Use no_main to allow xtasks to compile on wasm

Author: cwfitzgerald

naga/xtask/Cargo.toml

@@ -5,7 +5,7 @@ edition = "2021"
 publish = false
 rust-version = "1.84"
 
-[dependencies]
+[target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 anyhow = "1"
 env_logger = { version = "0.11.0", default-features = false }
 glob = "0.3.1"

naga/xtask/src/main.rs

@@ -1,3 +1,6 @@
+#![cfg_attr(target_arch = "wasm32", no_main)]
+#![cfg(not(target_arch = "wasm32"))]
+
 use std::process::ExitCode;
 
 use anyhow::Context;

xtask/Cargo.toml

@@ -11,7 +11,7 @@ unexpected_cfgs = { level = "warn", check-cfg = [
     'cfg(trick_rust_analyzer_into_highlighting_interpolated_bits)',
 ] }
 
-[dependencies]
+[target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 # The dependencies in this config have no transitive dependencies.
 anyhow = "1.0.71"
 env_logger = { version = "0.11.0", default-features = false }

xtask/src/main.rs

@@ -1,3 +1,6 @@
+#![cfg_attr(target_arch = "wasm32", no_main)]
+#![cfg(not(target_arch = "wasm32"))]
+
 use std::process::ExitCode;
 
 use anyhow::Context;