feat: Add support for negative default in confirm prompt, fixes #6103 (…

…#6118)

Co-authored-by: Randy Fay <randy@randyfay.com>

cmd/ddev/cmd/push.go

@@ -50,7 +50,7 @@ func apppush(providerType string, app *ddevapp.DdevApp, skipConfirmation bool, s
 		}
 
 		util.Warning("You're about to push your local %s to your upstream production\nand replace it with your local project's %s.\nThis is normally a very dangerous operation.", message, message)
-		if !util.Confirm("Would you like to continue (not recommended)?") {
+		if !util.ConfirmTo("Would you like to continue (not recommended)?", false) {
 			util.Failed("Push cancelled")
 		}
 	}

pkg/util/prompt.go

@@ -38,13 +38,35 @@ func Prompt(prompt string, defaultValue string) string {
 // Confirm handles the asking and interpreting of a basic yes/no question.
 // If DDEV_NONINTERACTIVE is set, Confirm() returns true. The prompt will be
 // presented at most three times before returning false.
+// Defaults to true if left blank.
 func Confirm(prompt string) bool {
+	return ConfirmTo(prompt, true)
+}
+
+// ConfirmTo handles the asking and interpreting of a basic yes/no question.
+// If DDEV_NONINTERACTIVE is set, Confirm() returns true.
+// If response is blank, the defaultTo value is returned.
+// If response is invalid, the prompt will be presented at most three times
+// before returning false.
+func ConfirmTo(prompt string, defaultTo bool) bool {
 	if len(os.Getenv("DDEV_NONINTERACTIVE")) > 0 {
 		return true
 	}
 
+	var promptOptions string
+	var promptDefaultValue string
+
+	if defaultTo {
+		promptOptions = "Y/n"
+		promptDefaultValue = "yes"
+	} else {
+		promptOptions = "y/N"
+		promptDefaultValue = "no"
+	}
+
 	for i := 0; i < 3; i++ {
-		resp := strings.ToLower(Prompt(fmt.Sprintf("%s [Y/n]", prompt), "yes"))
+		resp := strings.ToLower(Prompt(fmt.Sprintf("%s [%s]", prompt, promptOptions), promptDefaultValue))
+
 		if resp == "yes" || resp == "y" {
 			return true
 		}

pkg/util/utils_test.go

@@ -105,8 +105,8 @@ func TestCaptureOutputToFile(t *testing.T) {
 	assert.Contains(out, "randstring-stderr="+text)
 }
 
-// TestConfirm ensures that the confirmation prompt works as expected.
-func TestConfirm(t *testing.T) {
+// TestConfirmTo ensures that the confirmation prompt works as expected.
+func TestConfirmTo(t *testing.T) {
 	assert := asrt.New(t)
 
 	// Unset the env var, then reset after the test
@@ -117,47 +117,43 @@ func TestConfirm(t *testing.T) {
 		t.Fatal(err.Error())
 	}
 
-	yesses := []string{"YES", "Yes", "yes", "Y", "y"}
-	for _, y := range yesses {
+	// test a given input against a default value
+	testInput := func(input string, defaultTo bool, expected bool) {
 		text := util.RandString(32)
-		scanner := bufio.NewScanner(strings.NewReader(y))
+		scanner := bufio.NewScanner(strings.NewReader(input))
 		util.SetInputScanner(scanner)
 
 		getOutput := util.CaptureStdOut()
-		resp := util.Confirm(text)
-		assert.True(resp)
+		resp := util.ConfirmTo(text, defaultTo)
+		if expected {
+			assert.True(resp)
+		} else {
+			assert.False(resp)
+		}
 		assert.Contains(getOutput(), text)
 	}
 
+	yesses := []string{"YES", "Yes", "yes", "Y", "y"}
+	for _, y := range yesses {
+		testInput(y, true, true)
+		testInput(y, false, true)
+	}
+
 	nos := []string{"NO", "No", "no", "N", "n"}
 	for _, n := range nos {
-		text := util.RandString(32)
-		scanner := bufio.NewScanner(strings.NewReader(n))
-		util.SetInputScanner(scanner)
-
-		getOutput := util.CaptureStdOut()
-		resp := util.Confirm(text)
-		assert.False(resp)
-		assert.Contains(getOutput(), text)
+		testInput(n, true, false)
+		testInput(n, false, false)
 	}
 
 	// Test that junk answers (not yes, no, or <enter>) eventually return a false
-	scanner := bufio.NewScanner(strings.NewReader("a\nb\na\nb\na\nb\na\nb\na\nb\n"))
-	util.SetInputScanner(scanner)
-	getOutput := util.CaptureStdOut()
-	text := util.RandString(32)
-	resp := util.Confirm(text)
-	assert.False(resp)
-	assert.Contains(getOutput(), text)
-
-	// Test that <enter> returns true
-	scanner = bufio.NewScanner(strings.NewReader("\n"))
-	util.SetInputScanner(scanner)
-	getOutput = util.CaptureStdOut()
-	text = util.RandString(32)
-	resp = util.Confirm(text)
-	assert.True(resp)
-	assert.Contains(getOutput(), text)
+	junkText := "a\nb\na\nb\na\nb\na\nb\na\nb\n"
+	testInput(junkText, true, false)
+	testInput(junkText, false, false)
+
+	// Test that <enter> returns the defaultTo value
+	enter := "\n"
+	testInput(enter, true, true)
+	testInput(enter, false, false)
 }
 
 // TestSliceToUniqueSlice tests SliceToUniqueSlice