main return more specific type

Cargo.lock

@@ -81,6 +81,12 @@ dependencies = [
  "windows-sys 0.59.0",
 ]
 
+[[package]]
+name = "anyhow"
+version = "1.0.95"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34ac096ce696dc2fcabef30516bb13c0a68a11d30131d3df6f04711467681b04"
+
 [[package]]
 name = "atom_syndication"
 version = "0.12.6"
@@ -1025,8 +1031,9 @@ dependencies = [
 
 [[package]]
 name = "packard"
-version = "0.0.1"
+version = "0.0.2"
 dependencies = [
+ "anyhow",
  "chrono",
  "clap",
  "futures",

Cargo.toml

@@ -16,6 +16,7 @@ toml = "0.8.19"
 xdg = "2.5.2"
 futures = "0.3.31"
 indicatif = "0.17.9"
+anyhow = "1.0.95"
 
 [profile.dev]
 opt-level = 0

src/data.rs

@@ -1,9 +1,9 @@
+use anyhow::{Context, Result};
 use chrono::{DateTime, Utc};
 use futures::future::join_all;
 use indicatif::ProgressBar;
 use reqwest::get;
 use rss::Channel;
-use std::error::Error;
 
 #[derive(Debug)]
 pub struct FeedItem {
@@ -13,9 +13,14 @@ pub struct FeedItem {
     pub pub_date: DateTime<Utc>,
 }
 
-async fn fetch_rss(url: &str, pb: &ProgressBar) -> Result<Channel, Box<dyn Error>> {
-    let response = get(url).await?.text().await?;
-    let channel = Channel::read_from(response.as_bytes())?;
+async fn fetch_rss(url: &str, pb: &ProgressBar) -> Result<Channel> {
+    let response = get(url)
+        .await
+        .context("Failed to send request")?
+        .text()
+        .await
+        .context("Failed to read response text")?;
+    let channel = Channel::read_from(response.as_bytes()).context("Failed to parse RSS feed")?;
     pb.inc(1);
     pb.set_message(format!("Processing: {}", channel.title));
     Ok(channel)

src/main.rs

@@ -1,13 +1,12 @@
 use indicatif::ProgressStyle;
-use std::error::Error;
-use tokio;
+use tokio::io;
 
 mod config;
 mod data;
 mod utils;
 
 #[tokio::main]
-async fn main() -> Result<(), Box<dyn Error>> {
+async fn main() -> Result<(), io::Error> {
     let config = config::validate_config();
     let args = config::parse_cli();
     let (count, skip_amount, list) = config::collate_values(args, &config);