def get_newest_release(package_name, index=None):
"""Get the newest release version for a package from pypi.
"""
installer = Installer(index=index)
requirement = Requirement.parse(package_name)
dist = installer._obtain(requirement)
if dist:
return dist.version
else:
return None
def _get_installer(self):
from zc.buildout.easy_install import Installer
import sys
dest = self.buildout['buildout']['eggs-directory']
links = self.buildout['buildout'].get('find-links', '').split()
index = self.buildout['buildout'].get('index')
always_unzip = None
path = [self.buildout['buildout']['develop-eggs-directory']]
allow_hosts = ('*', )
newest = True
versions = None
use_dependency_links = False
check_picked = True
installer = Installer(dest,
links,
index,
sys.executable,
always_unzip,
path,
newest,
versions,
use_dependency_links,
allow_hosts=allow_hosts,
check_picked=check_picked)
return installer
class TestStartExtension(TestCase):
"""Test the start extension.
"""
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'])
def tearDown(self):
self.logging.uninstall()
def _check(self, requirement, expected):
parsed_req = tuple(parse_requirements(requirement))[0]
result = self.i._constrain(parsed_req)
self.failUnless(isinstance(result, Requirement))
compare(expected, str(result))
def test_normal(self):
self._check('A-Package', 'A-Package==1.0')
self.logging.check()
def test_lowercase(self):
self._check('a_package', 'a-package==1.0')
self.logging.check()
def test_uppercase(self):
self._check('A_PACKAGE', 'A-PACKAGE==1.0')
self.logging.check()
def test_sanity(self):
# A non-pinned package should still be reported as such.
self._check('B_Package', 'B-Package')
self.logging.check()
def test_extra(self):
# A pin added after our extension has run is picked up as well.
self._check('extra-lower', 'extra-lower==4.2')
self.logging.check()
def test_extra_lower(self):
# A pin added after our extension has run is not lowercased
# though.
self._check('ExtraUpper', 'ExtraUpper')
self.logging.check()
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'])
