🔨 Cache vcpkg binaries

Author: fredemmott

.github/actions/configure-environment/action.yaml

@@ -0,0 +1,33 @@
+name: 'Configure vcpkg with NuGet Cache'
+description: 'Bootstraps vcpkg and configures NuGet for binary caching'
+inputs:
+  github_token:
+    description: 'GitHub Token for NuGet authentication'
+    required: true
+  arch:
+    description: "Architecture to build for"
+    required: true
+runs:
+  using: "composite"
+  steps:
+    - uses: ilammy/msvc-dev-cmd@0b201ec74fa43914dc39ae48a89fd1d8cb592756
+      with:
+        arch: ${{ inputs.arch }}
+    - name: Bootstrap vcpkg
+      shell: pwsh
+      run: ./third-party/vcpkg/bootstrap-vcpkg.bat
+    - name: Configure vcpkg nuget cache
+      shell: pwsh
+      run: |
+        $nuget_exe = (./third-party/vcpkg/vcpkg fetch nuget)
+        $nuget_feed_url = "https://nuget.pkg.github.com/${{ github.repository_owner }}/index.json"
+        "VCPKG_BINARY_SOURCES=clear;nuget,$nuget_feed_url,readwrite" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
+        
+        & $nuget_exe sources add `
+          -Source "$nuget_feed_url" `
+          -StorePasswordInClearText `
+          -Name GitHubPackages `
+          -UserName "${{ github.repository_owner }}" `
+          -Password "${{ inputs.github_token }}"
+        & $nuget_exe setapikey "${{ inputs.github_token }}" `
+          -Source "$nuget_feed_url"

.github/workflows/build.yml

@@ -10,19 +10,17 @@ jobs:
     name: build/${{matrix.arch}}/${{matrix.preset}}
     runs-on: windows-latest
     steps:
-      - name: Set up visual studio environment
-        uses: ilammy/msvc-dev-cmd@v1
-        with:
-          arch: ${{matrix.arch}}
       - uses: actions/checkout@v6
         with:
           submodules: true
           fetch-depth: 0
+      - name: Setup environment
+        uses: ./.github/actions/configure-environment
+        with:
+          arch: ${{matrix.arch}}
+          github_token: ${{secrets.GITHUB_TOKEN}}
       - name: Make build directory
         run: cmake -E make_directory build
-      - name: "Initialize vcpkg"
-        working-directory: build
-        run: ../third-party/vcpkg/bootstrap-vcpkg.bat
       - name: Configure
         working-directory: build
         id: configure

.github/workflows/ci.yml

@@ -1,7 +1,19 @@
 name: Continuous Integration
 on: [push, pull_request]
+permissions:
+  packages: write
 jobs:
+  populate-vcpkg-cache:
+    name: Populate vcpkg cache
+    uses: ./.github/workflows/populate-vcpkg-cache.yaml
+    secrets: inherit
+    with:
+      arch: ${{matrix.arch}}
+    strategy:
+      matrix:
+        arch: [x86, x64]
   build:
+    needs: populate-vcpkg-cache
     name: Build
     uses: ./.github/workflows/build.yml
     secrets: inherit

.github/workflows/populate-vcpkg-cache.yaml

@@ -0,0 +1,23 @@
+name: Populate vcpkg cache
+on:
+  workflow_call:
+    inputs:
+      arch:
+        required: true
+        type: string
+permissions:
+  packages: write
+jobs:
+  populate:
+    runs-on: windows-2022
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          submodules: true
+          fetch-depth: 0
+      - uses: ./.github/actions/configure-environment
+        with:
+          arch: ${{inputs.arch}}
+          github_token: ${{secrets.GITHUB_TOKEN}}
+      - name: Cache vcpkg artifacts
+        run: third-party/vcpkg/vcpkg install --triplet ${{inputs.arch}}-windows-static