store vcpkg in cache to reduce runtime performance hit

.github/workflows/ci.yaml

@@ -14,14 +14,25 @@ jobs:
     runs-on: ubuntu-latest
     container: ghcr.io/thepigeongenerator/mcaselector-lite:latest
     steps:
-      - run: git clone https://github.com/microsoft/vcpkg.git "${{env.VCPKG_ROOT}}"
-      - run: ${{env.VCPKG_ROOT}}/bootstrap-vcpkg.sh
-      - name: install vcpkg packages
-        run: ${{env.VCPKG_ROOT}}/vcpkg install glfw3:x64-linux-dynamic glfw3:x64-mingw-static;
-      - uses: actions/upload-artifact@v4
+      - uses: actions/cache@v4
+        id: vcpkg-cache
         with:
-          name: vcpkg
           path: ${{env.VCPKG_ROOT}}
+          key: vcpkg-${{runner.os}}
+          restore-keys: vcpkg-${{runner.os}}
+      - if: steps.vcpkg-cache.outputs.cache-hit != 'true'
+        run: |
+          git clone https://github.com/microsoft/vcpkg.git "$VCPKG_ROOT"
+          $VCPKG_ROOT/bootstrap-vcpkg.sh
+      - if: steps.vcpkg-cache.outputs.cache-hit == 'true'
+        run: |
+          cd "$VCPKG_ROOT"
+          git fetch
+          git checkout master
+          git reset --hard origin/master
+          ./bootstrap-vcpkg.sh
+      - name: install vcpkg packages
+        run: $VCPKG_ROOT/vcpkg install glfw3:x64-linux-dynamic glfw3:x64-mingw-static;
   compile:
     needs: setup-vcpkg
     runs-on: ubuntu-latest
@@ -36,11 +47,11 @@ jobs:
             march: x86_64
             cc: x86_64-w64-mingw32-gcc
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/download-artifact@v4
+      - uses: actions/cache@v4
         with:
-          name: vcpkg
           path: ${{env.VCPKG_ROOT}}
+          key: vcpkg-${{runner.os}}
+      - uses: actions/checkout@v4
       # compile
       - name: compile ${{matrix.march}}-${{matrix.kernel}}
         run: make compile MARCH=${{matrix.march}} KERNEL=${{matrix.kernel}} CC=${{matrix.cc}} -j
@@ -60,14 +71,14 @@ jobs:
             cc: x86_64-linux-gnu-gcc
             # WARN: not testing win-x86_64... Probably a good idea to do that
     steps:
+      - uses: actions/cache@v4
+        with:
+          path: ${{env.VCPKG_ROOT}}
+          key: vcpkg-${{runner.os}}
       - uses: actions/checkout@v4
       - uses: actions/download-artifact@v4
         with:
           name: ${{matrix.march}}-${{matrix.kernel}}-rel
           path: obj/
-      - uses: actions/download-artifact@v4
-        with:
-          name: vcpkg
-          path: ${{env.VCPKG_ROOT}}
       - name: execute tests for ${{matrix.march}}-${{matrix.kernel}}
         run: make DEBUG=test run MARCH=${{matrix.march}} KERNEL=${{matrix.kernel}} CC=${{matrix.cc}} -j