from rsync manual:
--compare-dest=DIR
This option instructs rsync to use DIR on the destination machine as an
additional hierarchy to compare destination files against doing transfers
(if the files are missing in the destination directory). If a file is found
in DIR that is identical to the sender's file, the file will NOT be
transferred to the destination directory. This is useful for creating
a sparse backup of just files that have changed from an earlier backup.
--copy-dest=DIR
This option behaves like --compare-dest, but rsync will also copy unchanged
files found in DIR to the destination directory using a local copy.
This is useful for doing transfers to a new destination while leaving
existing files intact, and then doing a flash-cutover when all files
have been successfully transferred.
On google fs (drive, google photos, and google cloud storage), if
headless is selected, do not open browser.
This also supplies a new option "auth-no-open-browser" for authorize
if the user does not want it.
This should fix#3323.
This was broken in e337cae0c5 when we deleted the transfers
immediately.
This is fixed by keeping a merged slice of time ranges of completed
transfers and adding those to the current transfers.
In a28239f005 we made --files-from obey --no-traverse. In the
process this caused --files-from without --no-traverse to do a
complete recursive scan unecessarily.
This was only noticeable in users of fs/march, so sync/copy/move/etc
not in ls/lsf/etc.
This fix makes sure that we use conventional directory listings in
fs/march unless `--files-from` and `--no-traverse` is set or
`--fast-list` is active.
Fixes#3619
It was reported that v1.49.4 which was accidentally compiled with
go1.13 instead of go1.12 produced errors like this:
Failed to get StartPageToken: Get https://www.googleapis.com/drive/v3/changes/startPageToken?XXX: stream error: stream ID 1789; INTERNAL_ERROR
IO error: open file failed: Get https://www.googleapis.com/drive/v3/files/XXX?alt=media: stream error: stream ID 1781; INTERNAL_ERROR
These are errors from the http2 library. It appears that go1.13 when
communicating with google drive defaults to http2 whereas with go1.12
it doesn't.
It is unclear what is causing these errors, but retrying them since
they don't happen very often seems like a valid strategy.
This was fixed in v1.49.5 by compiling with go1.12 - this fix is
designed to work with go1.13
See: https://forum.rclone.org/t/1-49-4-plex-internal-errors-on-google-drive/12108/
Before this fix, attempting to set a non top level environment
variable would fail with "Couldn't find flag".
This fixes it by passing in the flags that the env var is being set
from.
Fixes#3615
Before this change --update would transfer any file which was newer
than the destination regardless of whether it had changed or not.
This is needlessly wasteful of bandwidth.
After this change --update will only transfer files if they are newer
**and** they are different (checked with checksum and size).
'Couldn't find file - Need to Transfer' changed to 'Need to transfer -
File Not Found at Destination' because while reading the debug logs, it
confuses with failure in operation.
