Add rune input functions

back/cmd.go

@@ -11,7 +11,7 @@ import (
 )
 
 // WriteToStdin is a utility function that writes a byte slice to a command's stdin.
-func WriteToStdinAndZeroizeInput(cmd *exec.Cmd, input []byte) error {
+func WriteToStdin(cmd *exec.Cmd, input []byte, zeroizeInput bool) error {
 	stdin, err := cmd.StdinPipe()
 	if err != nil {
 		return errors.New("unable to access stdin for system command: " + err.Error())
@@ -21,7 +21,9 @@ func WriteToStdinAndZeroizeInput(cmd *exec.Cmd, input []byte) error {
 			_ = stdin.Close() // error ignored; if stdin could be accessed, it can probably be closed
 		}(stdin)
 		_, _ = stdin.Write(input)
-		security.ZeroizeBytes(input)
+		if zeroizeInput {
+			security.ZeroizeBytes(input)
+		}
 	}()
 	return nil
 }

front/input_utils.go

@@ -16,6 +16,15 @@ func Input(prompt string) string {
 	return strings.TrimRight(userInput, "\n\r ") // remove trailing newlines, carriage returns, and spaces
 }
 
+// Input prompts the user for input and
+// returns the input as a rune.
+func InputRune(prompt string) rune {
+	fmt.Print(prompt + " ")
+	reader := bufio.NewReader(os.Stdin)
+	userInput, _, _ := reader.ReadRune()
+	return userInput
+}
+
 // InputBinary prompts the user with a yes/no
 // question and returns the response as a boolean.
 func InputBinary(prompt string) bool {

front/input_wrappers.go

@@ -3,6 +3,7 @@ package front
 import (
 	"fmt"
 	"os"
+	"slices"
 
 	"golang.org/x/term"
 )
@@ -16,6 +17,22 @@ func InputMenuGen(prompt string, options []string) int {
 	return InputInt("\n"+prompt, 1, len(options))
 }
 
+// InputMenuGenWithRuneInputs prompts the user with a menu
+// and returns the user's choice as a rune.
+// Ensure runeInputs contains only unique runes and matches the
+// length of options.
+func InputMenuGenWithRuneInputs(prompt string, options []string, runeInputs []rune) rune {
+	for i, option := range options {
+		fmt.Printf("%c. %s\n", runeInputs[i], option)
+	}
+	for {
+		userInput := InputRune("\n" + prompt)
+		if slices.Contains(runeInputs, userInput) {
+			return userInput
+		}
+	}
+}
+
 // InputSecret prompts the user for input and returns the
 // input as a byte array, hiding the input from the terminal.
 func InputSecret(prompt string) []byte {

go.mod

@@ -1,7 +1,7 @@
 module github.com/rwinkhart/go-boilerplate
 
-go 1.25.7
+go 1.26.3
 
-require golang.org/x/term v0.40.0
+require golang.org/x/term v0.43.0
 
-require golang.org/x/sys v0.41.0 // indirect
+require golang.org/x/sys v0.45.0 // indirect

go.sum

@@ -1,4 +1,4 @@
-golang.org/x/sys v0.41.0 h1:Ivj+2Cp/ylzLiEU89QhWblYnOE9zerudt9Ftecq2C6k=
-golang.org/x/sys v0.41.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
-golang.org/x/term v0.40.0 h1:36e4zGLqU4yhjlmxEaagx2KuYbJq3EwY8K943ZsHcvg=
-golang.org/x/term v0.40.0/go.mod h1:w2P8uVp06p2iyKKuvXIm7N/y0UCRt3UfJTfZ7oOpglM=
+golang.org/x/sys v0.45.0 h1:dO4czNzziLiiXplLQgBCEpCvXQ3dnkn0SdaZSYdQ+FY=
+golang.org/x/sys v0.45.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
+golang.org/x/term v0.43.0 h1:S4RLU2sB31O/NCl+zFN9Aru9A/Cq2aqKpTZJ6B+DwT4=
+golang.org/x/term v0.43.0/go.mod h1:lrhlHNdQJHO+1qVYiHfFKVuVioJIheAc3fBSMFYEIsk=