Use an hashmap instead of symlinks for cache

Cargo.lock

@@ -174,6 +174,12 @@ dependencies = [
  "rustc-demangle",
 ]
 
+[[package]]
+name = "base64"
+version = "0.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
+
 [[package]]
 name = "base64"
 version = "0.21.0"
@@ -276,7 +282,8 @@ dependencies = [
  "js-sys",
  "num-integer",
  "num-traits",
- "time",
+ "serde",
+ "time 0.1.45",
  "wasm-bindgen",
  "winapi",
 ]
@@ -944,6 +951,12 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fed44880c466736ef9a5c5b5facefb5ed0785676d0c02d612db14e54f0d84286"
 
+[[package]]
+name = "hex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
+
 [[package]]
 name = "iana-time-zone"
 version = "0.1.56"
@@ -1013,6 +1026,7 @@ checksum = "bd070e393353796e801d209ad339e89596eb4c8d430d18ede6a1cced8fafbd99"
 dependencies = [
  "autocfg",
  "hashbrown 0.12.3",
+ "serde",
 ]
 
 [[package]]
@@ -1047,6 +1061,12 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "itoa"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "453ad9f582a441959e5f0d088b02ce04cfe8d51a8eaf077f12ac6d3e94164ca6"
+
 [[package]]
 name = "jpeg-decoder"
 version = "0.3.0"
@@ -1637,6 +1657,9 @@ dependencies = [
  "regex",
  "resvg",
  "rustc-hash",
+ "serde",
+ "serde_json",
+ "serde_with",
  "stardust-xr-fusion",
  "stardust-xr-molecules",
  "tempdir",
@@ -1932,6 +1955,12 @@ dependencies = [
  "unicode-script",
 ]
 
+[[package]]
+name = "ryu"
+version = "1.0.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f91339c0467de62360649f8d3e185ca8de4224ff281f66000de5eb2a77a79041"
+
 [[package]]
 name = "same-file"
 version = "1.0.6"
@@ -1979,6 +2008,17 @@ dependencies = [
  "syn 2.0.15",
 ]
 
+[[package]]
+name = "serde_json"
+version = "1.0.94"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1c533a59c9d8a93a09c6ab31f0fd5e5f4dd1b8fc9434804029839884765d04ea"
+dependencies = [
+ "itoa",
+ "ryu",
+ "serde",
+]
+
 [[package]]
 name = "serde_repr"
 version = "0.1.12"
@@ -1990,6 +2030,34 @@ dependencies = [
  "syn 2.0.15",
 ]
 
+[[package]]
+name = "serde_with"
+version = "2.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85456ffac572dc8826334164f2fb6fb40a7c766aebe195a2a21ee69ee2885ecf"
+dependencies = [
+ "base64 0.13.1",
+ "chrono",
+ "hex",
+ "indexmap",
+ "serde",
+ "serde_json",
+ "serde_with_macros",
+ "time 0.3.20",
+]
+
+[[package]]
+name = "serde_with_macros"
+version = "2.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7cbcd6104f8a4ab6af7f6be2a0da6be86b9de3c401f6e86bb856ab2af739232f"
+dependencies = [
+ "darling",
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+]
+
 [[package]]
 name = "sharded-slab"
 version = "0.1.4"
@@ -2270,6 +2338,33 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "time"
+version = "0.3.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cd0cbfecb4d19b5ea75bb31ad904eb5b9fa13f21079c3b92017ebdf4999a5890"
+dependencies = [
+ "itoa",
+ "serde",
+ "time-core",
+ "time-macros",
+]
+
+[[package]]
+name = "time-core"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2e153e1f1acaef8acc537e68b44906d2db6436e2b35ac2c6b42640fff91f00fd"
+
+[[package]]
+name = "time-macros"
+version = "0.2.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fd80a657e71da814b8e5d60d3374fc6d35045062245d80224748ae522dd76f36"
+dependencies = [
+ "time-core",
+]
+
 [[package]]
 name = "tiny-skia"
 version = "0.8.4"
@@ -2492,7 +2587,7 @@ version = "0.29.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "63b6bb4e62619d9f68aa2d8a823fea2bff302340a1f2d45c264d5b0be170832e"
 dependencies = [
- "base64",
+ "base64 0.21.0",
  "data-url",
  "flate2",
  "imagesize",

Cargo.toml

@@ -20,6 +20,9 @@ nix = "0.26.1"
 regex = "1.7.1"
 resvg = "0.29.0"
 rustc-hash = "1.1.0"
+serde = "1.0.155"
+serde_json = "1.0.94"
+serde_with = "2.3.1"
 stardust-xr-fusion = "0.40.2"
 stardust-xr-molecules = "0.24.3"
 tokio = { version = "1.24.1", features = ["full"] }

src/xdg.rs

@@ -1,18 +1,68 @@
-use cached::proc_macro::cached;
 use color_eyre::eyre::Result;
+use lazy_static::lazy_static;
 use linicon;
 use regex::Regex;
 use resvg::render;
 use resvg::tiny_skia::{Pixmap, Transform};
 use resvg::usvg::{FitTo, Tree};
+use serde::{Deserialize, Serialize};
+use serde_json;
+use serde_with::serde_as;
+use std::collections::HashMap;
 use std::ffi::OsString;
 use std::fs::create_dir_all;
+use std::fs::File;
 use std::io::{BufRead, BufReader, ErrorKind};
-use std::os::unix::fs::symlink;
+use std::io::{Read, Write};
 use std::path::{Path, PathBuf};
 use std::str::FromStr;
+use std::sync::Mutex;
 use std::{env, fs};
 use walkdir::WalkDir;
+
+#[serde_as]
+#[derive(Deserialize, Serialize)]
+struct ImageCache {
+	path: PathBuf,
+	#[serde_as(as = "Vec<(_, _)>")]
+	pub map: HashMap<String, PathBuf>,
+}
+
+impl ImageCache {
+	fn new(path: PathBuf) -> Self {
+		if let Ok(mut file) = File::open(&path) {
+			let mut buf = vec![];
+			if file.read_to_end(&mut buf).is_ok() {
+				if let Ok(cache) = serde_json::from_slice(&buf[..]) {
+					return cache;
+				}
+			}
+		}
+
+		//There was no file, or the file failed to load, create a new World.
+		ImageCache {
+			path,
+			map: HashMap::new(),
+		}
+	}
+
+	fn insert(&mut self, k: String, v: PathBuf) {
+		self.map.insert(k, v);
+	}
+
+	fn save(&self) {
+		let mut f = File::create(&self.path).unwrap();
+		let buf = serde_json::to_vec(&self).unwrap();
+		f.write_all(&buf[..]).unwrap();
+	}
+}
+
+lazy_static! {
+	static ref IMAGE_CACHE: Mutex<ImageCache> = Mutex::new(ImageCache::new(
+		get_image_cache_dir().join("imagechache.map")
+	));
+}
+
 fn get_data_dirs() -> Vec<PathBuf> {
 	let xdg_data_dirs_str = std::env::var("XDG_DATA_DIRS").unwrap_or_default();
 
@@ -193,10 +243,11 @@ impl DesktopFile {
 			}
 		}
 
-		let cache_icon_path = get_image_cache_dir().join(icon_name).canonicalize();
+		if let Some(cache_icon_path) = IMAGE_CACHE.lock().unwrap().map.get(icon_name) {
-		if cache_icon_path.is_ok() {
+			if cache_icon_path.exists() {
-			if let Some(icon) = Icon::from_path(cache_icon_path.unwrap(), preferred_px_size) {
+				if let Some(icon) = Icon::from_path(cache_icon_path.to_owned(), 128) {
-				return vec![icon];
+					return vec![icon];
+				}
 			}
 		}
 
@@ -247,10 +298,28 @@ impl Icon {
 	}
 
 	pub fn cached_process(self, size: u16) -> Result<Icon, std::io::Error> {
-		let new_path =
+		if !IMAGE_CACHE.lock().unwrap().map.contains_key(
-			get_image_cache_dir().join(self.path.with_extension("").file_name().unwrap());
+			&self
-		if !new_path.exists() {
+				.path
-			_ = symlink(self.path.clone(), new_path);
+				.with_extension("")
+				.file_name()
+				.unwrap()
+				.to_str()
+				.unwrap()
+				.to_owned(),
+		) {
+			dbg!("Saving value in the DB");
+			IMAGE_CACHE.lock().unwrap().insert(
+				self.path
+					.with_extension("")
+					.file_name()
+					.unwrap()
+					.to_str()
+					.unwrap()
+					.to_owned(),
+				self.path.clone(),
+			);
+			IMAGE_CACHE.lock().unwrap().save();
 		}
 		match self.icon_type {
 			IconType::Svg => Ok(Icon::from_path(get_png_from_svg(self.path, size)?, size).unwrap()),
@@ -285,7 +354,6 @@ fn test_get_icon_path() {
 	));
 }
 
-#[cached]
 pub fn get_image_cache_dir() -> PathBuf {
 	let cache_dir;
 	if let Ok(xdg_cache_home) = std::env::var("XDG_CACHE_HOME") {