func deletePrefix(ctx context.Context, client *clientv3.Client, key string) error {
for ctx.Err() == nil {
if _, err := client.Delete(ctx, key, clientv3.WithPrefix()); err == nil {
return nil
}
}
return ctx.Err()
}
func syncProcess_v3FSEvent(localDir string, serverPrefix string, c3 *clientv3.Client, event fileChangeEvent) {
etcdPath, err := filepath.Rel(localDir, event.Path)
if err != nil {
log.Printf("syncProcess_v3 error get relpath '%v': %v\n", event.Path, err)
return
}
etcdPath = serverPrefix + etcdPath
etcdPath = strings.Replace(etcdPath, string(os.PathSeparator), "/", -1)
switch {
case event.IsRemoved:
_, err := c3.Delete(context.Background(), etcdPath)
if err != nil {
log.Printf("syncProcess_v3 error while delete etcdkey '%v': %v\n", etcdPath, err)
}
case event.IsDir:
files, _ := ioutil.ReadDir(event.Path)
for _, file := range files {
path := filepath.Join(event.Path, file.Name())
content := []byte(nil)
if !file.IsDir() {
content, err = ioutil.ReadFile(path)
if err != nil {
log.Println(err)
}
}
syncProcess_v3FSEvent(localDir, serverPrefix, c3, fileChangeEvent{
Path: path,
IsDir: file.IsDir(),
IsRemoved: false,
Content: content,
})
}
case !event.IsDir:
resp, err := c3.Get(context.Background(), etcdPath)
if err != nil {
log.Printf("syncProcess_v3 Can't read key '%v': %v\n", etcdPath, err)
}
if len(resp.Kvs) > 0 {
if bytes.Equal(resp.Kvs[0].Value, event.Content) {
return
}
}
_, err = c3.Put(context.Background(), etcdPath, string(event.Content))
if err != nil {
log.Printf("syncProcess_v3 error while put etcdkey '%v': %v\n", etcdPath, err)
}
}
}