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#!/usr/bin/env python3
"""\
This module formats the package version and copyright information for the
viewer and its dependent packages.
$LicenseInfo:firstyear=2014&license=viewerlgpl$
Second Life Viewer Source Code
Copyright (C) 2014, Linden Research, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation;
version 2.1 of the License only.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
$/LicenseInfo$
"""
import os
import sys
import errno
import re
import subprocess
import argparse
parser = argparse.ArgumentParser(description='Format dependency version and copyright information for the viewer About box content')
parser.add_argument('channel', help='viewer channel name')
parser.add_argument('version', help='viewer version number')
args = parser.parse_args()
_autobuild=os.getenv('AUTOBUILD', 'autobuild')
_autobuild_env=os.environ.copy()
# Coerce stdout encoding to utf-8 as cygwin's will be detected as cp1252 otherwise.
_autobuild_env["PYTHONIOENCODING"] = "utf-8"
pkg_line=re.compile('^([\w-]+):\s+(.*)$')
def autobuild(*args):
"""
Launch autobuild with specified command-line arguments.
Return its stdout pipe from which the caller can read.
"""
# subprocess wants a list, not a tuple
command = [_autobuild] + list(args)
try:
child = subprocess.Popen(command,
stdin=None, stdout=subprocess.PIPE,
universal_newlines=True, env=_autobuild_env)
except OSError as err:
if err.errno != errno.ENOENT:
# Don't attempt to interpret anything but ENOENT
raise
# Here it's ENOENT: subprocess can't find the autobuild executable.
sys.exit("packages-formatter on %s: can't run autobuild:\n%s\n%s" % \
(sys.platform, ' '.join(command), err))
# no exceptions yet, let caller read stdout
return child.stdout
info=dict(versions={}, copyrights={})
dups=dict(versions=set(), copyrights=set())
def add_info(key, pkg, lines):
if pkg not in info[key]:
info[key][pkg] = '\n'.join(lines)
else:
dups[key].add(pkg)
versions=autobuild('install', '--versions')
copyrights=autobuild('install', '--copyrights')
viewer_copyright = copyrights.readline() # first line is the copyright for the viewer itself
# Two different autobuild outputs, but we treat them essentially the same way:
# populating each into a dict; each a subdict of 'info'.
for key, rawdata in ("versions", versions), ("copyrights", copyrights):
lines = iter(rawdata)
try:
line = next(lines)
except StopIteration:
# rawdata is completely empty? okay...
pass
else:
pkg_info = pkg_line.match(line)
# The first line for each package must match pkg_line.
if not pkg_info:
sys.exit("Unrecognized --%s output: %r" % (key, line))
# Only the very first line in rawdata MUST match; for the rest of
# rawdata, matching the regexp is how we recognize the start of the
# next package.
while True: # iterate over packages in rawdata
pkg = pkg_info.group(1)
pkg_lines = [pkg_info.group(2).strip()]
for line in lines:
pkg_info = pkg_line.match(line)
if pkg_info:
# we hit the start of the next package data
add_info(key, pkg, pkg_lines)
break
else:
# no package prefix: additional line for same package
pkg_lines.append(line.rstrip())
else:
# last package in the output -- finished 'lines'
add_info(key, pkg, pkg_lines)
break
# Now that we've run through all of both outputs -- are there duplicates?
if any(pkgs for pkgs in list(dups.values())):
for key, pkgs in list(dups.items()):
if pkgs:
print("Duplicate %s for %s" % (key, ", ".join(pkgs)), file=sys.stderr)
sys.exit(1)
print("%s %s" % (args.channel, args.version))
print(viewer_copyright)
version = list(info['versions'].items())
version.sort()
for pkg, pkg_version in version:
print(': '.join([pkg, pkg_version]))
try:
print(info['copyrights'][pkg])
except KeyError:
sys.exit("No copyright for %s" % pkg)
print()
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