fix installing via cmake (#374)

.cmake-format

@@ -0,0 +1,58 @@
+format:
+  tab_size: 2
+  line_width: 100
+  dangle_parens: true
+
+parse:
+  additional_commands:
+    cpmaddpackage:
+      pargs:
+        nargs: '*'
+        flags: []
+      spelling: CPMAddPackage
+      kwargs: &cpmaddpackagekwargs
+        NAME: 1
+        FORCE: 1
+        VERSION: 1
+        GIT_TAG: 1
+        DOWNLOAD_ONLY: 1
+        GITHUB_REPOSITORY: 1
+        GITLAB_REPOSITORY: 1
+        GIT_REPOSITORY: 1
+        SVN_REPOSITORY: 1
+        SVN_REVISION: 1
+        SOURCE_DIR: 1
+        DOWNLOAD_COMMAND: 1
+        FIND_PACKAGE_ARGUMENTS: 1
+        NO_CACHE: 1
+        GIT_SHALLOW: 1
+        URL: 1
+        URL_HASH: 1
+        URL_MD5: 1
+        DOWNLOAD_NAME: 1
+        DOWNLOAD_NO_EXTRACT: 1
+        HTTP_USERNAME: 1
+        HTTP_PASSWORD: 1
+        OPTIONS: +
+    cpmfindpackage:
+      pargs:
+        nargs: '*'
+        flags: []
+      spelling: CPMFindPackage
+      kwargs: *cpmaddpackagekwargs
+    packageproject:
+      pargs:
+        nargs: '*'
+        flags: []
+      spelling: packageProject
+      kwargs:
+        NAME: 1
+        VERSION: 1
+        NAMESPACE: 1
+        INCLUDE_DIR: 1
+        INCLUDE_DESTINATION: 1
+        BINARY_DIR: 1
+        COMPATIBILITY: 1
+        VERSION_HEADER: 1
+        DEPENDENCIES: +
+

.dockerignore

@@ -0,0 +1,9 @@
+build*/
+.cache/
+.git/
+.github/
+compile_commands.json
+.dockerignore
+Dockerfile
+install_dir/
+

.github/workflows/ubuntu_test_installed_version.yml

@@ -0,0 +1,60 @@
+name: ubuntu_test_installed_version.yml
+
+
+on:
+  push:
+    branches:
+      - master
+      - main
+  pull_request:
+    branches:
+      - master
+      - main
+
+env:
+  CTEST_OUTPUT_ON_FAILURE: 1
+  CPM_SOURCE_CACHE: ${{ github.workspace }}/cpm_modules
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: actions/cache@v3
+        with:
+          path: "**/cpm_modules"
+          key: ${{ github.workflow }}-cpm-modules-${{ hashFiles('**/CMakeLists.txt', '**/*.cmake') }}
+
+      - name: install library
+        run: |
+          cmake -S. -Bbuild -DCMAKE_BUILD_TYPE=Release --log-level=DEBUG -DCMAKE_INSTALL_PREFIX=./install_dir
+          cmake --build ./build -j$(nproc)
+          cmake --install ./build --prefix ./install_dir
+          rm -rf build
+
+      - name: configure with installed version via cmake
+        run: CMAKE_PREFIX_PATH="./install_dir" cmake -S. -Bbuild2 -DMAGIC_ENUM_OPT_TEST_INSTALLED_VERSION=1 --log-level=DEBUG
+
+      - name: build with installed version via cmake
+        run: cmake --build build2 --config Debug -j$(nproc) --verbose
+
+      - name: test
+        run: |
+          cd build2
+          ctest --build-config Debug -j$(nproc)
+
+      - name: clear 
+        run: rm -rf build2
+
+      - name: configure with installed version via pkgconfig
+        run: CMAKE_PREFIX_PATH="./install_dir" cmake -S. -Bbuild3 -DMAGIC_ENUM_OPT_TEST_INSTALLED_VERSION_PKGCONFIG=1 -DPKG_CONFIG_USE_CMAKE_PREFIX_PATH=1 --log-level=DEBUG
+
+      - name: build with installed version via pkgconfig
+        run: cmake --build build3 --config Debug -j$(nproc) --verbose
+
+      - name: test
+        run: |
+          cd build3
+          ctest --build-config Debug -j$(nproc)

.gitignore

@@ -1,4 +1,6 @@
-build/
+build*/
+cmake_build*/
+install_dir/
 .vscode/
 .vs/
 

BUILD.bazel

@@ -7,5 +7,5 @@ package(default_visibility = ["//visibility:public"])
 cc_library(
     name = "magic_enum",
     hdrs = glob(["include/magic_enum/*.hpp"]),
-    includes = ["include/magic_enum"],
+    includes = ["include"],
 )