Prepare release workflow (#40)

.github/workflows/ci.yml

@@ -3,7 +3,8 @@ name: lint, format, test, build
 on:
   push:
     branches: [ main ]
-  pull_request:
+  # ignore for now
+  # pull_request:
 
 jobs:
 

.github/workflows/release.yml

@@ -0,0 +1,104 @@
+name: release
+
+on:
+  push:
+    branches:
+      - "release/**"
+    tags:
+      - "v*"
+
+jobs:
+  get-version:
+    name: Get version
+    runs-on: ubuntu-latest
+    outputs:
+      version: ${{ steps.version.outputs.version }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Get version from Cargo.toml
+        id: version
+        run: |
+          VERSION=$(grep '^version =' Cargo.toml | cut -d '"' -f2)
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+
+  build:
+    name: Build ${{ matrix.os_target }} on ${{ matrix.os }}
+    needs: get-version
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        include:
+          - os: ubuntu-latest
+            os_target: linux
+            binary_name: timr-tui
+            arch: x86_64 # `x86_64` by default
+          - os: ubuntu-latest
+            os_target: windows
+            binary_name: timr-tui.exe
+            arch: x86_64 # based on target 'x86_64-pc-windows-gnu' defined by `CARGO_BUILD_TARGET` in flake.nix
+          - os: macOS-latest
+            os_target: macos
+            binary_name: timr-tui
+            arch: x86_64 # `x86_64` by default
+    steps:
+      - uses: actions/checkout@v4
+      - uses: DeterminateSystems/nix-installer-action@main
+      - uses: DeterminateSystems/magic-nix-cache-action@main
+
+      - name: Build (windows)
+        if: matrix.os_target == 'windows'
+        run: nix build .#windows
+
+      - name: Build (linux/macos)
+        if: matrix.os_target != 'windows'
+        run: nix build
+
+      - name: Copy artifact
+        run: |
+          mkdir artifacts
+          cp result/bin/${{ matrix.binary_name }} artifacts/
+
+      - name: Install zip
+        if: matrix.os_target == 'windows'
+        run: sudo apt-get install -y zip
+
+      - name: Archive (windows)
+        if: matrix.os_target == 'windows'
+        run: |
+          cd artifacts
+          zip ${{ matrix.binary_name }}-${{ needs.get-version.outputs.version }}-${{ matrix.os_target }}_${{ matrix.arch }}.zip ${{ matrix.binary_name }}
+
+      - name: Archive (linux/macos)
+        if: matrix.os_target != 'windows'
+        run: |
+          cd artifacts
+          tar -czf ${{ matrix.binary_name }}-${{ needs.get-version.outputs.version }}-${{ matrix.os_target }}_${{ matrix.arch }}.tar.gz ${{ matrix.binary_name }}
+
+      - name: Upload archive
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ matrix.os_target }}-build
+          path: |
+            artifacts/*.tar.gz
+            artifacts/*.zip
+          overwrite: true
+
+  create-release:
+    name: Create draft release
+    needs: [get-version, build]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download all artifacts
+        uses: actions/download-artifact@v4
+        with:
+          path: artifacts
+          merge-multiple: true
+
+      - name: Create draft release
+        uses: softprops/action-gh-release@v2
+        with:
+          draft: true
+          tag_name: "v${{ needs.get-version.outputs.version }}"
+          name: "v${{ needs.get-version.outputs.version }}"
+          body: Draft release generated by CI.
+          files: artifacts/**/*