3rd argument shows only exactly the same

README.md

@@ -9,9 +9,13 @@ Basic and not 100% accurate for finding duplicate code blocks in Rust projects.
 clone and run
 
 ```shell
-cargo run /home/foobar/Desktop/guac-rs
+cargo run --release /home/foobar/Desktop/guac-rs
 or
-cargo run /home/foobar/Desktop/guac-rs > out.md
+cargo run --release /home/foobar/Desktop/guac-rs > out.md
+
+pass whatever 3rd argument to show only exactly the same information on report
+
+cargo run --release /home/foobar/Desktop/guac-rs abcde > out.md
 ```
 
 [Example](./out.md)

src/main.rs

@@ -7,9 +7,12 @@ mod test;
 
 fn main() -> Result<(), io::Error> {
     let args: Vec<String> = env::args().collect();
+    let mut threshold = 0.98;
     if args.len() < 2 {
         eprintln!("Usage: dpc .  or dpc /home/foobar/rust_project");
         process::exit(1);
+    } else if args.len() == 3 {
+        threshold = 1.0;
     }
 
     let dir = &args[1];
@@ -45,7 +48,7 @@ fn main() -> Result<(), io::Error> {
 
     // Like the 150 and 2 above ^, this 0.98 is total opinionated...
     // if we lower this we have more "almost the same" stuff.
-    let similar_blocks = util::similar(filtered_code_blocks, 0.98);
+    let similar_blocks = util::similar(filtered_code_blocks, threshold);
     util::report(similar_blocks);
 
     Ok(())

src/util.rs

@@ -123,7 +123,7 @@ pub fn similar(blocks: Vec<String>, threshold: f64) -> Vec<(String, String, f64)
             let b2 = blocks[j].as_str();
             let similarity = sorensen_dice(b1, b2);
 
-            if similarity > threshold {
+            if similarity >= threshold {
                 let t = (b1.to_string(), b2.to_string(), similarity);
                 result.push(t);
             }