Mercurial > hg > mercurial-crew-with-dirclash
view tests/test-merge1 @ 5451:0a43875677b1
revlog: break up compression of large deltas
Python's zlib apparently makes an internal copy of strings passed to
compress(). To avoid this, compress strings 1M at a time, then join
them at the end if the result would be smaller than the original.
For initial commits of large but compressible files, this cuts peak
memory usage nearly in half.
author | Matt Mackall <mpm@selenic.com> |
---|---|
date | Thu, 11 Oct 2007 00:46:54 -0500 |
parents | ccfe423d3d0a |
children |
line wrap: on
line source
#!/bin/sh cat <<EOF > merge import sys, os print "merging for", os.path.basename(sys.argv[1]) EOF HGMERGE="python ../merge"; export HGMERGE mkdir t cd t hg init echo This is file a1 > a hg add a hg commit -m "commit #0" -d "1000000 0" echo This is file b1 > b hg add b hg commit -m "commit #1" -d "1000000 0" hg update 0 echo This is file c1 > c hg add c hg commit -m "commit #2" -d "1000000 0" echo This is file b1 > b echo %% no merges expected hg merge 1 hg diff --nodates hg status cd ..; rm -r t mkdir t cd t hg init echo This is file a1 > a hg add a hg commit -m "commit #0" -d "1000000 0" echo This is file b1 > b hg add b hg commit -m "commit #1" -d "1000000 0" hg update 0 echo This is file c1 > c hg add c hg commit -m "commit #2" -d "1000000 0" echo This is file b2 > b echo %% merge should fail hg merge 1 echo %% merge of b expected hg merge -f 1 hg diff --nodates hg status cd ..; rm -r t echo %% mkdir t cd t hg init echo This is file a1 > a hg add a hg commit -m "commit #0" -d "1000000 0" echo This is file b1 > b hg add b hg commit -m "commit #1" -d "1000000 0" echo This is file b22 > b hg commit -m "commit #2" -d "1000000 0" hg update 1 echo This is file c1 > c hg add c hg commit -m "commit #3" -d "1000000 0" echo 'Contents of b should be "this is file b1"' cat b echo This is file b22 > b echo %% merge fails hg merge 2 echo %% merge expected! hg merge -f 2 hg diff --nodates hg status cd ..; rm -r t mkdir t cd t hg init echo This is file a1 > a hg add a hg commit -m "commit #0" -d "1000000 0" echo This is file b1 > b hg add b hg commit -m "commit #1" -d "1000000 0" echo This is file b22 > b hg commit -m "commit #2" -d "1000000 0" hg update 1 echo This is file c1 > c hg add c hg commit -m "commit #3" -d "1000000 0" echo This is file b33 > b echo %% merge of b should fail hg merge 2 echo %% merge of b expected hg merge -f 2 hg diff --nodates hg status