64 lines
2.6 KiB
Rust
64 lines
2.6 KiB
Rust
use std::{env, io};
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use std::fs;
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use std::path::{Path, PathBuf};
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use std::process::Command;
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use hex_literal::hex;
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use sha2::{Digest, Sha512};
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fn main() {
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// Do not fetch lib on docs.rs as it cannot, build will fail, docs won't build
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// https://docs.rs/about/builds
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if std::env::var("DOCS_RS").is_err() {
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let out_dir = env::var_os("OUT_DIR").unwrap();
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println!("cargo:rustc-flags=-L {}", out_dir.to_str().unwrap());
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println!("cargo:rustc-link-lib=Cwtch");
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println!("cargo:rerun-if-changed=build.rs");
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println!("cargo:rerun-if-changed=libCwtch.h");
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// The bindgen::Builder is the main entry point
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// to bindgen, and lets you build up options for
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// the resulting bindings.
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let bindings = bindgen::Builder::default()
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// The input header we would like to generate
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// bindings for.
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.header("libCwtch.h")
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// Tell cargo to invalidate the built crate whenever any of the
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// included header files changed.
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.parse_callbacks(Box::new(bindgen::CargoCallbacks))
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// Finish the builder and generate the bindings.
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.generate()
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// Unwrap the Result and panic on failure.
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.expect("Unable to generate bindings");
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// Write the bindings to the $OUT_DIR/bindings.rs file.
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let out_path = PathBuf::from("src/cwtchlib_go");
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bindings
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.write_to_file(out_path.join("bindings.rs"))
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.expect("Couldn't write bindings!");
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let lib_cwtch_path = Path::new(&out_dir).join("libCwtch.so");
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if std::env::var("LCG_DIR").is_err() {
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Command::new("wget")
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.arg("https://git.openprivacy.ca/cwtch.im/autobindings/releases/download/v0.0.12/libCwtch.x64.so")
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.arg("-O")
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.arg(lib_cwtch_path.clone())
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.output()
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.expect("failed to download libCwtch.x64.so");
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let mut hasher = Sha512::new();
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let mut file = fs::File::open(&lib_cwtch_path).expect("could not open lib to hash");
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io::copy(&mut file, &mut hasher).expect("failed to copy file into hasher");
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let hash_bytes = hasher.finalize();
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assert_eq!(hash_bytes[..], hex!("a3742e0cdedc00eb3673063b100b7596b05bdc9bb68a0fba6fd2423c9a41f1653597c4d44ba3877be08cbb5bba2806435830061ab3517cdd4472a18c7557d9c7")[..]);
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} else {
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let local_lcg = Path::new(std::env::var("LCG_DIR").unwrap().as_str()).join("libCwtch.so");
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fs::copy(local_lcg, lib_cwtch_path).expect("could not find local lcg");
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}
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}
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}
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