Fix workflow_call diff: use GitHub API to detect default branch#18
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Fix workflow_call diff: use GitHub API to detect default branch#18
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git symbolic-ref fails silently (sed exits 0 on empty input, masking the fallback). Use the GitHub API with github.token to reliably get the repo's default branch name instead. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
LandonS23
approved these changes
Mar 4, 2026
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Summary
git symbolic-ref refs/remotes/origin/HEADreturns nothing in Actions (not set byactions/checkout), andsedexits 0 on empty input so the|| echo "main"fallback never triggeredgithub.tokento reliably get the repo'sdefault_branchTest plan
workflow_callfrom another repo — diff step should complete withoutfatal: bad revisionerrorpull_requesttrigger still works🤖 Generated with Claude Code
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