fix(ruby): skip empty Comment nodes to avoid Layout/EmptyComment RuboCop offense in ruby-v2

[iamnamananand996]

Description

Linear ticket: Closes

Types with no description were emitting a bare # line above their class definition in ruby-v2 generator output, triggering the Layout/EmptyComment RuboCop offense on generated SDKs. The Ruby AST Comment.write path is now guarded so that whitespace-only or empty docs produce no output at all, instead of writing a bare comment marker.

Changes Made

• generators/ruby-v2/ast/src/ast/Comment.ts: tighten the write guard from this.docs != null to this.docs?.trim() so undocumented model classes no longer emit a leading # line.
• generators/ruby-v2/sdk/changes/unreleased/fix-empty-comment-rubocop.yml: add a fix changelog entry describing the RuboCop fix.
• Updated README.md generator (if applicable)

Testing

• Unit tests added/updated
• Manual testing completed

Link to Devin session: https://app.devin.ai/sessions/2e4e587dd160400390839880a5434932
Requested by: @iamnamananand996

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SDK Generation Benchmark Results

Comparing PR branch against median of 5 nightly run(s) on main (latest: 2026-05-12T05:12:12Z).

Full benchmark table (click to expand)

Generator	Spec	main (generator)	main (E2E)	PR (generator)	Delta
ruby-sdk-v2	square	81s (n=5)	118s (n=5)	80s	-1s (-1.2%)

main (generator): generator-only time via --skip-scripts (includes Docker image build, container startup, IR parsing, and code generation — this is the same Docker-based flow customers use via fern generate). main (E2E): full customer-observable time including build/test scripts (nightly baseline, informational). Delta is computed against generator-only baseline.
⚠️ = generation exited with a non-zero exit code (timing may not reflect a successful run).
Baseline from nightly runs on main (latest: 2026-05-12T05:12:12Z). Trigger benchmark-baseline to refresh.
Last updated: 2026-05-12 19:04 UTC