windows: upload vcpkg logs

Author: igagis

.github/workflows/ci.yml

@@ -114,14 +114,18 @@ jobs:
     name: windows
     steps:
     - name: git clone
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         submodules: true #  non-recursive, no remote
     - name: set VCPKG_ROOT
       uses: myci-actions/export-env-var-powershell@main
       # accorging to github actions windows image docs, it should define VCPKG_INSTALLATION_ROOT env var,
       # but on practice it is not set, so specify vcpkg root path explicitly
       with: {name: VCPKG_ROOT, value: "C:/vcpkg/"}
+    - name: make local symbolic link to VCPKG installation directory
+      # this is needed at least for actions/upload-artifact to be able to find vcpkg install logs
+      shell: powershell
+      run: New-Item -ItemType SymbolicLink -Path vcpkg-installation -Target $env:VCPKG_ROOT
     - name: generate cmake build files
       run: |
         cmake build/cmake --preset native -A ${{ matrix.arch }}
@@ -133,6 +137,13 @@ jobs:
       run: |
         cd build/cmake
         cmake --build --preset ${{ matrix.config }} --target test
+    - name: upload vcpkg logs to artifacts
+      if: always() # even if previous steps fail, this one needs to be run
+      uses: actions/upload-artifact@v4
+      with:
+        name: windows_${{ matrix.arch }}_${{ matrix.config }}_logs
+        path: |
+          vcpkg-installation/buildtrees/
 ##### ios #####
   ios:
     runs-on: macos-latest