Enable additional eggs support.

slapos/rebootstrap/__init__.py

@@ -57,6 +57,13 @@ class Rebootstrap:
     self.wanted_python = os.path.join(self.parts_directory,
       self.python_section, relative_python)
 
+    # support additional eggs
+    self.eggs = []
+    wanted_eggs = rebootstrap_section.get('eggs')
+    if wanted_eggs:
+      wanted_eggs = [q.strip() for q in wanted_eggs.split() if q.strip()]
+      self.eggs = wanted_eggs
+
   def __call__(self):
     self.install_section()
     self.reboot()
@@ -77,18 +84,18 @@ Buildout will be restarted automatically to have this change applied.
     running_python=self.running_python)
     self.logger.info(message)
     options = self.buildout['buildout']
-    specs = ['zc.buildout']
+    self.wanted_eggs = ['zc.buildout']
     # XXX: A lot of below code is took from zc.buildout.buildout.py:_maybe_upgrade
     # which is code duplication issue, but even if newer buildout with needed
     # hooks will be released, this extension shall work on older ones
     if zc.buildout.easy_install.is_distribute:
-      specs.append('distribute')
+      self.wanted_eggs.append('distribute')
     else:
-      specs.append('setuptools')
+      self.wanted_eggs.append('setuptools')
     ws = zc.buildout.easy_install.install(
       [
       (spec + ' ' + options.get(spec+'-version', '')).strip()
-      for spec in specs
+      for spec in self.wanted_eggs
       ],
       options['eggs-directory'],
       links = options.get('find-links', '').split(),