Fix Windows CI (RustPython#5168)

* pin openssl version for windows CI

* use cargo vcpkg

* install openssl with vcpkg

* use Swatinem/rust-cache right after dtolnay/rust-toolchain

* cargo install --target-dir=target cargo-vcpkg
---------

Co-authored-by: Dmitry Erlikh <d.erlikh@smartrecruiters.com>

Author: derlih

.github/workflows/ci.yaml

@@ -123,22 +123,18 @@ jobs:
       - uses: dtolnay/rust-toolchain@stable
         with:
           components: clippy
+      - uses: Swatinem/rust-cache@v2
+
       - name: Set up the Windows environment
         shell: bash
         run: |
-          choco install llvm openssl --no-progress
-          if [[ -d "C:\Program Files\OpenSSL-Win64" ]]; then
-            echo "OPENSSL_DIR=C:\Program Files\OpenSSL-Win64" >> $GITHUB_ENV
-          else
-            echo "OPENSSL_DIR=C:\Program Files\OpenSSL" >> $GITHUB_ENV
-          fi
+          cargo install --target-dir=target -v cargo-vcpkg
+          cargo vcpkg -v build
         if: runner.os == 'Windows'
       - name: Set up the Mac environment
         run: brew install autoconf automake libtool
         if: runner.os == 'macOS'
 
-      - uses: Swatinem/rust-cache@v2
-
       - name: run clippy
         run: cargo clippy ${{ env.CARGO_ARGS }} --workspace  --exclude rustpython_wasm -- -Dwarnings
 
@@ -249,24 +245,20 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
       - uses: actions/setup-python@v4
         with:
           python-version: ${{ env.PYTHON_VERSION }}
       - name: Set up the Windows environment
         shell: bash
         run: |
-          choco install llvm openssl --no-progress
-          if [[ -d "C:\Program Files\OpenSSL-Win64" ]]; then
-            echo "OPENSSL_DIR=C:\Program Files\OpenSSL-Win64" >> $GITHUB_ENV
-          else
-            echo "OPENSSL_DIR=C:\Program Files\OpenSSL" >> $GITHUB_ENV
-          fi
+          cargo install cargo-vcpkg
+          cargo vcpkg build
         if: runner.os == 'Windows'
       - name: Set up the Mac environment
         run: brew install autoconf automake libtool openssl@3
         if: runner.os == 'macOS'
 
-      - uses: Swatinem/rust-cache@v2
       - name: build rustpython
         run: cargo build --release --verbose --features=threading ${{ env.CARGO_ARGS }}
       - uses: actions/setup-python@v4

Cargo.toml

@@ -151,3 +151,13 @@ lto = "thin"
 [patch.crates-io]
 # REDOX START, Uncomment when you want to compile/check with redoxer
 # REDOX END
+
+# Used only on Windows to build the vcpkg dependencies
+[package.metadata.vcpkg]
+git = "https://github.com/microsoft/vcpkg"
+# The revision of the vcpkg repository to use
+# https://github.com/microsoft/vcpkg/tags
+rev = "2024.02.14"
+
+[package.metadata.vcpkg.target]
+x86_64-pc-windows-msvc = { triplet = "x64-windows-static-md", dev-dependencies = ["openssl" ] }