feat: set version from git tag on build

- make `GoTomatoVersion` a variable and default it to "devel"
- add ldflags to `.goreleaser.yaml` for version tagging
- remove "v" from output of `-version`

.goreleaser.yaml

@@ -15,6 +15,8 @@ builds:
       - arm64
     env:
       - CGO_ENABLED=0
+    ldflags:
+      - -s -w -X git.smsvc.net/pomodoro/GoTomato/internal/metadata.GoTomatoVersion={{.Version}}
 
 upx:
   - enabled: true

cmd/server/main.go

@@ -28,8 +28,8 @@ func Start() {
 
 	// show server and protocl version and exit
 	if *showVersionFlag {
-		fmt.Printf("Server-Version: v%s\n", metadata.GoTomatoVersion)
-		fmt.Printf("Protocol-Version: v%s\n", metadata.ProtocolVersion)
+		fmt.Println("Server-Version:", metadata.GoTomatoVersion)
+		fmt.Println("Protocol-Version:", metadata.ProtocolVersion)
 		os.Exit(0)
 	}
 

internal/metadata/version.go

@@ -2,5 +2,6 @@ package metadata
 
 import "strings"
 
-const GoTomatoVersion = "0.1.1"                              // The GoTomato version
+// This will be overwritten by goreleaser on build
+var GoTomatoVersion = "devel"                                // The GoTomato version
 var ProtocolVersion = strings.Split(GoTomatoVersion, ".")[0] // The protocol version