Attempt to fix test-with-fake-dist build step.

misc/build_helpers/test-with-fake-dists.py

@@ -4,35 +4,28 @@ import StringIO, glob, os, platform, shutil, subprocess, sys, tarfile, zipfile
 import pkg_resources
 
 def test():
-    # We put a fake "pycryptopp-0.5.24.egg" package and a fake
+    # We put a "fakedependency-1.0.0.egg" package and a
-    # "pycryptopp-9.9.99.tar.gz" into a directory, but the latter is
+    # "fakedependency-9.9.99.tar.gz" into a directory, but the latter is
-    # booby-trapped so it will raise an exception when you try to build
+    # booby-trapped so it will raise an exception when you try to build it.
-    # it.
+    #
-
+    # Then we run
-    # Then we run "python setup.py test -s
+    #
-    # buildtest.test_with_fake_dist", which imports pycryptopp
+    #   python --fakedependency setup.py -v test -s buildtest.test_with_fake_dist
-    # and passes if pycryptopp.__version__ == '0.5.24'.
+    #
-
+    # which imports fakedependency and passes if fakedependency.__version__ == '1.0.0'.
-    # (If building succeeded -- meaning that you didn't try to build the
+    #
-    # booby-trapped 9.9.99 -- but pycryptopp.__version__ != '0.5.24' then
-    # that means a different version of pycryptopp was already installed
-    # so neither of the two fake pycryptopp packages were needed. In that
-    # case this test should be treated as a "skip" -- the functionality
-    # under test can't be exercised on the current system.)
-
     # The goal is to turn red if the build system tries to build the
     # source dist when it could have used the binary dist.
-
+    #
-    # (Note that for this test to make sense, tahoe-lafs needs to be
+    # Note that for this test to make sense, Tahoe-LAFS needs to be asking
-    # asking for a version of pycryptopp which can be satisfied by either
+    # for a version of fakedependency which can be satisfied by 1.0.0.
-    # 0.5.24 or 0.5.25. At the time of this writing it requires >= 0.5.20
+    # The --fakedependency option to setup.py arranges that.
-    # on x86 and >= 0.5.14 on other architectures.)
 
     fake_distdir = 'tahoe-deps'
-    fake_distname = "pycryptopp"
+    fake_distname = "fakedependency"
     fake_sdistversion = "9.9.99"
-    fake_bdistversion = "0.5.24"
+    fake_bdistversion = "1.0.0"
-    sdist_setup = "raise Exception('Aha I caught you trying to build me. I am a fake pycryptopp 9.9.99 sdist and you should be satisfied with a bdist.')"
+    sdist_setup = "raise Exception('Aha I caught you trying to build me. I am a fakedependency 9.9.99 sdist and you should be satisfied with a bdist.')"
 
     testsuite = "buildtest.test_build_with_fake_dist"
 
@@ -47,29 +40,31 @@ def test():
     bdist_egg_name = os.path.join(dist_dirname, '%s-%s-py%s.%s-%s.egg' % (fake_distname, fake_bdistversion, platform.python_version_tuple()[0], platform.python_version_tuple()[1], pkg_resources.get_supported_platform()))
     try:
         bdist_egg = zipfile.ZipFile(bdist_egg_name, 'w')
-        bdist_egg.writestr('pycryptopp/__init__.py', '__version__ = "%s"\n' % (fake_bdistversion,))
+        bdist_egg.writestr('fakedependency/__init__.py', '__version__ = "%s"\n' % (fake_bdistversion,))
         bdist_egg.close()
 
         sdist_name = os.path.join(dist_dirname, '%s-%s.tar' % (fake_distname, fake_sdistversion))
         sdist = tarfile.open(sdist_name, 'w:gz')
-        sdist.errorlevel =2
+        sdist.errorlevel = 2
         tarinfo = tarfile.TarInfo('setup.py')
-        tarinfo.errorlevel =2
+        tarinfo.errorlevel = 2
         tarinfo.size = len(sdist_setup)
         sdist.addfile(tarinfo, StringIO.StringIO(sdist_setup))
         sdist.close()
 
-        sys.exit(subprocess.call([sys.executable, "setup.py", "-v", "test", "-s", testsuite], env=os.environ))
+        sys.exit(subprocess.call([sys.executable, "setup.py", "--fakedependency", "-v", "test", "-s", testsuite],
+                                 env=os.environ))
     finally:
         os.remove(bdist_egg_name)
         os.remove(sdist_name)
         cleanup()
 
 def cleanup():
-    for path, subdnames, fnames in os.walk('.'):
+    shutil.rmtree('build')
-        for fdname in subdnames + fnames:
+    shutil.rmtree('support')
-            if fdname.startswith('pycryptopp-0.5.24'):
+    shutil.rmtree(os.path.join('src', 'allmydata_tahoe.egg-info'))
-                shutil.rmtree(os.path.join(path, fdname))
+    os.remove(os.path.join('bin', 'tahoe'))
+    os.remove(os.path.join('bin', 'tahoe.pyscript'))
 
 if __name__ == '__main__':
     test()

setup.py

@@ -63,6 +63,10 @@ adglobals = {}
 execfile('src/allmydata/_auto_deps.py', adglobals)
 install_requires = adglobals['install_requires']
 
+if len(sys.argv) > 1 and sys.argv[1] == '--fakedependency':
+    del sys.argv[1]
+    install_requires += ["fakedependency >= 1.0.0"]
+
 __requires__ = install_requires[:]
 if 'trial' in sys.argv or 'test' in sys.argv:
     if version is not None:

src/buildtest/test_build_with_fake_dist.py

@@ -4,7 +4,5 @@ from twisted.trial import unittest
 
 class T(unittest.TestCase):
     def test_version(self):
-        import pycryptopp
+        import fakedependency
-        if pycryptopp.__version__ != '0.5.24':
+        self.failUnlessEqual(fakedependency.__version__, '1.0.0')
-            raise unittest.SkipTest("We can't tell if this worked because this system has a different version of pycryptopp already installed. See comment in misc/build_helpers/test-with-fake-dists.py for details.")
-        # If you tried to build 9.9.99 then you would have gotten an exception and stopped before you even ran this test, so I guess you succeeded!