Feature request: .dyffignore

[jrauschenbusch]

For more advanced compare operations like in GitOps repositories and automated environment promotion it‘s often required to exclude known but accepted differences.

It would be really good to have a mechanism like a .gitignore file, but for diffs. Furthermore it would be good to be able to exclude files and and optional subparts of a file expressed via JSON Path.

Maybe in TOML

[[excludes]]
path = "/path/to/a/deploy.yaml"
json-path = [".spec.template.spec.containers[?(name='container_1')].resources"]

[[excludes]]
path = "/path/toc/other/**/manifest.yaml"

or in YAML:

excludes:
  - file: /path/to/a/deploy.yaml
    json-path:
    - ".spec.template.spec.containers[?(name='container_1')].resources"
  - path: /path/to/other/**/manifest.yaml