#!/usr/bin/env bash
# nerf-git-revert -- Create a new commit that undoes a previous commit. Does not rewrite history -- safe to use on pushed commits.
# Generated from git manifest. Do not edit directly.
# nerf:threat:read=workspace
# nerf:threat:write=workspace

set -euo pipefail

_NERF_DRY_RUN=""

usage() {
  cat >&2 <<'EOF'
Usage: nerf-git-revert <ref>

Arguments:
  <ref> (required)
      Commit to revert (e.g. HEAD, a commit SHA, or HEAD~2)

Maps to: git revert --no-edit <ref>

Create a new commit that undoes a previous commit. Does not rewrite history -- safe to use on pushed commits..
EOF
  exit 1
}

while [[ $# -gt 0 ]]; do
  case "$1" in
    --nerf-dry-run) _NERF_DRY_RUN="true"; shift 1 ;;
    -h|--help) usage ;;
    --) shift; break ;;
    *) break ;;
  esac
done

REF="${1:-}"
shift 2>/dev/null || true

if [[ -n "${REF}" ]] && [[ "${REF}" == -* ]]; then
  echo "error: nerf-git-revert: <ref> cannot start with '-'" >&2
  echo "  hint: use -- before positional arguments if needed" >&2
  exit 1
fi

if [[ -z "${REF}" ]]; then
  echo "error: nerf-git-revert: missing required argument <ref>" >&2
  echo "  hint: provide a value for <ref>" >&2
  usage
fi

if [[ "$_NERF_DRY_RUN" == "true" ]]; then
  echo "dry-run: git revert --no-edit "${REF}""
  exit 0
fi

exec git revert --no-edit "${REF}"
