It can't do what you want. The closest thing would be --compare-dest. On 2/13/19 5:26 PM, Delian Krustev wrote: > On Wednesday, February 13, 2019 11:29:44 AM EET Kevin Korb via rsync > <rsync@lists.samba.org> wrote: >> With --backup in order to end up with 2 files it has to write out a >> whole new file. >> Sure, it only sent the differences (normally that means >> over the network but there is no network here) but the writing end was >> told to duplicate the file being updated before updating it. > > The copy is needed for the comparison of the blocks as "--inplace" overwrites > the destination file. I've tried without "--backup" but then the delta > transfers too much data - close to the size of the backed-up files. > > The copy is in a temp file system which is discarded after the backup (by "rm > -rf"). This temp filesystem is not log structured or copy-on-write so having > a > copy there is not a big problem. Although I don't want a backup of all files > which are modified but rather a TMPDIR. > > The ideal workflow would be to compare SRC and DST and write changed blocks > to > the TMPDIR, then read them from TMPDIR and apply it to DST. > > > > > Cheers > -- > Delian >
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Kevin Korb Phone: (407) 252-6853
Systems Administrator Internet:
FutureQuest, Inc. ke...@futurequest.net (work)
Orlando, Florida k...@sanitarium.net (personal)
Web page: https://sanitarium.net/
PGP public key available on web site.
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