diff options
| -rw-r--r-- | modules/check_installed_exports_file.cmake | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/modules/check_installed_exports_file.cmake b/modules/check_installed_exports_file.cmake new file mode 100644 index 00000000..454d2a09 --- /dev/null +++ b/modules/check_installed_exports_file.cmake @@ -0,0 +1,44 @@ +# INSTALL_DIR - set it to the install destination +# INSTALL_PREFIX - set it to CMAKE_INSTALL_PREFIX +# CURRENT_BINARY_DIR - set it to CMAKE_CURRENT_BINARY_DIR +# FILENAME - the filename of the exports file + +# get the absolute install directory, consider absolute and relative paths and also DESTDIR +if(IS_ABSOLUTE "${INSTALL_DIR}") + set(installDir "$ENV{DESTDIR}${INSTALL_DIR}") +else(IS_ABSOLUTE "${INSTALL_DIR}") + set(installDir "$ENV{DESTDIR}${INSTALL_PREFIX}/${INSTALL_DIR}") +endif(IS_ABSOLUTE "${INSTALL_DIR}") + +set(installedExportsFile "${installDir}/${FILENAME}") + + +# if the file already exists at the install location, and if we can +# find the exports file in the build dir, read both, and if their contents differ, +# remove all configuration-specific exports files from the install dir, since +# they may create conflicts if the new targets have been added/targets have been +# removed/ targets have been renamed/ the namespace for the exported targets has changed +if(EXISTS "${installedExportsFile}") + if (${INSTALL_DIR} MATCHES "^(/)(.+)$") + set(binaryDirExportFileDir "_${CMAKE_MATCH_2}") + set(binaryDirExportsFile "${CURRENT_BINARY_DIR}/CMakeFiles/Export/${binaryDirExportFileDir}/${FILENAME}") + + if(EXISTS "${binaryDirExportsFile}") + file(READ "${installedExportsFile}" installedExportsFileContents) + file(READ "${binaryDirExportsFile}" binaryDirExportsFileContents) + + if(NOT "${installedExportsFileContents}" STREQUAL "${binaryDirExportsFileContents}") + + if("${FILENAME}" MATCHES "^(.+)(\\.cmake)$") + message(STATUS "Installed and new ${FILENAME} differ, removing installed ${CMAKE_MATCH_1}-*.cmake files") + file(GLOB files "${installDir}/${CMAKE_MATCH_1}-*.cmake") + file(REMOVE ${files}) + endif("${FILENAME}" MATCHES "^(.+)(\\.cmake)$") +# else(NOT "${installedExportsFileContents}" STREQUAL "${binaryDirExportsFileContents}") +# message(STATUS "FILES are the same") + endif(NOT "${installedExportsFileContents}" STREQUAL "${binaryDirExportsFileContents}") + + endif(EXISTS "${binaryDirExportsFile}") + endif (${INSTALL_DIR} MATCHES "^(/)(.+)$") + +endif(EXISTS "${installedExportsFile}") |