Don't pass stdin/stdout to bubbletea

pkg/output/tui/io.go

@@ -0,0 +1,35 @@
+/*
+ Copyright 2024 The Knative Authors
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+package tui
+
+import (
+	"os"
+
+	tea "github.com/charmbracelet/bubbletea"
+	"knative.dev/client-pkg/pkg/output"
+)
+
+func ioProgramOptions(io output.InputOutput) []tea.ProgramOption {
+	opts := make([]tea.ProgramOption, 0, 2)
+	if io.InOrStdin() != nil && io.InOrStdin() != os.Stdin {
+		opts = append(opts, tea.WithInput(safeguardBubbletea964(io.InOrStdin())))
+	}
+	if io.OutOrStdout() != nil && io.OutOrStdout() != os.Stdout {
+		opts = append(opts, tea.WithOutput(io.OutOrStdout()))
+	}
+	return opts
+}

pkg/output/tui/progress.go

@@ -241,10 +241,7 @@ func (b *BubbleProgress) tickSpeed() tea.Cmd {
 
 func (b *BubbleProgress) start() {
 	b.prog = progress.New(progress.WithDefaultGradient())
-	b.tea = tea.NewProgram(b,
-		tea.WithInput(safeguardBubbletea964(b.InOrStdin())),
-		tea.WithOutput(b.OutOrStdout()),
-	)
+	b.tea = tea.NewProgram(b, ioProgramOptions(b.InputOutput)...)
 	b.quitChan = make(chan struct{})
 	go func() {
 		t := b.tea

pkg/output/tui/spinner.go

@@ -78,10 +78,7 @@ func (b *BubbleSpinner) start() {
 		spinner.WithSpinner(spinner.Meter),
 		spinner.WithStyle(spinnerStyle()),
 	)
-	b.tea = tea.NewProgram(b,
-		tea.WithInput(safeguardBubbletea964(b.InOrStdin())),
-		tea.WithOutput(b.OutOrStdout()),
-	)
+	b.tea = tea.NewProgram(b, ioProgramOptions(b.InputOutput)...)
 	b.quitChan = make(chan struct{})
 	go func() {
 		t := b.tea