blinky/blinky.js

66 lines
1.7 KiB
JavaScript

const logger = require('./libs/logger.js');
const util = require('./libs/util.js');
const cli = require('./libs/cli.js');
const server = require('./libs/server.js');
const packageJSON = require('./package');
const INTERRUPTS = ['SIGINT', 'SIGTERM'];
global.config = undefined;
global.appName = packageJSON.name;
global.appVersion = packageJSON.version;
// handle interrupts
handleInterrupts();
// start the application
main()
.catch(exit);
async function main() {
await setGlobalConfig();
logger.initialize();
logger.info(global.appName + ' ' + global.appVersion + ' starting...');
if (await cli.handleArguments()) {
exit();
}
logger.info(await server.start());
server.handleRequests();
}
async function setGlobalConfig() {
let config = __dirname + '/config.json';
let index = process.argv.indexOf(cli.ARG_CONFIG);
if (index >= 0 && process.argv.length >= index + 1) {
config = process.argv[index + 1];
}
config = await util.fileExists(config);
global.config = require(config.path);
global.config.path = config.path;
}
function handleInterrupts() {
for (let index = 0; index < INTERRUPTS.length; index++) {
process.once(INTERRUPTS[index], (code) => {
exit(null, code);
});
}
}
function exit(err, code) {
if (code === undefined) {
code = 0;
if (err !== undefined) {
code = 1;
}
}
if (err) {
logger.error(err);
logger.error(global.appName + ' ' + global.appVersion + ' ended due to an error');
} else {
logger.info(global.appName + ' ' + global.appVersion + ' shutting down gracefully')
}
process.exit(code);
}