80 lines
1.8 KiB
JavaScript
80 lines
1.8 KiB
JavaScript
import fs from "fs/promises";
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import ExifReader from "exifreader";
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import path from "path";
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if (process.argv.length === 2) {
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console.error("Expected exactly one argument");
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process.exit(1);
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}
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const dir = process.argv[2];
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let fileNames;
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try {
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fileNames = await fs.readdir(dir);
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} catch (error) {
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console.error("Error reading directory.", error);
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process.exit(2);
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}
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/**
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* @param fileName {string}
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* @return {Date|null}
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*/
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function getDateFromFileName(fileName) {
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const r = /(\d{4})-?(\d{2})-?(\d{2})[_\-](\d{2})-?(\d{2})-?(\d{2})/.exec(
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fileName,
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);
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if (!r) throw new Error("The file name did not match the pattern.");
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return new Date(`${r[1]}-${r[2]}-${r[3]}T${r[4]}:${r[5]}:${r[6]}`);
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}
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/**
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* @param filePath {string}
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* @param fileName {string}
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* @return {Promise<Date|null>}
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*/
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async function getDate(filePath, fileName) {
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if (/\.mp4$/.test(fileName)) {
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return getDateFromFileName(fileName);
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}
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const tags = await ExifReader.load(filePath);
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let timeString = tags.DateTime?.value[0];
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if (timeString === undefined) {
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return getDateFromFileName(fileName);
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}
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const exifDate = new Date(
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timeString.replace(
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/(\d{4}):(\d{2}):(\d{2}) (\d{2}):(\d{2}):(\d{2})/,
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"$1-$2-$3T$4:$5:$6",
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),
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);
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if (isNaN(exifDate.getTime()) || exifDate.getFullYear() < 2000) {
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return getDateFromFileName(fileName);
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}
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return exifDate;
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}
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for (const fileName of fileNames) {
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const filePath = path.resolve(dir, fileName);
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let date;
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try {
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date = await getDate(filePath, fileName);
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} catch (error) {
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console.error(filePath, error.message);
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continue;
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}
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if (date === null) {
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console.error(filePath, "Could not get a date.");
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continue;
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}
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console.log(filePath, date);
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await fs.utimes(filePath, date, date);
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}
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