feat: Add non-interactive mode (#18)

cmd/root.go

@@ -15,11 +15,15 @@ import (
 	"github.com/sst/opencode/internal/app"
 	"github.com/sst/opencode/internal/config"
 	"github.com/sst/opencode/internal/db"
+	"github.com/sst/opencode/internal/format"
 	"github.com/sst/opencode/internal/llm/agent"
 	"github.com/sst/opencode/internal/logging"
 	"github.com/sst/opencode/internal/lsp/discovery"
+	"github.com/sst/opencode/internal/message"
+	"github.com/sst/opencode/internal/permission"
 	"github.com/sst/opencode/internal/pubsub"
 	"github.com/sst/opencode/internal/tui"
+	"github.com/sst/opencode/internal/tui/components/spinner"
 	"github.com/sst/opencode/internal/version"
 )
 
@@ -88,6 +92,19 @@ to assist developers in writing, debugging, and understanding code directly from
 			return err
 		}
 
+		// Check if we're in non-interactive mode
+		prompt, _ := cmd.Flags().GetString("prompt")
+		if prompt != "" {
+			outputFormatStr, _ := cmd.Flags().GetString("output-format")
+			outputFormat := format.OutputFormat(outputFormatStr)
+			if !outputFormat.IsValid() {
+				return fmt.Errorf("invalid output format: %s", outputFormatStr)
+			}
+			
+			quiet, _ := cmd.Flags().GetBool("quiet")
+			return handleNonInteractiveMode(cmd.Context(), prompt, outputFormat, quiet)
+		}
+
 		// Run LSP auto-discovery
 		if err := discovery.IntegrateLSPServers(cwd); err != nil {
 			slog.Warn("Failed to auto-discover LSP servers", "error", err)
@@ -205,6 +222,97 @@ func initMCPTools(ctx context.Context, app *app.App) {
 	}()
 }
 
+// handleNonInteractiveMode processes a single prompt in non-interactive mode
+func handleNonInteractiveMode(ctx context.Context, prompt string, outputFormat format.OutputFormat, quiet bool) error {
+	slog.Info("Running in non-interactive mode", "prompt", prompt, "format", outputFormat, "quiet", quiet)
+	
+	// Start spinner if not in quiet mode
+	var s *spinner.Spinner
+	if !quiet {
+		s = spinner.NewSpinner("Thinking...")
+		s.Start()
+		defer s.Stop()
+	}
+	
+	// Connect DB, this will also run migrations
+	conn, err := db.Connect()
+	if err != nil {
+		return err
+	}
+	
+	// Create a context with cancellation
+	ctx, cancel := context.WithCancel(ctx)
+	defer cancel()
+	
+	// Create the app
+	app, err := app.New(ctx, conn)
+	if err != nil {
+		slog.Error("Failed to create app", "error", err)
+		return err
+	}
+	
+	// Auto-approve all permissions for non-interactive mode
+	permission.AutoApproveSession(ctx, "non-interactive")
+	
+	// Create a new session for this prompt
+	session, err := app.Sessions.Create(ctx, "Non-interactive prompt")
+	if err != nil {
+		return fmt.Errorf("failed to create session: %w", err)
+	}
+	
+	// Set the session as current
+	app.CurrentSession = &session
+	
+	// Create the user message
+	_, err = app.Messages.Create(ctx, session.ID, message.CreateMessageParams{
+		Role:  message.User,
+		Parts: []message.ContentPart{message.TextContent{Text: prompt}},
+	})
+	if err != nil {
+		return fmt.Errorf("failed to create message: %w", err)
+	}
+	
+	// Run the agent to get a response
+	eventCh, err := app.PrimaryAgent.Run(ctx, session.ID, prompt)
+	if err != nil {
+		return fmt.Errorf("failed to run agent: %w", err)
+	}
+	
+	// Wait for the response
+	var response message.Message
+	for event := range eventCh {
+		if event.Err() != nil {
+			return fmt.Errorf("agent error: %w", event.Err())
+		}
+		response = event.Response()
+	}
+	
+	// Get the text content from the response
+	content := ""
+	if textContent := response.Content(); textContent != nil {
+		content = textContent.Text
+	}
+	
+	// Format the output according to the specified format
+	formattedOutput, err := format.FormatOutput(content, outputFormat)
+	if err != nil {
+		return fmt.Errorf("failed to format output: %w", err)
+	}
+	
+	// Stop spinner before printing output
+	if !quiet && s != nil {
+		s.Stop()
+	}
+	
+	// Print the formatted output to stdout
+	fmt.Println(formattedOutput)
+	
+	// Shutdown the app
+	app.Shutdown()
+	
+	return nil
+}
+
 func setupSubscriber[T any](
 	ctx context.Context,
 	wg *sync.WaitGroup,
@@ -296,4 +404,7 @@ func init() {
 	rootCmd.Flags().BoolP("version", "v", false, "Version")
 	rootCmd.Flags().BoolP("debug", "d", false, "Debug")
 	rootCmd.Flags().StringP("cwd", "c", "", "Current working directory")
+	rootCmd.Flags().StringP("prompt", "p", "", "Run a single prompt in non-interactive mode")
+	rootCmd.Flags().StringP("output-format", "f", "text", "Output format for non-interactive mode (text, json)")
+	rootCmd.Flags().BoolP("quiet", "q", false, "Hide spinner in non-interactive mode")
 }