msrv.md

Quickstart + MSRV CI workflow

This workflow is doing almost the same what Quickstart workflow does, except all jobs are invoked twice: for latest stable Rust and for MSRV (Minimal Supported Rust Version) toolchain.

When it can be used?

1. You have a simple Rust project
2. It can be compiled with the stable Rust compiler
3. You also have a policy about minimal supported Rust version (ex. "this crate can be compiled with Rust 1.31.0 and higher") and you want to guarantee that

Workflow

on: [push, pull_request]

name: Continuous integration

jobs:
  check:
    name: Check
    runs-on: ubuntu-latest
    strategy:
      matrix:
        rust:
          - stable
          - 1.31.0
    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: ${{ matrix.rust }}
          override: true
      - uses: actions-rs/cargo@v1
        with:
          command: check

  test:
    name: Test Suite
    runs-on: ubuntu-latest
    strategy:
      matrix:
        rust:
          - stable
          - 1.31.0
    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: ${{ matrix.rust }}
          override: true
      - uses: actions-rs/cargo@v1
        with:
          command: test

  fmt:
    name: Rustfmt
    runs-on: ubuntu-latest
    strategy:
      matrix:
        rust:
          - stable
          - 1.31.0
    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: ${{ matrix.rust }}
          override: true
      - run: rustup component add rustfmt
      - uses: actions-rs/cargo@v1
        with:
          command: fmt
          args: --all -- --check

  clippy:
    name: Clippy
    runs-on: ubuntu-latest
    strategy:
      matrix:
        rust:
          - stable
          - 1.31.0
    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: ${{ matrix.rust }}
          override: true
      - run: rustup component add clippy
      - uses: actions-rs/cargo@v1
        with:
          command: clippy
          args: -- -D warnings

Can I tune it?

Sure!

This workflow is using following Actions to execute the pipeline, see their pages for the available options:

1. actions-rs/toolchain
2. actions-rs/cargo