mirror of
https://github.com/tahoe-lafs/tahoe-lafs.git
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131 lines
4.7 KiB
Plaintext
131 lines
4.7 KiB
Plaintext
#!/bin/false # You must specify a python interpreter.
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import sys; assert sys.version_info < (3,), ur"Tahoe-LAFS does not run under Python 3. Please use a version of Python between 2.6 and 2.7.x inclusive."
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import os, subprocess
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where = os.path.realpath(sys.argv[0])
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base = os.path.dirname(os.path.dirname(where))
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if sys.platform == "win32":
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perhaps_installed_tahoe = os.path.join(os.path.dirname(sys.executable), 'Scripts', 'tahoe.pyscript')
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else:
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perhaps_installed_tahoe = "/usr/bin/tahoe"
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whoami = '''\
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I am a "bin%stahoe" executable for the convenience of running Tahoe-LAFS
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from its source distribution -- I work only when invoked as the "tahoe"
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script that lives in the "bin" subdirectory of a Tahoe source code
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distribution, and only if you have already run "python setup.py build".
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''' % (os.path.sep,)
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# look for Tahoe.home .
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homemarker = os.path.join(base, "Tahoe.home")
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if not os.path.exists(homemarker):
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print(whoami)
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print('''\
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I just tried to run and found that I am not living in such a directory, so I
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am stopping now. To run Tahoe after it has been is installed, please execute
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my brother, who gets installed into the appropriate place for executables
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when you run "make install" (perhaps as "%s").
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''' % (perhaps_installed_tahoe,))
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sys.exit(1)
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# we've found our home. Put the tahoe support/lib etc. in our PYTHONPATH.
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if sys.platform == "win32":
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supportdir = os.path.join(base, "support", "Lib", "site-packages")
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else:
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supportdir = os.path.join(base, "support",
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"lib",
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"python%d.%d" % sys.version_info[:2],
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"site-packages")
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# update PYTHONPATH so that child processes (like twistd) will use this too
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pp = os.environ.get("PYTHONPATH")
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if pp:
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pp = os.pathsep.join([supportdir] + pp.split(os.pathsep))
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else:
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pp = supportdir
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os.environ["PYTHONPATH"] = pp
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# find commandline args and the location of the tahoe executable.
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if sys.platform == "win32":
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import re
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from ctypes import WINFUNCTYPE, POINTER, byref, c_wchar_p, c_int, windll
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GetCommandLineW = WINFUNCTYPE(c_wchar_p)(("GetCommandLineW", windll.kernel32))
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CommandLineToArgvW = WINFUNCTYPE(POINTER(c_wchar_p), c_wchar_p, POINTER(c_int)) \
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(("CommandLineToArgvW", windll.shell32))
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argc = c_int(0)
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argv_unicode = CommandLineToArgvW(GetCommandLineW(), byref(argc))
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# See src/allmydata/scripts/runner.py for the corresponding unmangler.
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# Note that this doesn't escape \x7F. If it did, test_unicode_arguments_and_output
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# in test_runner.py wouldn't work.
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def mangle(s):
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return str(re.sub(u'[^\\x20-\\x7F]', lambda m: u'\x7F%x;' % (ord(m.group(0)),), s))
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argv = [mangle(argv_unicode[i]) for i in xrange(0, argc.value)]
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# Take only the suffix with the same number of arguments as sys.argv.
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# This accounts for anything that can cause initial arguments to be stripped,
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# for example, the Python interpreter or any options passed to it, or runner
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# scripts such as 'coverage run'. It works even if there are no such arguments,
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# as in the case of a frozen executable created by bb-freeze or similar.
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argv = argv[-len(sys.argv):]
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# On Windows, the script is not directly executable and must be run via python.
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prefix = [sys.executable]
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script = os.path.join(base, "support", "Scripts", "tahoe.pyscript")
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args = argv[1:]
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else:
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# On non-Windows, invoke the script directly, so that 'top' for example shows 'tahoe'.
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prefix = []
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script = os.path.join(base, "support", "bin", "tahoe")
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args = sys.argv[1:]
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# Support indirection via another "runner" script (e.g. coverage).
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# For example: bin/tahoe @RUNNER RUNNER_ARGS @tahoe TAHOE_ARGS
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if len(args) >= 1 and args[0].startswith('@'):
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runner = args[0][1:]
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if runner.endswith('.py') or runner.endswith('.pyscript'):
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prefix = [sys.executable]
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else:
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prefix = []
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if runner == "python":
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runner = sys.executable
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def _subst(a):
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if a == '@tahoe': return script
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return a
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command = prefix + [runner] + map(_subst, args[1:])
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else:
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runner = script
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command = prefix + [script] + args
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if not os.path.exists(script):
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print(whoami)
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print('''\
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I could not find the support script
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"%s".
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To run an installed version of Tahoe-LAFS, please execute the "tahoe"
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script that is installed into the appropriate place for executables
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when you run "python setup.py install" (perhaps as "%s").
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''' % (script, perhaps_installed_tahoe))
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sys.exit(1)
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try:
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res = subprocess.call(command, env=os.environ)
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except Exception as le:
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print(whoami)
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print('''\
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I just tried to invoke "%s"
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and got an exception.
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''' % (runner,))
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raise
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else:
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sys.exit(res)
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