Mercurial > hg
view tests/test-generaldelta.t @ 19764:e92650e39f1c stable
generaldelta: initialize basecache properly
Previously basecache was incorrectly initialized before adding the first
revision from a changegroup. Basecache value influences when full revisions are
stored in revlog (when using generaldelta). As a result it was possible to
generate a generaldelta-revlog that could be bigger by arbitrary factor than its
non-generaldelta equivalent.
author | Wojciech Lopata <lopek@fb.com> |
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date | Fri, 20 Sep 2013 10:45:51 -0700 |
parents | |
children | 4d2bea6604d3 |
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Check whether size of generaldelta revlog is not bigger than its regular equivalent. Test would fail if generaldelta was naive implementation of parentdelta: third manifest revision would be fully inserted due to big distance from its paren revision (zero). $ hg init repo $ cd repo $ echo foo > foo $ echo bar > bar $ hg commit -q -Am boo $ hg clone --pull . ../gdrepo -q --config format.generaldelta=yes $ for r in 1 2 3; do > echo $r > foo > hg commit -q -m $r > hg up -q -r 0 > hg pull . -q -r $r -R ../gdrepo > done $ cd .. $ regsize=`du -s -b repo/.hg/store/00manifest.i | cut -f 1` $ gdsize=`du -s -b gdrepo/.hg/store/00manifest.i | cut -f 1` $ if ((regsize < gdsize)); then > echo 'generaldelta increased size of a revlog!' > fi