fix(github): Use pull_request_target for changelog preview on fork PRs#723
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fix(github): Use pull_request_target for changelog preview on fork PRs#723
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The changelog-preview workflow failed with HTTP 403 when trying to post comments on PRs from forks because the pull_request event provides a read-only GITHUB_TOKEN for security reasons. Switch to pull_request_target which runs in the base repo context with write permissions. This requires explicitly specifying the PR merge ref for checkout since pull_request_target defaults to the base branch. This is safe because the workflow only reads git metadata and config - no PR code is executed (Craft binary comes from releases).
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betegon
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Jan 16, 2026
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Summary
Fixes changelog-preview workflow failing with HTTP 403 on PRs from forks.
Problem: The
pull_requestevent provides a read-onlyGITHUB_TOKENfor fork PRs (security measure), preventing the workflow from posting comments.Solution: Switch to
pull_request_targetwhich runs in the base repository context with write permissions.Changes
pull_requesttopull_request_targetrefto checkout step (required becausepull_request_targetdefaults to base branch)pull_request_targetSecurity
This is safe because:
.craft.ymlconfig are read