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osgi.py
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osgi.py
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#!/usr/bin/python
# Copyright (c) 2014, Red Hat, Inc.
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the
# distribution.
# 3. Neither the name of the Red Hat nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Authors: Alexander Kurtakov <akurtako@redhat.com>
import os
import io
import pickle
import zipfile
from zipfile import ZipFile
import javapackages.common.config as config
from javapackages.metadata.metadata import Metadata, MetadataInvalidException
def print_provides(provides):
for key in provides.keys():
print("osgi({name}) = {ver}".format(name=key,
ver=provides[key]))
def normalize_manifest(manifest):
lines = []
manifest = manifest.split(u'\n')
for line in manifest:
if line.startswith(' '):
lines[-1] += line.strip()
else:
lines.append(line.strip())
return lines
def parse_manifest(manifest):
headers = {}
DELIM = ": "
for line in normalize_manifest(manifest):
split = line.split(DELIM)
if len(split) > 1:
name = split[0].strip()
headers[name] = split[1].strip()
return headers
def split_bundle_name(bundles):
bundlenames = []
bundleline = ""
for bundle in bundles.split(','):
if not bundle:
continue
if "(" in bundle or "[" in bundle:
bundleline = bundle
continue
if bundleline:
bundle = bundleline + bundle
if ":=optional" in bundle:
bundleline = ""
continue
if ";" in bundle:
bundlenames.append(bundle.split(";")[0].strip())
else:
bundlenames.append(bundle.strip())
bundleline = ""
return bundlenames
def open_manifest(path):
mf = None
if path.endswith("/META-INF/MANIFEST.MF"):
mf = open(path, "rb")
if zipfile.is_zipfile(path):
# looks like "zipfile.is_zipfile()" is not reliable
# see rhbz#889131 for more details
try:
jarfile = ZipFile(path)
if "META-INF/MANIFEST.MF" in jarfile.namelist():
mf = jarfile.open("META-INF/MANIFEST.MF", "rU")
except IOError:
pass
if mf is None:
return None
content = mf.read()
mf.close()
return content.decode("utf-8")
def get_requires_from_manifest(manifest):
reqs = []
headers = parse_manifest(manifest)
if headers.get("Require-Bundle"):
for bundle in split_bundle_name(headers.get("Require-Bundle")):
if bundle != "system.bundle":
reqs.append(bundle)
return reqs
def get_requires(path):
reqs = []
manifest = open_manifest(path)
if manifest is None:
return reqs
reqs = get_requires_from_manifest(manifest)
return reqs
def get_provides_from_manifest(manifest):
symbolicName = None
version = None
for line in normalize_manifest(manifest):
if line.startswith("Bundle-SymbolicName:"):
symbolicName = line.split(':')[1].strip()
symbolicName = symbolicName.split(";")[0].strip()
if line.startswith("Bundle-Version:"):
versions = line.split(':')[1].strip()
versions = versions.split('.')[0:3]
version = ".".join(versions)
if symbolicName and version:
return {symbolicName: version}
return {}
def get_provides(path):
provs = {}
manifest = open_manifest(path)
if manifest is None:
return provs
provs = get_provides_from_manifest(manifest)
return provs
def find_possible_bundles(buildroot):
"""
Search given path (typically buildroot) for JAR and MANIFEST files.
"""
paths = []
for dirpath, _, filenames in os.walk(buildroot):
for filename in filenames:
fpath = os.path.abspath(os.path.join(dirpath, filename))
if _check_path(fpath):
paths.append(fpath)
return paths
def _check_path(path):
if os.path.islink(path):
return False
if path.endswith(".jar"):
return True
if path.endswith("/MANIFEST.MF"):
# who knows where the manifest can be in buildroot
# TODO: improve this check somehow(?)
# this is an attempt to identify only MANIFEST.MF files
# which are in %{_datadir} or %{_prefix}/lib
if "/usr/share/" in path or "/usr/lib" in path:
return True
return False
def read_provided_bundles_cache(cachedir):
try:
cachefile = open(os.path.join(cachedir, config.prov_bundles_cache_f), 'rb')
provided = pickle.load(cachefile)
cachefile.close()
except IOError:
return None
return provided
def write_provided_bundles_cache(cachedir, provided):
try:
cachefile = open(os.path.join(cachedir, config.prov_bundles_cache_f), 'wb')
pickle.dump(provided, cachefile)
cachefile.close()
except IOError:
return None
return provided
def check_path_in_metadata(path, cachedir_path):
buildroot = config.get_buildroot()
artifacts = Metadata.read_provided_artifacts_from_cache(cachedir_path)
if artifacts is None:
artifacts = []
metadata_paths = []
for dirpath, dirnames, filenames in os.walk(buildroot):
for filename in filenames:
fpath = os.path.abspath(os.path.join(dirpath, filename))
# FIXME: add path to metadata directory to config file?
if "/maven-metadata/" in fpath:
metadata_paths.append(fpath)
try:
mdata = Metadata(metadata_paths)
artifacts = mdata.write_provided_artifacts_to_cache(cachedir_path)
except MetadataInvalidException:
pass
for a in artifacts:
path = os.path.abspath(path)
if path.startswith(buildroot):
path = path[len(buildroot):]
path = os.path.join('/', path)
if a.path:
if (os.path.abspath(a.path) == path or
(path.startswith(os.path.abspath(a.path)) and
os.path.realpath(buildroot + path))):
return True
return False