fix: support fork PRs by fetching via refs/pull/N/head#1219
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RobotSail wants to merge 1 commit intoanthropics:mainfrom
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fix: support fork PRs by fetching via refs/pull/N/head#1219RobotSail wants to merge 1 commit intoanthropics:mainfrom
RobotSail wants to merge 1 commit intoanthropics:mainfrom
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For cross-repository (fork) PRs, the head branch doesn't exist on the origin remote. The action previously tried `git fetch origin <branch>` which fails with "couldn't find remote ref". Now detects fork PRs via `isCrossRepository` from the GraphQL API and fetches using `pull/<number>/head:<branch>` refspec instead, which GitHub exposes for all PR heads regardless of source repo. Changes: - Add `isCrossRepository` to PR GraphQL query and type - Use `refs/pull/N/head` refspec for fork PRs in setupBranch() Fixes anthropics#1218
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Summary
fatal: couldn't find remote ref <branch>isCrossRepositoryfield to the PR GraphQL query and typepull/<number>/head:<branch>refspec instead of fetching by branch nameProblem
When
@claudeis tagged on a PR from a fork, the action runsgit fetch origin --depth=20 <branch-name>. Since the branch only exists on the fork's remote (not origin), this fails. GitHub exposes fork PR content atrefs/pull/<number>/head, which works regardless of source repo.Changes
src/github/api/queries/github.tsisCrossRepositoryto PR GraphQL querysrc/github/types.tsisCrossRepository: booleantoGitHubPullRequestsrc/github/operations/branch.tspull/N/headrefspec for fork PRs insetupBranch()test/data-formatter.test.tsisCrossRepositoryto test fixtureTest plan
bun run typecheckpassesbun test— 664 tests pass, 0 failuresFixes #1218
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