[MirageOS-devel] Irmin roadmap

[Thomas Gazagnaire <thomas@xxxxxxxxxxxxxx>]

Hi all,

Lots of people starting asked me about the status of Irmin. As you might have 
notice, I'vent had much time to spend on Irmin last month, but I plan to fix 
that. My current priorities are:

1/ make Irmin compiles on the Xen backend of Mirage.  
https://github.com/mirage/irmin/issues/81
This means dropping the dependency to core_kernel (for now on). The external 
API will not change.

2/ improve the high-level JSON API. This is related to 
https://github.com/mirage/irmin/issues/80 
Currently, we only have a JSON API for the low-level stores, and the very 
partial implementation of the higher-level calls. Needs to complete and 
document that.

3/ implement a pure-ocaml Git server to be able to at least `git pull` from it. 
https://github.com/mirage/ocaml-git/issues/15 
Together with 1/ this will make possible to query the state of a running Mirage 
unikernel with a simple `git pull <vm-address>`

4/ implement a simple distributed log server 
.https://github.com/mirage/irmin/issues/82 
Could use Benjamin's rope implementation, that I first need to release properly.

5/ try to come up with a solution to the "unlimited" memory/storage usage 
issues https://github.com/mirage/irmin/issues/83
This is the most uncertain part of the short-term roadmap. I'll need to check 
again what are the limitation of Git shallow copies and see how we can use them 
to limit the history size to remember.

There are also few open embarrassing bugs that I want to fix as well (regarding 
fd leaks ...). 

If anyone is interested to help me on any of these topics, please feel free to 
comment on the related issues on Github -- I'll gladly share the workload. 
Also, feel free to reply to that email if you think there is any important 
Imrin features that you think are missing now.

Best,
Thomas
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