chore(version): Get the version following how katenary is installed

Makefile

@@ -7,7 +7,8 @@ PREFIX=~/.local
 GOVERSION=1.23
 GO=container
 OUT=katenary
-BLD_CMD=go build -ldflags="-X 'katenary/generator.Version=$(VERSION)'" -o $(OUT)  ./cmd/katenary
+RELEASE=""
+BLD_CMD=go build -ldflags="-X 'katenary/generator.Version=$(RELEASE)$(VERSION)'" -o $(OUT)  ./cmd/katenary
 GOOS=linux
 GOARCH=amd64
 SIGNER=metal3d@gmail.com

cmd/katenary/main.go

@@ -35,7 +35,7 @@ func buildRootCmd() *cobra.Command {
 	}
 	rootCmd.Example = `  katenary convert -c docker-compose.yml -o ./charts`
 
-	rootCmd.Version = generator.Version
+	rootCmd.Version = generator.GetVersion()
 	rootCmd.CompletionOptions.DisableDescriptions = false
 	rootCmd.CompletionOptions.DisableNoDescFlag = false
 
@@ -233,7 +233,7 @@ func generateVersionCommand() *cobra.Command {
 		Use:   "version",
 		Short: "Print the version number of Katenary",
 		Run: func(cmd *cobra.Command, args []string) {
-			println(generator.Version)
+			println(generator.GetVersion())
 		},
 	}
 }

generator/version.go

@@ -1,4 +1,24 @@
 package generator
 
+import (
+	"runtime/debug"
+	"strings"
+)
+
 // Version is the version of katenary. It is set at compile time.
 var Version = "master" // changed at compile time
+
+// GetVersion return the version of katneary. It's important to understand that
+// the version is set at compile time for the github release. But, it the user get
+// katneary using `go install`, the version should be different.
+func GetVersion() string {
+	if strings.HasPrefix(Version, "release-") {
+		return Version
+	}
+	// get the version from the build info
+	v, ok := debug.ReadBuildInfo()
+	if ok {
+		return v.Main.Version + "-" + v.GoVersion
+	}
+	return Version
+}