fix: use zero value as deterministic time

pkg/sif/create.go

@@ -149,7 +149,7 @@ func OptCreateWithLaunchScript(s string) CreateOpt {
 func OptCreateDeterministic() CreateOpt {
 	return func(co *createOpts) error {
 		co.id = uuid.Nil
-		co.t = time.Unix(0, 0)
+		co.t = time.Time{}
 		return nil
 	}
 }
@@ -378,7 +378,7 @@ type AddOpt func(*addOpts) error
 // modification of images.
 func OptAddDeterministic() AddOpt {
 	return func(ao *addOpts) error {
-		ao.t = time.Unix(0, 0)
+		ao.t = time.Time{}
 		return nil
 	}
 }
@@ -486,7 +486,7 @@ func OptDeleteCompact(b bool) DeleteOpt {
 // modification of images.
 func OptDeleteDeterministic() DeleteOpt {
 	return func(do *deleteOpts) error {
-		do.t = time.Unix(0, 0)
+		do.t = time.Time{}
 		return nil
 	}
 }
@@ -576,7 +576,7 @@ type SetOpt func(*setOpts) error
 // modification of images.
 func OptSetDeterministic() SetOpt {
 	return func(so *setOpts) error {
-		so.t = time.Unix(0, 0)
+		so.t = time.Time{}
 		return nil
 	}
 }

pkg/sif/descriptor_input_test.go

@@ -178,7 +178,7 @@ func TestNewDescriptorInput(t *testing.T) {
 
 			if err == nil {
 				d := rawDescriptor{}
-				if err := di.fillDescriptor(time.Unix(0, 0), &d); err != nil {
+				if err := di.fillDescriptor(time.Time{}, &d); err != nil {
 					t.Fatal(err)
 				}