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https://github.com/tahoe-lafs/tahoe-lafs.git
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47 lines
1.3 KiB
Python
47 lines
1.3 KiB
Python
# -*- python -*-
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# you must invoke this with an explicit python, from the tree root
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"""Run an arbitrary command with a PYTHONPATH that will include the Tahoe
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code, including dependent libraries. Run this like:
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python misc/run-with-pythonpath.py python foo.py
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or
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python misc/run-with-pythonpath.py trial -r poll allmydata.test.test_util
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"""
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import os, sys, subprocess
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# figure out where support/lib/pythonX.X/site-packages is
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# add it to os.environ["PYTHONPATH"]
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# spawn the child process
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def pylibdir(prefixdir):
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pyver = "python%d.%d" % (sys.version_info[:2])
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if sys.platform == "win32":
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return os.path.join(prefixdir, "Lib", "site-packages")
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else:
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return os.path.join(prefixdir, "lib", pyver, "site-packages")
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basedir = os.path.dirname(os.path.abspath(__file__))
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supportlib = pylibdir(os.path.abspath("support"))
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oldpp = os.environ.get("PYTHONPATH", "").split(os.pathsep)
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if oldpp == [""]:
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# grr silly split() behavior
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oldpp = []
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newpp = os.pathsep.join(oldpp + [supportlib,])
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os.environ['PYTHONPATH'] = newpp
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from twisted.python.procutils import which
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cmd = sys.argv[1]
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if cmd and cmd[0] not in "/~.":
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cmds = which(cmd)
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if not cmds:
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print >>sys.stderr, "'%s' not found on PATH" % (cmd,)
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sys.exit(-1)
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cmd = cmds[0]
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os.execve(cmd, sys.argv[1:], os.environ)
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