chore(ci): remove Windows support for iggy-server (#1541)

This commit removes Windows support for the server by
introducing a compile-time error for Windows platforms.
The GitHub Actions workflow has been updated to separate
the build and test processes for Linux and Windows,
ensuring that the server is not built on Windows.

This change is needed due to lack of `read_at` support on
windows and upcoming thread per core architecture changes.

.github/workflows/test_pr.yml

@@ -53,28 +53,12 @@ jobs:
 
   build_and_test:
     needs: sanity
-    name: ${{ matrix.platform.skip_tests == true && 'build' || 'build and test' }} ${{ matrix.platform.os_name }}
-    runs-on: ${{ matrix.platform.os }}
+    name: 'build and test Linux-x86_64-musl'
+    runs-on: ubuntu-latest
     timeout-minutes: 45
     strategy:
       fail-fast: false
-      matrix:
-        platform:
-          - os_name: Linux-x86_64-musl
-            os: ubuntu-latest
-            target: x86_64-unknown-linux-musl
-            cargo_command: cargo
-            skip_tests: false
-
-          - os_name: Windows-x86_64
-            os: windows-latest
-            target: x86_64-pc-windows-msvc
-            skip_tests: true
-
-        toolchain:
-          - stable
-          # - nightly
-          # - beta
+
     steps:
       - uses: actions/checkout@v4
 
@@ -88,46 +72,30 @@ jobs:
           sudo apt-get update --yes && sudo apt-get install --yes musl-tools gnome-keyring keyutils
           rm -f $HOME/.local/share/keyrings/*
           echo -n "test" | gnome-keyring-daemon --unlock
-        if: ${{ matrix.platform.os == 'ubuntu-latest' }}
 
       - name: Build binary (Linux)
         uses: houseabsolute/actions-rust-cross@v0
         with:
           command: "build"
-          target: ${{ matrix.platform.target }}
-          toolchain: ${{ matrix.toolchain }}
+          target: x86_64-unknown-linux-musl
+          toolchain: stable
           args: "--verbose"
-        if: ${{ matrix.platform.os == 'ubuntu-latest' }}
-
-      - name: Build binary (Windows)
-        uses: houseabsolute/actions-rust-cross@v0
-        env:
-          AWS_LC_SYS_NO_ASM: 1
-        with:
-          command: "build"
-          target: ${{ matrix.platform.target }}
-          toolchain: ${{ matrix.toolchain }}
-          args: "--verbose"
-        if: ${{ matrix.platform.os == 'windows-latest' }}
 
       - name: Run tests
         uses: houseabsolute/actions-rust-cross@v0
         with:
           command: "test"
-          target: ${{ matrix.platform.target }}
-          toolchain: ${{ matrix.toolchain }}
+          target: x86_64-unknown-linux-musl
+          toolchain: stable
           args: "--verbose"
-        if: ${{ !matrix.platform.skip_tests }}
 
       - name: Check CLI examples from README
         run: ./scripts/run-examples-from-readme.sh
-        if: ${{ matrix.platform.os == 'ubuntu-latest' }}
 
       - name: Check if workspace is clean
         run: git status | grep "working tree clean" || { git status ; exit 1; }
-        if: ${{ matrix.platform.os == 'ubuntu-latest' }}
 
-  # TODO: below job is nonblocking: temporary solution until we decide whether
+  # TODO: below job is non-blocking: temporary solution until we decide whether
   #       we want to use the new M1 macs for CI, determine cost and performance
   build_and_test_macos:
     needs: sanity
@@ -150,12 +118,34 @@ jobs:
       - name: Run tests
         run: cargo test --verbose --target aarch64-apple-darwin
 
+  build_windows:
+    needs: sanity
+    name: build Windows
+    runs-on: windows-latest
+    timeout-minutes: 30
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache cargo & target directories
+        uses: Swatinem/rust-cache@v2
+        with:
+          key: "v2"
+
+      - name: Build iggy package
+        run: cargo build --verbose --target x86_64-pc-windows-msvc -p iggy
+
+      - name: Build iggy-cli binary
+        run: cargo build --verbose --target x86_64-pc-windows-msvc --bin iggy
+
   finalize_pr:
     runs-on: ubuntu-latest
     needs:
       - sanity
       - coverage
       - backwards_compatibility
+      - build_windows
       - build_and_test
     if: always()
     steps:

server/src/lib.rs

@@ -5,6 +5,9 @@ use mimalloc::MiMalloc;
 #[global_allocator]
 static GLOBAL: MiMalloc = MiMalloc;
 
+#[cfg(windows)]
+compile_error!("iggy-server doesn't support windows.");
+
 pub mod archiver;
 pub mod args;
 pub mod binary;