182 lines
6.6 KiB
Python
Executable File
182 lines
6.6 KiB
Python
Executable File
#!/usr/bin/env python3
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from functools import lru_cache
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from os import path
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from shutil import copyfile
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import machfs
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import machfs
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import macresources
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import os
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import re
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import shutil
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@lru_cache()
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def get_resource_fork(version):
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with open(path.join(SampleSystems, version) + '.rdump', 'rb') as f:
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return list(macresources.parse_rez_code(f.read()))
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def get_resource(version, rtype, rid):
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if isinstance(rtype, str): rtype = rtype.encode('mac_roman')
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for resource in get_resource_fork(version):
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if (resource.type, resource.id) == (rtype, rid):
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return resource
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raise ValueError('not found: %r %r %r' % (version, rtype, rid))
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# Some resource types can "own" other resources, which should be moved with them
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def does_x_own_y(xtype, xid, yid):
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types = [b'DRVR', b'WDEF', b'MDEF', b'CDEF', b'PDEF', b'PACK']
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if yid & (1 << 15) and yid & (1 << 14):
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if xtype in types and types.index(xtype) == (yid >> 11) & 7:
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if (yid >> 5) & 0x3F == xid:
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return True
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return False
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parent = path.dirname(__file__)
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SampleSystems = path.join(parent, 'SampleSystems')
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TestBed = path.join(parent, 'TestBed')
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TestImages = path.join(parent, 'TestImages.tmp')
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os.makedirs(TestImages, exist_ok=True)
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with open(path.join(TestImages, 'Test-Blank.dsk'), 'wb') as f:
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for i in range(50):
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f.write(bytes(1024 * 1024))
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base_versions = sorted(os.listdir(SampleSystems))
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base_versions = [v for v in base_versions if re.match(r'^\d.\d.\d$', v)]
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base_versions = [v for v in base_versions if int(v.replace('.', '')) < 810]
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for base_version in base_versions:
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print('\n=== Patching System ' + base_version + ' ===')
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src_system = path.join(SampleSystems, base_version)
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dest_dir = path.join(TestImages, 'Test-' + base_version)
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dest_disk = dest_dir + '.dsk'
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dest_system = path.join(dest_dir, 'System Folder', 'System')
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try:
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shutil.rmtree(dest_dir)
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except FileNotFoundError:
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pass
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shutil.copytree(TestBed, dest_dir)
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# Copy the sample system, except the data fork
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for suffix in ['', '.idump']:
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copyfile(src_system + suffix, dest_system + suffix)
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# Get its resource fork, and copy it to another list so we don't ruin our cache
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the_resources = get_resource_fork(base_version)
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def place_resource(resource):
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the_len = len(the_resources)
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the_resources[:] = [r for r in the_resources if (r.type, r.id) != (resource.type, resource.id)]
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# if len(the_resources) < the_len:
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# print(' replaced %s %s' % (repr(resource.type)[1:], resource.id))
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the_resources.append(resource)
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def copy_resource_and_subresources(version, rtype, rid):
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if isinstance(rtype, str): rtype = rtype.encode('mac_roman')
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for resource in get_resource_fork(version):
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if (resource.type, resource.id) == (rtype, rid):
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print(' Copying %s\'s %s %s' % (version, repr(resource.type)[1:], resource.id))
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place_resource(resource)
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break
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else:
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raise ValueError('not found: %r %r %r' % (version, rtype, rid))
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n_extra = 0
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for resource in get_resource_fork(version):
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if does_x_own_y(rtype, rid, resource.id):
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# print('+ sub-resource %s %s' % (repr(resource.type)[1:], resource.id))
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place_resource(resource)
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n_extra += 1
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if n_extra: print(' + %d owned resources' % n_extra)
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# Use ALL of these:
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print('These are the main HFS+ resources:')
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copy_resource_and_subresources('8.1.0', 'ptch', -20217) # HFS+ patch
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copy_resource_and_subresources('8.1.0', 'boot', 22460) # Seems to be a gatekeeper/bootloader??
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print('Disk Cache patch:')
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copy_resource_and_subresources('8.1.0', 'ptch', 41) # Disk Cache patch
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print('Disk Init pack and things it uses:')
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copy_resource_and_subresources('8.1.0', 'PACK', 2) # Disk Init (brings in several "owned" resources)
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copy_resource_and_subresources('8.1.0', 'p2u#', 0) # Referenced by ptch, "Text Encodings"...
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copy_resource_and_subresources('8.1.0', 'STR#', -20574) # "also known as" for various formats
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copy_resource_and_subresources('8.1.0', 'STR#', -20573) # "Where_have_all_my_files_gone?"
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copy_resource_and_subresources('8.1.0', 'STR#', -20483) # "There is a problem with the disk"
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copy_resource_and_subresources('8.1.0', 'TEXT', -20574) # "This is the localized version of the HFSPlus Wrapper Read Me."
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copy_resource_and_subresources('8.1.0', 'TEXT', -20573) # Wrapper readme contents
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# Use ONE of these to chain load 'ptch' -20217 (not required on 7.6.0 and later):
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MOVEW_B107_D0 = b'\x30\x3C\xB1\x07'
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if MOVEW_B107_D0 not in get_resource(base_version, 'boot', 2) and MOVEW_B107_D0 not in get_resource(base_version, 'boot', 3):
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# Mac OS 9 actually loads ptch -20217 in boot 2, which is more elegant, because unlike boot 3,
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# boot 2 is guaranteed not to be run from a separate gibbly
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# System 7.5.5 needs boot 3 instead, not sure why...
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print('Pre-7.6 needs some help to load ptch -20217:')
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copy_resource_and_subresources('9.2.2', 'boot', 2)
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# copy_resource_and_subresources('8.1.0', 'boot', 3)
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# copy_resource_and_subresources('DT_8.1_PPC', 'boot', 3)
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print('Rudimentary 68k support on Basilisk II\'s Quadra 900:')
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# These 3 resources have been identified by bisecting the different resources between 8.0 and 8.1
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# Use all of these for 68k, currently only Basilisk II's Quadra 900 (only works on 7.6.0/7.6.1/8.0):
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# (Still unclear what these do -- next step is to reverse-engineer the gusd/gtbl/gpch mechanism)
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# HFS+ not loaded if it is not changed (causes a crash on its own -- requires BOTH the below resources)
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copy_resource_and_subresources('8.1.0', 'gtbl', 6) # diff contents
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# Crash if it is not changed: illegal instruction (harmless on its own)
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copy_resource_and_subresources('8.1.0', 'gpch', 750) # diff contents
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# Error Type 41 if not present (harmless on its own)
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copy_resource_and_subresources('8.1.0', 'ptch', 42) # diff contents
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# Lastly, don't forget the Text Encoding Converter extension is essential to make this work
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the_resources.sort(key=lambda r: (r.type.decode('mac_roman'), r.id))
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with open(dest_system + '.rdump', 'wb') as f:
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f.write(macresources.make_rez_code(the_resources, ascii_clean=True))
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vol = machfs.Volume()
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vol.name = 'Test-' + base_version
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vol.read_folder(dest_dir, date=0xC0000000)
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vol = vol.write(10 * 1024 * 1024)
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with open(dest_disk, 'wb') as f:
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f.write(vol)
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