50 lines
1.2 KiB
JavaScript
Executable file
50 lines
1.2 KiB
JavaScript
Executable file
#!/usr/bin/env node
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const fs = require('fs');
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const args = process.argv;
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console.log("Generating Timezone JSON");
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if (args.length < 3) {
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// no file
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const tzdb = require("@vvo/tzdb");
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const data = JSON.stringify(tzdb.getTimeZones({ includeUtc: true }));
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console.log("... from IANA Database");
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writeToFile(data);
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} else {
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// file name
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const fileName = args[2];
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if (isTabFile(fileName)) {
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const parseZonetab = require("parse-zonetab");
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fs.readFile(fileName, (err, raw) => {
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if (err) throw err;
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parseZonetab(raw).then(rows => {
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const data = JSON.stringify(rows);
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console.log("... from file", fileName);
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writeToFile(data);
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});
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});
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} else {
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console.error('Error: input not a TAB file', fileName)
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}
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}
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function isTabFile(fileName) {
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if (!!fileName && fileName !== '') {
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const extension = fileName.split('.')[1];
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return (extension && extension.toLowerCase()) === 'tab';
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}
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return false;
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}
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function writeToFile(data) {
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fs.writeFile("timezones.json", data, (err) => {
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if (err) throw err;
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console.log("... done writing to file: timezones.json");
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});
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}
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