More comprehensive build info collection

main.go

@@ -9,10 +9,7 @@
 package main
 
 import (
-	"fmt"
 	"math/rand"
-	"runtime/debug"
-	"strconv"
 	"time"
 
 	"github.com/9seconds/mtg/v2/internal/cli"
@@ -20,8 +17,6 @@ import (
 	"github.com/alecthomas/kong"
 )
 
-var version = "dev" // has to be set by ldflags
-
 func main() {
 	rand.Seed(time.Now().UTC().UnixNano())
 
@@ -29,35 +24,9 @@ func main() {
 		panic(err)
 	}
 
-	if buildInfo, ok := debug.ReadBuildInfo(); ok {
-		vcsCommit := "<no-commit>"
-		vcsDate := time.Now()
-		vcsDirty := ""
-
-		for _, setting := range buildInfo.Settings {
-			switch setting.Key {
-			case "vcs.time":
-				vcsDate, _ = time.Parse(time.RFC3339, setting.Value)
-			case "vcs.revision":
-				vcsCommit = setting.Value
-			case "vcs.modified":
-				if isDirty, _ := strconv.ParseBool(setting.Value); isDirty {
-					vcsDirty = " [dirty]"
-				}
-			}
-		}
-
-		version = fmt.Sprintf("%s (%s: %s on %s%s)",
-			version,
-			buildInfo.GoVersion,
-			vcsDate.Format(time.RFC3339),
-			vcsCommit,
-			vcsDirty)
-	}
-
 	cli := &cli.CLI{}
 	ctx := kong.Parse(cli, kong.Vars{
-		"version": version,
+		"version": getVersion(),
 	})
 
 	ctx.FatalIfErrorf(ctx.Run(cli, version))