Function node_id

codegraph-kernel/src/ids.rs:16–34

(file_path: &str, kind: &str, name: &str, line: u32)

use sha2::{Digest, Sha256};

pub fn node_id(file_path: &str, kind: &str, name: &str, line: u32) -> String {
    let mut hasher = Sha256::new();
    hasher.update(file_path.as_bytes());
    hasher.update(b":");
    hasher.update(kind.as_bytes());
    hasher.update(b":");
    hasher.update(name.as_bytes());
    hasher.update(b":");
    hasher.update(line.to_string().as_bytes());
    let digest = hasher.finalize();
    // 32 hex chars = first 16 bytes.
    let mut hex = String::with_capacity(kind.len() + 1 + 32);
    hex.push_str(kind);
    hex.push(':');
    for b in &digest[..16] {
        hex.push_str(&format!("{b:02x}"));
    }
    hex
}

pub fn file_node_id(file_path: &str) -> String {
    format!("file:{file_path}")