google-photos-migrate/esm/media/save-to-dir.js

A tool to fix EXIF data and recover filenames from a Google Photos takeout.

import { move, pathExists } from 'fs-extra';
import { copyFile, mkdir } from 'fs/promises';
import { basename, resolve } from 'path';
import sanitize from 'sanitize-filename';
async function _saveToDir(file, destDir, saveBase, doMove = false, duplicateIndex = 0) {
    const saveDir = resolve(destDir, duplicateIndex > 0 ? `duplicates-${duplicateIndex}` : '.');
    await mkdir(saveDir, { recursive: true });
    const savePath = resolve(saveDir, saveBase);
    const exists = await pathExists(savePath);
    if (exists) {
        return _saveToDir(file, destDir, saveBase, doMove, duplicateIndex + 1);
    }
    if (doMove) {
        await move(file, savePath);
    }
    else {
        await copyFile(file, savePath);
    }
    return savePath;
}
/** Copies or moves a file to dir, saves duplicates in subfolders and returns the new path.
 * Atomic within this app, sanitizes filenames.
 */
export async function saveToDir(file, destDir, migCtx, move = false, saveBase) {
    saveBase = saveBase ?? basename(file);
    let sanitized = sanitize(saveBase, { replacement: '_' });
    if (sanitized === '') {
        sanitized = migCtx.renameEmpty;
    }
    if (saveBase != sanitized) {
        migCtx.warnLog(`Sanitized file: ${file}` + ` (New filename: ${sanitized})`);
    }
    const lcBase = saveBase.toLowerCase();
    let lock;
    while ((lock = migCtx.migrationLocks.get(lcBase))) {
        await lock;
    }
    lock = _saveToDir(file, destDir, sanitized, move);
    migCtx.migrationLocks.set(lcBase, lock);
    try {
        return await lock;
    }
    finally {
        migCtx.migrationLocks.delete(lcBase);
    }
}