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Auto-fix legacy (N) suffix filenames on startup

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Detect items whose targetPath has a " (N)" suffix from the previous
duplicate filename bug and rename them back to the original filename.
This fixes extraction failures for RAR split archives that were
downloaded with (1) suffix before v1.7.19.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Sucukdeluxe 2026-03-07 19:36:30 +01:00
parent 135ba8616f
commit 927ff5c21a
1 changed files with 50 additions and 0 deletions
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50
src/main/download-manager.ts
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@ -3988,6 +3988,56 @@ export class DownloadManager extends EventEmitter {
if (restored > 0) { if (restored > 0) {
logger.info(`restoreTargetPathReservations: ${restored} Pfade aus Session wiederhergestellt`); logger.info(`restoreTargetPathReservations: ${restored} Pfade aus Session wiederhergestellt`);
} }
// Fix legacy (N) suffix files: rename back to original if original path is free
this.fixDuplicateSuffixFiles();
}
/** Detect items whose targetPath has a " (N)" suffix from a previous bug and rename
* them back to the original filename if the original path is not claimed by another item. */
private fixDuplicateSuffixFiles(): void {
const SUFFIX_RE = /^(.+) \(\d+\)(\.[^.]+)$/;
let fixed = 0;
for (const item of Object.values(this.session.items)) {
const tp = String(item.targetPath || "").trim();
if (!tp) continue;
const parsed = path.parse(tp);
const fullName = parsed.name + parsed.ext; // e.g. "file.part3 (1).rar"
const match = SUFFIX_RE.exec(fullName);
if (!match) continue;
const originalName = match[1] + match[2]; // "file.part3.rar"
const originalPath = path.join(parsed.dir, originalName);
const originalKey = pathKey(originalPath);
const originalOwner = this.reservedTargetPaths.get(originalKey);
// Only rename if original path is not claimed by another item and doesn't exist on disk
if (originalOwner && originalOwner !== item.id) continue;
if (!originalOwner && fs.existsSync(originalPath)) continue;
if (!fs.existsSync(tp)) {
// File with (N) doesn't exist either — just fix the path reference
this.reservedTargetPaths.delete(pathKey(tp));
this.reservedTargetPaths.set(originalKey, item.id);
this.claimedTargetPathByItem.set(item.id, originalPath);
item.targetPath = originalPath;
item.fileName = originalName;
fixed += 1;
continue;
}
try {
fs.renameSync(tp, originalPath);
this.reservedTargetPaths.delete(pathKey(tp));
this.reservedTargetPaths.set(originalKey, item.id);
this.claimedTargetPathByItem.set(item.id, originalPath);
item.targetPath = originalPath;
item.fileName = originalName;
fixed += 1;
logger.info(`fixDuplicateSuffix: ${path.basename(tp)} → ${originalName}`);
} catch (err) {
logger.warn(`fixDuplicateSuffix: Umbenennung fehlgeschlagen ${tp}: ${compactErrorText(err)}`);
}
}
if (fixed > 0) {
logger.info(`fixDuplicateSuffixFiles: ${fixed} Dateien korrigiert`);
this.persistSoon();
}
} }
private assignItemTargetPath(item: DownloadItem, targetPath: string): string { private assignItemTargetPath(item: DownloadItem, targetPath: string): string {