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gpui: make build dependencies mac only

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This removes bindgen and cbindgen from the dependency graph on non-macos
systems, improving compile times on those systems.

Signed-off-by: Niklas Wimmer <mail@nwimmer.me>
This commit is contained in:
Niklas Wimmer 2024-03-13 14:34:47 +01:00 • committed by Piotr Osiewicz
parent 50ab60b9f0
commit 97f1d61a4a
2 changed files with 183 additions and 172 deletions
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2
crates/gpui/Cargo.toml
View file

@ -78,7 +78,7 @@ backtrace = "0.3"
collections = { workspace = true, features = ["test-support"] }
util = { workspace = true, features = ["test-support"] }
[build-dependencies]
[target.'cfg(target_os = "macos")'.build-dependencies]
bindgen = "0.65.1"
cbindgen = "0.26.0"

31
crates/gpui/build.rs
View file

@ -1,5 +1,15 @@
#![cfg_attr(any(not(target_os = "macos"), feature = "macos-blade"), allow(unused))]
//TODO: consider generating shader code for WGSL
//TODO: deprecate "runtime-shaders" and "macos-blade"
fn main() {
#[cfg(target_os = "macos")]
macos::build();
}
#[cfg(target_os = "macos")]
mod macos {
use std::{
env,
path::{Path, PathBuf},
@ -7,21 +17,18 @@ use std::{
use cbindgen::Config;
//TODO: consider generating shader code for WGSL
//TODO: deprecate "runtime-shaders" and "macos-blade"
fn main() {
#[cfg(target_os = "macos")]
pub(super) fn build() {
generate_dispatch_bindings();
#[cfg(all(target_os = "macos", not(feature = "macos-blade")))]
#[cfg(not(feature = "macos-blade"))]
{
let header_path = generate_shader_bindings();
#[cfg(all(target_os = "macos", not(feature = "macos-blade")))]
#[cfg(feature = "runtime_shaders")]
emit_stitched_shaders(&header_path);
#[cfg(all(target_os = "macos", not(feature = "macos-blade")))]
#[cfg(not(feature = "runtime_shaders"))]
compile_metal_shaders(&header_path);
}
}
fn generate_dispatch_bindings() {
println!("cargo:rustc-link-lib=framework=System");
@ -125,7 +132,8 @@ fn emit_stitched_shaders(header_path: &Path) {
let header_contents = std::fs::read_to_string(header)?;
let shader_contents = std::fs::read_to_string(shader_path)?;
let stitched_contents = format!("{header_contents}\n{shader_contents}");
let out_path = PathBuf::from(env::var("OUT_DIR").unwrap()).join("stitched_shaders.metal");
let out_path =
PathBuf::from(env::var("OUT_DIR").unwrap()).join("stitched_shaders.metal");
std::fs::write(&out_path, stitched_contents)?;
Ok(out_path)
}
@ -134,12 +142,14 @@ fn emit_stitched_shaders(header_path: &Path) {
stitch_header(header_path, &shader_path).unwrap();
println!("cargo:rerun-if-changed={}", &shader_source_path);
}
#[cfg(not(feature = "runtime_shaders"))]
fn compile_metal_shaders(header_path: &Path) {
use std::process::{self, Command};
let shader_path = "./src/platform/mac/shaders.metal";
let air_output_path = PathBuf::from(env::var("OUT_DIR").unwrap()).join("shaders.air");
let metallib_output_path = PathBuf::from(env::var("OUT_DIR").unwrap()).join("shaders.metallib");
let metallib_output_path =
PathBuf::from(env::var("OUT_DIR").unwrap()).join("shaders.metallib");
println!("cargo:rerun-if-changed={}", shader_path);
let output = Command::new("xcrun")
@ -184,3 +194,4 @@ fn compile_metal_shaders(header_path: &Path) {
process::exit(1);
}
}
}