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sources/skopeo: change local container format

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Change the local storage format for containers to the `dir` format.
The `dir` format will be used to retain signatures and manifests.

The remove-signatures option is removed since the storage format now
supports them.

The final move (os.rename()) at the end of the fetch_one() method now
creates the checksum directory if it doesn't exist and moves the child
archive into it, adding to any existing archives that might exist in
other formats (from a previous version downloading a `docker-archive`).

Dropped the .tar suffix from the symlink in the skopeo stage since it's
not necessary and the target of the link might be a directory now.

The parent class exists() method checks if there is a *file* in the
sources cache that matches the checksum.  For containers, this used to
be a file called container-image.tar under a directory that matches the
checksum, so for containers it always returned False.  Added an override
for the skopeo source that checks for the new directory archive.
This commit is contained in:
Achilleas Koutsou 2023-03-09 14:41:53 +01:00 • committed by Ondřej Budai
parent be76d6f355
commit ce29a4af73
2 changed files with 23 additions and 14 deletions
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2
stages/org.osbuild.skopeo
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@ -82,7 +82,7 @@ def main(inputs, output, options):
# treats them special, like e.g. /some/path:tag, so we make a symlink to the real name
# and pass the symlink name to skopeo to make it work with anything
with tempfile.TemporaryDirectory() as tmpdir:
linkname = os.path.join(tmpdir, "image.tar")
linkname = os.path.join(tmpdir, "image")
os.symlink(source, linkname)
if container_format == "dir":