When I lose power, I have a lot of maybe-useful swap files (4 `vim` instances running now, 103 swap files currently in `~/.cache/vim/swap`). I am fine with manual recovery of swapfiles *with changes* - I'd just like a way to either:

1. delete all lock-only swapfiles post-reboot or other times I know there are no running `vim` instances
2. minimize the number of lock-only swapfiles to 1 per open instance of `vim`

I opened [an issue on Github](https://github.com/vim/vim/issues/3505) to see if `vim` could manage 2 without any plugins, etc, but unfortunately it was not deemed worthy of support hours.

I request a solution to either 1 or 2 which:

* is easy to remember - short, small, easy to copy-paste between computers
* and is *not* instructions for the computer to download or call a special dependency - ie, no `vim` plugins, Java programs, etc. The *entire* solution needs to be short enough to match the above criterion. So, ie, 5 lines of `python`/`perl`/`awk`/`vimscript`/etc would be great.

Attempted solutions:

* Haven't found a `vim` command-line flag to tell me if a swapfile is only a lockfile instead of a recovery file
* Haven't found a `vimscript` instruction to store lock and recovery files separately.
* Have read the source to 3-4 different vimscript plugins - one removes `set hidden` on buffer switch, another diffs swap files, another deletes swap files without regard for if they're lock files, etc. None (so far) are simple enough to be easily portable.
* [GitHub issue](https://github.com/vim/vim/issues/3505)
* `rm ~/.cache/vim/swap/*` - destroys recovery files along with the lock files

Have not yet tried:

* reading the swap file format to see if there's something I can hook to w/eg `grep`
* installing/testing various `vimscript` plugins - not very portable
* setting read-only mode by default, then setting it again when I save a buffer. I'm looking for something I do at most once per boot, not on every file access - if every file access that's why we have software.
* as the above, but w/o `set hidden` by default