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vello_shaders causes recompilation #569

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waywardmonkeys opened this issue May 6, 2024 · 1 comment · Fixed by #570
Closed

vello_shaders causes recompilation #569

waywardmonkeys opened this issue May 6, 2024 · 1 comment · Fixed by #570
Milestone
Vello 0.2 release

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@waywardmonkeys
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Now that we use vello_shaders, it causes rebuilds on every run of cargo build / cargo run / etc.

This is due to crates/shaders/build.rs unconditionally writing out the new shader file:

std::fs::write(dest_path, &buf).unwrap();

This needs to only write it if it has changed.

cc: @armansito
@waywardmonkeys waywardmonkeys added this to the Vello 0.2 release milestone May 7, 2024
@waywardmonkeys
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The issue is much easier than that. PR coming momentarily.

waywardmonkeys added a commit to waywardmonkeys/vello that referenced this issue May 7, 2024
@waywardmonkeys
shaders: Fix dependency on shader directory.
e4912ca 
The dependency on the `shader` directory was incorrect (wrong
path), so cargo was rebuilding this library on every invocation
of `cargo build`.

Also moved it earlier just to separate it out from the code that
did the build and writing of the generated `shaders.rs` file.

Fixes linebender#569.
@waywardmonkeys waywardmonkeys mentioned this issue May 7, 2024
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github-merge-queue bot pushed a commit that referenced this issue May 7, 2024
@waywardmonkeys
shaders: Fix dependency on shader directory. (#570)
9aee6c8 
The dependency on the `shader` directory was incorrect (wrong path), so
cargo was rebuilding this library on every invocation of `cargo build`.

Also moved it earlier just to separate it out from the code that did the
build and writing of the generated `shaders.rs` file.

Fixes #569.
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shaders: Fix dependency on shader directory. waywardmonkeys/vello
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