/*
 * hurl (https://hurl.dev)
 * Copyright (C) 2020 Orange
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *          http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */
use std::process;

// objectives
// get version
// get git commit
// get build date
// => hard-code into your binaries
fn main() {
    // Make the current git hash available to the build.
    if let Some(rev) = git_revision_hash() {
        println!("cargo:rustc-env=HURL_BUILD_GIT_HASH={}", rev);
    }
}

fn git_revision_hash() -> Option<String> {
    let result = process::Command::new("git")
        .args(&["rev-parse", "--short=10", "HEAD"])
        .output();
    result.ok().and_then(|output| {
        let v = String::from_utf8_lossy(&output.stdout).trim().to_string();
        if v.is_empty() {
            None
        } else {
            Some(v)
        }
    })
}