Update version in PKGBUILD

.gitignore

@@ -4,3 +4,5 @@
 /build/
 /dist/
 /vntools.egg-info/
+/.idea/
+/.vscode/

PKGBUILD

@@ -3,7 +3,7 @@
 
 _pkgname=VNTools
 pkgname=vntools-git
-pkgver=2.0.e5bf961
+pkgver=2.1.ab883708
 pkgrel=1
 pkgdesc="Collection of tools used by VienDesu! Porting Team"
 arch=("any")
@@ -16,7 +16,7 @@ sha256sums=("SKIP")
 
 pkgver() {
   cd "${srcdir}/${_pkgname}"
-  printf "2.0.%s" "$(git rev-parse --short HEAD)"
+  printf "2.1.%s" "$(git rev-parse --short HEAD)"
 }
 
 build() {

build.bat

@@ -12,6 +12,8 @@ python -m nuitka --jobs=%NUMBER_OF_PROCESSORS% --output-dir=output --follow-impo
 move /Y output\unrenapk.exe output\bin
 python -m nuitka --jobs=%NUMBER_OF_PROCESSORS% --output-dir=output --follow-imports --onefile --output-filename=vnds2renpy vnds2renpy || goto :exit
 move /Y output\vnds2renpy.exe output\bin
+python -m nuitka --jobs=%NUMBER_OF_PROCESSORS% --output-dir=output --follow-imports --onefile --output-filename=rpatool rpatool || goto :exit
+move /Y output\rpatool.exe output\bin
 echo "Done! You can get binaries into output\bin directory"
 
 :venv_error

build.sh

@@ -21,4 +21,6 @@ python3 -m nuitka "${jobs}" --output-dir=output --onefile --follow-imports --out
 mv output/unrenapk output/bin
 python3 -m nuitka "${jobs}" --output-dir=output --onefile --follow-imports --output-filename=vnds2renpy vnds2renpy
 mv output/vnds2renpy output/bin
+python3 -m nuitka "${jobs}" --output-dir=output --onefile --follow-imports --output-filename=rpatool rpatool
+mv output/rpatool output/bin
 echo "Done! You can get binaries into output/bin directory"

pyproject.toml

@@ -5,22 +5,24 @@ requires = [
 build-backend = "setuptools.build_meta"
 
 [tool.setuptools]
-packages = ["vnrecode", "unrenapk", "vnds2renpy"]
+packages = ["vnrecode", "unrenapk", "vnds2renpy", "rpatool"]
 include-package-data = true
 
 [tool.setuptools.package-data]
 'vnrecode' = ['*.py']
 'vnds2renpy' = ['*.py']
 'unrenapk' = ['*.py']
+'rpatool' = ['*.py']
 
 [project.scripts]
 vnrecode = "vnrecode.__main__:init"
 vnds2renpy = "vnds2renpy.__main__:main"
 unrenapk = "unrenapk.application:launch"
+rpatool = "rpatool.rpatool:main"
 
 [project]
 name = "vntools"
-version = "2.0-dev"
+version = "2.1-dev"
 requires-python = ">= 3.11"
 dependencies = [
     "Pillow>=10.3.0",

rpatool/README.md

@@ -0,0 +1,124 @@
+rpatool
+=======
+
+This is modified version of a [rpatool](https://github.com/shizmob/rpatool) by [shizmob](https://github.com/shizmob).
+
+This is a simple tool allowing you to create, modify and extract Ren'Py Archive (.rpa/.rpi) files.
+Currently, only writing to RPAv2/RPAv3 archives is supported.
+
+Usage
+-----
+    rpatool [-l|-x|-c|-d|-a] [-o OUTFILE] [-2] [-3] [-k KEY]
+            [-p COUNT] [-h] [-v] [-V]
+            ARCHIVE [FILE [FILE ...]]
+
+
+    positional arguments:
+      ARCHIVE               The Ren'py archive file to operate on
+      FILE                  Zero or more files to operate on
+    
+    actions:
+      -l, --list            List files in archive ARCHIVE
+      -x, --extract         Extract FILEs from ARCHIVE
+      -c, --create          Creative ARCHIVE from FILEs
+      -d, --delete          Delete FILEs from ARCHIVE
+      -a, --append          Append FILEs to ARCHIVE
+    
+    optional arguments:
+      -o OUTFILE, --outfile OUTFILE
+                            An alternative output archive file when appending to or
+                            deleting from archives, or output directory when extracting.
+      -2, --two             Use the RPAv2 format for creating/appending to
+                            archives
+      -3, --three           Use the RPAv3 format for creating/appending to
+                            archives (default)
+      -k KEY, --key KEY     The obfuscation key used for creating RPAv3 archives 
+                            (default: 0xDEADBEEF)
+      -p COUNT, --padding COUNT
+                            The maximum number of bytes of padding to add between
+                            files (default: 0)
+      --all                 If specified, extracts all .rpa archives in the current directory
+      -h, --help            Print this help and exit
+      -v, --verbose         Be a bit more verbose while performing operations
+      -V, --version         Show version information
+    
+    The FILE argument can optionally be in ARCHIVE=REAL format, mapping a file in
+    the archive file system to a file on your real file system. An example of
+    this is: rpatool -x test.rpa script.rpyc=/home/foo/test.rpyc
+
+Examples
+--------
+    rpatool -x foo.rpa
+Will extract every file from `foo.rpa`into the current directory, making subdirectories when necessary.
+
+    rpatool -o output -x foo.rpa script.rpyc ui.png
+Will extract the files `script.rpyc` and `ui.png` from `foo.rpa` into the directory `output`.
+
+    rpatool -c bar.rpa test.jpg script.rpy sprites
+Will create the archive `bar.rpa`, containing the files `test.jpg`, `script.rpy` and the directory `sprites`.
+
+    rpatool -p 25 -k 12345 -c bar.rpa movies=C:\projects\vn\movies
+Will create the archive `bar.rpa` with the obfuscation key `0x12345` and maximum padding of `25`, taking files from `C:\projects\vn\movies` and placing them in the archive folder `movies`.
+
+    rpatool -l baz.rpa
+Will list all files in the archive `baz.rpa`.
+
+    rpatool -v -a foo.rpa sprites=sprites_new
+Will add all files from the directory `sprites_new` to the directory `sprites` in the archive, giving more information about what it's doing.
+
+    rpatool -o bar_new.rpa -d bar.rpa foo.jpg
+Will remove the file `foo.jpg` from the archive `bar.rpa`, storing the result archive in `bar_new.rpa`.
+
+    rpatool -all game/
+Will extract all the files from all .rpa archives in a `game/` folder.
+
+API
+---
+`rpatool` can also be included in any other project (following the license conditions, of course) to provide the `RenPyArchive` class.
+A small overview:
+
+    RenPyArchive([file = None], [version = 3], [padlength = 0], [key = 0xDEADBEEF], [verbose = False])
+The constructor, which will optionally load an archive file.
+
+`file`: the archive file to open. If None, no archive will be attempted to open.
+
+`version`: the archive format version used to save the archive when `RenPyArchive.save([file])` is called. Default: 3
+
+`padlength`: the maximum number of bytes of padding to put between files when saving. Default: 0
+
+`key`: the obfuscation key used when saving RPAv3 archives. Default: 0xDEADBEEF
+
+`verbose`: print info on what we are doing to the command line. Default: False
+
+    RenPyArchive.load(filename)
+Loads an archive file from `filename`. Will raise an `IOError` if the file can't be accessed, or a `ValueError` if the file is not detected as a Ren'Py archive.
+
+    RenPyArchive.save([filename])
+Save the archive to `filename`. Will raise `ValueError` if the filename isn't given with `filename`, nor previously defined, or an `IOError` if it couldn't save the file.
+    
+    RenPyArchive.list()
+Give a list of all filenames currently in the archive.
+
+    RenPyArchive.has_file(filename)
+Returns True if `filename` is found in the archive, False otherwhise.
+
+    RenPyArchive.add(filename, content)
+Add a file to the archive with file `filename` and contents `content`. Will raise a `ValueError` if the filename already exists in the archive.
+
+    RenPyArchive.change(filename, content)
+Change the contents of a current file in the archive. Will raise an `IOError` if the file isn't known in the archive.
+
+    RenPyArchive.remove(filename)
+Remove `filename` from the archive. Will raise an `IOError` if the filename isn't known in the archive.
+
+    RenPyArchive.read(filename)
+Read and return the content of file `filename` in the archive. Will raise an `IOError` if the filename isn't known in the archive.
+
+Disclaimer
+----------
+This tool is intended for use with files on which the authors allowed modification of and/or extraction from ONLY and the unpermitted use on files where such consent was not given is highly discouraged, and most likely a license violation as well.
+Support requests for help with dealing with such files will not be answered.
+
+Credits
+-------
+Credits for the creation of the Ren'Py archive format and the reference code in Ren'Py go to renpytom.

rpatool/__main__.py

@@ -0,0 +1,6 @@
+#!/usr/bin/env python3
+
+from rpatool import rpatool
+
+if __name__ == '__main__':
+    rpatool.main()

rpatool/rpatool.py

@@ -0,0 +1,493 @@
+#!/usr/bin/env python3
+
+from __future__ import print_function
+import sys
+import os
+import codecs
+import errno
+import random
+try:
+    import pickle5 as pickle
+except:
+    import pickle
+    if sys.version_info < (3, 8):
+        print('warning: pickle5 module could not be loaded and Python version is < 3.8,', file=sys.stderr)
+        print('         newer Ren\'Py games may fail to unpack!', file=sys.stderr)
+        if sys.version_info >= (3, 5):
+            print('         if this occurs, fix it by installing pickle5:', file=sys.stderr)
+            print('             {} -m pip install pickle5'.format(sys.executable), file=sys.stderr)
+        else:
+            print('         if this occurs, please upgrade to a newer Python (>= 3.5).', file=sys.stderr)
+        print(file=sys.stderr)
+
+if sys.version_info[0] >= 3: # Python 3
+    def _unicode(text):
+        return text
+
+    def _printable(text):
+        return text
+
+    def _unmangle(data):
+        if type(data) == bytes:
+            return data
+        else:
+            return data.encode('latin1')
+
+    def _unpickle(data):
+        # Specify latin1 encoding to prevent raw byte values from causing an ASCII decode error.
+        return pickle.loads(data, encoding='latin1')
+
+elif sys.version_info[0] == 2: # Python 2
+    def _unicode(text):
+        if isinstance(text, unicode): # You can ignore 'Unresolved reference', because you never hit this block actually
+            return text
+        return text.decode('utf-8')
+
+    def _printable(text):
+        return text.encode('utf-8')
+
+    def _unmangle(data):
+        return data
+
+    def _unpickle(data):
+        return pickle.loads(data)
+
+class RenPyArchive:
+    file = None
+    handle = None
+
+    files = {}
+    indexes = {}
+
+    version = None
+    padlength = 0
+    key = None
+    verbose = False
+
+    RPA2_MAGIC = 'RPA-2.0 '
+    RPA3_MAGIC = 'RPA-3.0 '
+    RPA3_2_MAGIC = 'RPA-3.2 '
+
+    # For backward compatibility, otherwise Python3-packed archives won't be read by Python2
+    PICKLE_PROTOCOL = 2
+
+    def __init__(self, file=None, version=3, padlength=0, key=0xDEADBEEF, verbose=False):
+        self.padlength = padlength
+        self.key = key
+        self.verbose = verbose
+
+        if file is not None:
+            self.load(file)
+        else:
+            self.version = version
+
+    def __del__(self):
+        if self.handle is not None:
+            self.handle.close()
+
+    # Determine archive version.
+    def get_version(self):
+        self.handle.seek(0)
+        magic = self.handle.readline().decode('utf-8')
+
+        if magic.startswith(self.RPA3_2_MAGIC):
+            return 3.2
+        elif magic.startswith(self.RPA3_MAGIC):
+            return 3
+        elif magic.startswith(self.RPA2_MAGIC):
+            return 2
+        elif self.file.endswith('.rpi'):
+            return 1
+
+        raise ValueError('the given file is not a valid Ren\'Py archive, or an unsupported version')
+
+    # Extract file indexes from opened archive.
+    def extract_indexes(self):
+        self.handle.seek(0)
+        indexes = None
+
+        if self.version in [2, 3, 3.2]:
+            # Fetch metadata.
+            metadata = self.handle.readline()
+            vals = metadata.split()
+            offset = int(vals[1], 16)
+            if self.version == 3:
+                self.key = 0
+                for subkey in vals[2:]:
+                    self.key ^= int(subkey, 16)
+            elif self.version == 3.2:
+                self.key = 0
+                for subkey in vals[3:]:
+                    self.key ^= int(subkey, 16)
+
+            # Load in indexes.
+            self.handle.seek(offset)
+            contents = codecs.decode(self.handle.read(), 'zlib')
+            indexes = _unpickle(contents)
+
+            # Deobfuscate indexes.
+            if self.version in [3, 3.2]:
+                obfuscated_indexes = indexes
+                indexes = {}
+                for i in obfuscated_indexes.keys():
+                    if len(obfuscated_indexes[i][0]) == 2:
+                        indexes[i] = [ (offset ^ self.key, length ^ self.key) for offset, length in obfuscated_indexes[i] ]
+                    else:
+                        indexes[i] = [ (offset ^ self.key, length ^ self.key, prefix) for offset, length, prefix in obfuscated_indexes[i] ]
+        else:
+            indexes = pickle.loads(codecs.decode(self.handle.read(), 'zlib'))
+
+        return indexes
+
+    # Generate pseudorandom padding (for whatever reason).
+    def generate_padding(self):
+        length = random.randint(1, self.padlength)
+
+        padding = ''
+        while length > 0:
+            padding += chr(random.randint(1, 255))
+            length -= 1
+
+        return bytes(padding, 'utf-8')
+
+    # Converts a filename to archive format.
+    def convert_filename(self, filename):
+        (drive, filename) = os.path.splitdrive(os.path.normpath(filename).replace(os.sep, '/'))
+        return filename
+
+    # Debug (verbose) messages.
+    def verbose_print(self, message):
+        if self.verbose:
+            print(message)
+
+    # List files in archive and current internal storage.
+    def list(self):
+        return list(self.indexes.keys()) + list(self.files.keys())
+
+    # Check if a file exists in the archive.
+    def has_file(self, filename):
+        filename = _unicode(filename)
+        return filename in self.indexes.keys() or filename in self.files.keys()
+
+    # Read file from archive or internal storage.
+    def read(self, filename):
+        filename = self.convert_filename(_unicode(filename))
+
+        # Check if the file exists in our indexes.
+        if filename not in self.files and filename not in self.indexes:
+            raise IOError(errno.ENOENT, 'the requested file {0} does not exist in the given Ren\'Py archive'.format(
+                _printable(filename)))
+
+        # If it's in our opened archive index, and our archive handle isn't valid, something is obviously wrong.
+        if filename not in self.files and filename in self.indexes and self.handle is None:
+            raise IOError(errno.ENOENT, 'the requested file {0} does not exist in the given Ren\'Py archive'.format(
+                _printable(filename)))
+
+        # Check our simplified internal indexes first, in case someone wants to read a file they added before without saving.
+        if filename in self.files:
+            self.verbose_print('Reading file {0} from internal storage...'.format(_printable(filename)))
+            return self.files[filename]
+        else:
+            # Read offset and length, seek to the offset and read the file contents.
+            if len(self.indexes[filename][0]) == 3:
+                (offset, length, prefix) = self.indexes[filename][0]
+            else:
+                (offset, length) = self.indexes[filename][0]
+                prefix = ''
+
+            self.verbose_print('Reading file {0} from data file {1}... (offset = {2}, length = {3} bytes)'.format(
+                _printable(filename), self.file, offset, length))
+            self.handle.seek(offset)
+            return _unmangle(prefix) + self.handle.read(length - len(prefix))
+
+    # Modify a file in archive or internal storage.
+    def change(self, filename, contents):
+        filename = _unicode(filename)
+        self.remove(filename)
+        self.add(filename, contents)
+
+    # Add a file to the internal storage.
+    def add(self, filename, contents):
+        filename = self.convert_filename(_unicode(filename))
+        if filename in self.files or filename in self.indexes:
+            raise ValueError('file {0} already exists in archive'.format(_printable(filename)))
+        self.verbose_print('Adding file {0} to archive... (length = {1} bytes)'.format(
+            _printable(filename), len(contents)))
+        self.files[filename] = contents
+
+    # Remove a file from archive or internal storage.
+    def remove(self, filename):
+        filename = _unicode(filename)
+        if filename in self.files:
+            self.verbose_print('Removing file {0} from internal storage...'.format(_printable(filename)))
+            del self.files[filename]
+        elif filename in self.indexes:
+            self.verbose_print('Removing file {0} from archive indexes...'.format(_printable(filename)))
+            del self.indexes[filename]
+        else:
+            raise IOError(errno.ENOENT, 'the requested file {0} does not exist in this archive'.format(_printable(filename)))
+
+    # Load archive.
+    def load(self, filename):
+        filename = _unicode(filename)
+
+        if self.handle is not None:
+            self.handle.close()
+        self.file = filename
+        self.files = {}
+        self.handle = open(self.file, 'rb')
+        self.version = self.get_version()
+        self.indexes = self.extract_indexes()
+
+    # Save current state into a new file, merging archive and internal storage, rebuilding indexes, and optionally saving in another format version.
+    def save(self, filename=None):
+        filename = _unicode(filename)
+
+        if filename is None:
+            filename = self.file
+        if filename is None:
+            raise ValueError('no target file found for saving archive')
+        if self.version != 2 and self.version != 3:
+            raise ValueError('saving is only supported for version 2 and 3 archives')
+
+        self.verbose_print('Rebuilding archive index...')
+        # Merge files added or changed in this session.
+        files = self.files
+        # First, read files from the current archive into our files structure.
+        for file in list(self.indexes.keys()):
+            content = self.read(file)
+            del self.indexes[file]
+            files[file] = content
+
+        # Predict header length; we will write it last.
+        offset = 0
+        if self.version == 3:
+            offset = 34
+        elif self.version == 2:
+            offset = 25
+        archive = open(filename, 'wb')
+        archive.seek(offset)
+
+        # Build new indexes while writing files to the archive.
+        indexes = {}
+        self.verbose_print('Writing files to archive file...')
+        for file, content in files.items():
+            # Generate random padding if needed.
+            if self.padlength > 0:
+                padding = self.generate_padding()
+                archive.write(padding)
+                offset += len(padding)
+
+            archive.write(content)
+            # Update index.
+            if self.version == 3:
+                indexes[file] = [ (offset ^ self.key, len(content) ^ self.key) ]
+            elif self.version == 2:
+                indexes[file] = [ (offset, len(content)) ]
+            offset += len(content)
+
+        # Write the indexes.
+        self.verbose_print('Writing archive index to archive file...')
+        archive.write(codecs.encode(pickle.dumps(indexes, self.PICKLE_PROTOCOL), 'zlib'))
+        # Now write the header.
+        self.verbose_print('Writing header to archive file... (version = RPAv{0})'.format(self.version))
+        archive.seek(0)
+        if self.version == 3:
+            archive.write(codecs.encode('{}{:016x} {:08x}\n'.format(self.RPA3_MAGIC, offset, self.key)))
+        else:
+            archive.write(codecs.encode('{}{:016x}\n'.format(self.RPA2_MAGIC, offset)))
+        archive.close()
+
+        # Reload the file in our internal database.
+        self.load(filename)
+
+
+def main():
+    import argparse
+
+    parser = argparse.ArgumentParser(
+        description='A tool for working with Ren\'Py archive files.',
+        epilog='The FILE argument can optionally be in ARCHIVE=REAL format, mapping a file in the archive filesystem to a file on your system. For example: rpatool -x test.rpa script.rpyc=/home/foo/test.rpyc',
+        add_help=False)
+
+    parser.add_argument('archive', metavar='ARCHIVE', nargs='?', help='The Ren\'Py archive file to operate on.')
+    parser.add_argument('files', metavar='FILE', nargs='*', action='append', help='Zero or more files to operate on.')
+
+    parser.add_argument('-l', '--list', action='store_true', help='List files in archive ARCHIVE.')
+    parser.add_argument('-x', '--extract', action='store_true', help='Extract FILEs from ARCHIVE.')
+    parser.add_argument('-c', '--create', action='store_true', help='Create ARCHIVE from FILEs.')
+    parser.add_argument('-d', '--delete', action='store_true', help='Delete FILEs from ARCHIVE.')
+    parser.add_argument('-a', '--append', action='store_true', help='Append FILEs to ARCHIVE.')
+
+    parser.add_argument('-2', '--two', action='store_true', help='Use the RPAv2 format for creating/appending archives.')
+    parser.add_argument('-3', '--three', action='store_true', help='Use the RPAv3 format for creating/appending archives (default).')
+
+    parser.add_argument('-k', '--key', metavar='KEY', help='The obfuscation key used for creating RPAv3 archives, in hexadecimal (default: 0xDEADBEEF).')
+    parser.add_argument('-p', '--padding', metavar='COUNT', help='The maximum number of padding bytes to add between files (default: 0).')
+    parser.add_argument('-o', '--outfile', help='An alternative output archive file when appending or deleting from archives, or output directory when extracting.')
+
+    # Add new flag for extracting all archives in the current directory.
+    parser.add_argument('--all', action='store_true', help='If specified, extracts all .rpa archives in the current directory.')
+
+    parser.add_argument('-h', '--help', action='help', help='Print this help message and exit.')
+    parser.add_argument('-v', '--verbose', action='store_true', help='Show detailed messages during operations.')
+    parser.add_argument('-V', '--version', action='version', version='rpatool v0.8', help='Show version information.')
+    arguments = parser.parse_args()
+
+    # Determine RPA version.
+    if arguments.two:
+        version = 2
+    else:
+        version = 3
+
+    # Determine RPAv3 key.
+    if hasattr(arguments, 'key') and arguments.key is not None:
+        key = int(arguments.key, 16)
+    else:
+        key = 0xDEADBEEF
+
+    # Determine padding bytes.
+    if hasattr(arguments, 'padding') and arguments.padding is not None:
+        padding = int(arguments.padding)
+    else:
+        padding = 0
+
+    # If the --all flag is specified, ignore the ARCHIVE argument and process all .rpa files in the current directory.
+    if arguments.all:
+        archive_files = [f for f in os.listdir('.') if f.lower().endswith('.rpa')]
+        if not archive_files:
+            print('No .rpa archives found in the current directory.', file=sys.stderr)
+            sys.exit(0)
+        for archive_filename in archive_files:
+            print("Processing archive: {}".format(archive_filename))
+            try:
+                current_archive = RenPyArchive(archive_filename, padlength=padding, key=key, version=version, verbose=arguments.verbose)
+            except IOError as e:
+                print('Failed to open archive {}: {}'.format(archive_filename, e), file=sys.stderr)
+                continue
+
+            # Determine the extraction directory.
+            # If --outfile is provided, use it; otherwise, extract to the current directory directly.
+            if arguments.outfile:
+                outfolder = _unicode(arguments.outfile)
+            else:
+                outfolder = "."
+
+            if not os.path.exists(outfolder):
+                os.makedirs(outfolder)
+
+            # Extract all files from the archive.
+            for filename in current_archive.list():
+                if filename.find('=') != -1:
+                    (outfile, filename) = filename.split('=', 2)
+                else:
+                    outfile = filename
+                try:
+                    contents = current_archive.read(filename)
+                    destination = os.path.join(outfolder, outfile)
+                    destdir = os.path.dirname(destination)
+                    if destdir and not os.path.exists(destdir):
+                        os.makedirs(destdir)
+                    with open(destination, 'wb') as file_out:
+                        file_out.write(contents)
+                except Exception as e:
+                    print('Failed to extract file {} from {}: {}'.format(filename, archive_filename, e), file=sys.stderr)
+        sys.exit(0)
+
+    # Determine input archive/output file.
+    if arguments.create:
+        archive = None
+        output = _unicode(arguments.archive)
+    else:
+        archive = _unicode(arguments.archive) if arguments.archive is not None else None
+        if hasattr(arguments, 'outfile') and arguments.outfile is not None:
+            output = _unicode(arguments.outfile)
+        else:
+            if arguments.extract:
+                output = '.'
+            else:
+                output = _unicode(arguments.archive) if arguments.archive is not None else ''
+
+    # Normalize file arguments.
+    if len(arguments.files) > 0 and isinstance(arguments.files[0], list):
+        arguments.files = arguments.files[0]
+
+    try:
+        if archive is None:
+            raise ValueError("No input archive specified.")
+        archive = RenPyArchive(archive, padlength=padding, key=key, version=version, verbose=arguments.verbose)
+    except Exception as e:
+        print('Failed to open archive {} for reading: {}'.format(archive, e), file=sys.stderr)
+        sys.exit(1)
+
+    if arguments.create or arguments.append:
+        def add_file(filename):
+            if filename.find('=') != -1:
+                (outfile, filename) = filename.split('=', 2)
+            else:
+                outfile = filename
+
+            if os.path.isdir(filename):
+                for file in os.listdir(filename):
+                    add_file(outfile + os.sep + file + '=' + filename + os.sep + file)
+            else:
+                try:
+                    with open(filename, 'rb') as file_in:
+                        archive.add(outfile, file_in.read())
+                except Exception as e:
+                    print('Failed to add file {} to archive: {}'.format(filename, e), file=sys.stderr)
+
+        for filename in arguments.files:
+            add_file(_unicode(filename))
+
+        archive.version = version
+        try:
+            archive.save(output)
+        except Exception as e:
+            print('Failed to save archive: {}'.format(e), file=sys.stderr)
+    elif arguments.delete:
+        for filename in arguments.files:
+            try:
+                archive.remove(filename)
+            except Exception as e:
+                print('Failed to delete file {} from archive: {}'.format(filename, e), file=sys.stderr)
+        archive.version = version
+        try:
+            archive.save(output)
+        except Exception as e:
+            print('Failed to save archive: {}'.format(e), file=sys.stderr)
+    elif arguments.extract:
+        # If specific files are provided, extract them; otherwise, extract all files.
+        if len(arguments.files) > 0:
+            files = arguments.files
+        else:
+            files = archive.list()
+
+        if not os.path.exists(output):
+            os.makedirs(output)
+
+        for filename in files:
+            if filename.find('=') != -1:
+                (outfile, filename) = filename.split('=', 2)
+            else:
+                outfile = filename
+            try:
+                contents = archive.read(filename)
+                out_path = os.path.join(output, outfile)
+                if os.path.dirname(out_path) and not os.path.exists(os.path.dirname(out_path)):
+                    os.makedirs(os.path.dirname(out_path))
+                with open(out_path, 'wb') as file_out:
+                    file_out.write(contents)
+            except Exception as e:
+                print('Failed to extract file {} from archive: {}'.format(filename, e), file=sys.stderr)
+    elif arguments.list:
+        file_list = archive.list()
+        file_list.sort()
+        for file in file_list:
+            print(file)
+    else:
+        print('No operation specified :(')
+        print('Use {} --help for usage details.'.format(sys.argv[0]))
+
+if __name__ == "__main__":
+    main()