cmd: ollama launch pi (#14084)

cmd/config/pi.go

@@ -0,0 +1,237 @@
+package config
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"slices"
+	"strings"
+
+	"github.com/ollama/ollama/api"
+	"github.com/ollama/ollama/envconfig"
+	"github.com/ollama/ollama/types/model"
+)
+
+// Pi implements Runner and Editor for Pi (Pi Coding Agent) integration
+type Pi struct{}
+
+func (p *Pi) String() string { return "Pi" }
+
+func (p *Pi) Run(model string, args []string) error {
+	if _, err := exec.LookPath("pi"); err != nil {
+		return fmt.Errorf("pi is not installed, install with: npm install -g @mariozechner/pi-coding-agent")
+	}
+
+	// Call Edit() to ensure config is up-to-date before launch
+	models := []string{model}
+	if config, err := loadIntegration("pi"); err == nil && len(config.Models) > 0 {
+		models = config.Models
+	}
+	if err := p.Edit(models); err != nil {
+		return fmt.Errorf("setup failed: %w", err)
+	}
+
+	cmd := exec.Command("pi", args...)
+	cmd.Stdin = os.Stdin
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	return cmd.Run()
+}
+
+func (p *Pi) Paths() []string {
+	home, err := os.UserHomeDir()
+	if err != nil {
+		return nil
+	}
+
+	var paths []string
+	modelsPath := filepath.Join(home, ".pi", "agent", "models.json")
+	if _, err := os.Stat(modelsPath); err == nil {
+		paths = append(paths, modelsPath)
+	}
+	settingsPath := filepath.Join(home, ".pi", "agent", "settings.json")
+	if _, err := os.Stat(settingsPath); err == nil {
+		paths = append(paths, settingsPath)
+	}
+	return paths
+}
+
+func (p *Pi) Edit(models []string) error {
+	if len(models) == 0 {
+		return nil
+	}
+
+	home, err := os.UserHomeDir()
+	if err != nil {
+		return err
+	}
+
+	configPath := filepath.Join(home, ".pi", "agent", "models.json")
+	if err := os.MkdirAll(filepath.Dir(configPath), 0o755); err != nil {
+		return err
+	}
+
+	config := make(map[string]any)
+	if data, err := os.ReadFile(configPath); err == nil {
+		_ = json.Unmarshal(data, &config)
+	}
+
+	providers, ok := config["providers"].(map[string]any)
+	if !ok {
+		providers = make(map[string]any)
+	}
+
+	ollama, ok := providers["ollama"].(map[string]any)
+	if !ok {
+		ollama = map[string]any{
+			"baseUrl": envconfig.Host().String() + "/v1",
+			"api":     "openai-completions",
+			"apiKey":  "ollama",
+		}
+	}
+
+	existingModels, ok := ollama["models"].([]any)
+	if !ok {
+		existingModels = make([]any, 0)
+	}
+
+	// Build set of selected models to track which need to be added
+	selectedSet := make(map[string]bool, len(models))
+	for _, m := range models {
+		selectedSet[m] = true
+	}
+
+	// Build new models list:
+	// 1. Keep user-managed models (no _launch marker) - untouched
+	// 2. Keep ollama-managed models (_launch marker) that are still selected
+	// 3. Add new ollama-managed models
+	var newModels []any
+	for _, m := range existingModels {
+		if modelObj, ok := m.(map[string]any); ok {
+			if id, ok := modelObj["id"].(string); ok {
+				// User-managed model (no _launch marker) - always preserve
+				if !isPiOllamaModel(modelObj) {
+					newModels = append(newModels, m)
+				} else if selectedSet[id] {
+					// Ollama-managed and still selected - keep it
+					newModels = append(newModels, m)
+					selectedSet[id] = false
+				}
+			}
+		}
+	}
+
+	// Add newly selected models that weren't already in the list
+	client := api.NewClient(envconfig.Host(), http.DefaultClient)
+	ctx := context.Background()
+	for _, model := range models {
+		if selectedSet[model] {
+			newModels = append(newModels, createConfig(ctx, client, model))
+		}
+	}
+
+	ollama["models"] = newModels
+	providers["ollama"] = ollama
+	config["providers"] = providers
+
+	configData, err := json.MarshalIndent(config, "", "  ")
+	if err != nil {
+		return err
+	}
+	if err := writeWithBackup(configPath, configData); err != nil {
+		return err
+	}
+
+	// Update settings.json with default provider and model
+	settingsPath := filepath.Join(home, ".pi", "agent", "settings.json")
+	settings := make(map[string]any)
+	if data, err := os.ReadFile(settingsPath); err == nil {
+		_ = json.Unmarshal(data, &settings)
+	}
+
+	settings["defaultProvider"] = "ollama"
+	settings["defaultModel"] = models[0]
+
+	settingsData, err := json.MarshalIndent(settings, "", "  ")
+	if err != nil {
+		return err
+	}
+	return writeWithBackup(settingsPath, settingsData)
+}
+
+func (p *Pi) Models() []string {
+	home, err := os.UserHomeDir()
+	if err != nil {
+		return nil
+	}
+
+	configPath := filepath.Join(home, ".pi", "agent", "models.json")
+	config, err := readJSONFile(configPath)
+	if err != nil {
+		return nil
+	}
+
+	providers, _ := config["providers"].(map[string]any)
+	ollama, _ := providers["ollama"].(map[string]any)
+	models, _ := ollama["models"].([]any)
+
+	var result []string
+	for _, m := range models {
+		if modelObj, ok := m.(map[string]any); ok {
+			if id, ok := modelObj["id"].(string); ok {
+				result = append(result, id)
+			}
+		}
+	}
+	slices.Sort(result)
+	return result
+}
+
+// isPiOllamaModel reports whether a model config entry is managed by ollama launch
+func isPiOllamaModel(cfg map[string]any) bool {
+	if v, ok := cfg["_launch"].(bool); ok && v {
+		return true
+	}
+	return false
+}
+
+// createConfig builds Pi model config with capability detection
+func createConfig(ctx context.Context, client *api.Client, modelID string) map[string]any {
+	cfg := map[string]any{
+		"id":      modelID,
+		"_launch": true,
+	}
+
+	resp, err := client.Show(ctx, &api.ShowRequest{Model: modelID})
+	if err != nil {
+		return cfg
+	}
+
+	// Set input types based on vision capability
+	if slices.Contains(resp.Capabilities, model.CapabilityVision) {
+		cfg["input"] = []string{"text", "image"}
+	} else {
+		cfg["input"] = []string{"text"}
+	}
+
+	// Set reasoning based on thinking capability
+	if slices.Contains(resp.Capabilities, model.CapabilityThinking) {
+		cfg["reasoning"] = true
+	}
+
+	// Extract context window from ModelInfo
+	for key, val := range resp.ModelInfo {
+		if strings.HasSuffix(key, ".context_length") {
+			if ctxLen, ok := val.(float64); ok && ctxLen > 0 {
+				cfg["contextWindow"] = int(ctxLen)
+			}
+			break
+		}
+	}
+
+	return cfg
+}