Replace `directories-next` dependency with `directories` (#4661)

`directories-next` was created because `directories` was not maintained
at the time. However, `directories` has gotten active maintainership
since, and it has received more updates than `directories-next`.

`directories` also has more recent downloads than its `next`
counterpart, so it might make sense to switch to it, to avoid
unnecessary duplicate dependencies, where a project depends transitively
on both `directories` and `directories-next`.

The main question is whether we depend on any specific behavior from
`directories-next`.

Cargo.lock

@@ -1107,24 +1107,24 @@ dependencies = [
 ]
 
 [[package]]
-name = "directories-next"
-version = "2.0.0"
+name = "directories"
+version = "5.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "339ee130d97a610ea5a5872d2bbb130fdf68884ff09d3028b81bec8a1ac23bbc"
+checksum = "9a49173b84e034382284f27f1af4dcbbd231ffa358c0fe316541a7337f376a35"
 dependencies = [
- "cfg-if",
- "dirs-sys-next",
+ "dirs-sys",
 ]
 
 [[package]]
-name = "dirs-sys-next"
-version = "0.1.2"
+name = "dirs-sys"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ebda144c4fe02d1f7ea1a7d9641b6fc6b580adcfa024ae48797ecdeb6825b4d"
+checksum = "520f05a5cbd335fae5a99ff7a6ab8627577660ee5cfd6a94a6a929b52ff0321c"
 dependencies = [
  "libc",
+ "option-ext",
  "redox_users",
- "winapi",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -1175,7 +1175,7 @@ version = "0.27.2"
 dependencies = [
  "ahash",
  "bytemuck",
- "directories-next",
+ "directories",
  "document-features",
  "egui",
  "egui-wgpu",
@@ -2669,6 +2669,12 @@ version = "11.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0ab1bc2a289d34bd04a330323ac98a1b4bc82c9d9fcb1e66b63caa84da26b575"
 
+[[package]]
+name = "option-ext"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "04744f49eae99ab78e0d5c0b603ab218f515ea8cfe5a456d7629ad883a3b6e7d"
+
 [[package]]
 name = "orbclient"
 version = "0.3.46"

crates/eframe/Cargo.toml

@@ -70,7 +70,7 @@ glow = [
 
 ## Enable saving app state to disk.
 persistence = [
-  "directories-next",
+  "directories",
   "egui-winit/serde",
   "egui/persistence",
   "ron",
@@ -159,7 +159,7 @@ image = { workspace = true, features = ["png"] } # Needed for app icon
 winit = { workspace = true, default-features = false, features = ["rwh_06"] }
 
 # optional native:
-directories-next = { version = "2", optional = true }
+directories = { version = "5", optional = true }
 egui-wgpu = { workspace = true, optional = true, features = [
   "winit",
 ] } # if wgpu is used, use it with winit

crates/eframe/src/epi.rs

@@ -367,7 +367,7 @@ pub struct NativeOptions {
     pub persist_window: bool,
 
     /// The folder where `eframe` will store the app state. If not set, eframe will get the paths
-    /// from [directories_next].
+    /// from [directories].
     pub persistence_path: Option<std::path::PathBuf>,
 }
 

crates/eframe/src/native/file_storage.rs

@@ -10,12 +10,12 @@ use std::{
 /// [`egui::ViewportBuilder::app_id`] of [`crate::NativeOptions::viewport`]
 /// or the title argument to [`crate::run_native`].
 ///
-/// On native the path is picked using [`directories_next::ProjectDirs::data_dir`](https://docs.rs/directories-next/2.0.0/directories_next/struct.ProjectDirs.html#method.data_dir) which is:
+/// On native the path is picked using [`directories::ProjectDirs::data_dir`](https://docs.rs/directories/5.0.1/directories/struct.ProjectDirs.html#method.data_dir) which is:
 /// * Linux:   `/home/UserName/.local/share/APP_ID`
 /// * macOS:   `/Users/UserName/Library/Application Support/APP_ID`
 /// * Windows: `C:\Users\UserName\AppData\Roaming\APP_ID`
 pub fn storage_dir(app_id: &str) -> Option<PathBuf> {
-    directories_next::ProjectDirs::from("", "", app_id)
+    directories::ProjectDirs::from("", "", app_id)
         .map(|proj_dirs| proj_dirs.data_dir().to_path_buf())
 }
 

deny.toml

@@ -52,7 +52,7 @@ skip = [
   { name = "libloading" },     # wgpu-hal itself depends on 0.8 while some of its dependencies, like ash and d3d12, depend on 0.7
   { name = "memoffset" },      # tiny dependency
   { name = "quick-xml" },      # old version via wayland-scanner
-  { name = "redox_syscall" },  # old version via directories-next
+  { name = "redox_syscall" },  # old version via winit
   { name = "spin" },           # old version via ring through rusttls and other libraries, newer for wgpu.
   { name = "time" },           # old version pulled in by unmaintianed crate 'chrono'
   { name = "windows" },        # old version via accesskit_windows