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#!/usr/bin/python
# Copyright (C) 2011, 2012 Canonical Ltd.
# Author: Martin Pitt <martin.pitt@ubuntu.com>
# 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; version 3 of the License.
#
# 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, see <http://www.gnu.org/licenses/>.
# Generate a HTML report of current NBS binary packages from a checkrdepends
# output directory
from __future__ import print_function
from collections import defaultdict
import os
import sys
import time
if len(sys.argv) != 2:
print('Usage: %s <checkrdepends output dir>' % sys.argv[0],
file=sys.stderr)
sys.exit(1)
def parse_checkrdepends_file(path, pkgmap):
'''Parse one checkrdepends file into the NBS map'''
cur_component = None
cur_arch = None
with open(path) as f:
for line in f:
if line.startswith('-- '):
(cur_component, cur_arch) = line.split('/', 1)[1].split()[:2]
continue
assert cur_component
assert cur_arch
rdep = line.strip().split()[0]
pkgmap.setdefault(rdep, (cur_component, []))[1].append(cur_arch)
def _pkg_removable(pkg, nbs, checked_v):
'''Recursively check if pakcage is removable.
checked_v is the working set of already checked vertices, to avoid infinite
loops.
'''
checked_v.add(pkg)
for rdep in nbs.get(pkg, []):
if rdep in checked_v:
continue
#checked_v.add(rdep)
if not rdep in nbs:
try:
checked_v.remove(rdep)
except KeyError:
pass
return False
if not _pkg_removable(rdep, nbs, checked_v):
try:
checked_v.remove(rdep)
except KeyError:
pass
return False
return True
def get_removables(nbs):
'''Get set of removable packages.
This includes packages with no rdepends and disconnected subgraphs, i. e.
clusters of NBS packages which only depend on each other.
'''
removable = set()
for p in nbs:
if p in removable:
continue
checked_v = set()
if _pkg_removable(p, nbs, checked_v):
# we can add the entire cluster here, not just p; avoids
# re-checking the other vertices in that cluster
removable.update(checked_v)
return removable
def html_report(nbs, removables):
'''Generate HTML report from NBS map.'''
print('''\
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>NBS packages</title>
<style type="text/css">
body { background: #CCCCB0; color: black; }
a { text-decoration: none; }
table { border-collapse: collapse; border-style: none none;
margin-bottom: 3ex; empty-cells: show; }
table th { text-align: left; border-style: solid none none none;
border-width: 3px; padding-right: 10px; }
table td { vertical-align:top; text-align: left; border-style: dotted none;
border-width: 1px; padding-right: 10px; }
.normal { }
.removable { color: green; font-weight: bold; }
.nbs { color: blue; }
.componentsup { font-size: 70%; color: red; font-weight: bold; }
.componentunsup { font-size: 70%; color: darkred; }
</style>
</head>
<body>
<h1>NBS: Binary packages not built from any source</h1>
<h2>Archive Administrator commands</h2>
<p>Run this command to remove NBS packages which are not required any more:</p>
''')
print('<p style="font-family: monospace">remove-package -m NBS -b -y %s'
'</p>' % ' '.join(sorted(removables)))
print('''
<h2>Reverse dependencies</h2>
<p><span class="nbs">Reverse dependencies which are NBS themselves</span><br/>
<span class="removable">NBS package which can be removed safely</span></p>
<table>
''')
reverse_nbs = defaultdict(list) # non_nbs_pkg -> [nbspkg1, ...]
pkg_component = {} # non_nbs_pkg -> (component, component_class)
for pkg in sorted(nbs):
nbsmap = nbs[pkg]
if pkg in removables:
cls = 'removable'
else:
cls = 'normal'
print('<tr><th colspan="4"><span class="%s">%s</span></td></tr>' %
(cls, pkg), end="")
for rdep in sorted(nbsmap):
(component, arches) = nbsmap[rdep]
if component in ('main', 'restricted'):
component_cls = 'sup'
else:
component_cls = 'unsup'
if rdep in nbs:
if rdep in removables:
cls = 'removable'
else:
cls = 'nbs'
else:
cls = 'normal'
reverse_nbs[rdep].append(pkg)
pkg_component[rdep] = (component, component_cls)
print('<tr><td> </td>', end='')
print('<td><span class="%s">%s</span></td> ' % (cls, rdep), end='')
print('<td><span class="component%s">%s</span></td>' %
(component_cls, component), end='')
print('<td>%s</td></tr>' % ' '.join(arches))
print('''</table>
<h2>Packages which depend on NBS packages</h2>
<table>''')
def sort_rev_nbs(k1, k2):
len_cmp = cmp(len(reverse_nbs[k1]), len(reverse_nbs[k2]))
if len_cmp == 0:
return cmp(k1, k2)
else:
return -len_cmp
for pkg in sorted(reverse_nbs, cmp=sort_rev_nbs):
print('<tr><td>%s</td> '
'<td><span class="component%s">%s</span></td><td>' % (
pkg, pkg_component[pkg][1], pkg_component[pkg][0]), end="")
print(" ".join(sorted(reverse_nbs[pkg])), end="")
print('</td></tr>')
print('</table>')
print('<p><small>Generated at %s.</small></p>' %
time.strftime('%Y-%m-%d %H:%M:%S %Z'))
print('</body></html>')
#
# main
#
nbs = defaultdict(dict) # pkg -> rdep_pkg -> (component, [arch1, arch2, ...])
for f in os.listdir(sys.argv[1]):
if f.startswith('.') or f.endswith('.html'):
continue
parse_checkrdepends_file(os.path.join(sys.argv[1], f), nbs[f])
#with open('/tmp/dot', 'w') as dot:
# print('digraph {', file=dot)
# print(' ratio 0.1', file=dot)
# pkgnames = set(nbs)
# for m in nbs.itervalues():
# pkgnames.update(m)
# for n in pkgnames:
# print(' %s [label="%s"' % (n.replace('-', '').replace('.', ''), n),
# end="", file=dot)
# if n in nbs:
# print(', style="filled", fillcolor="lightblue"', end="", file=dot)
# print(']', file=dot)
# print(file=dot)
# for pkg, map in nbs.iteritems():
# for rd in map:
# print(' %s -> %s' % (
# pkg.replace('-', '').replace('.', ''),
# rd.replace('-', '').replace('.', '')), file=dot)
# print('}', file=dot)
removables = get_removables(nbs)
html_report(nbs, removables)
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