118 lines
3.3 KiB
Rust
118 lines
3.3 KiB
Rust
extern crate bindgen;
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#[cfg(windows)]
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extern crate flate2;
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extern crate glob;
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extern crate napi_build;
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#[cfg(windows)]
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extern crate reqwest;
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extern crate semver;
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#[cfg(windows)]
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extern crate tar;
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use glob::glob;
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use std::env;
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use std::path::PathBuf;
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use std::process::Command;
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// https://stackoverflow.com/questions/37498864/finding-executable-in-path-with-rust
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const NODE_PRINT_EXEC_PATH: &'static str = "console.log(process.execPath)";
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fn main() {
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napi_build::setup();
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let node_full_version =
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String::from_utf8(Command::new("node").arg("-v").output().unwrap().stdout).unwrap();
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let node_version = semver::Version::parse(node_full_version.as_str().get(1..).unwrap()).unwrap();
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let node_major_version = node_version.major;
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println!("cargo:rerun-if-env-changed=NODE_INCLUDE_PATH");
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for entry in glob("./src/sys/**/*.*").unwrap() {
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println!(
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"cargo:rerun-if-changed={}",
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entry.unwrap().to_str().unwrap()
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);
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}
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if node_major_version < 10 {
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panic!("node version is too low")
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}
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let node_include_path = find_node_include_path(node_full_version.trim_end());
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let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
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let mut sys_bindigs_path = PathBuf::from("src");
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sys_bindigs_path.push("sys");
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sys_bindigs_path.push("bindings.h");
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bindgen::Builder::default()
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.header(sys_bindigs_path.to_str().unwrap().to_owned())
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.clang_arg(String::from("-I") + node_include_path.to_str().unwrap())
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.rustified_enum("(napi_|uv_).+")
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.whitelist_function("(napi_|uv_|extras_).+")
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.whitelist_type("(napi_|uv_|extras_).+")
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.generate()
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.expect("Unable to generate napi bindings")
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.write_to_file(out_path.join("bindings.rs"))
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.expect("Unable to write napi bindings");
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}
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#[cfg(target_os = "windows")]
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fn find_node_include_path(node_full_version: &str) -> PathBuf {
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let mut node_exec_path = PathBuf::from(
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String::from_utf8(
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Command::new("node")
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.arg("-e")
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.arg(NODE_PRINT_EXEC_PATH)
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.output()
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.unwrap()
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.stdout,
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)
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.expect("can not find executable node"),
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)
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.parent()
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.unwrap()
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.to_path_buf();
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node_exec_path.push(format!("node-headers-{}.tar.gz", node_full_version));
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let mut header_dist_path = PathBuf::from(&PathBuf::from(&node_exec_path).parent().unwrap());
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let unpack_path = PathBuf::from(&header_dist_path);
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header_dist_path.push(format!("node-{}", node_full_version));
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header_dist_path.push("include");
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header_dist_path.push("node");
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if !header_dist_path.exists() {
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let header_file_download_url = String::from_utf8(
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Command::new("node")
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.args(vec!["-e", "console.log(process.release.headersUrl)"])
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.output()
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.unwrap()
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.stdout,
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)
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.unwrap();
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let resp = reqwest::blocking::get(&header_file_download_url).expect("request failed");
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tar::Archive::new(flate2::read::GzDecoder::new(resp))
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.unpack(&unpack_path)
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.expect("Unpack headers file failed");
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};
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header_dist_path
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}
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#[cfg(not(target_os = "windows"))]
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fn find_node_include_path(_node_full_version: &str) -> PathBuf {
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let node_exec_path = String::from_utf8(
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Command::new("node")
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.arg("-e")
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.arg(NODE_PRINT_EXEC_PATH)
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.output()
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.unwrap()
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.stdout,
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)
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.unwrap();
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PathBuf::from(node_exec_path)
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.parent()
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.unwrap()
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.parent()
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.unwrap()
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.join("include/node")
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}
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