Check formatting in CI (#2442)

* Check formatting in CI

* Fix existing fomatting inconsistencies

* Update PR template

.github/PULL_REQUEST_TEMPLATE.md

@@ -2,7 +2,7 @@
 
 2. [ ] Make sure that the changes are covered by unit-tests.
 
-3. [ ] Run `cargo fmt` on the changes.
+3. [ ] Run `cargo +nightly fmt` on the changes.
 
 4. [ ] Please put changelog entries **in the description of this Pull Request**
    if knowledge of this change could be valuable to users. No need to put the

.github/workflows/rust.yml

@@ -51,3 +51,11 @@ jobs:
       run: |
         cd examples
         cargo build --verbose
+  fmt:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Check formatting
+      run: |
+        rustup toolchain install nightly --component rustfmt
+        cargo +nightly fmt --check

.rustfmt.toml

@@ -1,2 +1,2 @@
-# imports_granularity = "Crate"
-# group_imports = "One"
+imports_granularity = "Crate"
+group_imports = "One"

examples/deferred/frame/ambient_lighting_system.rs

@@ -1,3 +1,4 @@
+use super::LightingVertex;
 use std::sync::Arc;
 use vulkano::{
     buffer::{Buffer, BufferCreateInfo, BufferUsage, Subbuffer},
@@ -31,8 +32,6 @@ use vulkano::{
     render_pass::Subpass,
 };
 
-use super::LightingVertex;
-
 /// Allows applying an ambient lighting to a scene.
 pub struct AmbientLightingSystem {
     gfx_queue: Arc<Queue>,

examples/deferred/frame/directional_lighting_system.rs

@@ -1,3 +1,4 @@
+use super::LightingVertex;
 use cgmath::Vector3;
 use std::sync::Arc;
 use vulkano::{
@@ -32,8 +33,6 @@ use vulkano::{
     render_pass::Subpass,
 };
 
-use super::LightingVertex;
-
 /// Allows applying a directional light source to a scene.
 pub struct DirectionalLightingSystem {
     gfx_queue: Arc<Queue>,

examples/deferred/frame/mod.rs

@@ -3,9 +3,8 @@
 // The main code is in the `system` module, while the other modules implement the different kinds
 // of lighting sources.
 
-use vulkano::{buffer::BufferContents, pipeline::graphics::vertex_input::Vertex};
-
 pub use self::system::{FrameSystem, Pass};
+use vulkano::{buffer::BufferContents, pipeline::graphics::vertex_input::Vertex};
 
 mod ambient_lighting_system;
 mod directional_lighting_system;

examples/deferred/frame/point_lighting_system.rs

@@ -1,3 +1,4 @@
+use super::LightingVertex;
 use cgmath::{Matrix4, Vector3};
 use std::sync::Arc;
 use vulkano::{
@@ -32,8 +33,6 @@ use vulkano::{
     render_pass::Subpass,
 };
 
-use super::LightingVertex;
-
 pub struct PointLightingSystem {
     gfx_queue: Arc<Queue>,
     vertex_buffer: Subbuffer<[LightingVertex]>,

vulkano/src/buffer/subbuffer.rs

@@ -24,7 +24,6 @@ use std::{
     sync::Arc,
     thread,
 };
-
 #[cfg(feature = "macros")]
 pub use vulkano_macros::BufferContents;
 

vulkano/src/lib.rs

@@ -152,6 +152,7 @@
 
 pub use ash::vk::Handle;
 use bytemuck::{Pod, Zeroable};
+pub use extensions::ExtensionProperties;
 pub use half;
 pub use library::{LoadingError, VulkanLibrary};
 use std::{
@@ -162,7 +163,7 @@ use std::{
     ops::Deref,
     sync::Arc,
 };
-pub use {extensions::ExtensionProperties, version::Version};
+pub use version::Version;
 
 #[macro_use]
 mod tests;

vulkano/src/macros.rs

@@ -999,4 +999,8 @@ macro_rules! try_opt {
     };
 }
 
-pub(crate) use {impl_id_counter, try_opt, vulkan_bitflags, vulkan_bitflags_enum, vulkan_enum};
+pub(crate) use impl_id_counter;
+pub(crate) use try_opt;
+pub(crate) use vulkan_bitflags;
+pub(crate) use vulkan_bitflags_enum;
+pub(crate) use vulkan_enum;

vulkano/src/pipeline/graphics/vertex_input/impl_vertex.rs

@@ -158,7 +158,6 @@ mod tests {
     use crate::format::Format;
     #[allow(deprecated)]
     use crate::pipeline::graphics::vertex_input::Vertex;
-
     use bytemuck::{Pod, Zeroable};
 
     #[test]

vulkano/src/pipeline/graphics/vertex_input/vertex.rs

@@ -105,9 +105,7 @@ impl VertexMemberInfo {
 
 #[cfg(test)]
 mod tests {
-    use crate::format::Format;
-    use crate::pipeline::graphics::vertex_input::Vertex;
-
+    use crate::{format::Format, pipeline::graphics::vertex_input::Vertex};
     use bytemuck::{Pod, Zeroable};
 
     #[test]

vulkano/src/swapchain/surface.rs

@@ -1534,8 +1534,7 @@ unsafe fn get_metal_layer_ios(ui_view: *mut c_void) -> IOSMetalLayer {
 #[cfg(target_os = "macos")]
 unsafe fn get_metal_layer_macos(ns_view: *mut c_void) -> *mut Object {
     use core_graphics_types::base::CGFloat;
-    use objc::runtime::YES;
-    use objc::runtime::{BOOL, NO};
+    use objc::runtime::{BOOL, NO, YES};
 
     let view: *mut Object = ns_view.cast();
     let main_layer: *mut Object = msg_send![view, layer];

vulkano/src/sync/fence.rs

@@ -33,8 +33,8 @@ use crate::{
     VulkanObject,
 };
 use smallvec::SmallVec;
-use std::fs::File;
 use std::{
+    fs::File,
     future::Future,
     mem::MaybeUninit,
     num::NonZeroU64,