feat: compressing images in a separate blocking thread

README.md

@@ -42,11 +42,14 @@ cargo build --release
 ./target/release/yazi
 ```
 
+If you want to use your own config, copy the [config folder](https://github.com/sxyazi/yazi/tree/main/config) to `~/.config/yazi`, and modify it as you like.
+
 ## TODO
 
 - [x] Add example config for general usage, currently please see my [another repo](https://github.com/sxyazi/dotfiles/tree/main/yazi) instead
 - [x] Integration with fzf, zoxide for fast directory navigation
 - [x] Integration with fd, rg for fuzzy file searching
+- [ ] Documentation of commands and options
 - [ ] Support for Überzug++ for image previews with X11/wayland environment
 - [ ] Batch renaming support
 

src/core/manager/preview.rs

@@ -91,9 +91,9 @@ impl Preview {
 			(w.min(PREVIEW.max_width), h.min(PREVIEW.max_height))
 		};
 
-		let file = fs::read(path).await?;
+		let img = fs::read(path).await?;
 		tokio::task::spawn_blocking(move || -> Result<Vec<u8>> {
-			let img = image::load_from_memory(&file)?;
+			let img = image::load_from_memory(&img)?;
 			Kitty::image_show(if img.width() > w || img.height() > h {
 				img.resize(w, h, FilterType::Triangle)
 			} else {

src/core/tasks/precache.rs

@@ -1,6 +1,6 @@
 use std::path::{Path, PathBuf};
 
-use anyhow::Result;
+use anyhow::{Error, Result};
 use image::{imageops::FilterType, ImageFormat};
 use tokio::{fs, sync::mpsc};
 
@@ -60,17 +60,19 @@ impl Precache {
 					return Ok(self.sch.send(TaskOp::Adv(task.id, 1, 0))?);
 				}
 
-				let img = fs::read(&task.target).await.map(|b| image::load_from_memory(&b));
-				let img = if let Ok(Ok(img)) = img {
-					img
-				} else {
-					return Ok(self.sch.send(TaskOp::Adv(task.id, 1, 0))?);
-				};
+				let img = fs::read(&task.target).await;
+				tokio::task::spawn_blocking(move || {
+					let img = image::load_from_memory(&img?)?;
+					let (w, h) = (PREVIEW.max_width, PREVIEW.max_height);
+
+					if img.width() > w || img.height() > h {
+						img.resize(w, h, FilterType::Triangle).save_with_format(&cache, ImageFormat::Jpeg).ok();
+					}
+					Ok::<(), Error>(())
+				})
+				.await
+				.ok();
 
-				let (w, h) = (PREVIEW.max_width, PREVIEW.max_height);
-				if img.width() > w || img.height() > h {
-					img.resize(w, h, FilterType::Triangle).save_with_format(&cache, ImageFormat::Jpeg).ok();
-				}
 				self.sch.send(TaskOp::Adv(task.id, 1, 0))?;
 			}
 			PrecacheOp::Video(task) => {