Fix new tty prompt (#897)

Fix #827

---------

Co-authored-by: silverwind <silverwind@noreply.gitea.com>
Reviewed-on: https://gitea.com/gitea/tea/pulls/897
Reviewed-by: silverwind <silverwind@noreply.gitea.com>

modules/context/context.go

@@ -18,6 +18,7 @@ import (
 	"github.com/charmbracelet/huh"
 	gogit "github.com/go-git/go-git/v5"
 	"github.com/urfave/cli/v3"
+	"golang.org/x/term"
 )
 
 var errNotAGiteaRepo = errors.New("No Gitea login found. You might want to specify --repo (and --login) to work outside of a repository")
@@ -48,6 +49,10 @@ func (ctx *TeaContext) IsInteractiveMode() bool {
 	return ctx.Command.NumFlags() == 0
 }
 
+func shouldPromptFallbackLogin(login *config.Login, canPrompt bool) bool {
+	return login != nil && !login.Default && canPrompt
+}
+
 // InitCommand resolves the application context, and returns the active login, and if
 // available the repo slug. It does this by reading the config file for logins, parsing
 // the remotes of the .git repo specified in repoFlag or $PWD, and using overrides from
@@ -131,7 +136,8 @@ and then run your command again.`)
 		}
 
 		// Only prompt for confirmation if the fallback login is not explicitly set as default
-		if !c.Login.Default {
+		canPrompt := term.IsTerminal(int(os.Stdin.Fd())) && term.IsTerminal(int(os.Stdout.Fd()))
+		if shouldPromptFallbackLogin(c.Login, canPrompt) {
 			fallback := false
 			if err := huh.NewConfirm().
 				Title(fmt.Sprintf("NOTE: no gitea login detected, whether falling back to login '%s'?", c.Login.Name)).
@@ -143,6 +149,8 @@ and then run your command again.`)
 			if !fallback {
 				os.Exit(1)
 			}
+		} else if !c.Login.Default {
+			fmt.Fprintf(os.Stderr, "NOTE: no gitea login detected, falling back to login '%s' in non-interactive mode.\n", c.Login.Name)
 		}
 	}
 

modules/context/context_prompt_test.go

@@ -0,0 +1,52 @@
+// Copyright 2026 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package context
+
+import (
+	"testing"
+
+	"code.gitea.io/tea/modules/config"
+)
+
+func TestShouldPromptFallbackLogin(t *testing.T) {
+	tests := []struct {
+		name      string
+		login     *config.Login
+		canPrompt bool
+		expected  bool
+	}{
+		{
+			name:      "no login",
+			login:     nil,
+			canPrompt: true,
+			expected:  false,
+		},
+		{
+			name:      "default login",
+			login:     &config.Login{Default: true},
+			canPrompt: true,
+			expected:  false,
+		},
+		{
+			name:      "non-default no prompt",
+			login:     &config.Login{Default: false},
+			canPrompt: false,
+			expected:  false,
+		},
+		{
+			name:      "non-default prompt",
+			login:     &config.Login{Default: false},
+			canPrompt: true,
+			expected:  true,
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			if got := shouldPromptFallbackLogin(test.login, test.canPrompt); got != test.expected {
+				t.Fatalf("expected %v, got %v", test.expected, got)
+			}
+		})
+	}
+}