replace try operator with expect

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "nyf"
-version = "0.3.0"
+version = "0.3.1"
 authors = ["glyph <glyph@mycelial.technology>"]
 edition = "2018"
 description = "html splicer and rss generator"

src/main.rs

@@ -21,14 +21,14 @@
 //! element are spliced into the `[[ title ]]` tag of the base HTML template for each
 //! sub-directory template.
 //!
-use std::{error, fs, io, path::Path};
+use std::{fs, io, path::Path};
 
 // define the path for the template directory
 const TEMPLATE_DIR: &str = "./templates";
 // define the path for the generated site output
 const SITE_DIR: &str = "./site";
 
-fn main() -> Result<(), Box<dyn error::Error>> {
+fn main() {
     // read the base html template to a string
     let base = format!("{}/base.html", TEMPLATE_DIR);
     let base_path = Path::new(&base);
@@ -57,25 +57,31 @@ fn main() -> Result<(), Box<dyn error::Error>> {
         .expect("failed to write the root index.html file");
 
     // walk the template directory and collect paths for all files and sub-directories
-    let template_files = fs::read_dir(TEMPLATE_DIR)?
+    let template_files: Vec<_> = fs::read_dir(TEMPLATE_DIR)
+        .expect("failed to read template directory")
         .map(|res| res.map(|e| e.path()))
-        .collect::<Result<Vec<_>, io::Error>>()?;
+        .collect::<Result<Vec<_>, io::Error>>()
+        .expect("failed to collect template file paths");
 
     // loop through each file and sub-directory
     for entry in template_files {
         if entry.is_dir() {
             // replicate templates sub-directory structure in site output directory
-            let template_sub_dir_suffix = entry.strip_prefix(TEMPLATE_DIR)?;
+            let template_sub_dir_suffix = entry
+                .strip_prefix(TEMPLATE_DIR)
+                .expect("failed to strip prefix from template directory path");
             let site_sub_dir = Path::new(SITE_DIR).join(template_sub_dir_suffix);
             // create the sub-directory if it doesn't already exist
             if !site_sub_dir.is_dir() {
-                fs::create_dir(site_sub_dir)?;
+                fs::create_dir(site_sub_dir).expect("failed to create a site output sub-directory");
             }
             // read each file from the sub-diretory
-            for file in fs::read_dir(entry)? {
+            for file in fs::read_dir(entry).expect("failed to read file in template sub-directory")
-                let file = file?;
+            {
+                let file = file.unwrap();
                 let file_path = file.path();
-                let file_html = fs::read_to_string(&file_path)?;
+                let file_html = fs::read_to_string(&file_path)
+                    .expect("failed to read template html file to string");
                 // find the index of the h2 tag (represents the page title)
                 let mut title_start = file_html.find("<h2>").expect("<h2> tag not found");
                 // increment the index to represent the start of the title text
@@ -93,10 +99,9 @@ fn main() -> Result<(), Box<dyn error::Error>> {
                 // replace the template directory path with the site output path
                 let output_path = file_output_path.replace(TEMPLATE_DIR, SITE_DIR);
                 // trim whitespace from the end of the generated html and write to file
-                fs::write(output_path, file_output.trim())?
+                fs::write(output_path, file_output.trim())
+                    .expect("failed to write html file to site directory")
             }
         }
     }
-
-    Ok(())
 }