drift-meter/measure-drift.mjs

#!/usr/bin/zx

const label_file_path = process.argv.slice(-2)[0];
const align_to = process.argv.slice(-2)[1];

const labels = (await $`cat ${label_file_path}`).stdout
  .split("\n")
  .filter((e) => e != "")
  .map((l) => l.split("\t"))
  .map(([start, stop, label]) => {
    const suffix = label.match(/-[^-]+$/)[0];
    const filename = label.replace(suffix, "");
    return {
      time: parseFloat(start),
      label,
      filename,
      suffix: suffix.slice(1),
    };
  })
  .reduce((acc, element) => {
    if (!acc[element.filename]) {
      acc[element.filename] = {
        labels: {},
      };
    }
    acc[element.filename].labels[element.suffix] = element.time;
    return acc;
  }, {});

for (let filename in labels) {
  const filelabels = labels[filename].labels;
  for (const suffix of ["A", "B"]) {
    const duration =
      filelabels[`end${suffix}`] - filelabels[`start${suffix}`] || null;
    const key = `duration[${suffix}]`;
    labels[filename][key] = duration;
  }
}

for (let filename1 in labels) {
  for (let filename2 in labels) {
    if (filename1 === filename2) {
      continue;
    }
    for (const suffix of ["A", "B"]) {
      const key = `duration[${suffix}]`;

      if (
        labels[filename1][key] &&
        labels[filename2][key] &&
        filename2 == align_to
      ) {
        console.log(
          "Aby dostosować",
          filename1,
          "do",
          filename2,
          "należy odpalić change-length z parametrem",
          `${labels[filename2][key] / labels[filename1][key]}`
        );
        break;
      }
    }
  }
}