Extracting Quoted String Values from Kustomize Literals

[excalq]

Hello, I'm working on a GitHub action which will use yq to extract a value from a Kustomize K8s file, which uses key-value literals to build ConfigMaps.

The subject text:

...
configMapGenerator:
  - name: client
    behavior: merge
    literals:
      - VITE_ENV=demo
      - VITE_SUPPORTED_APP_IDS="1,10,3323,8888"

Attempted yq:

yq '.configMapGenerator[] | select(.name == "client") | .literals[] | select(. == "VITE_SUPPORTED_APP_IDS=*") | split("=") | .[1]' k8s/demo/kustomization.yaml

Actual Result: "1,10,3323,8888"
Desired Result: 1,10,3323,8888

This can be fixed outside of yq with additional piping to tr -d '"', but I was wondering if there's a pattern to do so all within a yq command. Thanks!

[ccoVeille]

Isn't the -c argument like with jq?

-c, --compact-output compact instead of pretty-printed output;

[mikefarah]

The list entry VITE_SUPPORTED_APP_IDS="1,10,3323,8888" is a string, so the best way I can think of to manipulate that string is with regex. You can use the substitute (sub) operator:

The regex here basically matches everything inside the double quotes in a capture group.

yq '.configMapGenerator[] | select(.name == "client") | .literals[] | \ 
   select(. == "VITE_SUPPORTED_APP_IDS=*") | \
   sub(".*=\"(.*)\"", "${1}")' data1.yaml

1,10,3323,8888