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gastown/.githooks/pre-push

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#!/usr/bin/env bash
# Block PRs by preventing pushes to arbitrary feature branches.
# Gas Town agents push to main (crew) or polecat/* branches (polecats).
# PRs are for external contributors only.
# Allowed patterns:
# main, beads-sync - Direct work branches
# polecat/* - Polecat working branches (Refinery merges these)
while read local_ref local_sha remote_ref remote_sha; do
# Skip tags - they're allowed for releases
if [[ "$remote_ref" == refs/tags/* ]]; then
continue
fi
branch="${remote_ref#refs/heads/}"
case "$branch" in
main|beads-sync|polecat/*)
# Allowed branches
;;
*)
# Allow feature branches when contributing to upstream (fork workflow).
# If an 'upstream' remote exists, this is a contribution setup where
# feature branches are needed for PRs. See: #848
if ! git remote get-url upstream &>/dev/null; then
echo "ERROR: Invalid branch for Gas Town agents."
echo ""
echo "Blocked push to: $branch"
echo ""
echo "Allowed branches:"
echo " main - Crew workers push here directly"
echo " polecat/* - Polecat working branches"
echo " beads-sync - Beads synchronization"
echo ""
echo "Do NOT create PRs. Push to main or let Refinery merge polecat work."
exit 1
fi
;;
esac
done
exit 0