# Check if a binary is available in $env.PATH.
# Throws error if not.
export def require-binary [
  bin: string # name of a binary, that should be in $env.PATH
] {
    if (which $bin | is-empty) {
      error make {
        msg: $"`$bin` is not installed or not in PATH"
        label: {
          text: $"run `which $bin` to verify"
        }
      }
    }
}

export def save-if-changed [
  path: path
  content: string
] {
    if (not ($path | path exists)) or ((open --raw $path) != $content) {
      $content | save --force $path
    }
}