# Show GN: blame-rs - Rust로 작성된 라인별 저자 추적 라이브러리

> Clean Markdown view of GeekNews topic #23753. Use the original source for factual precision when an external source URL is present.

## Metadata

- GeekNews HTML: [https://news.hada.io/topic?id=23753](https://news.hada.io/topic?id=23753)
- GeekNews Markdown: [https://news.hada.io/topic/23753.md](https://news.hada.io/topic/23753.md)
- Type: show
- Author: [levish](https://news.hada.io/@levish)
- Published: 2025-10-19T19:19:46+09:00
- Updated: 2025-10-19T19:19:46+09:00
- Original source: [github.com/levish0](https://github.com/levish0/blame-rs)
- Points: 3
- Comments: 0

## Topic Body

텍스트 파일의 각 라인이 어떤 리비전에서 작성되었는지 추적할 수 있는 Rust 라이브러리를 만들었습니다.  
  
  주요 기능:  
  
  - 제네릭 메타데이터 API: 커밋 해시, 작성자, 타임스탬프 등 원하는 메타데이터 타입 첨부 가능  
  - 다양한 diff 알고리즘: Myers(기본) 및 Patience 알고리즘 지원  
  - 고성능 설계: zero-copy 라인 추적, Rc를 통한 메타데이터 공유  
  - 포워드 트래킹: 가장 오래된 리비전부터 최신 리비전까지 효율적으로 라인 출처 추적  
  - 포괄적인 테스트: fixture 기반 테스트로 실제 시나리오 검증  
  
  링크:  
  
  - crates.io: https://crates.io/crates/blame-rs  
  - 소스코드: https://github.com/levish0/blame-rs  
  - 문서: https://docs.rs/blame-rs  
  
usage:  
```  
use blame_rs::DiffAlgorithm::{Myers, Patience};  
use blame_rs::{BlameOptions, BlameRevision, blame_with_options};  
use std::fs;  
use std::rc::Rc;  
  
#[derive(Debug)]  
struct CommitInfo {  
    hash: String,  
    author: String,  
    message: String,  
}  
  
fn main() {  
    // Read revision files  
    let rev0 = fs::read_to_string("examples/rev0.txt").expect("Failed to read rev0.txt");  
    let rev1 = fs::read_to_string("examples/rev1.txt").expect("Failed to read rev1.txt");  
    let rev2 = fs::read_to_string("examples/rev2.txt").expect("Failed to read rev2.txt");  
  
    // Create revisions with metadata  
    let revisions = vec![  
        BlameRevision {  
            content: &rev0,  
            metadata: Rc::new(CommitInfo {  
                hash: "abc123".to_string(),  
                author: "Alice".to_string(),  
                message: "Initial commit".to_string(),  
            }),  
        },  
        BlameRevision {  
            content: &rev1,  
            metadata: Rc::new(CommitInfo {  
                hash: "def456".to_string(),  
                author: "Bob".to_string(),  
                message: "Add greeting message".to_string(),  
            }),  
        },  
        BlameRevision {  
            content: &rev2,  
            metadata: Rc::new(CommitInfo {  
                hash: "789abc".to_string(),  
                author: "Charlie".to_string(),  
                message: "Update greeting and add footer".to_string(),  
            }),  
        },  
    ];  
  
    // Run blame  
    let result = blame_with_options(  
        &revisions,  
        BlameOptions {  
            algorithm: Patience,  
        },  
    )  
    .expect("Blame operation failed");  
}  
```  
  
```  
Blame Results:  
================================================================================  
Line   Commit     Author          Content  
================================================================================  
1      abc123     Alice           fn main() {  
2      abc123     Alice               println!("Hello, world!");  
3      def456     Bob                 println!("Bob did this");  
4      def456     Bob             }  
5      789abc     Charlie         fn main() {  
6      789abc     Charlie             println!("Hello, world!");  
7      789abc     Charlie         }  
  
================================================================================  
Revision Details:  
================================================================================  
Revision 0: abc123 - Alice - "Initial commit"  
Revision 1: def456 - Bob - "Add greeting message"  
Revision 2: 789abc - Charlie - "Update greeting and add footer"  
```

## Comments



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