#!/bin/sh
set -eu

validator="$(dirname "$0")/validate-public-snapshot-at-commit.js"
while read -r old_value new_value ref_name; do
  [ "$ref_name" = "refs/heads/main" ] || continue
  [ "$new_value" = "0000000000000000000000000000000000000000" ] && {
    echo "REPO-012 main deletion is forbidden" >&2
    exit 1
  }
  node "$validator" --git-dir "$(git rev-parse --git-dir)" --commit "$new_value"
done