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osbuild-mpp: recognize manifest without mediaType and with manifests fields as a list

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According to the OCI Image Index specification the mediaType field is not mandatory
Assume that it is a list if mediaType is not set while manifests field is

Signed-off-by: Ygal Blum <ygal.blum@gmail.com>
This commit is contained in:
Ygal Blum 2022-11-06 12:07:22 +02:00 • committed by David Rheinsberg
parent 7729e6225e
commit 6cdc27366b
1 changed files with 7 additions and 1 deletions
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8
tools/osbuild-mpp
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@ -407,7 +407,13 @@ class ImageManifest:
self.digest = "sha256:" + hashlib.sha256(raw).hexdigest()
def is_manifest_list(self):
return self.media_type in ("application/vnd.docker.distribution.manifest.list.v2+json", "application/vnd.oci.image.index.v1+json")
# Check if mediaType is set according to docker or oci specifications
if self.media_type in ("application/vnd.docker.distribution.manifest.list.v2+json", "application/vnd.oci.image.index.v1+json"):
return True
# According to the OCI spec, setting mediaType is not mandatory. So, if it is not set at all, check for the existance of manifests
if self.media_type == "" and self.json.get("manifests") is not None:
return True
return False
def _match_platform(self, wanted_arch, wanted_os, wanted_variant):
for m in self.json.get("manifests", []):