10666: Added version number to go sdk and go tools & services

[arvados.git] / services / arv-git-httpd / main.go

diff --git a/services/arv-git-httpd/main.go b/services/arv-git-httpd/main.go
index 79a3eb3f7b85de9667c04fe1b24f2a5217db5772..2750ab9eaf0ab51b8517deba914f8726592ce674 100644 (file)
--- a/services/arv-git-httpd/main.go
+++ b/services/arv-git-httpd/main.go
@@ -7,12 +7,14 @@ package main
 import (
        "encoding/json"
        "flag"
+       "fmt"
        "log"
        "os"
        "regexp"
 
        "git.curoverse.com/arvados.git/sdk/go/arvados"
        "git.curoverse.com/arvados.git/sdk/go/config"
+       arvadosVersion "git.curoverse.com/arvados.git/sdk/go/version"
        "github.com/coreos/go-systemd/daemon"
 )
 
@@ -50,6 +52,7 @@ func main() {
 
        cfgPath := flag.String("config", defaultCfgPath, "Configuration file `path`.")
        dumpConfig := flag.Bool("dump-config", false, "write current configuration to stdout and exit (useful for migrating from command line flags to config file)")
+       getVersion := flag.Bool("version", false, "print version information and exit.")
 
        flag.StringVar(&theConfig.ManagementToken, "management-token", theConfig.ManagementToken,
                "Authorization token to be included in all health check requests.")
@@ -57,6 +60,12 @@ func main() {
        flag.Usage = usage
        flag.Parse()
 
+       // Print version information if requested
+       if *getVersion {
+               fmt.Printf("Version: %s\n", arvadosVersion.GetVersion())
+               os.Exit(0)
+       }
+
        err := config.LoadFile(theConfig, *cfgPath)
        if err != nil {
                h := os.Getenv("ARVADOS_API_HOST")
@@ -84,6 +93,7 @@ func main() {
        if _, err := daemon.SdNotify(false, "READY=1"); err != nil {
                log.Printf("Error notifying init daemon: %v", err)
        }
+       log.Printf("arv-git-httpd %q started", arvadosVersion.GetVersion())
        log.Println("Listening at", srv.Addr)
        log.Println("Repository root", theConfig.RepoRoot)
        if err := srv.Wait(); err != nil {