pungi/pypungi/gather.py
jkeating@localhost.localdomain 1f85a11293 Create a PungiBase class
Make Gather and Pungi subclasses of this base class
Adjust logging to use the facility in PungiBase
Adjust logging levels to be appropriate
Drop a note when the compose is finished.
2007-08-15 19:19:13 -04:00

398 lines
15 KiB
Python
Executable File

#!/usr/bin/python -tt
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Library General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
import yum
import os
import shutil
import sys
import pypungi
import logging
class PungiYum(yum.YumBase):
"""Subclass of Yum"""
def __init__(self, config):
self.pungiconfig = config
yum.YumBase.__init__(self)
def doLoggingSetup(self, debuglevel, errorlevel):
"""Setup the logging facility."""
logdir = os.path.join(self.pungiconfig.get('default', 'destdir'), 'logs')
if not os.path.exists(logdir):
os.makedirs(logdir)
if self.pungiconfig.get('default', 'flavor'):
logfile = os.path.join(logdir, '%s.%s.log' % (self.pungiconfig.get('default', 'flavor'),
self.pungiconfig.get('default', 'arch')))
else:
logfile = os.path.join(logdir, '%s.log' % (self.pungiconfig.get('default', 'arch')))
yum.logging.basicConfig(level=yum.logging.DEBUG, filename=logfile)
def doFileLogSetup(self, uid, logfile):
# This function overrides a yum function, allowing pungi to control
# the logging.
pass
class Gather(pypungi.PungiBase):
def __init__(self, config, pkglist):
pypungi.PungiBase.__init__(self, config)
# Set our own logging name space
self.logger = logging.getLogger('Pungi.Gather')
self.pkglist = pkglist
self.config.cachedir = os.path.join(self.workdir, 'yumcache')
self.polist = []
self.srpmlist = []
self.resolved_deps = {} # list the deps we've already resolved, short circuit.
# Create a comps object and add our comps file for group definitions
self.compsobj = yum.comps.Comps()
self.compsobj.add(self.config.get('default', 'comps'))
# Create a yum object to use
self.ayum = PungiYum(config)
self.ayum.doConfigSetup(fn=config.get('default', 'yumconf'), debuglevel=6, errorlevel=6, root=os.path.join(self.workdir, 'yumroot'))
self.ayum.cleanMetadata() # clean metadata that might be in the cache from previous runs
self.ayum.cleanSqlite() # clean metadata that might be in the cache from previous runs
self.ayum.doRepoSetup()
self.ayum.doTsSetup()
self.ayum.doRpmDBSetup()
if config.get('default', 'arch') == 'i386':
arches = yum.rpmUtils.arch.getArchList('i686')
self.ayum.compatarch = 'i686'
elif config.get('default', 'arch') == 'ppc':
arches = yum.rpmUtils.arch.getArchList('ppc64')
self.ayum.compatarch = 'ppc64'
elif config.get('default', 'arch') == 'sparc':
arches = yum.rpmUtils.arch.getArchList('sparc64v')
self.ayum.compatarch = 'sparc64v'
else:
arches = yum.rpmUtils.arch.getArchList(config.get('default', 'arch'))
self.ayum.compatarch = config.get('default', 'arch')
#self.doSackSetup(arches)
#self.doSackSetup(archlist=arches) # work around temp break in yum api
#self.doSackFilelistPopulate()
self.ayum._getSacks(archlist=arches)
def verifyCachePkg(self, po, path): # Stolen from yum
"""check the package checksum vs the cache
return True if pkg is good, False if not"""
(csum_type, csum) = po.returnIdSum()
try:
filesum = yum.misc.checksum(csum_type, path)
except yum.Errors.MiscError:
return False
if filesum != csum:
return False
return True
def getPackageDeps(self, po):
"""Add the dependencies for a given package to the
transaction info"""
self.logger.info('Checking deps of %s.%s' % (po.name, po.arch))
reqs = po.requires
provs = po.provides
for req in reqs:
if self.resolved_deps.has_key(req):
continue
(r,f,v) = req
if r.startswith('rpmlib(') or r.startswith('config('):
continue
if req in provs:
continue
deps = self.ayum.whatProvides(r, f, v).returnPackages()
if not deps:
self.logger.warn("Unresolvable dependency %s in %s.%s" % (r, po.name, po.arch))
continue
depsack = yum.packageSack.ListPackageSack(deps)
for dep in depsack.returnNewestByNameArch():
self.ayum.tsInfo.addInstall(dep)
self.logger.info('Added %s.%s for %s.%s' % (dep.name, dep.arch, po.name, po.arch))
self.resolved_deps[req] = None
def getPackagesFromGroup(self, group):
"""Get a list of package names from a comps object
Returns a list of package names"""
packages = []
optional = None
nodefaults = None
# Check for an option regarding default/optional packages
last = group.split()[-1]
if last == '--optional':
optional = True
group = group.split(' --optional')[0]
if last == '--nodefaults':
nodefaults = True
group = group.split(' --nodefaults')[0]
# Check if we have the group
if not self.compsobj.has_group(group):
self.logger.error("Group %s not found in comps!" % group)
return packages
# Get the group object to work with
groupobj = self.compsobj.return_group(group)
# Add the mandatory packages
packages.extend(groupobj.mandatory_packages.keys())
# Add the default packages unless we don't want them
if not nodefaults:
packages.extend(groupobj.default_packages.keys())
# Add the optional packages if we want them
if optional:
packages.extend(groupobj.optional_packages.keys())
# Deal with conditional packages
# Populate a dict with the name of the required package and value
# of the package objects it would bring in. To be used later if
# we match the conditional.
for condreq, cond in groupobj.conditional_packages.iteritems():
pkgs = self.ayum.pkgSack.searchNevra(name=condreq)
if pkgs:
pkgs = self.ayum.bestPackagesFromList(pkgs)
if self.ayum.tsInfo.conditionals.has_key(cond):
self.ayum.tsInfo.conditionals[cond].extend(pkgs)
else:
self.ayum.tsInfo.conditionals[cond] = pkgs
return packages
def getPackageObjects(self):
"""Cycle through the list of packages, get package object
matches, and resolve deps.
Returns a list of package objects"""
final_pkgobjs = {} # The final list of package objects
searchlist = [] # The list of package names/globs to search for
matchdict = {} # A dict of objects to names
grouplist = []
excludelist = []
addlist = []
# Cycle through the package list and pull out the groups
for line in self.pkglist:
line = line.strip()
if line.startswith('#'):
self.logger.debug('Skipping comment: %s' % line)
continue
if line.startswith('@'):
self.logger.info('Adding group: %s' % line)
grouplist.append(line.strip('@'))
continue
if line.startswith('-'):
self.logger.info('Adding exclude: %s' % line)
excludelist.append(line.strip('-'))
continue
else:
self.logger.info('Adding package: %s' % line)
addlist.append(line)
# First remove the excludes
self.ayum.conf.exclude.extend(excludelist)
self.ayum.excludePackages()
# Get a list of packages from groups
for group in grouplist:
searchlist.extend(self.getPackagesFromGroup(group))
# Add the adds
searchlist.extend(addlist)
# Make the search list unique
searchlist = yum.misc.unique(searchlist)
# Search repos for things in our searchlist, supports globs
(exactmatched, matched, unmatched) = yum.packages.parsePackages(self.ayum.pkgSack.returnPackages(), searchlist, casematch=1)
matches = exactmatched + matched
# Populate a dict of package objects to their names
for match in matches:
matchdict[match.name] = match
# Get the newest results from the search
mysack = yum.packageSack.ListPackageSack(matches)
for match in mysack.returnNewestByNameArch():
self.ayum.tsInfo.addInstall(match)
self.logger.debug('Found %s.%s' % (match.name, match.arch))
for pkg in unmatched:
if not pkg in matchdict.keys():
self.logger.warn('Could not find a match for %s' % pkg)
if len(self.ayum.tsInfo) == 0:
raise yum.Errors.MiscError, 'No packages found to download.'
moretoprocess = True
while moretoprocess: # Our fun loop
moretoprocess = False
for txmbr in self.ayum.tsInfo:
if not final_pkgobjs.has_key(txmbr.po):
final_pkgobjs[txmbr.po] = None # Add the pkg to our final list
self.getPackageDeps(txmbr.po) # Get the deps of our package
moretoprocess = True
self.polist = final_pkgobjs.keys()
def getSRPMList(self):
"""Cycle through the list of package objects and
find the sourcerpm for them. Requires yum still
configured and a list of package objects"""
for po in self.polist:
srpm = po.sourcerpm.split('.src.rpm')[0]
if not srpm in self.srpmlist:
self.srpmlist.append(srpm)
def downloadPackages(self):
"""Cycle through the list of package objects and
download them from their respective repos."""
downloads = []
for pkg in self.polist:
downloads.append('%s.%s' % (pkg.name, pkg.arch))
downloads.sort()
self.logger.info("Download list: %s" % downloads)
# Package location within destdir, name subject to change/config
pkgdir = os.path.join(self.config.get('default', 'destdir'), self.config.get('default', 'version'),
self.config.get('default', 'flavor'),
self.config.get('default', 'arch'),
self.config.get('default', 'osdir'),
self.config.get('default', 'product_path'))
if not os.path.exists(pkgdir):
os.makedirs(pkgdir)
for pkg in self.polist:
repo = self.ayum.repos.getRepo(pkg.repoid)
remote = pkg.relativepath
local = os.path.basename(remote)
local = os.path.join(self.config.get('default', 'cachedir'), local)
if os.path.exists(local) and self.verifyCachePkg(pkg, local):
self.logger.debug("%s already exists and appears to be complete" % local)
target = os.path.join(pkgdir, os.path.basename(remote))
if os.path.exists(target):
os.remove(target) # avoid traceback after interrupted download
os.link(local, target)
continue
# Disable cache otherwise things won't download
repo.cache = 0
self.logger.info('Downloading %s' % os.path.basename(remote))
pkg.localpath = local # Hack: to set the localpath to what we want.
# do a little dance for file:// repos...
path = repo.getPackage(pkg)
if not os.path.exists(local) or not os.path.samefile(path, local):
shutil.copy2(path, local)
os.link(local, os.path.join(pkgdir, os.path.basename(remote)))
def downloadSRPMs(self):
"""Cycle through the list of srpms and
find the package objects for them, Then download them."""
srpmpolist = []
## Work around for yum bug
#for sack in self.pkgSack.sacks.values():
# sack.added = {}
# sack.excludes = {}
#self.pkgSack.excludes = {}
## We need to reset the yum object
#self.pkgSack = None
## Setup the sack with just src arch
#self.doSackSetup(archlist=['src'])
# Make a new yum object
syum = yum.YumBase()
syum.doConfigSetup(fn=self.config.get('default', 'yumconf'), debuglevel=6, errorlevel=6, root=os.path.join(self.workdir, 'yumroot'))
syum.doRepoSetup()
syum._getSacks(archlist=['src'])
for srpm in self.srpmlist:
(sname, sver, srel) = srpm.rsplit('-', 2)
try:
srpmpo = syum.pkgSack.searchNevra(name=sname, ver=sver, rel=srel)[0]
if not srpmpo in srpmpolist:
srpmpolist.append(srpmpo)
except IndexError:
print >> sys.stderr, "Error: Cannot find a source rpm for %s" % srpm
sys.exit(1)
# do the downloads
pkgdir = os.path.join(self.config.get('default', 'destdir'), self.config.get('default', 'version'),
self.config.get('default', 'flavor'), 'source', 'SRPMS')
if not os.path.exists(pkgdir):
os.makedirs(pkgdir)
for pkg in srpmpolist:
repo = syum.repos.getRepo(pkg.repoid)
remote = pkg.relativepath
local = os.path.basename(remote)
local = os.path.join(self.config.get('default', 'cachedir'), local)
if os.path.exists(local) and self.verifyCachePkg(pkg, local):
self.logger.debug("%s already exists and appears to be complete" % local)
if os.path.exists(os.path.join(pkgdir, os.path.basename(remote))) and self.verifyCachePkg(pkg, os.path.join(pkgdir, os.path.basename(remote))):
self.logger.debug("%s already exists in tree and appears to be complete" % local)
else:
os.link(local, os.path.join(pkgdir, os.path.basename(remote)))
continue
# Disable cache otherwise things won't download
repo.cache = 0
self.logger.info('Downloading %s' % os.path.basename(remote))
pkg.localpath = local # Hack: to set the localpath to what we want.
# do a little dance for file:// repos...
path = repo.getPackage(pkg)
if not os.path.exists(local) or not os.path.samefile(path, local):
shutil.copy2(path, local)
os.link(local, os.path.join(pkgdir, os.path.basename(remote)))