Add bevy_dylib to force dynamic linking of bevy

This easily improve compilation time by 2x

Cargo.toml

@@ -1,90 +1,26 @@
 [package]
-name = "bevy"
+name = "bevy_examples"
 version = "0.3.0"
 edition = "2018"
 authors = [
     "Bevy Contributors <[email protected]>",
     "Carter Anderson <[email protected]>",
 ]
-description = "A refreshingly simple data-driven game engine and app framework"
+description = "Examples for the Bevy game engine"
 homepage = "https://bevyengine.org"
 repository = "https://github.com/bevyengine/bevy"
 license = "MIT"
 keywords = ["game", "engine", "gamedev", "graphics", "bevy"]
 categories = ["game-engines", "graphics", "gui", "rendering"]
-readme = "README.md"
 exclude = ["assets/**/*", "tools/**/*", ".github/**/*", "crates/**/*"]
 
-[features]
-default = [
-    "bevy_audio",
-    "bevy_dynamic_plugin",
-    "bevy_gilrs",
-    "bevy_gltf",
-    "bevy_wgpu",
-    "bevy_winit",
-    "render",
-    "png",
-    "hdr",
-    "mp3",
-    "x11",
-]
-
-profiler = ["bevy_ecs/profiler", "bevy_diagnostic/profiler"]
-wgpu_trace = ["bevy_wgpu/trace"]
-
-# Rendering support
-render = ["bevy_pbr", "bevy_render", "bevy_sprite", "bevy_text", "bevy_ui"]
-# Image format support for texture loading (PNG and HDR are enabled by default)
-png = ["bevy_render/png"]
-hdr = ["bevy_render/hdr"]
-
-# Audio format support (MP3 is enabled by default)
-mp3 = ["bevy_audio/mp3"]
-flac = ["bevy_audio/flac"]
-wav = ["bevy_audio/wav"]
-vorbis = ["bevy_audio/vorbis"]
-
-serialize = ["bevy_input/serialize"]
-
-# Display server protocol support (X11 is enabled by default)
-wayland = ["bevy_winit/wayland"]
-x11 = ["bevy_winit/x11"]
-
 [workspace]
 members = ["crates/*", "crates/bevy_ecs/hecs", "examples/ios"]
 exclude = ["benches"]
 
-[dependencies]
-# bevy
-bevy_app = { path = "crates/bevy_app", version = "0.3.0" }
-bevy_asset = { path = "crates/bevy_asset", version = "0.3.0" }
-bevy_type_registry = { path = "crates/bevy_type_registry", version = "0.3.0" }
-bevy_core = { path = "crates/bevy_core", version = "0.3.0" }
-bevy_diagnostic = { path = "crates/bevy_diagnostic", version = "0.3.0" }
-bevy_ecs = { path = "crates/bevy_ecs", version = "0.3.0" }
-bevy_input = { path = "crates/bevy_input", version = "0.3.0" }
-bevy_math = { path = "crates/bevy_math", version = "0.3.0" }
-bevy_property = { path = "crates/bevy_property", version = "0.3.0" }
-bevy_scene = { path = "crates/bevy_scene", version = "0.3.0" }
-bevy_transform = { path = "crates/bevy_transform", version = "0.3.0" }
-bevy_utils = { path = "crates/bevy_utils", version = "0.3.0" }
-bevy_window = { path = "crates/bevy_window", version = "0.3.0" }
-bevy_tasks = { path = "crates/bevy_tasks", version = "0.3.0" }
-# bevy (optional)
-bevy_audio = { path = "crates/bevy_audio", optional = true, version = "0.3.0" }
-bevy_gltf = { path = "crates/bevy_gltf", optional = true, version = "0.3.0" }
-bevy_pbr = { path = "crates/bevy_pbr", optional = true, version = "0.3.0" }
-bevy_render = { path = "crates/bevy_render", optional = true, version = "0.3.0" }
-bevy_dynamic_plugin = { path = "crates/bevy_dynamic_plugin", optional = true, version = "0.3.0" }
-bevy_sprite = { path = "crates/bevy_sprite", optional = true, version = "0.3.0" }
-bevy_text = { path = "crates/bevy_text", optional = true, version = "0.3.0" }
-bevy_ui = { path = "crates/bevy_ui", optional = true, version = "0.3.0" }
-bevy_wgpu = { path = "crates/bevy_wgpu", optional = true, version = "0.3.0" }
-bevy_winit = { path = "crates/bevy_winit", optional = true, version = "0.3.0" }
-bevy_gilrs = { path = "crates/bevy_gilrs", optional = true, version = "0.3.0" }
-
 [dev-dependencies]
+bevy = { path = "crates/bevy", version = "0.3.0" }
+bevy_dylib = { path = "crates/bevy_dylib", version = "0.3.0" }
 rand = "0.7.3"
 serde = { version = "1", features = ["derive"] }
 log = "0.4"

crates/bevy/Cargo.toml

@@ -0,0 +1,81 @@
+[package]
+name = "bevy"
+version = "0.3.0"
+edition = "2018"
+authors = [
+    "Bevy Contributors <[email protected]>",
+    "Carter Anderson <[email protected]>",
+]
+description = "A refreshingly simple data-driven game engine and app framework"
+homepage = "https://bevyengine.org"
+repository = "https://github.com/bevyengine/bevy"
+license = "MIT"
+keywords = ["game", "engine", "gamedev", "graphics", "bevy"]
+categories = ["game-engines", "graphics", "gui", "rendering"]
+readme = "../../README.md"
+
+[features]
+default = [
+    "bevy_audio",
+    "bevy_dynamic_plugin",
+    "bevy_gilrs",
+    "bevy_gltf",
+    "bevy_wgpu",
+    "bevy_winit",
+    "render",
+    "png",
+    "hdr",
+    "mp3",
+    "x11",
+]
+
+profiler = ["bevy_ecs/profiler", "bevy_diagnostic/profiler"]
+wgpu_trace = ["bevy_wgpu/trace"]
+
+# Rendering support
+render = ["bevy_pbr", "bevy_render", "bevy_sprite", "bevy_text", "bevy_ui"]
+# Image format support for texture loading (PNG and HDR are enabled by default)
+png = ["bevy_render/png"]
+hdr = ["bevy_render/hdr"]
+
+# Audio format support (MP3 is enabled by default)
+mp3 = ["bevy_audio/mp3"]
+flac = ["bevy_audio/flac"]
+wav = ["bevy_audio/wav"]
+vorbis = ["bevy_audio/vorbis"]
+
+serialize = ["bevy_input/serialize"]
+
+# Display server protocol support (X11 is enabled by default)
+wayland = ["bevy_winit/wayland"]
+x11 = ["bevy_winit/x11"]
+
+[dependencies]
+# bevy
+bevy_app = { path = "../bevy_app", version = "0.3.0" }
+bevy_asset = { path = "../bevy_asset", version = "0.3.0" }
+bevy_type_registry = { path = "../bevy_type_registry", version = "0.3.0" }
+bevy_core = { path = "../bevy_core", version = "0.3.0" }
+bevy_diagnostic = { path = "../bevy_diagnostic", version = "0.3.0" }
+bevy_ecs = { path = "../bevy_ecs", version = "0.3.0" }
+bevy_input = { path = "../bevy_input", version = "0.3.0" }
+bevy_math = { path = "../bevy_math", version = "0.3.0" }
+bevy_property = { path = "../bevy_property", version = "0.3.0" }
+bevy_scene = { path = "../bevy_scene", version = "0.3.0" }
+bevy_transform = { path = "../bevy_transform", version = "0.3.0" }
+bevy_utils = { path = "../bevy_utils", version = "0.3.0" }
+bevy_window = { path = "../bevy_window", version = "0.3.0" }
+bevy_tasks = { path = "../bevy_tasks", version = "0.3.0" }
+# bevy (optional)
+bevy_audio = { path = "../bevy_audio", optional = true, version = "0.3.0" }
+bevy_gltf = { path = "../bevy_gltf", optional = true, version = "0.3.0" }
+bevy_pbr = { path = "../bevy_pbr", optional = true, version = "0.3.0" }
+bevy_render = { path = "../bevy_render", optional = true, version = "0.3.0" }
+bevy_dynamic_plugin = { path = "../bevy_dynamic_plugin", optional = true, version = "0.3.0" }
+bevy_sprite = { path = "../bevy_sprite", optional = true, version = "0.3.0" }
+bevy_text = { path = "../bevy_text", optional = true, version = "0.3.0" }
+bevy_ui = { path = "../bevy_ui", optional = true, version = "0.3.0" }
+bevy_wgpu = { path = "../bevy_wgpu", optional = true, version = "0.3.0" }
+bevy_winit = { path = "../bevy_winit", optional = true, version = "0.3.0" }
+bevy_gilrs = { path = "../bevy_gilrs", optional = true, version = "0.3.0" }
+

crates/bevy/src/lib.rs

@@ -0,0 +1,174 @@
+//! [![](https://bevyengine.org/assets/bevy_logo_docs.svg)](https://bevyengine.org)
+//!
+//! Bevy is an open-source modular game engine built in Rust, with a focus on developer productivity and performance.
+//!
+//! Check out the [Bevy website](https://bevyengine.org) for more information, read the
+//! [Bevy Book](https://bevyengine.org/learn/book/introduction) for a step-by-step guide, and [engage with our
+//! community](https://bevyengine.org/community/) if you have any questions or ideas!
+//!
+//! ## Example
+//!Here is a simple "Hello World" Bevy app:
+//! ```
+//!use bevy::prelude::*;
+//!
+//!fn main() {
+//!    App::build()
+//!        .add_system(hello_world_system.system())
+//!        .run();
+//!}
+//!
+//!fn hello_world_system() {
+//!    println!("hello world");
+//!}
+//! ```
+
+//! Don't let the simplicity of the example above fool you. Bevy is a [fully featured game engine](https://bevyengine.org)
+//! and it gets more powerful every day!
+//!
+//! ### This Crate
+//! The `bevy` crate is just a container crate that makes it easier to consume Bevy components.
+//! The defaults provide a "full" engine experience, but you can easily enable / disable features
+//! in your project's `Cargo.toml` to meet your specific needs. See Bevy's `Cargo.toml` for a full list of features available.
+//!
+//! If you prefer, you can also consume the individual bevy crates directly.
+//! Each module in the root of this crate, except for the prelude, can be found on crates.io
+//! with `bevy_` appended to the front, e.g. `app` -> [`bevy_app`](https://docs.rs/bevy_app/*/bevy_app/).
+
+#![doc(
+    html_logo_url = "https://bevyengine.org/assets/icon.png",
+    html_favicon_url = "https://bevyengine.org/assets/icon.png"
+)]
+
+/// `use bevy::prelude::*;` to import common components, bundles, and plugins.
+pub mod prelude;
+
+mod default_plugins;
+pub use default_plugins::*;
+
+pub mod app {
+    //! Build bevy apps, create plugins, and read events.
+    pub use bevy_app::*;
+}
+
+pub mod asset {
+    //! Load and store assets and resources for Apps.
+    pub use bevy_asset::*;
+}
+
+pub mod core {
+    //! Contains core plugins and utilities for time.
+    pub use bevy_core::*;
+}
+
+pub mod diagnostic {
+    //! Useful diagnostic plugins and types for bevy apps.
+    pub use bevy_diagnostic::*;
+}
+
+pub mod ecs {
+    //! Bevy's entity-component-system.
+    pub use bevy_ecs::*;
+}
+
+pub mod input {
+    //! Resources and events for inputs, e.g. mouse/keyboard, touch, gamepads, etc.
+    pub use bevy_input::*;
+}
+
+pub mod math {
+    //! Math types (Vec3, Mat4, Quat, etc) and helpers.
+    pub use bevy_math::*;
+}
+
+pub mod property {
+    //! Dynamically interact with struct fields and names.
+    pub use bevy_property::*;
+}
+
+pub mod scene {
+    //! Save/load collections of entities and components to/from file.
+    pub use bevy_scene::*;
+}
+
+pub mod tasks {
+    //! Pools for async, IO, and compute tasks.
+    pub use bevy_tasks::*;
+}
+
+pub mod transform {
+    //! Local and global transforms (e.g. translation, scale, rotation).
+    pub use bevy_transform::*;
+}
+
+pub mod type_registry {
+    //! Registered types and components can be used when loading scenes.
+    pub use bevy_type_registry::*;
+}
+
+pub mod utils {
+    pub use bevy_utils::*;
+}
+
+pub mod window {
+    //! Configuration, creation, and management of one or more windows.
+    pub use bevy_window::*;
+}
+
+#[cfg(feature = "bevy_audio")]
+pub mod audio {
+    //! Provides types and plugins for audio playback.
+    pub use bevy_audio::*;
+}
+
+#[cfg(feature = "bevy_gltf")]
+pub mod gltf {
+    //! Support for GLTF file loading.
+    pub use bevy_gltf::*;
+}
+
+#[cfg(feature = "bevy_pbr")]
+pub mod pbr {
+    //! Physically based rendering.
+    //! **Note**: true PBR has not yet been implemented; the name `pbr` is aspirational.
+    pub use bevy_pbr::*;
+}
+
+#[cfg(feature = "bevy_render")]
+pub mod render {
+    //! Cameras, meshes, textures, shaders, and pipelines.
+    pub use bevy_render::*;
+}
+
+#[cfg(feature = "bevy_sprite")]
+pub mod sprite {
+    //! Items for sprites, rects, texture atlases, etc.
+    pub use bevy_sprite::*;
+}
+
+#[cfg(feature = "bevy_text")]
+pub mod text {
+    //! Text drawing, styling, and font assets.
+    pub use bevy_text::*;
+}
+
+#[cfg(feature = "bevy_ui")]
+pub mod ui {
+    //! User interface components and widgets.
+    pub use bevy_ui::*;
+}
+
+#[cfg(feature = "bevy_winit")]
+pub mod winit {
+    pub use bevy_winit::*;
+}
+
+#[cfg(feature = "bevy_wgpu")]
+pub mod wgpu {
+    //! A render backend utilizing [wgpu](https://github.com/gfx-rs/wgpu-rs).
+    pub use bevy_wgpu::*;
+}
+
+#[cfg(feature = "bevy_dynamic_plugin")]
+pub mod dynamic_plugin {
+    pub use bevy_dynamic_plugin::*;
+}

crates/bevy_dylib/Cargo.toml

@@ -0,0 +1,19 @@
+[package]
+name = "bevy_dylib"
+version = "0.3.0"
+edition = "2018"
+authors = [
+    "Bevy Contributors <[email protected]>",
+    "Carter Anderson <[email protected]>",
+]
+description = "Force the Bevy Engine to be dynamically linked for faster linking"
+homepage = "https://bevyengine.org"
+repository = "https://github.com/bevyengine/bevy"
+license = "MIT"
+keywords = ["bevy"]
+
+[lib]
+crate-type = ["dylib"]
+
+[dependencies]
+bevy = { path = "../bevy", version = "0.3.0", default-features = false }

crates/bevy_dylib/src/lib.rs

@@ -0,0 +1,5 @@
+//! Forces dynamic linking of Bevy
+
+// Force linking of the main bevy crate
+#[allow(unused_imports)]
+use bevy;

examples/2d/sprite.rs

@@ -1,4 +1,6 @@
 use bevy::prelude::*;
+#[allow(unused_imports)]
+use bevy_dylib;
 
 fn main() {
     App::build()

examples/2d/sprite_sheet.rs

@@ -1,4 +1,6 @@
 use bevy::prelude::*;
+#[allow(unused_imports)]
+use bevy_dylib;
 
 fn main() {
     App::build()

examples/2d/texture_atlas.rs

@@ -1,4 +1,6 @@
 use bevy::{asset::LoadState, prelude::*, sprite::TextureAtlasBuilder};
+#[allow(unused_imports)]
+use bevy_dylib;
 
 /// In this example we generate a new texture atlas (sprite sheet) from a folder containing individual sprites
 fn main() {