wasmer/lib/runtime-core/build.rs

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use blake2b_simd::blake2bp;
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use cc::Build;
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use std::{env, fs, io::Write, path::PathBuf};
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const WASMER_VERSION: &'static str = env!("CARGO_PKG_VERSION");
fn main() {
let mut state = blake2bp::State::new();
state.update(WASMER_VERSION.as_bytes());
let hasher = state.finalize();
let hash_string = hasher.to_hex().as_str().to_owned();
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let crate_dir = env::var("OUT_DIR").unwrap();
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let wasmer_version_hash_file = {
let mut path = PathBuf::from(&crate_dir);
path.push("wasmer_version_hash.txt");
path
};
let mut f_out = fs::File::create(wasmer_version_hash_file)
.expect("Could not create file for wasmer hash value");
f_out
.write_all(hash_string.as_bytes())
.expect("Could not write to file for wasmer hash value");
// Enable "nightly" cfg if the current compiler is nightly.
if rustc_version::version_meta().unwrap().channel == rustc_version::Channel::Nightly {
println!("cargo:rustc-cfg=nightly");
}
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cc::Build::new()
.file("image-loading.s")
.compile("image-loading");
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}