progress bar missing when copying artifact with zero-length layer from registry to OCI layout #1442
Description
What happened in your environment?
Tried to copy a self-made artifact with multiple zero-length layers from registry to local OCI image layout but see a progress bar missing in the terminal output
> oras cp --to-oci-layout jinzha1.azurecr.io/test:blank-progress .
✓ Copied application/vnd.docker.container.image.v1+json 0/0 B 100.00% 9ms
└─ sha256:e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
⠋ [....................]( 0 B/s) Copying application/vnd.docker.image.rootfs.diff.tar.gzip 0.00/0 B 0.00% 26ms
└─ sha256:e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
✓ Copied application/vnd.docker.distribution.manifest.v2+json 6.16/6.16 kB 100.00% 19ms
└─ sha256:47506275bd97c02cd5f2c8c86d67d1faf8d3816ba0278aae63fb9cd25ec02e6c
Copied [registry] jinzha1.azurecr.io/test:blank-progress => [oci-layout] .
Digest: sha256:47506275bd97c02cd5f2c8c86d67d1faf8d3816ba0278aae63fb9cd25ec02e6cWhat did you expect to happen?
Should show copied for the application/vnd.docker.image.rootfs.diff.tar.gzip layer
How can we reproduce it?
Run oras cp --to-oci-layout jinzha1.azurecr.io/test:blank-progress .
What is the version of your ORAS CLI?
Version: 1.2.0
Go version: go1.22.3
Git commit: dcef719
Git tree state: clean
What is your OS environment?
Window 11
Are you willing to submit PRs to fix it?
- Yes, I am willing to fix it.