CMake: avoid searching Python files multiple times (#517)

* Dont search for python and pybind11 if already found previously

* remove unsupported keyword Global (need cmake 3.24)

* restore global keyword while testing cmake version

* Update Bindings.SofaConfig.cmake.in

Author: fredroy

SofaPython3Config.cmake.in

@@ -9,12 +9,16 @@ list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}")
 include(SofaPython3Tools)
 
 # Find Python3
-if(NOT Python_FOUND)
-    find_package(Python @PythonMAJMIN@ EXACT QUIET REQUIRED COMPONENTS Interpreter Development)
+if(NOT TARGET Python::Python)
+    if(CMAKE_VERSION VERSION_LESS "3.24.0") 
+        find_package(Python @PythonMAJMIN@ EXACT QUIET REQUIRED COMPONENTS Interpreter Development)
+    else()
+        find_package(Python @PythonMAJMIN@ EXACT QUIET REQUIRED COMPONENTS Interpreter Development GLOBAL)
+    endif()
 endif()
 
 # Find pybind11
-if(NOT pybind11_FOUND)
+if(NOT TARGET pybind11)
     # Save PYTHON_* vars
     set(PYTHON_VERSION_RESET "${PYTHON_VERSION}")
     set(PYTHON_EXECUTABLE_RESET "${PYTHON_EXECUTABLE}")
@@ -40,7 +44,11 @@ if(NOT pybind11_FOUND)
         set(PYTHON_INCLUDE_DIR "${Python_INCLUDE_DIRS}" CACHE INTERNAL "" FORCE)
     endif()
 
-    find_package(pybind11 @pybind11_VERSION@ QUIET REQUIRED CONFIG)
+    if(CMAKE_VERSION VERSION_LESS "3.24.0") 
+        find_package(pybind11 @pybind11_VERSION@ QUIET REQUIRED CONFIG)
+    else()
+        find_package(pybind11 @pybind11_VERSION@ QUIET REQUIRED CONFIG GLOBAL)
+    endif()
 
     # Reset PYTHON_* vars
     set(PYTHON_VERSION "${PYTHON_VERSION_RESET}" CACHE STRING "" FORCE)

bindings/BindingsConfig.cmake.in

@@ -5,15 +5,17 @@
 
 set(SP3_WITH_SOFAEXPORTER @SP3_WITH_SOFAEXPORTER@)
 
-find_package(SofaPython3 QUIET REQUIRED COMPONENTS
+find_package(Sofa.Config QUIET REQUIRED)
+
+sofa_find_package(SofaPython3 QUIET REQUIRED COMPONENTS
     Bindings.Modules
     Bindings.Sofa
     Bindings.SofaGui
     Bindings.SofaRuntime
     Bindings.SofaTypes
     )
 if(SP3_WITH_SOFAEXPORTER)
-    find_package(SofaPython3 QUIET REQUIRED COMPONENTS Bindings.SofaExporter)
+    sofa_find_package(SofaPython3 QUIET REQUIRED COMPONENTS Bindings.SofaExporter)
 endif()
 
 # If we are importing this config file and the target is not yet there this is indicating that

bindings/Modules/Bindings.ModulesConfig.cmake.in

@@ -3,16 +3,17 @@
 @PACKAGE_GUARD@
 @PACKAGE_INIT@
 
-find_package(SofaPython3 QUIET REQUIRED COMPONENTS Plugin Bindings.Sofa)
+find_package(Sofa.Config QUIET REQUIRED)
+sofa_find_package(SofaPython3 QUIET REQUIRED COMPONENTS Plugin Bindings.Sofa)
 
 # Required by Bindings.Modules.SofaBaseTopology
-find_package(Sofa.Component.Topology.Container.Grid QUIET REQUIRED)
+sofa_find_package(Sofa.Component.Topology.Container.Grid QUIET REQUIRED)
 
 # Required by Bindings.Modules.SofaDeformable
-find_package(Sofa.Component.SolidMechanics.Spring QUIET REQUIRED)
+sofa_find_package(Sofa.Component.SolidMechanics.Spring QUIET REQUIRED)
 
 # Required by Bindings.Modules.SofaLinearSolver
-find_package(Sofa.Component.LinearSolver.Iterative QUIET REQUIRED)
+sofa_find_package(Sofa.Component.LinearSolver.Iterative QUIET REQUIRED)
 
 # If we are importing this config file and the target is not yet there this is indicating that
 # target is an imported one. So we include it

bindings/Sofa/Bindings.SofaConfig.cmake.in

@@ -3,21 +3,23 @@
 @PACKAGE_GUARD@
 @PACKAGE_INIT@
 
-find_package(SofaPython3 QUIET REQUIRED COMPONENTS Plugin)
+find_package(Sofa.Config QUIET REQUIRED)
+
+sofa_find_package(SofaPython3 QUIET REQUIRED COMPONENTS Plugin)
 
 # Required by Bindings.Sofa.Helper, Bindings.Sofa.Types
-find_package(Sofa.Core QUIET REQUIRED)
+sofa_find_package(Sofa.Core QUIET REQUIRED)
 
 # Required by Bindings.Sofa.Core
-find_package(Sofa.Simulation.Core QUIET REQUIRED)
+sofa_find_package(Sofa.Simulation.Core QUIET REQUIRED)
 
 # Required by Bindings.Sofa.Core
-find_package(Sofa.Component.Visual QUIET REQUIRED)
-find_package(Sofa.Component.Collision.Response.Contact QUIET REQUIRED)
-find_package(Sofa.SimpleApi QUIET REQUIRED)
+sofa_find_package(Sofa.Component.Visual QUIET REQUIRED)
+sofa_find_package(Sofa.Component.Collision.Response.Contact QUIET REQUIRED)
+sofa_find_package(Sofa.SimpleApi QUIET REQUIRED)
 
 # Required by Bindings.Sofa.Simulation
-find_package(Sofa.Simulation.Graph QUIET REQUIRED)
+sofa_find_package(Sofa.Simulation.Graph QUIET REQUIRED)
 
 # If we are importing this config file and the target is not yet there this is indicating that
 # target is an imported one. So we include it