Extract one value from submapping

[bpj]

Noob question, most likely a FAQ:

I have input like this:

meta:
  version: 1.234
data:
  foo:
    corporis-aliquam:
      this: similique
      that: Est
    tenetur-rerum:
      this: ipsum
      that: Aut
    repellat-officiis:
      this: sint
      that: Et

I want to convert it into this:

corporis-aliquam: similique
tenetur-rerum: ipsum
repellat-officiis: sint

i.e. the original keys from the data.foo with the values of this from their original values.

Seemingly simple but I can’t figure out the right expression.

The actual input obviously has other keys and values and a couple of thousand entries. It would be easy to do with a script, but I really would like to know how to do it with yq! :-)

[mikefarah]

You can do it like so:

yq '.data.foo[] | {key: .this}' data1.yaml

Explanation:

• .data.foo[] matches all the value nodes of data.foo
• This is then piped into {key: .this} making a map entry for each value, where they original key is the key; and .this is the value.