def start(buildout):
global file_name
# normalise version case and make sure that this is stored in
# buildout['versions']
versions_section = buildout['buildout'].get('versions')
current_versions = buildout.get(versions_section, {})
for key,value in current_versions.items():
lower_key = key.lower()
if lower_key != key:
del current_versions[key] # optional, really
current_versions[lower_key] = value
python_version = current_versions.get('python')
if python_version and python_version not in sys.version:
raise IncompatibleVersionError(
"python version specified not found in sys.version:",
python_version
)
# Apply the new versions in the Installer. Whether this is needed
# depends on the loading order of extensions.
default_versions(current_versions)
# patch methods
Installer._get_dist = _get_dist
Installer._constrain = _constrain
# record file name, if needed
if 'buildout_versions_file' in buildout['buildout']:
file_name = buildout['buildout']['buildout_versions_file']
def setUp(self):
self.buildout_config = {
'buildout': {'versions': 'versions'},
'versions': {'A-Package': '1.0'},
}
self.i = Installer(versions=self.buildout_config['versions'])
self.logging = LogCapture('zc.buildout.easy_install')
# Run the extension, which includes installing our patches.
start(self.buildout_config)
# Some other extension, like mr.developer, may run after us
# and call 'default_versions' after changing something to the
# buildout config versions. We should be fine with that.
self.buildout_config['versions']['extra-lower'] = '4.2'
self.buildout_config['versions']['ExtraUpper'] = '4.2'
default_versions(self.buildout_config['versions'])
