def dependencies(
name: str,
*,
version: str = None,
cache_root: str = None,
) -> Dependencies:
r"""Database dependencies.
Args:
name: name of database
version: version string
cache_root: cache folder where databases are stored.
If not set :meth:`audb.default_cache_root` is used
Returns:
dependency object
"""
if version is None:
version = latest_version(name)
cache_roots = [
default_cache_root(True), # check shared cache first
default_cache_root(False),
] if cache_root is None else [cache_root]
for cache_root in cache_roots:
deps_root = audeer.safe_path(os.path.join(
cache_root,
name,
version,
))
if os.path.exists(deps_root):
break
audeer.mkdir(deps_root)
deps_path = os.path.join(deps_root, define.CACHED_DEPENDENCIES_FILE)
deps = Dependencies()
if not os.path.exists(deps_path):
backend = lookup_backend(name, version)
with tempfile.TemporaryDirectory() as tmp_root:
archive = backend.join(name, define.DB)
backend.get_archive(
archive,
tmp_root,
version,
)
deps.load(os.path.join(tmp_root, define.DEPENDENCIES_FILE))
deps.save(deps_path)
else:
deps.load(deps_path)
return deps
def publish(
db_root: str,
version: str,
repository: Repository,
*,
archives: typing.Mapping[str, str] = None,
previous_version: typing.Optional[str] = 'latest',
cache_root: str = None,
num_workers: typing.Optional[int] = 1,
verbose: bool = True,
) -> Dependencies:
r"""Publish database.
A database can have dependencies
to files of an older version of itself.
E.g. you might add a few new files to an existing database
and publish as a new version.
:func:`audb.publish` will upload then only the new files
and store dependencies on the already published files.
To allow for dependencies
you first have to load the version of the database
that the new version should depend on
with :func:`audb.load_to` to ``db_root``.
Afterwards you make your changes to that folder
and run :func:`audb.publish`.
:func:`audb.publish` will then check
that the version of the files inside that folder
match the version given by ``previous_version``.
Setting ``previous_version=None`` allows you
to start from scratch and upload all files
even if an older versions exist.
In this case you don't call :func:`audb.load_to`
before running :func:`audb.publish`.
Args:
db_root: root directory of database
version: version string
repository: name of repository
archives: dictionary mapping files to archive names.
Can be used to bundle files into archives.
Archive name must not include an extension
previous_version: specifies the version
this publication should be based on.
If ``'latest'``
it will use automatically the latest published version
or ``None``
if no version was published.
If ``None`` it assumes you start from scratch.
cache_root: cache folder where databases are stored.
If not set :meth:`audb.default_cache_root` is used.
Only used to read the dependencies of the previous version
num_workers: number of parallel jobs or 1 for sequential
processing. If ``None`` will be set to the number of
processors on the machine multiplied by 5
verbose: show debug messages
Returns:
dependency object
Raises:
RuntimeError: if version already exists
RuntimeError: if database tables reference non-existing files
RuntimeError: if database in ``db_root`` depends on other version
as indicated by ``previous_version``
RuntimeError: if database is not portable,
see :meth:`audformat.Database.is_portable`
"""
db = audformat.Database.load(db_root, load_data=False)
backend = audbackend.create(
repository.backend,
repository.host,
repository.name,
)
remote_header = backend.join(db.name, define.HEADER_FILE)
versions = backend.versions(remote_header)
if version in versions:
raise RuntimeError('A version '
f"'{version}' "
'already exists for database '
f"'{db.name}'.")
if previous_version == 'latest':
if len(versions) > 0:
previous_version = versions[-1]
else:
previous_version = None
# load database and dependencies
deps_path = os.path.join(db_root, define.DEPENDENCIES_FILE)
deps = Dependencies()
if os.path.exists(deps_path):
deps.load(deps_path)
# check if database folder depends on the right version
# dependencies shouldn't be there
if previous_version is None and len(deps) > 0:
raise RuntimeError(
f"You did not set a dependency to a previous version, "
f"but you have a '{define.DEPENDENCIES_FILE}' file present "
f"in {db_root}.")
# dependencies missing
if previous_version is not None and len(deps) == 0:
raise RuntimeError(
f"You want to depend on '{previous_version}' "
f"of {db.name}, "
f"but you don't have a '{define.DEPENDENCIES_FILE}' file present "
f"in {db_root}. "
f"Did you forgot to call "
f"'audb.load_to({db_root}, {db.name}, "
f"version={previous_version}?")
# dependencies do not match version
if previous_version is not None and len(deps) > 0:
with tempfile.TemporaryDirectory() as tmp_dir:
previous_deps_path = os.path.join(
tmp_dir,
define.DEPENDENCIES_FILE,
)
previous_deps = dependencies(
db.name,
version=previous_version,
cache_root=cache_root,
)
previous_deps.save(previous_deps_path)
if audbackend.md5(deps_path) != audbackend.md5(previous_deps_path):
raise RuntimeError(
f"You want to depend on '{previous_version}' "
f"of {db.name}, "
f"but the MD5 sum of your "
f"'{define.DEPENDENCIES_FILE}' file "
f"in {db_root} "
f"does not match the MD5 sum of the corresponding file "
f"for the requested version in the repository. "
f"Did you forgot to call "
f"'audb.load_to({db_root}, {db.name}, "
f"version='{previous_version}') "
f"or modified the file manually?")
# load database from folder
db = audformat.Database.load(db_root)
if not db.is_portable:
raise RuntimeError("Some files in the tables have absolute paths "
"or use '.' or '..' to address a folder. "
"Please replace those paths by relative paths "
"and use folder names instead of dots.")
# check all files referenced in a table exists
missing_files = [
f for f in db.files if not os.path.exists(os.path.join(db_root, f))
]
if len(missing_files) > 0:
number_of_presented_files = 20
error_msg = (
f'{len(missing_files)} files are referenced in tables '
'that cannot be found. '
f"Missing files are: '{missing_files[:number_of_presented_files]}")
if len(missing_files) <= number_of_presented_files:
error_msg += "'."
else:
error_msg += ", ...'."
raise RuntimeError(error_msg)
# make sure all tables are stored in CSV format
for table_id, table in db.tables.items():
table_path = os.path.join(db_root, f'db.{table_id}')
table_ext = audformat.define.TableStorageFormat.CSV
if not os.path.exists(table_path + f'.{table_ext}'):
table.save(table_path, storage_format=table_ext)
# check archives
archives = archives or {}
# publish tables
tables = _find_tables(db, db_root, version, deps, verbose)
_put_tables(tables, db_root, db.name, version, backend, num_workers,
verbose)
# publish media
media = _find_media(db, db_root, version, deps, archives, verbose)
_put_media(media, db_root, db.name, version, deps, backend, num_workers,
verbose)
# publish dependencies and header
deps.save(deps_path)
archive_file = backend.join(db.name, define.DB)
backend.put_archive(
db_root,
define.DEPENDENCIES_FILE,
archive_file,
version,
)
try:
local_header = os.path.join(db_root, define.HEADER_FILE)
remote_header = db.name + '/' + define.HEADER_FILE
backend.put_file(local_header, remote_header, version)
except Exception: # pragma: no cover
# after the header is published
# the new version becomes visible,
# so if something goes wrong here
# we better clean up
if backend.exists(remote_header, version):
backend.remove_file(remote_header, version)
return deps
def remove_media(
name: str,
files: typing.Union[str, typing.Sequence[str]],
*,
verbose: bool = False,
):
r"""Remove media from all versions.
Args:
name: name of database
files: list of files that should be removed
verbose: show debug messages
"""
if isinstance(files, str):
files = [files]
for version in versions(name):
backend = lookup_backend(name, version)
with tempfile.TemporaryDirectory() as db_root:
# download dependencies
archive = backend.join(name, define.DB)
deps_path = backend.get_archive(
archive,
db_root,
version,
)[0]
deps_path = os.path.join(db_root, deps_path)
deps = Dependencies()
deps.load(deps_path)
upload = False
for file in files:
if file in deps.media:
archive = deps.archive(file)
# if archive exists in this version,
# remove file from it and re-publish
remote_archive = backend.join(
name,
define.DEPEND_TYPE_NAMES[define.DependType.MEDIA],
archive,
)
if backend.exists(
f'{remote_archive}.zip',
version,
):
files_in_archive = backend.get_archive(
remote_archive,
db_root,
version,
)
# skip if file was already deleted
if file in files_in_archive:
os.remove(os.path.join(db_root, file))
files_in_archive.remove(file)
backend.put_archive(
db_root,
files_in_archive,
remote_archive,
version,
)
# mark file as removed
deps._remove(file)
upload = True
# upload dependencies
if upload:
deps.save(deps_path)
remote_archive = backend.join(name, define.DB)
backend.put_archive(
db_root,
define.DEPENDENCIES_FILE,
remote_archive,
version,
)