john
52 lines
1.3 KiB
Bash
Executable File
52 lines
1.3 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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usage() {
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cat <<'EOF'
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Usage:
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bash scripts/new-branch.sh <branch-name>
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Creates a new development branch from the latest origin/main.
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Environment:
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BASE_REF Base ref to create from. Defaults to origin/main when available.
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EOF
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}
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if [[ "${1:-}" == "-h" || "${1:-}" == "--help" || $# -ne 1 ]]; then
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usage
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[[ $# -eq 1 ]] && exit 0 || exit 1
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fi
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branch="$1"
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if [[ -n "$(git -C "${ROOT}" status --porcelain=v1 --untracked-files=all)" ]]; then
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echo "New branch check failed: current worktree is not clean." >&2
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git -C "${ROOT}" status --short --untracked-files=all >&2
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exit 1
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fi
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if 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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git -C "${ROOT}" rev-parse --verify --quiet "${BASE_REF}" >/dev/null || {
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echo "New branch check failed: base ref not found: ${BASE_REF}" >&2
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exit 1
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}
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git -C "${ROOT}" switch -c "${branch}" "${BASE_REF}"
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echo "Created ${branch} from ${BASE_REF}."
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