From 1c0d20d58c788d9b2caa75fee653d40c2f568637 Mon Sep 17 00:00:00 2001
From: Jason Juang <jasjuang@users.noreply.github.com>
Date: Tue, 8 Aug 2017 22:01:09 -0700
Subject: [PATCH] add in make uninstall for cmake

Summary:
After sudo make install, it is quite cumbersome to remove the installed files manually.This change allows the user to simply type sudo make uninstall to remove all installed files.
Closes https://github.com/caffe2/caffe2/pull/748

Differential Revision: D5590971

Pulled By: Yangqing

fbshipit-source-id: b354640056c88b9975dd0cf195a6a4d8cad8d0ab
---
 CMakeLists.txt           | 11 +++++++++++
 cmake_uninstall.cmake.in | 26 ++++++++++++++++++++++++++
 2 files changed, 37 insertions(+)
 create mode 100644 cmake_uninstall.cmake.in

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 716cead74e1..41909723a7a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -142,3 +142,14 @@ add_subdirectory(caffe/proto)
 add_subdirectory(caffe2)
 
 Caffe2_print_configuration_summary()
+
+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
+      ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
+endif()
diff --git a/cmake_uninstall.cmake.in b/cmake_uninstall.cmake.in
new file mode 100644
index 00000000000..d00a5166581
--- /dev/null
+++ b/cmake_uninstall.cmake.in
@@ -0,0 +1,26 @@
+if(NOT EXISTS "@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt")
+  message(FATAL_ERROR "Cannot find install manifest: @CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt")
+endif(NOT EXISTS "@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt")
+
+if (NOT DEFINED CMAKE_INSTALL_PREFIX)
+  set (CMAKE_INSTALL_PREFIX "@CMAKE_INSTALL_PREFIX@")
+endif ()
+ message(${CMAKE_INSTALL_PREFIX})
+
+file(READ "@CMAKE_CURRENT_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(NOT "${rm_retval}" STREQUAL 0)
+  else(IS_SYMLINK "$ENV{DESTDIR}${file}" OR EXISTS "$ENV{DESTDIR}${file}")
+    message(STATUS "File $ENV{DESTDIR}${file} does not exist.")
+  endif(IS_SYMLINK "$ENV{DESTDIR}${file}" OR EXISTS "$ENV{DESTDIR}${file}")
+endforeach(file)