giftwrap/giftwrap/builders/__init__.py

174 lines
4.9 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2014, Craig Tracey <craigtracey@gmail.com>
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
import logging
import os
import threading
from giftwrap.gerrit import GerritReview
from abc import abstractmethod, ABCMeta
LOG = logging.getLogger(__name__)
class Builder(object):
__metaclass__ = ABCMeta
def __init__(self, spec):
self._temp_dir = None
self._temp_src_dir = None
self._spec = spec
def _get_venv_pip_path(self, venv_path):
return os.path.join(venv_path, 'bin/pip')
def _get_gerrit_dependencies(self, repo, project):
try:
review = GerritReview(repo.head.change_id, project.git_path)
return review.build_pip_dependencies()
except Exception as e:
LOG.warning("Could not install gerrit dependencies!!! "
"Error was: %s", e)
return []
def _build_project(self, project):
self._prepare_project_build(project)
self._make_dir(project.install_path)
# clone the source
src_clone_dir = os.path.join(self._temp_src_dir, project.name)
repo = self._clone_project(project.giturl, project.name,
project.gitref, project.gitdepth,
src_clone_dir)
# create and build the virtualenv
self._create_virtualenv(project.venv_command, project.install_path)
dependencies = []
if project.pip_dependencies:
dependencies = project.pip_dependencies
if self._spec.settings.gerrit_dependencies:
dependencies += self._get_gerrit_dependencies(repo, project)
if len(dependencies):
self._install_pip_dependencies(project.install_path,
dependencies)
if self._spec.settings.include_config:
self._copy_sample_config(src_clone_dir, project)
self._install_project(project.install_path, src_clone_dir)
if project.postinstall_dependencies:
dependencies = project.postinstall_dependencies
self._install_pip_dependencies(project, dependencies)
# finish up
self._finalize_project_build(project)
def build(self):
spec = self._spec
self._prepare_build()
# Create a temporary directory for the source code
self._temp_dir = self._make_temp_dir()
self._temp_src_dir = os.path.join(self._temp_dir, 'src')
LOG.debug("Temporary working directory: %s", self._temp_dir)
threads = []
for project in spec.projects:
if spec.settings.parallel_build:
t = threading.Thread(target=self._build_project,
args=(project,))
threads.append(t)
t.start()
else:
self._build_project(project)
if spec.settings.parallel_build:
for thread in threads:
thread.join()
self._finalize_build()
def cleanup(self):
self._cleanup_build()
@abstractmethod
def _execute(self, command, cwd=None, exit=0):
return
@abstractmethod
def _make_temp_dir(self, prefix='giftwrap'):
return
@abstractmethod
def _make_dir(self, path, mode=0777):
return
@abstractmethod
def _prepare_build(self):
return
@abstractmethod
def _prepare_project_build(self, project):
return
@abstractmethod
def _clone_project(self, project):
return
@abstractmethod
def _create_virtualenv(self, venv_command, path):
return
@abstractmethod
def _install_pip_dependencies(self, venv_path, dependencies):
return
@abstractmethod
def _copy_sample_config(self, src_clone_dir, project):
return
@abstractmethod
def _install_project(self, venv_path, src_clone_dir):
return
@abstractmethod
def _finalize_project_build(self, project):
return
@abstractmethod
def _finalize_build(self):
return
@abstractmethod
def _cleanup_build(self):
return
from giftwrap.builders.package_builder import PackageBuilder # noqa
from giftwrap.builders.docker_builder import DockerBuilder # noqa
class BuilderFactory:
@staticmethod
def create_builder(builder_type, build_spec):
targetclass = "%sBuilder" % builder_type.capitalize()
return globals()[targetclass](build_spec)