def runPackedApp(args):
if not args:
raise ArgumentError, "No Panda app specified. Use:\npython RunAppMF.py app.mf"
vfs = VirtualFileSystem.getGlobalPtr()
fname = Filename.fromOsSpecific(args[0])
if not vfs.exists(fname):
raise ArgumentError, "No such file: %s" % (args[0])
mf = Multifile()
if not mf.openRead(fname):
raise ArgumentError, "Not a Panda Multifile: %s" % (args[0])
# Clear *all* the mount points, including "/", so that we no
# longer access the disk directly.
vfs.unmountAll()
# Mount the Multifile under /mf, by convention, and make that our
# "current directory".
vfs.mount(mf, MultifileRoot, vfs.MFReadOnly)
vfs.chdir(MultifileRoot)
# Make sure the directories on our standard Python path are mounted
# read-only, so we can still load Python.
for dirname in sys.path:
vfs.mount(dirname, dirname, vfs.MFReadOnly)
# Also mount some standard directories read-write (temporary and
# app-data directories).
tdir = Filename.temporary('', '')
for dirname in set([ tdir.getDirname(),
Filename.getTempDirectory().cStr(),
Filename.getUserAppdataDirectory().cStr(),
Filename.getCommonAppdataDirectory().cStr() ]):
vfs.mount(dirname, dirname, 0)
# Now set up Python to import this stuff.
VFSImporter.register()
sys.path = [ MultifileRoot ] + sys.path
# Put our root directory on the model-path and prc-path, too.
getModelPath().prependDirectory(MultifileRoot)
# Load the implicit App.prc file.
loadPrcFileData(AppPrcFilename, AppPrc)
# Load any prc files in the root. We have to load them
# explicitly, since the ConfigPageManager can't directly look
# inside the vfs.
for f in vfs.scanDirectory(MultifileRoot):
if f.getFilename().getExtension() == 'prc':
data = f.readFile(True)
loadPrcFileData(f.getFilename().cStr(), data)
# Replace the builtin open and file symbols so user code will get
# our versions by default, which can open and read files out of
# the multifile.
__builtin__.file = file.file
__builtin__.open = file.open
os.listdir = file.listdir
os.walk = file.walk
import main
if hasattr(main, 'main') and callable(main.main):
main.main()
