def pluck_ipfs_uris_from_manifest(uri: URI) -> Iterable[List[Any]]:
manifest_contents = json.loads(resolve_uri_contents(uri))
yield pluck_ipfs_uris(manifest_contents)
if "build_dependencies" in manifest_contents:
for dependency_uri in manifest_contents["build_dependencies"].values():
yield pluck_ipfs_uris_from_manifest(dependency_uri)
def write_ipfs_uris_to_disk(ethpm_dir: Path,
manifests: Dict[Address, Dict[str, str]]) -> None:
all_manifest_uris = [
version_release_data["manifestURI"]
for version_release_data in manifests.values() if
is_supported_content_addressed_uri(version_release_data["manifestURI"])
]
base_ipfs_uris = [uri for uri in all_manifest_uris if is_ipfs_uri(uri)]
nested_ipfs_uris = [
pluck_ipfs_uris_from_manifest(uri) for uri in all_manifest_uris
]
all_ipfs_uris = set(flatten(nested_ipfs_uris) + base_ipfs_uris)
# ex.
# ipfs uri: QmdvZEW3AaUntDfFkcbdnYzeLAAeD4YFeixQsdmHF88T6Q
# dir store: ethpmcli/Qm/dv/ZE/QmdvZEW3AaUntDfFkcbdnYzeLAAeD4YFeixQsdmHF88T6Q
for uri in all_ipfs_uris:
ipfs_hash = extract_ipfs_path_from_uri(uri)
first_two_bytes_dir = ethpm_dir / ipfs_hash[0:2]
second_two_bytes_dir = first_two_bytes_dir / ipfs_hash[2:4]
third_two_bytes_dir = second_two_bytes_dir / ipfs_hash[4:6]
asset_dest_path = third_two_bytes_dir / ipfs_hash
if not asset_dest_path.is_file():
if not first_two_bytes_dir.is_dir():
first_two_bytes_dir.mkdir()
if not second_two_bytes_dir.is_dir():
second_two_bytes_dir.mkdir()
if not third_two_bytes_dir.is_dir():
third_two_bytes_dir.mkdir()
asset_dest_path.touch()
asset_dest_path.write_bytes(resolve_uri_contents(uri))
logger.info("%s written to\n %s.\n", uri, asset_dest_path)
def release_package(self, package_name: str, version: str,
manifest_uri: str) -> bytes:
"""
Returns the release id generated by releasing a package on the current registry.
Requires ``web3.PM`` to have a registry set. Requires ``web3.eth.defaultAccount``
to be the registry owner.
* Parameters:
* ``package_name``: Must be a valid package name, matching the given manifest.
* ``version``: Must be a valid package version, matching the given manifest.
* ``manifest_uri``: Must be a valid content-addressed URI. Currently, only IPFS
and Github content-addressed URIs are supported.
"""
validate_is_supported_manifest_uri(manifest_uri)
raw_manifest = to_text(resolve_uri_contents(manifest_uri))
validate_raw_manifest_format(raw_manifest)
manifest = json.loads(raw_manifest)
validate_manifest_against_schema(manifest)
if package_name != manifest["package_name"]:
raise ManifestValidationError(
f"Provided package name: {package_name} does not match the package name "
f"found in the manifest: {manifest['package_name']}.")
if version != manifest["version"]:
raise ManifestValidationError(
f"Provided package version: {version} does not match the package version "
f"found in the manifest: {manifest['version']}.")
self._validate_set_registry()
return self.registry._release(package_name, version, manifest_uri)
def from_uri(cls, uri: URI, w3: Web3) -> "Package":
"""
Returns a Package object instantiated by a manifest located at a content-addressed URI.
A valid ``Web3`` instance is also required.
URI schemes supported:
- IPFS `ipfs://Qm...`
- HTTP `https://api.github.com/repos/:owner/:repo/git/blobs/:file_sha`
- Registry `erc1319://registry.eth:1/greeter?version=1.0.0`
.. code:: python
OwnedPackage = Package.from_uri('ipfs://QmbeVyFLSuEUxiXKwSsEjef7icpdTdA4kGG9BcrJXKNKUW', w3) # noqa: E501
"""
contents = to_text(resolve_uri_contents(uri))
validate_raw_manifest_format(contents)
manifest = json.loads(contents)
return cls(manifest, w3, uri)
def test_resolve_uri_contents_raises_exception_for_unsupported_schemes(uri):
with pytest.raises(CannotHandleURI):
resolve_uri_contents(uri)
