Fix build and versioning (borrowed from yarn)

1 files changed, 65 insertions, 0 deletions

diff --git a/cmd/tube/main.go b/cmd/tube/main.go
new file mode 100644
index 0000000..cc3bfd2
--- /dev/null
+++ b/cmd/tube/main.go
@@ -0,0 +1,65 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	log "github.com/sirupsen/logrus"
+	flag "github.com/spf13/pflag"
+
+	"git.mills.io/prologic/tube"
+	"git.mills.io/prologic/tube/app"
+)
+
+var (
+	debug   bool
+	version bool
+	config  string
+)
+
+func init() {
+	flag.Usage = func() {
+		fmt.Fprintf(os.Stderr, "Usage: %s [options] [file]\n", os.Args[0])
+		flag.PrintDefaults()
+	}
+
+	flag.BoolVarP(&version, "version", "v", false, "display version information")
+	flag.BoolVarP(&debug, "debug", "d", false, "enable debug logging")
+	flag.StringVarP(&config, "config", "c", "config.json", "path to configuration file")
+}
+
+func main() {
+	flag.Parse()
+
+	if debug {
+		log.SetLevel(log.DebugLevel)
+	} else {
+		log.SetLevel(log.InfoLevel)
+	}
+
+	if version {
+		fmt.Printf("tube version %s", tube.FullVersion())
+		os.Exit(0)
+	}
+
+	cfg := app.DefaultConfig()
+	log.Infof("Reading configuration from %s", config)
+	err := cfg.ReadFile(config)
+	if err != nil {
+		if flag.Lookup("config").Changed {
+			log.Fatal(err)
+		}
+		log.Infof("Reading %s failed. Starting with builtin defaults.", config)
+	}
+	// I'd like to add something like this here: log.Debug("Active config: %s", cfg.toJson())
+	a, err := app.NewApp(cfg)
+	if err != nil {
+		log.Fatal(err)
+	}
+	addr := fmt.Sprintf("%s:%d", cfg.Server.Host, cfg.Server.Port)
+	log.Printf("Local server: http://%s", addr)
+	err = a.Run()
+	if err != nil {
+		log.Fatal(err)
+	}
+}