Function suggestionForExactCommand

src/tools/BashTool/bashPermissions.ts:266–295

(command: string)

}

function suggestionForExactCommand(command: string): PermissionUpdate[] {
  // Heredoc commands contain multi-line content that changes each invocation,
  // making exact-match rules useless (they'll never match again). Extract a
  // stable prefix before the heredoc operator and suggest a prefix rule instead.
  const heredocPrefix = extractPrefixBeforeHeredoc(command)
  if (heredocPrefix) {
    return sharedSuggestionForPrefix(BashTool.name, heredocPrefix)
  }

  // Multiline commands without heredoc also make poor exact-match rules.
  // Saving the full multiline text can produce patterns containing `:*` in
  // the middle, which fails permission validation and corrupts the settings
  // file. Use the first line as a prefix rule instead.
  if (command.includes('\n')) {
    const firstLine = command.split('\n')[0]!.trim()
    if (firstLine) {
      return sharedSuggestionForPrefix(BashTool.name, firstLine)
    }
  }

  // Single-line commands: extract a 2-word prefix for reusable rules.
  // Without this, exact-match rules are saved that never match future
  // invocations with different arguments.
  const prefix = getSimpleCommandPrefix(command)
  if (prefix) {
    return sharedSuggestionForPrefix(BashTool.name, prefix)
  }

  return sharedSuggestionForExactCommand(BashTool.name, command)
}

/**
 * If the command contains a heredoc (<<), extract the command prefix before it.