Merge pull request #807 from rqlite/cli-version

rqlite CLI provides version information

CHANGELOG.md

@@ -12,6 +12,7 @@ The data API and cluster-management API remain unchanged however, so client code
 ### New features
 - [PR #796](https://github.com/rqlite/rqlite/pull/796): `nodes/` API reports real-time status of other nodes in cluster. Fixes [issue #768](https://github.com/rqlite/rqlite/issues/768).
 - [PR #802](https://github.com/rqlite/rqlite/pull/802): Add `.sysdump` command to rqlite CLI.
+- [PR #807](https://github.com/rqlite/rqlite/pull/807): rqlite CLI displays build information. Fixes [issue #768](https://github.com/rqlite/rqlite/issues/806).
 
 ### Implementation changes and bug fixes
  - [PR #792](https://github.com/rqlite/rqlite/pull/792): Fetch leader HTTP API addresses on demand.

cmd/rqlite/main.go

@@ -17,6 +17,7 @@ import (
 
 	"github.com/Bowery/prompt"
 	"github.com/mkideal/cli"
+	"github.com/rqlite/rqlite/cmd"
 )
 
 const maxRedirect = 21
@@ -30,6 +31,7 @@ type argT struct {
 	Insecure    bool   `cli:"i,insecure" usage:"do not verify rqlited HTTPS certificate" dft:"false"`
 	CACert      string `cli:"c,ca-cert" usage:"path to trusted X.509 root CA certificate"`
 	Credentials string `cli:"u,user" usage:"set basic auth credentials in form username:password"`
+	Version     bool   `cli:"v,version" usage:"display CLI version"`
 }
 
 var cliHelp = []string{
@@ -57,6 +59,12 @@ func main() {
 			return nil
 		}
 
+		if argv.Version {
+			ctx.String("Version %s, commmit %s, branch %s, built on %s\n", cmd.Version,
+				cmd.Commit, cmd.Branch, cmd.Buildtime)
+			return nil
+		}
+
 		client, err := getHTTPClient(argv)
 		if err != nil {
 			ctx.String("%s %v\n", ctx.Color().Red("ERR!"), err)
@@ -70,7 +78,8 @@ func main() {
 		}
 
 		fmt.Println("Welcome to the rqlite CLI. Enter \".help\" for usage hints.")
-		fmt.Printf("Connected to version %s\n", version)
+		fmt.Printf("Version %s, commit %s, branch %s\n", cmd.Version, cmd.Commit, cmd.Branch)
+		fmt.Printf("Connected to rqlited version %s\n", version)
 
 		timer := false
 		prefix := fmt.Sprintf("%s:%d>", argv.Host, argv.Port)

cmd/rqlited/main.go

@@ -19,6 +19,7 @@ import (
 
 	"github.com/rqlite/rqlite/auth"
 	"github.com/rqlite/rqlite/cluster"
+	"github.com/rqlite/rqlite/cmd"
 	"github.com/rqlite/rqlite/disco"
 	httpd "github.com/rqlite/rqlite/http"
 	"github.com/rqlite/rqlite/store"
@@ -36,15 +37,6 @@ const logo = `
          |_|
 `
 
-// These variables are populated via the Go linker.
-var (
-	version   = "6"
-	commit    = "unknown"
-	branch    = "unknown"
-	buildtime = "unknown"
-	features  = []string{}
-)
-
 var httpAddr string
 var httpAdv string
 var joinSrcIP string
@@ -148,7 +140,7 @@ func main() {
 
 	if showVersion {
 		fmt.Printf("%s %s %s %s %s (commit %s, branch %s)\n",
-			name, version, runtime.GOOS, runtime.GOARCH, runtime.Version(), commit, branch)
+			name, cmd.Version, runtime.GOOS, runtime.GOARCH, runtime.Version(), cmd.Commit, cmd.Branch)
 		os.Exit(0)
 	}
 
@@ -173,7 +165,7 @@ func main() {
 	log.SetFlags(log.LstdFlags)
 	log.SetOutput(os.Stderr)
 	log.SetPrefix(fmt.Sprintf("[%s] ", name))
-	log.Printf("%s starting, version %s, commit %s, branch %s", name, version, commit, branch)
+	log.Printf("%s starting, version %s, commit %s, branch %s", name, cmd.Version, cmd.Commit, cmd.Branch)
 	log.Printf("%s, target architecture is %s, operating system target is %s", runtime.Version(), runtime.GOARCH, runtime.GOOS)
 	log.Printf("launch command: %s", strings.Join(os.Args, " "))
 
@@ -404,10 +396,10 @@ func startHTTPService(str *store.Store, cltr *cluster.Service) error {
 	s.Expvar = expvar
 	s.Pprof = pprofEnabled
 	s.BuildInfo = map[string]interface{}{
-		"commit":     commit,
-		"branch":     branch,
-		"version":    version,
-		"build_time": buildtime,
+		"commit":     cmd.Commit,
+		"branch":     cmd.Branch,
+		"version":    cmd.Version,
+		"build_time": cmd.Buildtime,
 	}
 	return s.Start()
 }

cmd/version.go

@@ -0,0 +1,16 @@
+package cmd
+
+// These variables are populated via the Go linker.
+var (
+	// rqlite version
+	Version = "6"
+
+	// Commit this code was built at.
+	Commit = "unknown"
+
+	// Branch the code was built from.
+	Branch = "unknown"
+
+	// Timestamp of build.
+	Buildtime = "unknown"
+)

package.sh

@@ -37,7 +37,9 @@ cd $tmp_build/src/github.com/rqlite
 git clone $REPO_URL
 cd rqlite
 go get -d ./...
-go install -ldflags="-X main.version=$VERSION -X main.branch=$branch -X main.commit=$commit -X main.buildtime=$buildtime" ./...
+
+LINKER_PKG_PATH=github.com/rqlite/rqlite/cmd
+go install -ldflags="-X $LINKER_PKG_PATH.Version=$VERSION -X $LINKER_PKG_PATH.Branch=$branch -X $LINKER_PKG_PATH.Commit=$commit -X $LINKER_PKG_PATH.Buildtime=$buildtime" ./...
 
 release=`echo rqlite-$VERSION-$kernel-$machine | tr '[:upper:]' '[:lower:]'`
 release_pkg=${release}.tar.gz