napi-rs/crates/build/src/windows.rs
forehalo 2467b7139b
Introduce #[napi] procedural macro to automation development boilerplate (#696)
* napi procedural macro for basic rust/JavaScript types
* introduce the `compat-mode` for `napi` and `napi-derive` crates for backward compatible
* remove #[inline] and let compiler to decide the inline behavior
* cli now can produce the `.d.ts` file for native binding
* many tests and example for the new procedural macro

Co-authored-by: LongYinan <lynweklm@gmail.com>
2021-09-23 01:29:09 +08:00

68 lines
2.5 KiB
Rust

#![allow(clippy::expect_fun_call)]
use std::env;
use std::fs::{metadata, write};
use std::path::PathBuf;
fn copy_node_lib(arch: &str) -> Vec<u8> {
match arch {
"x64" => include_bytes!("libs/node-x64.lib").to_vec(),
"x86" => include_bytes!("libs/node-x86.lib").to_vec(),
"arm64" => include_bytes!("libs/node-arm64.lib").to_vec(),
_ => unreachable!(),
}
}
pub fn setup() {
let out_dir = env::var("OUT_DIR").expect("OUT_DIR is not set");
// NPM also gives us an arch var, but let's trust cargo more.
// We translate from cargo's arch env format into npm/gyps's.
// See https://doc.rust-lang.org/reference/conditional-compilation.html#target_arch for rust env values.
// Nodejs appears to follow `process.arch`.
// See https://nodejs.org/docs/latest/api/process.html#process_process_arch for npm env values.
// For windows, we only support `['ia32', 'x64', 'arm64']`
// https://github.com/nodejs/node-gyp/blob/master/lib/install.js#L301
let arch = env::var("CARGO_CFG_TARGET_ARCH")
.map(|arch| match arch.as_str() {
"x86" => "x86",
"x86_64" => "x64",
// https://github.com/nodejs/node/issues/25998
// actually not supported for now
// but we can get it from https://unofficial-builds.nodejs.org/download/release
// just set the `NPM_CONFIG_DISTURL` to `https://unofficial-builds.nodejs.org/download/release`
"aarch64" => "arm64",
arch => panic!("Unsupported CPU Architecture: {}", arch),
})
.expect("Failed to determine target arch");
let mut node_lib_file_path = PathBuf::from(out_dir);
let link_search_dir = node_lib_file_path.clone();
// Encode arch to detect and require node.lib.
let node_lib_file_name = format!("node-{arch}.lib", arch = arch,);
node_lib_file_path.push(&node_lib_file_name);
// If file does not exist, download it.
if metadata(&node_lib_file_path).is_err() {
let node_lib = copy_node_lib(arch);
write(&node_lib_file_path, &node_lib).expect(&format!(
"Could not save file to {}",
node_lib_file_path.to_str().unwrap()
));
}
println!(
"cargo:rustc-link-lib={}",
node_lib_file_path.file_stem().unwrap().to_str().unwrap()
);
println!(
"cargo:rustc-link-search=native={}",
link_search_dir.display()
);
// Link `win_delay_load_hook.obj`
// Needed for electron, but okay for other environments
// https://github.com/neon-bindings/neon/pull/627
println!("cargo:rustc-cdylib-link-arg=delayimp.lib");
println!("cargo:rustc-cdylib-link-arg=/DELAYLOAD:node.exe");
}