Демо нового CLI в Ktor 3.1

#kotlin #ktor #cli

readline4k - Kotlin/Native библиотека для разработки консольных интерактивных приложений для Desktop

val history = "history.txt" // Filesystem path to the history file.

// Configure the LineEditor.
val config = LineEditorConfig(
    maxHistorySize = 100,
    completionType = CompletionType.LIST,
    // See the documentation for more options.
)

// Create a new LineEditor instance.
val editor = SimpleLineEditor(
    linePrefix = "> ",
    config = config,
).also { editor ->
    // Set up the completer and highlighter.
    editor
        // Provides file completion (optional).
        .withCompleter(SimpleFileCompleter())
        // Provides color highlighting (optional).
        .withHighlighter(SimpleHighlighter())

    // Load the history from the disk (throws LineEditorError if it fails).
    editor.loadHistory(history).getOrThrow()
}

println("Welcome to the LineEditor example!")
println("Press Ctrl+C to exit")

while (true) {
    // Read a line from the user.
    editor.readLine()
        .onFailure { err ->
            // err is a LineEditorError
            println(err.message)
            break

        }
        .onSuccess { line ->
            // We can also add the line to the history
            // automatically by setting autoAddHistory = true in the config.
            editor.addHistoryEntry(line)
            println(line)
        }
}

// Save the history to disk.
editor.saveHistory(history)

#kotlin #native #cli