2022-04-26 19:06:43 +00:00
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use std::{env, io};
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2022-01-17 23:24:58 +00:00
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use std::fs;
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2021-09-04 03:36:35 +00:00
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use std::path::Path;
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2022-01-16 19:06:30 +00:00
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use std::process::Command;
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2022-01-17 23:24:58 +00:00
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use hex_literal::hex;
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use sha2::{Digest, Sha512};
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2021-09-04 03:36:35 +00:00
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fn main() {
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2022-04-27 20:03:10 +00:00
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2022-04-26 19:06:43 +00:00
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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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2021-09-04 03:36:35 +00:00
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2022-04-26 19:06:43 +00:00
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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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2021-09-04 03:36:35 +00:00
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2022-04-26 19:06:43 +00:00
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let lib_cwtch_path = Path::new(&out_dir).join("libCwtch.so");
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2022-04-27 20:03:10 +00:00
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if std::env::var("LCG_DIR").is_err() {
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// https://git.openprivacy.ca/cwtch.im/libcwtch-go/releases v1.7.1
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Command::new("wget")
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2023-05-07 18:21:14 +00:00
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.arg("https://git.openprivacy.ca/attachments/5fa8e7f5-13c2-4634-b531-0398cd7c6353")
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2022-04-27 20:03:10 +00:00
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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.so");
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2022-01-17 23:24:58 +00:00
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2022-04-27 20:03:10 +00:00
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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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2022-01-17 23:24:58 +00:00
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2023-05-07 18:21:14 +00:00
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assert_eq!(hash_bytes[..], hex!("dc53eb4948357128a72f740cf48402e966e886c60bc150bd26d10d3c98dda64c3658322c15f3b93781365d40dd4315b1056fb9aa6ee3a56f8968d4bff1bc8f0d")[..]);
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2022-04-27 20:03:10 +00:00
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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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2022-04-26 19:06:43 +00:00
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}
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2022-01-16 19:06:30 +00:00
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}
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