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fix: handle branch name retrieval in GitHub Actions context #295

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fix: handle branch name retrieval in GitHub Actions context #295

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11 changes: 9 additions & 2 deletions src/utils/gitUtils.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -46,8 +46,15 @@ export class Git {
// Use the provided branch parameter, or fall back to current branch if not specified
let branch = sourceBranch;
if (!branch) {
const currentBranch = await git.branchLocal();
branch = currentBranch.current;
// In GitHub Actions PR context, GITHUB_HEAD_REF contains the actual PR branch name.
// branchLocal().current returns "pull/<n>/merge" in detached HEAD state, which is
// not a valid remote-tracking ref (it maps to refs/remotes/pull/<n>/merge, not origin/).
if (process.env.GITHUB_ACTIONS && process.env.GITHUB_HEAD_REF) {
branch = process.env.GITHUB_HEAD_REF;
} else {
const currentBranch = await git.branchLocal();
branch = currentBranch.current;
}
}

// ---- Get target branch (main) and PR commits ----
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