dioxus-cli 0.7.4

use std::process::Command;

fn main() {
    println!("cargo:rerun-if-env-changed=DIOXUS_CLI_GIT_SHA");
    println!("cargo:rerun-if-env-changed=DIOXUS_CLI_GIT_SHA_SHORT");
    println!("cargo:rerun-if-changed=.git/HEAD");
    println!("cargo:rerun-if-changed=.git/refs");

    let full_hash = std::env::var("DIOXUS_CLI_GIT_SHA")
        .ok()
        .or_else(resolve_git_commit_hash);

    if let Some(full_hash) = full_hash {
        println!("cargo:rustc-env=DIOXUS_CLI_GIT_SHA={full_hash}");

        let short_hash = std::env::var("DIOXUS_CLI_GIT_SHA_SHORT")
            .ok()
            .unwrap_or_else(|| full_hash.chars().take(7).collect());

        println!("cargo:rustc-env=DIOXUS_CLI_GIT_SHA_SHORT={short_hash}");
    }
}

fn resolve_git_commit_hash() -> Option<String> {
    let output = Command::new("git")
        .args(["rev-parse", "HEAD"])
        .output()
        .ok()?;

    if !output.status.success() {
        return None;
    }

    let hash = String::from_utf8(output.stdout).ok()?;
    let hash = hash.trim().to_string();

    if hash.is_empty() {
        None
    } else {
        Some(hash)
    }
}