view tests/test-convert-svn-source.t @ 16423:a150923b49ba

revlog: avoid an expensive string copy

This showed up in a statprof profile of "hg svn rebuildmeta", which
is read-intensive on the changelog.  This two-line patch improved
the performance of that command by 10%.

  $ "$TESTDIR/hghave" svn svn-bindings || exit 80

  $ fixpath()
  > {
  >     tr '\\' /
  > }
  $ cat >> $HGRCPATH <<EOF
  > [extensions]
  > convert = 
  > graphlog =
  > [convert]
  > svn.trunk = mytrunk
  > EOF

  $ svnadmin create svn-repo
  $ svnpath=`pwd | fixpath`


  $ expr "$svnpath" : "\/" > /dev/null
  > if [ $? -ne 0 ]; then
  >   svnpath="/$svnpath"
  > fi
  > svnurl="file://$svnpath/svn-repo"

Now test that it works with trunk/tags layout, but no branches yet.

Initial svn import

  $ mkdir projB
  $ cd projB
  $ mkdir mytrunk
  $ mkdir tags
  $ cd ..

  $ svnurl="file://$svnpath/svn-repo/proj%20B"
  $ svn import -m "init projB" projB "$svnurl" | fixpath
  Adding         projB/mytrunk
  Adding         projB/tags
  
  Committed revision 1.

Update svn repository

  $ svn co "$svnurl"/mytrunk B | fixpath
  Checked out revision 1.
  $ cd B
  $ echo hello > 'letter .txt'
  $ svn add 'letter .txt'
  A         letter .txt
  $ svn ci -m hello
  Adding         letter .txt
  Transmitting file data .
  Committed revision 2.

  $ "$TESTDIR/svn-safe-append.py" world 'letter .txt'
  $ svn ci -m world
  Sending        letter .txt
  Transmitting file data .
  Committed revision 3.

  $ svn copy -m "tag v0.1" "$svnurl"/mytrunk "$svnurl"/tags/v0.1
  
  Committed revision 4.

  $ "$TESTDIR/svn-safe-append.py" 'nice day today!' 'letter .txt'
  $ svn ci -m "nice day"
  Sending        letter .txt
  Transmitting file data .
  Committed revision 5.
  $ cd ..

Convert to hg once

  $ hg convert "$svnurl" B-hg
  initializing destination B-hg repository
  scanning source...
  sorting...
  converting...
  3 init projB
  2 hello
  1 world
  0 nice day
  updating tags

Update svn repository again

  $ cd B
  $ "$TESTDIR/svn-safe-append.py" "see second letter" 'letter .txt'
  $ echo "nice to meet you" > letter2.txt
  $ svn add letter2.txt
  A         letter2.txt
  $ svn ci -m "second letter"
  Sending        letter .txt
  Adding         letter2.txt
  Transmitting file data ..
  Committed revision 6.

  $ svn copy -m "tag v0.2" "$svnurl"/mytrunk "$svnurl"/tags/v0.2
  
  Committed revision 7.

  $ "$TESTDIR/svn-safe-append.py" "blah-blah-blah" letter2.txt
  $ svn ci -m "work in progress"
  Sending        letter2.txt
  Transmitting file data .
  Committed revision 8.
  $ cd ..

  $ hg convert -s svn "$svnurl/non-existent-path" dest
  initializing destination dest repository
  abort: no revision found in module /proj B/non-existent-path
  [255]

########################################

Test incremental conversion

  $ hg convert "$svnurl" B-hg
  scanning source...
  sorting...
  converting...
  1 second letter
  0 work in progress
  updating tags

  $ cd B-hg
  $ hg glog --template '{rev} {desc|firstline} files: {files}\n'
  o  7 update tags files: .hgtags
  |
  o  6 work in progress files: letter2.txt
  |
  o  5 second letter files: letter .txt letter2.txt
  |
  o  4 update tags files: .hgtags
  |
  o  3 nice day files: letter .txt
  |
  o  2 world files: letter .txt
  |
  o  1 hello files: letter .txt
  |
  o  0 init projB files:
  
  $ hg tags -q
  tip
  v0.2
  v0.1
  $ cd ..

Test filemap
  $ echo 'include letter2.txt' > filemap
  $ hg convert --filemap filemap "$svnurl"/mytrunk fmap
  initializing destination fmap repository
  scanning source...
  sorting...
  converting...
  5 init projB
  4 hello
  3 world
  2 nice day
  1 second letter
  0 work in progress
  $ hg -R fmap branch -q
  default
  $ hg glog -R fmap --template '{rev} {desc|firstline} files: {files}\n'
  o  1 work in progress files: letter2.txt
  |
  o  0 second letter files: letter2.txt
  

Test stop revision
  $ hg convert --rev 1 "$svnurl"/mytrunk stoprev
  initializing destination stoprev repository
  scanning source...
  sorting...
  converting...
  0 init projB
  $ hg -R stoprev branch -q
  default

Check convert_revision extra-records.
This is also the only place testing more than one extra field in a revision.

  $ cd stoprev
  $ hg tip --debug | grep extra
  extra:       branch=default
  extra:       convert_revision=svn:........-....-....-....-............/proj B/mytrunk@1 (re)
  $ cd ..