indexDB with cloudflare workers for using git in workers

Developers Workers
1

I was wondering if we could run git in workers:

The only thing this library requires is indexedDB. is there any possibility to support this somehow? I tried doing:

const indexedDB = require("idb")

for idb - npm

but did not work as expected, and I get the following error from isomorphic-git

indexedDB is not defined
2

While IDBFactory (indexDB) is a part of V8, it is removed by Cloudflare, this is why it’s “undefined”.

Also, keep in mind that such a database would only be usable during the request since workers don’t persist for a long time.

3

I just want to use it during the request, why was it decided to remove indexedDB though?

setting global.indexedDB = idb makes indexedDB available but the menthods are not the same, so my usecase does not work with cloudflare workers but interesting to know that this is possible.

4

What’s your use-case for using it only for a single request? I’m curious.

1 Like
5

I was trying to build a api service which uses git using : GitHub - isomorphic-git/isomorphic-git: A pure JavaScript implementation of git for node and browsers!

this uses indexedDB so, this is just cloning the repo making modifications and then pushing it. but now that I think cloudlare workers will have some memory limitations which won’t let it clone larger repositories anyway.

So falling back to using github api

6

Check out GitLab’s requirements relative to GitHub:

7

thanks for the link but i am not looking to selfhost git, just using the git command is what I meant

8

It’s info regarding using a different database. Unless you use Windows. GitLab doesn’t support it.

9

I want to chime in just because I’ve honestly thought about doing this to but of course never had time to get around to it. But as the author of isomorphic-git, I’m always curious how it could be used in different environments.

@hrishikeshbman what were the memory limitations you ran into? I’m super curious.

1 Like
10

See

https://developers.cloudflare.com/workers/reference/runtime/limits/

Workers have a 128mb memory limit, I don’t think they specifically ran into it though.

11

And the 128MB limit is not per-request, but during the lifetime of the worker until it get evacuated. So even if you don’t use the full 128MB during the request, subsequent requests might fill it.