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 $(BASEDIR)/support/lib/python2.5/site-packages
33 (or cygpath equivalent)
34 setup.py develop --prefix=$(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
125 # Make the dependency-version-requirement, which is used by the Makefile at
126 # build-time, also available to the app at runtime:
128 shutil.copyfile("_auto_deps.py", os.path.join("src", "allmydata", "_auto_deps.py"))
131 "Development Status :: 5 - Production/Stable",
132 "Environment :: Console",
133 "Environment :: Web Environment",
134 "License :: OSI Approved :: GNU General Public License (GPL)",
135 "License :: DFSG approved",
136 "License :: Other/Proprietary License",
137 "Intended Audience :: Developers",
138 "Intended Audience :: End Users/Desktop",
139 "Intended Audience :: System Administrators",
140 "Operating System :: Microsoft",
141 "Operating System :: Microsoft :: Windows",
142 "Operating System :: Microsoft :: Windows :: Windows NT/2000",
143 "Operating System :: Unix",
144 "Operating System :: POSIX :: Linux",
145 "Operating System :: POSIX",
146 "Operating System :: MacOS :: MacOS X",
147 "Operating System :: OS Independent",
148 "Natural Language :: English",
149 "Programming Language :: C",
150 "Programming Language :: Python",
151 "Programming Language :: Python :: 2",
152 "Programming Language :: Python :: 2.4",
153 "Programming Language :: Python :: 2.5",
154 "Topic :: Utilities",
155 "Topic :: System :: Systems Administration",
156 "Topic :: System :: Filesystems",
157 "Topic :: System :: Distributed Computing",
158 "Topic :: Software Development :: Libraries",
159 "Topic :: Communications :: Usenet News",
160 "Topic :: System :: Archiving :: Backup",
161 "Topic :: System :: Archiving :: Mirroring",
162 "Topic :: System :: Archiving",
166 VERSIONFILE = "src/allmydata/_version.py"
169 verstrline = open(VERSIONFILE, "rt").read()
170 except EnvironmentError:
171 pass # Okay, there is no version file.
173 VSRE = r"^verstr = ['\"]([^'\"]*)['\"]"
174 mo = re.search(VSRE, verstrline, re.M)
178 print "unable to find version in %s" % (VERSIONFILE,)
179 raise RuntimeError("if %s.py exists, it is required to be well-formed" % (VERSIONFILE,))
182 """Welcome to the Tahoe project, a secure, decentralized, fault-tolerant
183 filesystem. All of the source code is available under a Free Software, Open
186 This filesystem is encrypted and spread over multiple peers in such a way that
187 it remains available even when some of the peers are unavailable,
188 malfunctioning, or malicious."""
193 # Nevow requires Twisted to setup, but doesn't declare that requirement in a way that enables
194 # setuptools to satisfy that requirement before Nevow's setup.py tried to "import twisted".
195 setup_requires.append('Twisted >= 2.4.0')
197 # darcsver is needed only if you want "./setup.py darcsver" to write a new
198 # version stamp in src/allmydata/_version.py, with a version number derived from
200 # http://pypi.python.org/pypi/darcsver
201 if 'darcsver' in sys.argv[1:]:
202 setup_requires.append('darcsver >= 1.1.5')
204 # setuptools_darcs is required to produce complete distributions (such as with
205 # "sdist" or "bdist_egg"), unless there is a PKG-INFO file present which shows
206 # that this is itself a source distribution.
207 # http://pypi.python.org/pypi/setuptools_darcs
208 if not os.path.exists('PKG-INFO'):
209 setup_requires.append('setuptools_darcs >= 1.1.0')
211 class ShowSupportLib(Command):
213 def initialize_options(self):
215 def finalize_options(self):
218 # TODO: --quiet suppresses the 'running show_supportlib' message.
219 # Find a way to do this all the time.
220 print supportlib # TODO windowsy
222 class ShowPythonPath(Command):
224 def initialize_options(self):
226 def finalize_options(self):
229 # TODO: --quiet suppresses the 'running show_supportlib' message.
230 # Find a way to do this all the time.
231 print "PYTHONPATH=%s" % os.environ["PYTHONPATH"]
233 class RunWithPythonPath(Command):
234 description = "Run a subcommand with PYTHONPATH set appropriately"
236 user_options = [ ("python", "p",
237 "Treat command string as arguments to a python executable"),
238 ("command=", "c", "Command to be run"),
239 ("directory=", "d", "Directory to run the command in"),
241 boolean_options = ["python"]
243 def initialize_options(self):
246 self.directory = None
247 def finalize_options(self):
250 # os.environ['PYTHONPATH'] is already set by add_tahoe_paths, so we
251 # just need to exec() their command. We must require the command to
252 # be safe to split on whitespace, and have --python and --directory
253 # to make it easier to achieve this.
256 command.append(sys.executable)
258 command.extend(self.command.split())
260 raise RuntimeError("The --command argument is mandatory")
262 os.chdir(self.directory)
264 print "command =", " ".join(command)
265 rc = subprocess.call(command)
268 class CheckAutoDeps(Command):
270 def initialize_options(self):
272 def finalize_options(self):
276 _auto_deps.require_auto_deps()
279 class BuildTahoe(Command):
281 def initialize_options(self):
283 def finalize_options(self):
287 bin_tahoe = os.path.join("bin", "tahoe")
288 old_mode = stat.S_IMODE(os.stat(bin_tahoe)[stat.ST_MODE])
289 new_mode = old_mode | (stat.S_IXUSR | stat.S_IRUSR |
290 stat.S_IXGRP | stat.S_IRGRP |
291 stat.S_IXOTH | stat.S_IROTH )
292 os.chmod(bin_tahoe, new_mode)
294 # 'setup.py develop --prefix SUPPORT' will complain if SUPPORTLIB is
295 # not on PYTHONPATH, because it thinks you are installing to a place
296 # that will not be searched at runtime (which is true, except that we
297 # add SUPPORTLIB to PYTHONPATH to run tests, etc). So set up
298 # PYTHONPATH now, then spawn a 'setup.py develop' command. Also, we
299 # have to create the directory ourselves.
300 if not os.path.isdir(supportlib):
301 os.makedirs(supportlib)
303 command = [sys.executable, "setup.py", "develop", "--prefix", "support"]
304 if sys.platform == "linux2":
305 # workaround for tahoe #229 / setuptools #17, on debian
306 command.extend(["--site-dirs", "/var/lib/python-support/" + pyver])
307 elif sys.platform == "darwin":
308 # this probably only applies to leopard 10.5, possibly only 10.5.5
309 sd = "/System/Library/Frameworks/Python.framework/Versions/2.5/Extras/lib/python"
310 command.extend(["--site-dirs", sd])
311 print "Command:", " ".join(command)
312 rc = subprocess.call(command)
314 print >>sys.stderr, "'setup.py develop' terminated by signal", -rc
317 print >>sys.stderr, "'setup.py develop' exited with rc", rc
320 class Trial(Command):
321 # Unlike 'build' and 'bdist_egg', the 'trial' subcommand cannot be run in
322 # conjunction with other subcommands.
324 # The '-a' argument is split on whitespace and passed into trial. (the
325 # distutils parser does not give subcommands access to the rest of
326 # sys.argv, so unfortunately we cannot just do something like:
327 # setup.py trial --reporter=text allmydata.test.test_util
330 # setup.py trial # run all tests
331 # setup.py trial -a allmydata.test.test_util # run some tests
332 # setup.py trial -a '--reporter=text allmydata.test.test_util' #other args
334 description = "Run unit tests via trial"
336 user_options = [ ("args=", "a", "Argument string to pass to trial: setup.py trial -a allmydata.test.test_util"),
338 def initialize_options(self):
339 self.args = "allmydata"
340 def finalize_options(self):
344 # make sure Twisted is available (for trial itself), and both the
345 # Tahoe source code and our dependent libraries are available (so
346 # that trial has some test code to work with)
348 from twisted.scripts import trial
350 args = self.args.strip().split()
352 # one wrinkle: we want to set the reactor here, because of bug #402
353 # (twisted bug #3218). We just jam in a "--reactor poll" at the start
354 # of the arglist. This does not permit the reactor to be overridden,
356 if sys.platform in ("linux2", "cygwin"):
357 # poll on linux2 to avoid #402 problems with select
358 # poll on cygwin since selectreactor runs out of fds
359 args = ["--reactor", "poll"] + args
361 # zooko also had os.environ["PYTHONUNBUFFERED"]="1" and
362 # args.append("--rterrors")
364 sys.argv = ["trial"] + args
366 print "To run this test directly, use:"
367 print "PYTHONPATH=%s %s" % (os.environ["PYTHONPATH"],
370 print "(run setup.py with -vv for trial command-line details)"
371 trial.run() # this does sys.exit
374 class MySdist(sdist.sdist):
375 """ A hook in the sdist command so that we can determine whether this the
376 tarball should be 'SUMO' or not, i.e. whether or not to include the
377 external dependency tarballs. Note that we always include
378 misc/dependencies/* in the tarball; --sumo controls whether tahoe-deps/*
382 user_options = sdist.sdist.user_options + \
384 "create a 'sumo' sdist which includes the contents of tahoe-deps/*"),
386 boolean_options = ['sumo']
388 def initialize_options(self):
389 sdist.sdist.initialize_options(self)
392 def make_distribution(self):
393 # add our extra files to the list just before building the
394 # tarball/zipfile. We override make_distribution() instead of run()
395 # because setuptools.command.sdist.run() does not lend itself to
396 # easy/robust subclassing (the code we need to add goes right smack
397 # in the middle of a 12-line method). If this were the distutils
398 # version, we'd override get_file_list().
401 # If '--sumo' was specified, include tahoe-deps/* in the sdist.
402 # We assume that the user has fetched the tahoe-deps.tar.gz
403 # tarball and unpacked it already.
404 self.filelist.extend([os.path.join("tahoe-deps", fn)
405 for fn in os.listdir("tahoe-deps")])
406 # In addition, we want the tarball/zipfile to have -SUMO in the
407 # name, and the unpacked directory to have -SUMO too. The easiest
408 # way to do this is to patch self.distribution and override the
409 # get_fullname() method. (an alternative is to modify
410 # self.distribution.metadata.version, but that also affects the
411 # contents of PKG-INFO).
412 fullname = self.distribution.get_fullname()
414 return fullname + "-SUMO"
415 self.distribution.get_fullname = get_fullname
417 return sdist.sdist.make_distribution(self)
419 # Tahoe's dependencies are managed by the find_links= entry in setup.cfg and
420 # the _auto_deps.install_requires list, which is used in the call to setup()
421 # at the end of this file
422 from _auto_deps import install_requires
424 setup(name='allmydata-tahoe',
426 description='secure, decentralized, fault-tolerant filesystem',
427 long_description=LONG_DESCRIPTION,
428 author='the allmydata.org Tahoe project',
429 author_email='tahoe-dev@allmydata.org',
430 url='http://allmydata.org/',
432 cmdclass={"show_supportlib": ShowSupportLib,
433 "show_pythonpath": ShowPythonPath,
434 "run_with_pythonpath": RunWithPythonPath,
435 "check_auto_deps": CheckAutoDeps,
436 "build_tahoe": BuildTahoe,
440 package_dir = {'':'src'},
441 packages=find_packages("src"),
442 classifiers=trove_classifiers,
443 test_suite="allmydata.test",
444 install_requires=install_requires,
445 include_package_data=True,
446 setup_requires=setup_requires,
447 entry_points = { 'console_scripts': [ 'tahoe = allmydata.scripts.runner:run' ] },
448 zip_safe=False, # We prefer unzipped for easier access.