Use HashMap to detect duplicate

src/main.rs

@@ -19,6 +19,8 @@ use std::fmt;
 use std::thread;
 use std::sync::{Arc, Mutex};
 
+use std::collections::HashMap;
+
 const BUFFER_SIZE: usize = 1024;
 
 /* Note for myself : CLAP = _C_ommand _L_ine _A_rgument _P_arser */
@@ -245,12 +247,14 @@ fn main() {
     let chunk_size = (files_candidate_len / num_cpus) + 1;
     let modulus = files_candidate_len % num_cpus;
 
-    println!("Calculate {} file(s)", files_candidate_len);
+    println!("Compute Hash of {} file(s)", files_candidate_len);
     println!("Use {} chunk(s) of size {}", modulus, chunk_size);
     println!("Use {} chunk(s) of size {}", num_cpus - modulus, chunk_size - 1);
 
     let mut work = files_candidate.lock().unwrap();
 
+    println!("\n=Starting Hash compute in Thread");
+
     // Example from :
     // https://stackoverflow.com/questions/33818141/how-do-i-pass-disjoint-slices-from-a-vector-to-different-threads
     // Scoped threads allow the compiler to prove that no threads will outlive
@@ -281,16 +285,39 @@ fn main() {
         }
     });
 
+    println!("=End");
+
+    // Sort Unique element in hashmap
+    let uniques: HashMap<_, _> = work.iter()
+        .map(|c| (&c.hash, c.name.as_str()))
+        .collect();
+    let num_dups = work.len() - uniques.len();
+
+    println!("Duplicate : {}", num_dups);
+
+    // for (bytes, name) in uniques.iter() {
+    //     println!("Name : {:#?}", name);
+    //     print!("[");
+    //     for byte in *bytes {
+    //         print!("{:02x}", byte);
+    //     }
+    //     println!("]");
+    // }
+
+    println!("\n=Result");
+    for _i in work.iter() {
+    }
+    println!("=End");
+
     for i in work.iter() {
         println!("{}", i);
     }
 
-    // TODO with work !
-    // check for each hash duplication
-    // if so --> log to file and remove from list (store to done vector)
-
     t.fg(term::color::CYAN).unwrap();
     let end = PreciseTime::now();
+
+    println!("");
+    println!("=End");
     println!("{} seconds.", start.to(end));
 
     t.reset().unwrap();