This led to a pretty major refactoring.


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Treat DistutilsErrors as user errors.


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be specified in a versions section.

Changed the log format for picked versions.


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This will allow a versions feature to be added without updating all
recipes initially.  Later, recipes that support custom versions will
be able to override the defaults by passing options.


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- The easy_install module install and build functions now accept a
  versions argument that supplied to mapping from project name to
  version numbers.  This can be used to fix version numbers for
  required distributions and their depenencies.

When a version isn't fixed, using either a versions option or using
  a fixed version number in a requirement, then a debug log message is
  emitted indicating the version picked.  This is useful for setting
  versions options.

- Added a remove testing helper function that removes files or directories.


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no longer causes voluminous setuptools output.  Uisng -vv and -vvv
now triggers extra setuptools output.

Improved a logging message.


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allow for getting less than the newest but still getting what's
necessary.


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Explicitly specifying a Python executable failed if the output of
running Python with the -V option included a 2-digit (rather than a
3-digit) version number.


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Feature Changes
---------------

- Variable substitutions now reflect option data written by recipes.

- A part referenced by a part in a parts list is now added to the parts
  list before the referencing part.  This means that you can omit
  parts from the parts list if they are referenced by other parts.

- Added a develop function to the easy_install module to aid in
  creating develop eggs with custom build_ext options.

- The build and develop functions in the easy_install module now
  return the path of the egg or egg link created.

- Removed the limitation that parts named in the install command can
  only name configured parts.

- Removed support ConfigParser-style variable substitutions
  (e.g. %(foo)s). Only the string-template style of variable
  (e.g. ${section:option}) substitutions will be supported.
  Supporting both violates "there's only one way to do it".

- Deprecated the buildout-section extendedBy option.


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----------

- We treat setuptools as a dependency of any distribution that
  (declares that it) uses namespace packages, whether it declares
  setuptools as a dependency or not.  This wasn't working for eggs
  intalled by virtue of being dependencies.


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`67737 <https://launchpad.net/products/zc.buildout/+bug/67737>`_
     Verbose and quite output options caused errors when the 
     develop buildout option was used to create develop eggs.

`67871 <https://launchpad.net/products/zc.buildout/+bug/67871>`_
     Installation failed if the source was a (local) unzipped
     egg.

`67873 <https://launchpad.net/products/zc.buildout/+bug/67873>`_
     There was an error in producing an error message when part names
     passed to the install command weren't included in the
     configuration.


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moved, rather than copied, removing them from the source directory.


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  setuptools as one of its dependencies, we now treat setuptools as an 
  implicit dependency.  We generate a warning if the distribution
  is a develop egg.

- Remove old develop egg links. This requires storing the old link
  paths in .installed.cfg.


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----------

Non-zip-safe eggs were not unzipped when they were installed.


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versions.

Fixed a bug in installing by direct egg download.


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API. This allowed the tests to be simplified somewhat.


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This makes things go a little faster, makes errors a little easier to
handle, and allows extensions (like the sftp extension) to influence
more of the process.


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Added ability to supply entry points directly. This is useful for
packages that don't declare their entry points.

No longer generate "py-" scripts implicitly.  Added a new option,
interpreter, to request such scripts and specifu their names.


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invoking easy install.  This should make things go faster in practice.

Stop giving setuptools special treatment when downloading.
Unfortunately, this means tests take a lot longer to run and probably
that they can only be run when connected. :(
Maybe I should figure out a way to get stuptools to use a different
default index when running tests. :/


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generated script paths.

Added an arguments option to specify source for arguments to be passed
to entry points.


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The sample buildout is now created using the bootstrapping mechanism
and so has a normal layout.

No longer read ~/.buildout/.default.cfg, when running tests.
(We do read a ~/.buildout/.default.cfg when testing that function, but
we manipulate HOME so that we control what is read.)


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the path set to include a set of distributions and their
dependeoncies. Now, you can also pass a script and arguments.  This
gives me a handy way of invoking setup.py scripts that require
setuptools without having to install setuptools into my system
python. :)


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distributions available. This required working around issues with
easy_install's --upgrade option:

- Upgrade is not recursive. Upgrading a distro doesn't update it's
  dependencies.

- Upgrade doesn't try very hard to avoid searching.  If we require a
  specific version of a distribution, and we already have that
  distribution, there's no point in looking for a newer one.

- easy_install has kind of odd rules for deciding when to look at an
  index.   Now that we use upgrade all the time, easy_install always
  wants to look at an index.

- We get warnings when connecting to index servers, like PyPI that 
  return text/plain not found messages.

We now have much greater control over how dependencies are
managed. We've essentially taken this over from easy_install.

Because we now always talk to an index server and because we want to
control anything we do in a test, many of the tests actually run their
own web servers.

Anyway:

- Now handle upgrades correctly, I think.

- The egg recipe can now install multiple distributions.

- We have the beginnings of offline mode.

- The internal architeture is much cleaner.

- We've merged the easy_install and egglinker modules, tossing
  some superfluois apis in the egglinker module.


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buildout) to be used.


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to be able to use external python interpreters.

Wrote a missing test.


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