#!/usr/bin/python -tt
# -*- coding: utf-8 -*-

# debugrepo-check.py -- basic checks for -debuginfo rpms in repositories
# Copyright (C) 2007-2009 Ville Skyttä <ville.skytta@iki.fi>
#
# 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.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

import sys

from yum import YumBase
from yum.misc import getCacheDir

def usage(exit):
    usage = "Usage: %s <repoid>..." % sys.argv[0]
    if exit != 0:
        sys.stderr.write(usage + "\n")
    else:
        print usage
    sys.exit(exit)

if "-h" in sys.argv or "--help" in sys.argv:
    usage(0)
elif len(sys.argv) < 2:
    usage(1)

do_repos = sys.argv[1:]

print
print "Checking debug packages in repos %s" % ", ".join(do_repos)

yum = YumBase()
yum.doConfigSetup(init_plugins = False)

for repo in yum.repos.repos.values():
    if repo.id in do_repos:
        repo.enable()
    else:
        repo.disable()

yum.repos.setCacheDir(getCacheDir())
yum.doRepoSetup()
yum.doSackSetup()
yum.doSackFilelistPopulate()

empties = []
nodbgs = []
nosrcs = []
oks = []

for po in yum.pkgSack.returnNewestByNameArch(patterns=("*-debuginfo",)):

    filenames = po.returnFileEntries()
    if filenames:
        src = False
        dbg = False
        for fname in filenames:
            # Ignore stuff below .../.build-id, they're typically just symlinks
            # to other actual files in the package (metadata doesn't contain
            # information whether a file entry is a symlink)
            if fname.find("/.build-id/") != -1:
                continue

            if fname.endswith(".debug"):
                dbg = True
            else:
                src = True
            if dbg and src:
                oks.append(po)
                break
        if dbg and not src:
            nosrcs.append(po)
        elif not dbg:
            nodbgs.append(po)
    else:
        empties.append(po)

print
if empties:
    empties.sort()
    print "Empty debuginfo packages:"
    print "    " + "\n    ".join(map(str, empties))
    print
if nodbgs:
    nodbgs.sort()
    print "Debuginfo packages without .debug files:"
    print "    " + "\n    ".join(map(str, nodbgs))
    print
if nosrcs:
    nosrcs.sort()
    print "Debuginfo packages without sources:"
    print "    " + "\n    ".join(map(str, nosrcs))
    print

total = len(empties) + len(oks) + len(nosrcs) + len(nodbgs)
print "Results:"
print "    %d debuginfo packages, %d empty, %d with no sources." % \
      (total, len(empties), len(nosrcs))
print