feat: allow piping from stdin

packages/tui/cmd/opencode/main.go

@@ -3,6 +3,7 @@ package main
 import (
 	"context"
 	"encoding/json"
+	"io"
 	"log/slog"
 	"os"
 	"path/filepath"
@@ -56,11 +57,6 @@ func main() {
 		option.WithBaseURL(url),
 	)
 
-	if err != nil {
-		slog.Error("Failed to create client", "error", err)
-		os.Exit(1)
-	}
-
 	// Create main context for the application
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
@@ -70,8 +66,25 @@ func main() {
 		panic(err)
 	}
 
+	stat, err := os.Stdin.Stat()
+	if err != nil {
+		slog.Error("Failed to stat stdin", "error", err)
+		os.Exit(1)
+	}
+
+	// Check if there's data piped to stdin
+	var stdinContent string
+	if (stat.Mode() & os.ModeCharDevice) == 0 {
+		stdin, err := io.ReadAll(os.Stdin)
+		if err != nil {
+			slog.Error("Failed to read stdin", "error", err)
+			os.Exit(1)
+		}
+		stdinContent = strings.TrimSpace(string(stdin))
+	}
+
 	program := tea.NewProgram(
-		tui.NewModel(app_),
+		tui.NewModel(app_, stdinContent),
 		tea.WithAltScreen(),
 		tea.WithKeyboardEnhancements(),
 		tea.WithMouseCellMotion(),

packages/tui/internal/components/status/status.go

@@ -95,7 +95,7 @@ func (m statusComponent) View() string {
 		Render(m.app.Info.Path.Cwd)
 
 	sessionInfo := ""
-	if m.app.Session.ID != "" {
+	if m.app.Session.ID != "" && m.app.Model != nil {
 		tokens := float64(0)
 		cost := float64(0)
 		contextWindow := m.app.Model.Limit.Context

packages/tui/internal/tui/tui.go

@@ -66,6 +66,7 @@ type appModel struct {
 	fileViewerStart      int
 	fileViewerEnd        int
 	fileViewerHit        bool
+	stdinContent         string
 }
 
 func (a appModel) Init() tea.Cmd {
@@ -89,6 +90,16 @@ func (a appModel) Init() tea.Cmd {
 		return dialog.ShowInitDialogMsg{Show: shouldShow}
 	})
 
+	// If we have stdin content, send it as the first message
+	if a.stdinContent != "" {
+		cmds = append(cmds, func() tea.Msg {
+			return app.SendMsg{
+				Text:        a.stdinContent,
+				Attachments: []opencode.FilePartParam{},
+			}
+		})
+	}
+
 	return tea.Batch(cmds...)
 }
 
@@ -974,7 +985,7 @@ func (a appModel) executeCommand(command commands.Command) (tea.Model, tea.Cmd)
 	return a, tea.Batch(cmds...)
 }
 
-func NewModel(app *app.App) tea.Model {
+func NewModel(app *app.App, stdinContent string) tea.Model {
 	commandProvider := completions.NewCommandCompletionProvider(app)
 	fileProvider := completions.NewFileAndFolderContextGroup(app)
 
@@ -1004,6 +1015,7 @@ func NewModel(app *app.App) tea.Model {
 		interruptKeyState:    InterruptKeyIdle,
 		fileViewer:           fileviewer.New(app),
 		messagesRight:        app.State.MessagesRight,
+		stdinContent:         stdinContent,
 	}
 
 	return model