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build.rs
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build.rs
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use chrono::Datelike;
use flate2::read::GzDecoder;
use reqwest;
use tar::Archive;
use std::{
env,
fs::{self, File},
io::{self, copy},
path::{Path, PathBuf},
process::Command,
};
const NODE_VERSION: &str = "20.10.0";
const COREPACK_NODE: &str = "../../../../../bin/node";
fn extract_tar_gz(tar: &PathBuf, download_dir: &PathBuf) -> io::Result<()> {
let file = File::open(tar)?;
let decoder = GzDecoder::new(file);
let mut archive = Archive::new(decoder);
archive.unpack(download_dir)?;
Ok(fs::remove_file(tar)?)
}
fn download_file(url: String, destination: &PathBuf, download_dir: &PathBuf) {
if !download_dir.exists() {
fs::create_dir_all(download_dir).unwrap();
}
let mut response = reqwest::blocking::get(url).expect("Failed to send request");
let mut file = File::create(destination).expect("Failed to create file");
copy(&mut response, &mut file).expect("Failed to copy content");
}
fn download_node() -> PathBuf {
#[cfg(target_os = "linux")]
let target_os = "linux";
#[cfg(all(target_os = "macos"))]
let target_os = "darwin";
#[cfg(all(target_arch = "arm"))]
let target_arch = "armv7l";
#[cfg(all(target_arch = "x86_64"))]
let target_arch = "x64";
#[cfg(all(target_arch = "aarch64"))]
let target_arch = "arm64";
let download_url = format!("https://nodejs.org/dist/v{NODE_VERSION}/node-v{NODE_VERSION}-{target_os}-{target_arch}.tar.gz");
/* paths */
let download_dir = Path::new("target").join("downloads");
let node_extract_dir = download_dir.join(format!("node-v{NODE_VERSION}-{target_os}-{target_arch}"));
if node_extract_dir.is_dir() {
return node_extract_dir;
}
/* download node */
let node_archive = download_dir.join(format!("node-v{}-{}.tar.gz", NODE_VERSION, target_os));
download_file(download_url, &node_archive, &download_dir);
/* extract node */
if let Err(err) = extract_tar_gz(&node_archive, &download_dir) {
panic!("Failed to extract Node.js: {:?}", err)
}
/* set env */
println!(
"cargo:rerun-if-env-changed=NODE_HOME\n\
cargo:rerun-if-env-changed=PATH\n\
cargo:rerun-if-env-changed=PNPM_HOME"
);
let path = match env::var("PATH") {
Ok(path) => path,
Err(err) => panic!("{err}"),
};
println!("cargo:rustc-env=NODE_HOME={}", node_extract_dir.to_str().unwrap());
println!("cargo:rustc-env=PATH={}/bin:{path}", node_extract_dir.to_str().unwrap());
return node_extract_dir;
}
fn download_then_build(node_extract_dir: PathBuf) {
let corepack = &node_extract_dir.join("lib").join("node_modules").join("corepack").join("dist").join("lib");
/* install deps */
Command::new(COREPACK_NODE)
.args(["corepack.cjs", "pnpm", "install"])
.current_dir(corepack)
.status()
.expect("Failed to install dependencies");
/* build frontend */
Command::new(COREPACK_NODE)
.args(["corepack.cjs", "npx", "astro", "build"])
.current_dir(corepack)
.status()
.expect("Failed to build frontend");
}
fn main() {
#[cfg(target_os = "windows")]
compile_error!("This project is not supported on Windows.");
#[cfg(target_arch = "x86")]
compile_error!("This project is not supported on 32 bit.");
/* version attributes */
let date = chrono::Utc::now();
let profile = env::var("PROFILE").unwrap();
let output = Command::new("git").args(&["rev-parse", "--short=10", "HEAD"]).output().unwrap();
let output_full = Command::new("git").args(&["rev-parse", "HEAD"]).output().unwrap();
println!("cargo:rustc-env=TARGET={}", env::var("TARGET").unwrap());
println!("cargo:rustc-env=GIT_HASH={}", String::from_utf8(output.stdout).unwrap());
println!("cargo:rustc-env=GIT_HASH_FULL={}", String::from_utf8(output_full.stdout).unwrap());
println!("cargo:rustc-env=BUILD_DATE={}-{}-{}", date.year(), date.month(), date.day());
/* profile matching */
match profile.as_str() {
"debug" => println!("cargo:rustc-env=PROFILE=debug"),
"release" => {
println!("cargo:rustc-env=PROFILE=release");
/* pre-build */
let path = download_node();
download_then_build(path);
/* cc linking */
cxx_build::bridge("src/lib.rs")
.file("lib/bridge.cc")
.file("lib/process.cc")
.file("lib/fork.cc")
.include("lib/include")
.flag_if_supported("-std=c++17")
.compile("bridge");
}
_ => println!("cargo:rustc-env=PROFILE=none"),
}
}

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