Update nested array value in yaml with yq

Given a yaml file (helmfile) like the following

releases:
  - chart: ../charts/foo
    name: foo
    namespace: '{{ .Values.stack }}'
    values:
      - ../config/templates/foo-values.yaml.gotmpl
    set:
      - name: image.tag
        value: 22
      - name: replicas
        value: 1
  - chart: ../charts/bar
    name: bar
    namespace: '{{ .Values.stack }}'
    values:
      - ../config/templates/bar-values.yaml.gotmpl
    set:
      - name: image.bar_proxy.tag
        value: 46
      - name: image.bar.tag
        value: 29
      - name: replicas
        value: 1

I'm trying to figure out a clean way to update a specific image tag. For example, I'd like to update image.bar_proxy.tag from 46 to 51.

I have the following, which does the job, but it requires that you know the exact index of the array item:

yq -y '.releases[] |= if .name=="bar" then .set[0].value |= 51 else . end' helmfile-example.yaml

So if the array order were to change at some point this would break.

A preferred solution would be: "update image.bar_proxy.tag value from 46 to 51 where set[].name==image.bar_proxy.tag". Any ideas on how to achieve a more specific conditional selection like this?

FYI our yq version:

$ yq --version
yq 2.10.0

You can use the following filter to make it work. It works by dynamically selecting the index of the object where your tag exists. On the selected object .value=51 will update the value as you wanted. You can also use the -i flag to do in-place modification of the original file.

yq -y '.releases[].set |= map(select(.name == "image.bar_proxy.tag").value=51)' yaml

See the underlying jq filter acting on the JSON object at jq-playground