ffffng/server/config.ts

78 lines
2.3 KiB
TypeScript

import commandLineArgs from "command-line-args"
import commandLineUsage from "command-line-usage"
import fs from "graceful-fs"
import url from "url"
import {parse} from "sparkson"
import {Config, Version} from "./types"
// @ts-ignore
export let config: Config = {};
export let version: Version = "unknown";
export function parseCommandLine(): void {
const commandLineDefs = [
{ name: 'help', alias: 'h', type: Boolean, description: 'Show this help' },
{ name: 'config', alias: 'c', type: String, description: 'Location of config.json' },
{ name: 'version', alias: 'v', type: Boolean, description: 'Show ffffng version' }
];
let commandLineOptions;
try {
commandLineOptions = commandLineArgs(commandLineDefs);
} catch (e) {
console.error(e.message);
console.error('Try \'--help\' for more information.');
process.exit(1);
}
const packageJsonFile = __dirname + '/../package.json';
if (fs.existsSync(packageJsonFile)) {
version = JSON.parse(fs.readFileSync(packageJsonFile, 'utf8')).version;
}
function usage () {
console.log(commandLineUsage([
{
header: 'ffffng - ' + version + ' - Freifunk node management form',
optionList: commandLineDefs
}
]));
}
if (commandLineOptions.help) {
usage();
process.exit(0);
}
if (commandLineOptions.version) {
console.log('ffffng - ' + version);
process.exit(0);
}
if (!commandLineOptions.config) {
usage();
process.exit(1);
}
const configJSONFile = commandLineOptions.config;
let configJSON = {};
if (fs.existsSync(configJSONFile)) {
configJSON = JSON.parse(fs.readFileSync(configJSONFile, 'utf8'));
} else {
console.error('config.json not found: ' + configJSONFile);
process.exit(1);
}
config = parse(Config, configJSON);
function stripTrailingSlash(url: string): string {
return url.endsWith("/") ? url.substr(0, url.length - 1) : url;
}
config.server.baseUrl = stripTrailingSlash(config.server.baseUrl);
config.client.map.mapUrl = stripTrailingSlash(config.client.map.mapUrl);
config.server.rootPath = url.parse(config.server.baseUrl).pathname || "/";
config.client.rootPath = config.server.rootPath;
}