Update vendored AddUninstallTarget.cmake to YCM v0.15.1 version

cmake/AddUninstallTarget.cmake

@@ -1,70 +1,92 @@
-#.rst:
-# AddUninstallTarget
-# ------------------
-#
-# Add the "uninstall" target for your project::
-#
-#   include(AddUninstallTarget)
-#
-#
-# will create a file cmake_uninstall.cmake in the build directory and add a
-# custom target uninstall that will remove the files installed by your package
-# (using install_manifest.txt)
-
-#=============================================================================
-# Copyright 2008-2013 Kitware, Inc.
-# Copyright 2013 iCub Facility, Istituto Italiano di Tecnologia
-#   Authors: Daniele E. Domenichelli <daniele.domenichelli@iit.it>
-#
-# Distributed under the OSI-approved BSD License (the "License");
-# see accompanying file Copyright.txt for details.
-#
-# This software is distributed WITHOUT ANY WARRANTY; without even the
-# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-# See the License for more information.
-#=============================================================================
-# (To distribute this file outside of CMake, substitute the full
-#  License text for the above reference.)
-
-
-if(DEFINED __ADD_UNINSTALL_TARGET_INCLUDED)
+# SPDX-FileCopyrightText: 2012-2021 Istituto Italiano di Tecnologia (IIT)
+# SPDX-FileCopyrightText: 2008-2013 Kitware Inc.
+# SPDX-License-Identifier: BSD-3-Clause
+
+#[=======================================================================[.rst:
+AddUninstallTarget
+------------------
+
+Add the "uninstall" target for your project::
+
+  include(AddUninstallTarget)
+
+
+will create a file ``cmake_uninstall.cmake`` in the build directory and add a
+custom target ``uninstall`` (or ``UNINSTALL`` on Visual Studio and Xcode) that
+will remove the files installed by your package (using
+``install_manifest.txt``).
+See also
+https://gitlab.kitware.com/cmake/community/wikis/FAQ#can-i-do-make-uninstall-with-cmake
+
+The :module:`AddUninstallTarget` module must be included in your main
+``CMakeLists.txt``. If included in a subdirectory it does nothing.
+This allows you to use it safely in your main ``CMakeLists.txt`` and include
+your project using ``add_subdirectory`` (for example when using it with
+:cmake:module:`FetchContent`).
+
+If the ``uninstall`` target already exists, the module does nothing.
+#]=======================================================================]
+
+
+# AddUninstallTarget works only when included in the main CMakeLists.txt
+if(NOT "${CMAKE_CURRENT_BINARY_DIR}" STREQUAL "${CMAKE_BINARY_DIR}")
+  return()
+endif()
+
+# The name of the target is uppercase in MSVC and Xcode (for coherence with the
+# other standard targets)
+if("${CMAKE_GENERATOR}" MATCHES "^(Visual Studio|Xcode)")
+  set(_uninstall "UNINSTALL")
+else()
+  set(_uninstall "uninstall")
+endif()
+
+# If target is already defined don't do anything
+if(TARGET ${_uninstall})
   return()
 endif()
-set(__ADD_UNINSTALL_TARGET_INCLUDED TRUE)
 
 
-set(_filename ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
+set(_filename cmake_uninstall.cmake)
 
-file(WRITE ${_filename}
-  "if(NOT EXISTS \"${CMAKE_CURRENT_BINARY_DIR}/install_manifest.txt\")
-    message(WARNING \"Cannot find install manifest: \\\"${CMAKE_CURRENT_BINARY_DIR}/install_manifest.txt\\\"\")
-    return()
+file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/${_filename}"
+"if(NOT EXISTS \"${CMAKE_CURRENT_BINARY_DIR}/install_manifest.txt\")
+  message(WARNING \"Cannot find install manifest: \\\"${CMAKE_CURRENT_BINARY_DIR}/install_manifest.txt\\\"\")
+  return()
 endif()
 
 file(READ \"${CMAKE_CURRENT_BINARY_DIR}/install_manifest.txt\" files)
 string(STRIP \"\${files}\" files)
 string(REGEX REPLACE \"\\n\" \";\" files \"\${files}\")
 list(REVERSE files)
 foreach(file \${files})
+  if(IS_SYMLINK \"\$ENV{DESTDIR}\${file}\" OR EXISTS \"\$ENV{DESTDIR}\${file}\")
     message(STATUS \"Uninstalling: \$ENV{DESTDIR}\${file}\")
-    if(EXISTS \"\$ENV{DESTDIR}\${file}\")
-        execute_process(
-            COMMAND \${CMAKE_COMMAND} -E remove \"\$ENV{DESTDIR}\${file}\"
-            OUTPUT_VARIABLE rm_out
-            RESULT_VARIABLE rm_retval)
-        if(NOT \"\${rm_retval}\" EQUAL 0)
-            message(FATAL_ERROR \"Problem when removing \\\"\$ENV{DESTDIR}\${file}\\\"\")
-        endif()
-    else()
-        message(STATUS \"File \\\"\$ENV{DESTDIR}\${file}\\\" does not exist.\")
+    execute_process(
+      COMMAND \${CMAKE_COMMAND} -E remove \"\$ENV{DESTDIR}\${file}\"
+      OUTPUT_VARIABLE rm_out
+      RESULT_VARIABLE rm_retval)
+    if(NOT \"\${rm_retval}\" EQUAL 0)
+      message(FATAL_ERROR \"Problem when removing \\\"\$ENV{DESTDIR}\${file}\\\"\")
     endif()
+  else()
+    message(STATUS \"Not-found: \$ENV{DESTDIR}\${file}\")
+  endif()
 endforeach(file)
 ")
 
-if("${CMAKE_GENERATOR}" MATCHES "^(Visual Studio|Xcode)")
-  set(_uninstall "UNINSTALL")
+set(_desc "Uninstall the project...")
+if(CMAKE_GENERATOR STREQUAL "Unix Makefiles")
+  set(_comment COMMAND \$\(CMAKE_COMMAND\) -E cmake_echo_color --switch=$\(COLOR\) --cyan "${_desc}")
 else()
-  set(_uninstall "uninstall")
+  set(_comment COMMENT "${_desc}")
 endif()
-add_custom_target(${_uninstall} COMMAND "${CMAKE_COMMAND}" -P "${_filename}")
+add_custom_target(${_uninstall}
+                  ${_comment}
+                  COMMAND ${CMAKE_COMMAND} -P ${_filename}
+                  USES_TERMINAL
+                  BYPRODUCTS uninstall_byproduct
+                  WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
+set_property(SOURCE uninstall_byproduct PROPERTY SYMBOLIC 1)
+
 set_property(TARGET ${_uninstall} PROPERTY FOLDER "CMakePredefinedTargets")