chore: preview of onboarding google-cloud-vision gems to Librarian

[suztomo]

Summary

Preview of migrating the three google-cloud-vision gems requiring custom code generation via toys tasks from OwlBot to Librarian:

• google-cloud-vision-v1
• google-cloud-vision-v1p3beta1
• google-cloud-vision-v1p4beta1

Resolves googleapis/librarian#7449.
Requires Librarian PR googleapis/librarian#7513.

Configuration (librarian.yaml)

Each gem configures ruby.toys_tasks to run generate-helpers after code generation:

  - name: google-cloud-vision-v1
    version: 1.7.1
    apis:
      - path: google/cloud/vision/v1
        ruby:
          ruby_cloud_opts:
            ruby-cloud-env-prefix: VISION
    keep:
      - .toys/generate-helpers.rb
      - acceptance/data
      - acceptance/google/cloud/vision/v1/helpers_smoke_test.rb
      - acceptance/google/cloud/vision/v1/image_annotator_smoke_test.rb
      - lib/google/cloud/vision/v1/image_annotator/helpers.rb
      - owlbot-templates/helpers_smoke_test.erb
      - owlbot-templates/image_annotator_helpers.erb
      - owlbot-templates/image_annotator_helpers_test.erb
      - test/google/cloud/vision/v1/image_annotator_helpers_test.rb
    ruby:
      toys_tasks:
        - generate-helpers

Diff Analysis

• Custom Code Generation (Toys Tasks):
  • Invokes toys generate-helpers in the gem output directory after code generation, using the ERB templates under owlbot-templates/ to generate helpers.rb, helpers_smoke_test.rb, and image_annotator_helpers_test.rb.
• OwlBot Removal:
  • Removed .OwlBot.yaml, .owlbot.rb, and .owlbot-manifest.json from all three gems.
• Service Documentation & Gemspec Summaries:
  • Descriptions and summaries in README.md and .gemspec files updated to match service.yaml.
• Snippet Script Permissions:
  • File permissions updated from 755 to 644 in snippets/.

Verification

Local tests and RuboCop ran cleanly:

toys ci --test --rubocop --doctest --gems google-cloud-vision-v1,google-cloud-vision-v1p3beta1,google-cloud-vision-v1p4beta1

Result: CI passed across all three gems (all unit tests, RuboCop checks, and doctests passed with 0 failures, 0 errors, 0 offenses).