Resource Remover

A lightweight mod that prevents selected resource files from being loaded by the game. You configure which resources to
block using two plain-text matcher files:

• ./config/resource_remover/assets.txt — used for client resources (textures, models, sounds, lang, etc.)
• ./config/resource_remover/data.txt — used for server/data resources (recipes, tags, loot tables, datapacks, etc.)

If a matcher file is missing or unreadable the mod will create an empty file automatically.

This mod is useful for:

• Cannot fully remove a resource file or annoying about loading errors when override with a blank file.
• Modpack developers who want to disable specific resources from mods without needing to create a full resource pack /
  data pack.

How it works

• The mod wraps each resource with a filter that checks resource identifiers (ResourceLocation.toString()) against
  the matchers.
• When a resource matches a rule the mod prevents it from being returned to the game (and logs a short info message).
• Matching is applied separately for client assets (pack type CLIENT_RESOURCES → assets.txt) and server data (pack
  type SERVER_DATA → data.txt).

Matcher rules and syntax

• Each non-empty line in assets.txt / data.txt is treated as a single rule. Blank lines and fully
  blank/whitespace-only lines are ignored.
• Lines starting with # are treated as comments and ignored.
• The implementation supports three rule modes (determined automatically):
  1. Regular expression: if the line contains regex metacharacters (one of . + ? | ( ) [ ] { } ^ $ \ ) it will be
     treated as a Java regular expression and matched against the whole resource string.
  2. Wildcard: if the rule contains * and no other regex meta characters, it will act as a simple wildcard where
     * matches any sequence of characters.
  3. Exact match: otherwise the rule is treated as an exact full-string match.

Examples

• Resource identifiers are compared using their string form (for example minecraft:models/block/dirt or
  mymod:textures/gui/button.png). Use the examples below as guidance:

Client (assets.txt) examples

# block models
minecraft:models/block/*

# specific texture
my_mod:textures/gui/button.png

# regex example: any PNG under any namespace ending with _icon.png
.*_icon\.png$

Server/data (data.txt) examples

# all recipes in a namespace
my_mod:recipes/*

# exact datapack root file (if needed)
somepack:pack.mcmeta

Notes on matching behavior

• A rule that contains any regex metacharacter is compiled as a full Java regex and matched against the whole resource
  string (Pattern.matches semantics used internally).
• A rule with * but no other meta characters is translated to a wildcard (so mod:models/*/block becomes a regex
  equivalent to ^mod:models/.*/block$).
• If a rule is an invalid regex it will be treated as an exact literal match as a fallback.

Troubleshooting

If your matchers do not appear to take effect, ensure:

• Your patterns match the full ResourceLocation string form (namespace:path + path parts). Try a more general wildcard
  like * to verify the system is filtering.
• Check the game log for Prevented loading of resource messages to confirm matches.