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#!/usr/bin/env python
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this file,
# You can obtain one at http://mozilla.org/MPL/2.0/.
# This script provides one-line bootstrap support to configure systems to build
# the tree.
#
# The role of this script is to load the Python modules containing actual
# bootstrap support. It does this through various means, including fetching
# content from the upstream source repository.
from __future__ import absolute_import, print_function, unicode_literals
WRONG_PYTHON_VERSION_MESSAGE = '''
Bootstrap currently only runs on Python 2.7 or Python 3.5+.
Please try re-running with python2.7 or python3.5+.
If these aren't available on your system, you may need to install them.
Look for a "python2" or "python3.5" package in your package manager.
'''
import sys
major, minor = sys.version_info[:2]
if (major == 2 and minor < 7) or (major == 3 and minor < 5):
print(WRONG_PYTHON_VERSION_MESSAGE)
sys.exit(1)
import os
import shutil
import tempfile
import zipfile
from io import BytesIO
from optparse import OptionParser
# NOTE: This script is intended to be run with a vanilla Python install. We
# have to rely on the standard library instead of Python 2+3 helpers like
# the six module.
try:
from urllib2 import urlopen
except ImportError:
from urllib.request import urlopen
# The next two variables define where in the repository the Python files
# reside. This is used to remotely download file content when it isn't
# available locally.
REPOSITORY_PATH_PREFIX = 'python/mozboot/'
TEMPDIR = None
def setup_proxy():
# Some Linux environments define ALL_PROXY, which is a SOCKS proxy
# intended for all protocols. Python doesn't currently automatically
# detect this like it does for http_proxy and https_proxy.
if 'ALL_PROXY' in os.environ and 'https_proxy' not in os.environ:
os.environ['https_proxy'] = os.environ['ALL_PROXY']
if 'ALL_PROXY' in os.environ and 'http_proxy' not in os.environ:
os.environ['http_proxy'] = os.environ['ALL_PROXY']
def fetch_files(repo_url, repo_rev, repo_type):
setup_proxy()
repo_url = repo_url.rstrip('/')
files = {}
if repo_type == 'hgweb':
url = repo_url + '/archive/%s.zip/python/mozboot' % repo_rev
req = urlopen(url=url, timeout=30)
data = BytesIO(req.read())
data.seek(0)
zip = zipfile.ZipFile(data, 'r')
for f in zip.infolist():
# The paths are prefixed with the repo and revision name before the
# directory name.
offset = f.filename.find(REPOSITORY_PATH_PREFIX) + len(REPOSITORY_PATH_PREFIX)
name = f.filename[offset:]
# We only care about the Python modules.
if not name.startswith('mozboot/'):
continue
files[name] = zip.read(f)
# Retrieve distro script
url = repo_url + '/archive/%s.zip/third_party/python/distro/distro.py' % repo_rev
req = urlopen(url=url, timeout=30)
data = BytesIO(req.read())
data.seek(0)
zip = zipfile.ZipFile(data, 'r')
files["distro.py"] = zip.read(zip.infolist()[0])
else:
raise NotImplementedError('Not sure how to handle repo type.', repo_type)
return files
def ensure_environment(repo_url=None, repo_rev=None, repo_type=None):
"""Ensure we can load the Python modules necessary to perform bootstrap."""
try:
from mozboot.bootstrap import Bootstrapper
return Bootstrapper
except ImportError:
# The first fallback is to assume we are running from a tree checkout
# and have the files in a sibling directory.
pardir = os.path.join(os.path.dirname(__file__), os.path.pardir)
include = os.path.normpath(pardir)
sys.path.append(include)
try:
from mozboot.bootstrap import Bootstrapper
return Bootstrapper
except ImportError:
sys.path.pop()
# The next fallback is to download the files from the source
# repository.
files = fetch_files(repo_url, repo_rev, repo_type)
# Install them into a temporary location. They will be deleted
# after this script has finished executing.
global TEMPDIR
TEMPDIR = tempfile.mkdtemp()
for relpath in files.keys():
destpath = os.path.join(TEMPDIR, relpath)
destdir = os.path.dirname(destpath)
if not os.path.exists(destdir):
os.makedirs(destdir)
with open(destpath, 'wb') as fh:
fh.write(files[relpath])
# This should always work.
sys.path.append(TEMPDIR)
from mozboot.bootstrap import Bootstrapper
return Bootstrapper
def main(args):
parser = OptionParser()
parser.add_option('-r', '--repo-url', dest='repo_url',
default='https://hg.mozilla.org/mozilla-central/',
help='Base URL of source control repository where bootstrap files can '
'be downloaded.')
parser.add_option('--repo-rev', dest='repo_rev',
default='default',
help='Revision of files in repository to fetch')
parser.add_option('--repo-type', dest='repo_type',
default='hgweb',
help='The type of the repository. This defines how we fetch file '
'content. Like --repo, you should not need to set this.')
parser.add_option('--application-choice', dest='application_choice',
help='Pass in an application choice (see mozboot.bootstrap.APPLICATIONS) '
'instead of using the default interactive prompt.')
parser.add_option('--vcs', dest='vcs', default=None,
help='VCS (hg or git) to use for downloading the source code, '
'instead of using the default interactive prompt.')
parser.add_option('--no-interactive', dest='no_interactive', action='store_true',
help='Answer yes to any (Y/n) interactive prompts.')
parser.add_option('--debug', dest='debug', action='store_true',
help='Print extra runtime information useful for debugging and '
'bug reports.')
options, leftover = parser.parse_args(args)
try:
try:
cls = ensure_environment(options.repo_url, options.repo_rev,
options.repo_type)
except Exception as e:
print('Could not load the bootstrap Python environment.\n')
print('This should never happen. Consider filing a bug.\n')
print('\n')
if options.debug:
# Raise full tracebacks during debugging and for bug reporting.
raise
print(e)
return 1
dasboot = cls(choice=options.application_choice, no_interactive=options.no_interactive,
vcs=options.vcs)
dasboot.bootstrap()
return 0
finally:
if TEMPDIR is not None:
shutil.rmtree(TEMPDIR)
if __name__ == '__main__':
sys.exit(main(sys.argv))
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