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Refactor: break out normalizePath method

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This commit is contained in:
Jakob Borg 2015-11-20 09:41:44 +01:00
parent d7a3cc505c
commit dc96849718
1 changed files with 48 additions and 38 deletions
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84
lib/scanner/walk.go
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@ -252,46 +252,11 @@ func (w *Walker) walkAndHashFiles(fchan, dchan chan protocol.FileInfo) filepath.
return skip return skip
} }
var normalizedRn string relPath, shouldSkip := w.normalizePath(absPath, relPath)
if runtime.GOOS == "darwin" { if shouldSkip {
// Mac OS X file names should always be NFD normalized.
normalizedRn = norm.NFD.String(relPath)
} else {
// Every other OS in the known universe uses NFC or just plain
// doesn't bother to define an encoding. In our case *we* do care,
// so we enforce NFC regardless.
normalizedRn = norm.NFC.String(relPath)
}
if relPath != normalizedRn {
// The file name was not normalized.
if !w.AutoNormalize {
// We're not authorized to do anything about it, so complain and skip.
l.Warnf("File name %q is not in the correct UTF8 normalization form; skipping.", relPath)
return skip return skip
} }
// We will attempt to normalize it.
normalizedPath := filepath.Join(w.Dir, normalizedRn)
if _, err := osutil.Lstat(normalizedPath); os.IsNotExist(err) {
// Nothing exists with the normalized filename. Good.
if err = os.Rename(absPath, normalizedPath); err != nil {
l.Infof(`Error normalizing UTF8 encoding of file "%s": %v`, relPath, err)
return skip
}
l.Infof(`Normalized UTF8 encoding of file name "%s".`, relPath)
} else {
// There is something already in the way at the normalized
// file name.
l.Infof(`File "%s" has UTF8 encoding conflict with another file; ignoring.`, relPath)
return skip
}
relPath = normalizedRn
}
var cf protocol.FileInfo var cf protocol.FileInfo
var ok bool var ok bool
@ -445,6 +410,51 @@ func (w *Walker) walkAndHashFiles(fchan, dchan chan protocol.FileInfo) filepath.
} }
} }
// normalizePath returns the normalized relative path (possibly after fixing
// it on disk), or skip is true.
func (w *Walker) normalizePath(absPath, relPath string) (normPath string, skip bool) {
if runtime.GOOS == "darwin" {
// Mac OS X file names should always be NFD normalized.
normPath = norm.NFD.String(relPath)
} else {
// Every other OS in the known universe uses NFC or just plain
// doesn't bother to define an encoding. In our case *we* do care,
// so we enforce NFC regardless.
normPath = norm.NFC.String(relPath)
}
if relPath != normPath {
// The file name was not normalized.
if !w.AutoNormalize {
// We're not authorized to do anything about it, so complain and skip.
l.Warnf("File name %q is not in the correct UTF8 normalization form; skipping.", relPath)
return "", true
}
// We will attempt to normalize it.
normalizedPath := filepath.Join(w.Dir, normPath)
if _, err := osutil.Lstat(normalizedPath); os.IsNotExist(err) {
// Nothing exists with the normalized filename. Good.
if err = os.Rename(absPath, normalizedPath); err != nil {
l.Infof(`Error normalizing UTF8 encoding of file "%s": %v`, relPath, err)
return "", true
}
l.Infof(`Normalized UTF8 encoding of file name "%s".`, relPath)
} else {
// There is something already in the way at the normalized
// file name.
l.Infof(`File "%s" has UTF8 encoding conflict with another file; ignoring.`, relPath)
return "", true
}
relPath = normPath
}
return normPath, false
}
func checkDir(dir string) error { func checkDir(dir string) error {
if info, err := osutil.Lstat(dir); err != nil { if info, err := osutil.Lstat(dir); err != nil {
return err return err