func readIndex(filename string) (*models.Document, error) {
utils.Info.Println("reading index")
if !utils.FileExists(filename) {
utils.Info.Printf("no index found at %s, creating new archive\n", filename)
return getNewDocument(), nil
}
data, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
data = unpackIndex(data, filename)
var document models.Document
err = json.Unmarshal(data, &document)
if err != nil {
return nil, err
}
decryptIndexKey(&document, getPassword())
return &document, nil
}
func getExistingIndexFilename(directory string) string {
base := filepath.Join(directory, databaseFilename)
if utils.FileExists(base) {
return base
}
if utils.FileExists(base + ZipSuffix) {
return base + ZipSuffix
}
if utils.FileExists(base + EncSuffix) {
return base + EncSuffix
}
if utils.FileExists(base + ZipSuffix + EncSuffix) {
return base + ZipSuffix + EncSuffix
}
return getIndexFilename(directory)
}