# delete deprecated refs to release disk space 4 messages from 2011-11-13 to 2011-11-16. Participants: Peter Vereshagin, Ævar Arnfjörð Bjarmason. Thread: https://gitlist.dev/t/28925 ## Peter Vereshagin, 2011-11-13 15:10 Subject: delete deprecated refs to release disk space Message-ID: <20111113151033.GD16065@external.screwed.box> URL: https://gitlist.dev/e/20111113151033.GD16065%40external.screwed.box ``` Hello. I use git for sql database backups: http://gitweb.vereshagin.org/endvance/blob_plain/HEAD:/endvance/README Am wondering if there is a way to remove the expired revisions? Following that scenario: https://gist.github.com/1362183 I think there should be the way to decrease the space that .git takes. Without compression, of course. No problem if this involves the overwriting of the history like filter-branch does. But filter-branch doesn't seem to be able to remove the old info from repository based on expiration time, does it? Thank you. -- Peter Vereshagin (http://vereshagin.org) pgp: A0E26627 ``` ## Ævar Arnfjörð Bjarmason, 2011-11-13 17:01 Subject: Re: delete deprecated refs to release disk space Message-ID: URL: https://gitlist.dev/e/CACBZZX5kBqM1eye40_Vw0W%3D8qnNsUQBVCE0q9JrixYomGPuZbg%40mail.gmail.com In-Reply-To: <20111113151033.GD16065@external.screwed.box> ``` 2011/11/13 Peter Vereshagin : > Hello. > > I use git for sql database backups: > >    http://gitweb.vereshagin.org/endvance/blob_plain/HEAD:/endvance/README > > Am wondering if there is a way to remove the expired revisions? Following that > scenario: > >    https://gist.github.com/1362183 > > I think there should be the way to decrease the space that .git takes. Without > compression, of course. > > No problem if this involves the overwriting of the history like  filter-branch > does.  But filter-branch doesn't seem to be able to remove the old  info  from > repository based on expiration time, does it? What you're looking for is git-filter-branch + the graft facility. I can't remember the exact invocation, but you echo the sha1 of the commit you want to be the oldest commit to .git/info/grafts, then run git-filter-branch. You can use whatever you like to discover that sha1, e.g. keep N revisions (which might be committed once per day) around, or have some custom time limit etc. ``` ## Peter Vereshagin, 2011-11-14 14:25 Subject: Re: delete deprecated refs to release disk space Message-ID: <20111114142525.GB8641@external.screwed.box> URL: https://gitlist.dev/e/20111114142525.GB8641%40external.screwed.box In-Reply-To: ``` Hello. 2011/11/13 18:01:18 +0100 ??var Arnfj??r?? Bjarmason => To Peter Vereshagin : vArB> What you're looking for is git-filter-branch + the graft facility. I vArB> can't remember the exact invocation, but you echo the sha1 of the vArB> commit you want to be the oldest commit to .git/info/grafts, then run vArB> git-filter-branch. Seem to work for me ( with 'gc' and 'prune' thereafter ) but with these quirks: *) the git-filter-branch(1) tells that there must be two ids: echo "$commit-id $graft-id" >> .git/info/grafts This works for me if only one is put there. *) I'd like to have a command for this. Is this a '--parent-filter' to make the same thing? N commits ago is a fine setting for me as it's a cron job backup. Thanks? -- Peter Vereshagin (http://vereshagin.org) pgp: A0E26627 ``` ## Peter Vereshagin, 2011-11-16 23:44 Subject: Re: delete deprecated refs to release disk space Message-ID: <20111116234422.GA5131@external.screwed.box> URL: https://gitlist.dev/e/20111116234422.GA5131%40external.screwed.box In-Reply-To: <20111114142525.GB8641@external.screwed.box> ``` Hello. 2011/11/14 18:25:25 +0400 Peter Vereshagin => To ??var Arnfj??r?? Bjarmason : PV> N commits ago is a fine setting for me as it's a cron job backup. Thanks? * = Thanks! Here is the PoC QnD code that releases disk space for me by far: git rev-list --all --timestamp |\ perl -Mstrict -MTime::ParseDate -wE \ 'my $match = 0; my $expire = parsedate( "3 days ago" ); while (<>) { chomp; my ( $tstamp => $graft_id ) = split /\s+/; if ( not( $match ) and $tstamp < $expire ) { say $graft_id; $match = 1; } } ' > .git/info/grafts && \ git filter-branch -f for case a one shall seek for it. -- Peter Vereshagin (http://vereshagin.org) pgp: A0E26627 ```