Refactor sync/copy/move
* Don't load the src listing unless doing a sync and --delete-before
* Don't load the dst listing if doing copy/move and --no-traverse is set
`rclone --no-traverse copy src dst` now won't load either of the
listings into memory so will use the minimum amount of memory.
This change will reduce the amount of memory rclone uses dramatically
too as in normal operations (copy without --notraverse or sync) as it
no longer loads the source file listing into memory at all.
Fixes#8Fixes#544Fixes#546
If remote:path points to a file make NewFs return a sentinel error
fs.ErrorIsFile and an Fs which points to the parent.
Use this to remove the LimitedFs and just add this file to the
--files-from list.
This means that server side operations can be used also.
Fixes#518Fixes#545
This should fix duplicate files on drive and 409 errors on
amazonclouddrive however it will slow down the upload slightly as
another roundtrip will be needed.
None of the other Fses needed adjusting.
Fixes#483
Gives more accurate error propagation, control of depth of recursion
and short circuit recursion where possible.
Most of the the heavy lifting is done in the "fs" package, making file
system implementations a bit simpler.
This commit contains some code originally by Klaus Post.
Fixes#316
* Define Mover interface to move a single object
* Define DirMover interface to move a directory
* Implement DirMove operation
* Add `rclone move` command
* Tests for Dir Move
To Do
* Implement Move, DirMover in local, drive, dropbox
* unit test for Mover
* unit test for DirMover
This means that dropbox no longer stores MD5SUMs and modified times.
Fixup the tests so that blank MD5SUMs are ignored, and that if
Precision is set to a fs.ModTimeNotSupported, ModTimes can be ignored too.
This opens the door for other FSs which don't support metadata easily.
...unless had some errors or stats interval requested.
Add fs.ErrorLog to differentiate between Logs which should be
suppressed and errors which shouldn't.
This was done by stopping the user configuring single letter remotes
and making sure we don't treat single letter remotes as a remote name,
but as a drive letter.
