# Objective
Fix missing `TextBundle` (and many others) which are present in the main
crate as default features but optional in the sub-crate. See:
- https://docs.rs/bevy/0.13.0/bevy/ui/node_bundles/index.html
- https://docs.rs/bevy_ui/0.13.0/bevy_ui/node_bundles/index.html
~~There are probably other instances in other crates that I could track
down, but maybe "all-features = true" should be used by default in all
sub-crates? Not sure.~~ (There were many.) I only noticed this because
rust-analyzer's "open docs" features takes me to the sub-crate, not the
main one.
## Solution
Add "all-features = true" to docs.rs metadata for crates that use
features.
## Changelog
### Changed
- Unified features documented on docs.rs between main crate and
sub-crates
# Objective
`bevy_tasks` provides utilities for parallel mapping over slices. It can
be useful to have a chunk index available in the iteration function to
know which part of the original slice is being processed.
## Solution
Adds an index argument to the parallel map functions in `bevy_tasks`.
---
## Changelog
### Changed
- `par_chunk_map`, `par_splat_map`, `par_chunk_map_mut`, and
`par_splat_map_mut` now provide a chunk index during iteration.
## Migration Guide
Functions passed as arguments to `par_chunk_map`, `par_splat_map`,
`par_chunk_map_mut`, and `par_splat_map_mut` must now take an additional
index argument.
# Objective
`Scope::spawn`, `Scope::spawn_on_external`, and `Scope::spawn_on_scope`
have different signatures depending on whether the `multi-threaded`
feature is enabled. The single-threaded version has a stricter signature
that prevents sending the `Scope` itself to spawned tasks.
## Solution
Changed the lifetime constraints in the single-threaded signatures from
`'env` to `'scope` to match the multi-threaded version.
This was split off from #11906.
Fixes#12016.
Bump version after release
This PR has been auto-generated
Co-authored-by: Bevy Auto Releaser <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: François <mockersf@gmail.com>
# Objective
- The current implementations for `&Visibility == Visibility` and
`Visibility == &Visibility` are ambiguous, so they raise a warning for
being unconditionally recursive.
- `TaskPool`'s `LOCAL_EXECUTOR` thread local calls a `const` constructor
in a non-`const` context.
## Solution
- Make `&Visibility == Visibility` and `Visibility == &Visibility`
implementations use `Visibility == Visibility`.
- Wrap `LocalExecutor::new` in a special `const` block supported by
[`thread_local`](https://doc.rust-lang.org/stable/std/macro.thread_local.html).
---
This lints were found by running:
```shell
$ cargo clippy --workspace
```
There are a few other warnings that were more complicated, so I chose
not to include them in this PR.
<details>
<summary>Here they are...</summary>
```shell
warning: function cannot return without recursing
--> crates/bevy_utils/src/cow_arc.rs:92:5
|
92 | / fn eq(&self, other: &Self) -> bool {
93 | | self.deref().eq(other.deref())
94 | | }
| |_____^
|
note: recursive call site
--> crates/bevy_utils/src/cow_arc.rs:93:9
|
93 | self.deref().eq(other.deref())
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
warning: method `get_path` is never used
--> crates/bevy_reflect/src/serde/de.rs:26:8
|
25 | trait StructLikeInfo {
| -------------- method in this trait
26 | fn get_path(&self) -> &str;
| ^^^^^^^^
|
= note: `#[warn(dead_code)]` on by default
warning: methods `get_path` and `get_field` are never used
--> crates/bevy_reflect/src/serde/de.rs:34:8
|
33 | trait TupleLikeInfo {
| ------------- methods in this trait
34 | fn get_path(&self) -> &str;
| ^^^^^^^^
35 | fn get_field(&self, index: usize) -> Option<&UnnamedField>;
| ^^^^^^^^^
```
The other warnings are fixed by #11865.
</details>
# Objective
-
[`crossbeam::scope`](https://docs.rs/crossbeam/latest/crossbeam/fn.scope.html)
is soft-deprecated in favor of the standard library's implementation.
## Solution
- Replace reference in `TaskPool`'s docs to mention `std:🧵:scope`
instead.
# Objective
At the start of every schedule run, there's currently a guaranteed piece
of overhead as the async executor spawns the MultithreadeExecutor task
onto one of the ComputeTaskPool threads.
## Solution
Poll the executor once to immediately schedule systems without waiting
for the async executor, then spawn the task if and only if the executor
does not immediately terminate.
On a similar note, having the executor task immediately start executing
a system in the same async task might yield similar results over a
broader set of cases. However, this might be more involved, and may need
a solution like #8304.
# Objective
Currently the `missing_docs` lint is allowed-by-default and enabled at
crate level when their documentations is complete (see #3492).
This PR proposes to inverse this logic by making `missing_docs`
warn-by-default and mark crates with imcomplete docs allowed.
## Solution
Makes `missing_docs` warn at workspace level and allowed at crate level
when the docs is imcomplete.
# Objective
#8219 changed the target type of a `transmute` without changing the one
transmuting from ([see the relevant
diff](55e9ab7c92 (diff-11413fb2eeba97978379d325353d32aa76eefd0af0c8e9b50b7f394ddfda7a26R351-R355))),
making them incompatible. This PR fixes this by changing the initial
type to match the target one (modulo lifetimes).
## Solution
Change the type to be transmuted from to match the one transmuting into
(modulo lifetimes)
# Objective
- Update async channel to v2.
## Solution
- async channel doesn't support `send_blocking` on wasm anymore. So
don't compile the pipelined rendering plugin on wasm anymore.
- Replaces https://github.com/bevyengine/bevy/pull/10405
## Migration Guide
- The `PipelinedRendering` plugin is no longer exported on wasm. If you
are including it in your wasm builds you should remove it.
```rust
#[cfg(all(not(target_arch = "wasm32"))]
app.add_plugins(bevy_render::pipelined_rendering::PipelinedRenderingPlugin);
```
---------
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
# Objective
There are a lot of doctests that are `ignore`d for no documented reason.
And that should be fixed.
## Solution
I searched the bevy repo with the regex ` ```[a-z,]*ignore ` in order to
find all `ignore`d doctests. For each one of the `ignore`d doctests, I
did the following steps:
1. Attempt to remove the `ignored` attribute while still passing the
test. I did this by adding hidden dummy structs and imports.
2. If step 1 doesn't work, attempt to replace the `ignored` attribute
with the `no_run` attribute while still passing the test.
3. If step 2 doesn't work, keep the `ignored` attribute but add
documentation for why the `ignored` attribute was added.
---------
Co-authored-by: François <mockersf@gmail.com>
# Objective
- Update winit dependency to 0.29
## Changelog
### KeyCode changes
- Removed `ScanCode`, as it was [replaced by
KeyCode](https://github.com/rust-windowing/winit/blob/master/CHANGELOG.md#0292).
- `ReceivedCharacter.char` is now a `SmolStr`, [relevant
doc](https://docs.rs/winit/latest/winit/event/struct.KeyEvent.html#structfield.text).
- Changed most `KeyCode` values, and added more.
KeyCode has changed meaning. With this PR, it refers to physical
position on keyboard rather than the printed letter on keyboard keys.
In practice this means:
- On QWERTY keyboard layouts, nothing changes
- On any other keyboard layout, `KeyCode` no longer reflects the label
on key.
- This is "good". In bevy 0.12, when you used WASD for movement, users
with non-QWERTY keyboards couldn't play your game! This was especially
bad for non-latin keyboards. Now, WASD represents the physical keys. A
French player will press the ZQSD keys, which are near each other,
Kyrgyz players will use "Цфыв".
- This is "bad" as well. You can't know in advance what the label of the
key for input is. Your UI says "press WASD to move", even if in reality,
they should be pressing "ZQSD" or "Цфыв". You also no longer can use
`KeyCode` for text inputs. In any case, it was a pretty bad API for text
input. You should use `ReceivedCharacter` now instead.
### Other changes
- Use `web-time` rather than `instant` crate.
(https://github.com/rust-windowing/winit/pull/2836)
- winit did split `run_return` in `run_onDemand` and `pump_events`, I
did the same change in bevy_winit and used `pump_events`.
- Removed `return_from_run` from `WinitSettings` as `winit::run` now
returns on supported platforms.
- I left the example "return_after_run" as I think it's still useful.
- This winit change is done partly to allow to create a new window after
quitting all windows: https://github.com/emilk/egui/issues/1918 ; this
PR doesn't address.
- added `width` and `height` properties in the `canvas` from wasm
example
(https://github.com/bevyengine/bevy/pull/10702#discussion_r1420567168)
## Known regressions (important follow ups?)
- Provide an API for reacting when a specific key from current layout
was released.
- possible solutions: use winit::Key from winit::KeyEvent ; mapping
between KeyCode and Key ; or .
- We don't receive characters through alt+numpad (e.g. alt + 151 = "ù")
anymore ; reproduced on winit example "ime". maybe related to
https://github.com/rust-windowing/winit/issues/2945
- (windows) Window content doesn't refresh at all when resizing. By
reading https://github.com/rust-windowing/winit/issues/2900 ; I suspect
we should just fire a `window.request_redraw();` from `AboutToWait`, and
handle actual redrawing within `RedrawRequested`. I'm not sure how to
move all that code so I'd appreciate it to be a follow up.
- (windows) unreleased winit fix for using set_control_flow in
AboutToWait https://github.com/rust-windowing/winit/issues/3215 ; ⚠️ I'm
not sure what the implications are, but that feels bad 🤔
## Follow up
I'd like to avoid bloating this PR, here are a few follow up tasks
worthy of a separate PR, or new issue to track them once this PR is
closed, as they would either complicate reviews, or at risk of being
controversial:
- remove CanvasParentResizePlugin
(https://github.com/bevyengine/bevy/pull/10702#discussion_r1417068856)
- avoid mentionning explicitly winit in docs from bevy_window ?
- NamedKey integration on bevy_input:
https://github.com/rust-windowing/winit/pull/3143 introduced a new
NamedKey variant. I implemented it only on the converters but we'd
benefit making the same changes to bevy_input.
- Add more info in KeyboardInput
https://github.com/bevyengine/bevy/pull/10702#pullrequestreview-1748336313
- https://github.com/bevyengine/bevy/pull/9905 added a workaround on a
bug allegedly fixed by winit 0.29. We should check if it's still
necessary.
- update to raw_window_handle 0.6
- blocked by wgpu
- Rename `KeyCode` to `PhysicalKeyCode`
https://github.com/bevyengine/bevy/pull/10702#discussion_r1404595015
- remove `instant` dependency, [replaced
by](https://github.com/rust-windowing/winit/pull/2836) `web_time`), we'd
need to update to :
- fastrand >= 2.0
- [`async-executor`](https://github.com/smol-rs/async-executor) >= 1.7
- [`futures-lite`](https://github.com/smol-rs/futures-lite) >= 2.0
- Verify license, see
[discussion](https://github.com/bevyengine/bevy/pull/8745#discussion_r1402439800)
- we might be missing a short notice or description of changes made
- Consider using https://github.com/rust-windowing/cursor-icon directly
rather than vendoring it in bevy.
- investigate [this
unwrap](https://github.com/bevyengine/bevy/pull/8745#discussion_r1387044986)
(`winit_window.canvas().unwrap();`)
- Use more good things about winit's update
- https://github.com/bevyengine/bevy/pull/10689#issuecomment-1823560428
## Migration Guide
This PR should have one.
# Objective
- Shorten paths by removing unnecessary prefixes
## Solution
- Remove the prefixes from many paths which do not need them. Finding
the paths was done automatically using built-in refactoring tools in
Jetbrains RustRover.
# Objective
Updates [`futures-lite`](https://github.com/smol-rs/futures-lite) in
bevy_tasks to the next major version (1 -> 2).
Also removes the duplication of `futures-lite`, as `async-fs` requires v
2, so there are currently 2 copies of futures-lite in the dependency
tree.
Futures-lite has received [a number of
updates](https://github.com/smol-rs/futures-lite/blob/master/CHANGELOG.md)
since bevy's current version `1.4`.
---------
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
Co-authored-by: Mike <mike.hsu@gmail.com>
# Objective
Enables warning on `clippy::undocumented_unsafe_blocks` across the
workspace rather than only in `bevy_ecs`, `bevy_transform` and
`bevy_utils`. This adds a little awkwardness in a few areas of code that
have trivial safety or explain safety for multiple unsafe blocks with
one comment however automatically prevents these comments from being
missed.
## Solution
This adds `undocumented_unsafe_blocks = "warn"` to the workspace
`Cargo.toml` and fixes / adds a few missed safety comments. I also added
`#[allow(clippy::undocumented_unsafe_blocks)]` where the safety is
explained somewhere above.
There are a couple of safety comments I added I'm not 100% sure about in
`bevy_animation` and `bevy_render/src/view` and I'm not sure about the
use of `#[allow(clippy::undocumented_unsafe_blocks)]` compared to adding
comments like `// SAFETY: See above`.
# Objective
- Fix adding `#![allow(clippy::type_complexity)]` everywhere. like #9796
## Solution
- Use the new [lints] table that will land in 1.74
(https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#lints)
- inherit lint to the workspace, crates and examples.
```
[lints]
workspace = true
```
## Changelog
- Bump rust version to 1.74
- Enable lints table for the workspace
```toml
[workspace.lints.clippy]
type_complexity = "allow"
```
- Allow type complexity for all crates and examples
```toml
[lints]
workspace = true
```
---------
Co-authored-by: Martín Maita <47983254+mnmaita@users.noreply.github.com>
# Objective
- When compiling bevy for both singlethreaded and multithreaded contexts
and using `Task` directly, you can run into errors where you expect a
`Task` to be returned but `FakeTask` is instead. Due to `FakeTask` being
private the only solution is to ignore the return at all however because
it *is* returned that isn't totally clear. The error is confusing and
doesn't provide a solution or help figuring it out.
## Solution
- Made `FakeTask` public and added brief documentation providing a use
(none) that helps guide usage (no usage) of FakeTask.
Preparing next release
This PR has been auto-generated
---------
Co-authored-by: Bevy Auto Releaser <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: François <mockersf@gmail.com>
Updates the requirements on
[async-io](https://github.com/smol-rs/async-io) to permit the latest
version.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/smol-rs/async-io/releases">async-io's
releases</a>.</em></p>
<blockquote>
<h2>v2.0.0</h2>
<ul>
<li><strong>Breaking:</strong> <code>Async::new()</code> now takes types
that implement <code>AsFd</code>/<code>AsSocket</code> instead of
<code>AsRawFd</code>/<code>AsRawSocket</code>, in order to implement I/O
safety. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/142">#142</a>)</li>
<li><strong>Breaking:</strong> <code>Async::get_mut()</code>,
<code>Async::read_with_mut()</code> and
<code>Async::write_with_mut()</code> are now <code>unsafe</code>. The
underlying source is technically "borrowed" by the polling
instance, so moving it out would be unsound. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/142">#142</a>)</li>
<li>Expose miscellaneous <code>kqueue</code> filters in the
<code>os::kqueue</code> module. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/112">#112</a>)</li>
<li>Expose a way to get the underlying <code>Poller</code>'s file
descriptor on Unix. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/125">#125</a>)</li>
<li>Add a new <code>Async::new_nonblocking</code> method to allow users
to avoid duplicating an already nonblocking socket. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/159">#159</a>)</li>
<li>Remove the unused <code>fastrand</code> and <code>memchr</code>
dependencies. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/131">#131</a>)</li>
<li>Use <code>tracing</code> instead of <code>log</code>. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/140">#140</a>)</li>
<li>Support ESP-IDF. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/144">#144</a>)</li>
<li>Optimize the <code>block_on</code> function to reduce allocation,
leading to a slight performance improvement. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/149">#149</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/smol-rs/async-io/blob/master/CHANGELOG.md">async-io's
changelog</a>.</em></p>
<blockquote>
<h1>Version 2.0.0</h1>
<ul>
<li><strong>Breaking:</strong> <code>Async::new()</code> now takes types
that implement <code>AsFd</code>/<code>AsSocket</code> instead of
<code>AsRawFd</code>/<code>AsRawSocket</code>, in order to implement I/O
safety. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/142">#142</a>)</li>
<li><strong>Breaking:</strong> <code>Async::get_mut()</code>,
<code>Async::read_with_mut()</code> and
<code>Async::write_with_mut()</code> are now <code>unsafe</code>. The
underlying source is technically "borrowed" by the polling
instance, so moving it out would be unsound. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/142">#142</a>)</li>
<li>Expose miscellaneous <code>kqueue</code> filters in the
<code>os::kqueue</code> module. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/112">#112</a>)</li>
<li>Expose a way to get the underlying <code>Poller</code>'s file
descriptor on Unix. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/125">#125</a>)</li>
<li>Add a new <code>Async::new_nonblocking</code> method to allow users
to avoid duplicating an already nonblocking socket. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/159">#159</a>)</li>
<li>Remove the unused <code>fastrand</code> and <code>memchr</code>
dependencies. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/131">#131</a>)</li>
<li>Use <code>tracing</code> instead of <code>log</code>. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/140">#140</a>)</li>
<li>Support ESP-IDF. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/144">#144</a>)</li>
<li>Optimize the <code>block_on</code> function to reduce allocation,
leading to a slight performance improvement. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/149">#149</a>)</li>
</ul>
<h1>Version 1.13.0</h1>
<ul>
<li>Use <a
href="https://crates.io/crates/rustix/"><code>rustix</code></a> instead
of <a href="https://crates.io/crates/libc/"><code>libc</code></a>/<a
href="https://crates.io/crates/windows-sys/"><code>windows-sys</code></a>
for system calls (<a
href="https://redirect.github.com/smol-rs/async-io/issues/76">#76</a>)</li>
<li>Add a <code>will_fire</code> method to <code>Timer</code> to test if
it will ever fire (<a
href="https://redirect.github.com/smol-rs/async-io/issues/106">#106</a>)</li>
<li>Reduce syscalls in <code>Async::new</code> (<a
href="https://redirect.github.com/smol-rs/async-io/issues/107">#107</a>)</li>
<li>Improve the drop ergonomics of <code>Readable</code> and
<code>Writable</code> (<a
href="https://redirect.github.com/smol-rs/async-io/issues/109">#109</a>)</li>
<li>Change the "<code>wepoll</code>" in documentation to
"<code>IOCP</code>" (<a
href="https://redirect.github.com/smol-rs/async-io/issues/116">#116</a>)</li>
</ul>
<h1>Version 1.12.0</h1>
<ul>
<li>Switch from <code>winapi</code> to <code>windows-sys</code> (<a
href="https://redirect.github.com/smol-rs/async-io/issues/102">#102</a>)</li>
</ul>
<h1>Version 1.11.0</h1>
<ul>
<li>Update <code>concurrent-queue</code> to v2. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/99">#99</a>)</li>
</ul>
<h1>Version 1.10.0</h1>
<ul>
<li>Remove the dependency on the <code>once_cell</code> crate to restore
the MSRV. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/95">#95</a>)</li>
</ul>
<h1>Version 1.9.0</h1>
<ul>
<li>Fix panic on very large durations. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/87">#87</a>)</li>
<li>Add <code>Timer::never</code> (<a
href="https://redirect.github.com/smol-rs/async-io/issues/87">#87</a>)</li>
</ul>
<h1>Version 1.8.0</h1>
<ul>
<li>Implement I/O safety traits on Rust 1.63+ (<a
href="https://redirect.github.com/smol-rs/async-io/issues/84">#84</a>)</li>
</ul>
<h1>Version 1.7.0</h1>
<ul>
<li>Process timers set for exactly <code>now</code>. (<a
href="https://redirect.github.com/smol-rs/async-io/issues/73">#73</a>)</li>
</ul>
<h1>Version 1.6.0</h1>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="7e89eec4d1"><code>7e89eec</code></a>
v2.0.0</li>
<li><a
href="356431754c"><code>3564317</code></a>
tests: Add test for <a
href="https://redirect.github.com/smol-rs/async-io/issues/154">#154</a></li>
<li><a
href="a5da16f072"><code>a5da16f</code></a>
Expose Async::new_nonblocking</li>
<li><a
href="0f2af634d8"><code>0f2af63</code></a>
Avoid needless set_nonblocking calls</li>
<li><a
href="62e3454f38"><code>62e3454</code></a>
Migrate to Rust 2021 (<a
href="https://redirect.github.com/smol-rs/async-io/issues/160">#160</a>)</li>
<li><a
href="59ee2ea27c"><code>59ee2ea</code></a>
Use set_nonblocking in Async::new on Windows (<a
href="https://redirect.github.com/smol-rs/async-io/issues/157">#157</a>)</li>
<li><a
href="d5bc619021"><code>d5bc619</code></a>
Remove needless as_fd/as_socket calls (<a
href="https://redirect.github.com/smol-rs/async-io/issues/158">#158</a>)</li>
<li><a
href="0b5016e567"><code>0b5016e</code></a>
m: Replace socket2 calls with rustix</li>
<li><a
href="8c3c3bd80b"><code>8c3c3bd</code></a>
m: Optimize block_on by caching Parker and Waker</li>
<li><a
href="1b1466a6c1"><code>1b1466a</code></a>
Update this crate to use the new polling breaking changes (<a
href="https://redirect.github.com/smol-rs/async-io/issues/142">#142</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/smol-rs/async-io/compare/v1.13.0...v2.0.0">compare
view</a></li>
</ul>
</details>
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# Objective
Reduce code duplication and improve APIs of Bevy's [global
taskpools](https://github.com/bevyengine/bevy/blob/main/crates/bevy_tasks/src/usages.rs).
## Solution
- As all three of the global taskpools have identical implementations
and only differ in their identifiers, this PR moves the implementation
into a macro to reduce code duplication.
- The `init` method is renamed to `get_or_init` to more accurately
reflect what it really does.
- Add a new `try_get` method that just returns `None` when the pool is
uninitialized, to complement the other getter methods.
- Minor documentation improvements to accompany the above changes.
---
## Changelog
- Added a new `try_get` method to the global TaskPools
- The global TaskPools' `init` method has been renamed to `get_or_init`
for clarity
- Documentation improvements
## Migration Guide
- Uses of `ComputeTaskPool::init`, `AsyncComputeTaskPool::init` and
`IoTaskPool::init` should be changed to `::get_or_init`.
This adds support for **Multiple Asset Sources**. You can now register a
named `AssetSource`, which you can load assets from like you normally
would:
```rust
let shader: Handle<Shader> = asset_server.load("custom_source://path/to/shader.wgsl");
```
Notice that `AssetPath` now supports `some_source://` syntax. This can
now be accessed through the `asset_path.source()` accessor.
Asset source names _are not required_. If one is not specified, the
default asset source will be used:
```rust
let shader: Handle<Shader> = asset_server.load("path/to/shader.wgsl");
```
The behavior of the default asset source has not changed. Ex: the
`assets` folder is still the default.
As referenced in #9714
## Why?
**Multiple Asset Sources** enables a number of often-asked-for
scenarios:
* **Loading some assets from other locations on disk**: you could create
a `config` asset source that reads from the OS-default config folder
(not implemented in this PR)
* **Loading some assets from a remote server**: you could register a new
`remote` asset source that reads some assets from a remote http server
(not implemented in this PR)
* **Improved "Binary Embedded" Assets**: we can use this system for
"embedded-in-binary assets", which allows us to replace the old
`load_internal_asset!` approach, which couldn't support asset
processing, didn't support hot-reloading _well_, and didn't make
embedded assets accessible to the `AssetServer` (implemented in this pr)
## Adding New Asset Sources
An `AssetSource` is "just" a collection of `AssetReader`, `AssetWriter`,
and `AssetWatcher` entries. You can configure new asset sources like
this:
```rust
app.register_asset_source(
"other",
AssetSource::build()
.with_reader(|| Box::new(FileAssetReader::new("other")))
)
)
```
Note that `AssetSource` construction _must_ be repeatable, which is why
a closure is accepted.
`AssetSourceBuilder` supports `with_reader`, `with_writer`,
`with_watcher`, `with_processed_reader`, `with_processed_writer`, and
`with_processed_watcher`.
Note that the "asset source" system replaces the old "asset providers"
system.
## Processing Multiple Sources
The `AssetProcessor` now supports multiple asset sources! Processed
assets can refer to assets in other sources and everything "just works".
Each `AssetSource` defines an unprocessed and processed `AssetReader` /
`AssetWriter`.
Currently this is all or nothing for a given `AssetSource`. A given
source is either processed or it is not. Later we might want to add
support for "lazy asset processing", where an `AssetSource` (such as a
remote server) can be configured to only process assets that are
directly referenced by local assets (in order to save local disk space
and avoid doing extra work).
## A new `AssetSource`: `embedded`
One of the big features motivating **Multiple Asset Sources** was
improving our "embedded-in-binary" asset loading. To prove out the
**Multiple Asset Sources** implementation, I chose to build a new
`embedded` `AssetSource`, which replaces the old `load_interal_asset!`
system.
The old `load_internal_asset!` approach had a number of issues:
* The `AssetServer` was not aware of (or capable of loading) internal
assets.
* Because internal assets weren't visible to the `AssetServer`, they
could not be processed (or used by assets that are processed). This
would prevent things "preprocessing shaders that depend on built in Bevy
shaders", which is something we desperately need to start doing.
* Each "internal asset" needed a UUID to be defined in-code to reference
it. This was very manual and toilsome.
The new `embedded` `AssetSource` enables the following pattern:
```rust
// Called in `crates/bevy_pbr/src/render/mesh.rs`
embedded_asset!(app, "mesh.wgsl");
// later in the app
let shader: Handle<Shader> = asset_server.load("embedded://bevy_pbr/render/mesh.wgsl");
```
Notice that this always treats the crate name as the "root path", and it
trims out the `src` path for brevity. This is generally predictable, but
if you need to debug you can use the new `embedded_path!` macro to get a
`PathBuf` that matches the one used by `embedded_asset`.
You can also reference embedded assets in arbitrary assets, such as WGSL
shaders:
```rust
#import "embedded://bevy_pbr/render/mesh.wgsl"
```
This also makes `embedded` assets go through the "normal" asset
lifecycle. They are only loaded when they are actually used!
We are also discussing implicitly converting asset paths to/from shader
modules, so in the future (not in this PR) you might be able to load it
like this:
```rust
#import bevy_pbr::render::mesh::Vertex
```
Compare that to the old system!
```rust
pub const MESH_SHADER_HANDLE: Handle<Shader> = Handle::weak_from_u128(3252377289100772450);
load_internal_asset!(app, MESH_SHADER_HANDLE, "mesh.wgsl", Shader::from_wgsl);
// The mesh asset is the _only_ accessible via MESH_SHADER_HANDLE and _cannot_ be loaded via the AssetServer.
```
## Hot Reloading `embedded`
You can enable `embedded` hot reloading by enabling the
`embedded_watcher` cargo feature:
```
cargo run --features=embedded_watcher
```
## Improved Hot Reloading Workflow
First: the `filesystem_watcher` cargo feature has been renamed to
`file_watcher` for brevity (and to match the `FileAssetReader` naming
convention).
More importantly, hot asset reloading is no longer configured in-code by
default. If you enable any asset watcher feature (such as `file_watcher`
or `rust_source_watcher`), asset watching will be automatically enabled.
This removes the need to _also_ enable hot reloading in your app code.
That means you can replace this:
```rust
app.add_plugins(DefaultPlugins.set(AssetPlugin::default().watch_for_changes()))
```
with this:
```rust
app.add_plugins(DefaultPlugins)
```
If you want to hot reload assets in your app during development, just
run your app like this:
```
cargo run --features=file_watcher
```
This means you can use the same code for development and deployment! To
deploy an app, just don't include the watcher feature
```
cargo build --release
```
My intent is to move to this approach for pretty much all dev workflows.
In a future PR I would like to replace `AssetMode::ProcessedDev` with a
`runtime-processor` cargo feature. We could then group all common "dev"
cargo features under a single `dev` feature:
```sh
# this would enable file_watcher, embedded_watcher, runtime-processor, and more
cargo run --features=dev
```
## AssetMode
`AssetPlugin::Unprocessed`, `AssetPlugin::Processed`, and
`AssetPlugin::ProcessedDev` have been replaced with an `AssetMode` field
on `AssetPlugin`.
```rust
// before
app.add_plugins(DefaultPlugins.set(AssetPlugin::Processed { /* fields here */ })
// after
app.add_plugins(DefaultPlugins.set(AssetPlugin { mode: AssetMode::Processed, ..default() })
```
This aligns `AssetPlugin` with our other struct-like plugins. The old
"source" and "destination" `AssetProvider` fields in the enum variants
have been replaced by the "asset source" system. You no longer need to
configure the AssetPlugin to "point" to custom asset providers.
## AssetServerMode
To improve the implementation of **Multiple Asset Sources**,
`AssetServer` was made aware of whether or not it is using "processed"
or "unprocessed" assets. You can check that like this:
```rust
if asset_server.mode() == AssetServerMode::Processed {
/* do something */
}
```
Note that this refactor should also prepare the way for building "one to
many processed output files", as it makes the server aware of whether it
is loading from processed or unprocessed sources. Meaning we can store
and read processed and unprocessed assets differently!
## AssetPath can now refer to folders
The "file only" restriction has been removed from `AssetPath`. The
`AssetServer::load_folder` API now accepts an `AssetPath` instead of a
`Path`, meaning you can load folders from other asset sources!
## Improved AssetPath Parsing
AssetPath parsing was reworked to support sources, improve error
messages, and to enable parsing with a single pass over the string.
`AssetPath::new` was replaced by `AssetPath::parse` and
`AssetPath::try_parse`.
## AssetWatcher broken out from AssetReader
`AssetReader` is no longer responsible for constructing `AssetWatcher`.
This has been moved to `AssetSourceBuilder`.
## Duplicate Event Debouncing
Asset V2 already debounced duplicate filesystem events, but this was
_input_ events. Multiple input event types can produce the same _output_
`AssetSourceEvent`. Now that we have `embedded_watcher`, which does
expensive file io on events, it made sense to debounce output events
too, so I added that! This will also benefit the AssetProcessor by
preventing integrity checks for duplicate events (and helps keep the
noise down in trace logs).
## Next Steps
* **Port Built-in Shaders**: Currently the primary (and essentially
only) user of `load_interal_asset` in Bevy's source code is "built-in
shaders". I chose not to do that in this PR for a few reasons:
1. We need to add the ability to pass shader defs in to shaders via meta
files. Some shaders (such as MESH_VIEW_TYPES) need to pass shader def
values in that are defined in code.
2. We need to revisit the current shader module naming system. I think
we _probably_ want to imply modules from source structure (at least by
default). Ideally in a way that can losslessly convert asset paths
to/from shader modules (to enable the asset system to resolve modules
using the asset server).
3. I want to keep this change set minimal / get this merged first.
* **Deprecate `load_internal_asset`**: we can't do that until we do (1)
and (2)
* **Relative Asset Paths**: This PR significantly increases the need for
relative asset paths (which was already pretty high). Currently when
loading dependencies, it is assumed to be an absolute path, which means
if in an `AssetLoader` you call `context.load("some/path/image.png")` it
will assume that is the "default" asset source, _even if the current
asset is in a different asset source_. This will cause breakage for
AssetLoaders that are not designed to add the current source to whatever
paths are being used. AssetLoaders should generally not need to be aware
of the name of their current asset source, or need to think about the
"current asset source" generally. We should build apis that support
relative asset paths and then encourage using relative paths as much as
possible (both via api design and docs). Relative paths are also
important because they will allow developers to move folders around
(even across providers) without reprocessing, provided there is no path
breakage.
# Objective
- When I've tested alternative async executors with bevy a common
problem is that they deadlock when we try to run nested scopes. i.e.
running a multithreaded schedule from inside another multithreaded
schedule. This adds a test to bevy_tasks for that so the issue can be
spotted earlier while developing.
## Changelog
- add a test for nested scopes.
# Objective
Fixes#9625
## Solution
Adds `async-io` as an optional dependency of `bevy_tasks`. When enabled,
this causes calls to `futures_lite::future::block_on` to be replaced
with calls to `async_io::block_on`.
---
## Changelog
- Added a new `async-io` feature to `bevy_tasks`. When enabled, this
causes `bevy_tasks` to use `async-io`'s implemention of `block_on`
instead of `futures-lite`'s implementation. You should enable this if
you use `async-io` in your application.
# Objective
`single_threaded_task_pool` emitted a warning:
```
warning: use of `default` to create a unit struct
--> crates/bevy_tasks/src/single_threaded_task_pool.rs:22:25
|
22 | Self(PhantomData::default())
| ^^^^^^^^^^^ help: remove this call to `default`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#default_constructed_unit_structs
= note: `#[warn(clippy::default_constructed_unit_structs)]` on by default
```
## Solution
fix the lint
# Objective
I found it very difficult to understand how bevy tasks work, and I
concluded that the documentation should be improved for beginners like
me.
## Solution
These changes to the documentation were written from my beginner's
perspective after
some extremely helpful explanations by nil on Discord.
I am not familiar enough with rustdoc yet; when looking at the source, I
found the documentation at the very top of `usages.rs` helpful, but I
don't know where they are rendered. They should probably be linked to
from the main `bevy_tasks` README.
---------
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
Co-authored-by: Mike <mike.hsu@gmail.com>
# Objective
- `bevy_tasks` emits warnings under certain conditions
When I run `cargo clippy -p bevy_tasks` the warning doesn't show up,
while if I run it with `cargo clippy -p bevy_asset` the warning shows
up.
## Solution
- Fix the warnings.
## Longer term solution
We should probably fix CI so that those warnings do not slip through.
But that's not the goal of this PR.
# Objective
Fixes#9113
## Solution
disable `multi-threaded` default feature
## Migration Guide
The `multi-threaded` feature in `bevy_ecs` and `bevy_tasks` is no longer
enabled by default. However, this remains a default feature for the
umbrella `bevy` crate. If you depend on `bevy_ecs` or `bevy_tasks`
directly, you should consider enabling this to allow systems to run in
parallel.
CI-capable version of #9086
---------
Co-authored-by: Bevy Auto Releaser <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: François <mockersf@gmail.com>
I created this manually as Github didn't want to run CI for the
workflow-generated PR. I'm guessing we didn't hit this in previous
releases because we used bors.
Co-authored-by: Bevy Auto Releaser <41898282+github-actions[bot]@users.noreply.github.com>
# Objective
Fixes#6689.
## Solution
Add `single-threaded` as an optional non-default feature to `bevy_ecs`
and `bevy_tasks` that:
- disable the `ParallelExecutor` as a default runner
- disables the multi-threaded `TaskPool`
- internally replace `QueryParIter::for_each` calls with
`Query::for_each`.
Removed the `Mutex` and `Arc` usage in the single-threaded task pool.
## Future Work/TODO
Create type aliases for `Mutex`, `Arc` that change to single-threaaded
equivalents where possible.
---
## Changelog
Added: Optional default feature `multi-theaded` to that enables
multithreaded parallelism in the engine. Disabling it disables all
multithreading in exchange for higher single threaded performance. Does
nothing on WASM targets.
---------
Co-authored-by: Carter Anderson <mcanders1@gmail.com>
Links in the api docs are nice. I noticed that there were several places
where structs / functions and other things were referenced in the docs,
but weren't linked. I added the links where possible / logical.
---------
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
Co-authored-by: François <mockersf@gmail.com>
# Objective
Fixes#8215 and #8152. When systems panic, it causes the main thread to
panic as well, which clutters the output.
## Solution
Resolves the panic in the multi-threaded scheduler. Also adds an extra
message that tells the user the system that panicked.
Using the example from the issue, here is what the messages now look
like:
```rust
use bevy::prelude::*;
fn main() {
App::new()
.add_plugins(DefaultPlugins)
.add_systems(Update, panicking_system)
.run();
}
fn panicking_system() {
panic!("oooh scary");
}
```
### Before
```
Compiling bevy_test v0.1.0 (E:\Projects\Rust\bevy_test)
Finished dev [unoptimized + debuginfo] target(s) in 2m 58s
Running `target\debug\bevy_test.exe`
2023-03-30T22:19:09.234932Z INFO bevy_diagnostic::system_information_diagnostics_plugin::internal: SystemInfo { os: "Windows 10 Pro", kernel: "19044", cpu: "AMD Ryzen 5 2600 Six-Core Processor", core_count: "6", memory: "15.9 GiB" }
thread 'Compute Task Pool (5)' panicked at 'oooh scary', src\main.rs:11:5
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
thread 'Compute Task Pool (5)' panicked at 'A system has panicked so the executor cannot continue.: RecvError', E:\Projects\Rust\bevy\crates\bevy_ecs\src\schedule\executor\multi_threaded.rs:194:60
thread 'main' panicked at 'called `Option::unwrap()` on a `None` value', E:\Projects\Rust\bevy\crates\bevy_tasks\src\task_pool.rs:376:49
error: process didn't exit successfully: `target\debug\bevy_test.exe` (exit code: 101)
```
### After
```
Compiling bevy_test v0.1.0 (E:\Projects\Rust\bevy_test)
Finished dev [unoptimized + debuginfo] target(s) in 2.39s
Running `target\debug\bevy_test.exe`
2023-03-30T22:11:24.748513Z INFO bevy_diagnostic::system_information_diagnostics_plugin::internal: SystemInfo { os: "Windows 10 Pro", kernel: "19044", cpu: "AMD Ryzen 5 2600 Six-Core Processor", core_count: "6", memory: "15.9 GiB" }
thread 'Compute Task Pool (5)' panicked at 'oooh scary', src\main.rs:11:5
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
Encountered a panic in system `bevy_test::panicking_system`!
Encountered a panic in system `bevy_app::main_schedule::Main::run_main`!
error: process didn't exit successfully: `target\debug\bevy_test.exe` (exit code: 101)
```
---------
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
Co-authored-by: François <mockersf@gmail.com>
Fixes issue mentioned in PR #8285.
_Note: By mistake, this is currently dependent on #8285_
# Objective
Ensure consistency in the spelling of the documentation.
Exceptions:
`crates/bevy_mikktspace/src/generated.rs` - Has not been changed from
licence to license as it is part of a licensing agreement.
Maybe for further consistency,
https://github.com/bevyengine/bevy-website should also be given a look.
## Solution
### Changed the spelling of the current words (UK/CN/AU -> US) :
cancelled -> canceled (Breaking API changes in #8285)
behaviour -> behavior (Breaking API changes in #8285)
neighbour -> neighbor
grey -> gray
recognise -> recognize
centre -> center
metres -> meters
colour -> color
### ~~Update [`engine_style_guide.md`]~~ Moved to #8324
---
## Changelog
Changed UK spellings in documentation to US
## Migration Guide
Non-breaking changes*
\* If merged after #8285
# Objective
The clippy lint `type_complexity` is known not to play well with bevy.
It frequently triggers when writing complex queries, and taking the
lint's advice of using a type alias almost always just obfuscates the
code with no benefit. Because of this, this lint is currently ignored in
CI, but unfortunately it still shows up when viewing bevy code in an
IDE.
As someone who's made a fair amount of pull requests to this repo, I
will say that this issue has been a consistent thorn in my side. Since
bevy code is filled with spurious, ignorable warnings, it can be very
difficult to spot the *real* warnings that must be fixed -- most of the
time I just ignore all warnings, only to later find out that one of them
was real after I'm done when CI runs.
## Solution
Suppress this lint in all bevy crates. This was previously attempted in
#7050, but the review process ended up making it more complicated than
it needs to be and landed on a subpar solution.
The discussion in https://github.com/rust-lang/rust-clippy/pull/10571
explores some better long-term solutions to this problem. Since there is
no timeline on when these solutions may land, we should resolve this
issue in the meantime by locally suppressing these lints.
### Unresolved issues
Currently, these lints are not suppressed in our examples, since that
would require suppressing the lint in every single source file. They are
still ignored in CI.
…or's ticker for one thread.
# Objective
- Fix debug_asset_server hang.
## Solution
- Reuse the thread_local executor for MainThreadExecutor resource, so there will be only one ThreadExecutor for main thread.
- If ThreadTickers from same executor, they are conflict with each other. Then only tick one.
# Objective
- While working on scope recently, I ran into a missing invariant for the transmutes in scope. The references passed into Scope are active for the rest of the scope function, but rust doesn't know this so it allows using the owned `spawned` and `scope` after `f` returns.
## Solution
- Update the safety comment
- Shadow the owned values so they can't be used.
