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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[Unreleased]

[0.2.0] - 2025-08-08

Changed

Performance: Replaced HashMap with Perfect Hash Functions (PHF) for compile-time optimization
Memory: Eliminated lazy initialization overhead with static data structures
Binary size: Optimized with PHF compile-time hash generation
Startup: Zero runtime hash computation for all file type lookups

Fixed

Improved code formatting and applied clippy suggestions for better code quality

Technical Details

Converted 315+ file extension mappings to PHF
Converted 22 interpreter mappings to PHF
Converted 130+ special filename mappings to PHF
Maintained 100% API compatibility and functionality
All tests continue to pass with identical behavior

[0.1.1] - 2025-08-08

Changed

Performance: Replaced HashMap with Perfect Hash Functions (PHF) for compile-time optimization
Memory: Eliminated lazy initialization overhead with static data structures
Binary size: Optimized with PHF compile-time hash generation
Startup: Zero runtime hash computation for all file type lookups

Technical Details

Converted 315+ file extension mappings to PHF
Converted 22 interpreter mappings to PHF
Converted 130+ special filename mappings to PHF
Maintained 100% API compatibility and functionality
All 73 tests continue to pass with identical behavior

0.1.0 - 2025-08-07

Added

Initial Rust implementation of file identification library
Core functionality ported from Python identify library
Support for 316+ file extensions and format detection
Shebang parsing for executable script identification
Binary vs text content detection
File system metadata analysis (permissions, file types)
Command-line interface for file identification
Comprehensive test suite with 59+ tests
Complete API documentation with examples
Support for Unix sockets, symlinks, and special file types

Features

tags_from_path() - comprehensive file analysis from filesystem
tags_from_filename() - fast filename-only identification
tags_from_interpreter() - interpreter-based script identification
file_is_text() / is_text() - binary vs text detection
parse_shebang() / parse_shebang_from_file() - shebang parsing
CLI tool with JSON output and filename-only mode

Supported File Types

Programming languages: Python, JavaScript, Rust, Go, Java, C/C++, PHP, Ruby, Shell, etc.
Configuration formats: JSON, YAML, TOML, XML, INI, etc.
Documentation: Markdown, reStructuredText, AsciiDoc, etc.
Build systems: Makefile, CMake, Bazel, Meson, etc.
Container formats: Docker, Podman, etc.
And 300+ more file types and extensions