openethereum/util/version/build.rs

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// Copyright 2015-2017 Parity Technologies (UK) Ltd.
// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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extern crate vergen;
extern crate rustc_version;
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use std::env;
use std::fs::File;
use std::io::Write;
use std::path::Path;
use vergen::{vergen, OutputFns};
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fn main() {
vergen(OutputFns::all()).unwrap();
let out_dir = env::var("OUT_DIR").unwrap();
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let dest_path = Path::new(&out_dir).join("rustc_version.rs");
let mut f = File::create(&dest_path).unwrap();
f.write_all(format!("
/// Returns compiler version.
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pub fn rustc_version() -> &'static str {{
\"{}\"
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}}
", rustc_version::version()).as_bytes()).unwrap();
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}