use cp

This reverts commit c42cb0df62.

.github/actions/xahau-ga-build/action.yml

@@ -28,6 +28,10 @@ inputs:
     description: 'Cache version for invalidation'
     required: false
     default: '1'
+  gha_cache_enabled:
+    description: 'Whether to use actions/cache (disable for self-hosted with volume mounts)'
+    required: false
+    default: 'true'
   ccache_enabled:
     description: 'Whether to use ccache'
     required: false
@@ -72,7 +76,7 @@ runs:
         echo "name=${SAFE_BRANCH}" >> $GITHUB_OUTPUT
 
     - name: Restore ccache directory for main branch
-      if: inputs.ccache_enabled == 'true'
+      if: inputs.gha_cache_enabled == 'true' && inputs.ccache_enabled == 'true'
       id: ccache-restore
       uses: ./.github/actions/xahau-ga-cache-restore
       with:
@@ -84,7 +88,7 @@ runs:
         cache-type: ccache-main
 
     - name: Restore ccache directory for current branch
-      if: inputs.ccache_enabled == 'true' && steps.safe-branch.outputs.name != inputs.main_branch
+      if: inputs.gha_cache_enabled == 'true' && inputs.ccache_enabled == 'true' && steps.safe-branch.outputs.name != inputs.main_branch
       id: ccache-restore-current-branch
       uses: ./.github/actions/xahau-ga-cache-restore
       with:
@@ -103,6 +107,11 @@ runs:
         # Create cache directories
         mkdir -p ~/.ccache-main ~/.ccache-current
 
+        # Keep config separate from cache_dir so configs aren't swapped when CCACHE_DIR changes between steps
+        mkdir -p ~/.config/ccache
+        export CCACHE_CONFIGPATH="$HOME/.config/ccache/ccache.conf"
+        echo "CCACHE_CONFIGPATH=$CCACHE_CONFIGPATH" >> $GITHUB_ENV
+
         # Configure ccache settings AFTER cache restore (prevents stale cached config)
         ccache --set-config=max_size=${{ inputs.ccache_max_size }}
         ccache --set-config=hash_dir=${{ inputs.ccache_hash_dir }}
@@ -237,14 +246,14 @@ runs:
       run: ccache -s
 
     - name: Save ccache directory for main branch
-      if: success() && inputs.ccache_enabled == 'true' && steps.safe-branch.outputs.name == inputs.main_branch
+      if: success() && inputs.gha_cache_enabled == 'true' && inputs.ccache_enabled == 'true' && steps.safe-branch.outputs.name == inputs.main_branch
       uses: actions/cache/save@v4
       with:
         path: ~/.ccache-main
         key: ${{ steps.ccache-restore.outputs.cache-primary-key }}
 
     - name: Save ccache directory for current branch
-      if: success() && inputs.ccache_enabled == 'true' && steps.safe-branch.outputs.name != inputs.main_branch
+      if: success() && inputs.gha_cache_enabled == 'true' && inputs.ccache_enabled == 'true' && steps.safe-branch.outputs.name != inputs.main_branch
       uses: actions/cache/save@v4
       with:
         path: ~/.ccache-current

.github/actions/xahau-ga-dependencies/action.yml

@@ -17,8 +17,8 @@ inputs:
     description: 'Cache version for invalidation'
     required: false
     default: '1'
-  cache_enabled:
-    description: 'Whether to use caching'
+  gha_cache_enabled:
+    description: 'Whether to use actions/cache (disable for self-hosted with volume mounts)'
     required: false
     default: 'true'
   main_branch:
@@ -64,7 +64,7 @@ runs:
   using: 'composite'
   steps:
     - name: Restore Conan cache
-      if: inputs.cache_enabled == 'true'
+      if: inputs.gha_cache_enabled == 'true'
       id: cache-restore-conan
       uses: ./.github/actions/xahau-ga-cache-restore
       with:
@@ -76,6 +76,17 @@ runs:
           ${{ runner.os }}-conan-v${{ inputs.cache_version }}-${{ inputs.compiler-id }}-
         cache-type: Conan
 
+    - name: Configure Conan cache paths
+      if: inputs.gha_cache_enabled == 'false'
+      shell: bash
+      # For self-hosted runners, register cache paths to be used as volumes
+      # This allows the cache to be shared between containers
+      run: |
+        mkdir -p /.conan-cache/conan2 /.conan-cache/conan2_download /.conan-cache/conan2_sources
+        echo 'core.cache:storage_path=/.conan-cache/conan2' > ~/.conan2/global.conf
+        echo 'core.download:download_cache=/.conan-cache/conan2_download' >> ~/.conan2/global.conf
+        echo 'core.sources:download_cache=/.conan-cache/conan2_sources' >> ~/.conan2/global.conf
+
     - name: Configure Conan
       shell: bash
       run: |
@@ -152,7 +163,7 @@ runs:
           ..
 
     - name: Save Conan cache
-      if: success() && inputs.cache_enabled == 'true' && steps.cache-restore-conan.outputs.cache-hit != 'true'
+      if: success() && inputs.gha_cache_enabled == 'true' && steps.cache-restore-conan.outputs.cache-hit != 'true'
       uses: actions/cache/save@v4
       with:
         path: ~/.conan2

.github/workflows/build-in-docker.yml

@@ -33,7 +33,7 @@ jobs:
           fetch-depth: 2 # Only get the last 2 commits, to avoid fetching all history
 
   build:
-    runs-on: [self-hosted, vanity]
+    runs-on: [self-hosted, xahaud-build]
     needs: [checkout]
     defaults:
       run:
@@ -74,7 +74,7 @@ jobs:
           fi
 
   tests:
-    runs-on: [self-hosted, vanity]
+    runs-on: [self-hosted, xahaud-build]
     needs: [build, checkout]
     defaults:
       run:
@@ -84,7 +84,7 @@ jobs:
         run: /bin/bash docker-unit-tests.sh
 
   cleanup:
-    runs-on: [self-hosted, vanity]
+    runs-on: [self-hosted, xahaud-build]
     needs: [tests, checkout]
     if: always()
     steps:

.github/workflows/xahau-ga-macos.yml

@@ -20,7 +20,7 @@ jobs:
           - Ninja
         configuration:
           - Debug
-    runs-on: macos-15-xlarge
+    runs-on: macos-15
     env:
       build_dir: .build
       # Bump this number to invalidate all caches globally.

.github/workflows/xahau-ga-nix.yml

@@ -14,11 +14,19 @@ concurrency:
 
 jobs:
   matrix-setup:
-    runs-on: ubuntu-latest
+    runs-on: [self-hosted, generic, 20.04]
     container: python:3-slim
     outputs:
       matrix: ${{ steps.set-matrix.outputs.matrix }}
     steps:
+      - name: escape double quotes
+        id: escape
+        shell: bash
+        env:
+          PR_TITLE: ${{ github.event.pull_request.title }}
+        run: |
+          ESCAPED_PR_TITLE="${PR_TITLE//\"/\\\"}"
+          echo "title=${ESCAPED_PR_TITLE}" >> "$GITHUB_OUTPUT"
       - name: Generate build matrix
         id: set-matrix
         shell: python
@@ -102,7 +110,7 @@ jobs:
           ref = "${{ github.ref }}"
           base_ref = "${{ github.base_ref }}"  # For PRs, this is the target branch
           event_name = "${{ github.event_name }}"
-          pr_title = """${{ github.event.pull_request.title }}"""
+          pr_title = """${{ steps.escape.outputs.title }}"""
           pr_head_sha = "${{ github.event.pull_request.head.sha }}"
 
           # Get commit message - for PRs, fetch via API since head_commit.message is empty
@@ -166,9 +174,35 @@ jobs:
           with open(os.environ['GITHUB_OUTPUT'], 'a') as f:
               f.write(f"matrix={output}\n")
 
+  apt-cache:
+    runs-on: [self-hosted, generic, 20.04]
+    container:
+      image: ubuntu:24.04
+      volumes:
+        - /home/runner/.apt-cache:/var/cache/apt
+    steps:
+      - name: Install build dependencies to save apt cache
+        run: |
+          apt-get update
+          apt-get install -y software-properties-common
+          add-apt-repository ppa:ubuntu-toolchain-r/test -y
+          apt-get update
+          apt-get install -y python3 python-is-python3 pipx cmake ninja-build ccache perl libsqlite3-dev
+
   build:
-    needs: matrix-setup
-    runs-on: ubuntu-latest
+    needs: [matrix-setup, apt-cache]
+    runs-on: [self-hosted, generic, 20.04]
+    container:
+      image: ubuntu:24.04
+      volumes:
+        - /home/runner/.conan-cache:/.conan-cache
+        - /home/runner/.ccache-main:/github/home/.ccache-main
+        - /home/runner/.ccache-current:/github/home/.ccache-current
+        # apt cache as readonly
+        - /home/runner/.apt-cache:/apt-cache-ro:ro
+    defaults:
+      run:
+        shell: bash
     outputs:
       artifact_name: ${{ steps.set-artifact-name.outputs.artifact_name }}
     strategy:
@@ -183,23 +217,32 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Get commit message
-        id: get-commit-message
-        uses: ./.github/actions/xahau-ga-get-commit-message
-        with:
-          event-name: ${{ github.event_name }}
-          head-commit-message: ${{ github.event.head_commit.message }}
-          pr-head-sha: ${{ github.event.pull_request.head.sha }}
+      - name: Seed apt cache
+        run: |
+          # prepare apt cache directory
+          mkdir -p /var/cache/apt/archives
+
+          # copy existing .deb files from apt cache
+          mkdir -p /var/cache/apt/archives
+          cp -a /apt-cache-ro/archives/. /var/cache/apt/archives/
 
       - name: Install build dependencies
         run: |
-          sudo apt-get update
-          sudo apt-get install -y ninja-build ${{ matrix.cc }} ${{ matrix.cxx }} ccache
+          # install dependencies from apt cache
+          apt-get update
+          apt-get install -y software-properties-common
+          add-apt-repository ppa:ubuntu-toolchain-r/test -y
+          apt-get update
+          apt-get install -y python3 python-is-python3 pipx
+          pipx ensurepath
+          apt-get install -y cmake ninja-build ${{ matrix.cc }} ${{ matrix.cxx }} ccache
+          apt-get install -y perl # for openssl build
+          apt-get install -y libsqlite3-dev # for xahaud build
 
           # Install the specific GCC version needed for Clang
           if [ -n "${{ matrix.clang_gcc_toolchain }}" ]; then
             echo "=== Installing GCC ${{ matrix.clang_gcc_toolchain }} for Clang ==="
-            sudo apt-get install -y gcc-${{ matrix.clang_gcc_toolchain }} g++-${{ matrix.clang_gcc_toolchain }} libstdc++-${{ matrix.clang_gcc_toolchain }}-dev
+            apt-get install -y gcc-${{ matrix.clang_gcc_toolchain }} g++-${{ matrix.clang_gcc_toolchain }} libstdc++-${{ matrix.clang_gcc_toolchain }}-dev
 
             echo "=== GCC versions available after installation ==="
             ls -la /usr/lib/gcc/x86_64-linux-gnu/ | grep -E "^d"
@@ -230,7 +273,7 @@ jobs:
                   echo "Hiding GCC $version -> renaming to $counter (will be seen as GCC version $counter)"
                   # Safety check: ensure target doesn't already exist
                   if [ ! -e "/usr/lib/gcc/x86_64-linux-gnu/$counter" ]; then
-                    sudo mv "$dir" "/usr/lib/gcc/x86_64-linux-gnu/$counter"
+                    mv "$dir" "/usr/lib/gcc/x86_64-linux-gnu/$counter"
                   else
                     echo "ERROR: Cannot rename GCC $version - /usr/lib/gcc/x86_64-linux-gnu/$counter already exists"
                     exit 1
@@ -254,11 +297,12 @@ jobs:
 
           # Install libc++ dev packages if using libc++ (not needed for libstdc++)
           if [ "${{ matrix.stdlib }}" = "libcxx" ]; then
-            sudo apt-get install -y libc++-${{ matrix.compiler_version }}-dev libc++abi-${{ matrix.compiler_version }}-dev
+            apt-get install -y libc++-${{ matrix.compiler_version }}-dev libc++abi-${{ matrix.compiler_version }}-dev
           fi
 
           # Install Conan 2
-          pip install --upgrade "conan>=2.0,<3"
+          pipx install "conan>=2.0,<3"
+          echo "$HOME/.local/bin" >> $GITHUB_PATH
 
       - name: Check environment
         run: |
@@ -272,6 +316,14 @@ jobs:
           echo "---- Full Environment ----"
           env
 
+      - name: Get commit message
+        id: get-commit-message
+        uses: ./.github/actions/xahau-ga-get-commit-message
+        with:
+          event-name: ${{ github.event_name }}
+          head-commit-message: ${{ github.event.head_commit.message }}
+          pr-head-sha: ${{ github.event.pull_request.head.sha }}
+
       - name: Install dependencies
         uses: ./.github/actions/xahau-ga-dependencies
         with:
@@ -285,6 +337,7 @@ jobs:
           cc: ${{ matrix.cc }}
           cxx: ${{ matrix.cxx }}
           stdlib: ${{ matrix.stdlib }}
+          gha_cache_enabled: 'false' # Disable caching for self hosted runner
 
       - name: Build
         uses: ./.github/actions/xahau-ga-build
@@ -299,6 +352,8 @@ jobs:
           main_branch: ${{ env.MAIN_BRANCH_NAME }}
           stdlib: ${{ matrix.stdlib }}
           clang_gcc_toolchain: ${{ matrix.clang_gcc_toolchain || '' }}
+          gha_cache_enabled: 'false' # Disable caching for self hosted runner
+          ccache_max_size: '100G'
 
       - name: Set artifact name
         id: set-artifact-name