Start verification at most recently modified file

Author: abagshaw

src/main.rs

@@ -52,7 +52,7 @@ fn main() {
     }
 
     if matches.subcommand_matches("verify").is_some() {
-        match verify() {
+        match verify(None) {
             Ok(_) => {}
             Err(_) => std::process::exit(1),
         }
@@ -81,14 +81,14 @@ fn watch() -> notify::Result<()> {
     let mut watcher: RecommendedWatcher = Watcher::new(tx, Duration::from_secs(2))?;
     watcher.watch("./exercises", RecursiveMode::Recursive)?;
 
-    let _ignored = verify();
+    let _ignored = verify(None);
 
     loop {
         match rx.recv() {
             Ok(event) => match event {
                 DebouncedEvent::Create(b) | DebouncedEvent::Chmod(b) | DebouncedEvent::Write(b) => {
                     if b.extension() == Some(OsStr::new("rs")) {
-                        let _ignored = verify();
+                        let _ignored = verify(Some(b.as_path().to_str().unwrap()));
                     }
                 }
                 _ => {}

src/verify.rs

@@ -5,10 +5,22 @@ use std::fs;
 use std::process::Command;
 use toml::Value;
 
-pub fn verify() -> Result<(), ()> {
+pub fn verify(start_at: Option<&str>) -> Result<(), ()> {
     let toml: Value = fs::read_to_string("info.toml").unwrap().parse().unwrap();
     let tomlvec: &Vec<Value> = toml.get("exercises").unwrap().as_array().unwrap();
+    let mut hit_start_at = false;
+
     for i in tomlvec {
+        let path = i.get("path").unwrap().as_str().unwrap();
+
+        if let Some(start_at) = start_at {
+            if start_at.ends_with(path) {
+                hit_start_at = true;
+            } else if !hit_start_at {
+                continue;
+            }
+        }
+
         match i.get("mode").unwrap().as_str().unwrap() {
             "test" => test(i.get("path").unwrap().as_str().unwrap())?,
             "compile" => compile_only(i.get("path").unwrap().as_str().unwrap())?,