Consolidate TUI debug logging to single dr-tui-debug.log file

.gitignore

@@ -40,4 +40,4 @@ tmp
 coverage.txt
 
 # Tea
-tea-debug.log
+dr-tui-debug.log

cmd/dotenv/cmd.go

@@ -9,7 +9,6 @@
 package dotenv
 
 import (
-	"fmt"
 	"os"
 	"path/filepath"
 	"strings"
@@ -44,12 +43,12 @@ var EditCmd = &cobra.Command{
 	Short: "Edit .env file using built-in editor",
 	RunE: func(cmd *cobra.Command, _ []string) error {
 		if viper.GetBool("debug") {
-			f, err := tea.LogToFile("tea-debug.log", "debug")
+			cleanup, err := tui.SetupDebugLogging()
 			if err != nil {
-				fmt.Println("fatal:", err)
-				os.Exit(1)
+				return err
 			}
-			defer f.Close()
+
+			defer cleanup()
 		}
 
 		cwd, err := os.Getwd()
@@ -87,12 +86,12 @@ var SetupCmd = &cobra.Command{
 	Short: "Edit .env file using setup wizard",
 	RunE: func(cmd *cobra.Command, _ []string) error {
 		if viper.GetBool("debug") {
-			f, err := tea.LogToFile("tea-debug.log", "debug")
+			cleanup, err := tui.SetupDebugLogging()
 			if err != nil {
-				fmt.Println("fatal:", err)
-				os.Exit(1)
+				return err
 			}
-			defer f.Close()
+
+			defer cleanup()
 		}
 
 		cwd, err := os.Getwd()

cmd/templates/setup/cmd.go

@@ -10,8 +10,6 @@ package setup
 
 import (
 	"context"
-	"fmt"
-	"os"
 
 	tea "github.com/charmbracelet/bubbletea"
 	"github.com/datarobot/cli/tui"
@@ -37,12 +35,12 @@ the template configuration process step by step.`,
 // RunTea starts the template setup TUI
 func RunTea(ctx context.Context) error {
 	if viper.GetBool("debug") {
-		f, err := tea.LogToFile("tea-debug.log", "debug")
+		cleanup, err := tui.SetupDebugLogging()
 		if err != nil {
-			fmt.Println("fatal:", err)
-			os.Exit(1)
+			return err
 		}
-		defer f.Close()
+
+		defer cleanup()
 	}
 
 	m := NewModel()

tui/logging.go

@@ -0,0 +1,32 @@
+// Copyright 2025 DataRobot, Inc. and its affiliates.
+// All rights reserved.
+// DataRobot, Inc. Confidential.
+// This is unpublished proprietary source code of DataRobot, Inc.
+// and its affiliates.
+// The copyright notice above does not evidence any actual or intended
+// publication of such source code.
+
+package tui
+
+import (
+	"fmt"
+	"os"
+
+	tea "github.com/charmbracelet/bubbletea"
+)
+
+// DebugLogFile is the filename for TUI debug logs
+const DebugLogFile = "dr-tui-debug.log"
+
+// SetupDebugLogging configures debug logging for the TUI if debug mode is enabled.
+// It should be called at the start of TUI programs when debug logging is needed.
+// Returns a cleanup function that should be deferred to close the log file.
+func SetupDebugLogging() (cleanup func(), err error) {
+	f, err := tea.LogToFile(DebugLogFile, "debug")
+	if err != nil {
+		fmt.Println("fatal:", err)
+		os.Exit(1)
+	}
+
+	return func() { f.Close() }, nil
+}