list-of-top-level-domains/bin/helpers/generate-json-tld-list.js

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#!/usr/bin/env node
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const meName = 'generate-json-tld-enum.js';
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process.on('unhandledRejection', error => {
console.error(meName + ": (FATAL)", error);
process.exit(1);
});
const countries = require('country-data').countries;
const country = require('countryjs');
const parse = require('csv-parse');
const fs = require('fs-extra');
const path = require('path');
const md5File = require('md5-file/promise');
const pathinfo = require('pathinfo');
const program = require('commander');
const tmp = require('tmp');
tmp.setGracefulCleanup();
const fileTldListJson = path.dirname(require.main.filename) + '/../../formats/json/tld-list.json';
const fileTldsCsv = path.dirname(require.main.filename) + '/../../tlds.csv';
program
.option('-q, --quiet', 'Quiet Mode')
.parse(process.argv);
if (!program.quiet) {
console.log(meName);
console.log(" (c) 2017 Doug Bird, All Rights Reserved.");
console.log(" see README.md for licensing and other information");
console.log(" https://github.com/katmore/tld-enum#readme");
console.log("");
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console.log(" Generates new JSON format file 'tld-list.json' from the 'tlds.csv' file");
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console.log("");
}
(async() => {
const tmpDir = tmp.dirSync({ unsafeCleanup: true });
const fileNewTldListJson = tmpDir.name + '/tld-list.json';
let existingMd5 = null;
if (fs.existsSync(fileTldListJson)) {
existingMd5 = await md5File(fileTldListJson);
const pathinfoTlds = pathinfo(fileTldListJson);
const fileBackupTlds = pathinfoTlds.dirname + pathinfoTlds.sep + pathinfoTlds.basename + '-' + existingMd5 + '-backup.json';
if (!fs.existsSync(fileBackupTlds)) {
fs.copySync(fileTldListJson, fileBackupTlds);
}
}
process.stdout.write("reading 'tlds.csv'...");
let parser = parse({ delimiter: ',' });
let tldEnum = [];
parser.on('readable', function() {
let i = 0;
let row;
while (row = parser.read()) {
if (!row.length) {
console.error(meName + ": (FATAL) invalid 'tlds.csv' row #" + i + ": " + fileTldsCsv);
process.exit(1);
}
tldEnum.push(row[0]);
i++;
}
});
parser.write(fs.readFileSync(fileTldsCsv));
parser.end();
console.log("done");
process.stdout.write("generating new 'tld-list.json' file...");
fs.writeFileSync(fileNewTldListJson, JSON.stringify(tldEnum, null, 2));
console.log("done");
if (existingMd5) {
const newMd5 = await md5File(fileNewTldListJson);
if (newMd5 == existingMd5) {
console.error(meName + ": (NOTICE) ignoring newly generated 'tld-list.json' file that is identical to the existing file (md5: " + existingMd5 + ", path: " + fileTldListJson + ")");
return;
}
}
fs.copySync(fileNewTldListJson, fileTldListJson);
console.log("saved new 'tld-list.json' file");
})();