build.rs
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build.rs
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	use chrono::Datelike;
	use std::{env, process::Command};

	fn main() {
	#[cfg(windows)]
	{
	println!("cargo:warning=This project is not supported on Windows.");
	std::process::exit(1);
	}

	/* version attributes */
	let date = chrono::Utc::now();
	let profile = env::var("PROFILE").unwrap();
	let output = Command::new("git").args(&["rev-parse", "--short=10", "HEAD"]).output().unwrap();
	let output_full = Command::new("git").args(&["rev-parse", "HEAD"]).output().unwrap();

	println!("cargo:rustc-env=TARGET={}", env::var("TARGET").unwrap());
	println!("cargo:rustc-env=GIT_HASH={}", String::from_utf8(output.stdout).unwrap());
	println!("cargo:rustc-env=GIT_HASH_FULL={}", String::from_utf8(output_full.stdout).unwrap());
	println!("cargo:rustc-env=BUILD_DATE={}-{}-{}", date.year(), date.month(), date.day());

	/* profile matching */
	match profile.as_str() {
	"debug" => println!("cargo:rustc-env=PROFILE=debug"),
	"release" => println!("cargo:rustc-env=PROFILE=release"),
	_ => println!("cargo:rustc-env=PROFILE=none"),
	}

	/* cc linking */
	cxx_build::bridge("src/main.rs")
	.file("src/cc/bridge.cc")
	.file("src/cc/process.cc")
	.flag_if_supported("-std=c++14")
	.compile("bridge");

	let watched = vec!["main.rs", "cc/bridge.cc", "cc/process.cc", "include/process.h"];
	watched.iter().for_each(\|file\| println!("cargo:rerun-if-changed=src/{}", file));
	}