fix version construction

cmd/middleman/main.go

@@ -2,7 +2,8 @@ package main
 
 import (
 	"context"
-	"crypto/sha256"
+	"crypto/sha1"
+	"fmt"
 	"gitea.illuad.fr/adrien/middleman/command"
 	"github.com/rs/zerolog/log"
 	"github.com/urfave/cli/v3"
@@ -19,27 +20,17 @@ type noCommit struct {
 
 func (nc noCommit) String() string {
 	if nc.message == nil {
-		nc.message = []byte("not tied to a commit") // 6344da387a21711b36a91c2fd55f48a026b2be8b5345cbbf32a31f5c089f4d75
+		nc.message = []byte("not tied to a commit") // dbf242029aeedcfe71af2e5843474d8f8e2e9d63
 	}
-	sum := sha256.Sum256(nc.message)
-	return string(sum[:])
+	sum := sha1.Sum(nc.message)
+	return fmt.Sprintf("%x", sum)
 }
 
 const appName = "middleman"
 
-var (
-	version = "dev"
-	commit  = noCommit{}.String()
-)
+var version, commit string
 
 func main() {
-	info, ok := debug.ReadBuildInfo()
-	if ok {
-		if info.Main.Version != "" {
-			version = info.Main.Version
-			commit = info.Main.Sum
-		}
-	}
 	// Note: os.Kill/syscall.SIGKILL (SIGKILL) signal cannot be caught or ignored.
 	ctx, cancel := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
 	defer cancel()
@@ -48,7 +39,7 @@ func main() {
 	app := cli.Command{
 		Name:           appName,
 		Usage:          "Securely mount the Docker socket: apply fine-grained access control to Docker socket HTTP requests",
-		Version:        version + "-" + commit,
+		Version:        buildVersion(),
 		DefaultCommand: command.ServeCmd,
 		Commands: []*cli.Command{
 			command.Serve(group),
@@ -66,3 +57,16 @@ func main() {
 		log.Err(err).Send()
 	}
 }
+
+func buildVersion() string {
+	info, ok := debug.ReadBuildInfo()
+	if ok {
+		if info.Main.Version != "" {
+			return info.Main.Version + "-" + info.Main.Sum
+		}
+	}
+	if version == "" && commit == "" {
+		return "dev" + "-" + noCommit{}.String()
+	}
+	return version + "-" + commit
+}