func UpdateDirectory(origd string, subs []os.FileInfo, force_reload bool,
sdir *store.Directory) error {
old_itms := make(map[string]*store.Item, len(sdir.Items))
for _, itm := range sdir.Items {
old_itms[*itm.Name] = itm
}
imgs, vids, dirs := filterEntries(subs)
sdir.SubDirectories = dirs
new_items := make([]*store.Item, 0, len(imgs)+len(vids))
for _, new_vid := range vids {
old_vid, _ := old_itms[*new_vid.Name]
new_items = append(new_items, mergeVideo(old_vid, new_vid))
}
for _, new_img := range imgs {
old_img, ok := old_itms[*new_img.Name]
if !ok || old_img.FileTimestamp == nil ||
*old_img.FileTimestamp != *new_img.FileTimestamp || force_reload {
err := LoadImageFile(path.Join(origd, *new_img.Name), new_img)
if err != nil {
log.Printf("%s: %s\n", path.Join(origd, *new_img.Name), err.Error())
}
}
new_items = append(new_items, mergeImage(old_img, new_img))
if len(new_img.Keywords) == 0 {
log.Printf("%s: no keywords\n", path.Join(origd, *new_img.Name))
}
}
sdir.Items = new_items
return nil
}
func (dir *Directory) ToProto() *store.Directory {
sdir := new(store.Directory)
if dir.index_time != time.Unix(0, 0) {
sdir.DirectoryTimestamp = proto.Int64(TimeToProto(dir.index_time))
}
for _, img := range dir.images {
sdir.Items = append(sdir.Items, img.ToProto())
}
return sdir
}
func (db *Database) handleLoad(
update_disk bool, force_reload bool, lod *loaderLoad) (*loaderResult, error) {
if lod.err != nil {
return nil, lod.err
}
var sdir store.Directory
// Ignore missing index, means new directory.
readIndex(db.IndexPath(lod.rel_pat), &sdir)
origd := db.FullOrigPath(lod.rel_pat)
subs, err := ioutil.ReadDir(origd)
if err != nil {
return nil, err
}
if sdir.DirectoryTimestamp == nil ||
ProtoToTime(*sdir.DirectoryTimestamp).Before(lod.orgd_mtime) ||
force_reload {
err = UpdateDirectory(origd, subs, force_reload, &sdir)
if err == nil {
orgd_ts := TimeToProto(lod.orgd_mtime)
sdir.DirectoryTimestamp = &orgd_ts
if update_disk {
err = writeIndex(db.IndexPath(lod.rel_pat), db.IndexTextPath(lod.rel_pat),
&sdir)
if err != nil {
log.Printf("%s: %s\n", lod.rel_pat, err.Error())
err = nil
}
}
}
}
if err != nil {
return nil, err
}
dir := ProtoToDirectory(&sdir, lod.rel_pat)
return &loaderResult{dir: dir, rel_pat: lod.rel_pat, orgd_subs: subs}, nil
}