change header magics

src/segment/meta.rs

@@ -6,7 +6,7 @@ use crate::{
 use byteorder::{BigEndian, ReadBytesExt, WriteBytesExt};
 use std::io::{Read, Write};
 
-pub const METADATA_HEADER_MAGIC: &[u8] = &[b'F', b'J', b'L', b'L', b'S', b'M', b'D', b'1'];
+pub const METADATA_HEADER_MAGIC: &[u8] = &[b'V', b'L', b'O', b'G', b'S', b'M', b'D', b'1'];
 
 #[derive(Debug)]
 #[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize))]

src/segment/trailer.rs

@@ -7,7 +7,7 @@ use std::{
     path::Path,
 };
 
-pub const TRAILER_MAGIC: &[u8] = &[b'F', b'J', b'L', b'L', b'T', b'R', b'L', b'1'];
+pub const TRAILER_MAGIC: &[u8] = &[b'V', b'L', b'O', b'G', b'T', b'R', b'L', b'1'];
 pub const TRAILER_SIZE: usize = 256;
 
 #[derive(Debug)]

src/version.rs

@@ -31,7 +31,7 @@ impl TryFrom<u16> for Version {
     }
 }
 
-const MAGIC_BYTES: [u8; 3] = [b'F', b'J', b'L'];
+const MAGIC_BYTES: [u8; 3] = [b'V', b'L', b'G'];
 
 impl Version {
     // NOTE: Used in tests
@@ -79,14 +79,14 @@ mod tests {
     pub fn version_serialize() -> crate::Result<()> {
         let mut bytes = vec![];
         Version::V1.write_file_header(&mut bytes)?;
-        assert_eq!(bytes, &[b'F', b'J', b'L', 0, 1]);
+        assert_eq!(bytes, &[b'V', b'L', b'G', 0, 1]);
         Ok(())
     }
 
     #[test]
     #[allow(clippy::expect_used)]
     pub fn version_deserialize_success() {
-        let version = Version::parse_file_header(&[b'F', b'J', b'L', 0, 1]);
+        let version = Version::parse_file_header(&[b'V', b'L', b'G', 0, 1]);
         assert_eq!(version, Some(Version::V1));
     }