aerodynamic_analysis (schueltke): automatic LILI download

aerodynamic_analysis/CMakeLists.txt

@@ -65,6 +65,9 @@ if(BUILD_UNITTEST)
     add_subdirectory(test)
 endif()
 
+# Download LiftingLine
+add_subdirectory(LiftingLine)
+
 # Add the installation rules
 install(TARGETS ${MODULE_NAME} DESTINATION ${MODULE_NAME})
 install(FILES
@@ -75,6 +78,7 @@ install(FILES
 install(
     DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/LiftingLine
     DESTINATION ${MODULE_NAME}
+    PATTERN "*CMakeLists*" EXCLUDE
 )
 
 # Find and include all dependet libraries if dynamically linked

aerodynamic_analysis/LiftingLine/CMakeLists.txt

+# Set the project name
+project(LiftingLine)
+
+# Check operating system
+message(STATUS "Check operating system for Lifting Line download uri -> ${CMAKE_SYSTEM_NAME}")
+if(CMAKE_SYSTEM_NAME STREQUAL "Windows")
+    # set download URL
+    set(FILE_URL "https://ceras.ilr.rwth-aachen.de/tiki/tiki-download_file.php?fileId=74")
+    # set output file
+    set(OUTPUT_FILE "${CMAKE_CURRENT_SOURCE_DIR}/LIFTING_LINE_WINDOWS_64BIT.exe")
+else()
+    # set download URL
+    set(FILE_URL "https://ceras.ilr.rwth-aachen.de/tiki/tiki-download_file.php?fileId=76")
+    # set output file
+    set(OUTPUT_FILE "${CMAKE_CURRENT_SOURCE_DIR}/LIFTING_LINE_LINUX_64BIT")
+endif()
+
+# Check if the file exists
+if(NOT EXISTS ${OUTPUT_FILE})
+    # Download file
+    message(STATUS "Downloading Lifting Line ...") 
+    file(DOWNLOAD
+        ${FILE_URL}
+        ${OUTPUT_FILE}
+        SHOW_PROGRESS
+        STATUS DOWNLOAD_STATUS)
+
+    # Check download status status
+    list(GET DOWNLOAD_STATUS 0 STATUS_CODE)
+    list(GET DOWNLOAD_STATUS 1 STATUS_MESSAGE)
+
+    # Print the result of download status
+    if(STATUS_CODE EQUAL 0)
+        message(STATUS "File downloaded ${STATUS_MESSAGE} -> ${OUTPUT_FILE}")
+
+        # Update file rights on none windows systems
+        if(NOT CMAKE_SYSTEM_NAME STREQUAL "Windows")
+            message(STATUS "Changing file rights to --xr--r--")
+            file(CHMOD ${OUTPUT_FILE}
+                FILE_PERMISSIONS OWNER_EXECUTE GROUP_READ WORLD_READ)
+        endif()
+    else()
+        message(FATAL_ERROR "Download failed with message: ${STATUS_MESSAGE}")
+    endif()
+else()
+    message(STATUS "File already exists -> ${OUTPUT_FILE}, skipping download.")
+endif()