another try

Author: MungoG

.github/workflows/ci.yml

@@ -416,17 +416,23 @@ jobs:
         id: vcpkg-paths-linux
         shell: bash
         run: |
-          # Find vcpkg installed directory (lukka action uses a UUID-based path)
-          # Use GITHUB_WORKSPACE env var which resolves correctly in containers
-          vcpkg_installed=$(find "${GITHUB_WORKSPACE}" -type d -path "*/vcpkg_installed/x64-linux" 2>/dev/null | head -1)
+          # lukka/run-vcpkg sets VCPKG_INSTALLED_DIR with a UUID-based path
+          # Use that directly instead of trying to find it
+          echo "Debug: VCPKG_INSTALLED_DIR=${VCPKG_INSTALLED_DIR:-not set}"
           
-          # Also try container path if not found
-          if [ -z "${vcpkg_installed}" ]; then
-            vcpkg_installed=$(find "/__w" -type d -path "*/vcpkg_installed/x64-linux" 2>/dev/null | head -1)
+          if [ -n "${VCPKG_INSTALLED_DIR}" ] && [ -d "${VCPKG_INSTALLED_DIR}/x64-linux" ]; then
+            vcpkg_installed="${VCPKG_INSTALLED_DIR}/x64-linux"
+          else
+            # Fallback: try to find it
+            vcpkg_installed=$(find "${GITHUB_WORKSPACE}" -type d -path "*/vcpkg_installed/x64-linux" 2>/dev/null | head -1)
+            if [ -z "${vcpkg_installed}" ]; then
+              vcpkg_installed=$(find "/__w" -type d -path "*/vcpkg_installed/x64-linux" 2>/dev/null | head -1)
+            fi
           fi
           
           if [ -z "${vcpkg_installed}" ] || [ ! -d "${vcpkg_installed}" ]; then
             echo "ERROR: Could not find vcpkg installed directory!"
+            echo "VCPKG_INSTALLED_DIR=${VCPKG_INSTALLED_DIR:-not set}"
             echo "GITHUB_WORKSPACE=${GITHUB_WORKSPACE}"
             find "${GITHUB_WORKSPACE}" -type d -name "vcpkg_installed" 2>/dev/null || true
             find "/__w" -type d -name "vcpkg_installed" 2>/dev/null || true
@@ -488,9 +494,11 @@ jobs:
           extra-args: |
             -D Boost_VERBOSE=ON
             -D BOOST_INCLUDE_LIBRARIES="${{ steps.patch.outputs.module }}"
-            ${{ runner.os == 'Windows' && format('-D CMAKE_TOOLCHAIN_FILE={0}/vcpkg/scripts/buildsystems/vcpkg.cmake', github.workspace) || '' }}
             ${{ runner.os == 'Linux' && format('-D WolfSSL_INCLUDE_DIR={0}', steps.vcpkg-paths-linux.outputs.wolfssl_include) || '' }}
             ${{ runner.os == 'Linux' && format('-D WolfSSL_LIBRARY={0}', steps.vcpkg-paths-linux.outputs.wolfssl_library) || '' }}
+          # Windows: CMAKE_TOOLCHAIN_FILE is set via environment variable in "Set vcpkg paths" step
+          # The action picks it up automatically. Don't pass via extra-args (format() corrupts backslashes)
+          toolchain: ${{ env.CMAKE_TOOLCHAIN_FILE }}
           package: false
           package-artifact: false
           ref-source-dir: boost-root/libs/corosio
@@ -524,9 +532,9 @@ jobs:
           extra-args: |
             -D BOOST_CI_INSTALL_TEST=ON
             -D CMAKE_PREFIX_PATH=${{ steps.patch.outputs.workspace_root }}/.local
-            ${{ runner.os == 'Windows' && format('-D CMAKE_TOOLCHAIN_FILE={0}/vcpkg/scripts/buildsystems/vcpkg.cmake', github.workspace) || '' }}
             ${{ runner.os == 'Linux' && format('-D WolfSSL_INCLUDE_DIR={0}', steps.vcpkg-paths-linux.outputs.wolfssl_include) || '' }}
             ${{ runner.os == 'Linux' && format('-D WolfSSL_LIBRARY={0}', steps.vcpkg-paths-linux.outputs.wolfssl_library) || '' }}
+          toolchain: ${{ env.CMAKE_TOOLCHAIN_FILE }}
           ref-source-dir: boost-root/libs/corosio
           trace-commands: true
 
@@ -549,9 +557,9 @@ jobs:
           cmake-version: '>=3.15'
           extra-args: |
             -D BOOST_CI_INSTALL_TEST=OFF
-            ${{ runner.os == 'Windows' && format('-D CMAKE_TOOLCHAIN_FILE={0}/vcpkg/scripts/buildsystems/vcpkg.cmake', github.workspace) || '' }}
             ${{ runner.os == 'Linux' && format('-D WolfSSL_INCLUDE_DIR={0}', steps.vcpkg-paths-linux.outputs.wolfssl_include) || '' }}
             ${{ runner.os == 'Linux' && format('-D WolfSSL_LIBRARY={0}', steps.vcpkg-paths-linux.outputs.wolfssl_library) || '' }}
+          toolchain: ${{ env.CMAKE_TOOLCHAIN_FILE }}
           ref-source-dir: boost-root/libs/corosio/test/cmake_test
 
       - name: Root Project CMake Workflow
@@ -574,9 +582,9 @@ jobs:
           shared: ${{ matrix.shared }}
           cmake-version: '>=3.20'
           extra-args: |
-            ${{ runner.os == 'Windows' && format('-D CMAKE_TOOLCHAIN_FILE={0}/vcpkg/scripts/buildsystems/vcpkg.cmake', github.workspace) || '' }}
             ${{ runner.os == 'Linux' && format('-D WolfSSL_INCLUDE_DIR={0}', steps.vcpkg-paths-linux.outputs.wolfssl_include) || '' }}
             ${{ runner.os == 'Linux' && format('-D WolfSSL_LIBRARY={0}', steps.vcpkg-paths-linux.outputs.wolfssl_library) || '' }}
+          toolchain: ${{ env.CMAKE_TOOLCHAIN_FILE }}
           package: false
           package-artifact: false
           ref-source-dir: boost-root