Mercurial > hgsubversion
annotate tools/common.sh @ 931:e1dbd9646d6a
svnwrap: use custom StringIO class in get_file()
The wrappers were calling ra.get_file() with a cStringIO object.
Empirically, svn 1.7.5 is writing 16kB blocks to the stream object, and
cStringIO reallocates its internal buffer and doubles its size whenever
it is filled. With large committed files this requires two large
memory blocks at the same time.
SimpleStringIO implements the mimimum StringIO interface used by
ra.get_file() but instead stores all the blocks and "join" them at the
end. It means more fragmentation but requires only one large block,
without overallocation. Also, 16kB blocks should be friendly to most
allocators.
In practice, this simple change let me convert a revision containing
multiple moderately large files, the largest being around 450MB, with a
32-bits Windows setup, python 2.7, swig svn 1.7.5, in stupid mode, while
it was previously aborting with "not enough memory". The same revision
still fails in replay mode.
author | Patrick Mezard <patrick@mezard.eu> |
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date | Sun, 16 Sep 2012 19:31:49 +0200 |
parents | 5071b8511572 |
children |
rev | line source |
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213
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
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1 function verify_current_revision() |
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
2 { |
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
3 /bin/rm -rf * |
388
5071b8511572
tools: Fixes for verification that seemed to be needed.
Augie Fackler <durin42@gmail.com>
parents:
259
diff
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4 exportcmd="svn export `hg svn info 2> /dev/null | grep '^URL: ' | sed 's/URL: //'`@`hg svn info | grep ^Revision | sed 's/.*: //;s/ .*//'` . --force" |
213
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
5 `echo $exportcmd` > /dev/null |
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
6 x=$? |
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
7 if [[ "$x" != "0" ]] ; then |
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
8 echo $exportcmd |
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
9 echo 'export failed!' |
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
10 return 255 |
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
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11 fi |
216
3c87de482011
tools: fixes for wc outputting with spaces.
Augie Fackler <durin42@gmail.com>
parents:
213
diff
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12 if [[ "`hg st | wc -l | python -c 'import sys; print sys.stdin.read().strip()'`" == "0" ]] ; then |
213
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
13 return 0 |
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
14 else |
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
15 if [[ $1 != "keep" ]] ; then |
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
16 revert_all_files |
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
17 fi |
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
18 return 1 |
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
19 fi |
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
20 } |
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
21 |
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
22 function revert_all_files() |
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
23 { |
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
24 hg revert --all |
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
25 hg purge |
b1d2ea765516
tools: refactor stuff into common.sh, make verify-all-heads not revert.
Augie Fackler <durin42@gmail.com>
parents:
diff
changeset
|
26 } |