Initial commit

cmd/pekoe/main.go

@@ -0,0 +1,79 @@
+// @tag entrypoint
+// @tag config
+package main
+
+import (
+	"flag"
+	"fmt"
+	"os"
+
+	"github.com/eleksir/pekoe/internal/config"
+	"github.com/eleksir/pekoe/internal/logger"
+	"github.com/eleksir/pekoe/internal/pubsub"
+	"github.com/eleksir/pekoe/internal/server"
+)
+
+var version = "unknown"
+
+func main() {
+	// Parse command-line flags
+	configPath := flag.String("config", "", "Path to configuration file")
+	showVersion := flag.Bool("version", false, "Show version information")
+	flag.Parse()
+
+	if *showVersion {
+		fmt.Printf("Pekoe Redis Pub/Sub Server v%s\n", version)
+		fmt.Println("Built with Go, no external dependencies")
+		return
+	}
+
+	// Resolve config file path
+	path, err := resolveConfigPath(*configPath)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
+		os.Exit(1)
+	}
+
+	// Load configuration
+	cfg, err := config.Load(path)
+	if err != nil {
+		logger.Fatal("Failed to load config from %s: %v", path, err)
+	}
+
+	logger.Info("Configuration loaded from %s: %s", path, cfg.Addr())
+
+	// Create pubsub hub - the core of our pub/sub system
+	hub := pubsub.NewHub()
+	logger.Info("PubSub hub initialized")
+
+	// Create and start the server
+	srv := server.New(cfg, hub)
+	if err := srv.Run(); err != nil {
+		logger.Fatal("Server error: %v", err)
+	}
+}
+
+// resolveConfigPath determines which config file to use.
+// If --config is given, that path is used directly.
+// Otherwise, platform-specific default paths are tried in order.
+func resolveConfigPath(explicit string) (string, error) {
+	if explicit != "" {
+		if _, err := os.Stat(explicit); err != nil {
+			return "", fmt.Errorf("config file not found: %s", explicit)
+		}
+		return explicit, nil
+	}
+
+	paths := config.DefaultConfigPaths()
+	if len(paths) == 0 {
+		return "", fmt.Errorf("no config file found, use --config to specify a config file")
+	}
+
+	for _, p := range paths {
+		if _, err := os.Stat(p); err == nil {
+			return p, nil
+		}
+	}
+
+	return "", fmt.Errorf("no config file found, tried: %v", paths)
+}