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#!/usr/bin/python3
# Copyright (C) 2011, 2012 Canonical Ltd.
# Author: Martin Pitt <martin.pitt@ubuntu.com>
# Author: Brian Murray <brian@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 collections import defaultdict
import csv
import functools
from optparse import OptionParser
import os
import sys
import time
from charts import make_chart, make_chart_header
from utils import read_tag_file
default_base = '/home/ubuntu-archive/mirror/ubuntu'
rdeps_with_alternates = []
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(options, pkg, nbs, checked_v):
'''Recursively check if package is removable.
checked_v is the working set of already checked vertices, to avoid infinite
loops.
'''
checked_v.add(pkg)
packages = {}
for rdep in nbs.get(pkg, []):
if rdep in checked_v:
continue
global rdeps_with_alternates
# utilize a copy of the arches as nbs will be modified
arches = list(nbs[pkg][rdep][1])
for arch in arches:
alternate_available = False
if arch == 'build':
ptype = 'source'
file = 'Sources'
else:
ptype = 'binary-%s' % arch
file = 'Packages'
key = '%s/dists/%s/%s/%s/%s.gz' % \
(options.archive_base, options.suite, nbs[pkg][rdep][0],
ptype, file)
if key not in packages:
packages[key] = read_tag_file(key, rdep)
stanzas = packages[key]
for stanza in stanzas:
if 'binary' in ptype:
fields = ('Pre-Depends', 'Depends', 'Recommends')
else:
fields = ('Build-Depends', 'Build-Depends-Indep')
for field in fields:
if field not in stanza:
continue
if '|' not in stanza[field]:
continue
for or_dep in stanza[field].split(','):
if '|' not in or_dep:
continue
alternatives = [dep.strip()
for dep in or_dep.split('|')]
if pkg not in alternatives:
continue
for dep in alternatives:
if dep == pkg:
continue
if dep not in nbs:
alternate_available = True
break
if alternate_available:
nbs[pkg][rdep][1].remove(arch)
if len(nbs[pkg][rdep][1]) == 0:
rdeps_with_alternates.append(rdep)
if rdep not in nbs and rdep not in rdeps_with_alternates:
try:
checked_v.remove(rdep)
except KeyError:
pass
return False
if not _pkg_removable(options, rdep, nbs, checked_v):
try:
checked_v.remove(rdep)
except KeyError:
pass
return False
return True
def get_removables(options, 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(options, p, nbs, checked_v):
# we only add packages which are nbs to removable
removable.update([p for p in checked_v if p in nbs])
return removable
def html_report(options, nbs, removables):
'''Generate HTML report from NBS map.'''
global rdeps_with_alternates
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>
%s
</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>
''' % make_chart_header())
print('<p style="font-family: monospace">remove-package -m NBS '
'-d %s -s %s -b -y %s</p>' %
(options.distribution, options.suite, ' '.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></th></tr>\n' %
(cls, pkg), end="")
for rdep in sorted(nbsmap):
if rdep in rdeps_with_alternates:
continue
(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):
def cmp(a, b):
return (a > b) - (a < b)
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, key=functools.cmp_to_key(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>')
if options.csv_file is not None:
print("<h2>Over time</h2>")
print(make_chart(
os.path.basename(options.csv_file), ["removable", "total"]))
print('<p><small>Generated at %s.</small></p>' %
time.strftime('%Y-%m-%d %H:%M:%S %Z', time.gmtime(options.time)))
print('</body></html>')
def main():
parser = OptionParser(
usage="%prog <checkrdepends output directory>",
description="Generate an HTML report of current NBS binary packages.")
parser.add_option('-B', '--archive-base', dest='archive_base',
help=('archive base directory (default: %s)' %
default_base),
default=default_base)
parser.add_option('-d', '--distribution', default='ubuntu')
parser.add_option('-s', '--suite', default='hirsute')
parser.add_option(
'--csv-file', help='record CSV time series data in this file')
options, args = parser.parse_args()
if len(args) != 1:
parser.error("need a checkrdepends output directory")
options.time = time.time()
# pkg -> rdep_pkg -> (component, [arch1, arch2, ...])
nbs = defaultdict(dict)
for f in os.listdir(args[0]):
if f.startswith('.') or f.endswith('.html'):
continue
parse_checkrdepends_file(os.path.join(args[0], 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(options, nbs)
html_report(options, nbs, removables)
if options.csv_file is not None:
if sys.version < "3":
open_mode = "ab"
open_kwargs = {}
else:
open_mode = "a"
open_kwargs = {"newline": ""}
csv_is_new = not os.path.exists(options.csv_file)
with open(options.csv_file, open_mode, **open_kwargs) as csv_file:
# Field names deliberately hardcoded; any changes require
# manually rewriting the output file.
fieldnames = [
"time",
"removable",
"total",
]
csv_writer = csv.DictWriter(csv_file, fieldnames)
if csv_is_new:
csv_writer.writeheader()
csv_writer.writerow({
"time": int(options.time * 1000),
"removable": len(removables),
"total": len(nbs),
})
if __name__ == '__main__':
main()
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