generate-timezone-json/index.js

55 lines
1 KiB
JavaScript
Executable file

const fs = require("fs");
console.log("Generating Timezone JSON");
const args = process.argv;
if (args.length < 3) {
// no file
const tzdb = require("@vvo/tzdb");
console.log("... from IANA Database");
const data = JSON.stringify(tzdb.getTimeZones({ includeUtc: true }));
writeToFile(data);
} else {
// file name
const fileName = args[2];
const parseZonetab = require("parse-zonetab");
console.log("... from file", fileName);
fs.readFile(fileName, (err, raw) => {
if (err) throw err;
parseZonetab(raw).then(rows => {
const data = JSON.stringify(rows);
writeToFile(data);
});
});
}
function writeToFile(data) {
fs.writeFile("timezones.json", data, (err) => {
if (err) throw err;
console.log("... done writing to file: timezones.json");
});
}
/*
function compare(a, b) {
const bid = b.id || b.name;
const aid = a.id || a.name;
if (aid < bid) {
return -1;
}
if (aid > bid) {
return 1;
}
return 0;
};
*/