use std::process::Command; const ZED_MANIFEST: &str = include_str!("../zed/Cargo.toml"); fn main() {    let zed_cargo_toml: cargo_toml::Manifest =        toml::from_str(ZED_MANIFEST).expect("failed to parse zed Cargo.toml");    println!(        "cargo:rustc-env=ZED_PKG_VERSION={}",        zed_cargo_toml.package.unwrap().version.unwrap()    );    println!(        "cargo:rustc-env=TARGET={}",        std::env::var("TARGET").unwrap()    );     // If we're building this for nightly, we want to set the ZED_COMMIT_SHA    if let Some(release_channel) = std::env::var("ZED_RELEASE_CHANNEL").ok() {        if release_channel.as_str() == "nightly" {            // Populate git sha environment variable if git is available            println!("cargo:rerun-if-changed=../../.git/logs/HEAD");            if let Some(output) = Command::new("git")                .args(["rev-parse", "HEAD"])                .output()                .ok()                .filter(|output| output.status.success())            {                let git_sha = String::from_utf8_lossy(&output.stdout);                let git_sha = git_sha.trim();                 println!("cargo:rustc-env=ZED_COMMIT_SHA={git_sha}");            }        }    }}