cargo-contract 2.0.2

// Copyright 2018-2022 Parity Technologies (UK) Ltd.
// This file is part of cargo-contract.
//
// cargo-contract 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.
//
// cargo-contract 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 cargo-contract.  If not, see <http://www.gnu.org/licenses/>.

use std::{
    borrow::Cow,
    process::Command,
};

use substrate_build_script_utils::rerun_if_git_head_changed;

fn main() {
    generate_cargo_keys();
    rerun_if_git_head_changed();
}

/// Generate the `cargo:` key output
fn generate_cargo_keys() {
    let output = Command::new("git")
        .args(["rev-parse", "--short", "HEAD"])
        .output();

    let commit = match output {
        Ok(o) if o.status.success() => {
            let sha = String::from_utf8_lossy(&o.stdout).trim().to_owned();
            Cow::from(sha)
        }
        Ok(o) => {
            println!("cargo:warning=Git command failed with status: {}", o.status);
            Cow::from("unknown")
        }
        Err(err) => {
            println!("cargo:warning=Failed to execute git command: {err}");
            Cow::from("unknown")
        }
    };

    println!(
        "cargo:rustc-env=CARGO_CONTRACT_CLI_IMPL_VERSION={}",
        get_version(&commit)
    )
}

fn get_version(impl_commit: &str) -> String {
    let commit_dash = if impl_commit.is_empty() { "" } else { "-" };

    format!(
        "{}{}{}-{}",
        std::env::var("CARGO_PKG_VERSION").unwrap_or_default(),
        commit_dash,
        impl_commit,
        current_platform::CURRENT_PLATFORM,
    )
}