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author | Narayan Desai <desai@mcs.anl.gov> | 2009-01-21 03:05:02 +0000 |
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committer | Narayan Desai <desai@mcs.anl.gov> | 2009-01-21 03:05:02 +0000 |
commit | 3bcf91228018e73a6ab89c31925ad605e71573cf (patch) | |
tree | ef345d3a09b828a13e38c03fce502414166500cf /src/lib/Server/Plugins | |
parent | 23c4acb48ec06594557a0dbc7246bb0015345823 (diff) | |
download | bcfg2-3bcf91228018e73a6ab89c31925ad605e71573cf.tar.gz bcfg2-3bcf91228018e73a6ab89c31925ad605e71573cf.tar.bz2 bcfg2-3bcf91228018e73a6ab89c31925ad605e71573cf.zip |
Infrastructure and initial implementation of the Packages plugin
git-svn-id: https://svn.mcs.anl.gov/repos/bcfg/trunk/bcfg2@5029 ce84e21b-d406-0410-9b95-82705330c041
Diffstat (limited to 'src/lib/Server/Plugins')
-rw-r--r-- | src/lib/Server/Plugins/Packages.py | 159 | ||||
-rw-r--r-- | src/lib/Server/Plugins/SSHbase.py | 2 | ||||
-rw-r--r-- | src/lib/Server/Plugins/__init__.py | 2 |
3 files changed, 161 insertions, 2 deletions
diff --git a/src/lib/Server/Plugins/Packages.py b/src/lib/Server/Plugins/Packages.py new file mode 100644 index 000000000..e136d71ff --- /dev/null +++ b/src/lib/Server/Plugins/Packages.py @@ -0,0 +1,159 @@ +import copy, gzip, lxml.etree, re, urllib +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' + 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: + 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']]: + 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') diff --git a/src/lib/Server/Plugins/SSHbase.py b/src/lib/Server/Plugins/SSHbase.py index edebd0899..4ca2fdf51 100644 --- a/src/lib/Server/Plugins/SSHbase.py +++ b/src/lib/Server/Plugins/SSHbase.py @@ -99,7 +99,7 @@ class SSHbase(Bcfg2.Server.Plugin.Plugin, if (len(self.entries.keys())) > (0.95 * len(os.listdir(self.data))): _ = self.skn - def HandlesEntry(self, entry): + def HandlesEntry(self, entry, _): '''Handle key entries dynamically''' return entry.tag == 'ConfigFile' and \ ([fpat for fpat in self.keypatterns diff --git a/src/lib/Server/Plugins/__init__.py b/src/lib/Server/Plugins/__init__.py index 22b16a7a0..8fcb34fc6 100644 --- a/src/lib/Server/Plugins/__init__.py +++ b/src/lib/Server/Plugins/__init__.py @@ -2,6 +2,6 @@ __revision__ = '$Revision$' __all__ = ['Account', 'Base', 'Bundler', 'Cfg', 'Decisions', 'GBundler', - 'Hostbase', 'Metadata', 'NagiosGen', 'Probes', + 'Hostbase', 'Metadata', 'NagiosGen', 'Packages', 'Probes', 'Pkgmgr', 'Rules', 'SSHbase', 'Statistics', 'Svcmgr', 'TCheetah', 'SGenshi', 'TGenshi', 'Vhost'] |