Cleanup

Cargo.lock

@@ -244,6 +244,7 @@ dependencies = [
 name = "cbz2pdf"
 version = "0.1.0"
 dependencies = [
+ "anyhow",
  "clap",
  "dialoguer",
  "image",

Cargo.toml

@@ -4,6 +4,7 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+anyhow = "1.0.89"
 clap = { version = "4.5.20", features = ["derive"] }
 dialoguer = "0.11.0"
 image = "0.25.2"

src/main.rs

@@ -1,3 +1,4 @@
+use anyhow::Result;
 use clap::{Parser, ValueHint};
 use dialoguer::theme::ColorfulTheme;
 use dialoguer::Confirm;
@@ -86,7 +87,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     };
 
     if proceed {
-        process_jobs(jobs);
+        process_jobs(jobs)?;
     }
 
     Ok(())
@@ -145,7 +146,7 @@ impl Job {
     }
 }
 
-fn convert_cbz(cbz_path: &Path, output_path: &Path) -> Result<(), Box<dyn std::error::Error>> {
+fn convert_cbz(cbz_path: &Path, output_path: &Path) -> Result<()> {
     let a4 = Rect::new(0.0, 0.0, 595.0, 842.0);
 
     let mut zip = ZipArchive::new(File::open(cbz_path)?)?;
@@ -180,13 +181,12 @@ fn convert_cbz(cbz_path: &Path, output_path: &Path) -> Result<(), Box<dyn std::e
     pdf.catalog(catalog_id).pages(page_tree_id);
 
     let mut pages = Vec::new();
-    let image_count: i32 = images.len().try_into().unwrap();
+    let image_count = images.len();
 
     for (pos, image) in images.iter().enumerate() {
-        let npos: i32 = pos.try_into().unwrap();
-        let page_id = Ref::new(npos + 10);
-        let image_id = Ref::new(image_count + 10 + npos);
-        let content_id = Ref::new(image_count * 3 + 10 + npos);
+        let page_id = Ref::new(pos as i32 + 10);
+        let image_id = Ref::new(image_count as i32 + 10 + pos as i32);
+        let content_id = Ref::new(image_count as i32 * 3 + 10 + pos as i32);
         pages.push(page_id);
         let mut page = pdf.page(page_id);
         let image_name = Name(b"Im1");
@@ -214,22 +214,19 @@ fn convert_cbz(cbz_path: &Path, output_path: &Path) -> Result<(), Box<dyn std::e
     }
 
     let page_count = pages.len();
-    pdf.pages(page_tree_id)
-        .kids(pages)
-        .count(page_count.try_into().unwrap());
+    pdf.pages(page_tree_id).kids(pages).count(page_count as i32);
 
     std::fs::write(output_path, pdf.finish())?;
 
     Ok(())
 }
 
-fn process_jobs(jobs: Vec<Job>) {
-    let pb = ProgressBar::new(jobs.len().try_into().unwrap());
+fn process_jobs(jobs: Vec<Job>) -> Result<()> {
+    let pb = ProgressBar::new(jobs.len() as u64);
     pb.enable_steady_tick(Duration::from_millis(300));
-    pb.set_style(
-        ProgressStyle::with_template("[{elapsed_precise}] {wide_bar} {pos:>7}/{len:7} {msg}")
-            .unwrap(),
-    );
+    pb.set_style(ProgressStyle::with_template(
+        "[{elapsed_precise}] {wide_bar} {pos:>7}/{len:7} {msg}",
+    )?);
 
     jobs.par_iter().for_each(|entry| {
         convert_cbz(&entry.cbz_path, &entry.pdf_path).unwrap();
@@ -237,4 +234,5 @@ fn process_jobs(jobs: Vec<Job>) {
     });
 
     pb.finish();
+    Ok(())
 }