sc4/lib/plugins/folder-to-package-id.js

A command line utility for automating SimCity 4 modding tasks & modifying savegames

// # folder-to-package-id.js
import path from 'node:path';
// # folderToPackageId(folder)
// Returns the corresponding sc4pac package id from a given folder. If this is 
// not an sc4pac folder, we return nothing.
export default function folderToPackageId(folder, opts = {}) {
    let { strict = false } = opts;
    let basename = path.basename(folder);
    while (!basename.endsWith('.sc4pac')) {
        if (strict)
            return null;
        folder = path.resolve(folder, '..');
        basename = path.basename(folder);
        if (!basename)
            return null;
    }
    let [group, name] = basename.split('.');
    return `${group}:${name}`;
}