error

Error Handling

Error Dialogue

When the executed command outputs something to stderr, Tuw will display an error dialogue.

{
    "command": "notcommand",
    "components": []
}

Exit Code Checking

If your command does not use stderr for error handling, you can use the check_exit_code option.
This option displays an error dialogue when the exit code is not 0.
You can also customize the success code using the exit_success option.

{
    "command": "echo exit code is zero.",
    "check_exit_code": true,
    "exit_success": 10,
    "components": []
}

show_last_line Option

If your command neither uses stderr nor exit codes for error handling, you can use the show_last_line option.
It displays the last line from stdout.
When check_exit_code is enabled, it can also show the last line in the error dialogue.

{
    "command": "echo Fake Error!",
    "show_last_line": true,
    "components": []
}