add Windows CI

Author: usamoi

.github/workflows/tests.yml

@@ -579,3 +579,76 @@ jobs:
 
       - name: Stop sccache server
         run: sccache --stop-server || true
+
+  build_windows:
+    name: Windows build & test
+    needs: lintck
+    runs-on: ${{ matrix.os }}
+    if: "!contains(github.event.head_commit.message, 'nogha')"
+    env:
+      RUSTC_WRAPPER: sccache
+      SCCACHE_DIR: C:\Users\runneradmin\sccache
+      SCCACHE_IDLE_TIMEOUT: 0
+      PG_VER: ${{ matrix.postgresql }}
+
+    strategy:
+      matrix:
+        os: [ "windows-2022" ]
+        postgresql: [ 13, 17 ]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up prerequisites and environment
+        run: |
+          Write-Output ""
+
+          echo "----- Install sccache -----"
+          Invoke-WebRequest -Uri "https://github.com/mozilla/sccache/releases/download/v0.5.4/sccache-v0.5.4-x86_64-pc-windows-msvc.tar.gz" -OutFile "sccache.tar.gz"
+          tar -xzvf sccache.tar.gz
+          Move-Item -Force "sccache-v0.5.4-x86_64-pc-windows-msvc\sccache.exe" -Destination "C:\Windows\System32"
+          New-Item -ItemType Directory -Force -Path $env:SCCACHE_DIR | Out-Null
+          sccache --version
+
+          Write-Output "----- Outputting env -----"
+          Get-ChildItem Env:
+          Write-Output ""
+
+
+      - name: Cache sccache directory
+        uses: actions/cache@v4
+        continue-on-error: false
+        with:
+          path: C:\Users\runneradmin\sccache
+          key: pgrx-sccache-${{matrix.os}}-${{ hashFiles('**/Cargo.lock', '.github/workflows/tests.yml', '.cargo/config.toml') }}
+
+      - name: Cache cargo directory
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo
+          key: pgrx-cargo-${{matrix.os}}-tests-${{ hashFiles('**/Cargo.lock', '.github/workflows/tests.yml', '.cargo/config.toml') }}
+
+      - name: Start sccache server
+        run: sccache --start-server
+
+      - name: Print sccache stats
+        run: sccache --show-stats
+
+      - name: Install cargo-pgrx
+        run: cargo install --path cargo-pgrx/ --debug --force
+
+      - name: Print sccache stats
+        run: sccache --show-stats
+
+      - name: Run 'cargo pgrx init'
+        run: cargo pgrx init --pg$env:PG_VER=download
+
+      - name: Run tests
+        run: cargo test --all --no-default-features --features "pg$env:PG_VER pg_test cshim proptest" --all-targets
+
+      - name: Print sccache stats
+        run: sccache --show-stats
+
+      - name: Stop sccache server
+        run: sccache --stop-server || true