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Update gcmtool.py
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tmpz23
GitHub
parent
1c9a484bb4
commit
012fbb5195
127
gcmtool.py
127
gcmtool.py
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@ -3,7 +3,7 @@ from pathlib import Path
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import logging
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__version__ = "0.0.8"
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__version__ = "0.0.9"
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__author__ = "rigodron, algoflash, GGLinnk"
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__license__ = "MIT"
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__status__ = "developpement"
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@ -242,25 +242,21 @@ class Gcm:
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else:
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base_path = Path(f"{bootbin.game_code()}-{bootbin.disc_number():02}")
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logging.info(f"unpacking {iso_path} in {base_path}")
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logging.info(f"unpacking \"{iso_path}\" in \"{base_path}\"")
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sys_path = base_path / "sys"
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sys_path.mkdir(parents=True, exist_ok=True)
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with (sys_path / "boot.bin").open("wb") as bootbin_file, \
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(sys_path / "bi2.bin" ).open("wb") as bi2bin_file, \
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(sys_path / "fst.bin").open("wb") as fstbin_file, \
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(sys_path / "apploader.img").open("wb") as apploaderimg_file,\
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(sys_path / "boot.dol").open("wb") as bootdol_file:
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logging.debug(f"{iso_path}(0x0:0x{BootBin.LEN:x}) -> {sys_path / 'boot.bin'}")
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bootbin_file.write(bootbin.data())
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logging.debug(f"{iso_path}(0x440:0x{Gcm.APPLOADER_OFFSET:x}) -> {sys_path / 'bi2.bin'}")
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bi2bin_file.write(bi2bin_data)
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logging.debug(f"{iso_path}(0x{Gcm.APPLOADER_OFFSET:x}:0x{Gcm.APPLOADER_OFFSET + apploader_size:x} -> {sys_path / 'apploader.img'}")
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apploaderimg_file.write(apploaderimg_data)
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logging.debug(f"{iso_path}(0x{fstbin_offset:x}:0x{fstbin_offset + fstbin_len:x}) -> {sys_path / 'fst.bin'}")
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fstbin_file.write(fstbin_data)
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logging.debug(f"{iso_path}(0x{dol_offset:x}:0x{dol_offset + dol_len:x}) -> {sys_path / 'boot.dol'}")
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bootdol_file.write(bootdol_data)
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logging.debug(f"{iso_path}(0x0:0x{BootBin.LEN:x}) -> {sys_path / 'boot.bin'}")
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(sys_path / "boot.bin").write_bytes(bootbin.data())
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logging.debug(f"{iso_path}(0x440:0x{Gcm.APPLOADER_OFFSET:x}) -> {sys_path / 'bi2.bin'}")
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(sys_path / "bi2.bin" ).write_bytes(bi2bin_data)
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logging.debug(f"{iso_path}(0x{Gcm.APPLOADER_OFFSET:x}:0x{Gcm.APPLOADER_OFFSET + apploader_size:x} -> {sys_path / 'apploader.img'}")
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(sys_path / "apploader.img").write_bytes(apploaderimg_data)
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logging.debug(f"{iso_path}(0x{fstbin_offset:x}:0x{fstbin_offset + fstbin_len:x}) -> {sys_path / 'fst.bin'}")
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(sys_path / "fst.bin").write_bytes(fstbin_data)
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logging.debug(f"{iso_path}(0x{dol_offset:x}:0x{dol_offset + dol_len:x}) -> {sys_path / 'boot.dol'}")
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(sys_path / "boot.dol").write_bytes(bootdol_data)
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root_path = base_path / "root"
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root_path.mkdir(exist_ok=True)
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@ -296,43 +292,36 @@ class Gcm:
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fileoffset = int.from_bytes(fstbin_data[i+4:i+8], "big", signed=False)
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filesize = int.from_bytes(fstbin_data[i+8:i+12], "big", signed=False)
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with (currentdir_path / name).open("wb") as new_file:
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iso_file.seek(fileoffset)
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new_file.write( iso_file.read(filesize) )
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iso_file.seek(fileoffset)
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(currentdir_path / name).write_bytes( iso_file.read(filesize) )
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logging.debug(f"{iso_path}(0x{fileoffset:x}:0x{fileoffset + filesize:x}) -> {currentdir_path / name}")
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logging.debug(f"{iso_path}(0x{fileoffset:x}:0x{fileoffset + filesize:x}) -> {currentdir_path / name}")
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def pack(self, folder_path:Path, iso_path:Path = None):
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if iso_path == None:
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iso_path = folder_path.parent / Path(folder_path.name).with_suffix(".iso")
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with iso_path.open("wb") as iso_file, \
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(folder_path / "sys" / "boot.bin").open("rb") as bootbin_file, \
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(folder_path / "sys" / "bi2.bin" ).open("rb") as bi2bin_file, \
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(folder_path / "sys" / "fst.bin").open("rb") as fstbin_file, \
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(folder_path / "sys" / "apploader.img").open("rb") as apploaderimg_file,\
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(folder_path / "sys" / "boot.dol").open("rb") as bootdol_file :
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with iso_path.open("wb") as iso_file:
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logging.debug(f"{folder_path / 'sys' / 'boot.bin'} -> {iso_path}(0x0:0x{BootBin.LEN:x})")
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logging.debug(f"{folder_path / 'sys' / 'bi2.bin'} -> {iso_path}(0x{BootBin.LEN:x}:0x{Gcm.APPLOADER_OFFSET:x})")
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logging.debug(f"{folder_path / 'sys' / 'apploader.img'} -> {iso_path}(0x{Gcm.APPLOADER_OFFSET:x}:0x{Gcm.APPLOADER_OFFSET + (folder_path / 'sys' / 'apploader.img').stat().st_size:x}")
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bootbin = BootBin(bootbin_file.read())
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bootbin = BootBin((folder_path / "sys" / "boot.bin").read_bytes())
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iso_file.write(bootbin.data())
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iso_file.write(bi2bin_file.read())
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iso_file.write(apploaderimg_file.read())
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iso_file.write((folder_path / "sys" / "bi2.bin").read_bytes())
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iso_file.write((folder_path / "sys" / "apploader.img").read_bytes())
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fstbin_offset = bootbin.fstbin_offset()
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fstbin_len = bootbin.fstbin_len()
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if (folder_path / "sys" / "fst.bin").stat().st_size != fstbin_len:
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raise Exception("Invalid fst.bin size in boot.bin offset 0x{BootBin.FSTLEN_OFFSET:x}:0x{BootBin.FSTLEN_OFFSET+4:x}!")
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raise Exception(f"Invalid fst.bin size in boot.bin offset 0x{BootBin.FSTLEN_OFFSET:x}:0x{BootBin.FSTLEN_OFFSET+4:x}!")
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logging.debug(f"{folder_path / 'sys' / 'fst.bin'} -> {iso_path}(0x{fstbin_offset:x}:0x{fstbin_offset + fstbin_len:x})")
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iso_file.seek( fstbin_offset )
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fstbin_data = fstbin_file.read()
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fstbin_data = (folder_path / "sys" / "fst.bin").read_bytes()
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iso_file.write( fstbin_data )
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dol_offset = bootbin.dol_offset()
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logging.debug(f"{folder_path / 'sys' / 'boot.dol'} -> {iso_path}(0x{dol_offset:x}:0x{dol_offset + (folder_path / 'sys' / 'boot.dol').stat().st_size:x})")
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iso_file.seek( dol_offset )
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iso_file.write( bootdol_file.read() )
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iso_file.write( (folder_path / "sys" / "boot.dol").read_bytes() )
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# Now parse fst.bin for writing files in the iso
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dir_id_path = {0: folder_path / "root"}
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@ -363,49 +352,47 @@ class Gcm:
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dir_id_path[id] = currentdir_path
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currentdir_path.mkdir(exist_ok=True)
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else:
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fileoffset = int.from_bytes(fstbin_data[i+4:i+8], "big", signed=False)
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filesize = int.from_bytes(fstbin_data[i+8:i+12], "big", signed=False)
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file_offset = int.from_bytes(fstbin_data[i+4:i+8], "big", signed=False)
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file_len = int.from_bytes(fstbin_data[i+8:i+12], "big", signed=False)
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with (currentdir_path / name).open("rb") as new_file:
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if (currentdir_path / name).stat().st_size != filesize:
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raise Exception(f"Invalid file size : {currentdir_path / name} - use --rebuild-fst before packing files in the iso.")
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logging.debug(f"{currentdir_path / name} -> {iso_path}(0x{fileoffset:x}:0x{fileoffset + filesize:x})")
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iso_file.seek(fileoffset)
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iso_file.write( new_file.read() )
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if (currentdir_path / name).stat().st_size != file_len:
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raise Exception(f"Invalid file size : {currentdir_path / name} - use --rebuild-fst before packing files in the iso.")
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logging.debug(f"{currentdir_path / name} -> {iso_path}(0x{file_offset:x}:0x{file_offset + file_len:x})")
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iso_file.seek(file_offset)
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iso_file.write( (currentdir_path / name).read_bytes() )
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def rebuild_fst(self, folder_path:Path, align:int):
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root_path = folder_path / "root"
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sys_path = folder_path / "sys"
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with (sys_path / "boot.bin").open("rb+") as bootbin_file:
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dol_offset = align_offset(Gcm.APPLOADER_OFFSET + (sys_path / "apploader.img").stat().st_size, align)
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logging.info(f"Patching sys/boot.bin offset 0x{BootBin.DOLOFFSET_OFFSET:x} with new dol offset (0x{dol_offset:x})")
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bootbin = BootBin(bootbin_file.read())
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bootbin.set_dol_offset(dol_offset)
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fst_offset = align_offset(dol_offset + (sys_path / "boot.dol").stat().st_size, align)
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logging.info(f"Patching sys/boot.bin offset 0x{BootBin.FSTOFFSET_OFFSET:x} with new fst offset (0x{fst_offset:x})")
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bootbin.set_fst_offset(fst_offset)
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fst_tree = FstTree(root_path, fst_offset, align=align)
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# Sorting paths approach original fst sort but specials chars are after and not before chars
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path_list = sorted([path for path in root_path.glob('**/*')], key=lambda s:Path(str(s).upper()))
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for path in path_list:
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fst_tree.add_node_by_path(path)
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logging.debug(fst_tree)
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dol_offset = align_offset(Gcm.APPLOADER_OFFSET + (sys_path / "apploader.img").stat().st_size, align)
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logging.info(f"Patching sys/boot.bin offset 0x{BootBin.DOLOFFSET_OFFSET:x} with new dol offset (0x{dol_offset:x})")
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bootbin = BootBin((sys_path / "boot.bin").read_bytes())
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bootbin.set_dol_offset(dol_offset)
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fst_offset = align_offset(dol_offset + (sys_path / "boot.dol").stat().st_size, align)
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logging.info(f"Patching sys/boot.bin offset 0x{BootBin.FSTOFFSET_OFFSET:x} with new fst offset (0x{fst_offset:x})")
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bootbin.set_fst_offset(fst_offset)
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fst_tree = FstTree(root_path, fst_offset, align=align)
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fst_path = sys_path / "fst.bin"
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with fst_path.open("wb") as fstbin_file:
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logging.info("Writing fst in sys/fst.bin")
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fstbin_file.write( fst_tree.get_fst() )
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# Sorting paths approach original fst sort, but in original fst specials chars are after and not before chars
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path_list = sorted([path for path in root_path.glob('**/*')], key=lambda s:Path(str(s).upper()))
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for path in path_list:
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fst_tree.add_node_by_path(path)
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logging.debug(fst_tree)
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fst_size = fst_path.stat().st_size
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logging.info(f"Patching sys/boot.bin offset 0x{BootBin.FSTLEN_OFFSET:x} with new fst size (0x{fst_size:x})")
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bootbin.set_fst_len(fst_size)
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logging.info(f"Patching sys/boot.bin offset 0x{BootBin.MAXFSTLEN_OFFSET:x} with new max fst size (0x{fst_size:x})")
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bootbin.set_max_fst_len(fst_size)
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fst_path = sys_path / "fst.bin"
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bootbin_file.seek(0)
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bootbin_file.write(bootbin.data())
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logging.info("Writing fst in sys/fst.bin")
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fst_path.write_bytes( fst_tree.get_fst() )
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fst_size = fst_path.stat().st_size
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logging.info(f"Patching sys/boot.bin offset 0x{BootBin.FSTLEN_OFFSET:x} with new fst size (0x{fst_size:x})")
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bootbin.set_fst_len(fst_size)
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logging.info(f"Patching sys/boot.bin offset 0x{BootBin.MAXFSTLEN_OFFSET:x} with new max fst size (0x{fst_size:x})")
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bootbin.set_max_fst_len(fst_size)
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(sys_path / "boot.bin").write_bytes(bootbin.data())
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def get_argparser():
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@ -439,7 +426,7 @@ if __name__ == '__main__':
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logging.info("### Pack in new GCM iso")
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if(p_output == Path(".")):
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p_output = Path(p_input.with_suffix(".iso"))
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logging.info(f"packing folder {p_input} in {p_output}")
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logging.info(f"packing folder \"{p_input}\" in \"{p_output}\"")
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gcm.pack( p_input, p_output )
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elif args.unpack:
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logging.info("### Unpack GCM iso in new folder")
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