From 7ca0b93826f7d3e7fee005e5ae84be3e78b34a64 Mon Sep 17 00:00:00 2001
From: Alex Hogen <code.ahogen@outlook.com>
Date: Fri, 28 Jun 2024 19:24:24 -0700
Subject: [PATCH 1/3] CMake modifications to more easily use this as a
 submodule of a project using both it and yaml-cpp.

---
 CMakeLists.txt | 49 +++++++++++++++++++++++++++++++------------------
 1 file changed, 31 insertions(+), 18 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2aa3453..cff5e7c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,15 @@
+cmake_minimum_required(VERSION 3.11)
+cmake_policy(SET CMP0077 NEW)
+
 project(cerberus-cpp LANGUAGES CXX)
 
-cmake_minimum_required(VERSION 3.11)
+set(CERBERUS_CPP_MAIN_PROJECT OFF)
+if(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
+  set(CERBERUS_CPP_MAIN_PROJECT ON)
+endif()
+
+option(CERBERUS_CPP_FIND_YAML_CPP "Enable find_package(yaml-cpp)." ON)
+option(CERBERUS_CPP_INSTALL "Enable generation of cerberus-cpp install targets" ${CERBERUS_CPP_MAIN_PROJECT})
 
 set(CMAKE_CXX_STANDARD 14)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
@@ -13,7 +22,9 @@ if(DOCS_ONLY)
   set(REQUIRED_STRING "")
 endif()
 
-find_package(yaml-cpp 0.6 ${REQUIRED_STRING})
+if(NOT ${CERBERUS_SKIP_YAML_CPP_PACKAGE_SEARCH})
+  find_package(yaml-cpp 0.6 ${REQUIRED_STRING})
+endif()
 
 # Add library target that can be linked against
 add_library(cerberus-cpp INTERFACE)
@@ -41,24 +52,26 @@ endif()
 # Installation rules
 include(GNUInstallDirs)
 
-install(
-  TARGETS cerberus-cpp
-  EXPORT cerberus-cpp-config
-  RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
-  LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-  ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
-)
+if (CERBERUS_CPP_INSTALL)
+  install(
+    TARGETS cerberus-cpp
+    EXPORT cerberus-cpp-config
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+  )
 
-install(
-  EXPORT cerberus-cpp-config
-  NAMESPACE cerberus-cpp::
-  DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/cerberus-cpp
-)
+  install(
+    EXPORT cerberus-cpp-config
+    NAMESPACE cerberus-cpp::
+    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/cerberus-cpp
+  )
 
-install(
-  DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/include/
-  DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
-)
+  install(
+    DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/include/
+    DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
+  )
+endif()
 
 include(FeatureSummary)
 feature_summary(WHAT ALL)

From 6cd333031c348baf7881d54a7a3ffb2d281a8bd0 Mon Sep 17 00:00:00 2001
From: Alex Hogen <code.ahogen@outlook.com>
Date: Sat, 29 Jun 2024 09:45:11 -0700
Subject: [PATCH 2/3] Fix include path

---
 CMakeLists.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index cff5e7c..784a831 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -31,7 +31,7 @@ add_library(cerberus-cpp INTERFACE)
 target_include_directories(
   cerberus-cpp
   INTERFACE
-  $<BUILD_INTERFACE:${CMAKE_SOURCE_DIR}/include/>
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include/>
   $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
 )
 target_link_libraries(cerberus-cpp INTERFACE yaml-cpp)
@@ -43,7 +43,7 @@ add_library(cerberus-cpp::cerberus-cpp ALIAS cerberus-cpp)
 add_subdirectory(doc)
 
 # Add the testing subdirectories
-if(EXISTS ${CMAKE_SOURCE_DIR}/ext/Catch2/CMakeLists.txt)
+if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/ext/Catch2/CMakeLists.txt)
   include(CTest)
   add_subdirectory(ext/Catch2)
   add_subdirectory(test)

From d116c6390e006fd055a396440325c80415d7bee8 Mon Sep 17 00:00:00 2001
From: Alex Hogen <code.ahogen@outlook.com>
Date: Mon, 1 Jul 2024 07:13:04 -0700
Subject: [PATCH 3/3] Fix cmake option I later renamed.

---
 CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 784a831..e472b2c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -22,7 +22,7 @@ if(DOCS_ONLY)
   set(REQUIRED_STRING "")
 endif()
 
-if(NOT ${CERBERUS_SKIP_YAML_CPP_PACKAGE_SEARCH})
+if(${CERBERUS_CPP_FIND_YAML_CPP})
   find_package(yaml-cpp 0.6 ${REQUIRED_STRING})
 endif()