napi-rs/sys/build.rs

106 lines
3.1 KiB
Rust

extern crate bindgen;
extern crate glob;
extern crate semver;
#[cfg(target_os = "windows")]
extern crate tar;
use glob::glob;
use std::env;
use std::path::PathBuf;
use std::process::Command;
#[cfg(not(any(target_os = "windows", napidocsrs)))]
const NODE_PRINT_EXEC_PATH: &'static str = "console.log(process.execPath)";
fn main() {
let node_full_version =
String::from_utf8(Command::new("node").arg("-v").output().unwrap().stdout).unwrap();
let node_version = semver::Version::parse(node_full_version.as_str().get(1..).unwrap()).unwrap();
let node_major_version = node_version.major;
println!("cargo:rerun-if-env-changed=NODE_INCLUDE_PATH");
for entry in glob("./src/**/*.*").unwrap() {
println!(
"cargo:rerun-if-changed={}",
entry.unwrap().to_str().unwrap()
);
}
if node_major_version < 10 {
panic!("node version is too low")
}
let node_include_path = find_node_include_path(node_full_version.trim_end());
let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
let mut sys_bindings_path = PathBuf::from("src");
sys_bindings_path.push("bindings.h");
bindgen::Builder::default()
.derive_default(true)
.header(sys_bindings_path.to_str().unwrap().to_owned())
.clang_arg(String::from("-I") + node_include_path.to_str().unwrap())
.rustified_enum("(napi_|uv_).+")
.whitelist_function("(napi_|uv_|extras_).+")
.whitelist_type("(napi_|uv_|extras_).+")
.generate()
.expect("Unable to generate napi bindings")
.write_to_file(out_path.join("bindings.rs"))
.expect("Unable to write napi bindings");
}
#[cfg(all(target_os = "windows", not(napidocsrs)))]
fn find_node_include_path(node_full_version: &str) -> PathBuf {
let mut out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
out_path.push(format!("node-headers-{}.tar.gz", node_full_version));
let mut header_dist_path = PathBuf::from(&PathBuf::from(&out_path).parent().unwrap());
let unpack_path = PathBuf::from(&header_dist_path);
header_dist_path.push(format!("node-{}", node_full_version));
header_dist_path.push("include");
header_dist_path.push("node");
if !header_dist_path.exists() {
let script = r#"require('https').get(process.release.headersUrl, function (res) {
res.pipe(require('zlib').createUnzip()).pipe(process.stdout)
})"#;
let tar_binary = Command::new("node")
.arg("-e")
.arg(script)
.output()
.expect("Download headers file failed")
.stdout;
tar::Archive::new(tar_binary.as_slice())
.unpack(&unpack_path)
.expect("Unpack headers file failed");
};
header_dist_path
}
#[cfg(napidocsrs)]
fn find_node_include_path(_node_full_version: &str) -> PathBuf {
let mut current = env::current_dir().unwrap();
current.push(".node-headers");
current
}
#[cfg(not(any(target_os = "windows", napidocsrs)))]
fn find_node_include_path(_node_full_version: &str) -> PathBuf {
let node_exec_path = String::from_utf8(
Command::new("node")
.arg("-e")
.arg(NODE_PRINT_EXEC_PATH)
.output()
.unwrap()
.stdout,
)
.unwrap();
PathBuf::from(node_exec_path)
.parent()
.unwrap()
.parent()
.unwrap()
.join("include/node")
}