56 lines
1.9 KiB
JavaScript
56 lines
1.9 KiB
JavaScript
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'use strict';
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const fs = require('fs');
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const os = require('os');
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const path = require('path');
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function parseClientVersion(text) {
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const raw = String(text).match(/^ClientVersion=(\d+)\s*$/m)?.[1] || '';
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if (!raw) return null;
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const version = Number(raw);
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return Number.isInteger(version) && version > 0 && version <= 0xffffffff ? version : null;
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}
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function parseVersionOverride(value) {
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const raw = String(value ?? '').trim();
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if (!raw) return null;
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if (!/^\d+$/.test(raw)) throw new Error('DOTA_CLIENT_VERSION must contain digits only.');
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const version = Number(raw);
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if (!Number.isInteger(version) || version < 1 || version > 0xffffffff) {
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throw new Error('DOTA_CLIENT_VERSION must be an unsigned 32-bit integer.');
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}
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return version;
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}
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function defaultSteamInfFiles() {
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const home = os.homedir();
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return [
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process.env.DOTA_STEAM_INF,
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path.join(home, '.local', 'share', 'Steam', 'steamapps', 'common', 'dota 2 beta', 'game', 'dota', 'steam.inf'),
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path.join(home, '.steam', 'steam', 'steamapps', 'common', 'dota 2 beta', 'game', 'dota', 'steam.inf'),
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path.join('/steam', 'steamapps', 'common', 'dota 2 beta', 'game', 'dota', 'steam.inf'),
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].filter(Boolean);
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}
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function resolveDotaClientVersion(files = defaultSteamInfFiles()) {
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const override = parseVersionOverride(process.env.DOTA_CLIENT_VERSION);
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if (override) return { version: override, source: 'environment' };
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for (const file of [...new Set(files)]) {
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try {
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const version = parseClientVersion(fs.readFileSync(file, 'utf8'));
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if (version) return { version, source: file };
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} catch (err) {
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if (err.code !== 'ENOENT' && err.code !== 'ENOTDIR') {
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console.warn(`warn: could not read Dota client version ${file}: ${err.message}`);
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}
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}
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}
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return { version: null, source: null };
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}
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module.exports = {
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parseClientVersion,
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resolveDotaClientVersion,
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};
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