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"""Create an applet from a Python script.
This puts up a dialog asking for a Python source file ('TEXT').
The output is a file with the same name but its ".py" suffix dropped.
It is created by copying an applet template and then adding a 'PYC '
resource named __main__ containing the compiled, marshalled script.
"""
import sys
import string
import os
import marshal
import imp
import macfs
import MacOS
from Res import *
# .pyc file (and 'PYC ' resource magic number)
MAGIC = imp.get_magic()
# Template file (searched on sys.path)
TEMPLATE = "PythonApplet"
# Specification of our resource
RESTYPE = 'PYC '
RESNAME = '__main__'
# OpenResFile mode parameters
READ = 1
WRITE = 2
def main():
# Find the template
# (there's no point in proceeding if we can't find it)
for p in sys.path:
template = os.path.join(p, TEMPLATE)
try:
tmpl = open(template, "rb")
break
except IOError:
continue
else:
# XXX Ought to put up a dialog
print "Template not found. Exit."
return
# Ask for source text
srcfss, ok = macfs.StandardGetFile('TEXT')
if not ok:
tmpl.close()
return
filename = srcfss.as_pathname()
# Read the source and compile it
# (there's no point overwriting the destination if it has a syntax error)
fp = open(filename)
text = fp.read()
fp.close()
try:
code = compile(text, filename, "exec")
except (SyntaxError, EOFError):
print "Syntax error in script"
tmpl.close()
return
# Set the destination file name
if string.lower(filename[-3:]) == ".py":
destname = filename[:-3]
else:
destname = filename + ".applet"
# Copy the data from the template (creating the file as well)
dest = open(destname, "wb")
data = tmpl.read()
if data:
dest.write(data)
dest.close()
tmpl.close()
# Copy the creator and type of the template to the destination
ctor, type = MacOS.GetCreatorAndType(template)
MacOS.SetCreatorAndType(destname, ctor, type)
# Open the input and output resource forks
input = FSpOpenResFile(template, READ)
try:
output = FSpOpenResFile(destname, WRITE)
except MacOS.Error:
print "Creating resource fork..."
CreateResFile(destname)
output = FSpOpenResFile(destname, WRITE)
# Copy the resources from the template,
# except a 'PYC ' resource named __main__
UseResFile(input)
ntypes = Count1Types()
for itype in range(1, 1+ntypes):
type = Get1IndType(itype)
nresources = Count1Resources(type)
for ires in range(1, 1+nresources):
res = Get1IndResource(type, ires)
id, type, name = res.GetResInfo()
if (type, name) == (RESTYPE, RESNAME):
continue # Don't copy __main__ from template
size = res.SizeResource()
attrs = res.GetResAttrs()
print id, type, name, size, hex(attrs)
res.LoadResource()
res.DetachResource()
UseResFile(output)
try:
res2 = Get1Resource(type, id)
except MacOS.Error:
res2 = None
if res2:
print "Overwriting..."
res2.RmveResource()
res.AddResource(type, id, name)
#res.SetResAttrs(attrs)
res.WriteResource()
UseResFile(input)
CloseResFile(input)
# Make sure we're manipulating the output resource file now
UseResFile(output)
# Delete any existing 'PYC 'resource named __main__
try:
res = Get1NamedResource(RESTYPE, RESNAME)
res.RmveResource()
except Error:
pass
# Create the raw data for the resource from the code object
data = marshal.dumps(code)
del code
data = (MAGIC + '\0\0\0\0') + data
# Create the resource and write it
id = 0
while id < 128:
id = Unique1ID(RESTYPE)
res = Resource(data)
res.AddResource(RESTYPE, id, RESNAME)
res.WriteResource()
res.ReleaseResource()
# Close the resource file
CloseResFile(output)
if __name__ == '__main__':
main()
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