feat: add --config flag and SL_CONFIG env var for config path

AGENTS.md

@@ -78,7 +78,7 @@ import (
 
     "gopkg.in/yaml.v3"
 
-    "github.com/fvigneault/smart-llama/internal/config"
+    "github.com/smartfrog/smart-llama/internal/config"
 )
 ```
 

cmd/smart-llama/main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"flag"
 	"fmt"
 	"log"
 	"log/slog"
@@ -9,16 +10,31 @@ import (
 	"os/signal"
 	"syscall"
 
-	"github.com/fvigneault/smart-llama/internal/config"
-	"github.com/fvigneault/smart-llama/internal/process"
-	"github.com/fvigneault/smart-llama/internal/proxy"
-	"github.com/fvigneault/smart-llama/internal/server"
+	"github.com/smartfrog/smart-llama/internal/config"
+	"github.com/smartfrog/smart-llama/internal/process"
+	"github.com/smartfrog/smart-llama/internal/proxy"
+	"github.com/smartfrog/smart-llama/internal/server"
 )
 
+const defaultConfigPath = "config.yaml"
+
 type App struct {
-	config *config.Config
-	log    *slog.Logger
-	models map[string]*config.ModelConfig
+	configPath string
+	config     *config.Config
+	log        *slog.Logger
+	models     map[string]*config.ModelConfig
+}
+
+// resolveConfigPath returns the config path based on priority:
+// flagValue > envValue > defaultConfigPath
+func resolveConfigPath(flagValue, envValue string) string {
+	if flagValue != "" {
+		return flagValue
+	}
+	if envValue != "" {
+		return envValue
+	}
+	return defaultConfigPath
 }
 
 func NewApp() *App {
@@ -30,7 +46,7 @@ func NewApp() *App {
 
 func (a *App) loadConfig() error {
 	loader := config.NewLoader()
-	cfg, err := loader.LoadConfig("config.yaml")
+	cfg, err := loader.LoadConfig(a.configPath)
 	if err != nil {
 		return err
 	}
@@ -98,7 +114,12 @@ func (a *App) run() error {
 }
 
 func main() {
+	configFlag := flag.String("config", "", "path to configuration file")
+	flag.Parse()
+
 	app := NewApp()
+	app.configPath = resolveConfigPath(*configFlag, os.Getenv("SL_CONFIG"))
+
 	if err := app.loadConfig(); err != nil {
 		log.Fatal(err)
 	}

cmd/smart-llama/main_test.go

@@ -11,3 +11,37 @@ func TestNewApp(t *testing.T) {
 		t.Fatal("NewApp() returned nil")
 	}
 }
+
+func TestResolveConfigPath(t *testing.T) {
+	t.Run("flag takes priority over env and default", func(t *testing.T) {
+		got := resolveConfigPath("/from/flag", "/from/env")
+		want := "/from/flag"
+		if got != want {
+			t.Errorf("got %q, want %q", got, want)
+		}
+	})
+
+	t.Run("env takes priority over default when no flag", func(t *testing.T) {
+		got := resolveConfigPath("", "/from/env")
+		want := "/from/env"
+		if got != want {
+			t.Errorf("got %q, want %q", got, want)
+		}
+	})
+
+	t.Run("returns default when no flag and no env", func(t *testing.T) {
+		got := resolveConfigPath("", "")
+		want := defaultConfigPath
+		if got != want {
+			t.Errorf("got %q, want %q", got, want)
+		}
+	})
+
+	t.Run("flag with empty env uses flag", func(t *testing.T) {
+		got := resolveConfigPath("/custom/path", "")
+		want := "/custom/path"
+		if got != want {
+			t.Errorf("got %q, want %q", got, want)
+		}
+	})
+}

go.mod

@@ -1,4 +1,4 @@
-module github.com/fvigneault/smart-llama
+module github.com/smartfrog/smart-llama
 
 go 1.25.0
 

internal/process/manager.go

@@ -12,7 +12,7 @@ import (
 	"syscall"
 	"time"
 
-	"github.com/fvigneault/smart-llama/internal/config"
+	"github.com/smartfrog/smart-llama/internal/config"
 )
 
 // Manager manages the llama-server subprocess lifecycle.

internal/process/manager_test.go

@@ -10,7 +10,7 @@ import (
 	"testing"
 	"time"
 
-	"github.com/fvigneault/smart-llama/internal/config"
+	"github.com/smartfrog/smart-llama/internal/config"
 )
 
 func TestNewManager(t *testing.T) {

internal/server/server.go

@@ -7,8 +7,8 @@ import (
 	"net/http"
 	"sync"
 
-	"github.com/fvigneault/smart-llama/internal/config"
-	"github.com/fvigneault/smart-llama/internal/proxy"
+	"github.com/smartfrog/smart-llama/internal/config"
+	"github.com/smartfrog/smart-llama/internal/proxy"
 )
 
 // Server manages the HTTP server.

internal/server/server_test.go

@@ -7,7 +7,7 @@ import (
 	"net/http/httptest"
 	"testing"
 
-	"github.com/fvigneault/smart-llama/internal/config"
+	"github.com/smartfrog/smart-llama/internal/config"
 )
 
 func TestHandleModelsList(t *testing.T) {