Better error handling

src/main.rs

@@ -42,17 +42,17 @@ fn render(input: &str) -> String {
     skin.term_text(input).to_string()
 }
 
-async fn process_file(file: DirEntry, output_dir: PathBuf) {
+async fn process_file(file: DirEntry, output_dir: PathBuf) -> Result<(), std::io::Error> {
     let markdown: &str = &std::fs::read_to_string(file.path()).unwrap();
 
     let html_stripped = &remove_html(markdown);
     let links_replaced = &replace_links(html_stripped);
 
     let rendered = render(links_replaced);
-    write_file(output_dir, file, &rendered);
+    write_file(output_dir, file, &rendered)
 }
 
-fn write_file(output_dir: PathBuf, file: DirEntry, rendered: &str) {
+fn write_file(output_dir: PathBuf, file: DirEntry, rendered: &str) -> Result<(), std::io::Error> {
     let basename = file
         .path()
         .parent()
@@ -65,9 +65,15 @@ fn write_file(output_dir: PathBuf, file: DirEntry, rendered: &str) {
         .to_string();
     let name = basename.replace("awesome", "").replace("-", "");
 
-    let path = output_dir.clone().join(name);
+    let mut path = output_dir.clone().join(name.clone());
 
-    fs::write(path, rendered).expect("Error writing file!");
+    let mut i = 2;
+    while path.exists() {
+        path.set_file_name(name.clone() + &i.to_string());
+        i = i + 1;
+    }
+
+    fs::write(path, rendered)
 }
 
 #[tokio::main]