Have some kind of bot that automatically updates chain specs with new checkpoints

[tomaka]

As part of https://github.com/paritytech/substrate-connect/issues/543, we need an automated way to update the checkpoint found in the chain specifications found in this repo.

I would suggest having a script automatically open pull requests, and maybe a GitHub workflow merging them automatically after verifying that the author is correct and that nothing has been altered apart from the checkpoint.

Considering that the content of the checkpoint is critical for security, this should be done internally within Parity.

[tomaka]

After talking to Kirill, we could do the following:

• Either merge https://github.com/paritytech/substrate/pull/10832 or implement generating checkpoints in smoldot.
• Have in this repo a GitHub Action that either grabs the checkpoint from a public JSON-RPC node, or generates a checkpoint by running smoldot, then opens a pull request.
• Additionally, have another GitHub Action that, if a chain spec file is updated, checks whether smoldot can successfully connect to it and is on the same chain as a public JSON-RPC node.

[tomaka]

https://github.com/paritytech/substrate/pull/10832 being merged, we can wait for 0.9.18

[raoulmillais]

Does this mean we can close this issue @tomaka ?

[tomaka]

Almost

It just doesn't really work.

[raoulmillais]

This is now working

[tomaka]

Re-reading it, we also need this:

Additionally, have another GitHub Action that, if a chain spec file is updated, checks whether smoldot can successfully connect to it and is on the same chain as a public JSON-RPC node.