Initial shader compilation

blog/2025-03-30-draw-compute-shader/draw-compute/build.rs

@@ -0,0 +1,26 @@
+use std::error::Error;
+use std::path::PathBuf;
+use std::{env, process};
+
+pub fn main() -> Result<(), Box<dyn Error>> {
+    let out_path = PathBuf::from(env::var("OUT_DIR").unwrap()).join("shader.spv");
+    let mut cargo = process::Command::new("cargo");
+
+    let mut shader_cli = cargo
+        .current_dir("./shader-cli")
+        .arg("run")
+        .arg("--")
+        .arg("../shader")
+        .arg(out_path);
+
+    // Clean all `RUST*`/`CARGO*` environment variables so `rust-toolchain.toml` takes over
+    for env_var in env::vars() {
+        if env_var.0.starts_with("RUST") || env_var.0.starts_with("CARGO") {
+            shader_cli = shader_cli.env_remove(env_var.0);
+        }
+    }
+
+    shader_cli.status()?;
+
+    Ok(())
+}