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Airkiver.py
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Airkiver.py
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# MIT License
#
# Copyright (c) 2023 Alun Jones
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
# Import Libs
import zlib, os, sys
from struct import pack
# Create Memory Buffers
filetable_bytes = bytearray()
archive_bytes = bytearray()
# File Array
allfiles = []
# Begin Writing File System and File Table
filetable_bytes.extend(bytearray("Airkive\0",'utf-8')) # header
archive_bytes.extend(bytearray("Airkive\0",'utf-8')) # header
# Write FT Version
filetable_bytes.extend(pack('f', 1.1))
# Output Filename
outFilename = os.path.splitext(sys.argv[1])[0]
# Ignore Files
ignore_files = [".DS_Store", "Airkiver.py", outFilename + ".ft", outFilename + ".fs"]
# Options
compressionType = 1
encryptionKey = ""
# Get Compression Type (Default is "Smart Compression")
if len(sys.argv) >= 3:
if sys.argv[2] == "--noCompression":
compressionType = 0
elif sys.argv[2] == "--smartCompression":
compressionType = 1
elif sys.argv[2] == "--forceCompression":
compressionType = 2
#else:
#encryptionKey = sys.argv[2]
#encryptCRC = zlib.crc32(bytearray(encryptionKey,'utf-8'))
# File Start Offset (Starts at the length of archive_bytes)
offset = len(archive_bytes)
# Start Directory Walk in "\datafiles"
walk_dir = os.getcwd() + "/datafiles"
print(walk_dir)
for root, subdirs, files in os.walk(walk_dir):
if root[-1] != "/":
root = root + "/"
folderpath = root.replace(walk_dir + "/", "")
print('- directory "%s"' % (folderpath))
#for subdir in subdirs:
#print('\t- subdirectory ' + subdir)
for filename in files:
file_path = os.path.join(folderpath, filename)
print('\t- file "%s" (full path: "%s")' % (filename, file_path))
if (filename not in ignore_files):
allfiles.append(walk_dir + "/" + file_path)
# Begin Packing Files
print("Packing:")
# Write File Count
filetable_bytes.extend(pack('i', len(allfiles)))
for file in allfiles:
# Open Source File
f = open(file, "rb")
# Make Absolute Paths Relative
filename = file.replace(walk_dir + "/", "")
# Debug Print
print('\t- packing file "%s" (full path: "%s")' % (filename, file))
# Get Source File Contents
content = f.read()
# Write Offset and Uncompressed Size in FT
filetable_bytes.extend(pack('i', offset))
filetable_bytes.extend(pack('i', len(content)))
# Grab the CRC32 of the Source File
crc32 = zlib.crc32(content)
# Compress the File Using ZLIB (GameMaker use Compression Level 6)
if compressionType == 2 or (compressionType == 1 and len(content) > 0x200):
content = zlib.compress(content, 6)
# Write Compressed Size, CRC32, Target Archive, Filename and Content to Respective Files
filetable_bytes.extend(pack('i', len(content)))
filetable_bytes.extend(pack('I', crc32))
filetable_bytes.extend(bytearray(outFilename+".fs\0",'utf-8'))
filetable_bytes.extend(bytearray(filename+"\0",'utf-8'))
archive_bytes.extend(content)
# Increase Offset
offset += len(content)
# Save Files
with open("datafiles/" + outFilename + ".ft", "wb") as file:
file.write(filetable_bytes)
with open("datafiles/" + outFilename + ".fs", "wb") as file:
file.write(archive_bytes)