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The File Filesystem (2021)

(mgree.github.io)
346 points wegwerff | 1 comments | 30 Apr 24 17:43 UTC | HN request time: 0.258s | source
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paulgb ◴[30 Apr 24 21:10 UTC] No.40216398[source]▶
This is really neat, but when I saw the headline I got excited that it was something I have been looking for / considering writing, and I figure the comments here would be a good place to ask if something like this exists:

Is there a FUSE filesystem that runs in-memory (like tmpfs) while mounted, and then when dismounted it serializes to a single file on disk? The closest I can find are FUSE drivers that mount archive files, but then you don't get things like symlinks.

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1. speps ◴[30 Apr 24 21:50 UTC] No.40216812[source]▶
Closest I found: https://github.com/guardianproject/libsqlfs

> The libsqlfs library implements a POSIX style file system on top of an SQLite database. It allows applications to have access to a full read/write file system in a single file, complete with its own file hierarchy and name space. This is useful for applications which needs structured storage, such as embedding documents within documents, or management of configuration data or preferences. Libsqlfs can be used as an shared library, or it can be built as a FUSE (Linux File System in User Space) module to allow a libsqlfs database to be accessed via OS level file system interfaces by normal applications.