Should rdiff-backup compress increments?

[Ben Escoto]

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It seems it might be worthwhile for rdiff-backup to compress
increments.  So instead of writing

foo.2002-03-21T04:22:01-07:00.snapshot
bar.2002-03-21T04:22:01-07:00.diff

which are just a copy of foo and an uncompressed diff of bar, write

foo.2002-03-21T04:22:01-07:00.snapshot.gz
bar.2002-03-21T04:22:01-07:00.diff.gz

which are those files compressed with gzip or whatever.

    There shouldn't be any problems with backwards compatibility, but
older versions wouldn't be able to recognize the *.gz files as
increments, so this would be the first break of forwards compatibility
since rdiff-backup's inception.

    I suppose there should be various options, so that rdiff-backup
doesn't compress files already ending in gz, bz2, rpm, etc.  It
probably also isn't worth it to compress small files (less than 4kb
maybe)?


--
Ben Escoto

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