cmd_args))
subprocess.check_output(cmd_args, stderr=subprocess.STDOUT)
if revision is not None:
logger.debug("Running '%s checkout %s", self.binary,
str(revision))
subprocess.check_output([self.binary, '-C', dest_path,
'checkout', str(revision)],
stderr=subprocess.STDOUT)
commit_id = subprocess.check_output([self.binary, '-C', dest_path,
'log', '-1', '--pretty=%H'],
stderr=subprocess.STDOUT).strip()
if not history:
logger.debug("Removing '.git' directory in %s", dest_path)
shutil.rmtree(os.path.join(dest_path, ".git"))
except subprocess.CalledProcessError as exc:
logger.error(str(exc))
raise InfrastructureError("Unable to fetch git repository '%s'"
% (self.url))
return commit_id.decode('utf-8', errors="replace")
class TarHelper(VCSHelper):
# TODO: implement TarHelper
def __init__(self, url):
super(TarHelper, self).__init__(url)
self.binary = None
class URLHelper(VCSHelper):
# TODO: implement URLHelper
def __init__(self, url):
super(URLHelper, self).__init__(url)
self.binary = None
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