diff options
Diffstat (limited to 'src/lib/Bcfg2/Server/Plugins/Packages/Apt.py')
-rw-r--r-- | src/lib/Bcfg2/Server/Plugins/Packages/Apt.py | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/src/lib/Bcfg2/Server/Plugins/Packages/Apt.py b/src/lib/Bcfg2/Server/Plugins/Packages/Apt.py new file mode 100644 index 000000000..cbe2b4f2c --- /dev/null +++ b/src/lib/Bcfg2/Server/Plugins/Packages/Apt.py @@ -0,0 +1,141 @@ +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' + essentialpkgs = set() + + def __init__(self, basepath, xsource, config): + Source.__init__(self, basepath, xsource, config) + self.pkgnames = set() + + self.url_map = [{'rawurl': self.rawurl, 'url': self.url, + 'version': self.version, + 'components': self.components, 'arches': self.arches}] + + def save_state(self): + cache = file(self.cachefile, 'wb') + cPickle.dump((self.pkgnames, self.deps, self.provides), + cache, 2) + cache.close() + + def load_state(self): + data = file(self.cachefile) + self.pkgnames, self.deps, self.provides = 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() + bprov = dict() + depfnames = ['Depends', 'Pre-Depends'] + if self.recommended: + depfnames.append('Recommends') + 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() + bprov[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] = [] + elif words[0] == 'Essential' and self.essential: + self.essentialpkgs.add(pkgname) + elif words[0] in depfnames: + 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 + bdeps[barch][pkgname].append(dyn_dname) + bprov[barch][dyn_dname] = set(cdeps) + else: + raw_dep = re.sub('\(.*\)', '', dep) + raw_dep = raw_dep.rstrip().strip() + 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) + + self.deps['global'] = dict() + self.provides['global'] = dict() + for barch in bdeps: + self.deps[barch] = dict() + self.provides[barch] = dict() + for pkgname in self.pkgnames: + pset = 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] + 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 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)) |