Simplify node lock and various small changes

Co-authored-by: Fabian Kammel <fabian@kammel.dev>
Co-authored-by: Daniel Weiße <66256922+daniel-weisse@users.noreply.github.com>

hack/pseudo-version/pseudo-version.go

@@ -0,0 +1,60 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"time"
+
+	"github.com/edgelesssys/constellation/hack/pseudo-version/internal/git"
+	"github.com/edgelesssys/constellation/internal/logger"
+	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
+	"golang.org/x/mod/module"
+)
+
+func main() {
+	major := flag.String("major", "v1", "Optional major version")
+	base := flag.String("base", "", "Optional base version")
+	revisionTimestamp := flag.String("time", "", "Optional revision time")
+	revision := flag.String("revision", "", "Optional revision (git commit hash)")
+	flag.Parse()
+
+	log := logger.New(logger.JSONLog, zapcore.InfoLevel)
+
+	gitc, err := git.New()
+	if err != nil {
+		log.With(zap.Error(err)).Fatalf("Failed to initialize git client")
+	}
+
+	if *base == "" {
+		_, versionTag, err := gitc.FirstParentWithVersionTag()
+		if err != nil {
+			log.With(zap.Error(err)).Fatalf("Failed to find base version")
+		}
+		*base = versionTag
+	}
+
+	var headRevision string
+	var headTime time.Time
+	if *revisionTimestamp == "" || *revision == "" {
+		var err error
+		headRevision, headTime, err = gitc.Revision()
+		if err != nil {
+			log.With(zap.Error(err)).Fatalf("Failed to retrieve HEAD")
+		}
+	}
+
+	if *revisionTimestamp != "" {
+		headTime, err := time.Parse("20060102150405", *revisionTimestamp)
+		if err != nil {
+			log.With(zap.Error(err)).With("time", headTime).Fatalf("Failed to parse revision timestamp")
+		}
+	}
+
+	if *revision == "" {
+		*revision = headRevision
+	}
+
+	version := module.PseudoVersion(*major, *base, headTime, *revision)
+	fmt.Println(version)
+}