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Fix preview deployment comments in workflow_run triggered jobs - #34
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The preview for PR 33 deployed correctly but no comment appeared on the pull request. pr-preview-action posts its sticky comment by calling marocchino/sticky-pull-request-comment without a `number`, which makes that action resolve the pull request from the event payload. A workflow_run payload contains no pull request, so it had nothing to comment on. The action's `pr-number` input only feeds the deploy path, not the comment. The same blank context showed up in the deploy commit, which read "Deploy preview for PR 🛫" because the default message interpolates github.event.number. Disable the action's own comment and post it from a dedicated step that passes the validated number explicitly, and set deploy-commit-message so the commit names the pull request. Both are annotated so the next reader does not collapse them back. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_015KZdA347fHh4xxpdHkVwxQ
rhingo
self-requested a review
September 25, 2026 17:43
rhingo
approved these changes
Sep 25, 2026
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Summary
This change fixes preview deployment URL comments not appearing on pull requests when the deployment is triggered via
workflow_runevents. The issue stems from thepr-preview-action's built-in comment functionality being unable to resolve the pull request number from theworkflow_runevent payload.Key Changes
pr-preview-action's automatic comment generation by settingcomment: falsesteps.pr.outputs.numbermarocchino/sticky-pull-request-comment@v2to post the preview URL comment with:numberinput (required forworkflow_runevents)Implementation Details
The root cause is that
workflow_runevent payloads don't include pull request context, so the original action's sticky comment logic fails when trying to auto-resolve the PR number. By explicitly passingsteps.pr.outputs.number(extracted in a previous step) to the comment action, we ensure the comment is posted to the correct pull request regardless of the trigger event type.https://claude.ai/code/session_015KZdA347fHh4xxpdHkVwxQ