RHR ADIF File Splitter (Split by Location) by K4BEN

adif-splitter.js

/**
 * @file RemoteHamRadio ADIF File Splitter Command Line Tool
 * @copyright Ben Eastwood K4BEN 2022 (@k4ben on Github)
 */
 
 const fs = require('fs');

const USAGE = "usage: node adif-splitter.js <file>\n\n" +
              "split an RHR ADIF file by the \"APP_RHR_STATION_NAME\" field.\n";

function throwError(msg) {
  console.log(`ERROR: ${msg}\n\n${USAGE}`);
  process.exit();
}

function parseFile(contents) {
  let lines = contents.split("\n");
  let contacts = lines.filter(l => l.startsWith("<CALL"));
  let stations = {};
  contacts.forEach(c => {
    c.split("<").forEach(dirtyField => {
      if (dirtyField.split(":")[0] == "APP_RHR_STATION_NAME" && dirtyField.split(">")[1] !== null) {
        const stationName = dirtyField.split(">")[1];
        if (stations[stationName] == null) {
          stations[stationName] = [c];
        } else {
          stations[stationName].push(c);
        }
      }
    });
  });
  return stations;
}

const file = process.argv?.[2];
if (file == null) {
  throwError("no input file specified.");
  return;
}

fs.readFile(file, 'utf8' , (err, data) => {
  if (err) throwError(err.message.split(": ")[1]);
  const stationArrays = parseFile(data);
  console.log("Generated:");
  for (key in stationArrays) {
    const filename = key.replace("/", "_") + ".adi"
    const contents = stationArrays[key].reduce((prev, curr) => prev + "\n" + curr, "");
    fs.writeFile(filename, contents, err => { if (err) throw err });
    console.log(filename);
  }
})