🔧 dataLib

🗄️ ARCHIVED

This project is archived and no longer maintained. No new features, bug fixes, or security patches will be released. The information below reflects the state of the project at the time of archival and is kept for reference only.

Use at your own risk — known issues will not be fixed, and newer Minecraft versions are not guaranteed to be compatible.

Minecraft Java Edition 26.2 | Multiplayer-Safe | Pure Datapack

Current version: v6.0.2

This datapack was considered safe to use as of its last release, but it no longer receives security improvements, bug fixes, or new features. There is no "up to date" version to move to.

Do not copy datalib:input or datalib:engine into your own datapack. It is an internal implementation detail and may change without notice between releases.

⚠️ Do not use v5.1.1. That version bound _rt_origin.mcfunction to the load tag, causing it to run automatically on every load with no safe removal path. Fixed in later versions — always use the latest release.

⚠️ A /reload is still required after installation or after adding the load hook below. Automatic first-join initialization is not implemented in this version — do not rely on this until verified in-game with repeated reloads.

🛡️ This is a Minecraft Datapack — it contains no executables or scripts outside of .mcfunction files. Some antivirus software may flag .mcfunction files as suspicious due to macro-like syntax. This is a false positive. The pack has been scanned on VirusTotal and returned clean. Only download from this official repository. Do not trust redistributed or repackaged versions from third-party sources.

📦 Installation

1. Download the latest release from the Modrinth versions page and place the .zip into <world>/datapacks/.

2. Add the following logic to your datapack's load tag. Replace <namespace> with your own datapack's namespace (e.g. mypack) — this applies only to the function names, never to datalib:engine, which is dataLib's own fixed storage and must not be changed:

#> <namespace>:load
execute unless data storage datalib:engine {global:{loaded:1b}} run function <namespace>:load_datalib

#> <namespace>:load_datalib

# Guard checks the SAME storage/path the trigger condition checks (datalib:engine global.loaded).
execute if data storage datalib:engine {global:{loaded:1b}} run return 0

function dl_load:load/yes
function dl_load:load/fork_no

data modify storage datalib:engine global.loaded set value 1b

🏗️ Storage Architecture

datalib:engine  (persistent data)
├── global
│   ├── version: "v6.0.2"
│   ├── loaded: 1b
│   └── tick: <int>
├── players
│   └── Steve { coins:150, level:5, xp:2300, online:1b, ... }
├── queue
│   └── [{func:"mypack:event/end", delay:100}]
├── cooldowns
│   └── Steve { fireball: 2460, dash: 1870 }  ← expiry ticks
└── events
    └── on_join: [{func:"mypack:welcome"}, {func:"mypack:xp_bonus"}]

datalib:input   (sending data to a function)
datalib:output  (receiving results from a function)

Note: All dataLib-owned state lives under the datalib: namespace only. Never mix a consuming pack's own namespace into dataLib's load-flag logic — that mismatch was the source of the bug above.

📦 Dependencies

Lantern Load

Repository: https://github.com/LanternMC/load License: BSD 0-Clause (public domain)

Provides deterministic load order, version tracking, and pre/load/post-load hooks.

# Check if dataLib is loaded
execute if score #dataLib load.status matches 1.. run say dataLib is loaded

# Get version (major*10000 + minor*100 + patch → v6.0.2 = 601)
scoreboard players get dataLib load.status

StringLib

Repository: https://github.com/CMDred/StringLib License: MIT

Bundled under the stringlib namespace. Exposed via datalib:core/lib/string/*.

All functions read from datalib:input and write to datalib:output string.result.

data modify storage datalib:input string set value "Hello World"
data modify storage datalib:input find set value "World"
data modify storage datalib:input replace set value "Everyone"
function datalib:core/lib/string/replace
# datalib:output string.result → "Hello Everyone"

💬 Support

This project is archived. Issues and pull requests are not monitored and will not be actioned.

dataLib v6.0.2 | MC Java 26.2 | Pure Datapack