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- OpenVDBUtils.cmake
- ------------------
- A utility CMake file which provides helper functions for configuring an
- OpenVDB installation.
- Use this module by invoking include with the form::
- include ( OpenVDBUtils )
- The following functions are provided:
- ``OPENVDB_VERSION_FROM_HEADER``
- OPENVDB_VERSION_FROM_HEADER ( <header_path>
- VERSION [<version>]
- MAJOR [<version>]
- MINOR [<version>]
- PATCH [<version>] )
- Parse the provided version file to retrieve the current OpenVDB
- version information. The file is expected to be a version.h file
- as found in the following path of an OpenVDB repository:
- openvdb/version.h
- If the file does not exist, variables are unmodified.
- ``OPENVDB_ABI_VERSION_FROM_PRINT``
- OPENVDB_ABI_VERSION_FROM_PRINT ( <vdb_print>
- [QUIET]
- ABI [<version>] )
- Retrieve the ABI version that an installation of OpenVDB was compiled
- for using the provided vdb_print binary. Parses the result of:
- vdb_print --version
- If the binary does not exist or fails to launch, variables are
- unmodified.
- function(OPENVDB_VERSION_FROM_HEADER OPENVDB_VERSION_FILE)
- cmake_parse_arguments(_VDB "" "VERSION;MAJOR;MINOR;PATCH" "" ${ARGN})
- if(NOT EXISTS ${OPENVDB_VERSION_FILE})
- return()
- endif()
- file(STRINGS "${OPENVDB_VERSION_FILE}" openvdb_version_str
- REGEX "^#define[\t ]+OPENVDB_LIBRARY_MAJOR_VERSION_NUMBER[\t ]+.*"
- )
- string(REGEX REPLACE "^.*OPENVDB_LIBRARY_MAJOR_VERSION_NUMBER[\t ]+([0-9]*).*$" "\\1"
- _OpenVDB_MAJOR_VERSION "${openvdb_version_str}"
- )
- file(STRINGS "${OPENVDB_VERSION_FILE}" openvdb_version_str
- REGEX "^#define[\t ]+OPENVDB_LIBRARY_MINOR_VERSION_NUMBER[\t ]+.*"
- )
- string(REGEX REPLACE "^.*OPENVDB_LIBRARY_MINOR_VERSION_NUMBER[\t ]+([0-9]*).*$" "\\1"
- _OpenVDB_MINOR_VERSION "${openvdb_version_str}"
- )
- file(STRINGS "${OPENVDB_VERSION_FILE}" openvdb_version_str
- REGEX "^#define[\t ]+OPENVDB_LIBRARY_PATCH_VERSION_NUMBER[\t ]+.*"
- )
- string(REGEX REPLACE "^.*OPENVDB_LIBRARY_PATCH_VERSION_NUMBER[\t ]+([0-9]*).*$" "\\1"
- _OpenVDB_PATCH_VERSION "${openvdb_version_str}"
- )
- unset(openvdb_version_str)
- if(_VDB_VERSION)
- set(${_VDB_VERSION}
- ${_OpenVDB_MAJOR_VERSION}.${_OpenVDB_MINOR_VERSION}.${_OpenVDB_PATCH_VERSION}
- PARENT_SCOPE
- )
- endif()
- if(_VDB_MAJOR)
- set(${_VDB_MAJOR} ${_OpenVDB_MAJOR_VERSION} PARENT_SCOPE)
- endif()
- if(_VDB_MINOR)
- set(${_VDB_MINOR} ${_OpenVDB_MINOR_VERSION} PARENT_SCOPE)
- endif()
- if(_VDB_PATCH)
- set(${_VDB_PATCH} ${_OpenVDB_PATCH_VERSION} PARENT_SCOPE)
- endif()
- endfunction()
- function(OPENVDB_ABI_VERSION_FROM_PRINT OPENVDB_PRINT)
- cmake_parse_arguments(_VDB "QUIET" "ABI" "" ${ARGN})
- if(NOT EXISTS ${OPENVDB_PRINT})
- if(NOT OpenVDB_FIND_QUIETLY)
- message(WARNING "vdb_print not found! ${OPENVDB_PRINT}")
- endif()
- return()
- endif()
- set(_VDB_PRINT_VERSION_STRING "")
- set(_VDB_PRINT_RETURN_STATUS "")
- if(${_VDB_QUIET})
- execute_process(COMMAND ${OPENVDB_PRINT} "--version"
- RESULT_VARIABLE _VDB_PRINT_RETURN_STATUS
- OUTPUT_VARIABLE _VDB_PRINT_VERSION_STRING
- ERROR_QUIET
- OUTPUT_STRIP_TRAILING_WHITESPACE
- )
- else()
- execute_process(COMMAND ${OPENVDB_PRINT} "--version"
- RESULT_VARIABLE _VDB_PRINT_RETURN_STATUS
- OUTPUT_VARIABLE _VDB_PRINT_VERSION_STRING
- OUTPUT_STRIP_TRAILING_WHITESPACE
- )
- endif()
- if(${_VDB_PRINT_RETURN_STATUS})
- if(NOT OpenVDB_FIND_QUIETLY)
- message(WARNING "vdb_print returned with status ${_VDB_PRINT_RETURN_STATUS}")
- endif()
- return()
- endif()
- set(_OpenVDB_ABI)
- if (_VDB_PRINT_VERSION_STRING)
- string(REGEX REPLACE ".*abi([0-9]*).*" "\\1" _OpenVDB_ABI ${_VDB_PRINT_VERSION_STRING})
- endif ()
- if(${_OpenVDB_ABI} STREQUAL ${_VDB_PRINT_VERSION_STRING})
- set(_OpenVDB_ABI "")
- endif()
- unset(_VDB_PRINT_RETURN_STATUS)
- unset(_VDB_PRINT_VERSION_STRING)
- if(_VDB_ABI)
- set(${_VDB_ABI} ${_OpenVDB_ABI} PARENT_SCOPE)
- endif()
- endfunction()
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