More tests and docs on CMake installation (#213)

Author: apolukhin

.github/workflows/ci.yml

@@ -266,10 +266,21 @@ jobs:
       - name: Use the installed library
         run: |
           cd ../boost-root/libs/$LIBRARY/test/cmake_install_test && mkdir __build__ && cd __build__
-          cmake -DCMAKE_INSTALL_PREFIX=~/.local ..
-          cmake --build .
+
           export LD_LIBRARY_PATH=$HOME/.local/lib:$LD_LIBRARY_PATH
-          ctest --output-on-failure --no-tests=error
+
+          set -e
+          if [[ "$OSTYPE" == "darwin"* ]]; then
+              BACKENDS_ARRAY=(stacktrace stacktrace_noop stacktrace_basic)
+          else
+              BACKENDS_ARRAY=(stacktrace stacktrace_noop stacktrace_basic stacktrace_backtrace)
+          fi
+          for BACKEND in ${BACKENDS_ARRAY[@]}; do
+              rm -rf *
+              cmake -DCMAKE_INSTALL_PREFIX=~/.local -DBOOST_STACKTRACE_IMPL_BACKEND=${BACKEND} ..
+              cmake --build .
+              ctest --output-on-failure --no-tests=error -V
+          done
 
   posix-cmake-test:
     strategy:
@@ -426,10 +437,20 @@ jobs:
         shell: cmd
         run: |
           cd ../boost-root/libs/%LIBRARY%/test/cmake_install_test && mkdir __build__ && cd __build__
-          cmake -DCMAKE_INSTALL_PREFIX=C:/cmake-prefix ..
+          cmake -DCMAKE_INSTALL_PREFIX=C:/cmake-prefix -DBOOST_STACKTRACE_IMPL_BACKEND=stacktrace ..
           cmake --build . --config Debug
           PATH C:\cmake-prefix\bin;%PATH%
-          ctest --output-on-failure --no-tests=error -C Debug
+          ctest --output-on-failure --no-tests=error -C Debug -V
+
+          cmake -DCMAKE_INSTALL_PREFIX=C:/cmake-prefix -DBOOST_STACKTRACE_IMPL_BACKEND=stacktrace_windbg ..
+          cmake --build . --config Debug
+          PATH C:\cmake-prefix\bin;%PATH%
+          ctest --output-on-failure --no-tests=error -C Debug -V
+
+          cmake -DCMAKE_INSTALL_PREFIX=C:/cmake-prefix -DBOOST_STACKTRACE_IMPL_BACKEND=stacktrace_windbg_cached  ..
+          cmake --build . --config Debug
+          PATH C:\cmake-prefix\bin;%PATH%
+          ctest --output-on-failure --no-tests=error -C Debug -V
 
       - name: Use the installed library (RelWithDebInfo)
         shell: cmd

CMakeLists.txt

@@ -2,7 +2,7 @@
 # Distributed under the Boost Software License, Version 1.0.
 # https://www.boost.org/LICENSE_1_0.txt
 
-cmake_minimum_required(VERSION 3.5...3.16)
+cmake_minimum_required(VERSION 3.8...4.20)
 
 project(boost_stacktrace VERSION "${BOOST_SUPERPROJECT_VERSION}" LANGUAGES CXX)
 
@@ -142,8 +142,6 @@ stacktrace_add_library(from_exception ${BOOST_STACKTRACE_ENABLE_FROM_EXCEPTION}
 
 #
 
-if(BUILD_TESTING AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/test/CMakeLists.txt")
-
+if(BUILD_TESTING)
   add_subdirectory(test)
-
 endif()

doc/stacktrace.qbk

@@ -334,6 +334,17 @@ target_link_libraries(${PROJECT}  # your project
 )
 ```
 
+If Boost is installed into the system the best way to get it for your project
+is via `find_package`:
+
+```
+find_package(
+    Boost
+    REQUIRED stacktrace stacktrace_from_exception
+    CONFIG
+)
+```
+
 [endsect]
 
 [section CMake build notes]

test/cmake_install_test/CMakeLists.txt

@@ -2,14 +2,21 @@
 # Distributed under the Boost Software License, Version 1.0.
 # https://www.boost.org/LICENSE_1_0.txt
 
-cmake_minimum_required(VERSION 3.5...3.20)
+cmake_minimum_required(VERSION 3.8...4.20)
 
 project(cmake_install_test LANGUAGES CXX)
 
-find_package(boost_stacktrace REQUIRED)
-
+find_package(
+    Boost
+    REQUIRED stacktrace ${BOOST_STACKTRACE_IMPL_BACKEND} stacktrace_from_exception
+    CONFIG
+)
 add_executable(main main.cpp)
-target_link_libraries(main Boost::stacktrace)
+target_link_libraries(main Boost::${BOOST_STACKTRACE_IMPL_BACKEND})
+
+add_executable(main_from_exception main.cpp)
+target_link_libraries(main_from_exception Boost::stacktrace_from_exception Boost::${BOOST_STACKTRACE_IMPL_BACKEND})
 
 enable_testing()
 add_test(main main)
+add_test(main_from_exception main_from_exception)

test/cmake_install_test/main.cpp

@@ -9,4 +9,9 @@
 int main()
 {
     std::cout << boost::stacktrace::stacktrace() << std::endl;
+    try {
+        throw 42;
+    } catch (...) {
+        std::cout << "From current excption:\n" << boost::stacktrace::stacktrace::from_current_exception() << std::endl;
+    }
 }