Hello Ian and thanks for this bug report. My question here is: is this
actually a bug?
The manpage for --update says:
This forces rsync to skip any files which exist on the destination
and have a modified time that is newer
It seems sensible to me to make this a '>=' comparison, and not a strict
'>' comparison: when considering modification times there's no need to
update a file which has the same timestamp of the source file.
In other words: I fail to see the problem here. Could you please
elaborate a bit more? Thanks!
** Changed in: rsync (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1965076
Title:
rsync --update incorrectly reports file "is newer" than itself
Status in rsync package in Ubuntu:
Incomplete
Bug description:
rsync 3.2.3 has a broken "--update" option. See the examples below.
The "--update" option incorrectly makes rsync say a file is newer than itself.
Remove the "--update" option, and rsync correctly says the file is "uptodate".
The right output should of course be "is uptodate" in all cases.
This bug also shows up between machines if the source rsync is 3.1.3 and the
destination is 3.2.3.
The bug does not show up if the source rsync is 3.2.3 and the destination is
3.1.3.
$ touch foo
$ rsync -avv --update foo .
delta-transmission disabled for local transfer or --whole-file
foo is newer <=== THIS IS NOT CORRECT - A file can't be newer
than itself.
total: matches=0 hash_hits=0 false_alarms=0 data=0
sent 38 bytes received 96 bytes 268.00 bytes/sec
total size is 0 speedup is 0.00
$ rsync -avv foo .
delta-transmission disabled for local transfer or --whole-file
foo is uptodate <=== THIS IS CORRECT
total: matches=0 hash_hits=0 false_alarms=0 data=0
sent 41 bytes received 106 bytes 294.00 bytes/sec
total size is 0 speedup is 0.00
ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: rsync 3.2.3-4ubuntu1
ProcVersionSignature: Ubuntu 5.13.0-35.40-generic 5.13.19
Uname: Linux 5.13.0-35-generic x86_64
ApportVersion: 2.20.11-0ubuntu71
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue Mar 15 22:47:44 2022
InstallationDate: Installed on 2022-03-16 (0 days ago)
InstallationMedia: Ubuntu 21.10 "Impish Indri" - Release amd64 (20211012)
SourcePackage: rsync
UpgradeStatus: No upgrade log present (probably fresh install)
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