Hi On Sun, Mar 24, 2013 at 10:57 AM, Anatol Pomozov <[email protected]> wrote: > Hi, > > I am an update junkie. I do "pacman -Suy" several times a day. One > thing I do not like with current pacman is that it redownloads whole > index file each time I update system. > > :: Synchronizing package databases... > core 104.4 KiB 104K/s 00:01 [######################] > 100% > extra 1416.9 KiB 171K/s 00:08 [######################] > 100% > community 1916.6 KiB 204K/s 00:09 [######################] > 100% > > It is 3.5M it total even if only just a few new packages were added. > Multiply 3.5M to number of users and you'll get a huge number. IMHO it > is waste of bandwidth and user time. From other side index is > incremental by it nature. Could pacman use index format that fits > incremental updates better? > > A naive proposal is to use compressed format for "full fetch" (e.g. > for users who did not update more than a week), and uncompressed > append-only index for incremental. On incremental update client sends > request to server "give me append file file starting from position XXX > till the end of file", so only delta from the last update will be > fetched. Then pacman applies the delta to client index. > > What do you think about this idea?
Ok, found pacman.conf option "UseDelta" that seems does what I need. BTW why it is not enabled by default? Isn't saving bandwidth a good thing?
