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#!/usr/bin/env python
"""
Release script for botan (https://botan.randombit.net/)
This script requires Python 2.7 or 3.6
(C) 2011,2012,2013,2015,2016,2017 Jack Lloyd
Botan is released under the Simplified BSD License (see license.txt)
"""
import datetime
import errno
import hashlib
import io
import logging
import optparse # pylint: disable=deprecated-module
import os
import re
import shutil
import subprocess
import sys
import tarfile
import time
# This is horrible, but there is no way to override tarfile's use of time.time
# in setting the gzip header timestamp, which breaks deterministic archives
def null_time():
return 0
time.time = null_time
def check_subprocess_results(subproc, name):
(stdout, stderr) = subproc.communicate()
if subproc.returncode != 0:
if stdout != '':
logging.error(stdout)
if stderr != '':
logging.error(stderr)
raise Exception('Running %s failed' % (name))
else:
if stderr != '':
logging.debug(stderr)
return stdout
def run_git(args):
cmd = ['git'] + args
logging.debug('Running %s' % (' '.join(cmd)))
proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
return check_subprocess_results(proc, 'git')
def maybe_gpg(val):
val = val.decode('ascii')
if 'BEGIN PGP SIGNATURE' in val:
return val.split('\n')[-2]
else:
return val.strip()
def datestamp(tag):
ts = maybe_gpg(run_git(['show', '--no-patch', '--format=%ai', tag]))
ts_matcher = re.compile(r'^(\d{4})-(\d{2})-(\d{2}) \d{2}:\d{2}:\d{2} .*')
logging.debug('Git returned timestamp of %s for tag %s' % (ts, tag))
match = ts_matcher.match(ts)
if match is None:
logging.error('Failed parsing timestamp "%s" of tag %s' % (ts, tag))
return 0
return int(match.group(1) + match.group(2) + match.group(3))
def revision_of(tag):
return maybe_gpg(run_git(['show', '--no-patch', '--format=%H', tag]))
def extract_revision(revision, to):
tar_val = run_git(['archive', '--format=tar', '--prefix=%s/' % (to), revision])
tar_f = tarfile.open(fileobj=io.BytesIO(tar_val))
tar_f.extractall()
def gpg_sign(keyid, passphrase_file, files, detached=True):
options = ['--armor', '--detach-sign'] if detached else ['--clearsign']
gpg_cmd = ['gpg', '--batch'] + options + ['--local-user', keyid]
if passphrase_file != None:
gpg_cmd[1:1] = ['--passphrase-file', passphrase_file]
for filename in files:
logging.info('Signing %s using PGP id %s' % (filename, keyid))
cmd = gpg_cmd + [filename]
logging.debug('Running %s' % (' '.join(cmd)))
gpg = subprocess.Popen(cmd,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
check_subprocess_results(gpg, 'gpg')
return [filename + '.asc' for filename in files]
def parse_args(args):
parser = optparse.OptionParser(
"usage: %prog [options] <version tag>\n" +
" %prog [options] snapshot <branch>"
)
parser.add_option('--verbose', action='store_true',
default=False, help='Extra debug output')
parser.add_option('--quiet', action='store_true',
default=False, help='Only show errors')
parser.add_option('--output-dir', metavar='DIR', default='.',
help='Where to place output (default %default)')
parser.add_option('--print-output-names', action='store_true',
help='Print output archive filenames to stdout')
parser.add_option('--archive-types', metavar='LIST', default='tgz',
help='Set archive types to generate (default %default)')
parser.add_option('--pgp-key-id', metavar='KEYID',
default='EFBADFBC',
help='PGP signing key (default %default, "none" to disable)')
parser.add_option('--pgp-passphrase-file', metavar='FILE',
default=None,
help='PGP signing key passphrase file')
parser.add_option('--write-hash-file', metavar='FILE', default=None,
help='Write a file with checksums')
return parser.parse_args(args)
def remove_file_if_exists(fspath):
try:
os.unlink(fspath)
except OSError as e:
if e.errno != errno.ENOENT:
raise
def rewrite_version_file(version_file, target_version, snapshot_branch, rev_id, rel_date):
if snapshot_branch:
assert target_version == snapshot_branch
version_file_name = os.path.basename(version_file)
contents = open(version_file).readlines()
version_re = re.compile('release_(major|minor|patch) = ([0-9]+)')
def content_rewriter():
for line in contents:
if not snapshot_branch:
# Verify the version set in the source matches the tag
match = version_re.match(line)
if match:
name_to_idx = {
'major': 0,
'minor': 1,
'patch': 2
}
version_parts = target_version.split('.')
assert len(version_parts) == 3
in_tag = int(version_parts[name_to_idx[match.group(1)]])
in_file = int(match.group(2))
if in_tag != in_file:
raise Exception('Version number part "%s" in %s does not match tag %s' %
(match.group(1), version_file_name, target_version))
if line == 'release_vc_rev = None\n':
yield 'release_vc_rev = \'git:%s\'\n' % (rev_id)
elif line == 'release_datestamp = 0\n':
yield 'release_datestamp = %d\n' % (rel_date)
elif line == "release_type = \'unreleased\'\n":
if target_version == snapshot_branch:
yield "release_type = 'snapshot:%s'\n" % (snapshot_branch)
else:
yield "release_type = 'release'\n"
else:
yield line
open(version_file, 'w').write(''.join(list(content_rewriter())))
def rel_date_to_epoch(rel_date):
rel_str = str(rel_date)
year = int(rel_str[0:4])
month = int(rel_str[4:6])
day = int(rel_str[6:8])
dt = datetime.datetime(year, month, day, 6, 0, 0)
return (dt - datetime.datetime(1970, 1, 1)).total_seconds()
def write_archive(output_basename, archive_type, rel_epoch, all_files, hash_file):
output_archive = output_basename + '.' + archive_type
logging.info('Writing archive "%s"' % (output_archive))
remove_file_if_exists(output_archive)
remove_file_if_exists(output_archive + '.asc')
def write_mode(archive_type):
if archive_type == 'tgz':
return 'w:gz'
elif archive_type == 'tbz':
return 'w:bz2'
elif archive_type == 'tar':
return 'w'
# gzip format embeds the original filename, tarfile.py does the wrong
# thing unless the output name ends in .gz. So pass an explicit
# fileobj in that case, and supply a name in the form tarfile expects.
if archive_type == 'tgz':
archive = tarfile.open(output_basename + '.tar.gz',
write_mode(archive_type),
fileobj=open(output_archive, 'wb'))
else:
archive = tarfile.open(output_basename + '.tar',
write_mode(archive_type))
for f in all_files:
tarinfo = archive.gettarinfo(f)
tarinfo.uid = 500
tarinfo.gid = 500
tarinfo.uname = "botan"
tarinfo.gname = "botan"
tarinfo.mtime = rel_epoch
archive.addfile(tarinfo, open(f, 'rb'))
archive.close()
sha256 = hashlib.new('sha256')
sha256.update(open(output_archive, 'rb').read())
archive_hash = sha256.hexdigest().upper()
logging.info('SHA-256(%s) = %s' % (output_archive, archive_hash))
if hash_file != None:
hash_file.write("%s %s\n" % (archive_hash, output_archive))
return output_archive
def configure_logging(options):
class ExitOnErrorLogHandler(logging.StreamHandler, object):
def emit(self, record):
super(ExitOnErrorLogHandler, self).emit(record)
# Exit script if and ERROR or worse occurred
if record.levelno >= logging.ERROR:
sys.exit(1)
def log_level():
if options.verbose:
return logging.DEBUG
if options.quiet:
return logging.ERROR
return logging.INFO
lh = ExitOnErrorLogHandler(sys.stderr)
lh.setFormatter(logging.Formatter('%(levelname) 7s: %(message)s'))
logging.getLogger().addHandler(lh)
logging.getLogger().setLevel(log_level())
def main(args=None):
# pylint: disable=too-many-branches,too-many-locals
if args is None:
args = sys.argv[1:]
(options, args) = parse_args(args)
configure_logging(options)
if len(args) != 1 and len(args) != 2:
logging.error('Usage: %s [options] <version tag>' % (sys.argv[0]))
snapshot_branch = None
target_version = None
archives = options.archive_types.split(',') if options.archive_types != '' else []
for archive_type in archives:
if archive_type not in ['tar', 'tgz', 'tbz']:
logging.error('Unknown archive type "%s"' % (archive_type))
if args[0] == 'snapshot':
if len(args) != 2:
logging.error('Missing branch name for snapshot command')
snapshot_branch = args[1]
else:
if len(args) != 1:
logging.error('Usage error, try --help')
target_version = args[0]
if snapshot_branch:
logging.info('Creating snapshot release from branch %s', snapshot_branch)
target_version = snapshot_branch
elif len(args) == 1:
try:
logging.info('Creating release for version %s' % (target_version))
(major, minor, patch) = map(int, target_version.split('.'))
assert target_version == '%d.%d.%d' % (major, minor, patch)
target_version = target_version
except ValueError as e:
logging.error('Invalid version number %s' % (target_version))
rev_id = revision_of(target_version)
if rev_id == '':
logging.error('No tag matching %s found' % (target_version))
rel_date = datestamp(target_version)
if rel_date == 0:
logging.error('No date found for version')
logging.info('Found %s at revision id %s released %d' % (target_version, rev_id, rel_date))
rel_epoch = rel_date_to_epoch(rel_date)
def output_name():
if snapshot_branch:
if snapshot_branch == 'master':
return 'Botan-snapshot-%s' % (rel_date)
else:
return 'Botan-snapshot-%s-%s' % (snapshot_branch, rel_date)
else:
return 'Botan-' + target_version
output_basename = output_name()
logging.debug('Output basename %s' % (output_basename))
if os.access(output_basename, os.X_OK):
logging.info('Removing existing output dir %s' % (output_basename))
shutil.rmtree(output_basename)
extract_revision(rev_id, output_basename)
all_files = []
for (curdir, _, files) in os.walk(output_basename):
all_files += [os.path.join(curdir, f) for f in files]
all_files.sort(key=lambda f: (os.path.dirname(f), os.path.basename(f)))
version_file = None
for possible_version_file in ['version.txt', 'botan_version.py']:
full_path = os.path.join(output_basename, possible_version_file)
if os.access(full_path, os.R_OK):
version_file = full_path
break
if not os.access(version_file, os.R_OK):
logging.error('Cannot read %s' % (version_file))
rewrite_version_file(version_file, target_version, snapshot_branch, rev_id, rel_date)
try:
os.makedirs(options.output_dir)
except OSError as e:
if e.errno != errno.EEXIST:
logging.error('Creating dir %s failed %s' % (options.output_dir, e))
output_files = []
hash_file = None
if options.write_hash_file != None:
hash_file = open(options.write_hash_file, 'w')
for archive_type in archives:
output_files.append(write_archive(output_basename, archive_type, rel_epoch, all_files, hash_file))
if hash_file != None:
hash_file.close()
shutil.rmtree(output_basename)
if options.pgp_key_id != 'none':
if options.write_hash_file != None:
output_files += gpg_sign(options.pgp_key_id, options.pgp_passphrase_file,
[options.write_hash_file], False)
else:
output_files += gpg_sign(options.pgp_key_id, options.pgp_passphrase_file,
output_files, True)
if options.output_dir != '.':
for output_file in output_files:
logging.debug('Moving %s to %s' % (output_file, options.output_dir))
shutil.move(output_file, os.path.join(options.output_dir, output_file))
if options.print_output_names:
for output_file in output_files:
print(output_file)
return 0
if __name__ == '__main__':
try:
sys.exit(main())
except Exception as e: # pylint: disable=broad-except
logging.error(e)
import traceback
logging.error(traceback.format_exc())
sys.exit(1)
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