refactor(bare): enhance security and performance optimizations

- Remove unnecessary sorting in advertise_refs for deterministic output
- Add path traversal detection and validation in bare_dir construction
- Implement symlink resolution checks to prevent security vulnerabilities
- Refactor cache system with CRC validation and improved metrics
- Integrate repo-specific cache invalidation using indexed keys
- Add comprehensive unit tests for commit operations and diff functionality
- Move configuration constants to centralized config module
- Optimize string operations in disk cache random value generation
- Enhance license detection algorithm with cleaner matching logic
- Streamline argument processing in various git operations
- Update dependencies including crc32fast and flate2 for performance
- Add signal handling capability to tokio runtime configuration

repository/find_license.rs

@@ -57,57 +57,46 @@ impl GitBare {
 fn detect_license(content: &str) -> (&'static str, &'static str, f64) {
     let lower = content.to_lowercase();
 
-    // MIT
     if lower.contains("permission is hereby granted, free of charge") && lower.contains("mit") {
         return ("MIT", "MIT License", 0.95);
     }
 
-    // Apache 2.0
     if lower.contains("apache license, version 2.0") || lower.contains("apache-2.0") {
         return ("Apache-2.0", "Apache License 2.0", 0.95);
     }
 
-    // GPL 3.0
     if lower.contains("gnu general public license") && lower.contains("version 3") {
         return ("GPL-3.0", "GNU General Public License v3.0", 0.90);
     }
-    // GPL 2.0
     if lower.contains("gnu general public license") && lower.contains("version 2") {
         return ("GPL-2.0", "GNU General Public License v2.0", 0.90);
     }
 
-    // BSD 3
     if lower.contains("redistribution and use in source and binary forms")
         && lower.contains("neither the name of")
     {
         return ("BSD-3-Clause", "BSD 3-Clause License", 0.85);
     }
-    // BSD 2
     if lower.contains("redistribution and use in source and binary forms") {
         return ("BSD-2-Clause", "BSD 2-Clause License", 0.80);
     }
 
-    // AGPL
     if lower.contains("gnu affero general public license") {
         return ("AGPL-3.0", "GNU Affero General Public License v3.0", 0.90);
     }
 
-    // LGPL
     if lower.contains("gnu lesser general public license") {
         return ("LGPL-3.0", "GNU Lesser General Public License v3.0", 0.85);
     }
 
-    // MPL
     if lower.contains("mozilla public license") {
         return ("MPL-2.0", "Mozilla Public License 2.0", 0.90);
     }
 
-    // Unlicense
     if lower.contains("this is free and unencumbered software released into the public domain") {
         return ("Unlicense", "The Unlicense", 0.95);
     }
 
-    // ISC
     if lower.contains("permission to use, copy, modify, and/or distribute") && lower.contains("isc")
     {
         return ("ISC", "ISC License", 0.80);