3 # Allmydata Tahoe -- secure, distributed storage grid
5 # Copyright (C) 2008 Allmydata, Inc.
7 # This file is part of tahoe.
9 # See the docs/about.html file for licensing information.
11 import os, re, sys, stat, subprocess
13 ##### sys.path management
15 basedir = os.path.dirname(os.path.abspath(__file__))
16 pyver = "python%d.%d" % (sys.version_info[:2])
17 if sys.platform == "win32":
18 supportlib = os.path.join("support", "Lib", "site-packages")
20 supportlib = os.path.join("support", "lib", pyver, "site-packages")
21 supportlib = os.path.join(basedir, supportlib)
23 def add_tahoe_paths():
24 """Modify sys.path and PYTHONPATH to include Tahoe and supporting libraries
26 The first step towards building Tahoe is to run::
28 python setup.py build_tahoe
30 which is the equivalent of::
32 mkdir -p $(BASEDIR)/support/lib/python2.5/site-packages
33 (or cygpath equivalent)
34 setup.py develop --multi-version --prefix=$(BASEDIR)/support
36 This installs .eggs for any dependent libraries that aren't already
37 available on the system, into support/lib/pythonN.N/site-packages (or
38 support/Lib/site-packages on windows). It also adds an .egg-link for
39 Tahoe itself into the same directory.
41 We add this directory to os.environ['PYTHONPATH'], so that any child
42 processes we spawn will be able to use these packages.
44 When the setuptools site.py sees that supportlib in PYTHONPATH, it scans
45 through it for .egg and .egg-link entries, and adds them to sys.path .
46 Since python has already processed all the site.py files by the time we
47 get here, we perform this same sort of processing ourselves: this makes
48 tahoe (and dependency libraries) available to code within setup.py
49 itself. This is used by the 'setup.py trial' subcommand, which invokes
50 trial directly rather than spawning a subprocess (this is easier than
51 locating the 'trial' executable, especially when Twisted was installed as
54 We'll need to add these .eggs to sys.path before importing anything that
55 isn't a part of stdlib. All the directories that we add this way are put
56 at the start of sys.path, so they will override anything that was present
57 on the system (and perhaps found lacking by the setuptools requirements
58 expressed in _auto_deps.py).
61 extra_syspath_items = []
62 extra_pythonpath_items = []
64 extra_syspath_items.append(supportlib)
65 extra_pythonpath_items.append(supportlib)
67 # Since we use setuptools to populate that directory, there will be a
68 # number of .egg and .egg-link entries there. Add all of them to
69 # sys.path, since that what the setuptools site.py would do if it
70 # encountered them at process start time. Without this step, the rest of
71 # this process would be unable to use the packages installed there. We
72 # don't need to add them to PYTHONPATH, since the site.py present there
73 # will add them when the child process starts up.
75 if os.path.isdir(supportlib):
76 for fn in os.listdir(supportlib):
77 if fn.endswith(".egg"):
78 extra_syspath_items.append(os.path.join(supportlib, fn))
80 # We also add our src/ directory, since that's where all the Tahoe code
81 # lives. This matches what site.py does when it sees the .egg-link file
82 # that is written to the support dir by an invocation of our 'setup.py
84 extra_syspath_items.append(os.path.join(basedir, "src"))
86 # and we put an extra copy of everything from PYTHONPATH in front, so
87 # that it is possible to override the packages that setuptools downloads
88 # with alternate versions, by doing e.g. "PYTHONPATH=foo python setup.py
90 oldpp = os.environ.get("PYTHONPATH", "").split(os.pathsep)
92 # grr silly split() behavior
94 extra_syspath_items = oldpp + extra_syspath_items
96 sys.path = extra_syspath_items + sys.path
98 # We also provide it to any child processes we spawn, via
99 # os.environ["PYTHONPATH"]
100 os.environ["PYTHONPATH"] = os.pathsep.join(oldpp + extra_pythonpath_items)
102 # add_tahoe_paths() must be called before use_setuptools() is called. I don't
103 # know why. If it isn't, then a later pkg_resources.requires(pycryptopp) call
104 # fails because an old version (in /usr/lib) was already loaded.
108 from ez_setup import use_setuptools
112 # This invokes our own customized version of ez_setup.py to make sure that
113 # setuptools >= v0.6c8 (a.k.a. v0.6-final) is installed.
115 # setuptools < v0.6c8 doesn't handle eggs which get installed into the CWD
116 # as a result of being transitively depended on in a setup_requires, but
117 # then are needed for the installed code to run, i.e. in an
119 use_setuptools(download_delay=0, min_version="0.6c8")
121 from setuptools import find_packages, setup
122 from setuptools.command import sdist
123 from distutils.core import Command
126 pkg_resources.require('setuptools_trial')
127 from setuptools_trial.setuptools_trial import TrialTest
129 # Make the dependency-version-requirement, which is used by the Makefile at
130 # build-time, also available to the app at runtime:
132 shutil.copyfile("_auto_deps.py", os.path.join("src", "allmydata", "_auto_deps.py"))
135 "Development Status :: 5 - Production/Stable",
136 "Environment :: Console",
137 "Environment :: Web Environment",
138 "License :: OSI Approved :: GNU General Public License (GPL)",
139 "License :: DFSG approved",
140 "License :: Other/Proprietary License",
141 "Intended Audience :: Developers",
142 "Intended Audience :: End Users/Desktop",
143 "Intended Audience :: System Administrators",
144 "Operating System :: Microsoft",
145 "Operating System :: Microsoft :: Windows",
146 "Operating System :: Microsoft :: Windows :: Windows NT/2000",
147 "Operating System :: Unix",
148 "Operating System :: POSIX :: Linux",
149 "Operating System :: POSIX",
150 "Operating System :: MacOS :: MacOS X",
151 "Operating System :: OS Independent",
152 "Natural Language :: English",
153 "Programming Language :: C",
154 "Programming Language :: Python",
155 "Programming Language :: Python :: 2",
156 "Programming Language :: Python :: 2.4",
157 "Programming Language :: Python :: 2.5",
158 "Topic :: Utilities",
159 "Topic :: System :: Systems Administration",
160 "Topic :: System :: Filesystems",
161 "Topic :: System :: Distributed Computing",
162 "Topic :: Software Development :: Libraries",
163 "Topic :: Communications :: Usenet News",
164 "Topic :: System :: Archiving :: Backup",
165 "Topic :: System :: Archiving :: Mirroring",
166 "Topic :: System :: Archiving",
170 VERSIONFILE = "src/allmydata/_version.py"
173 verstrline = open(VERSIONFILE, "rt").read()
174 except EnvironmentError:
175 pass # Okay, there is no version file.
177 VSRE = r"^verstr = ['\"]([^'\"]*)['\"]"
178 mo = re.search(VSRE, verstrline, re.M)
182 print "unable to find version in %s" % (VERSIONFILE,)
183 raise RuntimeError("if %s.py exists, it is required to be well-formed" % (VERSIONFILE,))
186 """Welcome to the Tahoe project, a secure, decentralized, fault-tolerant
187 filesystem. All of the source code is available under a Free Software, Open
190 This filesystem is encrypted and spread over multiple peers in such a way that
191 it remains available even when some of the peers are unavailable,
192 malfunctioning, or malicious."""
197 # Nevow requires Twisted to setup, but doesn't declare that requirement in a way that enables
198 # setuptools to satisfy that requirement before Nevow's setup.py tried to "import twisted".
199 setup_requires.extend(['Twisted >= 2.4.0', 'setuptools_trial'])
201 # darcsver is needed only if you want "./setup.py darcsver" to write a new
202 # version stamp in src/allmydata/_version.py, with a version number derived from
204 # http://pypi.python.org/pypi/darcsver
205 if 'darcsver' in sys.argv[1:]:
206 setup_requires.append('darcsver >= 1.1.5')
208 # setuptools_trial is needed only if you want "./setup.py trial" to execute the tests.
209 # http://pypi.python.org/pypi/setuptools_trial
210 if 'trial' in sys.argv[1:]:
211 setup_requires.append('setuptools_trial >= 0.2')
213 # setuptools_darcs is required to produce complete distributions (such as with
214 # "sdist" or "bdist_egg"), unless there is a PKG-INFO file present which shows
215 # that this is itself a source distribution.
216 # http://pypi.python.org/pypi/setuptools_darcs
217 if not os.path.exists('PKG-INFO'):
218 setup_requires.append('setuptools_darcs >= 1.1.0')
220 class ShowSupportLib(Command):
222 def initialize_options(self):
224 def finalize_options(self):
227 # TODO: --quiet suppresses the 'running show_supportlib' message.
228 # Find a way to do this all the time.
229 print supportlib # TODO windowsy
231 class ShowPythonPath(Command):
233 def initialize_options(self):
235 def finalize_options(self):
238 # TODO: --quiet suppresses the 'running show_supportlib' message.
239 # Find a way to do this all the time.
240 print "PYTHONPATH=%s" % os.environ["PYTHONPATH"]
242 class RunWithPythonPath(Command):
243 description = "Run a subcommand with PYTHONPATH set appropriately"
245 user_options = [ ("python", "p",
246 "Treat command string as arguments to a python executable"),
247 ("command=", "c", "Command to be run"),
248 ("directory=", "d", "Directory to run the command in"),
250 boolean_options = ["python"]
252 def initialize_options(self):
255 self.directory = None
256 def finalize_options(self):
259 # os.environ['PYTHONPATH'] is already set by add_tahoe_paths, so we
260 # just need to exec() their command. We must require the command to
261 # be safe to split on whitespace, and have --python and --directory
262 # to make it easier to achieve this.
265 command.append(sys.executable)
267 command.extend(self.command.split())
269 raise RuntimeError("The --command argument is mandatory")
271 os.chdir(self.directory)
273 print "command =", " ".join(command)
274 rc = subprocess.call(command)
277 class CheckAutoDeps(Command):
279 def initialize_options(self):
281 def finalize_options(self):
285 _auto_deps.require_auto_deps()
288 class BuildTahoe(Command):
290 def initialize_options(self):
292 def finalize_options(self):
296 bin_tahoe = os.path.join("bin", "tahoe")
297 old_mode = stat.S_IMODE(os.stat(bin_tahoe)[stat.ST_MODE])
298 new_mode = old_mode | (stat.S_IXUSR | stat.S_IRUSR |
299 stat.S_IXGRP | stat.S_IRGRP |
300 stat.S_IXOTH | stat.S_IROTH )
301 os.chmod(bin_tahoe, new_mode)
303 # 'setup.py develop --multi-version --prefix SUPPORT' will complain if SUPPORTLIB is
304 # not on PYTHONPATH, because it thinks you are installing to a place
305 # that will not be searched at runtime (which is true, except that we
306 # add SUPPORTLIB to PYTHONPATH to run tests, etc). So set up
307 # PYTHONPATH now, then spawn a 'setup.py develop' command. Also, we
308 # have to create the directory ourselves.
309 if not os.path.isdir(supportlib):
310 os.makedirs(supportlib)
312 # command = [sys.executable, "setup.py", "develop", "--multi-version", "--prefix", "support"]
313 command = [sys.executable, "setup.py", "develop", "--prefix", "support"]
314 if sys.platform == "linux2":
315 # workaround for tahoe #229 / setuptools #17, on debian
316 command.extend(["--site-dirs", "/var/lib/python-support/" + pyver])
317 elif sys.platform == "darwin":
318 # this probably only applies to leopard 10.5, possibly only 10.5.5
319 sd = "/System/Library/Frameworks/Python.framework/Versions/2.5/Extras/lib/python"
320 command.extend(["--site-dirs", sd])
321 print "Command:", " ".join(command)
322 rc = subprocess.call(command)
324 print >>sys.stderr, "'setup.py develop' terminated by signal", -rc
327 print >>sys.stderr, "'setup.py develop' exited with rc", rc
330 class Trial(TrialTest):
331 # Custom sub-class of the TrialTest class from the setuptools_trial
332 # plugin so that we can ensure certain options are set by default.
335 # setup.py trial # run all tests
336 # setup.py trial -a allmydata.test.test_util # run some tests
337 # setup.py trial -a '--reporter=text allmydata.test.test_util' #other args
340 def initialize_options(self):
341 TrialTest.initialize_options(self)
343 # We want to set the reactor to 'poll', because of bug #402
344 # (twisted bug #3218).
345 if sys.platform in ("linux2", "cygwin"):
346 # poll on linux2 to avoid #402 problems with select
347 # poll on cygwin since selectreactor runs out of fds
348 self.reactor = "poll"
351 class MySdist(sdist.sdist):
352 """ A hook in the sdist command so that we can determine whether this the
353 tarball should be 'SUMO' or not, i.e. whether or not to include the
354 external dependency tarballs. Note that we always include
355 misc/dependencies/* in the tarball; --sumo controls whether tahoe-deps/*
359 user_options = sdist.sdist.user_options + \
361 "create a 'sumo' sdist which includes the contents of tahoe-deps/*"),
363 boolean_options = ['sumo']
365 def initialize_options(self):
366 sdist.sdist.initialize_options(self)
369 def make_distribution(self):
370 # add our extra files to the list just before building the
371 # tarball/zipfile. We override make_distribution() instead of run()
372 # because setuptools.command.sdist.run() does not lend itself to
373 # easy/robust subclassing (the code we need to add goes right smack
374 # in the middle of a 12-line method). If this were the distutils
375 # version, we'd override get_file_list().
378 # If '--sumo' was specified, include tahoe-deps/* in the sdist.
379 # We assume that the user has fetched the tahoe-deps.tar.gz
380 # tarball and unpacked it already.
381 self.filelist.extend([os.path.join("tahoe-deps", fn)
382 for fn in os.listdir("tahoe-deps")])
383 # In addition, we want the tarball/zipfile to have -SUMO in the
384 # name, and the unpacked directory to have -SUMO too. The easiest
385 # way to do this is to patch self.distribution and override the
386 # get_fullname() method. (an alternative is to modify
387 # self.distribution.metadata.version, but that also affects the
388 # contents of PKG-INFO).
389 fullname = self.distribution.get_fullname()
391 return fullname + "-SUMO"
392 self.distribution.get_fullname = get_fullname
394 return sdist.sdist.make_distribution(self)
396 # Tahoe's dependencies are managed by the find_links= entry in setup.cfg and
397 # the _auto_deps.install_requires list, which is used in the call to setup()
398 # at the end of this file
399 from _auto_deps import install_requires
401 setup(name='allmydata-tahoe',
403 description='secure, decentralized, fault-tolerant filesystem',
404 long_description=LONG_DESCRIPTION,
405 author='the allmydata.org Tahoe project',
406 author_email='tahoe-dev@allmydata.org',
407 url='http://allmydata.org/',
409 cmdclass={"show_supportlib": ShowSupportLib,
410 "show_pythonpath": ShowPythonPath,
411 "run_with_pythonpath": RunWithPythonPath,
412 "check_auto_deps": CheckAutoDeps,
413 "build_tahoe": BuildTahoe,
417 package_dir = {'':'src'},
418 packages=find_packages("src"),
419 classifiers=trove_classifiers,
420 test_suite="allmydata.test",
421 install_requires=install_requires,
422 include_package_data=True,
423 setup_requires=setup_requires,
424 entry_points = { 'console_scripts': [ 'tahoe = allmydata.scripts.runner:run' ] },
425 zip_safe=False, # We prefer unzipped for easier access.