add PR and publishing CI config

.github/workflows/ci.yml

@@ -0,0 +1,73 @@
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches:
+      - main
+
+name: CI
+
+jobs:
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    env:
+      RUSTFLAGS: -D warnings
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          # By default actions/checkout checks out a merge commit. Check out the PR head instead.
+          # https://github.com/actions/checkout#checkout-pull-request-head-commit-instead-of-merge-commit
+          ref: ${{ github.event.pull_request.head.sha }}
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          override: true
+          components: rustfmt, clippy
+      - uses: Swatinem/rust-cache@c5ed9ba6b7e1bb8aff90d43acd2f0af4990fa57c
+      - name: Lint (clippy)
+        uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: --all-features --all-targets
+      - name: Lint (rustfmt)
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --check
+      - name: Check semver
+        uses: obi1kenobi/cargo-semver-checks-action@v2
+
+  build:
+    name: Build and test
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os:
+          - ubuntu-latest
+          - macos-latest
+          - windows-latest
+        rust-version: [ stable ]
+      fail-fast: false
+    env:
+      RUSTFLAGS: -D warnings
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.rust-version }}
+          override: true
+      - name: Build all targets with all features
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --all-targets --all-features
+      - name: Install latest nextest release
+        uses: taiki-e/install-action@nextest
+      - name: Test with latest nextest release
+        uses: actions-rs/cargo@v1
+        with:
+          command: nextest
+          args: run --all-features

.github/workflows/publish.yml

@@ -0,0 +1,81 @@
+name: publish
+on:
+  push:
+    tags:
+    - "v*"
+env:
+jobs:
+  build_and_test_linux:
+    name: Build and Test (Linux)
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+
+      - uses: taiki-e/install-action@nextest
+      - name: 'Build and test'
+        run: cargo nextest run --workspace --all-features
+
+  publish_gh_release:
+    name: Publish GH release
+    runs-on: ubuntu-latest
+    outputs:
+      upload_url: ${{ steps.release.outputs.upload_url }}
+      release_version: ${{ env.RELEASE_VERSION }}
+    steps:
+    - name: Get the release version from the tag
+      shell: bash
+      if: env.RELEASE_VERSION == ''
+      run: |
+        # See: https://github.community/t5/GitHub-Actions/How-to-get-just-the-tag-name/m-p/32167/highlight/true#M1027
+        echo "RELEASE_VERSION=${GITHUB_REF#refs/tags/}" >> $GITHUB_ENV
+        echo "version is: ${{ env.RELEASE_VERSION }}"
+    - name: Checkout repository
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 1
+    - name: Create GitHub release
+      id: release
+      uses: actions/create-release@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        tag_name: ${{ env.RELEASE_VERSION }}
+        release_name: ${{ env.RELEASE_VERSION }}
+
+  crates_io_publish:
+    name: Publish (crates.io)
+    needs:
+      - build_and_test_linux
+
+    runs-on: ubuntu-latest
+    timeout-minutes: 25
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+
+      - name: cargo-release Cache
+        id: cargo_release_cache
+        uses: actions/cache@v4
+        with:
+          path: ~/.cargo/bin/cargo-release
+          key: ${{ runner.os }}-cargo-release
+
+      - run: cargo install cargo-release
+        if: steps.cargo_release_cache.outputs.cache-hit != 'true'
+
+      - name: cargo login
+        run: cargo login ${{ secrets.CRATES_IO_API_TOKEN }}
+
+      # allow-branch HEAD is because GitHub actions switches
+      # to the tag while building, which is a detached head
+      - name: "cargo release publish"
+        run: |-
+          cargo release \
+            publish \
+            --workspace \
+            --all-features \
+            --allow-branch HEAD \
+            --no-confirm \
+            --execute

README.md

@@ -1,5 +1,8 @@
 # smooth-operator
 
+[![Crates.io](https://img.shields.io/crates/v/smooth-operator.svg)](https://crates.io/crates/smooth-operator)
+[![Documentation](https://docs.rs/smooth-operator/badge.svg)](https://docs.rs/smooth-operator)
+
 Procedural macro that transforms regular infix arithmetic expressions into
 checked arithmetic expressions.