mdp

mdp is a very simple demo parser for Portal 2 demos which extracts information injected by SAR.

Usage

After building mdp, place it in a directory containing the following files:

• cmd_whitelist.txt (whitelist of allowed command prefixes)
• cvar_whitelist.txt (whitelist of allowed initial cvar values)
• expected_maps.txt (BSP names expected to be in demos being checked)
• sar_whitelist.txt (whitelist of SAR CRC32 checksums)
• filesum_whitelist.txt (whitelist of CRC32 checksums for checked files)
• config.txt (general configuration)

Then, place all the demos in a subdirectory demos/, and run mdp. It will create two files: errors.txt and output.txt.

cmd_whitelist.txt

This is a whitelist of allowed command prefixes which will be omitted from the parser output. Example:

sar_speedrun_
sar_autorecord
sar_record_at
sar_record_prefix
sar_fast_load_preset
ui_loadingscreen_transition_time 0.0
ui_loadingscreen_fadein_time 0.0

cvar_whitelist.txt

This is a whitelist for allowed values for cvars to initially contain. Lines may be formatted as cvar val to allow a specific value, or cvar to allow any value. Initial values matching the whitelist are omitted from output. Cvars whose value is the game's default are not included in demos. Example:

sar_speedrun_offset
sar_record_at 0

expected_maps.txt

This is a list of map names (one per line) which are all expected to be in the demos. Any of these maps which were not visited in any demo are added to the end of output.txt.

sar_whitelist.txt

This is a whitelist of SAR CRC32 checksums to allow (one per line). Demos will report if the SAR checksum doesn't match a whitelisted value.

filesum_whitelist.txt

This is a whitelist of file checksums - SAR adds checksums for certain important files like custom VPKs and vscripts. A file can be excluded from appearing by placing its name in this file, or a specific checksum can be allowed for it by writing its name, then a space, then the expected checksum. Allowed values are omitted from output.

config.txt

This file contains a few configuration settings, configured using lines of the format key value. Possible options:

• file_sum_mode [0/1/2]. 0 = don't show, 1 = show not matching, 2 (default) = show not matching or not present.
• initial_cvar_mode [0/1/2]. 0 = don't show, 1 = show not matching, 2 (default) = show not matching or not present.
• show_passing_checksums [0/1]. Defaults to 0 (off).
• show_wait [0/1]. Defaults to 1 (on).