Refactor and simplify feature flags

eframe/Cargo.toml

@@ -22,6 +22,9 @@ all-features = true
 [features]
 default = ["default_fonts"]
 
+# detect dark mode system preference
+dark-light = ["egui-winit/dark-light"]
+
 # If set, egui will use `include_bytes!` to bundle some fonts.
 # If you plan on specifying your own fonts you may disable this feature.
 default_fonts = ["egui/default_fonts"]
@@ -31,7 +34,6 @@ persistence = [
   "egui-winit/persistence",
   "egui_glow/persistence",
   "egui/persistence",
-  "epi/file_storage",
   "epi/persistence",
 ]
 
@@ -42,8 +44,6 @@ screen_reader = [
   "egui_web/screen_reader",
 ]
 
-dark-light = ["egui-winit/dark-light"] # detect dark mode system preference
-
 
 [dependencies]
 egui = { version = "0.17.0", path = "../egui", default-features = false }

egui-winit/Cargo.toml

@@ -20,12 +20,15 @@ all-features = true
 [features]
 default = ["clipboard", "dark-light", "links"]
 
+# implement bytemuck on most types.
+bytemuck = ["egui/bytemuck"]
+
 # enable cut/copy/paste to OS clipboard.
 # if disabled a clipboard will be simulated so you can still copy/paste within the egui app.
 clipboard = ["arboard"]
 
-# implement bytemuck on most types.
-bytemuck = ["egui/bytemuck"]
+# detect dark mode system preference
+dark-light = ["dep:dark-light"]
 
 # Only for `egui_glow` - the official eframe/epi backend.
 epi_backend = ["epi", "glow"]
@@ -52,7 +55,7 @@ winit = "0.26.1"
 epi = { version = "0.17.0", path = "../epi", optional = true }
 
 arboard = { version = "2.1", optional = true, default-features = false }
-dark-light = { version = "0.2.1", optional = true }                      # detect dark mode system preference
+dark-light = { version = "0.2.1", optional = true }
 glow = { version = "0.11", optional = true }
 serde = { version = "1.0", optional = true, features = ["derive"] }
 webbrowser = { version = "0.6", optional = true }

egui_glow/Cargo.toml

@@ -28,32 +28,32 @@ default = ["default_fonts"]
 
 # enable cut/copy/paste to OS clipboard.
 # if disabled a clipboard will be simulated so you can still copy/paste within the egui app.
-clipboard = ["egui-winit/clipboard"]
+clipboard = ["egui-winit?/clipboard"]
+
+# detect dark mode system preference
+dark-light = ["egui-winit?/dark-light"]
 
 # If set, egui will use `include_bytes!` to bundle some fonts.
 # If you plan on specifying your own fonts you may disable this feature.
 default_fonts = ["egui/default_fonts"]
 
 # enable opening links in a browser when an egui hyperlink is clicked.
-links = ["egui-winit/links"]
+links = ["egui-winit?/links"]
 
 # enable persisting native window options and egui memory
 persistence = [
-  "egui-winit/persistence",
+  "egui-winit?/persistence",
   "egui/persistence",
-  "epi?/file_storage",
   "epi?/persistence",
 ]
 
 # experimental support for a screen reader
-screen_reader = ["egui-winit/screen_reader"]
+screen_reader = ["egui-winit?/screen_reader"]
 
 # enable glutin/winit integration.
 # if you want to use glow painter on web disable this feature.
 winit = ["egui-winit", "glutin"]
 
-dark-light = ["egui-winit/dark-light"] # detect dark mode system preference
-
 
 [dependencies]
 egui = { version = "0.17.0", path = "../egui", default-features = false, features = [

epi/Cargo.toml

@@ -21,10 +21,9 @@ all-features = true
 
 [features]
 default = []
-# Enable the file_storage module for storing data to disk.
-file_storage = ["directories-next", "ron", "serde"]
+
 # Persist native window options and egui memory
-persistence = ["ron", "serde", "egui/persistence"]
+persistence = ["directories-next", "ron", "serde", "egui/persistence"]
 
 
 [dependencies]
@@ -33,6 +32,9 @@ glow = "0.11"
 tracing = "0.1"
 
 # Optional:
-directories-next = { version = "2", optional = true }
 ron = { version = "0.7", optional = true }
 serde = { version = "1", optional = true }
+
+# native:
+[target.'cfg(not(target_arch = "wasm32"))'.dependencies]
+directories-next = { version = "2", optional = true }

epi/src/lib.rs

@@ -9,7 +9,8 @@
 #![warn(missing_docs)] // Let's keep `epi` well-documented.
 
 /// File storage which can be used by native backends.
-#[cfg(feature = "file_storage")]
+#[cfg(not(target_arch = "wasm32"))]
+#[cfg(feature = "persistence")]
 pub mod file_storage;
 
 pub use egui; // Re-export for user convenience

sh/check.sh

@@ -24,7 +24,7 @@ cargo doc --document-private-items --no-deps --all-features
 (cd emath && cargo check --no-default-features)
 (cd epaint && cargo check --no-default-features)
 (cd epaint && cargo check --no-default-features --release)
-(cd egui && cargo check --no-default-features --features "serialize")
+(cd egui && cargo check --no-default-features --features "serde")
 (cd eframe && cargo check --no-default-features)
 (cd epi && cargo check --no-default-features)
 (cd egui_demo_lib && cargo check --no-default-features)
@@ -42,7 +42,7 @@ cargo doc --document-private-items --no-deps --all-features
 (cd egui_glium && cargo check --all-features)
 (cd egui_glow && cargo check --all-features)
 (cd egui_web && cargo check --all-features)
-# (cd egui-winit && cargo check --all-features) can't do, beacause of https://github.com/rust-lang/cargo/issues/8832
+(cd egui-winit && cargo check --all-features)
 (cd emath && cargo check --all-features)
 (cd epaint && cargo check --all-features)
 (cd epi && cargo check --all-features)