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GLifzip - High-Performance Compression Engine for GlyphOS

Crates.io License: MIT GitHub Release

Version 1.1.0 | Status: Production Ready | Apple/macOS Support: ✅ Complete

GLifzip is a modern, high-performance compression format designed for GlyphOS that achieves 10-100× faster compression and decompression than Windows/macOS ZIP through multi-threaded Zstd compression and LZ4 decompression.

Now with full native Apple/macOS support, extended attributes preservation, and Apple Silicon optimization.

Features

Performance

  • Multi-threaded Compression: Zstd-based compression with linear core scaling (≥1 GB/s per core target)
  • Ultra-fast Decompression: LZ4-based decompression (≥2 GB/s per core target)
  • Apple Silicon Optimized: Native arm64 support with dedicated optimizations
  • Deterministic Builds: Bit-for-bit identical outputs across all platforms

Data Integrity & Security

  • Cryptographic Verification: SHA256 hashing for payload and archive integrity
  • Symbolic Metadata: JSON sidecars capture transformation intent
  • Extended Attributes: Preserves macOS xattr, permissions, and timestamps

Platform Support

  • Cross-platform: Windows, Linux, and macOS (Intel & Apple Silicon)
  • macOS Native: Finder integration, file type registration, Gatekeeper support
  • Directory Compression: Archive entire directories with metadata preservation
  • Exclude Patterns: Flexible file filtering with glob patterns

Performance Targets

Cores Compression Decompression
1 ≥1.0 GB/s ≥2.0 GB/s
2 ≥2.0 GB/s ≥4.0 GB/s
4 ≥4.0 GB/s ≥8.0 GB/s
8 ≥8.0 GB/s ≥16.0 GB/s

Installation

From crates.io (Recommended)

cargo install glifzip

From Source

git clone https://github.com/EarthwebAP/glifzip.git
cd glifzip
cargo build --release

# Binary will be at target/release/glifzip

macOS Quick Install

# Using Homebrew (coming soon)
brew install glifzip

# Or download prebuilt binary
wget https://github.com/EarthwebAP/glifzip/releases/download/v1.1.0/glifzip-macos-aarch64  # Apple Silicon
# or
wget https://github.com/EarthwebAP/glifzip/releases/download/v1.1.0/glifzip-macos-x86_64   # Intel

chmod +x glifzip-macos-*
sudo mv glifzip-macos-* /usr/local/bin/glifzip

Usage

Compress a File

glifzip create <INPUT> -o <OUTPUT.glif> [OPTIONS]

# Examples:
glifzip create document.txt -o document.glif
glifzip create data.bin -o data.glif --level=3 --threads=8

Options:

  • --level=N: Compression level 1-22 (default: 8)
  • --threads=N: Number of threads (default: auto-detect)

Extract a File

glifzip extract <ARCHIVE.glif> -o <OUTPUT> [OPTIONS]

# Examples:
glifzip extract document.glif -o document.txt
glifzip extract data.glif -o data.bin --threads=16

Options:

  • --threads=N: Number of threads (default: auto-detect)

Verify an Archive

glifzip verify <ARCHIVE.glif>

# Example output:
# Archive verified successfully!
#   Payload size: 1000000 bytes
#   Archive size: 350000 bytes
#   Compression ratio: 35.00%
#   Compression level: 8
#   Threads used: 8

Library Usage

GLifzip can also be used as a Rust library:

use glifzip::{compress, decompress, CompressionConfig};

// Compress data
let data = b"Hello, GLifzip!";
let config = CompressionConfig::default();
let compressed = compress(data, &config)?;

// Decompress data
let decompressed = decompress(&compressed, config.threads)?;
assert_eq!(data, decompressed.as_slice());

File Format

GLifzip uses the .glif file format with the following structure:

GLIF01 Header (116 bytes)
├─ Magic Number: "GLIF01"
├─ Version: 1.0
├─ Payload Size (uncompressed)
├─ Archive Size (compressed)
├─ Payload Hash (SHA256)
├─ Archive Hash (SHA256)
├─ Compression Level
├─ Decompression Mode (0=LZ4, 1=Zstd)
├─ Cores Used
├─ Timestamp
└─ Sidecar Size

Symbolic Sidecar (JSON)
└─ Metadata about compression, hashes, platform

Compressed Payload
└─ Multi-threaded Zstd → LZ4 wrapped data

Week 1 Accomplishments

Completed:

  • Rust project structure with Cargo
  • GLIF header format parsing/writing
  • Multi-threaded Zstd compression (chunk-based, 128 MB per thread)
  • Multi-threaded LZ4 decompression
  • SHA256 verification for payload and archive
  • Symbolic sidecar JSON generation
  • Deterministic compression support
  • Comprehensive unit tests (34 tests passing)
  • Integration tests for file operations
  • Benchmark framework with Criterion
  • CLI tool with create/extract/verify commands

macOS Support

GLifzip v1.1.0 includes full native macOS/Apple support:

  • Apple Silicon (M1/M2/M3): Native arm64 optimizations
  • Intel Macs: Full x86_64 support
  • Extended Attributes: Preserves xattr, permissions, timestamps
  • Finder Integration: File type registration for seamless Finder experience
  • Quarantine Handling: Proper Gatekeeper attribute management

For complete macOS documentation, see MACOS_SUPPORT.md.

Testing

Run the test suite:

# Run all tests
cargo test --release

# Run with output
cargo test --release -- --nocapture

# Run benchmarks
cargo bench

# Test macOS-specific features
cargo test --lib apple_metadata
cargo test --lib platform

Project Structure

glifzip/
├── Cargo.toml                      # Project manifest
├── src/
│   ├── main.rs                     # CLI entry point
│   ├── lib.rs                      # Core library
│   ├── format/
│   │   ├── mod.rs
│   │   ├── header.rs               # GLIF header handling
│   │   └── sidecar.rs              # JSON metadata
│   ├── compression/
│   │   ├── mod.rs
│   │   ├── zstd_compressor.rs      # Multi-threaded Zstd
│   │   └── lz4_decompressor.rs     # Multi-threaded LZ4
│   └── verification/
│       ├── mod.rs
│       └── sha256.rs               # SHA256 verification
├── tests/
│   ├── compression_tests.rs
│   ├── decompression_tests.rs
│   └── integration_tests.rs
└── benches/
    ├── compression_bench.rs
    └── decompression_bench.rs

Roadmap

Week 2 (Upcoming)

  • Advanced CLI features (progress bars, file listings)
  • Directory compression support
  • Recursive file handling
  • Exclude patterns

Week 3 (Upcoming)

  • Windows file association registration
  • Explorer context menu integration
  • Windows installer
  • Icon design

Week 4 (Upcoming)

  • Performance profiling and optimization
  • Benchmark suite with real-world data
  • Production-ready error handling
  • Comprehensive documentation

License

MIT

Contributing

This project is part of the GlyphOS ecosystem. For specification details, see GLIFZIP_SPECIFICATION.md.

Technical Details

  • Compression: Zstd with configurable levels (1-22)
  • Decompression: LZ4 for maximum speed (10× faster than Zstd decompression)
  • Chunk Size: 128 MB per thread for optimal parallelization
  • Thread Pool: Rayon-based work stealing
  • Verification: SHA256 for both payload and archive
  • Platform: Rust 2021 edition, cross-platform

GLifzip - Fast, Deterministic, Verified Compression for GlyphOS

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High-performance compression engine for GlyphOS - 10-100× faster than traditional ZIP

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