def restore(self, basedir):
'''restore the packages from the snapfile'''
# if package record file isn't found, simply return
if not os.path.isfile(basedir + "/packages.xml"):
return
if snap.config.options.log_level_at_least('verbose'):
snap.callback.snapcallback.message(
"Restoring packages using apt backend")
# set DEBIAN_FRONTEND to noninteractive so that we won't launch
# any interactive configurations
os.environ['DEBIAN_FRONTEND'] = 'noninteractive'
# first update the system
self.cache.upgrade()
# read files from the record file
record = PackagesRecordFile(basedir + "/packages.xml")
packages = record.read()
# mark necessary packages for installation
for pkg in packages:
decoded_pkgname = PackageRegistry.decode('apt', pkg.name)
if snap.config.options.log_level_at_least('verbose'):
snap.callback.snapcallback.message("Restoring package " +
decoded_pkgname)
pkg = self.cache[decoded_pkgname]
if not pkg.is_installed:
pkg.mark_install()
# finally perform install
self.cache.commit()
def restore(self, basedir):
'''restore the packages from the snapfile'''
# if package record file isn't found, simply return
if not os.path.isfile(basedir + "/packages.xml"):
return
if snap.config.options.log_level_at_least('verbose'):
snap.callback.snapcallback.message("Restoring packages using apt backend");
# set DEBIAN_FRONTEND to noninteractive so that we won't launch
# any interactive configurations
os.environ['DEBIAN_FRONTEND'] = 'noninteractive'
# first update the system
self.cache.upgrade()
# read files from the record file
record = PackagesRecordFile(basedir + "/packages.xml")
packages = record.read()
# mark necessary packages for installation
for pkg in packages:
decoded_pkgname = PackageRegistry.decode('apt', pkg.name)
if snap.config.options.log_level_at_least('verbose'):
snap.callback.snapcallback.message("Restoring package " + decoded_pkgname);
pkg = self.cache[decoded_pkgname]
if not pkg.is_installed:
pkg.mark_install()
# finally perform install
self.cache.commit()
def restore(self, basedir):
'''restore the packages from the snapfile'''
# if package record file isn't found, simply return
if not os.path.isfile(basedir + "/packages.xml"):
return
if snap.config.options.log_level_at_least('verbose'):
snap.callback.snapcallback.message("Restoring packages using yum backend");
# set installroot to fs_root
self.yum.conf.installroot = self.fs_root
# need this to get around gpgcheck in this case (setting gpgcheck to false will not work)
self.yum.conf.assumeyes = True
self.yum.conf.skip_broken = True
# first update the system
for pkg in self.yum.rpmdb:
self.yum.update(pkg)
# read files from the record file
record = PackagesRecordFile(basedir + "/packages.xml")
packages = record.read()
# grab list of packages
pl = self.yum.doPackageLists('all')
# find the ones available to install
for pkg in packages:
decoded_pkgname = PackageRegistry.decode('yum', pkg.name)
# ignore packages already installed (these are already marked to be updated)
if not self.yum.rpmdb.installed(decoded_pkgname):
exactmatch, matched, unmatched = yum.packages.parsePackages(pl.available, [decoded_pkgname])
# install packages with best matching architectures
archs = {}
for match in exactmatch:
archs[match.arch] = match
arch = self.yum.arch.get_best_arch_from_list(archs.keys())
if arch:
pkg = archs[arch]
if pkg:
if snap.config.options.log_level_at_least('verbose'):
snap.callback.snapcallback.message("Restoring package " + decoded_pkgname);
self.yum.install(pkg)
# build / run the transaction
self.yum.buildTransaction()
self.yum.processTransaction()
def testBackupPackages(self):
backup_target = snap.backends.packages.syum.Syum()
backup_target.backup(self.fs_root)
pkgs = []
record = PackagesRecordFile(self.fs_root + "/packages.xml")
record_packages = record.read()
for pkg in record_packages:
pkgs.append(pkg.name)
# ensure all the system's packages have been encoded and recorded
for pkg in yum.YumBase().rpmdb:
encoded = PackageRegistry.encode('yum', pkg.name)
self.assertIn(encoded, pkgs)
def testBackupPackages(self):
backup_target = snap.backends.packages.sapt.Sapt()
backup_target.backup(self.fs_root)
pkgs = []
record = PackagesRecordFile(self.fs_root + "/packages.xml")
record_packages = record.read()
for pkg in record_packages:
pkgs.append(pkg.name)
# ensure all the system's packages have been recorded
for pkg in apt.Cache():
if pkg.is_installed:
encoded = PackageRegistry.encode('apt', pkg.name)
self.assertIn(encoded, pkgs)
def testBackupPackages(self):
backup_target = snap.backends.packages.sapt.Sapt()
backup_target.backup(self.fs_root)
pkgs = []
record = PackagesRecordFile(self.fs_root + "/packages.xml")
record_packages = record.read()
for pkg in record_packages:
pkgs.append(pkg.name)
# ensure all the system's packages have been recorded
for pkg in apt.Cache():
if pkg.is_installed:
encoded = PackageRegistry.encode('apt', pkg.name)
self.assertIn(encoded, pkgs)
def testRestorePackages(self):
restore_target = snap.backends.packages.sapt.Sapt()
restore_target.backup(self.fs_root)
restore_target.fs_root = self.fs_root
restore_target.restore(self.fs_root)
record = PackagesRecordFile(self.fs_root + "/packages.xml")
record_packages = record.read()
record_package_names = []
for pkg in record_packages:
record_package_names.append(pkg.name)
cache = apt.Cache()
cache.open(None)
for pkg in cache:
if pkg.is_installed:
encoded = PackageRegistry.encode('apt', pkg.name)
self.assertIn(encoded, record_package_names)
def backup(self, basedir, include=[], exclude=[]):
'''backup the packages installed locally'''
if snap.config.options.log_level_at_least('verbose'):
snap.callback.snapcallback.message("Backing up packages using yum backend");
# retrieve installed packages
packages=[]
packagenames = set()
for pkg in self.yum.rpmdb:
if not pkg.name in packagenames:
if snap.config.options.log_level_at_least('verbose'):
snap.callback.snapcallback.message("Backing up package " + pkg.name);
packagenames.add(pkg.name)
encoded_pkgname = PackageRegistry.encode('yum', pkg.name)
packages.append(Package(encoded_pkgname, pkg.version))
# write record file to basedir
record = PackagesRecordFile(basedir + "/packages.xml")
record.write(packages)
def testRestorePackages(self):
restore_target = snap.backends.packages.sapt.Sapt()
restore_target.backup(self.fs_root)
restore_target.fs_root = self.fs_root
restore_target.restore(self.fs_root)
record = PackagesRecordFile(self.fs_root + "/packages.xml")
record_packages = record.read()
record_package_names = []
for pkg in record_packages:
record_package_names.append(pkg.name)
cache = apt.Cache()
cache.open(None)
for pkg in cache:
if pkg.is_installed:
encoded = PackageRegistry.encode('apt', pkg.name)
self.assertIn(encoded, record_package_names)
def testRestorePackages(self):
restore_target = snap.backends.packages.syum.Syum()
restore_target.backup(self.fs_root)
restore_target.fs_root = self.fs_root
restore_target.restore(self.fs_root)
record = PackagesRecordFile(self.fs_root + "/packages.xml")
record_packages = record.read()
record_package_names = []
for pkg in record_packages:
record_package_names.append(pkg.name)
installed_package_names = []
lyum = yum.YumBase()
lyum.rpmdb.dbpath = self.fs_root + '/var/lib/rpm'
for pkg in lyum.rpmdb:
installed_package_names.append(pkg.name)
for pkg in record_package_names:
decoded = PackageRegistry.decode('yum', pkg)
self.assertIn(decoded, installed_package_names)
