author | Nishanth Amuluru <nishanth@fossee.in> |
Sat, 08 Jan 2011 11:20:57 +0530 | |
changeset 69 | c6bca38c1cbf |
permissions | -rw-r--r-- |
69
c6bca38c1cbf
Added buildout stuff and made changes accordingly
Nishanth Amuluru <nishanth@fossee.in>
parents:
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changeset
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1 |
Installing setuptools/distribute |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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-------------------------------- |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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Some initial test setup: |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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c6bca38c1cbf
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>>> import sys |
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>>> import zc.buildout |
c6bca38c1cbf
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>>> dest = tmpdir('sample-install') |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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c6bca38c1cbf
Added buildout stuff and made changes accordingly
Nishanth Amuluru <nishanth@fossee.in>
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Setuptools (0.6something) is packaged as an ``.egg``. So when installing it, |
c6bca38c1cbf
Added buildout stuff and made changes accordingly
Nishanth Amuluru <nishanth@fossee.in>
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the egg is downloaded and used. Distribute is packaged as a tarball, which |
c6bca38c1cbf
Added buildout stuff and made changes accordingly
Nishanth Amuluru <nishanth@fossee.in>
parents:
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makes an easy_install call necessary. In older versions of buildout, the |
c6bca38c1cbf
Added buildout stuff and made changes accordingly
Nishanth Amuluru <nishanth@fossee.in>
parents:
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13 |
``_call_easy_install()`` method would call ``_get_dist()`` to get hold of the |
c6bca38c1cbf
Added buildout stuff and made changes accordingly
Nishanth Amuluru <nishanth@fossee.in>
parents:
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setuptools path for calling easy_install. When an updated "distribute" was |
c6bca38c1cbf
Added buildout stuff and made changes accordingly
Nishanth Amuluru <nishanth@fossee.in>
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found, this would try an install again, leading to an infinite recursion. |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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c6bca38c1cbf
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The solution is to just use the setuptools location found at import time, like |
c6bca38c1cbf
Added buildout stuff and made changes accordingly
Nishanth Amuluru <nishanth@fossee.in>
parents:
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happens with the buildout and setuptools location that is inserted in scripts' |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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paths. |
c6bca38c1cbf
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c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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We test this corner case by patching the ``_get_dist()`` call: |
c6bca38c1cbf
Added buildout stuff and made changes accordingly
Nishanth Amuluru <nishanth@fossee.in>
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c6bca38c1cbf
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>>> def mock_get_dist(requirement, ws, always_unzip): |
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... raise RuntimeError("We should not get called") |
c6bca38c1cbf
Added buildout stuff and made changes accordingly
Nishanth Amuluru <nishanth@fossee.in>
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c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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When installing setuptools itself, we expect the "Getting dist" message not to |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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be printed. We call ``_call_easy_install()`` directly and get an error |
c6bca38c1cbf
Added buildout stuff and made changes accordingly
Nishanth Amuluru <nishanth@fossee.in>
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because of a non-existing tarball, but that's the OK for this corner case |
c6bca38c1cbf
Added buildout stuff and made changes accordingly
Nishanth Amuluru <nishanth@fossee.in>
parents:
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test: we only want to test that ``_get_dist()`` isn't getting called: |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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>>> class MockDist(object): |
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... def __str__(self): |
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... return 'nonexisting.tgz' |
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... @property |
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... def project_name(self): |
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... # Testing corner case: there *is* actually |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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... # a newer setuptools package on pypi than we |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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... # are running with, so it really installs it |
c6bca38c1cbf
Added buildout stuff and made changes accordingly
Nishanth Amuluru <nishanth@fossee.in>
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... # and compares project_name. We're past the |
c6bca38c1cbf
Added buildout stuff and made changes accordingly
Nishanth Amuluru <nishanth@fossee.in>
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... # point that we're testing, so we just raise |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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... # the normally expected error. |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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... raise zc.buildout.UserError( |
c6bca38c1cbf
Added buildout stuff and made changes accordingly
Nishanth Amuluru <nishanth@fossee.in>
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... "Couldn't install: nonexisting.tgz") |
c6bca38c1cbf
Added buildout stuff and made changes accordingly
Nishanth Amuluru <nishanth@fossee.in>
parents:
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>>> dist = MockDist() |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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c6bca38c1cbf
Added buildout stuff and made changes accordingly
Nishanth Amuluru <nishanth@fossee.in>
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>>> installer = zc.buildout.easy_install.Installer( |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
parents:
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... dest=dest, |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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... links=[link_server], |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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... index=link_server+'index/', |
c6bca38c1cbf
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... executable=sys.executable, |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
parents:
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... always_unzip=True) |
c6bca38c1cbf
Added buildout stuff and made changes accordingly
Nishanth Amuluru <nishanth@fossee.in>
parents:
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>>> installer._get_dist = mock_get_dist |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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>>> installer._call_easy_install('setuptools', None, dest, dist) |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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Traceback (most recent call last): |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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... |
c6bca38c1cbf
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UserError: Couldn't install: nonexisting.tgz |