kubeconfig #

k8s() {
  # 无参：看当前
  if (( $# == 0 )); then
    print -r -- "Current KUBECONFIG: ${KUBECONFIG:-$HOME/.kube/config (default)}"
    return 0
  fi

  # 切回默认
  if [[ "$1" = "-" || "$1" = "--default" ]]; then
    unset KUBECONFIG
    print -r -- "Switched to default: $HOME/.kube/config"
    return 0
  fi

  # 解析路径：支持 ~ 和相对路径；不做任何“猜测/回落”
  local in="$1" p
  p="${~in}"                 # 展开 ~ 变量
  [[ "$p" != /* ]] && p="$PWD/$p"
  p="${p:A}"                 # 转绝对路径（zsh 自带）

  if [[ -d "$p" ]]; then
    print -r -- "Error: '$p' 是目录，请指定文件（例如 ~/.kube/xxx.yaml）"
    return 1
  fi
  if [[ ! -f "$p" ]]; then
    print -r -- "Error: 找不到 kubeconfig 文件：$p"
    return 1
  fi

  export KUBECONFIG="$p"
  print -r -- "Switched kubeconfig to: $KUBECONFIG"
}