Have an URL know which file it produced

[Zweibach]

I've been doing a lot of dupe work lately and sometimes I have to look up the source to double-check things. A problem arises when you're trying to check a file that you've already done a some dupes for so it has a lot of attached URLs since I move them to the better copy.

I would like it if an URL could in some way indicate that "Yes, I am the URL that produced this file" so you knew which one is correct. Perhaps also some indication that an URL was from a lesser copy.

It would also be useful if this URL then got placed at the top of copy-url lists and the like, or the default copyable URL.

Perhaps also a job to verify URL-file associations, low-priority since it'd require the downloading and hash-checking of the file again.

[bbappserver]

Perhaps the metadata merge should simply retain the URL associations for all hashes in the group, rather than doing a hard copy and present directly related urls then a vertical bar, then all urls from other hashes in the duplicate group.

[Zweibach]

After the fanbox debacle and trying to clean up the resulting mess I think Hydrus should track how an URL was associated with a file. The most common ones I can think of though I don't expect all of them to be added are:

• The URL the file came from (booru posts)
• Associated URLs (booru source links)
• URLs added through the duplicates filter (the original cause of me making this issue)
• Manually added URLs (like when I add the exh link to funny hentai quotes)
• URLs added through the API (importing hydownloader stuff)

A screenshot of the result of the fanbox URL class being misconfigured and fucking up danbooru downloads

[Felidae0]

Potentially-useful suggestion for additional sorting options, and how to visually represent context for URLs: #1316