From fadb4e755f16bbc61879a926a689cf472bd4a76b Mon Sep 17 00:00:00 2001
From: spo <sergey.pokhodenko@opencascade.com>
Date: Fri, 25 Dec 2015 11:56:03 +0300
Subject: [PATCH] Add CMake flags DEFAULT_SOLVER, NO_SolveSpace & NO_PlaneGCS
 to switch solvers.

---
 src/Config/CMakeLists.txt                  | 40 +++++++++++++++++++++-
 src/Config/{plugins.xml => plugins.xml.in} |  6 ++--
 src/SketchSolver/CMakeLists.txt            | 17 ++++++---
 3 files changed, 56 insertions(+), 7 deletions(-)
 rename src/Config/{plugins.xml => plugins.xml.in} (91%)

diff --git a/src/Config/CMakeLists.txt b/src/Config/CMakeLists.txt
index e43622f80..75cb09703 100644
--- a/src/Config/CMakeLists.txt
+++ b/src/Config/CMakeLists.txt
@@ -45,7 +45,7 @@ SET(PROJECT_SOURCES
 )
 
 SET(XML_RESOURCES
-  plugins.xml
+  ${CMAKE_CURRENT_BINARY_DIR}/plugins.xml
   dataModel.xml
 )
 
@@ -64,5 +64,43 @@ ADD_LIBRARY(Config SHARED ${PROJECT_SOURCES} ${PROJECT_HEADERS} ${XML_RESOURCES}
 
 TARGET_LINK_LIBRARIES(Config ${PROJECT_LIBRARIES})
 
+# Prepare plugins.xml
+
+# the solver to activate after installation
+SET(DEFAULT_SOLVER "SolveSpace")
+
+# the list of all solvers
+SET(SOLVERS "SolveSpace" "PlaneGCS")
+
+# apply NO_<solver> variables
+FOREACH(solver IN LISTS SOLVERS)
+  IF(NO_${solver})
+    LIST(REMOVE_ITEM SOLVERS ${solver})
+  ENDIF()
+ENDFOREACH()
+
+# check default solver in the list of solvers
+LIST(FIND SOLVERS ${DEFAULT_SOLVER} INDEX)
+IF(${INDEX} GREATER -1)
+  MESSAGE(STATUS "Default solver: ${DEFAULT_SOLVER}") 
+ELSE()
+  MESSAGE(FATAL_ERROR "Default solver: ${DEFAULT_SOLVER} is switched off.\nUnset NO_${DEFAULT_SOLVER} variable or define another default solver DEFAULT_SOLVER=<SOLVER> from the list: ${SOLVERS}.") 
+ENDIF()
+
+# prepare variables for configuration
+SET(DEFAULT_SOLVER "  <plugin library=\"${DEFAULT_SOLVER}Solver\"/>")
+FOREACH(solver IN LISTS SOLVERS)
+  IF(DEFINED ALL_SOLVERS)
+    SET(ALL_SOLVERS "${ALL_SOLVERS}\n")
+  ENDIF()
+  SET(ALL_SOLVERS "${ALL_SOLVERS}  <plugin library=\"${solver}Solver\"/>")
+ENDFOREACH()
+
+# configuration
+CONFIGURE_FILE(
+  "${CMAKE_CURRENT_SOURCE_DIR}/plugins.xml.in"
+  "${CMAKE_CURRENT_BINARY_DIR}/plugins.xml"
+  )
+
 INSTALL(TARGETS Config DESTINATION bin)
 INSTALL(FILES ${XML_RESOURCES} DESTINATION plugins)
diff --git a/src/Config/plugins.xml b/src/Config/plugins.xml.in
similarity index 91%
rename from src/Config/plugins.xml
rename to src/Config/plugins.xml.in
index 77422df32..af91d8fb2 100644
--- a/src/Config/plugins.xml
+++ b/src/Config/plugins.xml.in
@@ -11,8 +11,10 @@
   <plugin script="addons_Features" configuration="addons_Features.xml"/>
   <plugin script="ConnectorPlugin" configuration="plugin-Connector.xml" dependency="Geometry"/>
   <plugin library="ParametersPlugin" configuration="plugin-Parameters.xml"/>
-  <plugin library="SolveSpaceSolver"/>
-<!--  <plugin library="PlaneGCSSolver"/> -->
+@DEFAULT_SOLVER@
+<!--
+@ALL_SOLVERS@
+-->
   <plugin library="GeomValidators"/>
   <plugin library="DFBrowser" internal="true"/>
 </plugins>
diff --git a/src/SketchSolver/CMakeLists.txt b/src/SketchSolver/CMakeLists.txt
index 25c5a8c26..91cfe6c82 100644
--- a/src/SketchSolver/CMakeLists.txt
+++ b/src/SketchSolver/CMakeLists.txt
@@ -77,10 +77,19 @@ INSTALL(TARGETS SketchSolver DESTINATION plugins)
 
 
 # Include specific solvers
-FIND_FILE(SSPath "SolveSpaceSolver/CMakeLists.txt" PATHS "${CMAKE_CURRENT_SOURCE_DIR}")
-STRING(COMPARE NOTEQUAL ${SSPath} "SSPath-NOTFOUND" SSPath_FOUND)
-FIND_FILE(GCSPath "PlaneGCSSolver/CMakeLists.txt" PATHS "${CMAKE_CURRENT_SOURCE_DIR}")
-STRING(COMPARE NOTEQUAL ${GCSPath} "GCSPath-NOTFOUND" GCSPath_FOUND)
+IF(NO_SolveSpace)
+  SET(SSPath_FOUND FALSE)
+ELSE()
+  FIND_FILE(SSPath "SolveSpaceSolver/CMakeLists.txt" PATHS "${CMAKE_CURRENT_SOURCE_DIR}")
+  STRING(COMPARE NOTEQUAL ${SSPath} "SSPath-NOTFOUND" SSPath_FOUND)
+ENDIF()
+
+IF(NO_PlaneGCS)
+  SET(GCSPath_FOUND FALSE)
+ELSE()
+  FIND_FILE(GCSPath "PlaneGCSSolver/CMakeLists.txt" PATHS "${CMAKE_CURRENT_SOURCE_DIR}")
+  STRING(COMPARE NOTEQUAL ${GCSPath} "GCSPath-NOTFOUND" GCSPath_FOUND)
+ENDIF()
 
 IF(${SSPath_FOUND} OR ${GCSPath_FOUND})
   IF(${SSPath_FOUND})
-- 
2.39.2