how to add part of a.yaml to b.yaml

[caibirdme]

a.yaml

foo:
  bar: [1,2,3]

b.yaml

qq:
  we: [4,5,5]

I want to achieve b.yaml/.qq.we += q.yaml/.foo.bar but don't know how to do that

[mikefarah]

You can use the 'load' operator to load content from another file:

yq '.qq.we += (load("a.yaml") | .foo.bar)' b.yaml

Explanation:

• You want to add '.foo.bar' in file a.yaml to '.qq.we' in b.yaml
• Run yq again b.yaml
• (load("a.yaml") | .foo.bar) will load a.yaml and navigate to .foo.bar

[caibirdme]

Thx a lot this is really helpful