Not sure what 1.5 is doing differently, I couldn't find the difference
reading the code but both profiling and timing data show that this
isn't an issue under 1.5/trunk, just under 1.4 into which this change
has already been merged.

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When profiling a simple buildout with 10 parts with identical and
large working sets, this resulted in a decrease of run time from
93.411 to 15.068 seconds, about a 6 fold improvement.  To see the
benefit be sure to run without any increase in verbosity ("-v"
option).

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Squashed commit of the following:

commit 2c3b7f2f
Author: Łukasz Nowak <luke@nexedi.com>
Date:   Wed Aug 31 16:36:18 2011 +0200

    Prove that keys are passed to libnetworkcache.

commit c380b1ea
Author: Łukasz Nowak <luke@nexedi.com>
Date:   Wed Aug 31 15:42:05 2011 +0200

    Support shacache and dir SSL based auth.

Use signature_certificate_list if strings instead of signature_certificate_file.
Additionaly simplify backward compatbility: just do not play with it.

Renamed signature_private_file to signature_private_key_file.
And also signature_public_file to signature_certificate_file.

Both files must be generated by opensssl.
- signature_public_file: used to verify if the content is trustable by
  libnetworkcache
- signature_private_file: used to generate the signature before uploading
  the content to shadir by libnetworkcache.

Use signature_certificate_list if strings instead of signature_certificate_file.
Additionaly simplify backward compatbility: just do not play with it.

Renamed signature_private_file to signature_private_key_file.
And also signature_public_file to signature_certificate_file.

Both files must be generated by opensssl.
- signature_public_file: used to verify if the content is trustable by
  libnetworkcache
- signature_private_file: used to generate the signature before uploading
  the content to shadir by libnetworkcache.

Revert "Revert "Merge branch 'bug_778748'""

This reverts commit 57e5a60d.

This reverts commit 37b515f8, reversing
changes made to ffeeb901.

Please note that re-merging shall be done by reverting this revert and merging
back rest of bug_778748, as described in:
http://www.kernel.org/pub/software/scm/git/docs/howto/revert-a-faulty-merge.txt

Signed-off-by: Lucas Carvalho <lucas@nexedi.com>

This reverts commit 826d7796.

Thanks to simulating real zc.buildout it will be possible to use
slapos.buildout as easy replacement.

This reverts commit 826d7796.

Thanks to simulating real zc.buildout it will be possible to use
slapos.buildout as easy replacement.

git-svn-id: http://svn.zope.org/repos/main/zc.buildout/trunk@120954 62d5b8a3-27da-0310-9561-8e5933582275

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merge lp:~gary/zc.buildout/python-support (also available as svn+ssh://svn.zope.org/repos/main/zc.buildout/branches/gary-launchpad).  This adds support for system Pythons, as well as other changes, such as improved Distribute support and some cleanups.

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git-svn-id: http://svn.zope.org/repos/main/zc.buildout/trunk@110954 62d5b8a3-27da-0310-9561-8e5933582275

Warning when a script name passed in 'scripts' argument of easy_install.scripts
is not defined in an entry point.

git-svn-id: http://svn.zope.org/repos/main/zc.buildout/trunk@110953 62d5b8a3-27da-0310-9561-8e5933582275