def get_pkg_info(self):
"""Extract the contents of the pkg_info file from the binary package."""
with tarfile.open(self.filename) as tar:
for member in tar:
if member.name != 'pkg_info':
raise error.PkgFormatError('pkg_info not first member in archive')
return tar.extractfile(member).read()
def verify_archive_format(self):
if not os.path.exists(self.filename):
raise error.Error('package archive not found: %s' % self.filename)
basename, extension = os.path.splitext(os.path.basename(self.filename))
basename = os.path.splitext(basename)[0]
if extension != '.bz2':
raise error.Error('invalid file extension: %s' % extension)
try:
with tarfile.open(self.filename):
pass
except tarfile.TarError as e:
raise error.PkgFormatError(e)
def _install_files(self, force):
dest = util.get_install_root(self.config)
dest_tmp = os.path.join(dest, 'install_tmp')
if os.path.exists(dest_tmp):
shutil.rmtree(dest_tmp)
if self.is_any_version_installed():
raise error.Error('package already installed: %s' %
self.info_string())
self.log_status('Installing')
util.log_verbose('installing from: %s' % self.filename)
util.makedirs(dest_tmp)
names = []
try:
with tarfile.open(self.filename) as tar:
for info in tar:
if info.isdir():
continue
name = posixpath.normpath(info.name)
if name == 'pkg_info':
continue
if not name.startswith(PAYLOAD_DIR + '/'):
raise error.PkgFormatError(
'invalid file in package: %s' % name)
name = name[len(PAYLOAD_DIR) + 1:]
names.append(name)
if not force:
for name in names:
full_name = os.path.join(dest, name)
if os.path.exists(full_name):
raise error.Error('file already exists: %s' %
full_name)
tar.extractall(dest_tmp)
payload_tree = os.path.join(dest_tmp, PAYLOAD_DIR)
names = filter_out_executables(names, payload_tree)
for name in names:
install_file(name, payload_tree, dest)
finally:
shutil.rmtree(dest_tmp)
for name in names:
relocate_file(name, dest)
self.write_file_list(names)
def _InstallFiles(self, force):
dest = util.GetInstallRoot(self.config)
dest_tmp = os.path.join(dest, 'install_tmp')
if os.path.exists(dest_tmp):
shutil.rmtree(dest_tmp)
if self.IsAnyVersionInstalled():
raise error.Error('package already installed: %s' % self.InfoString())
self.LogStatus('Installing')
util.LogVerbose('installing from: %s' % self.filename)
util.Makedirs(dest_tmp)
names = []
try:
with tarfile.open(self.filename) as tar:
for info in tar:
if info.isdir():
continue
name = posixpath.normpath(info.name)
if name == 'pkg_info':
continue
if not name.startswith(PAYLOAD_DIR + '/'):
raise error.PkgFormatError('invalid file in package: %s' % name)
name = name[len(PAYLOAD_DIR) + 1:]
names.append(name)
if not force:
for name in names:
full_name = os.path.join(dest, name)
if os.path.exists(full_name):
raise error.Error('file already exists: %s' % full_name)
tar.extractall(dest_tmp)
payload_tree = os.path.join(dest_tmp, PAYLOAD_DIR)
names = FilterOutExecutables(names, payload_tree)
for name in names:
InstallFile(name, payload_tree, dest)
finally:
shutil.rmtree(dest_tmp)
for name in names:
RelocateFile(name, dest)
self.WriteFileList(names)