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import re
import gzip
from Bcfg2.Server.Plugins.Packages.Collection import Collection
from Bcfg2.Server.Plugins.Packages.Source import Source
from Bcfg2.Bcfg2Py3k import cPickle, file
class AptCollection(Collection):
def get_group(self, group):
self.logger.warning("Packages: Package groups are not supported by APT")
return []
class AptSource(Source):
basegroups = ['apt', 'debian', 'ubuntu', 'nexenta']
ptype = 'deb'
def __init__(self, basepath, xsource, config):
Source.__init__(self, basepath, xsource, config)
self.pkgnames = set()
self.versions = dict()
self.recommends = dict()
self.url_map = [{'rawurl': self.rawurl, 'url': self.url,
'version': self.version,
'components': self.components,
'arches': self.arches,
'priority': self.priority}]
def save_state(self):
cache = file(self.cachefile, 'wb')
cPickle.dump((self.pkgnames, self.deps, self.provides,
self.versions, self.recommends),
cache, 2)
cache.close()
def load_state(self):
data = file(self.cachefile)
self.pkgnames, self.deps, self.provides, self.versions, self.recommends = cPickle.load(data)
def filter_unknown(self, unknown):
filtered = set([u for u in unknown if u.startswith('choice')])
unknown.difference_update(filtered)
def get_urls(self):
if not self.rawurl:
rv = []
for part in self.components:
for arch in self.arches:
rv.append("%sdists/%s/%s/binary-%s/Packages.gz" %
(self.url, self.version, part, arch))
return rv
else:
return ["%sPackages.gz" % self.rawurl]
urls = property(get_urls)
def read_files(self):
bdeps = dict()
brecs = dict()
bprov = dict()
self.versions = dict()
if self.recommended:
depfnames = ['Depends', 'Pre-Depends', 'Recommends']
else:
depfnames = ['Depends', 'Pre-Depends']
for fname in self.files:
if not self.rawurl:
barch = [x
for x in fname.split('@')
if x.startswith('binary-')][0][7:]
else:
# RawURL entries assume that they only have one <Arch></Arch>
# element and that it is the architecture of the source.
barch = self.arches[0]
if barch not in bdeps:
bdeps[barch] = dict()
brecs[barch] = dict()
bprov[barch] = dict()
self.versions[barch] = dict()
try:
reader = gzip.GzipFile(fname)
except:
self.logger.error("Packages: Failed to read file %s" % fname)
raise
for line in reader.readlines():
words = str(line.strip()).split(':', 1)
if words[0] == 'Package':
pkgname = words[1].strip().rstrip()
self.pkgnames.add(pkgname)
bdeps[barch][pkgname] = []
brecs[barch][pkgname] = []
elif words[0] in ['Depends', 'Pre-Depends', 'Recommends']:
vindex = 0
for dep in words[1].split(','):
if '|' in dep:
cdeps = [re.sub('\s+', '',
re.sub('\(.*\)', '', cdep))
for cdep in dep.split('|')]
dyn_dname = "choice-%s-%s-%s" % (pkgname,
barch,
vindex)
vindex += 1
if words[0] == 'Recommends':
brecs[barch][pkgname].append(dyn_dname)
else:
bdeps[barch][pkgname].append(dyn_dname)
bprov[barch][dyn_dname] = set(cdeps)
else:
raw_dep = re.sub('\(.*\)', '', dep)
raw_dep = raw_dep.rstrip().strip()
if words[0] == 'Recommends':
brecs[barch][pkgname].append(raw_dep)
else:
bdeps[barch][pkgname].append(raw_dep)
elif words[0] == 'Provides':
for pkg in words[1].split(','):
dname = pkg.rstrip().strip()
if dname not in bprov[barch]:
bprov[barch][dname] = set()
bprov[barch][dname].add(pkgname)
elif words[0] == 'Version':
self.versions[barch][pkgname] = words[1].rstrip().strip()
self.deps['global'] = dict()
self.recommends['global'] = dict()
self.provides['global'] = dict()
for barch in bdeps:
self.deps[barch] = dict()
self.recommends[barch] = dict()
self.provides[barch] = dict()
for pkgname in self.pkgnames:
pset = set()
rset = set()
for barch in bdeps:
if pkgname not in bdeps[barch]:
bdeps[barch][pkgname] = []
pset.add(tuple(bdeps[barch][pkgname]))
if len(pset) == 1:
self.deps['global'][pkgname] = pset.pop()
else:
for barch in bdeps:
self.deps[barch][pkgname] = bdeps[barch][pkgname]
for barch in brecs:
if pkgname not in brecs[barch]:
brecs[barch][pkgname] = []
rset.add(tuple(brecs[barch][pkgname]))
if len(rset) == 1:
self.recommends['global'][pkgname] = rset.pop()
else:
for barch in brecs:
self.recommends[barch][pkgname] = brecs[barch][pkgname]
provided = set()
for bprovided in list(bprov.values()):
provided.update(set(bprovided))
for prov in provided:
prset = set()
for barch in bprov:
if prov not in bprov[barch]:
continue
prset.add(tuple(bprov[barch].get(prov, ())))
if len(prset) == 1:
self.provides['global'][prov] = prset.pop()
else:
for barch in bprov:
self.provides[barch][prov] = bprov[barch].get(prov, ())
self.save_state()
def get_deps(self, metadata, pkgname, recommended=None):
recs = []
if ((recommended is None and self.recommended) or
(recommended and recommended.lower() == 'true')):
for arch in self.get_arches(metadata):
if pkgname in self.recommends[arch]:
recs.extend(self.recommends[arch][pkgname])
for arch in self.get_arches(metadata):
if pkgname in self.deps[arch]:
recs.extend(self.deps[arch][pkgname])
return recs
def is_package(self, _, pkg):
return (pkg in self.pkgnames and
pkg not in self.blacklist and
(len(self.whitelist) == 0 or pkg in self.whitelist))
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