Before this change we used the same datastructure for managing empty
directories for both --create-empty-src-dirs in sync/copy/move and for
the --delete-empty-src-dirs flag in move.
These two uses are subtly incompatible and this change uses a separate
datastructure for both uses. This makes it more accurate and easier to
understand.
Before this change when the sync routine attempted to normalise a
case, say from "FiLe.txt" to "file.txt" this caused a 400 Bad Request
error:
> This copy request is illegal because it is trying to copy an object
> to itself without changing the object's metadata, storage class,
> website redirect location or encryption attributes.
This was caused by passing the same object as the source and
destination to the move routine, whereas the destination object had a
different case and didn't exist, so should have been passed as nil.
See: https://github.com/rclone/rclone/pull/7743#discussion_r1557345906
Some backends (like s3, swift, gcs, azureblob) don't have directories
(this can be overridden on some using the directory markers feature).
It therefore makes no sense to sync directory times from them as they
will all be a value made up by rclone (--default-time)
We use the feature flag CanHaveEmptyDirectories to mark backends
without real directory support and disable the directory modification
time syncing on those.
Before this change, directory modtimes (and metadata) were always synced from
src to dst, even if already in sync (i.e. their modtimes already matched.) This
potentially required excessive API calls, made logs noisy, and was potentially
problematic for backends that create "versions" or otherwise log activity
updates when modtime/metadata is updated.
After this change, a new DirsEqual function is added to check whether dirs are
equal based on a number of factors such as ModifyWindow and sync flags in use.
If the dirs are equal, the modtime/metadata update is skipped.
For backends that require setDirModTimeAfter, the "after" sync is performed only
for dirs that could have been changed by the sync (i.e. dirs containing files
that were created/updated.)
Note that dir metadata (other than modtime) is not currently considered by
DirsEqual, consistent with how object metadata is synced (only when objects are
unequal for reasons other than metadata).
To sync dir modtimes and metadata unconditionally (the previous behavior), use
--ignore-times.
Directory mod times are synced by default if the backend is capable
and directory metadata is synced if the --metadata flag is provided
and the backend is capable.
This updates the bisync golden tests also which were affected by
--dry-run setting of directory modtimes.
Fixes#6685
This should be more efficient for the purposes of --fix-case, as operations.DirMove
accepts `srcRemote` and `dstRemote` arguments, while sync.MoveDir does not.
This also factors the two-step-move logic to operations.DirMoveCaseInsensitive, so
that it is reusable by other commands.
Before this change, operations.moveOrCopyFile had a special section to detect
and handle changing case of a file on a case insensitive remote, but
operations.Move did not. This caused operations.Move to fail for certain
backends that are incapable of renaming a file in-place to an equal-folding name.
(Not all case-insensitive backends have this limitation -- for example, Dropbox
does but macOS local does not.)
After this change, the special two-part-move section from
operations.moveOrCopyFile is factored out to its own function,
moveCaseInsensitive, which is then called from both operations.moveOrCopyFile
and operations.Move.
Before this change, a sync to a case insensitive dest (such as macOS / Windows)
would not result in a matching filename if the source and dest had casing
differences but were otherwise equal. For example, syncing `hello.txt` to
`HELLO.txt` would result in the dest filename remaining `HELLO.txt`.
Furthermore, `--local-case-sensitive` did not solve this, as it actually caused
`HELLO.txt` to get deleted!
After this change, `HELLO.txt` is renamed to `hello.txt` to match the source,
only if the `--fix-case` flag is specified. (The old behavior remains the
default.)
Logger instruments the Sync routine with a status report for each file pair,
making it possible to output a list of the synced files, along with their
attributes and sigil categorization (match/differ/missing/etc.)
It is very customizable by passing in a custom LoggerFn, options, and
io.Writers to be written to. Possible uses include:
- allow sync to write path lists to a file, in the same format as rclone check
- allow sync to output a --dest-after file using the same format flags as lsf
- receive results as JSON when calling sync from an internal function
- predict the post-sync state of the destination
For usage examples, see bisync.WriteResults() or sync.SyncLoggerFn()
Before this change we were only counting moves as checks. This means
that when using `rclone move` the `Transfers` stat did not count up
like it should do.
This changes introduces a new primitive operations.MoveTransfers which
counts moves as Transfers for use where that is appropriate, such as
rclone move/moveto. Otherwise moves are counted as checks and their
bytes are not accounted.
See: #7183
See: https://forum.rclone.org/t/stats-one-line-date-broken-in-1-64-0-and-later/43263/
Before this change, when using --cutoff-mode=soft and --max-duration
rclone deadlocked when the cutoff limit was reached.
This was because the sync objects Pipe became full and nothing was
emptying it because the cutoff was reached.
This changes the context for putting items into the pipe to be the one
that gets cancelled when the cutoff is reached.
See: https://forum.rclone.org/t/sync-command-hanging-using-cutoff-mode-soft-with-max-duration-time-flags/40866
Before this change we weren't outputing a debug log on the start of a
transfer for files which existed on the source but not in the
destination.
This was different to the single file copy routine.
If using rclone move and --check-first and --order-by then rclone uses
the transfer routine to delete files to ensure perfect ordering.
This will cause the transfer stats to have a larger than expected
number of items in it so we don't enable this by default.
Fixes#6033
There were some places (e.g. deleting files) where we were using
--transfers instead of --checkers to control the concurrency when
files weren't being transferred.
These have been updated to use --checkers.
Before this change, all types of checkers showed "checking" after the
file name despite the fact that not all of them were checking.
After this change, they can show
- checking
- deleting
- hashing
- importing
- listing
- merging
- moving
- renaming
See: https://forum.rclone.org/t/what-is-rclone-checking-during-a-purge/35931/
Before this change --compare-dest and --copy-dest would check to see
if the compare/copy object existed first, before seeing if the
destination object was present.
This is inefficient, because in most --copy-dest syncs the destination
will be present and the compare/copy object need never be tested.
--compare-dest syncs may also be speeded up if they are done to the
same directory repeatedly.
This fixes the problem by re-arranging the logic so if the transfer is
not needed then the compare/copy object is never tested.
See: https://forum.rclone.org/t/union-with-copy-dest-enabled-is-slower-than-expected/32172
Before this change using --max-duration and --cutoff-mode soft would
work like --cutoff-mode hard.
This bug was introduced in this commit which made transfers be
cancelable - before that transfers couldn't be canceled.
122a47fba6 accounting: Allow transfers to be canceled with context #3257
This change adds the timeout to the input context for reading files
rather than the transfer context so the files transfers themselves
aren't canceled if --cutoff-mode soft is in action.
This also adds a test for cutoff mode soft and max duration which was
missing.
See: https://forum.rclone.org/t/max-duration-and-retries-not-working-correctly/27738
Previously, the overlap check was based on simple prefix checks of the source and destination paths. Now it actually checks whether the destination is excluded via any filter rule or a "--exclude-if-present"-file.
Before this change, if the --max-duration limit was reached then
rclone would retry the sync as a fatal error wasn't raised.
This checks the deadline and raises a fatal error if necessary at the
end of the sync.
Fixes#6002
This is possible now that we no longer support go1.12 and brings
rclone into line with standard practices in the Go world.
This also removes errors.New and errors.Errorf from lib/errors and
prefers the stdlib errors package over lib/errors.
This change fixes the bug described below:
if a file is removed while the local backend List() runs,
the call will flag an accounting error.
The bug manifests itself if local backend is the Sync target
due to intrinsic concurrency.
The odds to hit this bug depend on --checkers and --transfers.
Chunker over local backend is affected even more because
updating a composite object with a smaller size content
translates into removing chunks on the underlying file system
and involves a number of List() calls.
Before this change, a sync which was finished with a graceful transfer
cutoff could return "context canceled" instead of the correct error.
This fixes the problem by ignoring "context canceled" errors if we
have done a graceful stop.
This is done by making fs.Config private and attaching it to the
context instead.
The Config should be obtained with fs.GetConfig and fs.AddConfig
should be used to get a new mutable config that can be changed.
This adds a context.Context parameter to NewFs and related calls.
This is necessary as part of reading config from the context -
backends need to be able to read the global config.
Before ths fix --cutoff-mode soft and cautious would emit a Fatal
error which stopped the sync immediately.
This fix introduces a new error which is checked in the sync error
processing which stops the sync gracefully.
Fixes#4576
Before this change `--track-renames-strategy` was broken. The hashing
method it used could declare times that were very close together to be
different.
The time hash was discarded and instead we check the modification time
window on every hash match.
Provided that the user doesn't use `--track-renames-strategy` on a
huge number of identically sized files this will perform just fine.
See: https://forum.rclone.org/t/track-renames-strategy-modtime-doesnt-work/16992/5
If your filenames contain two near-identical Unicode characters,
rclone will normalize these, making them identical. This flag
gives you the ability to keep them unique. This might
create unintended side effects, such as duplicating files that
contain certain Unicode characters, when downloading them from
certain cloud providers to a macOS filesystem.
Fixes#4228
Before this change the first pass of --delete-before would output
"There was nothing to transfer" and then proceed to transfer things.
This makes sure the message isn't printed in the delete phase.
See: https://forum.rclone.org/t/incorrect-debug-output/15267
This commit corrects the logic for --track-renames-strategy which
broke the integration tests.
It also improves the parsing of the argument and adds a test for that.
This commit adds the `--track-renames-strategy` flag which allows the
user to choose the strategy for tracking renames when using the
`--track-renames` flag.
This can be "hash" or "modtime" or both currently.
This, when used with `--track-renames-strategy modtime` enables
support for tracking renames in encrypted remotes.
Fixes#3696Fixes#2721
