From e7ed76bd12ab6cb022b4c011fa706eae69ad77f8 Mon Sep 17 00:00:00 2001
From: nightwalker-87 <15526941+Nightwalker-87@users.noreply.github.com>
Date: Sun, 5 Apr 2020 18:01:49 +0200
Subject: [PATCH] Added cmake uninstall target

(Fixes #619)
---
 CMakeLists.txt           | 15 +++++++++++++++
 cmake_uninstall.cmake.in | 21 +++++++++++++++++++++
 2 files changed, 36 insertions(+)
 create mode 100644 cmake_uninstall.cmake.in

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5d5dab7..df5033f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -245,3 +245,18 @@ add_subdirectory(tests)
 
 include(cmake/cpack_config.cmake)
 include(CPack)
+
+
+###
+# Uninstall target
+###
+
+if (NOT TARGET uninstall)
+    configure_file(
+        "${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
+        "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
+        IMMEDIATE @ONLY
+    )
+    add_custom_target(uninstall
+        COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
+endif ()
diff --git a/cmake_uninstall.cmake.in b/cmake_uninstall.cmake.in
new file mode 100644
index 0000000..ed17c45
--- /dev/null
+++ b/cmake_uninstall.cmake.in
@@ -0,0 +1,21 @@
+if(NOT EXISTS "@CMAKE_BINARY_DIR@/install_manifest.txt")
+    message(FATAL_ERROR "Cannot find install manifest: @CMAKE_BINARY_DIR@/install_manifest.txt")
+endif()
+
+file(READ "@CMAKE_BINARY_DIR@/install_manifest.txt" files)
+string(REGEX REPLACE "\n" ";" files "${files}")
+foreach (file ${files})
+    message(STATUS "Uninstalling $ENV{DESTDIR}${file}")
+    if (IS_SYMLINK "$ENV{DESTDIR}${file}" OR EXISTS "$ENV{DESTDIR}${file}")
+        exec_program("@CMAKE_COMMAND@"
+            ARGS "-E remove \"$ENV{DESTDIR}${file}\""
+            OUTPUT_VARIABLE rm_out
+            RETURN_VALUE rm_retval
+        )
+        if (NOT "${rm_retval}" STREQUAL 0)
+            message(FATAL_ERROR "Problem when removing $ENV{DESTDIR}${file}")
+        endif ()
+    else (IS_SYMLINK "$ENV{DESTDIR}${file}" OR EXISTS "$ENV{DESTDIR}${file}")
+        message(STATUS "File $ENV{DESTDIR}${file} does not exist.")
+    endif ()
+endforeach ()