U32 encoding handled in the same way as hex and base64. Although its …

…use is limited to crc32

src/classes.rs

@@ -43,6 +43,7 @@ pub enum OutputEncoding {
     Hex,
     Base64,
     Base32,
+    U32,
 }
 
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]

src/hasher.rs

@@ -63,19 +63,15 @@ pub fn hash_file_encoded<D: Digest>(
         OutputEncoding::Hex => hex::encode(h),
         OutputEncoding::Base64 => BASE64.encode(&h),
         OutputEncoding::Base32 => BASE32.encode(&h),
+        OutputEncoding::U32 => {
+            let number = BigEndian::read_u32(&h);
+            format!("{number:010}")
+        }
     };
 
     Ok(BasicHash(encoded))
 }
 
-/// Hash a file using CRC32, and return the result as a `BasicHash` u32
-#[inline]
-pub fn hash_file_u32<D: Digest>(filename: &str) -> anyhow::Result<BasicHash> {
-    let h = hash_file::<D>(filename)?;
-    let number = BigEndian::read_u32(&h);
-    Ok(BasicHash(format!("{number:010}")))
-}
-
 /// check if file exists
 pub fn file_exists(path: impl AsRef<Path>) -> bool {
     let path_ref = path.as_ref();

src/main.rs

@@ -14,7 +14,7 @@ use crate::classes::{
 use blake2::{Blake2b512, Blake2s256};
 use classes::OutputEncoding;
 use glob::GlobResult;
-use hasher::{file_exists, hash_file_encoded, hash_file_u32};
+use hasher::{file_exists, hash_file_encoded};
 use md5::Md5;
 use rayon::prelude::*;
 use sha1::Sha1;
@@ -238,7 +238,7 @@ fn file_hashes_mt(config: &ConfigSettings, paths: &[String]) {
 fn call_hasher(algo: HashAlgorithm, path: &str) -> anyhow::Result<BasicHash> {
     match algo {
         // special case, u32 encoded
-        HashAlgorithm::CRC32 => hash_file_u32::<crc32::Crc32>(path),
+        HashAlgorithm::CRC32 => hash_file_encoded::<crc32::Crc32>(path, OutputEncoding::U32),
         // old algorithms
         HashAlgorithm::MD5 => hash_file_encoded::<Md5>(path, OutputEncoding::Hex),
         HashAlgorithm::SHA1 => hash_file_encoded::<Sha1>(path, OutputEncoding::Hex),