1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
import copy, gzip, lxml.etree, re, urllib
import os
import Bcfg2.Server.Plugin
# build sources.list?
# caching
# pinning
def apt_source_from_xml(xsource):
ret = dict()
for key, tag in [('groups', 'Group'), ('components', 'Component'),
('arches', 'Arch')]:
ret[key] = [item.text for item in xsource.findall(tag)]
ret['version'] = xsource.find('Version').text
ret['url'] = xsource.find('URL').text
return ret
class APTSource(object):
def __init__(self, basepath, url, version, arches, components, groups):
self.basepath = basepath
self.version = version
self.components = components
self.url = url
self.urls = ["%s/dists/%s/%s/binary-%s/Packages.gz" % \
(url, version, part, arch) for part in components \
for arch in arches]
self.files = [self.mk_fname(url) for url in self.urls]
self.groups = groups
self.deps = dict()
def get_aptsrc(self):
return ["deb %s %s %s" % (self.url, self.version,
" ".join(self.components)),
"deb-src %s %s %s" % (self.url, self.version,
" ".join(self.components))]
def mk_fname(self, url):
return "%s/%s" % (self.basepath, url.replace('/', '_'))
def read_files(self):
bdeps = dict()
for fname in self.files:
bin = [x for x in fname.split('_') if x.startswith('binary-')][0][7:]
if bin not in bdeps:
bdeps[bin] = dict()
reader = gzip.GzipFile(fname)
for line in reader.readlines():
words = line.strip().split(':', 1)
if words[0] == 'Package':
pkgname = words[1].strip().rstrip()
elif words[0] == 'Depends':
bdeps[bin][pkgname] = []
for dep in words[1].split(','):
raw_dep = re.sub('\(.*\)', '', dep)
if '|' in raw_dep:
# FIXME hack alert
raw_dep = raw_dep.split('|')[0]
raw_dep = raw_dep.rstrip().strip()
bdeps[bin][pkgname].append(raw_dep)
pkgnames = set()
self.deps['global'] = dict()
for bin in bdeps:
[pkgnames.add(pname) for pname in bdeps[bin]]
self.deps[bin] = dict()
for pkgname in pkgnames:
pset = set()
for bin in bdeps:
if pkgname not in bdeps[bin]:
bdeps[bin][pkgname] = []
pset.add(tuple(bdeps[bin][pkgname]))
if len(pset) == 1:
self.deps['global'][pkgname] = pset.pop()
else:
for bin in bdeps:
self.deps[bin][pkgname] = bdeps[bin][pkgname]
def update(self):
for url in self.urls:
print "updating", url
fname = self.mk_fname(url)
data = urllib.urlopen(url).read()
output = file(fname, 'w').write(data)
def applies(self, metadata):
return len([g for g in metadata.groups if g in self.groups]) \
== len(self.groups)
def get_deps(self, metadata, pkgname):
if pkgname in self.deps['global']:
return self.deps['global'][pkgname]
for arch in [ar for ar in self.deps if ar in metadata.groups]:
if pkgname in self.deps[arch]:
return self.deps[arch][pkgname]
return False
class Packages(Bcfg2.Server.Plugin.Plugin,
Bcfg2.Server.Plugin.StructureValidator,
Bcfg2.Server.Plugin.Generator):
name = 'Packages'
def __init__(self, core, datastore):
Bcfg2.Server.Plugin.Plugin.__init__(self, core, datastore)
Bcfg2.Server.Plugin.StructureValidator.__init__(self)
Bcfg2.Server.Plugin.Generator.__init__(self)
cachepath = self.data + '/cache'
if not os.path.exists(cachepath):
# create cache directory if needed
os.mkdir(cachepath)
xdata = lxml.etree.parse(self.data + '/config.xml').getroot()
self.sources = []
for s in xdata.findall('APTSource'):
self.sources.append(APTSource(cachepath, **apt_source_from_xml(s)))
for source in self.sources:
try:
source.read_files()
except:
source.update()
source.read_files()
self.pkgmap = dict()
def find_deps(self, metadata, pkgname):
for source in self.sources:
if source.applies(metadata):
deps = source.get_deps(metadata, pkgname)
if deps:
return deps
return ()
def HandlesEntry(self, entry, metadata):
if [x for x in metadata.groups if x in ['debian', 'ubuntu']] and \
entry.tag == 'Package':
return True
return False
def HandleEntry(self, entry, metadata):
entry.set('version', 'auto')
entry.set('type', 'deb')
def validate_structures(self, meta, structures):
if [g for g in meta.groups if g in ['debian', 'ubuntu']]:
ptype = 'deb'
else:
return
pkgnames = set()
for struct in structures:
for pkg in struct.findall('Package'):
pkgnames.add(pkg.get('name'))
all = copy.copy(pkgnames)
work = copy.copy(pkgnames)
new = set()
while work:
next = work.pop()
for dep in self.find_deps(meta, next):
if dep in all:
continue
else:
new.add(dep)
all.add(dep)
work.add(dep)
news = lxml.etree.Element('Independent')
for pkg in new:
lxml.etree.SubElement(news, 'BoundPackage', name=pkg,
type=ptype, version='auto')
structures.append(news)
if __name__ == '__main__':
aa = Packages(None, '/home/desai/tmp/bcfg2')
|
