def do_object_operation(args):
"""Implement object operations in a way that can be reused by ocfl-store.py."""
obj = ocfl.Object(identifier=args.id,
digest_algorithm=args.digest,
filepath_normalization=args.normalization,
skips=args.skip,
forward_delta=not args.no_forward_delta,
dedupe=not args.no_dedupe,
ocfl_version=args.ocfl_version,
fixity=args.fixity)
if args.create:
if args.srcdir is None:
raise Exception(
"Must specify --srcdir containing v1 files when creating an OCFL object!"
)
metadata = ocfl.VersionMetadata(args)
obj.create(srcdir=args.srcdir, metadata=metadata, objdir=args.objdir)
elif args.build:
if args.srcdir is None:
raise Exception(
"Must specify --srcdir containing version directories when building an OCFL object!"
)
metadata = ocfl.VersionMetadata(args)
obj.build(srcdir=args.srcdir, metadata=metadata, objdir=args.objdir)
elif args.show:
obj.show(path=args.objdir)
elif args.validate:
obj.validate(path=args.objdir)
elif args.extract:
obj.extract(objdir=args.objdir,
version=args.extract,
dstdir=args.dstdir)
else:
raise Exception("Command argument not supported!")
def migrate(pid, storage_root):
obj_root = os.path.join(storage_root, pid)
if os.path.exists(obj_root):
raise MigrationError(f'{obj_root} already exists')
ocfl_obj = ocfl.Object(identifier=pid)
version_metadata = ocfl.version.VersionMetadata()
with tempfile.TemporaryDirectory() as src_dir:
_get_fedora3_datastreams(src_dir, pid)
ocfl_obj.create(srcdir=src_dir, metadata=version_metadata, objdir=obj_root)
def create_sidecar(dir):
"""Create sidecar for inventory in dir."""
inventory_path = os.path.join(dir, INVENTORY_NAME)
if not os.path.isfile(inventory_path):
logging.error("Ignoring path %s because there is not file %s." %
(dir, inventory_path))
else:
object = ocfl.Object()
if args.digest is not None:
object.digest_algorithm = args.digest
else: # Read inventory in the hope of setting digest_algoritm
try:
object.parse_inventory(dir)
except ocfl.ObjectException as e:
logging.warning(
"Failed to read inventory in directory %s (%s)" %
(dir, str(e)))
sidecar = object.write_inventory_sidecar(dir)
logging.info("Written sidecar file %s" % (sidecar))
def create_sidecar(args, directory):
"""Create sidecar for inventory in dir."""
inventory_path = os.path.join(directory, INVENTORY_NAME)
if not os.path.isfile(inventory_path):
logging.error(
"Ignoring path %s because there is no inventory file %s.",
directory, inventory_path)
else:
obj = ocfl.Object(path=directory)
if args.digest is not None:
obj.digest_algorithm = args.digest
else: # Read inventory in the hope of setting digest_algoritm
try:
obj.parse_inventory()
except ocfl.ObjectException as e:
logging.warning(
"Failed to read inventory in directory %s (%s)", directory,
e)
sidecar = obj.write_inventory_sidecar()
logging.info("Written sidecar file %s", sidecar)
def do_object_operation(args):
"""Implement object operations in a way that can be reused by ocfl-store.py."""
obj = ocfl.Object(identifier=args.id,
digest_algorithm=args.digest,
filepath_normalization=args.normalization,
forward_delta=not args.no_forward_delta,
dedupe=not args.no_dedupe,
lax_digests=args.lax_digests,
fixity=args.fixity)
if args.create:
srcdir = args.srcdir
metadata = ocfl.VersionMetadata(args=args)
if args.srcbag is not None:
srcdir = ocfl.bag_as_source(args.srcbag, metadata)
if metadata.id is not None:
if obj.id:
if obj.id != metadata.id:
raise FatalError(
"Identifier specified (%s) and identifier from Bagit bag (%s) do not match!"
% (obj.id, metadata.id))
else:
obj.id = metadata.id
elif args.srcdir is None:
raise FatalError(
"Must specify either --srcdir or --srcbag containing v1 files when creating an OCFL object!"
)
obj.create(srcdir=srcdir, metadata=metadata, objdir=args.objdir)
elif args.build:
if args.srcdir is None:
raise FatalError(
"Must specify --srcdir containing version directories when building an OCFL object!"
)
metadata = ocfl.VersionMetadata(args=args)
obj.build(srcdir=args.srcdir, metadata=metadata, objdir=args.objdir)
elif args.update:
srcdir = args.srcdir
metadata = ocfl.VersionMetadata(args=args)
if args.srcbag is not None:
srcdir = ocfl.bag_as_source(args.srcbag, metadata)
elif args.srcdir is None:
raise FatalError(
"Must specify either --srcdir or --srcbag containing new version files when updating an OCFL object!"
)
obj.update(objdir=args.objdir, srcdir=srcdir, metadata=metadata)
elif args.show:
obj.show(objdir=args.objdir)
elif args.validate:
obj.validate(objdir=args.objdir)
elif args.extract:
if args.dstdir and args.dstbag:
args.dstdir = None # Override dstdir if dstbag specified
version = args.extract
dst = args.dstdir or args.dstbag
metadata = obj.extract(objdir=args.objdir, version=version, dstdir=dst)
if args.dstdir:
print("Extracted content for %s in %s" % (version, dst))
else: # args.dstbag
ocfl.bag_extracted_version(dst, metadata)
print("Extracted content for %s saved as Bagit bag in %s" %
(version, dst))
else:
raise FatalError("Command argument not supported!")
store.initialize()
elif args.list:
store.list()
elif args.validate:
store.validate(show_warnings=not args.quiet)
elif args.add:
if not args.src:
raise ocfl.StoreException("Must specify object path with --src")
store.add(object_path=args.src)
elif args.purge:
logging.error("purge not implemented")
elif args.show_object or args.validate_object:
if not args.id:
raise ocfl.StoreException(
"Must specify id to act on an object in the store")
objdir = store.object_path(args.id)
obj = ocfl.Object(identifier=args.id,
digest_algorithm=args.digest,
forward_delta=not args.no_forward_delta,
dedupe=not args.no_dedupe,
fixity=args.fixity)
if args.show_object:
obj.show(objdir)
else:
logging.error("create/build/validate not implemented")
else:
logging.warning("No command, nothing to do.")
except (ocfl.StoreException, ocfl.ObjectException) as e:
logging.error(str(e))
sys.exit(1)
log = logging.getLogger(name="ocfl-validate")
log.setLevel(level=logging.INFO if args.verbose else logging.WARN)
if len(args.path) == 0:
print("No OCFL paths specified, nothing to do! (Use -h for help)")
num = 0
num_good = 0
num_paths = len(args.path)
show_warnings = not args.quiet and not args.very_quiet
for path in args.path:
num += 1
path_type = ocfl.find_path_type(path)
if path_type == 'object':
log.info("Validating OCFL Object at %s", path)
obj = ocfl.Object(lax_digests=args.lax_digests)
if obj.validate(path,
show_warnings=show_warnings,
show_errors=not args.very_quiet,
check_digests=not args.no_check_digests):
num_good += 1
elif path_type == 'root':
log.info("Validating OCFL Storage Root at %s", path)
store = ocfl.Store(root=path, lax_digests=args.lax_digests)
if store.validate(show_warnings=show_warnings,
show_errors=not args.very_quiet,
check_digests=not args.no_check_digests):
num_good += 1
elif path_type == 'file':
log.info("Validating separate OCFL Inventory at %s", path)
obj = ocfl.Object(lax_digests=args.lax_digests)
#!/usr/bin/env python
"""Validate an OCFL Object."""
import argparse
import ocfl
parser = argparse.ArgumentParser(
description='Validate one or more OCFL objects.')
parser.add_argument('objdir', type=str, nargs=1, help='OCFL object path')
args = parser.parse_args()
ocfl = ocfl.Object()
for objdir in args.objdir:
ocfl.validate(objdir)
store.list()
elif args.validate:
store.validate(show_warnings=not args.quiet)
elif args.add:
if not args.src:
raise ocfl.StoreException("Must specify object path with --src")
store.add(object_path=args.src)
elif args.purge:
logging.error("purge not implemented")
elif args.show_object or args.validate_object:
if not args.id:
raise ocfl.StoreException(
"Must specify id to act on an object in the store")
objdir = store.object_path(args.id)
obj = ocfl.Object(identifier=args.id,
digest_algorithm=args.digest,
forward_delta=not args.no_forward_delta,
dedupe=not args.no_dedupe,
skips=args.skip,
ocfl_version=args.ocfl_version,
fixity=args.fixity)
if args.show_object:
obj.show(objdir)
else:
logging.error("create/build/validate not implemented")
else:
logging.warn("Nuttin' happenin' 'round 'ere.")
except (ocfl.StoreException, ocfl.ObjectException) as e:
logging.error(str(e))
sys.exit(1)