llmgrep 3.5.0

Smart grep over Magellan code maps with schema-aligned JSON output
Documentation 
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//! Database backend format detection.
//!
//! This module provides detection for different database backend formats.

use std::path::Path;

/// Database backend format detection
#[derive(Debug, Clone, Copy, PartialEq)]
pub enum BackendFormat {
    /// SQLite database format
    Sqlite,
    /// Unknown or invalid format
    Unknown,
}

/// Detect the backend format of a database file by checking magic bytes
///
/// # Arguments
/// * `path` - Path to the database file
///
/// # Returns
/// `BackendFormat` indicating the detected format
pub fn detect_backend_format(path: &Path) -> BackendFormat {
    use std::fs::File;
    use std::io::Read;

    let mut file = match File::open(path) {
        Ok(f) => f,
        Err(_) => return BackendFormat::Unknown,
    };

    let mut header = [0u8; 16];
    match file.read_exact(&mut header) {
        Ok(_) => {}
        Err(_) => return BackendFormat::Unknown,
    }

    // Check for SQLite magic bytes: "SQLite format 3\0"
    if header[0..16] == *b"SQLite format 3\0" {
        return BackendFormat::Sqlite;
    }

    BackendFormat::Unknown
}