mirror of
https://github.com/openSUSE/osc.git
synced 2024-09-20 09:16:16 +02:00
441 lines
17 KiB
Python
441 lines
17 KiB
Python
# Copyright (C) 2006 Novell Inc. All rights reserved.
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# This program is free software; it may be used, copied, modified
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# and distributed under the terms of the GNU General Public Licence,
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# either version 2, or (at your option) any later version.
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import glob
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import os
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import re
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import shutil
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import subprocess
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import sys
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import tempfile
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from urllib.request import HTTPError
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from . import checker as osc_checker
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from . import conf
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from . import oscerr
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from .core import makeurl, dgst
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from .grabber import OscFileGrabber, OscMirrorGroup
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from .meter import create_text_meter
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from .util import packagequery, cpio
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from .util.helper import decode_it
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class Fetcher:
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def __init__(self, cachedir='/tmp', urllist=None,
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http_debug=False, cookiejar=None, offline=False,
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enable_cpio=True, modules=None, download_api_only=False):
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# set up progress bar callback
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self.progress_obj = None
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if sys.stdout.isatty():
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self.progress_obj = create_text_meter(use_pb_fallback=False)
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self.cachedir = cachedir
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# generic download URL lists
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self.urllist = urllist or []
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self.modules = modules or []
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self.http_debug = http_debug
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self.offline = offline
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self.cpio = {}
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self.enable_cpio = enable_cpio
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self.download_api_only = download_api_only
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self.gr = OscFileGrabber(progress_obj=self.progress_obj)
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def __add_cpio(self, pac):
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prpap = f'{pac.project}/{pac.repository}/{pac.repoarch}/{pac.repopackage}'
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self.cpio.setdefault(prpap, {})[pac.repofilename] = pac
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def __download_cpio_archive(self, apiurl, project, repo, arch, package, **pkgs):
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if not pkgs:
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return
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query = {}
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query["binary"] = pkgs
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query["view"] = "cpio"
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query["module"] = self.modules
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try:
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url = makeurl(apiurl, ['build', project, repo, arch, package], query=query)
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sys.stdout.write("preparing download ...\r")
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sys.stdout.flush()
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with tempfile.NamedTemporaryFile(prefix='osc_build_cpio') as tmparchive:
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self.gr.urlgrab(url, filename=tmparchive.name,
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text=f'fetching packages for \'{project}\'')
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archive = cpio.CpioRead(tmparchive.name)
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archive.read()
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for hdr in archive:
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# XXX: we won't have an .errors file because we're using
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# getbinarylist instead of the public/... route
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# (which is routed to getbinaries)
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# getbinaries does not support kiwi builds
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if hdr.filename == b'.errors':
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archive.copyin_file(hdr.filename)
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raise oscerr.APIError('CPIO archive is incomplete '
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'(see .errors file)')
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if package == '_repository':
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n = re.sub(br'\.pkg\.tar\.(zst|.z)$', b'.arch', hdr.filename)
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if n.startswith(b'container:'):
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n = re.sub(br'\.tar\.(zst|.z)$', b'.tar', hdr.filename)
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pac = pkgs[decode_it(n.rsplit(b'.', 1)[0])]
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pac.canonname = hdr.filename
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else:
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pac = pkgs[decode_it(n.rsplit(b'.', 1)[0])]
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else:
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# this is a kiwi product
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pac = pkgs[decode_it(hdr.filename)]
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# Extract a single file from the cpio archive
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fd = None
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tmpfile = None
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try:
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fd, tmpfile = tempfile.mkstemp(prefix='osc_build_file')
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archive.copyin_file(hdr.filename,
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decode_it(os.path.dirname(tmpfile)),
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decode_it(os.path.basename(tmpfile)))
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self.move_package(tmpfile, pac.localdir, pac)
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finally:
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if fd is not None:
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os.close(fd)
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if tmpfile is not None and os.path.exists(tmpfile):
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os.unlink(tmpfile)
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for pac in pkgs.values():
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if not os.path.isfile(pac.fullfilename):
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raise oscerr.APIError('failed to fetch file \'%s\': '
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'missing in CPIO archive' %
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pac.repofilename)
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except HTTPError as e:
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if e.code != 414:
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raise
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# query str was too large
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keys = list(pkgs.keys())
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if len(keys) == 1:
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raise oscerr.APIError('unable to fetch cpio archive: '
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'server always returns code 414')
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n = int(len(pkgs) / 2)
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new_pkgs = {k: pkgs[k] for k in keys[:n]}
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self.__download_cpio_archive(apiurl, project, repo, arch,
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package, **new_pkgs)
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new_pkgs = {k: pkgs[k] for k in keys[n:]}
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self.__download_cpio_archive(apiurl, project, repo, arch,
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package, **new_pkgs)
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def __fetch_cpio(self, apiurl):
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for prpap, pkgs in self.cpio.items():
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project, repo, arch, package = prpap.split('/', 3)
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self.__download_cpio_archive(apiurl, project, repo, arch, package, **pkgs)
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def fetch(self, pac, prefix=''):
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# for use by the failure callback
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self.curpac = pac
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mg = OscMirrorGroup(self.gr, pac.urllist)
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if self.http_debug:
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print(f'\nURLs to try for package \'{pac}\':', file=sys.stderr)
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print('\n'.join(pac.urllist), file=sys.stderr)
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print(file=sys.stderr)
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try:
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with tempfile.NamedTemporaryFile(prefix='osc_build',
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delete=False) as tmpfile:
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mg_stat = mg.urlgrab(pac.filename, filename=tmpfile.name,
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text=f'{prefix}({pac.project}) {pac.filename}')
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if mg_stat:
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self.move_package(tmpfile.name, pac.localdir, pac)
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if not mg_stat:
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if self.enable_cpio:
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print('%s/%s: attempting download from api, since not found'
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% (pac.project, pac.name))
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self.__add_cpio(pac)
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return
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print()
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print('Error: Failed to retrieve %s from the following locations '
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'(in order):' % pac.filename, file=sys.stderr)
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print('\n'.join(pac.urllist), file=sys.stderr)
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sys.exit(1)
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finally:
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if os.path.exists(tmpfile.name):
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os.unlink(tmpfile.name)
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def move_package(self, tmpfile, destdir, pac_obj=None):
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canonname = None
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if pac_obj and pac_obj.name.startswith('container:'):
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canonname = pac_obj.canonname
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if canonname is None:
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pkgq = packagequery.PackageQuery.query(tmpfile, extra_rpmtags=(1044, 1051, 1052))
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if pkgq:
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canonname = pkgq.canonname()
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else:
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if pac_obj is None:
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print('Unsupported file type: ', tmpfile, file=sys.stderr)
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sys.exit(1)
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canonname = pac_obj.binary
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decoded_canonname = decode_it(canonname)
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if b'/' in canonname or '/' in decoded_canonname:
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raise oscerr.OscIOError(None, 'canonname contains a slash')
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fullfilename = os.path.join(destdir, decoded_canonname)
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if pac_obj is not None:
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pac_obj.canonname = canonname
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pac_obj.fullfilename = fullfilename
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shutil.move(tmpfile, fullfilename)
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os.chmod(fullfilename, 0o644)
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def dirSetup(self, pac):
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dir = os.path.join(self.cachedir, pac.localdir)
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if not os.path.exists(dir):
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try:
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os.makedirs(dir, mode=0o755)
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except OSError as e:
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print('packagecachedir is not writable for you?', file=sys.stderr)
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print(e, file=sys.stderr)
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sys.exit(1)
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def _build_urllist(self, buildinfo, pac):
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if self.download_api_only:
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return []
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urllist = self.urllist
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key = f'{pac.project}/{pac.repository}'
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project_repo_url = buildinfo.urls.get(key)
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if project_repo_url is not None:
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urllist = [project_repo_url]
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return urllist
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def run(self, buildinfo):
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apiurl = buildinfo.apiurl
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cached = 0
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all = len(buildinfo.deps)
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for i in buildinfo.deps:
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urllist = self._build_urllist(buildinfo, i)
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i.makeurls(self.cachedir, urllist)
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# find container extension by looking in the cache
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if i.name.startswith('container:') and i.fullfilename.endswith('.tar.xz'):
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for ext in ['.tar.xz', '.tar.gz', '.tar']:
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if os.path.exists(i.fullfilename[:-7] + ext):
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i.canonname = i.canonname[:-7] + ext
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i.makeurls(self.cachedir, urllist)
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if os.path.exists(i.fullfilename):
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cached += 1
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if not i.name.startswith('container:') and i.pacsuffix != 'rpm':
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continue
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hdrmd5_is_valid = True
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if i.hdrmd5:
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if i.name.startswith('container:'):
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hdrmd5 = dgst(i.fullfilename)
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if hdrmd5 != i.hdrmd5:
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hdrmd5_is_valid = False
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else:
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hdrmd5 = packagequery.PackageQuery.queryhdrmd5(i.fullfilename)
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if hdrmd5 != i.hdrmd5:
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if conf.config["api_host_options"][apiurl]["disable_hdrmd5_check"]:
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print(f"Warning: Ignoring a hdrmd5 mismatch for {i.fullfilename}: {hdrmd5} (actual) != {i.hdrmd5} (expected)")
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hdrmd5_is_valid = True
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else:
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print(f"The file will be redownloaded from the API due to a hdrmd5 mismatch for {i.fullfilename}: {hdrmd5} (actual) != {i.hdrmd5} (expected)")
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hdrmd5_is_valid = False
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if not hdrmd5_is_valid:
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os.unlink(i.fullfilename)
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cached -= 1
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miss = 0
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needed = all - cached
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if all:
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miss = 100.0 * needed / all
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print("%.1f%% cache miss. %d/%d dependencies cached.\n" % (miss, cached, all))
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done = 1
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for i in buildinfo.deps:
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if not os.path.exists(i.fullfilename):
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if self.offline:
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raise oscerr.OscIOError(None,
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'Missing \'%s\' in cache: '
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'--offline not possible.' %
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i.fullfilename)
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self.dirSetup(i)
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try:
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# if there isn't a progress bar, there is no output at all
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prefix = ''
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if not self.progress_obj:
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print('%d/%d (%s) %s' % (done, needed, i.project, i.filename))
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else:
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prefix = '[%d/%d] ' % (done, needed)
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self.fetch(i, prefix=prefix)
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if not os.path.isfile(i.fullfilename):
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# if the file wasn't downloaded and cannot be found on disk,
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# mark it for downloading from the API
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self.__add_cpio(i)
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else:
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hdrmd5 = packagequery.PackageQuery.queryhdrmd5(i.fullfilename)
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if hdrmd5 != i.hdrmd5:
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if conf.config["api_host_options"][apiurl]["disable_hdrmd5_check"]:
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print(f"Warning: Ignoring a hdrmd5 mismatch for {i.fullfilename}: {hdrmd5} (actual) != {i.hdrmd5} (expected)")
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else:
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print(f"The file will be redownloaded from the API due to a hdrmd5 mismatch for {i.fullfilename}: {hdrmd5} (actual) != {i.hdrmd5} (expected)")
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os.unlink(i.fullfilename)
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self.__add_cpio(i)
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except KeyboardInterrupt:
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print('Cancelled by user (ctrl-c)')
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print('Exiting.')
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sys.exit(0)
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done += 1
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self.__fetch_cpio(buildinfo.apiurl)
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prjs = list(buildinfo.projects.keys())
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for prj in prjs:
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dest = os.path.join(self.cachedir, prj)
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pubkey_path_base = os.path.join(dest, "_pubkey")
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pubkey_paths = glob.glob(f"{pubkey_path_base}*")
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if self.offline:
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# we're offline, only index the keys found on disk
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if pubkey_paths:
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for pubkey_path in pubkey_paths:
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buildinfo.keys.append(pubkey_path)
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buildinfo.prjkeys.append(prj)
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continue
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from . import obs_api
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os.makedirs(dest, mode=0o755, exist_ok=True)
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pubkeys = []
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try:
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keyinfo = obs_api.Keyinfo.from_api(buildinfo.apiurl, prj)
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for pubkey in keyinfo.pubkey_list or []:
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pubkeys.append(pubkey.value)
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except HTTPError as e:
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result = obs_api.Keyinfo.get_pubkey_deprecated(buildinfo.apiurl, prj, traverse=True)
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if result:
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# overwrite ``prj`` with the project that contains the key we're using
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prj, pubkey = result
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pubkeys.append(pubkey)
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# remove the existing files, we'll create new files with new contents
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for pubkey_path in pubkey_paths:
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os.unlink(pubkey_path)
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if pubkeys:
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for num, pubkey in enumerate(pubkeys):
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pubkey_path = f"{pubkey_path_base}-{num}"
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with open(pubkey_path, "w") as f:
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f.write(pubkey)
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buildinfo.keys.append(pubkey_path)
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if prj not in buildinfo.prjkeys:
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buildinfo.prjkeys.append(prj)
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def verify_pacs_old(pac_list):
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"""Take a list of rpm filenames and run rpm -K on them.
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In case of failure, exit.
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Check all packages in one go, since this takes only 6 seconds on my Athlon 700
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instead of 20 when calling 'rpm -K' for each of them.
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"""
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if not pac_list:
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return
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# don't care about the return value because we check the
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# output anyway, and rpm always writes to stdout.
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# save locale first (we rely on English rpm output here)
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saved_LC_ALL = os.environ.get('LC_ALL')
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os.environ['LC_ALL'] = 'en_EN'
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o = subprocess.Popen(['rpm', '-K'] + pac_list, stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT, close_fds=True).stdout
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# restore locale
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if saved_LC_ALL:
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os.environ['LC_ALL'] = saved_LC_ALL
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else:
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os.environ.pop('LC_ALL')
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for line in o.readlines():
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if 'OK' not in line:
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print()
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print('The following package could not be verified:', file=sys.stderr)
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print(line, file=sys.stderr)
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sys.exit(1)
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if 'NOT OK' in line:
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print()
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print('The following package could not be verified:', file=sys.stderr)
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print(line, file=sys.stderr)
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if 'MISSING KEYS' in line:
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missing_key = line.split('#')[-1].split(')')[0]
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print("""
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- If the key (%(name)s) is missing, install it first.
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For example, do the following:
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osc signkey PROJECT > file
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and, as root:
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rpm --import %(dir)s/keyfile-%(name)s
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Then, just start the build again.
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- If you do not trust the packages, you should configure osc build for XEN or KVM
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- You may use --no-verify to skip the verification (which is a risk for your system).
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""" % {'name': missing_key,
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'dir': os.path.expanduser('~')}, file=sys.stderr)
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else:
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print("""
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- If the signature is wrong, you may try deleting the package manually
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and re-run this program, so it is fetched again.
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""", file=sys.stderr)
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sys.exit(1)
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def verify_pacs(bi):
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"""Take a list of rpm filenames and verify their signatures.
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In case of failure, exit.
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"""
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pac_list = [i.fullfilename for i in bi.deps]
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if conf.config['builtin_signature_check'] is not True:
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return verify_pacs_old(pac_list)
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if not pac_list:
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return
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if not bi.keys:
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raise oscerr.APIError("can't verify packages due to lack of GPG keys")
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print("using keys from", ', '.join(bi.prjkeys))
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failed = False
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checker = osc_checker.Checker()
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try:
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checker.readkeys(bi.keys)
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for pkg in pac_list:
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try:
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checker.check(pkg)
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except Exception as e:
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failed = True
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print(pkg, ':', e)
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except:
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checker.cleanup()
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raise
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if failed:
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checker.cleanup()
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sys.exit(1)
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checker.cleanup()
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# vim: sw=4 et
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