A simple JSON file store written in Rust. This is a port of the Node.js library json-file-store.
WARNING: Don't use it if you want to persist a large amount of objects. Use a real DB instead.
See docs.rs/jfs.
Copyright (c) 2016 - 2021 Markus Kohlhase
This library is licensed under either of
at your option.
I tried to use single mode in Store configuration, it worked fine on linux but fails on windows with this error
'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 5, kind: PermissionDenied, message: "Access is denied." }
when investigated found that the issue is rename function which tries to rename a file still oppened.
so changed it to be the last call and dropped the values of tem_file and file to close the oppened files and then connect them,
also there are some problems in unit testing for windows, specially with multthreading for these methods
single_save_and_read_multi_threaded
single_new_multi_threaded
Thank you for the awesome library!
I am trying to write a CLI where JFS is used. Users might invoke this CLI in parallel. I can see unit tests for validating multi threaded access, but I couldn't see anything concrete for multi process access.
questionI think it'll be good to have a default implementation. Without this, users cannot use #[derive(Debug)] on their structs that use JFS as a field. Hence users have to implement debug for the whole struct manually due to just one field.
Also see:
This looks like a great project. I'm looking at using it, thanks for the work.
I cleaned up a few things in the tests related to where the data is stored. Always put it in target/ so that there's no pollution in the local dir.
I also generified the constructors so that you can pass in Path based parameters. I need to build some wrappers on the actual DB file, so this was going to be important. Added some docs on those methods too.
👋 Thank you for writing JFS!
I am using it as an alternative store for a side project.
While running my tests, I noticed that my delete case would sporadically fail.
It does a bunch of inserts, then a bunch of deletes and then reads to see if they still there.
I think adding a f.sync_all()? at the end of save_object_to_file should at least alleviate the case.
I can open a PR if you want.
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