Move cimfs OS build compat check

to the operation functions instead of init()

Signed-off-by: Kirtana Ashok <[email protected]>

Author: kiashok

diff/windows/cimfs.go

@@ -51,7 +51,7 @@ func init() {
 			}
 
 			if !cimfs.IsCimFSSupported() {
-				return nil, fmt.Errorf("host windows version doesn't support CimFS")
+				return nil, fmt.Errorf("host windows version doesn't support CimFS: %w", plugin.ErrSkipPlugin)
 			}
 			ic.Meta.Platforms = append(ic.Meta.Platforms, platforms.DefaultSpec())
 			return NewCimDiff(md.(*metadata.DB).ContentStore())

snapshots/windows/cimfs.go

@@ -70,7 +70,7 @@ func init() {
 // NewCimFSSnapshotter returns a new CimFS based windows snapshotter
 func NewCimFSSnapshotter(root string) (snapshots.Snapshotter, error) {
 	if !cimfs.IsCimFSSupported() {
-		return nil, fmt.Errorf("host windows version doesn't support CimFS")
+		return nil, fmt.Errorf("host windows version doesn't support CimFS: %w", plugin.ErrSkipPlugin)
 	}
 
 	baseSn, err := newBaseSnapshotter(root)