rclone/cmd/bisync/testdata/test_check_access/golden/test.log
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

8.3 KiB

(01) : test check-access
 

(02) : test initial bisync
(03) : bisync resync
INFO : Setting --ignore-listing-checksum as neither --checksum nor --compare checksum are set.
INFO : Bisyncing with Comparison Settings:
{
"Modtime": true,
"Size": true,
"Checksum": false,
"NoSlowHash": false,
"SlowHashSyncOnly": false,
"DownloadHash": false
}
INFO : Synching Path1 "{path1/}" with Path2 "{path2/}"
INFO : Copying Path2 files to Path1
INFO : - Path2 Resync is copying files to - Path1
INFO : - Path1 Resync is copying files to - Path2
INFO : Resync updating listings
INFO : Validating listings for Path1 "{path1/}" vs Path2 "{path2/}"
INFO : Bisync successful
 
(04) : test 1. see that check-access passes with the initial setup
(05) : bisync check-access
INFO : Setting --ignore-listing-checksum as neither --checksum nor --compare checksum are set.
INFO : Bisyncing with Comparison Settings:
{
"Modtime": true,
"Size": true,
"Checksum": false,
"NoSlowHash": false,
"SlowHashSyncOnly": false,
"DownloadHash": false
}
INFO : Synching Path1 "{path1/}" with Path2 "{path2/}"
INFO : Building Path1 and Path2 listings
INFO : Path1 checking for diffs
INFO : Path2 checking for diffs
INFO : Checking access health
INFO : Found 2 matching "RCLONE_TEST" files on both paths
INFO : No changes found
INFO : Updating listings
INFO : Validating listings for Path1 "{path1/}" vs Path2 "{path2/}"
INFO : Bisync successful
 
(06) : test 2. delete the path2 subdir RCLONE_TEST and run sync. should fail critical.
(07) : delete-file {path2/}subdir/RCLONE_TEST
(08) : bisync check-access
INFO : Setting --ignore-listing-checksum as neither --checksum nor --compare checksum are set.
INFO : Bisyncing with Comparison Settings:
{
"Modtime": true,
"Size": true,
"Checksum": false,
"NoSlowHash": false,
"SlowHashSyncOnly": false,
"DownloadHash": false
}
INFO : Synching Path1 "{path1/}" with Path2 "{path2/}"
INFO : Building Path1 and Path2 listings
INFO : Path1 checking for diffs
INFO : Path2 checking for diffs
INFO : - Path2 File was deleted - subdir/RCLONE_TEST
INFO : Path2: 1 changes: 0 new, 0 modified, 1 deleted
INFO : Checking access health
ERROR : Access test failed: Path1 count 2, Path2 count 1 - RCLONE_TEST
ERROR : - Access test failed: Path1 file not found in Path2 - subdir/RCLONE_TEST
ERROR : Bisync critical error: check file check failed
ERROR : Bisync aborted. Must run --resync to recover.
Bisync error: bisync aborted
(09) : copy-listings path2-missing
 
(10) : test 3. put the path2 subdir RCLONE_TEST back, resync.
(11) : copy-file {path1/}subdir/RCLONE_TEST {path2/}
(12) : bisync resync
INFO : Setting --ignore-listing-checksum as neither --checksum nor --compare checksum are set.
INFO : Bisyncing with Comparison Settings:
{
"Modtime": true,
"Size": true,
"Checksum": false,
"NoSlowHash": false,
"SlowHashSyncOnly": false,
"DownloadHash": false
}
INFO : Synching Path1 "{path1/}" with Path2 "{path2/}"
INFO : Copying Path2 files to Path1
INFO : - Path2 Resync is copying files to - Path1
INFO : - Path1 Resync is copying files to - Path2
INFO : Resync updating listings
INFO : Validating listings for Path1 "{path1/}" vs Path2 "{path2/}"
INFO : Bisync successful
 
(13) : test 4. run sync with check-access. should pass.
(14) : bisync check-access
INFO : Setting --ignore-listing-checksum as neither --checksum nor --compare checksum are set.
INFO : Bisyncing with Comparison Settings:
{
"Modtime": true,
"Size": true,
"Checksum": false,
"NoSlowHash": false,
"SlowHashSyncOnly": false,
"DownloadHash": false
}
INFO : Synching Path1 "{path1/}" with Path2 "{path2/}"
INFO : Building Path1 and Path2 listings
INFO : Path1 checking for diffs
INFO : Path2 checking for diffs
INFO : Checking access health
INFO : Found 2 matching "RCLONE_TEST" files on both paths
INFO : No changes found
INFO : Updating listings
INFO : Validating listings for Path1 "{path1/}" vs Path2 "{path2/}"
INFO : Bisync successful
 
(15) : test 5. delete path1 top level RCLONE_TEST, run sync. should fail critical.
(16) : delete-file {path1/}RCLONE_TEST
(17) : bisync check-access
INFO : Setting --ignore-listing-checksum as neither --checksum nor --compare checksum are set.
INFO : Bisyncing with Comparison Settings:
{
"Modtime": true,
"Size": true,
"Checksum": false,
"NoSlowHash": false,
"SlowHashSyncOnly": false,
"DownloadHash": false
}
INFO : Synching Path1 "{path1/}" with Path2 "{path2/}"
INFO : Building Path1 and Path2 listings
INFO : Path1 checking for diffs
INFO : - Path1 File was deleted - RCLONE_TEST
INFO : Path1: 1 changes: 0 new, 0 modified, 1 deleted
INFO : Path2 checking for diffs
INFO : Checking access health
ERROR : Access test failed: Path1 count 1, Path2 count 2 - RCLONE_TEST
ERROR : - Access test failed: Path2 file not found in Path1 - RCLONE_TEST
ERROR : Bisync critical error: check file check failed
ERROR : Bisync aborted. Must run --resync to recover.
Bisync error: bisync aborted
(18) : copy-listings path1-missing
 
(19) : test 6. run again. should fail critical due to missing listings.
(20) : bisync check-access
INFO : Setting --ignore-listing-checksum as neither --checksum nor --compare checksum are set.
INFO : Bisyncing with Comparison Settings:
{
"Modtime": true,
"Size": true,
"Checksum": false,
"NoSlowHash": false,
"SlowHashSyncOnly": false,
"DownloadHash": false
}
INFO : Synching Path1 "{path1/}" with Path2 "{path2/}"
ERROR : Bisync critical error: cannot find prior Path1 or Path2 listings, likely due to critical error on prior run
Tip: here are the filenames we were looking for. Do they exist?
Path1: {workdir/}{session}.path1.lst
Path2: {workdir/}{session}.path2.lst
Try running this command to inspect the work dir:
rclone lsl "{workdir}"
ERROR : Bisync aborted. Must run --resync to recover.
Bisync error: bisync aborted
(21) : move-listings missing-listings
 
(22) : test 7. run resync, which will copy the path2 top level back to path1.
(23) : bisync resync
INFO : Setting --ignore-listing-checksum as neither --checksum nor --compare checksum are set.
INFO : Bisyncing with Comparison Settings:
{
"Modtime": true,
"Size": true,
"Checksum": false,
"NoSlowHash": false,
"SlowHashSyncOnly": false,
"DownloadHash": false
}
INFO : Synching Path1 "{path1/}" with Path2 "{path2/}"
INFO : Copying Path2 files to Path1
INFO : - Path2 Resync is copying files to - Path1
INFO : - Path1 Resync is copying files to - Path2
INFO : Resync updating listings
INFO : Validating listings for Path1 "{path1/}" vs Path2 "{path2/}"
INFO : Bisync successful
 
(24) : test 8. run sync with --check-access. should pass.
(25) : bisync check-access
INFO : Setting --ignore-listing-checksum as neither --checksum nor --compare checksum are set.
INFO : Bisyncing with Comparison Settings:
{
"Modtime": true,
"Size": true,
"Checksum": false,
"NoSlowHash": false,
"SlowHashSyncOnly": false,
"DownloadHash": false
}
INFO : Synching Path1 "{path1/}" with Path2 "{path2/}"
INFO : Building Path1 and Path2 listings
INFO : Path1 checking for diffs
INFO : Path2 checking for diffs
INFO : Checking access health
INFO : Found 2 matching "RCLONE_TEST" files on both paths
INFO : No changes found
INFO : Updating listings
INFO : Validating listings for Path1 "{path1/}" vs Path2 "{path2/}"
INFO : Bisync successful