Label based on file paths

Here's an example of a Revy configuration that label pull requests that contain changes to a certain filepath.

apiVersion: reviewpad.com/v0.0.4

labels:
  critical:
    description: critical changes
    # color is the hexadecimal color code for the label, without the leading #.
    color: fd5e53

rules:
  changesMainFile:
    kind: patch
    description: Patch contains changes to the main file
    spec: $hasFileName("go/main.go")

protectionGates:
  - name: critical
    description: Modifications of critical code require careful review
    patchRules:
      - rule: changesMainFile
    actions:
      - $addLabel("critical")