build.rs

use std::{error::Error, fs, io::Write};

use serde_derive::Deserialize;

#[derive(Deserialize, Debug)]
struct Package {
    pub authors: Vec<String>,
    pub name: String,
    pub version: String,
    pub description: String,
}

#[derive(Deserialize)]
struct TomlData {
    pub package: Package,
}

fn main() -> Result<(), Box<dyn Error>> {
    println!("cargo:rerun-if-changed=README.md");
    println!("cargo:rerun-if-changed=Cargo.lock");
    println!("cargo:rerun-if-changed=Cargo.toml");
    println!("cargo:rerun-if-changed=LICENSE");

    let toml = fs::read_to_string("Cargo.toml")?;
    let data: TomlData = toml::from_str(&toml)?;

    let package = data.package;
    let id = package.name.replace('-', "_"); // 符合magisk module id要求
    let version_code: usize = package.version.replace('.', "").trim().parse()?; // 转为纯数字版本
    let authors = package.authors;
    let mut author = String::new();
    for a in authors {
        author = format!("{author}{a} ");
    }
    let author = author.trim();

    let mut file = fs::OpenOptions::new()
        .create(true)
        .truncate(true)
        .write(true)
        .open("module/module.prop")?;

    writeln!(file, "id={id}")?;
    writeln!(file, "name={}", package.name)?;
    writeln!(file, "version=v{}", package.version)?;
    writeln!(file, "versionCode={version_code}")?;
    writeln!(file, "author={author}")?;
    writeln!(file, "description={}", package.description)?;

    let _ = fs::remove_file("module/README.md");
    fs::copy("README.md", "module/README.md")?;

    Ok(())
}