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https://github.com/Sneed-Group/Poodletooth-iLand
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102 lines
3.6 KiB
Python
102 lines
3.6 KiB
Python
"""Undocumented Module"""
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__all__ = ['deCygwinify', 'getPaths']
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"""This module is used only by the VR Studio programmers who are using
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the ctattach tools. It is imported before any other package, and its
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job is to figure out the correct paths to each of the packages.
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This module is not needed if you are not using ctattach; in this case
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all of the Panda packages will be collected under a common directory,
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which you will presumably have already on your PYTHONPATH. """
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import os
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import sys
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def deCygwinify(path):
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if os.name in ['nt'] and path[0] == '/':
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# On Windows, we may need to convert from a Cygwin-style path
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# to a native Windows path.
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# Check for a case like /i/ or /p/: this converts
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# to i:\ or p:\.
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dirs = path.split('/')
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if len(dirs) > 2 and len(dirs[1]) == 1:
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path = '%s:\%s' % (dirs[1], '\\'.join(dirs[2:]))
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else:
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# Otherwise, prepend $PANDA_ROOT and flip the slashes.
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pandaRoot = os.getenv('PANDA_ROOT')
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if pandaRoot:
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path = os.path.normpath(pandaRoot + path)
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return path
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def getPaths():
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"""
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Add to sys.path the appropriate director(ies) to search for the
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various Panda projects. Typically, these will all be in the same
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directory (which is presumably already on sys.path), but if the VR
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Studio ctattach tools are in use they could be scattered around in
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several places.
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"""
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ctprojs = os.getenv("CTPROJS")
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if ctprojs:
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# The CTPROJS environment variable is defined. We must be
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# using the ctattach tools. In this case, we need to figure
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# out the location of each of the separate trees, and put the
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# parent directory of each one on sys.path. In many cases,
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# these will all be siblings, so we filter out duplicate
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# parent directories.
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print 'Appending to sys.path based on $CTPROJS:'
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# First, get the list of packages, then reverse the list to
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# put it in ctattach order. (The reversal may not matter too
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# much these days, but let's be as correct as we can be.)
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packages = []
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for proj in ctprojs.split():
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projName = proj.split(':')[0]
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packages.append(projName)
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packages.reverse()
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# Now walk through the packages and figure out the parent of
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# each referenced directory.
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parents = []
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for package in packages:
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tree = os.getenv(package)
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if not tree:
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print " CTPROJS contains %s, but $%s is not defined." % (package, package)
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sys.exit(1)
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tree = deCygwinify(tree)
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parent, base = os.path.split(tree)
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if base != package.lower():
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print " Warning: $%s refers to a directory named %s (instead of %s)" % (package, base, package.lower())
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if parent not in parents:
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parents.append(parent)
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# We also put tree/built/lib on sys.path by hand, because we
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# will need to load up the generated C++ modules that got
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# put there. Also, we will find the output of genPyCode
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# in $DIRECT/built/lib/pandac.
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libdir = os.path.join(tree, 'built', 'lib')
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if os.path.isdir(libdir):
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if libdir not in sys.path:
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sys.path.append(libdir)
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# Now the result goes onto sys.path.
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for parent in parents:
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print " %s" % (parent)
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if parent not in sys.path:
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sys.path.append(parent)
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getPaths()
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