snapshot of https://github.com/ory/keto.git (master, 2026-09-16; blobs > 131072B omitted)

oryx/cmdx/user_input.go

@@ -0,0 +1,57 @@
+// Copyright © 2023 Ory Corp
+// SPDX-License-Identifier: Apache-2.0
+
+package cmdx
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"os"
+	"strings"
+
+	"github.com/pkg/errors"
+)
+
+// asks for confirmation with the question string s and reads the answer
+// pass nil to use os.Stdin and os.Stdout
+func AskForConfirmation(s string, stdin io.Reader, stdout io.Writer) bool {
+	if stdin == nil {
+		stdin = os.Stdin
+	}
+	if stdout == nil {
+		stdout = os.Stdout
+	}
+
+	ok, err := AskScannerForConfirmation(s, bufio.NewReader(stdin), stdout)
+	if err != nil {
+		Must(err, "Unable to confirm: %s", err)
+	}
+
+	return ok
+}
+
+func AskScannerForConfirmation(s string, reader *bufio.Reader, stdout io.Writer) (bool, error) {
+	if stdout == nil {
+		stdout = os.Stdout
+	}
+
+	for {
+		_, err := fmt.Fprintf(stdout, "%s [y/n]: ", s)
+		if err != nil {
+			return false, errors.Wrap(err, "unable to print to stdout")
+		}
+
+		response, err := reader.ReadString('\n')
+		if err != nil {
+			return false, errors.Wrap(err, "unable to read from stdin")
+		}
+
+		response = strings.ToLower(strings.TrimSpace(response))
+		if response == "y" || response == "yes" {
+			return true, nil
+		} else if response == "n" || response == "no" {
+			return false, nil
+		}
+	}
+}