Fix fscache key mapping. Closes #1778

This commit is contained in:
Deluan 2022-07-25 23:01:19 -04:00
parent b7e50f7731
commit 321b3c5a64
1 changed files with 9 additions and 3 deletions

View File

@ -31,10 +31,10 @@ type spreadFS struct {
//
// dir is created with specified mode if it doesn't exist.
func NewSpreadFS(dir string, mode os.FileMode) (*spreadFS, error) {
fs := &spreadFS{root: dir, mode: mode, init: func() error {
f := &spreadFS{root: dir, mode: mode, init: func() error {
return os.MkdirAll(dir, mode)
}}
return fs, fs.init()
return f, f.init()
}
func (sfs *spreadFS) Reload(f func(key string, name string)) error {
@ -50,7 +50,7 @@ func (sfs *spreadFS) Reload(f func(key string, name string)) error {
// Skip if name is not in the format XX/XX/XXXXXXXXXXXX
parts := strings.Split(path, string(os.PathSeparator))
if len(parts) != 3 || len(parts[0]) != 2 || len(parts[1]) != 2 {
if len(parts) != 3 || len(parts[0]) != 2 || len(parts[1]) != 2 || len(parts[2]) != 40 {
return nil
}
@ -97,6 +97,12 @@ func (sfs *spreadFS) RemoveAll() error {
}
func (sfs *spreadFS) KeyMapper(key string) string {
// When running the Haunter, fscache can call this KeyMapper with the cached filepath instead of the key.
// That's because we don't inform the original cache keys when reloading in the Reload function above.
// If that's the case, just return the file path, as it is the actual mapped key.
if strings.HasPrefix(key, sfs.root) {
return key
}
hash := fmt.Sprintf("%x", sha1.Sum([]byte(key)))
return filepath.Join(sfs.root, hash[0:2], hash[2:4], hash)
}