Migrate to modules, refactor Makefile and use Travis for CI

[govpp.git] / cmd / binapi-generator / main.go

diff --git a/cmd/binapi-generator/main.go b/cmd/binapi-generator/main.go
index d46001d..7a43875 100644 (file)
--- a/cmd/binapi-generator/main.go
+++ b/cmd/binapi-generator/main.go
@@ -27,6 +27,8 @@ import (
 
        "github.com/bennyscetbun/jsongo"
        "github.com/sirupsen/logrus"
+
+       "git.fd.io/govpp.git/version"
 )
 
 var (
@@ -40,16 +42,40 @@ var (
        includeBinapiNames = flag.Bool("include-binapi-names", false, "Include binary API names in struct tag.")
 
        continueOnError = flag.Bool("continue-onerror", false, "Continue with next file on error.")
+       debugMode       = flag.Bool("debug", os.Getenv("GOVPP_DEBUG") != "", "Enable debug mode.")
 
-       debug = flag.Bool("debug", debugMode, "Enable debug mode.")
+       printVersion = flag.Bool("version", false, "Prints current version and exits.")
 )
 
-var debugMode = os.Getenv("DEBUG_BINAPI_GENERATOR") != ""
-
 func main() {
        flag.Parse()
-       if *debug {
+
+       if flag.NArg() > 1 {
+               flag.Usage()
+               os.Exit(1)
+       }
+
+       if flag.NArg() > 0 {
+               switch cmd := flag.Arg(0); cmd {
+               case "version":
+                       fmt.Fprintln(os.Stdout, version.Verbose())
+                       os.Exit(0)
+
+               default:
+                       fmt.Fprintf(os.Stderr, "unknown command: %s\n", cmd)
+                       flag.Usage()
+                       os.Exit(2)
+               }
+       }
+
+       if *printVersion {
+               fmt.Fprintln(os.Stdout, version.Info())
+               os.Exit(0)
+       }
+
+       if *debugMode {
                logrus.SetLevel(logrus.DebugLevel)
+               logrus.Info("debug mode enabled")
        }
 
        if err := run(*theInputFile, *theInputDir, *theOutputDir, *continueOnError); err != nil {
@@ -185,7 +211,7 @@ func generateFromFile(inputFile, outputDir string) error {
 }
 
 func logf(f string, v ...interface{}) {
-       if *debug {
+       if *debugMode {
                logrus.Debugf(f, v...)
        }
 }