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nielash 810644e873 bisync: add --resync-mode for customizing --resync - fixes #5681 Before this change, the path1 version of a file always prevailed during --resync, and many users requested options to automatically select the winner based on characteristics such as newer, older, larger, and smaller. This change adds support for such options. Note that ideally this feature would have been implemented by allowing the existing `--resync` flag to optionally accept string values such as `--resync newer`. However, this would have been a breaking change, as the existing flag is a `bool` and it does not seem to be possible to have a `string` flag that accepts both `--resync newer` and `--resync` (with no argument.) (`NoOptDefVal` does not work for this, as it would force an `=` like `--resync=newer`.) So instead, the best compromise to avoid a breaking change was to add a new `--resync-mode CHOICE` flag that implies `--resync`, while maintaining the existing behavior of `--resync` (which implies `--resync-mode path1`. i.e. both flags are now valid, and either can be used without the other. --resync-mode CHOICE In the event that a file differs on both sides during a `--resync`, `--resync-mode` controls which version will overwrite the other. The supported options are similar to `--conflict-resolve`. For all of the following options, the version that is kept is referred to as the "winner", and the version that is overwritten (deleted) is referred to as the "loser". The options are named after the "winner": - `path1` - (the default) - the version from Path1 is unconditionally considered the winner (regardless of `modtime` and `size`, if any). This can be useful if one side is more trusted or up-to-date than the other, at the time of the `--resync`. - `path2` - same as `path1`, except the path2 version is considered the winner. - `newer` - the newer file (by `modtime`) is considered the winner, regardless of which side it came from. This may result in having a mix of some winners from Path1, and some winners from Path2. (The implementation is analagous to running `rclone copy --update` in both directions.) - `older` - same as `newer`, except the older file is considered the winner, and the newer file is considered the loser. - `larger` - the larger file (by `size`) is considered the winner (regardless of `modtime`, if any). This can be a useful option for remotes without `modtime` support, or with the kinds of files (such as logs) that tend to grow but not shrink, over time. - `smaller` - the smaller file (by `size`) is considered the winner (regardless of `modtime`, if any). For all of the above options, note the following: - If either of the underlying remotes lacks support for the chosen method, it will be ignored and will fall back to the default of `path1`. (For example, if `--resync-mode newer` is set, but one of the paths uses a remote that doesn't support `modtime`.) - If a winner can't be determined because the chosen method's attribute is missing or equal, it will be ignored, and bisync will instead try to determine whether the files differ by looking at the other `--compare` methods in effect. (For example, if `--resync-mode newer` is set, but the Path1 and Path2 modtimes are identical, bisync will compare the sizes.) If bisync concludes that they differ, preference is given to whichever is the "source" at that moment. (In practice, this gives a slight advantage to Path2, as the 2to1 copy comes before the 1to2 copy.) If the files _do not_ differ, nothing is copied (as both sides are already correct). - These options apply only to files that exist on both sides (with the same name and relative path). Files that exist only on one side and not the other are always copied to the other, during `--resync` (this is one of the main differences between resync and non-resync runs.). - `--conflict-resolve`, `--conflict-loser`, and `--conflict-suffix` do not apply during `--resync`, and unlike these flags, nothing is renamed during `--resync`. When a file differs on both sides during `--resync`, one version always overwrites the other (much like in `rclone copy`.) (Consider using `--backup-dir` to retain a backup of the losing version.) - Unlike for `--conflict-resolve`, `--resync-mode none` is not a valid option (or rather, it will be interpreted as "no resync", unless `--resync` has also been specified, in which case it will be ignored.) - Winners and losers are decided at the individual file-level only (there is not currently an option to pick an entire winning directory atomically, although the `path1` and `path2` options typically produce a similar result.) - To maintain backward-compatibility, the `--resync` flag implies `--resync-mode path1` unless a different `--resync-mode` is explicitly specified. Similarly, all `--resync-mode` options (except `none`) imply `--resync`, so it is not necessary to use both the `--resync` and `--resync-mode` flags simultaneously -- either one is sufficient without the other.		2024-01-20 17:17:01 -05:00
.github	build(deps): bump actions/cache from 3 to 4	2024-01-19 17:19:08 +00:00
backend	local: fix cleanRootPath on Windows after go1.21.4 stdlib update	2024-01-20 14:50:08 -05:00
bin	amazonclouddrive: remove Amazon Drive backend code and docs #7539	2024-01-04 17:05:54 +00:00
cmd	bisync: add --resync-mode for customizing --resync - fixes #5681	2024-01-20 17:17:01 -05:00
cmdtest	cmdtest: fix typos found by codespell	2023-03-24 20:44:25 +00:00
contrib	docker volume plugin: add missing fuse3 dependency #6844	2023-03-15 15:57:53 +00:00
docs	bisync: add --resync-mode for customizing --resync - fixes #5681	2024-01-20 17:17:01 -05:00
fs	bisync: full support for comparing checksum, size, modtime - fixes #5679 fixes #5683 fixes #5684 fixes #5675	2024-01-20 16:08:06 -05:00
fstest	build: remove random.Seed since random generator is seeded automatically in go1.20	2024-01-15 16:22:07 +00:00
graphics	build: Add file properties and icon to Windows executable (fixes #4304 )	2020-06-11 09:26:14 +01:00
lib	build: remove random.Seed since random generator is seeded automatically in go1.20	2024-01-15 16:22:07 +00:00
librclone	docs/librclone: the newer and recommended ucrt64 subsystem of msys2 can now be used for building on windows	2024-01-01 21:56:45 +01:00
vfs	build: remove random.Seed since random generator is seeded automatically in go1.20	2024-01-15 16:22:07 +00:00
.gitattributes	build: add azure pipelines build	2019-08-06 10:31:32 +01:00
.gitignore	serve s3: let rclone act as an S3 compatible server	2023-11-16 16:59:55 +00:00
.golangci.yml	build: re-enable revive linters	2023-08-29 13:01:15 +01:00
CONTRIBUTING.md	Refresh CONTRIBUTING.md	2023-11-19 12:48:27 +00:00
COPYING	Initial commit - some small parts working	2012-11-18 17:32:31 +00:00
Dockerfile	build: fix docker build on arm/v6	2024-01-03 17:43:23 +00:00
MAINTAINERS.md	Add @nielash as bisync maintainer	2023-09-05 04:05:39 -04:00
MANUAL.html	Version v1.65.0	2023-11-26 16:07:39 +00:00
MANUAL.md	Version v1.65.0	2023-11-26 16:07:39 +00:00
MANUAL.txt	Version v1.65.0	2023-11-26 16:07:39 +00:00
Makefile	build: use API when fetching golangci-lint as it is more reliable	2024-01-15 16:22:07 +00:00
README.md	docs: add bisync to index	2024-01-20 14:50:08 -05:00
RELEASE.md	build: fix docker build on arm/v6	2024-01-03 17:43:23 +00:00
VERSION	Start v1.66.0-DEV development	2023-11-26 17:14:38 +00:00
go.mod	operations: add logger to log list of sync results -- fixes #7282	2024-01-20 14:50:08 -05:00
go.sum	operations: add logger to log list of sync results -- fixes #7282	2024-01-20 14:50:08 -05:00
notes.txt	docs: spelling: etc.	2020-10-28 18:16:23 +00:00
rclone.1	Version v1.65.0	2023-11-26 16:07:39 +00:00
rclone.go	lib: add plugin support	2019-09-29 11:05:10 +01:00