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#!/usr/bin/python3
# vim:set fileencoding=utf-8 et ts=4 sts=4 sw=4:
#
# apt-listchanges - Show changelog entries between the installed versions
# of a set of packages and the versions contained in
# corresponding .deb files
#
# Copyright (C) 2000-2006 Matt Zimmerman <mdz@debian.org>
# Copyright (C) 2006 Pierre Habouzit <madcoder@debian.org>
# Copyright (C) 2016 Robert Luberda <robert@debian.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public
# License along with this program; if not, write to the Free
# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
import sys, os, os.path
import apt_pkg
import signal
import subprocess
import traceback
sys.path += [os.path.dirname(sys.argv[0]) + '/apt-listchanges', '/usr/share/apt-listchanges']
import ALCLog
from ALChacks import _
import apt_listchanges, DebianFiles, ALCApt, ALCConfig, ALCSeenDb
def main(config):
config.read('/etc/apt/listchanges.conf')
debs = config.getopt(sys.argv)
if config.dump_seen:
ALCSeenDb.make_seen_db(config, True).dump()
sys.exit(0);
apt_pkg.init_system()
if config.apt_mode:
debs = ALCApt.AptPipeline(config).read()
if not debs:
sys.exit(0)
# Force quiet (loggable) mode if not running interactively
if not sys.stdout.isatty() and not config.quiet:
config.quiet = 1
try:
frontend = apt_listchanges.make_frontend(config, len(debs))
except apt_listchanges.EUnknownFrontend:
ALCLog.error(_("Unknown frontend: %s") % config.frontend)
sys.exit(1)
if frontend == None:
sys.exit(0)
if frontend.needs_tty_stdin() and not sys.stdin.isatty():
try:
# Give any forked processes (eg. lynx) a normal stdin;
# See Debian Bug #343423. (Note: with $APT_HOOK_INFO_FD
# support introduced in version 3.2, stdin should point to
# a terminal already, so there should be no need to reopen it).
tty = open('/dev/tty', 'rb+', buffering=0)
os.close(0)
os.dup2(tty.fileno(), 0)
tty.close()
except Exception as ex:
ALCLog.warning(_("Cannot reopen /dev/tty for stdin: %s") % str(ex))
if not config.show_all:
status = DebianFiles.ControlParser()
status.readfile('/var/lib/dpkg/status')
status.makeindex('Package')
seen_db = ALCSeenDb.make_seen_db(config)
all_news = {}
all_changelogs = {}
all_binnmus = {}
notes = []
# Mapping of source->binary packages
source_packages = {}
# Flag for each source package, only set if changelogs were actually found
found = {}
# Main loop
for deb in debs:
pkg = DebianFiles.Package(deb)
binpackage = pkg.binary
srcpackage = pkg.source
srcversion = pkg.Version # XXX take the real version or we'll lose binNMUs
frontend.update_progress()
# Show changes later than fromversion
fromversion = None
if not config.show_all:
if srcpackage in seen_db:
fromversion = seen_db[srcpackage]
elif config.since:
fromversion = config.since
else:
statusentry = status.find('Package', binpackage)
if statusentry and statusentry.installed():
fromversion = statusentry.version()
else:
# Package not installed or seen
notes.append(_("%s: will be newly installed") % binpackage)
continue
source_packages.setdefault(srcpackage, []).append(binpackage)
# For packages with non uniform binary versions wrt the source
# version, the version reported for the binary package is the source
# one, which lacks binNMU.
#
# This is why even if we've seen a package we may miss bits of
# changelog in some odd cases
if srcpackage in found and \
apt_pkg.version_compare(srcversion, found[srcpackage]) <= 0:
continue
if not config.show_all and apt_pkg.version_compare(fromversion, srcversion) >= 0:
notes.append(_("%(pkg)s: Version %(version)s has already been seen")
% {'pkg': binpackage, 'version': srcversion})
continue
(news, changelog, binnmu) = pkg.extract_changes(config.which, fromversion, config.reverse)
if news or changelog or binnmu:
found[srcpackage] = srcversion
seen_db[srcpackage] = srcversion
if news:
all_news[srcpackage] = news
if changelog:
all_changelogs[srcpackage] = changelog
if binnmu:
all_binnmus[srcpackage] = binnmu
frontend.progress_done()
seen_db.close_db()
# Merge binnmu entries with regular changelog entries.
# Assumption: the binnmu version is greater than the last non-binnmu version.
for srcpackage in all_binnmus:
if srcpackage in all_changelogs:
all_changelogs[srcpackage].merge_binnmu(all_binnmus[srcpackage], config.reverse)
else:
all_changelogs[srcpackage] = all_binnmus[srcpackage]
all_news = list(all_news.values())
all_changelogs = list(all_changelogs.values())
for batch in (all_news, all_changelogs):
batch.sort(key=lambda x: (x.urgency, x.package))
if config.headers:
changes = ''
news = ''
for rec in all_news:
if not rec.changes:
continue
package = rec.package
header = _('News for %s') % package
if len([x for x in source_packages[package] if x != package]) > 0:
# Differing source and binary packages
header += ' (' + ' '.join(source_packages[package]) + ')'
news += '--- ' + header + ' ---\n' + rec.changes
for rec in all_changelogs:
if not rec.changes:
continue
package = rec.package
header = _('Changes for %s') % package
if len([x for x in source_packages[package] if x != package]) > 0:
# Differing source and binary packages
header += ' (' + ' '.join(source_packages[package]) + ')'
changes += '--- ' + header + ' ---\n' + rec.changes
else:
news = ''.join([x.changes for x in all_news if x.changes])
changes = ''.join([x.changes for x in all_changelogs if x.changes])
if config.verbose and len(notes) > 0:
changes += _("Informational notes") + ":\n\n" + '\n'.join(notes)
if news:
frontend.set_title( _('apt-listchanges: News') )
frontend.display_output(news)
if changes:
frontend.set_title( _('apt-listchanges: Changelogs') )
frontend.display_output(changes)
if news or changes:
apt_listchanges.confirm_or_exit(config, frontend)
hostname = subprocess.getoutput('hostname')
if apt_listchanges.can_send_emails(config):
if changes:
subject = _("apt-listchanges: changelogs for %s") % hostname
apt_listchanges.mail_changes(config, changes, subject)
if news:
subject = _("apt-listchanges: news for %s") % hostname
apt_listchanges.mail_changes(config, news, subject)
# Write out seen db
seen_db.apply_changes()
elif not config.apt_mode and not source_packages.keys():
ALCLog.error(_("Didn't find any valid .deb archives"))
sys.exit(1)
def _setup_signals():
def signal_handler(signum, frame):
ALCLog.error(_('Received signal %d, exiting') % signum)
sys.exit(apt_listchanges.BREAK_APT_EXIT_CODE)
for s in [ signal.SIGHUP, signal.SIGQUIT, signal.SIGTERM ]:
signal.signal(s, signal_handler)
if __name__ == '__main__':
_setup_signals()
config = ALCConfig.ALCConfig()
try:
main(config)
except KeyboardInterrupt:
sys.exit(apt_listchanges.BREAK_APT_EXIT_CODE)
except ALCApt.AptPipelineError as ex:
ALCLog.error(str(ex))
sys.exit(apt_listchanges.BREAK_APT_EXIT_CODE)
except ALCSeenDb.DbError as ex:
ALCLog.error(str(ex))
sys.exit(1)
except Exception:
traceback.print_exc()
apt_listchanges.confirm_or_exit(config, apt_listchanges.ttyconfirm(config))
sys.exit(1)