Thomas Eizinger 0c85839dab
.github/workflows: Refactor CI jobs (#3090)
We refactor our continuous integration workflow with the following goals in mind:

- Run as few jobs as possible
- Have the jobs finish as fast as possible
- Have the jobs redo as little work as possible

There are only so many jobs that GitHub Actions will run in parallel.
Thus, it makes sense to not create massive matrices but instead group
things together meaningfully.

The new `test` job will:

- Run once for each crate
- Ensure that the crate compiles on its specified MSRV
- Ensure that the tests pass
- Ensure that there are no semver violations

This is an improvement to before because we are running all of these
in parallel which speeds up execution and highlights more errors at
once. Previously, tests run later in the pipeline would not get run
at all until you make sure the "first" one passes.

We also previously did not verify the MSRV of each crate, making the
setting in the `Cargo.toml` rather pointless.

The new `cross` job supersedes the existing `wasm` job.

This is an improvement because we now also compile the crate for
windows and MacOS. Something that wasn't checked before.
We assume that checking MSRV and the tests under Linux is good enough.
Hence, this job only checks for compile-errors.

The new `feature_matrix` ensures we compile correctly with certain feature combinations.

`libp2p` exposes a fair few feature-flags. Some of the combinations
are worth checking independently. For the moment, this concerns only
the executor related transports together with the executor flags but
this list can easily be extended.

The new `clippy` job runs for `stable` and `beta` rust.

Clippy gets continuously extended with new lints. Up until now, we would only
learn about those as soon as a new version of Rust is released and CI would
run the new lints. This leads to unrelated failures in CI. Running clippy on with `beta`
Rust gives us a heads-up of 6 weeks before these lints land on stable.

Fixes #2951.
2022-11-18 11:04:16 +00:00

Central repository for work on libp2p

dependency status Crates.io docs.rs

This repository is the central place for Rust development of the libp2p spec.

Getting started

Repository Structure

The main components of this repository are structured as follows:

  • core/: The implementation of libp2p-core with its Transport and StreamMuxer API on which almost all other crates depend.

  • transports/: Implementations of transport protocols (e.g. TCP) and protocol upgrades (e.g. for authenticated encryption, compression, ...) based on the libp2p-core Transport API .

  • muxers/: Implementations of the StreamMuxer interface of libp2p-core, e.g. (sub)stream multiplexing protocols on top of (typically TCP) connections. Multiplexing protocols are (mandatory) Transport upgrades.

  • swarm/: The implementation of libp2p-swarm building on libp2p-core with the central interfaces NetworkBehaviour and ConnectionHandler used to implement application protocols (see protocols/).

  • protocols/: Implementations of application protocols based on the libp2p-swarm APIs.

  • misc/: Utility libraries.

  • examples/: Worked examples of built-in application protocols (see protocols/) with common Transport configurations.

Community Guidelines

The libp2p project operates under the IPFS Code of Conduct.

tl;dr

  • Be respectful.
  • We're here to help: abuse@ipfs.io
  • Abusive behavior is never tolerated.
  • Violations of this code may result in swift and permanent expulsion from the IPFS [and libp2p] community.
  • "Too long, didn't read" is not a valid excuse for not knowing what is in this document.

Maintainers

(In alphabetical order.)

Notable users

(open a pull request if you want your project to be added here)

  • COMIT - BitcoinMonero Cross-chain Atomic Swap.
  • Forest - An implementation of Filecoin written in Rust.
  • fuel-core - A Rust implementation of the Fuel protocol.
  • ipfs-embed - A small embeddable ipfs implementation used and maintained by [Actyx][https://www.actyx.com].
  • iroh - Next-generation implementation of IPFS for Cloud & Mobile platforms.
  • Lighthouse - Ethereum consensus client in Rust.
  • Locutus - Global, observable, decentralized key-value store.
  • rust-ipfs - IPFS implementation in Rust.
  • Starcoin - A smart contract blockchain network that scales by layering.
  • Subspace - Subspace Network reference implementation
  • Substrate - Framework for blockchain innovation, used by Polkadot.
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