This reverts commit ac52cca033.
Fixes#18815
the interest of providing no_std support, specifically no_atomic
support). That tradeoff isn't worth it, especially given that tracing is
likely to get no_atomic support.
Revert #18782
- Fixes#18781
- Moved `LogPlugin` into its own file gated behind a new `tracing`
feature.
- Used `log` instead of `tracing` where possible.
- Exposed a new `tracing` feature in `bevy` which enables
`bevy_log/tracing`.
- Gated `LogPlugin` from `DefaultPlugins` on `tracing` feature.
- CI
---
- If you were previously using `bevy_log` with default features
disabled, enable the new `std` and `tracing` features.
- If you were using `bevy` with the default features disabled, enable
the new `tracing` feature.
Almost all of the diffs in this PR come from moving `LogPlugin` into its
own file. This just makes the PR less noisy, since the alternative is
excessive `#[cfg(feature = "tracing")]` directives all over the plugin.
---------
Co-authored-by: François Mockers <francois.mockers@vleue.com>
# Objective
- Contributes to #15460
- Supersedes #8520
- Fixes#4906
## Solution
- Added a new `web` feature to `bevy`, and several of its crates.
- Enabled new `web` feature automatically within crates without `no_std`
support.
## Testing
- `cargo build --no-default-features --target wasm32v1-none`
---
## Migration Guide
When using Bevy crates which _don't_ automatically enable the `web`
feature, please enable it when building for the browser.
## Notes
- I added [`cfg_if`](https://crates.io/crates/cfg-if) to help manage
some of the feature gate gore that this extra feature introduces. It's
still pretty ugly, but I think much easier to read.
- Certain `wasm` targets (e.g.,
[wasm32-wasip1](https://doc.rust-lang.org/nightly/rustc/platform-support/wasm32-wasip1.html#wasm32-wasip1))
provide an incomplete implementation for `std`. I have not tested these
platforms, but I suspect Bevy's liberal use of usually unsupported
features (e.g., threading) will cause these targets to fail. As such,
consider `wasm32-unknown-unknown` as the only `wasm` platform with
support from Bevy for `std`. All others likely will need to be treated
as `no_std` platforms.
# Objective
- Fixes#17960
## Solution
- Followed the [edition upgrade
guide](https://doc.rust-lang.org/edition-guide/editions/transitioning-an-existing-project-to-a-new-edition.html)
## Testing
- CI
---
## Summary of Changes
### Documentation Indentation
When using lists in documentation, proper indentation is now linted for.
This means subsequent lines within the same list item must start at the
same indentation level as the item.
```rust
/* Valid */
/// - Item 1
/// Run-on sentence.
/// - Item 2
struct Foo;
/* Invalid */
/// - Item 1
/// Run-on sentence.
/// - Item 2
struct Foo;
```
### Implicit `!` to `()` Conversion
`!` (the never return type, returned by `panic!`, etc.) no longer
implicitly converts to `()`. This is particularly painful for systems
with `todo!` or `panic!` statements, as they will no longer be functions
returning `()` (or `Result<()>`), making them invalid systems for
functions like `add_systems`. The ideal fix would be to accept functions
returning `!` (or rather, _not_ returning), but this is blocked on the
[stabilisation of the `!` type
itself](https://doc.rust-lang.org/std/primitive.never.html), which is
not done.
The "simple" fix would be to add an explicit `-> ()` to system
signatures (e.g., `|| { todo!() }` becomes `|| -> () { todo!() }`).
However, this is _also_ banned, as there is an existing lint which (IMO,
incorrectly) marks this as an unnecessary annotation.
So, the "fix" (read: workaround) is to put these kinds of `|| -> ! { ...
}` closuers into variables and give the variable an explicit type (e.g.,
`fn()`).
```rust
// Valid
let system: fn() = || todo!("Not implemented yet!");
app.add_systems(..., system);
// Invalid
app.add_systems(..., || todo!("Not implemented yet!"));
```
### Temporary Variable Lifetimes
The order in which temporary variables are dropped has changed. The
simple fix here is _usually_ to just assign temporaries to a named
variable before use.
### `gen` is a keyword
We can no longer use the name `gen` as it is reserved for a future
generator syntax. This involved replacing uses of the name `gen` with
`r#gen` (the raw-identifier syntax).
### Formatting has changed
Use statements have had the order of imports changed, causing a
substantial +/-3,000 diff when applied. For now, I have opted-out of
this change by amending `rustfmt.toml`
```toml
style_edition = "2021"
```
This preserves the original formatting for now, reducing the size of
this PR. It would be a simple followup to update this to 2024 and run
`cargo fmt`.
### New `use<>` Opt-Out Syntax
Lifetimes are now implicitly included in RPIT types. There was a handful
of instances where it needed to be added to satisfy the borrow checker,
but there may be more cases where it _should_ be added to avoid
breakages in user code.
### `MyUnitStruct { .. }` is an invalid pattern
Previously, you could match against unit structs (and unit enum
variants) with a `{ .. }` destructuring. This is no longer valid.
### Pretty much every use of `ref` and `mut` are gone
Pattern binding has changed to the point where these terms are largely
unused now. They still serve a purpose, but it is far more niche now.
### `iter::repeat(...).take(...)` is bad
New lint recommends using the more explicit `iter::repeat_n(..., ...)`
instead.
## Migration Guide
The lifetimes of functions using return-position impl-trait (RPIT) are
likely _more_ conservative than they had been previously. If you
encounter lifetime issues with such a function, please create an issue
to investigate the addition of `+ use<...>`.
## Notes
- Check the individual commits for a clearer breakdown for what
_actually_ changed.
---------
Co-authored-by: François Mockers <francois.mockers@vleue.com>
Bump version after release
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# Objective
- Contributes to #11478
## Solution
- Made `bevy_utils::tracing` `doc(hidden)`
- Re-exported `tracing` from `bevy_log` for end-users
- Added `tracing` directly to crates that need it.
## Testing
- CI
---
## Migration Guide
If you were importing `tracing` via `bevy::utils::tracing`, instead use
`bevy::log::tracing`. Note that many items within `tracing` are also
directly re-exported from `bevy::log` as well, so you may only need
`bevy::log` for the most common items (e.g., `warn!`, `trace!`, etc.).
This also applies to the `log_once!` family of macros.
## Notes
- While this doesn't reduce the line-count in `bevy_utils`, it further
decouples the internal crates from `bevy_utils`, making its eventual
removal more feasible in the future.
- I have just imported `tracing` as we do for all dependencies. However,
a workspace dependency may be more appropriate for version management.
# Objective
On mobile devices, it's best to use the OS's native logging due to the
difficulty of accessing the console. This is already done for Android.
This is an updated version of
https://github.com/bevyengine/bevy/pull/4462.
## Solution
This PR uses Absolucy's
[tracing-oslog](https://github.com/Absolucy/tracing-oslog) ([ZLib
license](https://github.com/Absolucy/tracing-oslog/blob/main/LICENSE.md))
for iOS in order to use Apple's `os_log`.
## Testing
I ran `examples/mobile` with the logging from `examples/app/logs.rs` on
an iOS device, I then checked the logs could be filtered in the MacOS
Console.app.
## Changelog
- Change bevy_log to use Apple's os_log on iOS.
## Questions for Reviewers
It's worth noting that the dependency this adds hasn't had bug fixes
released in a few years, so we may want to consider one or more of:
1. a feature flag to opt-in, and it would also allow `os_log` on MacOS
2. merge as-is and have some (minor?) upstream bugs
3. hold off on this PR until a suitable alternative dependency arises
4. maintain our own implementation
## Future work
In a follow-up PR it might be good to make the `subsystem` field have a
better default value, like [this
one](https://github.com/bevyengine/bevy/blob/main/examples/mobile/bevy_mobile_example.xcodeproj/project.pbxproj#L363).
That value can be retrieved programmatically if we bind another system
API (For posterity in Swift this is `Bundle.main.bundleIdentifier`, but
the C/ObjC equivalent is likely easier to bind). This would almost
always be the correct value, while the current default is unlikely to
ever be correct.
---------
Co-authored-by: Dusty DeWeese <dustin.deweese@gmail.com>
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
Co-authored-by: Carter Anderson <mcanders1@gmail.com>
Co-authored-by: François Mockers <francois.mockers@vleue.com>
# Objective
- Fix issue #2611
## Solution
- Add `--generate-link-to-definition` to all the `rustdoc-args` arrays
in the `Cargo.toml`s (for docs.rs)
- Add `--generate-link-to-definition` to the `RUSTDOCFLAGS` environment
variable in the docs workflow (for dev-docs.bevyengine.org)
- Document all the workspace crates in the docs workflow (needed because
otherwise only the source code of the `bevy` package will be included,
making the argument useless)
- I think this also fixes#3662, since it fixes the bug on
dev-docs.bevyengine.org, while on docs.rs it has been fixed for a while
on their side.
---
## Changelog
- The source code viewer on docs.rs now includes links to the
definitions.
Bump version after release
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# Objective
- Allow configuring of platform-specific panic handlers.
- Remove the silent overwrite of the WASM panic handler
- Closes#12546
## Solution
- Separates the panic handler to a new plugin, `PanicHandlerPlugin`.
- `PanicHandlerPlugin` was added to `DefaultPlugins`.
- Can be disabled on `DefaultPlugins`, in the case someone needs to
configure custom panic handlers.
---
## Changelog
### Added
- A `PanicHandlerPlugin` was added to the `DefaultPlugins`, which now
sets sensible target-specific panic handlers.
### Changed
- On WASM, the panic stack trace was output to the console through the
`BevyLogPlugin`. Since this was separated out into `PanicHandlerPlugin`,
you may need to add the new `PanicHandlerPlugin` (included in
`DefaultPlugins`).
## Migration Guide
- If you used `MinimalPlugins` with `LogPlugin` for a WASM-target build,
you will need to add the new `PanicHandlerPlugin` to set the panic
behavior to output to the console. Otherwise, you will see the default
panic handler (opaque, `unreachable` errors in the console).
# 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
Fixes#12016.
Bump version after release
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# Objective
- Update `tracing-tracy`.
- Closes#11598.
## Solution
- Bump `tracing-tracy` to 0.11.0 and `tracy-client` alongside it to
0.17.0 to avoid duplicating that dependency in the deps tree.
- `TracyLayer` is now configurable on creation, so use the default
config.
---------
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# Objective
The table [here](https://github.com/nagisa/rust_tracy_client) shows
which versions of [Tracy](https://github.com/wolfpld/tracy) should be
used combined with which Rust deps.
Reading `bevy_log`'s `Cargo.toml` can be slightly confusing since the
exact versions are not picked from the same row.
Reading the produced `Cargo.lock` when building a Bevy example shows
that it's the most recent row that is resolved, but this should be more
clearly understood without needing to check the lock file.
## Solution
- Specify versions from the compatibility table including patch version
Signed-off-by: Torstein Grindvik <torstein.grindvik@muybridge.com>
Co-authored-by: Torstein Grindvik <torstein.grindvik@muybridge.com>
# Objective
- Standardize fmt for toml files
## Solution
- Add [taplo](https://taplo.tamasfe.dev/) to CI (check for fmt and diff
for toml files), for context taplo is used by the most popular extension
in VScode [Even Better
TOML](https://marketplace.visualstudio.com/items?itemName=tamasfe.even-better-toml
- Add contribution section to explain toml fmt with taplo.
Now to pass CI you need to run `taplo fmt --option indent_string=" "` or
if you use vscode have the `Even Better TOML` extension with 4 spaces
for indent
---------
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
# 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
```
---------
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Updates the requirements on
[tracy-client](https://github.com/nagisa/rust_tracy_client) to permit
the latest version.
<details>
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<ul>
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Benches fell out of sync</li>
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*This PR description is an edited copy of #5007, written by @alice-i-cecile.*
# Objective
Follow-up to https://github.com/bevyengine/bevy/pull/2254. The `Resource` trait currently has a blanket implementation for all types that meet its bounds.
While ergonomic, this results in several drawbacks:
* it is possible to make confusing, silent mistakes such as inserting a function pointer (Foo) rather than a value (Foo::Bar) as a resource
* it is challenging to discover if a type is intended to be used as a resource
* we cannot later add customization options (see the [RFC](https://github.com/bevyengine/rfcs/blob/main/rfcs/27-derive-component.md) for the equivalent choice for Component).
* dependencies can use the same Rust type as a resource in invisibly conflicting ways
* raw Rust types used as resources cannot preserve privacy appropriately, as anyone able to access that type can read and write to internal values
* we cannot capture a definitive list of possible resources to display to users in an editor
## Notes to reviewers
* Review this commit-by-commit; there's effectively no back-tracking and there's a lot of churn in some of these commits.
*ira: My commits are not as well organized :')*
* I've relaxed the bound on Local to Send + Sync + 'static: I don't think these concerns apply there, so this can keep things simple. Storing e.g. a u32 in a Local is fine, because there's a variable name attached explaining what it does.
* I think this is a bad place for the Resource trait to live, but I've left it in place to make reviewing easier. IMO that's best tackled with https://github.com/bevyengine/bevy/issues/4981.
## Changelog
`Resource` is no longer automatically implemented for all matching types. Instead, use the new `#[derive(Resource)]` macro.
## Migration Guide
Add `#[derive(Resource)]` to all types you are using as a resource.
If you are using a third party type as a resource, wrap it in a tuple struct to bypass orphan rules. Consider deriving `Deref` and `DerefMut` to improve ergonomics.
`ClearColor` no longer implements `Component`. Using `ClearColor` as a component in 0.8 did nothing.
Use the `ClearColorConfig` in the `Camera3d` and `Camera2d` components instead.
Co-authored-by: Alice <alice.i.cecile@gmail.com>
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
Co-authored-by: devil-ira <justthecooldude@gmail.com>
Co-authored-by: Carter Anderson <mcanders1@gmail.com>
# Objective
- I think our codebase is hit badly by rust-lang/rust-analyzer#11410
- None of our uses of cyclic dependencies are remotely necessary
- Note that these are false positives in rust-analyzer, however it's probably easier for us to work around this
- Note also that I haven't confirmed that this is causing rust-analyzer to not work very well, but it's not a bad guess.
## Solution
- Remove our cyclic dependencies
- Import the trick from #2851 for no-op plugin groups.
This upgrade should bring some significant performance improvements to
instrumentation. These are mostly achieved by disabling features (by
default) that are likely not widely used by default – collection of
callstacks and support for fibers that wasn't used for anything in
particular yet. For callstack collection it might be worthwhile to
provide a mechanism to enable this at runtime by calling
`TracyLayer::with_stackdepth`.
These should bring the cost of a single span down from 30+µs per span to
a more reasonable 1.5µs or so and down to the ns scale for events (on my
1st gen Ryzen machine, anyway.) There is still a fair amount of overhead
over plain tracy_client instrumentation in formatting and such, but
dealing with it requires significant effort and this is a
straightforward improvement to have for the time being.
Co-authored-by: Simonas Kazlauskas <git@kazlauskas.me>
Updates the requirements on [tracing-tracy](https://github.com/nagisa/rust_tracy_client) to permit the latest version.
<details>
<summary>Commits</summary>
<ul>
<li><a href="13b335a710"><code>13b335a</code></a> Remove ability to disable the client at runtime</li>
<li><a href="69e44977ee"><code>69e4497</code></a> The upgrades to 0.8.1</li>
<li><a href="c204b60c7a"><code>c204b60</code></a> Cancel the old test runs</li>
<li><a href="939bd04c1c"><code>939bd04</code></a> Remove the thread initialization calls</li>
<li><a href="7024e776bb"><code>7024e77</code></a> Update Tracy client bindings to v0.8.1</li>
<li><a href="5c54baa244"><code>5c54baa</code></a> tracy-client 0.12.7</li>
<li><a href="f183050b20"><code>f183050</code></a> Non-allocating <code>span!</code> macro</li>
<li><a href="15936ea751"><code>15936ea</code></a> tracy-client 0.12.6</li>
<li><a href="26d0c50542"><code>26d0c50</code></a> Relax literal the requirement of the create_plot macro so that it can be used...</li>
<li>See full diff in <a href="https://github.com/nagisa/rust_tracy_client/compare/tracing-tracy-v0.8.0...tracing-tracy-v0.9.0">compare view</a></li>
</ul>
</details>
<br />
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</details>
# Objective
- Help debug panics
## Solution
- Insert a custom panic hook when trace is enabled that will log spans
example when running a command on a despawned entity
before:
```
thread 'main' panicked at 'Could not add a component (of type `panic::Marker`) to entity 1v0 because it doesn't exist in this World.
If this command was added to a newly spawned entity, ensure that you have not despawned that entity within the same stage.
This may have occurred due to system order ambiguity, or if the spawning system has multiple command buffers', /bevy/crates/bevy_ecs/src/system/commands/mod.rs:664:13
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
```
after:
```
0: bevy_ecs::schedule::stage::system_commands
with name="panic::my_bad_system"
at crates/bevy_ecs/src/schedule/stage.rs:871
1: bevy_ecs::schedule::stage
with name=Update
at crates/bevy_ecs/src/schedule/mod.rs:340
2: bevy_app::app::frame
at crates/bevy_app/src/app.rs:111
3: bevy_app::app::bevy_app
at crates/bevy_app/src/app.rs:126
thread 'main' panicked at 'Could not add a component (of type `panic::Marker`) to entity 1v0 because it doesn't exist in this World.
If this command was added to a newly spawned entity, ensure that you have not despawned that entity within the same stage.
This may have occurred due to system order ambiguity, or if the spawning system has multiple command buffers', /bevy/crates/bevy_ecs/src/system/commands/mod.rs:664:13
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
```