Appending to an existing array with double quoted style not working

[inianv]

When trying to update/append to an array of existing strings, keeping "double" style also modifies other elements. As seen on yq version 4.5.1 (Linux)

apiVersion: batch/v1
kind: Job
metadata:
    name: test004
    annotations:
      kompose.cmd: kompose convert -f docker-compose.yml
spec:
    template:
        spec:
            containers:
                - name: "eee"
                  image: "test"
                  command: ["a", "b", "c"]
                  ports:
                   - containerPort: 6565

Objective is to modify the command to

command: ["a", "b", "c", "d"]

Tried below which works, but also applies the style attribute to containerPort, converting it to a string.

yq e '.spec.template.spec.containers[0].command |= ["a", "b", "c","d"]|..style="double"' yaml

[mikefarah]

.. is a recursive operator that matches everything, you need to match the elements of that specific array:

yq e '.spec.template.spec.containers[0].command |= ["a", "b", "c","d"]| .spec.template.spec.containers[0].command.[] style="double"' yaml

I'm not at a pc with yq but I'm pretty sure you can also just:

yq e '.spec.template.spec.containers[0].command += "d"' yaml

[inianv]

@mikefarah I was hoping below would work too, but it is leaving d, not quoted like the rest i.e. ["a", "b", "c", d]

yq e '.spec.template.spec.containers[0].command += "d"' yaml

Any chance to optimize this to a shorter form?

yq e '.spec.template.spec.containers[0].command |= ["a", "b", "c","d"]| .spec.template.spec.containers[0].command.[] style="double"'

[mikefarah]

Ah yep I see it now - the newly appended element has no styling and so it defaults to idiomatic yaml styling - that is no quotes.

I guess the best thing for yq to do would be to look at the previous element in the array and copy the styling when appending.

[mikefarah]

Ooh I did just think of a shorter form using variables you could use in the interim:

yq e '.spec.template.spec.containers[0].command as $x | $x = ["a", "b", "c","d"] | ($x | .[]) style= "double"' file.yaml

It looks like you're just adding 'd' so you could also:

yq e '.spec.template.spec.containers[0].command as $x | $x += "d" | $x[-1] style="double"' file.yaml

[mikefarah]

Fixed in 4.19.1.