Rip out the Suppressor (maybe to be reintroduced)

scanner/walk.go

@@ -32,10 +32,6 @@ type Walker struct {
 	TempNamer TempNamer
 	// If CurrentFiler is not nil, it is queried for the current file before rescanning.
 	CurrentFiler CurrentFiler
-	// If Suppressor is not nil, it is queried for supression of modified files.
-	// Suppressed files will be returned with empty metadata and the Suppressed flag set.
-	// Requires CurrentFiler to be set.
-	Suppressor Suppressor
 	// If IgnorePerms is true, changes to permission bits will not be
 	// detected. Scanned files will get zero permission bits and the
 	// NoPermissionBits flag set.
@@ -49,11 +45,6 @@ type TempNamer interface {
 	IsTemporary(path string) bool
 }
 
-type Suppressor interface {
-	// Supress returns true if the update to the named file should be ignored.
-	Suppress(name string, fi os.FileInfo) (bool, bool)
-}
-
 type CurrentFiler interface {
 	// CurrentFile returns the file as seen at last scan.
 	CurrentFile(name string) protocol.FileInfo
@@ -201,22 +192,6 @@ func (w *Walker) walkAndHashFiles(fchan chan protocol.FileInfo, ign map[string][
 					return nil
 				}
 
-				if w.Suppressor != nil {
-					if cur, prev := w.Suppressor.Suppress(rn, info); cur && !prev {
-						l.Infof("Changes to %q are being temporarily suppressed because it changes too frequently.", p)
-						cf.Flags |= protocol.FlagInvalid
-						cf.Version = lamport.Default.Tick(cf.Version)
-						cf.LocalVersion = 0
-						if debug {
-							l.Debugln("suppressed:", cf)
-						}
-						fchan <- cf
-						return nil
-					} else if prev && !cur {
-						l.Infof("Changes to %q are no longer suppressed.", p)
-					}
-				}
-
 				if debug {
 					l.Debugln("rescan:", cf, info.ModTime().Unix(), info.Mode()&os.ModePerm)
 				}