Refactor proto-compiler as a proper CLI app

[romac]

Closes: cosmos/ibc-proto-rs#17

Description

• Refactor the proto-compiler crate into a proper CLI app
• Allow specifying the commit of the Cosmos SDK to check out
• Expose the version (commit hash) of the SDK used when generating the proto library as a constant.

ibc-proto-compiler

Usage: ibc-proto-compiler <command> [<args>]

App

Options:
  --help            display usage information

Commands:
  clone-sdk         Clone
  compile           Compile

ibc-proto-compiler clone-sdk

Usage: ibc-proto-compiler clone-sdk [-c <commit>] -o <path>

Clone

Options:
  -c, --commit      commit to checkout
  -o, --path        where to checkout the repository
  --help            display usage information

ibc-proto-compiler compile

Usage: ibc-proto-compiler compile -s <sdk> -o <out>

Compile

Options:
  -s, --sdk         path to the Cosmos SDK
  -o, --out         path to output the generated Rust sources into
  --help            display usage information

---

For contributor use:

• Updated the Unreleased section of CHANGELOG.md with the issue.
• If applicable: Unit tests written, added test to CI.
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Updated relevant documentation (docs/) and code comments.
• Re-reviewed Files changed in the Github PR explorer.

[ancazamfir]

Looks great! Thanks Romain!

[ancazamfir]

Great UX :)
It would be nice to also have the [-t <tag>] option for clone-sdk so we can point to tags/ releases. I hope commit hashes become an exception.

[ancazamfir]

Great UX :)
It would be nice to also have the [-t <tag>] option for clone-sdk so we can point to tags/ releases. I hope commit hashes become an exception.

Actually, the cosmos-sdk for stargate-4 is at v0.40.0-rc0. But we can lookup the commit for now and merge this as this.

[romac]

It would be nice to also have the [-t ] option for clone-sdk so we can point to tags/ releases. I hope commit hashes become an exception.

Agreed! Let's do that in a follow-up PR so that we unblock #361 already.