@moddota/find-steam-app/lib/steam.js

Find location of an installed Steam app

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const tslib_1 = require("tslib");
const execa_1 = tslib_1.__importDefault(require("execa"));
const fs_extra_1 = tslib_1.__importDefault(require("fs-extra"));
const path_1 = tslib_1.__importDefault(require("path"));
const pathIfExists = async (name) => ((await fs_extra_1.default.pathExists(name)) ? name : undefined);
const getRegExePath = () => process.platform === 'win32' && process.env.windir != null
    ? path_1.default.join(process.env.windir, 'System32', 'reg.exe')
    : 'REG';
const REG_TREE_PATH = 'HKCU\\Software\\Valve\\Steam';
const REG_KEY_NOT_FOUND = 'The system was unable to find the specified registry key or value';
async function windows() {
    let programFiles = process.env['ProgramFiles(x86)'];
    if (programFiles == null)
        programFiles = process.env.ProgramFiles;
    if (programFiles != null && (await fs_extra_1.default.pathExists(`${programFiles}/Steam/Steam.exe`))) {
        return `${programFiles}/Steam`;
    }
    try {
        const output = await execa_1.default.stdout(getRegExePath(), ['QUERY', REG_TREE_PATH, '/v', 'SteamPath'], { cwd: undefined });
        const matches = output.match(/SteamPath\s+[A-Z_]+\s+(.+)/);
        if (!matches || matches[1] === '')
            throw new Error(`Unexpected output:\n${output.trim()}`);
        return pathIfExists(matches[1]);
    }
    catch (err) {
        if (!err.message.includes(REG_KEY_NOT_FOUND)) {
            throw err;
        }
    }
}
/**
 * Searches for Steam.
 *
 * @returns Location of Steam. `undefined` if Steam wasn't found.
 */
async function findSteam() {
    switch (process.platform) {
        case 'win32':
            return windows();
        case 'linux':
            return pathIfExists(`${process.env.HOME}/.local/share/Steam`);
        case 'darwin':
            return pathIfExists(`${process.env.HOME}/Library/Application Support/Steam`);
        default:
            throw new Error(`Steam finding isn't implemented for ${process.platform}`);
    }
}
exports.findSteam = findSteam;
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