tahoe-lafs/bin/tahoe-script.template
Zooko O'Whielacronx 083795ddd6 setup: a new improved way to create tahoe executables
Create the 'tahoe-script.py' file under the 'bin' directory. The 'tahoe-script.py' file is exactly the same as the 'tahoe-script.template' script except that the shebang line is rewritten to use our sys.executable for the interpreter. On Windows, create a tahoe.exe will execute it.  On non-Windows, make a symlink to it from 'tahoe'.  The tahoe.exe will be copied from the setuptools egg's cli.exe and this will work from a zip-safe and non-zip-safe setuptools egg.
2009-01-28 18:07:16 -07:00

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#!/bin/false # You must specify a python interpreter.
import errno, sys, os, subprocess
where = os.path.realpath(sys.argv[0])
base = os.path.dirname(os.path.dirname(where))
whoami = '''\
I am a "bin/tahoe" executable who is only for the convenience of running
Tahoe from its source distribution -- I work only when invoked as the "tahoe"
script that lives in the "bin/" subdirectory of a Tahoe source code
distribution, and only if you have already run "make".
'''
# look for Tahoe.home .
homemarker = os.path.join(base, "Tahoe.home")
if not os.path.exists(homemarker):
print whoami
print '''\
I just tried to run and found that I am not living in such a directory, so I
am stopping now. To run Tahoe after it has been is installed, please execute
my brother, also named "tahoe", who gets installed into the appropriate place
for executables when you run "make install" (perhaps as /usr/bin/tahoe).
'''
sys.exit(1)
# we've found our home. Put the tahoe support/lib etc. in our PYTHONPATH.
if sys.platform == "win32":
supportdir = os.path.join(base, "support", "Lib", "site-packages")
else:
supportdir = os.path.join(base, "support",
"lib",
"python%d.%d" % sys.version_info[:2],
"site-packages")
# update PYTHONPATH so that child processes (like twistd) will use this too
pp = os.environ.get("PYTHONPATH")
if pp:
pp = os.pathsep.join([supportdir] + pp.split(os.pathsep))
else:
pp = supportdir
os.environ["PYTHONPATH"] = pp
# find the location of the tahoe executable.
bin_dir = "bin"
if sys.platform == "win32":
bin_dir = "Scripts"
executable = os.path.join(base, "support", bin_dir, "tahoe")
try:
res = subprocess.call([executable] + sys.argv[1:], env=os.environ)
except (OSError, IOError), le:
if le.args[0] == errno.ENOENT:
print whoami
print '''\
I just tried to run and could not find my brother, named
"../support/bin/tahoe". To run Tahoe when it is installed, please execute my
brother, also named "tahoe", who gets installed into the appropriate place
for executables when you run "make install" (perhaps as /usr/bin/tahoe).
'''
raise
except Exception, le:
print whoami
print '''\
I just tried to invoke my brother, named "../support/bin/tahoe" and got an
exception.
'''
raise
else:
sys.exit(res)