1 files changed, 48 insertions, 0 deletions
diff --git a/cmake/opentrack-clean-build-directory.cmake b/cmake/opentrack-clean-build-directory.cmake
new file mode 100644
index 00000000..13c3c282
--- /dev/null
+++ b/cmake/opentrack-clean-build-directory.cmake
@@ -0,0 +1,48 @@
+function(cleanup_install_dir)
+    if(NOT $ENV{USERNAME} STREQUAL "sthalik")
+        message(WARNING "you can't run this potentially destructive function")
+        message(FATAL_ERROR "if you're sure, remove this line")
+    endif()
+
+    file(GLOB_RECURSE files LIST_DIRECTORIES TRUE RELATIVE "${CMAKE_BINARY_DIR}" "*")
+
+    set(files_ "")
+
+    set(got-install FALSE)
+    set(got-install-file FALSE)
+    set(got-cache FALSE)
+
+    foreach(i ${files})
+        if (i STREQUAL "install")
+            set(got-install TRUE)
+            continue()
+        endif()
+
+        string(FIND "${i}" "install/" pos)
+
+        if(pos GREATER -1)
+            set(got-install-file TRUE)
+            continue()
+        endif()
+
+        if(i STREQUAL "CMakeCache.txt")
+            set(got-cache TRUE)
+            continue()
+        endif()
+
+        list(APPEND files_ "${CMAKE_BINARY_DIR}/${i}")
+    endforeach()
+
+    unset(files)
+
+    if(NOT got-cache OR NOT got-install OR NOT got-install-file)
+        message(FATAL_ERROR "")
+    endif()
+
+    # let's hope nothing bad happens
+    file(REMOVE_RECURSE ${files_})
+
+    execute_process(COMMAND cmake . WORKING_DIRECTORY "${CMAKE_BINARY_DIR}" OUTPUT_QUIET)
+endfunction()
+
+cleanup_install_dir()