But...
ONCE AND FOR ALL!
A recent change introduced WaitForWatching(), which was supposed to
block until the file watcher is actively monitoring the directory.
However this always returned immediately since the watcher is in
kFailed state if the directory was deleted, which counts as watching
(IsStarted returns true for both kWatching and kFailed states).
This CL adds an IsWatching() helper function that returns true only for
the kWatching state, which means that the directory is actively being
watched.
The tools allow efficient and fast synchronization of large directory
trees from a Windows workstation to a Linux target machine.
cdc_rsync* support efficient copy of files by using content-defined
chunking (CDC) to identify chunks within files that can be reused.
asset_stream_manager + cdc_fuse_fs support efficient streaming of a
local directory to a remote virtual file system based on FUSE. It also
employs CDC to identify and reuse unchanged data chunks.
