"""tools for BuildApplet and BuildApplication"""
import sys
import os
import string
import imp
import marshal
import macfs
import Res
import MACFS
import MacOS
import macostools
import EasyDialogs
BuildError = "BuildError"
DEBUG=1
# .pyc file (and 'PYC ' resource magic number)
MAGIC = imp.get_magic()
# Template file (searched on sys.path)
TEMPLATE = "PythonInterpreter"
# Specification of our resource
RESTYPE = 'PYC '
RESNAME = '__main__'
# A resource with this name sets the "owner" (creator) of the destination
# It should also have ID=0. Either of these alone is not enough.
OWNERNAME = "owner resource"
# Default applet creator code
DEFAULT_APPLET_CREATOR="Pyta"
# OpenResFile mode parameters
READ = 1
WRITE = 2
def findtemplate(template=None):
"""Locate the applet template along sys.path"""
if not template:
template=TEMPLATE
for p in sys.path:
file = os.path.join(p, template)
try:
file, d1, d2 = macfs.ResolveAliasFile(file)
break
except (macfs.error, ValueError):
continue
else:
raise BuildError, "Template %s not found on sys.path" % `template`
file = file.as_pathname()
return file
def process(template, filename, output, copy_codefragment):
if DEBUG:
progress = EasyDialogs.ProgressBar("Processing %s..."%os.path.split(filename)[1], 120)
progress.label("Compiling...")
else:
progress = None
# 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):
raise BuildError, "Syntax error in script %s" % `filename`
# Set the destination file name
if string.lower(filename[-3:]) == ".py":
destname = filename[:-3]
rsrcname = destname + '.rsrc'
else:
destname = filename + ".applet"
rsrcname = filename + '.rsrc'
if output:
destname = output
# Try removing the output file
try:
os.remove(destname)
except os.error:
pass
process_common(template, progress, code, rsrcname, destname, 0, copy_codefragment)
def update(template, filename, output):
if DEBUG:
progress = EasyDialogs.ProgressBar("Updating %s..."%os.path.split(filename)[1], 120)
else:
progress = None
if not output:
output = filename + ' (updated)'
# Try removing the output file
try:
os.remove(output)
except os.error:
pass
process_common(template, progress, None, filename, output, 1, 1)
def process_common(template, progress, code, rsrcname, destname, is_update, copy_codefragment):
# Create FSSpecs for the various files
template_fss = macfs.FSSpec(template)
template_fss, d1, d2 = macfs.ResolveAliasFile(template_fss)
dest_fss = macfs.FSSpec(destname)
# Copy data (not resources, yet) from the template
if DEBUG:
progress.label("Copy data fork...")
progress.set(10)
if copy_codefragment:
tmpl = open(template, "rb")
dest = open(destname, "wb")
data = tmpl.read()
if data:
dest.write(data)
dest.close()
tmpl.close()
del dest
del tmpl
# Open the output resource fork
if DEBUG:
progress.label("Copy resources...")
progress.set(20)
try:
output = Res.FSpOpenResFile(dest_fss, WRITE)
except MacOS.Error:
Res.FSpCreateResFile(destname, '????', 'APPL', MACFS.smAllScripts)
output = Res.FSpOpenResFile(dest_fss, WRITE)
# Copy the resources from the target specific resource template, if any
typesfound, ownertype = [], None
try:
input = Res.FSpOpenResFile(rsrcname, READ)
except (MacOS.Error, ValueError):
pass
if DEBUG:
progress.inc(50)
else:
if is_update:
skip_oldfile = ['cfrg']
else:
skip_oldfile = []
typesfound, ownertype = copyres(input, output, skip_oldfile, 0, progress)
Res.CloseResFile(input)
# Check which resource-types we should not copy from the template
skiptypes = []
if 'vers' in typesfound: skiptypes.append('vers')
if 'SIZE' in typesfound: skiptypes.append('SIZE')
if 'BNDL' in typesfound: skiptypes = skiptypes + ['BNDL', 'FREF', 'icl4',
'icl8', 'ics4', 'ics8', 'ICN#', 'ics#']
if not copy_codefragment:
skiptypes.append('cfrg')
## skipowner = (ownertype <> None)
# Copy the resources from the template
input = Res.FSpOpenResFile(template_fss, READ)
dummy, tmplowner = copyres(input, output, skiptypes, 1, progress)
Res.CloseResFile(input)
## if ownertype == None:
## raise BuildError, "No owner resource found in either resource file or template"
# Make sure we're manipulating the output resource file now
Res.UseResFile(output)
if ownertype == None:
# No owner resource in the template. We have skipped the
# Python owner resource, so we have to add our own. The relevant
# bundle stuff is already included in the interpret/applet template.
newres = Res.Resource('\0')
newres.AddResource(DEFAULT_APPLET_CREATOR, 0, "Owner resource")
ownertype = DEFAULT_APPLET_CREATOR
if code:
# Delete any existing 'PYC ' resource named __main__
try:
res = Res.Get1NamedResource(RESTYPE, RESNAME)
res.RemoveResource()
except Res.Error:
pass
# Create the raw data for the resource from the code object
if DEBUG:
progress.label("Write PYC resource...")
progress.set(120)
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 = Res.Unique1ID(RESTYPE)
res = Res.Resource(data)
res.AddResource(RESTYPE, id, RESNAME)
attrs = res.GetResAttrs()
attrs = attrs | 0x04 # set preload
res.SetResAttrs(attrs)
res.WriteResource()
res.ReleaseResource()
# Close the output file
Res.CloseResFile(output)
# Now set the creator, type and bundle bit of the destination
dest_finfo = dest_fss.GetFInfo()
dest_finfo.Creator = ownertype
dest_finfo.Type = 'APPL'
dest_finfo.Flags = dest_finfo.Flags | MACFS.kHasBundle | MACFS.kIsShared
dest_finfo.Flags = dest_finfo.Flags & ~MACFS.kHasBeenInited
dest_fss.SetFInfo(dest_finfo)
macostools.touched(dest_fss)
if DEBUG:
progress.label("Done.")
# Copy resources between two resource file descriptors.
# skip a resource named '__main__' or (if skipowner is set) with ID zero.
# Also skip resources with a type listed in skiptypes.
#
def copyres(input, output, skiptypes, skipowner, progress=None):
ctor = None
alltypes = []
Res.UseResFile(input)
ntypes = Res.Count1Types()
progress_type_inc = 50/ntypes
for itype in range(1, 1+ntypes):
type = Res.Get1IndType(itype)
if type in skiptypes:
continue
alltypes.append(type)
nresources = Res.Count1Resources(type)
progress_cur_inc = progress_type_inc/nresources
for ires in range(1, 1+nresources):
res = Res.Get1IndResource(type, ires)
id, type, name = res.GetResInfo()
lcname = string.lower(name)
if lcname == OWNERNAME and id == 0:
if skipowner:
continue # Skip this one
else:
ctor = type
size = res.size
attrs = res.GetResAttrs()
if DEBUG and progress:
progress.label("Copy %s %d %s"%(type, id, name))
progress.inc(progress_cur_inc)
res.LoadResource()
res.DetachResource()
Res.UseResFile(output)
try:
res2 = Res.Get1Resource(type, id)
except MacOS.Error:
res2 = None
if res2:
if DEBUG and progress:
progress.label("Overwrite %s %d %s"%(type, id, name))
res2.RemoveResource()
res.AddResource(type, id, name)
res.WriteResource()
attrs = attrs | res.GetResAttrs()
res.SetResAttrs(attrs)
Res.UseResFile(input)
return alltypes, ctor
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