vcs/

Kale VCS

Distributed Content-Addressable Version Control

A fast, transparent distributed version control system designed to be 100% written in Kale. Features a custom pure-Kale SHA-1 cryptographic engine, immutable content-addressable object store (blob, tree, commit), staging index file format with binary checksums, and two-way file diffing.

Hash EnginePure Kale SHA-1

Object StorageDAG Loose Objects

Staging IndexBinary Cache V2

MilestoneM12 Complete

Frame Budget & Event Loop

Target: 144 FPS (6.94ms per frame)

1. Input Polling (0.2ms)

Raw keyboard & mouse events polled via GLFW3 callbacks

2. Piece Table Mutation (0.4ms)

Append-only buffer edit with instant O(1) undo/redo stack

3. GPU Batched Quad Draw (0.8ms)

Dynamic font atlas textures rendered in single GPU draw call

Piece Table Buffer Engine

Sub-Millisecond Multi-Cursor Editing

Unlike line-array or gap-buffer architectures, the Kale Piece Table holds an immutable original file buffer coupled with an append-only edit buffer. Loading a 100MB file takes under 1ms because no memory copying occurs.

Buffer Type: Immutable File Span + Append-Only Log

Undo/Redo: Zero heap copy • O(1) pointer adjustment

vcs_commit.kl

kale

import "vcs/sha1.kl" as sha1;
import "vcs/object_store.kl" as store;
import "vcs/index.kl" as index;

fn create_commit(repo_path: string, author: string, message: string) -> string {
    let idx: index.Index = index.read_index(repo_path);
    let root_tree_hash: string = store.write_tree_from_index(&idx);
    let parent_hash: string = store.get_head_commit(repo_path);
    
    let commit_hash: string = store.write_commit(
        root_tree_hash,
        parent_hash,
        author,
        message
    );
    store.update_ref(repo_path, "refs/heads/master", commit_hash);
    return commit_hash;
}

Compilation & Linker Directives

Deterministic command-line invocations to build, link native dynamic dependencies, and run automated regression tests:

$kale build vcs/main.kl -o bin/kale_vcs.exe

$./bin/kale_vcs.exe init

$./bin/kale_vcs.exe add .

$./bin/kale_vcs.exe commit -m 'Initial Kale release'

$./bin/kale_vcs.exe log

Monorepo Governance

GPG Key 1B917D4779A6102E • Continuous integration with automated symbol verification.

Architectural Capabilities

Pure Kale Cryptographic Core

Zero external dependencies for SHA-1 hash calculation, tree hashing, and signature generation.

Git Object Compatibility

Stores blobs, trees, and commit manifests in content-addressable objects indexed by 40-character hex hashes.

Porcelain Command Suite

Full suite of porcelain commands: init, add, commit, status, log, and diff.

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