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Support python virtual environments #80

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Support python virtual environments #80

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dce0c4e
Support python venv
tfardet Feb 2, 2024
9e9e4c6
Remove cmake_path
Feb 9, 2024
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10 changes: 6 additions & 4 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -77,7 +77,7 @@ cgrowth_get_color_flags()

IF ( CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT )
# set discovered python local folder
cmake_path(SET PY_LOCAL_DIR "${PY_LOCAL_DIR}")
string(REGEX REPLACE "\\\\" "/" PY_LOCAL_DIR ${PY_LOCAL_DIR})

set( Python3_INSTALL_DIR "${PY_LOCAL_DIR}" )
set( Python3_INSTALL_DIR "${PY_LOCAL_DIR}" CACHE STRING "python install dir" FORCE)
Expand All @@ -93,7 +93,9 @@ IF ( CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT )

# get local user library folder as default install prefix ()
if (Python3_EXECUTABLE MATCHES "conda")
cmake_path(SET CMAKE_INSTALL_PREFIX "$ENV{CONDA_PREFIX}")
set(CMAKE_INSTALL_PREFIX "$ENV{CONDA_PREFIX}")
elseif (EXISTS $ENV{VIRTUAL_ENV})
set(CMAKE_INSTALL_PREFIX "$ENV{VIRTUAL_ENV}")
else ()
execute_process(COMMAND ${Python3_EXECUTABLE} -m site --user-base OUTPUT_VARIABLE CMAKE_INSTALL_PREFIX OUTPUT_STRIP_TRAILING_WHITESPACE)
endif ()
Expand All @@ -109,7 +111,7 @@ IF ( CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT )
endif ()
endif ()

cmake_path(SET CMAKE_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}")
string(REGEX REPLACE "\\\\" "/" CMAKE_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX})

# cache it
set( CMAKE_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}" CACHE STRING "install prefix" FORCE)
Expand All @@ -119,7 +121,7 @@ ELSEIF ( ("${CMAKE_INSTALL_PREFIX}" STREQUAL "/usr/local") AND NOT ("$CACHE{CMAK
ELSE ()
# make sure we get the absolute path
get_filename_component(CMAKE_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}" ABSOLUTE)
cmake_path(SET CMAKE_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}")
string(REGEX REPLACE "\\\\" "/" CMAKE_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX})
ENDIF ()

# set libraries in binaries installation directories
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8 changes: 5 additions & 3 deletions cmake/ProcessOptions.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -132,6 +132,8 @@ function( CGROWTH_PROCESS_WITH_PYTHON )
set( HAVE_PYTHON OFF PARENT_SCOPE )
string(REGEX MATCH "^3([.][0-9]+)?" VALID_PYVERSION "${with-python}" )

set(Python_FIND_VIRTUALENV FIRST)

if ( ${with-python} STREQUAL "ON" OR VALID_PYVERSION OR EXISTS ${with-python} )

# Localize the Python interpreter
Expand All @@ -145,7 +147,7 @@ print('.'.join(str(v) for v in sys.version_info));
print(sys.prefix);
print(s.get_python_inc(plat_specific=True));
print(s.get_python_lib(plat_specific=True));
print(s.get_config_var('SO'));
print(s.get_config_var('EXT_SUFFIX'));
print(hasattr(sys, 'gettotalrefcount')+0);
print(struct.calcsize('@P'));
print(s.get_config_var('LDVERSION') or s.get_config_var('VERSION'));
Expand Down Expand Up @@ -217,13 +219,13 @@ print(s.get_config_var('MULTIARCH') or '');
endif ()

# set local install dir for python packages
if (Python3_EXECUTABLE MATCHES "conda")
if (Python3_EXECUTABLE MATCHES "conda" OR EXISTS "$ENV{VIRTUAL_ENV}")
execute_process(COMMAND ${Python3_EXECUTABLE} -c "import site; print([v for v in site.getsitepackages() if v.endswith('site-packages')][0])" OUTPUT_VARIABLE PY_LOCAL_DIR OUTPUT_STRIP_TRAILING_WHITESPACE)
else ()
execute_process(COMMAND ${Python3_EXECUTABLE} -m site --user-site OUTPUT_VARIABLE PY_LOCAL_DIR OUTPUT_STRIP_TRAILING_WHITESPACE)
endif ()

cmake_path(SET PY_LOCAL_DIR "${PY_LOCAL_DIR}")
string(REGEX REPLACE "\\\\" "/" PY_LOCAL_DIR ${PY_LOCAL_DIR})

# create the directory if it does not exist
file(MAKE_DIRECTORY "${PY_LOCAL_DIR}")
Expand Down
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