MikiArchiver

This is a simple file archiver (no compression) written in C++ in my free time just for fun (almost not practically useful).
Named after my favourite character in iDOLM@STER Hoshii Miki.

Archive file information

• Extension: mka (stands for MikiArchive)
• Structure:
  • First 8 bytes: Signal to validate the file format MIKIMIKI.
  • Next 2 bytes: number of files being archived = n.
  • Next 4 bytes: chunk size.
  • Within next n blocks:
    • First 2 bytes: size of the filename = m.
    • Next m bytes: the filename.
    • Next 8 bytes: the filesize = s.
    • Next s bytes: file content.

Commandline arguments

• -e file_name: extract from file_name.
• -a file_list: make an archive from file_list. Must specify -o.
• -d directory: make an archive from directory. Must specify -o.
• -o file_name: save the archive as file_name (when used with -a and -d).
• -o directory: extract to directory (when used with -e).
• --chunksize: specify the chunk size.

Examples

# Make an archive named myarchive.mka from file1.docx, file2.exe and file3.cpp
$ mk -a file1.docx file2.exe file3.cpp -o myarchive.mka
# Make an archive named myarchive2.mka from mydirectory
$ mk -d mydirectory p -o myarchive2.mka
# Extract myarchive.mka to myoutputdir
$ mk -e myarchive.mka -o myoutputdir

Building

• Simply run make command in the repository directory.
• Recommended to use only on *nix. Tested on macOS Mojave.