I'm trying to extract the list of packages from skopeo inspect output, but this does not seem to work:

❯ skopeo inspect docker://ghcr.io/ublue-os/bluefin-dx:gts | jq '.Labels."dev.hhd.rechunk.info".packages'

The above works without the ".packages" part and the content is:

❯ skopeo inspect docker://ghcr.io/ublue-os/bluefin-dx:gts | jq '.Labels."dev.hhd.rechunk.info"'
"{\"version\": 2, \"uniq\": \"gts-40.20250305\", \"packages\": {\"libgcc\": \"14.2.1-3.fc40\", .....

How can I ask jq to go into this object and extract just the "packages" part?

I'm trying to extract the list of packages from skopeo inspect output, but this does not seem to work:

❯ skopeo inspect docker://ghcr.io/ublue-os/bluefin-dx:gts | jq '.Labels."dev.hhd.rechunk.info".packages'

The above works without the ".packages" part and the content is:

❯ skopeo inspect docker://ghcr.io/ublue-os/bluefin-dx:gts | jq '.Labels."dev.hhd.rechunk.info"'
"{\"version\": 2, \"uniq\": \"gts-40.20250305\", \"packages\": {\"libgcc\": \"14.2.1-3.fc40\", .....

How can I ask jq to go into this object and extract just the "packages" part?

• jq

1 Answer 1

Use fromjson to parse json text:

$ skopeo inspect docker://ghcr.io/ublue-os/bluefin-dx:gts | jq '.Labels."dev.hhd.rechunk.info" | fromjson.packages'
{
  "libgcc": "14.2.1-3.fc40"
}