A cross platform utility for unpacking, repacking, and listing the contents of Outpost 2 Archive files (.VOL and .CLM). Check the OP2Archive GitHub release page for the newest version. Developed by Hooman and Brett208 (Vagabond).
OP2Archive is released under a MIT license. See License.txt for details.
OP2Archive LIST (archivename.(vol|clm) | directory)...
OP2Archive FIND filename...
OP2Archive CREATE archivename.(vol|clm) [filename | directory]... [-q] [-o]
OP2Archive EXTRACT archivename.(vol|clm) [filename]... [-q] [-d destDirectory] [-o]
OP2Archive EXTRACT directoryname [-q] [-d destDirectory] [-o]
OP2Archive ADD archiveName.[vol|clm] filename... [-q] [-o]
OP2Archive REMOVE archiveName.[vol|clm] filename... [-q] [-o]
-H / --Help / -?: Displays help information.-Q / --Quiet: [Default false] Prevents application from issuing console messages.-O / --Overwrite: [Default false] Allows application to overwrite existing files.-D / --DestinationDirectory: [Default is ./]. Sets the destination directory for extracted file(s).For more information about Outpost 2 visit the Outpost Universe (http://outpost2.net/).
Unzip OP2Archive.exe using a WINZIP compatible decompression algorithm. The typical place to put OP2Archive.exe is in the root OP2 install directory for ease of use, but this is not required.
Open a command prompt. Navigate to the directory containing OP2Archive and type OP2Archive -h to see Usage Message.
If you wish to overwrite a file currently in an archive file, use the ADD command and include the optional argument -O / --Overwrite to allow overwriting the original file.
The ADD and REMOVE command will create a new temp directory with the name ./OP2ArchiveTemp-(RANDOM INT) to store the contents of the archive file while rebuilding it. The ADD and REMOVE command will also eventually delete the original archive file before rebuilding it. If certain fatal exceptions occur during this process such as a power loss, the original archive file may be lost and/or the temp directory may not be deleted. If you are performing ADD and REMOVE commands on a heavily modified archive file, consider keeping a backup of the file somewhere. For a stock archive, if a fatal error in a critical step of the ADD and REMOVE commands, you can recover the archive file from the Outpost Universe website by redownloading the game.
Outpost 2 stores all music tracks except for the main menu track in the archive file op2.clm.
If you wish to change the sound tracks in Outpost 2, you must use the WAV file format with specific settings.
As a starting point for manipulating audio tracks for Outpost 2, consider the free program Audacity (http://www.audacityteam.org/).
When naming audio files for storage in a CLM archive, the filename (excluding extension) must be 8 characters or less. The names of the audio tracks provided with the stock download of the game must be used. The game will then select the music tracks as it sees appropriate based on name.
Outpost 2 audio tracks must be formatted as WAV files with the following settings:
The file size of each WAV audio track (the actual wav data) must be zero padded to a multiple of 32768 bytes (0x8000). Output 2 fills the music buffer in 0x8000 size chunks and will not zero fill if a chunk at the end of a file is too short. If the file is not a multiple of 32768 bytes (0x8000), some garbage data will be played in Outpost 2 before switches to the next track.
Outpost 2 contains references to 3 types of compression, RLE (Run - Length Encoded), LZ (Lempel - Ziv), and LZH (Lempel - Ziv, with adaptive Huffman encoding).
Only LZH was used in the final release of Outpost 2. Only one archive file was compressed, sheets.vol. In subsequent releases of Outpost 2 by the Outpost Universe community, sheets.vol was decompressed and included in the game download in uncompressed format.
OP2Archive is capable of reading and decompressing archives using LZH compression. However, it currently cannot CREATE archives or modify via the ADD or REMOVE an archive using LZH compression.
Source code may be found at: https://github.com/OutpostUniverse/OP2Archive. See the file DeveloperReadMe.txt in the source code for specific instructions.
Ver 1.2.2
ADD and REMOVE command work again.CREATE command to work when adding the contents of a directory to a new volume.Ver 1.2.1
Ver 1.2.0
Ver 1.1.1
CREATE command, sort all filenames case insensitive.Ver 1.1.0
CREATE command.CREATE a repository that would contain 2 files with the same name results in an error message.EXTRACT a directory from an Archive results in an error message.Ver 1.0.2
Ver 1.0.1 (07Nov2017)
Ver 1.0.0 (07Oct2017)