relativedelta 0.3.2

Complex date arithmetic: add/subtract months and years without errors, target weekdays, lock dates. Better than Duration for semantic calendar operations.
Documentation 
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name: Check, Lint & Test

on:
  push:
    branches:
      - master
    tags:
      - 'v*' # Match version tags
  pull_request:
    branches:
      - master
  workflow_dispatch:

permissions:
  contents: read
  pages: write
  id-token: write

jobs:
  extract-msrv:
    name: Extract MSRV
    runs-on: ubuntu-latest
    outputs:
      msrv: ${{ steps.msrv.outputs.version }}
    steps:
      - uses: actions/checkout@v4
      - id: msrv
        run: |
          MSRV=$(grep '^rust-version' Cargo.toml | grep -oP '\d+\.\d+\.\d+')
          echo "version=$MSRV" >> $GITHUB_OUTPUT

  rustfmt:
    name: Format Check
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@nightly
        with:
          components: rustfmt
      - name: Run Rustfmt
        run: cargo fmt --check

  clippy:
    name: Clippy Lint
    runs-on: ubuntu-latest
    strategy:
      matrix:
        feature: [ chrono, time, "\"chrono time\"", serde, std ]
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@stable
        with:
          components: clippy
      - name: Run Clippy
        run: cargo clippy --features ${{ matrix.feature }}
      - name: Run Clippy with --all-features
        run: cargo clippy --all-features

  check:
    name: Cargo Check
    runs-on: ubuntu-latest
    strategy:
      matrix:
        feature: [ chrono, time, "\"chrono time\"", serde, std ]
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@stable
      - name: Run Cargo Check
        run: cargo check --features ${{ matrix.feature }}
      - name: Run Cargo Check with --all-features
        run: cargo check --all-features

  test:
    name: Cargo Test
    needs: extract-msrv
    runs-on: ubuntu-latest
    strategy:
      matrix:
        feature: [ chrono, time, "\"chrono time\"", serde, std ]
        rust:
          - ${{ needs.extract-msrv.outputs.msrv }}
          - stable
          - nightly
      fail-fast: false
    steps:
      - uses: actions/checkout@v4
      - name: Install Rust ${{ matrix.rust }}
        uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ matrix.rust }}
      - name: Cache dependencies
        uses: actions/cache@v3
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: ${{ runner.os }}-cargo-${{ matrix.rust }}-${{ hashFiles('**/Cargo.lock') }}
      - name: Build
        run: cargo build --verbose
      - name: Run Tests
        run: cargo test --features ${{ matrix.feature }}
      - name: Run Tests with --all-features
        run: cargo test --all-features

  audit:
    name: Audit
    runs-on: ubuntu-latest
    timeout-minutes: 10
    permissions:
      issues: write
      checks: write
    steps:
      - uses: actions/checkout@v4
        # Needed for audit-check@v2
      - name: generate Cargo.lock
        run: cargo generate-lockfile
      - uses: rustsec/audit-check@v2
        with:
          token: ${{ secrets.GITHUB_TOKEN }}