Add GitHub actions

.github/ci/macos-install-packages

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+brew install asciidoctor
+
+brew install openssl@1.1
+cp /usr/local/opt/openssl@1.1/lib/pkgconfig/*.pc /usr/local/lib/pkgconfig/

.github/ci/ubuntu-install-packages

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+sudo apt-get update
+sudo apt-get install -y --no-install-recommends \
+  asciidoctor \
+  zsh xz-utils liblz4-tool musl-tools libssl-dev openssl pkg-config

.github/workflows/build.yml

@@ -0,0 +1,104 @@
+on: [push, pull_request]
+
+name: Build
+
+jobs:
+  check:
+    name: Check
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - stable
+          - 1.55.0
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v2
+
+      - name: Install toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.rust }}
+          override: true
+
+      - name: Run cargo check
+        uses: actions-rs/cargo@v1
+        with:
+          command: check
+
+  test:
+    name: Test Suite
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - stable
+          - 1.55.0
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v2
+
+      - name: Install toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.rust }}
+          override: true
+
+      - name: Run cargo test
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+
+  fmt:
+    name: Rustfmt
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - stable
+          - 1.55.0
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v2
+
+      - name: Install toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.rust }}
+          override: true
+
+      - name: Install rustfmt
+        run: rustup component add rustfmt
+
+      - name: Run cargo fmt
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check
+
+  clippy:
+    name: Clippy
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - stable
+          - 1.55.0
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v2
+
+      - name: Install toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.rust }}
+          override: true
+
+      - name: Install clippy
+        run: rustup component add clippy
+
+      - name: Run cargo clippy
+        uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: -- -D warnings

.github/workflows/release.yml

@@ -0,0 +1,122 @@
+name: release
+on:
+  push:
+    tags:
+      - 'v[0-9]+.[0-9]+.[0-9]+'
+jobs:
+  create-release:
+    name: create-release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Create artifacts directory
+        run: mkdir artifacts
+
+      - name: Get the release version from the tag
+        if: env.VERSION == ''
+        run: |
+          echo "VERSION=${GITHUB_REF#refs/tags/}" >> $GITHUB_ENV
+          echo "version is: ${{ env.VERSION }}"
+      - name: Create GitHub release
+        id: release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ env.VERSION }}
+          release_name: ${{ env.VERSION }}
+
+      - name: Save release upload URL to artifact
+        run: echo "${{ steps.release.outputs.upload_url }}" > artifacts/release-upload-url
+
+      - name: Save version number to artifact
+        run: echo "${{ env.VERSION }}" > artifacts/release-version
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v1
+        with:
+          name: artifacts
+          path: artifacts
+
+  build-release:
+    name: build-release
+    needs: [ 'create-release' ]
+    runs-on: ${{ matrix.os }}
+    env:
+      # Emit backtraces on panics.
+      RUST_BACKTRACE: 1
+    strategy:
+      matrix:
+        build: [ linux-amd64, macos-intel, windows ]
+        include:
+          - build: linux-amd64
+            os: ubuntu-18.04
+            rust: stable
+            target: x86_64-unknown-linux-musl
+          - build: macos-intel
+            os: macos-latest
+            rust: stable
+            target: x86_64-apple-darwin
+          - build: windows
+            os: windows-2019
+            rust: stable
+            target: x86_64-pc-windows-msvc
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 1
+
+      - name: Install packages (Ubuntu)
+        if: matrix.os == 'ubuntu-18.04'
+        run: |
+          .github/ci/ubuntu-install-packages
+      - name: Install packages (macOS)
+        if: matrix.os == 'macos-latest'
+        run: |
+          .github/ci/macos-install-packages
+      - name: Install Rust
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.rust }}
+          profile: minimal
+          override: true
+          target: ${{ matrix.target }}
+
+      - name: Get release download URL
+        uses: actions/download-artifact@v1
+        with:
+          name: artifacts
+          path: artifacts
+
+      - name: Set release upload URL
+        shell: bash
+        run: |
+          release_upload_url="$(cat artifacts/release-upload-url)"
+          echo "RELEASE_UPLOAD_URL=$release_upload_url" >> $GITHUB_ENV
+          echo "release upload url: $release_upload_url"
+
+      - name: Build onetun binary
+        run: cargo build --release
+
+      - name: Prepare onetun binary
+        shell: bash
+        run: |
+          mkdir -p ci/assets
+          if [ "${{ matrix.build }}" = "windows" ]; then
+            cp "target/release/onetun.exe" "ci/assets/onetun.exe"
+            echo "ASSET=onetun.exe" >> $GITHUB_ENV
+          else
+            cp "target/release/onetun" "ci/assets/onetun-${{ matrix.build }}"
+            echo "ASSET=onetun-${{ matrix.build }}" >> $GITHUB_ENV
+          fi
+
+      - name: Upload release archive
+        uses: actions/upload-release-asset@v1.0.1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ env.RELEASE_UPLOAD_URL }}
+          asset_path: ci/assets/${{ env.ASSET }}
+          asset_name: ${{ env.ASSET }}
+          asset_content_type: application/octet-stream