Merge pull request #304 from LLNL/feature/faster_virtual_env_install

Reduce reinstall times

cmake/spheral/SpheralAddLibs.cmake

@@ -46,6 +46,17 @@ function(spheral_add_obj_library package_name obj_list_name)
   # Install the headers
   install(FILES ${${package_name}_headers}
     DESTINATION include/${package_name})
+  if(ENABLE_DEV_BUILD)
+    # Export target name is either spheral_cxx-targets or spheral_llnlcxx-targets
+    if (${obj_list_name} MATCHES "LLNL")
+      set(export_target_name spheral_llnlcxx-targets)
+    else()
+      set(export_target_name spheral_cxx-targets)
+    endif()
+    install(TARGETS Spheral_${package_name}
+      EXPORT ${export_target_name}
+      DESTINATION lib)
+  endif()
   # Append Spheral_${package_name} to the global object list
   # For example, SPHERAL_OBJ_LIBS or LLNLSPHERAL_OBJ_LIBS
   set_property(GLOBAL APPEND PROPERTY ${obj_list_name} Spheral_${package_name})
@@ -85,9 +96,6 @@ function(spheral_add_cxx_library package_name _cxx_obj_list)
   set(export_target_name spheral_${lower_case_package}-targets)
 
   if(ENABLE_DEV_BUILD)
-    install(TARGETS ${_cxx_obj_list}
-      EXPORT ${export_target_name}
-      DESTINATION lib)
     add_library(Spheral_${package_name} INTERFACE)
     target_link_libraries(Spheral_${package_name} INTERFACE ${_cxx_obj_list})
   else()

scripts/CMakeLists.txt

@@ -1,12 +1,12 @@
 if (NOT ENABLE_CXXONLY)
 
-  # We Use the spack generated build time python path to
+  # We use the spack generated build time python path to
   # pick up all of the python modules needed for our runtime.
-  # Some modules need to install from directories other that
-  # site-packages so we strip away site-packages pack and 
+  # Since some modules need to install from directories other than
+  # site-packages, we strip away site-packages and pack and
   # copy the full contents of the python library prefix to
   # our virtual env in spheral-setup-venv.sh
-  string(REGEX REPLACE "lib\/python3.9\/site-packages\/?[A-Za-z]*:" "* " VIRTUALENV_PYTHONPATH_COPY "${SPACK_PYTHONPATH}:")
+  string(REGEX REPLACE "lib\/python3.9\/site-packages\/?[A-Za-z]*:" ";" VIRTUALENV_PYTHONPATH_COPY "${SPACK_PYTHONPATH}:")
 
   set(SPHERAL_ATS_BUILD_CONFIG_ARGS )
 
@@ -35,7 +35,7 @@ if (NOT ENABLE_CXXONLY)
   endif()
 
   string(REPLACE ";" " " SPHERAL_ATS_BUILD_CONFIG_ARGS_STRING "${SPHERAL_ATS_BUILD_CONFIG_ARGS}")
-  
+
   configure_file(
     "${CMAKE_CURRENT_SOURCE_DIR}/spheral-setup-venv.in"
     "${CMAKE_CURRENT_BINARY_DIR}/spheral-setup-venv.sh"
@@ -61,7 +61,7 @@ if (NOT ENABLE_CXXONLY)
     "${CMAKE_CURRENT_BINARY_DIR}/performance/performance.py"
   )
 
-  install(FILES 
+  install(FILES
       "${CMAKE_CURRENT_BINARY_DIR}/spheral-setup-venv.sh"
       "${CMAKE_CURRENT_BINARY_DIR}/spheral-env.sh"
       "${CMAKE_CURRENT_BINARY_DIR}/atstest.sh"
@@ -76,6 +76,24 @@ if (NOT ENABLE_CXXONLY)
   )
 
   install(CODE "execute_process( \
-    COMMAND bash ${CMAKE_CURRENT_BINARY_DIR}/spheral-setup-venv.sh \ 
-    )")
+    COMMAND env PYTHONPATH=${SPACK_PYTHONPATH} ${PYTHON_EXE} -m venv .venv --without-pip --prompt \
+    'Spheral>')"
+  )
+
+  foreach(_venv_dir ${VIRTUALENV_PYTHONPATH_COPY})
+    if(NOT ${_venv_dir} MATCHES "sphinx")
+      install(DIRECTORY ${_venv_dir}
+        USE_SOURCE_PERMISSIONS
+        MESSAGE_NEVER
+        DESTINATION "${CMAKE_INSTALL_PREFIX}/.venv"
+        PATTERN "*\/.spack*" EXCLUDE
+        PATTERN "*\/tests\/*" EXCLUDE
+        PATTERN "*.pyc" EXCLUDE
+      )
+    endif()
+  endforeach()
+
+  install(CODE "execute_process( \
+    COMMAND bash ${CMAKE_CURRENT_BINARY_DIR}/spheral-setup-venv.sh)"
+  )
 endif()

scripts/spheral-setup-venv.in

@@ -1,9 +1,4 @@
 cd @CMAKE_INSTALL_PREFIX@
-echo "Creating Spheral virtual python environment ..."
-env PYTHONPATH=@SPACK_PYTHONPATH@ @PYTHON_EXE@ -m venv .venv --without-pip --prompt "Spheral>"
-
-echo "Installing runtime python libraries ..."
-cp -r @VIRTUALENV_PYTHONPATH_COPY@ .venv/ &> /dev/null
 
 echo "Setup Spheral libraries ..."
 cp @SPHERAL_SITE_PACKAGES_PATH@/Spheral.pth .venv/@SPHERAL_SITE_PACKAGES_PATH@/