def __init__(self, frontend):
'''
@param frontend:
'''
transaction = YumexTransactionYum(self, frontend)
YumexBackendBase.__init__(self, frontend, transaction)
YumClient.__init__(self, frontend)
self.dont_abort = False
self.package_cache = PackageCache(self, frontend)
self._running_as_root = True
self.lock_is_progress_active = False
def search_prefix(self, prefix, show_newest_only, package_type, use_cache=True):
'''
Search for packages with prefix
@param prefix prefix to search for
'''
pkgs = YumClient.search_prefix(self, prefix, show_newest_only, package_type)
return self.package_cache.find_packages(pkgs)
def get_repositories(self):
'''
get repositories
@return: a list of repositories
'''
repos = YumClient.get_repos(self)
return repos
def setup(self, offline=False, repos=None, need_root=True):
''' Setup the backend'''
if self.yum_backend_is_running: # Check if backend is already running
if self._running_as_root == need_root or self._running_as_root:
return
self.debug('Restarting backend as root')
self.reset() # stop the running backend
self._close() # stop the running launcher process
self._running_as_root = need_root or os.getuid()==0
self.frontend.info(_("Starting yum child process"))
if repos:
self.frontend.info(_("Using the following repositories :\n%s\n\n") % (','.join(repos)))
plugins = self.frontend.settings.plugins
yumdebuglevel = self.frontend.settings.yumdebuglevel
proxy = self.frontend.settings.proxy.strip()
yum_conf = self.frontend.settings.yum_conf
filelog = False
if 'show_backend' in self.frontend.debug_options:
filelog = True
self.debug('Initialize yum backend - BEGIN')
rc = YumClient.setup(self, debuglevel=yumdebuglevel, plugins=plugins,
filelog=filelog, offline=offline, repos=repos, proxy=proxy,
yum_conf=yum_conf, need_root=need_root)
self.debug('Initialize yum backend - END')
return rc
def run_command(self, cmd, userlist, use_cache=True):
'''
Search for packages with prefix
@param prefix prefix to search for
'''
pkgs = YumClient.run_command(self, cmd, userlist)
self.frontend.get_progress().hide()
return self.package_cache.find_packages(pkgs)
def get_groups(self):
'''
get groups
@return: a list of groups
'''
self.frontend.debug('Getting Group information')
grps = YumClient.get_groups(self)
return grps
def get_packages_repo(self, repoid):
'''
get packages based on repoid
@param repoid: the repo id
@return: a list of packages
'''
pkgs = YumClient.get_packages_repo(self, repoid)
return self.package_cache.find_packages(pkgs)
def get_packages_size(self, ndx):
'''
get packages based on size ranges
@param ndx: size range index
@return: a list of packages
'''
pkgs = YumClient.get_packages_size(self, ndx)
return self.package_cache.find_packages(pkgs)
def search(self, keys, sch_filters, show_newest_only, package_type, use_cache=True ):
'''
get packages matching keys
@param keys: list of keys to search for
@param sch_filters: list of search filter (Enum SEARCH)
'''
self.frontend.debug('Seaching for %s in %s (%s)' % (keys, sch_filters, package_type))
pkgs = YumClient.search(self, keys, sch_filters, show_newest_only, package_type)
return self.package_cache.find_packages(pkgs)
def get_group_packages(self, group, grp_filter=None):
'''
get packages in a group
@param group: group id to get packages from
@param grp_filter: group filters (Enum GROUP)
'''
self.frontend.debug('Getting packages in group : %s (FILTER = %s)' % (group, grp_filter))
pkgs = YumClient.get_group_packages(self, group, grp_filter)
return self.package_cache.find_packages(pkgs)
def enable_repository(self, repoid, enabled=True):
'''
set repository enable state
@param repoid: repo id to change
@param enabled: repo enable state
'''
self.frontend.debug('Setting repository %s (Enabled = %s)' % (repoid, enabled))
repo = YumClient.enable_repo(self, repoid, enabled)
return repo
def get_dependencies(self, po):
reqs = YumClient.get_dependencies(self, po)
rc = {}
for req_tup, po in reqs:
req = prco_tuple_to_string(req_tup)
cpo = self.package_cache._add(po)
if req in rc:
rc[req].append(cpo)
else:
rc[req] = [cpo]
return rc
def get_packages(self, pkg_filter, show_dupes=False, disable_cache=False):
'''
get packages based on filter
@param pkg_filer: package list filter
@return: a list of packages
'''
if str(pkg_filter) == 'all':
filters = ['installed', 'available']
else:
filters = [pkg_filter]
rc = []
# Getting the packages
for flt in filters:
if not self.package_cache.is_populated(pkg_filter) or disable_cache:
pkgs = YumClient.get_packages(self, flt, show_dupes,
disable_cache)
self.debug('got %i packages from yum backend' % (len(pkgs)))
self.package_cache.populate(flt, pkgs)
else:
pkgs = self.package_cache._get_packages(pkg_filter)
self.debug('got %i packages from cache' % (len(pkgs)))
rc.extend(pkgs)
self.info(_("%i packages returned") % len(rc))
return rc
def get_available_downgrades(self, po):
pkgs = YumClient.get_available_downgrades(self, po)
return self.package_cache.find_packages(pkgs)
def get_available_by_name(self, name):
pkgs = YumClient.get_available_by_name(self, name)
return self.package_cache.find_packages(pkgs)
def reset(self):
''' Reset the backend, so it can be setup again'''
self.package_cache.reset()
rc = YumClient.reset(self)
if rc:
self.frontend.info(_("yum backend process is ended"))
