Differential D5004 Diff 18596 swh/model/identifiers.py

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swh/model/identifiers.py

Show First 20 Lines • Show All 727 Lines • ▼ Show 20 Lines	def raw_extrinsic_metadata_identifier(metadata: Dict[str, Any]) -> str:
"""Return the intrinsic identifier for a RawExtrinsicMetadata object.		"""Return the intrinsic identifier for a RawExtrinsicMetadata object.

A raw_extrinsic_metadata identifier is a salted sha1 (using the git		A raw_extrinsic_metadata identifier is a salted sha1 (using the git
hashing algorithm with the ``raw_extrinsic_metadata`` object type) of		hashing algorithm with the ``raw_extrinsic_metadata`` object type) of
a manifest following the format:		a manifest following the format:

```		```
target $ExtendedSwhid		target $ExtendedSwhid
discovery_date $ISO8601		discovery_date $Timestamp
authority $StrWithoutSpaces $IRI		authority $StrWithoutSpaces $IRI
fetcher $Str $Version		fetcher $Str $Version
format $StrWithoutSpaces		format $StrWithoutSpaces
origin $IRI <- optional		origin $IRI <- optional
visit $IntInDecimal <- optional		visit $IntInDecimal <- optional
snapshot $CoreSwhid <- optional		snapshot $CoreSwhid <- optional
release $CoreSwhid <- optional		release $CoreSwhid <- optional
revision $CoreSwhid <- optional		revision $CoreSwhid <- optional
Show All 9 Lines	def raw_extrinsic_metadata_identifier(metadata: Dict[str, Any]) -> str:
$StrWithoutSpaces and $Version are ASCII strings, and may not contain spaces.		$StrWithoutSpaces and $Version are ASCII strings, and may not contain spaces.

$Str is an UTF-8 string.		$Str is an UTF-8 string.

$CoreSwhid are core SWHIDs, as defined in :ref:`persistent-identifiers`.		$CoreSwhid are core SWHIDs, as defined in :ref:`persistent-identifiers`.
$ExtendedSwhid is a core SWHID, with extra types allowed ('ori' for		$ExtendedSwhid is a core SWHID, with extra types allowed ('ori' for
origins and 'emd' for raw extrinsic metadata)		origins and 'emd' for raw extrinsic metadata)

		$Timestamp is a decimal representation of the integer number of seconds since
		the UNIX epoch (1970-01-01 00:00:00 UTC), with no leading '0'
		(unless the timestamp value is zero) and no timezone.
		It may be negative by prefixing it with a '-', which must not be followed
		by a '0'.

Newlines in $Bytes, $Str, and $Iri are escaped as with other git fields,		Newlines in $Bytes, $Str, and $Iri are escaped as with other git fields,
ie. by adding a space after them.		ie. by adding a space after them.

Returns:		Returns:
str: the intrinsic identifier for `metadata`		str: the intrinsic identifier for `metadata`

"""		"""
		timestamp = metadata["discovery_date"].timestamp()

headers = [		headers = [
(b"target", str(metadata["target"]).encode()),		(b"target", str(metadata["target"]).encode()),
(b"discovery_date", metadata["discovery_date"].isoformat().encode("ascii")),		(b"discovery_date", str(int(timestamp)).encode("ascii")),
(		(
b"authority",		b"authority",
f"{metadata['authority']['type']} {metadata['authority']['url']}".encode(),		f"{metadata['authority']['type']} {metadata['authority']['url']}".encode(),
),		),
(		(
b"fetcher",		b"fetcher",
f"{metadata['fetcher']['name']} {metadata['fetcher']['version']}".encode(),		f"{metadata['fetcher']['name']} {metadata['fetcher']['version']}".encode(),
),		),
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