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#!/usr/bin/python """ TODO: * repository descriptions in kickstart format for non default repos """ import yum from optparse import OptionParser import sys __stateprefixes = { None : '# ', "mandatory" : ".", "default" : "@", "all" : "*" } def state2str(o): if isinstance(o, Group): o = o.state return __stateprefixes[o] class Group: """Additional information about a comps group""" def __init__(self, compsgroup, yum, state=None): self.id = compsgroup.groupid self.state = None self.compsgroup = compsgroup self.yum = yum self.packages = {} for n in (None, "mandatory", "default", "all"): self.packages[n] = {} for s in ("add", "exclude", "exclude_missing", "optional"): self.packages[n][s] = set() @property def add(self): """Packages that this group adds to the install""" return self.packages[self.state]["add"] @property def exclude(self): """Packages excludes from this group to match the pkg list""" return self.packages[self.state]["exclude"] @property def excludeMissing(self): """Excludes that don't have a matching pgk in the repository""" return self.packages[self.state]["exclude_missing"] @property def optional(self): """Packages in this group that are not added in the current state""" return self.packages[self.state]["optional"] @property def addons(self): """Optional packages that are not added by the group in the given state but nevertheless need to be installed""" return self.packages[self.state]["addons"] def _buildSets(self, leafpkgs, allpkgs): # handle conditionals self.conditionals = set() for name, dep in self.compsgroup.conditional_packages.iteritems(): if dep in allpkgs: self.conditionals.add(name) pkgs = self.conditionals.copy() for name, additionalpkgs in ( ("mandatory", self.compsgroup.mandatory_packages), ("default", self.compsgroup.default_packages), ("all", self.compsgroup.optional_packages)): pkgs.update(additionalpkgs) self.__checkGroup(name, pkgs, leafpkgs, allpkgs) self.__checkGroup(None, set(), leafpkgs, allpkgs) for name, d in self.packages.iteritems(): d["others"] = pkgs - d["add"] - d["exclude"] d["addons"] = d["others"] & leafpkgs def __checkGroup(self, name, pkgs, leafpkgs, allpkgs): self.packages[name]["add"] = leafpkgs & pkgs self.packages[name]["exclude"] = pkgs - allpkgs self.packages[name]["exclude_missing"] = set( pkg for pkg in self.packages[name]["exclude"] if not self.yum.pkgSack.searchNames([pkg])) return def _autodetectState(self, allowexcludes, allowed=("default",), sharedpkgs=None): """Set state of the group according to the installed packages""" win = None state = self.state for name, d in self.packages.iteritems(): if name not in allowed and name is not None: continue if not allowexcludes and d["exclude"]: continue newshared = set() if sharedpkgs: for pkg in d["add"]: if pkg in sharedpkgs and len(sharedpkgs[pkg]) > 1: newshared.add(pkg) newwin = len(d["add"]) - len(d["exclude"]) - len(newshared) - 1 if win is None or newwin > win: state = name win = newwin if win <= 0: state = None # reflect changes in sharedpkgs if state != self.state and sharedpkgs is not None: for pkg in self.packages[self.state]["add"] - self.packages[state]["add"]: if pkg in sharedpkgs: sharedpkgs[pkg].discard(self) for pkg in self.packages[state]["add"] - self.packages[self.state]["add"]: sharedpkgs.setdefault(pkg, set()).add(self) self.state = state class InstalledPackages: """Collection of packages and theit interpretation as comps groups.""" def __init__(self, yumobj=None, input=None, pkgs=None, ignore_missing=False): """ @param yumobj(optional): use this instance of YumBase @param input(optional): read package names from this file @param pkgs(optional): use this iterable of package names @param ignore_missing: exlcude packages not found in the repos """ if yumobj is None: yumobj = yum.YumBase() yumobj.preconf.debuglevel = 0 yumobj.setCacheDir() self.yum = yumobj self.groups = [] self.pkg2group = {} self.input = input self.__buildList(pkgs, ignore_missing) def __addGroup(self, group): g = Group(group, self.yum) g._buildSets(self.leaves.copy(), self.allpkgs.copy()) self.groups.append(g) def __evrTupletoVer(self,tup): """convert an evr tuple to a version string, return None if nothing to convert""" e, v, r = tup if v is None: return None val = v if e is not None: val = '%s:%s' % (e, v) if r is not None: val = '%s-%s' % (val, r) return val def __getLeaves(self, pkgnames): pkgs = set() missing = set() for name in pkgnames: try: found = self.yum.pkgSack.returnNewestByName(name) pkgs.update(found) # XXX select proper arch! except yum.Errors.PackageSackError, e: missing.add(name) nonleaves = set() for pkg in pkgs: for (req, flags, (reqe, reqv, reqr)) in pkg.returnPrco('requires'): if req.startswith('rpmlib('): continue # ignore rpmlib deps ver = self.__evrTupletoVer((reqe, reqv, reqr)) try: resolve_sack = self.yum.whatProvides(req, flags, ver) except yum.Errors.RepoError, e: continue for p in resolve_sack: if p is pkg or p.name == pkg.name: continue nonleaves.add(p.name) return pkgnames - nonleaves, missing def __buildList(self, pkgs=None, ignore_missing=False): if pkgs: self.allpkgs = frozenset(pkgs) elif self.input is None: self.allpkgs = frozenset(pkg.name for pkg in self.yum.rpmdb.returnPackages()) else: pkgs = [] for line in self.input: pkgs.extend(line.split()) pkgs = map(str.strip, pkgs) pkgs = filter(None, pkgs) self.allpkgs = frozenset(pkgs) if self.input is None and not ignore_missing and not pkgs: self.leaves = frozenset((pkg.name for pkg in self.yum.rpmdb.returnLeafNodes())) else: leaves, missing = self.__getLeaves(self.allpkgs) if ignore_missing: self.leaves = leaves - missing self.allpkgs = self.allpkgs - missing else: self.leaves = leaves self.leafcount = len(self.leaves) # check if package exist in repository self.missingpkgs = set() for pkg in self.allpkgs: if self.yum.pkgSack.searchNames([pkg]): continue self.missingpkgs.add(pkg) for group in self.yum.comps.get_groups(): self.__addGroup(group) def autodetectStates(self, allowexcludes=False, allowed=("default",)): """Check with states (None, "mandatory", "default", "all") is the best for each of the groups. @param allowexcludes: use excludes for groups not installable as a whole @param allowed: list of states that are considered """ pkg2group = {} for g in self.groups: g._autodetectState(allowexcludes, allowed) # find out which pkgs are in more than one group for pkg in g.add: pkg2group.setdefault(pkg, set()).add(g) for g in self.groups: # filter out groups which are not worth it because some of # their packages belong to other groups # This is likely a NP complete problem, but this is a very # simple algorithm. Results may be below the optimum. g._autodetectState(allowexcludes, allowed, self.pkg2group) def globalExcludes(self): """return a list of all excludes""" excludes = set() for g in self.groups: excludes.update(g.exclude) return excludes def remainingPkgs(self, all=False): """Return a list of all packages not parts of groups or required by others @param all: return the addons of the groups, too """ remaining = set(self.leaves) for g in self.groups: remaining.difference_update(g.add) if not all: remaining.difference_update(g.addons) return remaining class ListPrinter: """Writes things out. Closely coupled to the optparse object created in the main function. """ def __init__(self, pkgs, options, output=None): self.pkgs = pkgs if output is None: output = sys.stdout self.output = output self.options = options self.__seen = set() def __printPkgs(self, pkgs, prefix='', separator='\n'): pkgs = pkgs - self.__seen self.__seen.update(pkgs) pkgs = list(pkgs) pkgs.sort() for name in pkgs: self.output.write("%s%s%s" % (prefix, name, separator)) return len(pkgs) def writeWarnings(self): e = sys.stderr if self.pkgs.missingpkgs: e.write("WARNING: The following packages are installed but not in the repository:\n") for pkg in self.pkgs.missingpkgs: e.write("\t%s\n" % pkg) e.write("\n") if True: first = True for g in self.pkgs.groups: if not g.excludeMissing: continue if first: e.write("WARNING: The following groups contain packages not found in the repositories:\n") first = False e.write("%s%s\n" % ("XXX ", g.id)) for pkg in g.excludeMissing: e.write("\t%s\n" % pkg) if not first: e.write("\n") def writeList(self): self.__seen.clear() if self.options.format == "human": indent = '\t' separator = '\n' elif self.options.format == "kickstart": indent = '' separator = '\n' elif self.options.format == "yum": indent = '' separator = ' ' else: raise ValueError("Unknown format") remaining = self.pkgs.remainingPkgs(True) lines = 0 groups = 0 for group in self.pkgs.groups: addons = group.addons & remaining if not group.state and not( addons and self.options.addons_by_group and not self.options.global_addons): continue lines += 1 if group.state: groups += 1 self.output.write("%s%s%s" % (state2str(group), group.id, separator)) # exclude lines after the group if not self.options.global_excludes: pkgs = group.exclude if self.options.ignore_missing_excludes: pkgs = pkgs - group.excludeMissing lines += self.__printPkgs(pkgs, indent+'-', separator) # packages after the group if not self.options.global_addons: lines += self.__printPkgs(addons, indent, separator) if self.options.format == "human": lines += 1 self.output.write("# Others\n") # leave filtering out pkgs bmeantioned above to __printPkgs lines += self.__printPkgs(remaining, '', separator) # exclude lines at the end excludes = self.pkgs.globalExcludes() if self.options.global_excludes: lines += self.__printPkgs(excludes, '-', separator) # Stats if self.options.format == "human": lines += 3 self.output.write("# %i package names, %i leaves\n# %i groups, %i leftovers, %i excludes\n# %i lines\n" % (len(self.pkgs.allpkgs), len(self.pkgs.leaves), groups, len(remaining), len(excludes), lines)) # **************************************************************************** def __main__(): parser = OptionParser(description="Gives a compact description of the packages installed (or given) making use of the comps groups found in the repositories.") parser.add_option("-f", "--format", dest="format", choices=('kickstart','human','yum'), default="human", help='yum, kickstart or human; yum gives the result as a yum command line; kickstart the content of a %packages section; "human" readable is default.') parser.add_option("-i", "--input", dest="input", action="store", default=None, help="File to read the package list from instead of using the rpmdb. - for stdin. The file must contain package names only separated by white space (including newlines). rpm -qa --qf='%{name}\\n' produces proper output.") parser.add_option("-o", "--output", dest="output", action="store", default=None, help="File to write the result to. Stdout is used if option is omitted.") parser.add_option("-q", "--quiet", dest="quiet", action="store_true", help="Do not show warnings.") parser.add_option("-e", "--no-excludes", dest="excludes", action="store_false", default=True, help="Only show groups that are installed completely. Do not use exclude lines.") parser.add_option("--global-excludes", dest="global_excludes", action="store_true", help="Print exclude lines at the end and not after the groups requiring them.") parser.add_option("--global-addons", dest="global_addons", action="store_true", help="Print package names at the end and not after the groups offering them as addon.") parser.add_option('--addons-by-group', dest="addons_by_group", action="store_true", help='Also show groups not selected to sort packages contained by them. Those groups are commented out with a "# " at the begin of the line.') parser.add_option("-m", "--allow-mandatories", dest="allowed", action="append_const", const='mandatory', default=['default'], help='Check if just installing the mandatory packages gives better results. Uses "." to mark those groups.') parser.add_option("-a", "--allow-all", dest="allowed", action='append_const', const='all', help='Check if installing all packages in the groups gives better results. Uses "*" to mark those groups.') parser.add_option("--ignore-missing", dest="ignore_missing", action="store_true", help="Ignore packages missing in the repos.") parser.add_option("--ignore-missing-excludes", dest="ignore_missing_excludes", action="store_true", help="Do not produce exclude lines for packages not in the repository.") (options, args) = parser.parse_args() if options.format != "human" and len(options.allowed)>1: print '-m, --allow-mandatories, -a, --allow-all are only allowed in "human" (readable) format as yum and anaconda do not support installing all or only mandatory packages per group. Sorry.' sys.exit(-1) input_ = None if options.input and options.input=="-": input_ = sys.stdin elif options.input: try: input_ = open(options.input) except IOError, e: print e exit -1 else: input_ = None if options.output and options.output!='-': output = open(options.output, "w") else: output = sys.stdout i = InstalledPackages(input=input_, ignore_missing=options.ignore_missing) i.autodetectStates(options.excludes, options.allowed) p = ListPrinter(i, options, output=output) if not options.quiet: p.writeWarnings() p.writeList() if __name__ == "__main__": __main__()
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