john
71 lines
1.7 KiB
Bash
Executable File
71 lines
1.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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ROOT="$(cd "$(dirname "$0")/.." && pwd)"
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BASE_REF="${BASE_REF:-}"
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SKIP_FETCH=0
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usage() {
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cat <<'EOF'
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Usage:
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bash scripts/check-branch-baseline.sh [--skip-fetch]
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Checks that the current branch is not behind origin/main.
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Environment:
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BASE_REF Base ref to compare against. Defaults to origin/main when available.
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EOF
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}
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while [[ $# -gt 0 ]]; do
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case "$1" in
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--skip-fetch) SKIP_FETCH=1 ;;
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-h|--help)
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usage
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exit 0
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;;
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*)
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echo "Unknown argument: $1" >&2
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usage >&2
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exit 1
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;;
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esac
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shift
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done
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git -C "${ROOT}" rev-parse --is-inside-work-tree >/dev/null
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if [[ "${SKIP_FETCH}" -ne 1 ]] && git -C "${ROOT}" remote get-url origin >/dev/null 2>&1; then
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git -C "${ROOT}" fetch origin --prune
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fi
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if [[ -z "${BASE_REF}" ]]; then
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for candidate in origin/main origin/master main master; do
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if git -C "${ROOT}" rev-parse --verify --quiet "${candidate}" >/dev/null; then
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BASE_REF="${candidate}"
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break
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fi
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done
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fi
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branch="$(git -C "${ROOT}" branch --show-current)"
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if [[ -z "${branch}" ]]; then
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echo "Baseline check failed: detached HEAD is not allowed for development or release." >&2
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exit 1
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fi
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if ! git -C "${ROOT}" rev-parse --verify --quiet "${BASE_REF}" >/dev/null; then
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echo "Baseline check failed: base ref not found: ${BASE_REF}" >&2
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exit 1
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fi
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read -r ahead behind < <(git -C "${ROOT}" rev-list --left-right --count "HEAD...${BASE_REF}")
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if [[ "${behind}" -ne 0 ]]; then
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echo "Baseline check failed: ${branch} is behind ${BASE_REF} by ${behind} commit(s)." >&2
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echo "Run: git fetch origin --prune && git rebase ${BASE_REF}" >&2
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exit 1
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fi
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echo "Baseline check passed: ${branch} is current with ${BASE_REF} (ahead ${ahead})."
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