Better !

src/main.rs

@@ -2,7 +2,6 @@ extern crate clap;
 extern crate term;
 extern crate sha2;
 extern crate walkdir;
-extern crate generic_array;
 
 use sha2::{Sha256, Digest};
 
@@ -11,6 +10,7 @@ use std::process;
 use std::fs;
 use std::io::Read;
 use walkdir::WalkDir;
+use std::fmt;
 
 const BUFFER_SIZE: usize = 1024;
 
@@ -91,17 +91,30 @@ impl Args {
     }
 }
 
-struct FileToProcess<N: ArrayLength<u8>> {
-    hash: GenericArray<u8,N>,
+struct FileToProcess {
+    hash: Vec<u8>,
     name: String,
     realpath: String,
 }
 
+impl fmt::Display for FileToProcess {
+
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "[").unwrap();
+        for byte in &self.hash {
+            write!(f, "{:02x}", byte).unwrap();
+        }
+        write!(f, "] - {} ({})",
+               self.name,
+               self.realpath)
+    }
+}
+
 impl FileToProcess {
     /// From https://github.com/RustCrypto/hashes/blob/master/sha2/examples/sha256sum.rs
     /// Compute digest value for given `Reader` and print it
     /// On any error simply return without doing anything
-    fn hash<D: Digest + Default, R: Read>(&self, reader: &mut R, name: &str) {
+    fn hash<D: Digest + Default, R: Read>(&mut self, reader: &mut R) {
         let mut sh = D::default();
         let mut buffer = [0u8; BUFFER_SIZE];
 
@@ -115,20 +128,15 @@ impl FileToProcess {
                 break;
             }
         }
-        self.hash = sh.result();
-        self.print_result(&sh.result(), name);
-    }
 
-    /// Print digest result as hex string and name pair
-    fn print_result(&self, sum: &[u8], name: &str) {
-        for byte in sum {
-            print!("{:02x}", byte);
+        for i in sh.result() {
+            self.hash.push(i);
         }
-        println!("\t{}", name);
     }
 }
 
 fn main() {
+    let mut files_candidate = vec![];
     let mut t = term::stdout().unwrap();
     let matches = App::new("rdupe")
         .version("0.1.0")
@@ -196,7 +204,6 @@ fn main() {
     }
 
     // Output
-    let mut i = 0;
     for entry in WalkDir::new(&args.output)
         .into_iter()
         .filter_map(|e| e.ok())
@@ -207,20 +214,24 @@ fn main() {
 
         if ft.is_file() {
             if let Ok(mut file) = fs::File::open(&entry.path()) {
-                let a = FileToProcess<32> {
-                    name: format!("[{}] - {}",
-                                  i,
+                let mut a = FileToProcess {
+                    name: format!("{}",
                                   entry.path().display()),
+                    hash: vec![],
+                    realpath: String::from("TODO"),
                 };
-                a.hash::<Sha256, _>(&mut file,
-                                    &format!("[{}] - {}",
-                                             i,
-                                             entry.path().display()));
-                i += 1;
+                a.hash::<Sha256, _>(&mut file);
+                println!("{}", a);
+                files_candidate.push(a);
             }
         }
     }
 
+    for i in files_candidate {
+        println!("{}", i);
+    }
+
+
     // let inputs = fs::read_dir(&args.input).unwrap();
     // for path in inputs {
     //     let path_str = path.unwrap().path().into_os_string().into_string().unwrap();