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Refactor: multiple-if to switch

This commit is contained in:
Jakob Borg 2015-11-20 10:36:21 +01:00
parent f2459e61dd
commit bed6155c79
1 changed files with 19 additions and 23 deletions
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42
lib/scanner/walk.go
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@ -257,29 +257,22 @@ func (w *Walker) walkAndHashFiles(fchan, dchan chan protocol.FileInfo) filepath.
return skip
}
// Index wise symlinks are always files, regardless of what the target
// is, because symlinks carry their target path as their content.
if info.Mode()&os.ModeSymlink == os.ModeSymlink {
if shouldSkip, err := w.walkSymlink(absPath, relPath, dchan); err != nil {
return err
} else if shouldSkip {
switch {
case info.Mode()&os.ModeSymlink == os.ModeSymlink:
var shouldSkip bool
shouldSkip, err = w.walkSymlink(absPath, relPath, dchan)
if err == nil && shouldSkip {
return skip
}
case info.Mode().IsDir():
err = w.walkDir(relPath, info, mtime, dchan)
case info.Mode().IsRegular():
err = w.walkRegular(relPath, info, mtime, fchan)
}
if info.Mode().IsDir() {
if err := w.walkDir(relPath, info, mtime, dchan); err != nil {
return err
}
}
if info.Mode().IsRegular() {
if err := w.walkRegular(relPath, info, mtime, fchan); err != nil {
return err
}
}
return nil
return err
}
}
@ -377,11 +370,14 @@ func (w *Walker) walkDir(relPath string, info os.FileInfo, mtime time.Time, dcha
}
// walkSymlinks returns true if the symlink should be skipped, or an error if
// we should stop walking altogether.
// we should stop walking altogether. filepath.Walk isn't supposed to
// transcend into symlinks at all, but there are rumours that this may have
// happened anyway under some circumstances, possibly Windows reparse points
// or something. Hence the "skip" return from this one.
func (w *Walker) walkSymlink(absPath, relPath string, dchan chan protocol.FileInfo) (skip bool, err error) {
// If the target is a directory, do NOT descend down there. This
// will cause files to get tracked, and removing the symlink will
// as a result remove files in their real location.
// If the target is a directory, do NOT descend down there. This will
// cause files to get tracked, and removing the symlink will as a result
// remove files in their real location.
if !symlinks.Supported {
return true, nil
}