cpython/Mac/Lib/buildtools.py

291 lines
7.2 KiB
Python

"""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():
"""Locate the applet template along sys.path"""
for p in sys.path:
template = os.path.join(p, TEMPLATE)
try:
template, d1, d2 = macfs.ResolveAliasFile(template)
break
except (macfs.error, ValueError):
continue
else:
raise BuildError, "Template %s not found on sys.path" % `TEMPLATE`
template = template.as_pathname()
return template
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.CreateResFile(destname)
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
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