From c97abc96882caab6cba49f6ab1b00ceb88b5a757 Mon Sep 17 00:00:00 2001
From: Johnny Jazeix <jazeix@gmail.com>
Date: Fri, 25 Oct 2019 12:08:58 +0200
Subject: CPack/NSIS: Add option for custom Uninstall filename

Fixes: #10728
---
 Help/cpack_gen/nsis.rst                          | 5 +++++
 Help/release/dev/cpack-nsis-uninstaller-name.rst | 6 ++++++
 Modules/CPack.cmake                              | 2 ++
 Modules/Internal/CPack/NSIS.template.in          | 8 ++++----
 4 files changed, 17 insertions(+), 4 deletions(-)
 create mode 100644 Help/release/dev/cpack-nsis-uninstaller-name.rst

diff --git a/Help/cpack_gen/nsis.rst b/Help/cpack_gen/nsis.rst
index cd2aea6..38676c4 100644
--- a/Help/cpack_gen/nsis.rst
+++ b/Help/cpack_gen/nsis.rst
@@ -128,3 +128,8 @@ on Windows Nullsoft Scriptable Install System.
   set(CPACK_NSIS_MENU_LINKS
       "doc/cmake-@CMake_VERSION_MAJOR@.@CMake_VERSION_MINOR@/cmake.html"
       "CMake Help" "https://cmake.org" "CMake Web Site")
+
+.. variable:: CPACK_NSIS_UNINSTALL_NAME
+
+ Specify the name of the program to uninstall the version.
+ Default is ``Uninstall``.
diff --git a/Help/release/dev/cpack-nsis-uninstaller-name.rst b/Help/release/dev/cpack-nsis-uninstaller-name.rst
new file mode 100644
index 0000000..b7ceb4c
--- /dev/null
+++ b/Help/release/dev/cpack-nsis-uninstaller-name.rst
@@ -0,0 +1,6 @@
+cpack-nsis-uninstaller-name
+---------------------------
+
+* The :cpack_gen:`CPack NSIS Generator` now supports
+  :variable:`CPACK_NSIS_UNINSTALL_NAME`.
+  This can be used to specify the name of the Uninstall program.
diff --git a/Modules/CPack.cmake b/Modules/CPack.cmake
index 1809846..c912a0a 100644
--- a/Modules/CPack.cmake
+++ b/Modules/CPack.cmake
@@ -688,6 +688,8 @@ endif()
 # value of CPACK_NSIS_PACKAGE_NAME  instead
 # of CPACK_PACKAGE_INSTALL_DIRECTORY
 _cpack_set_default(CPACK_NSIS_DISPLAY_NAME "${CPACK_PACKAGE_INSTALL_DIRECTORY}")
+# Specify the name of the Uninstall file in NSIS
+_cpack_set_default(CPACK_NSIS_UNINSTALL_NAME "Uninstall")
 
 if(CPACK_NSIS_DISPLAY_NAME_SET)
   _cpack_set_default(CPACK_NSIS_PACKAGE_NAME "${CPACK_NSIS_DISPLAY_NAME}")
diff --git a/Modules/Internal/CPack/NSIS.template.in b/Modules/Internal/CPack/NSIS.template.in
index f75ae78..c1db769 100644
--- a/Modules/Internal/CPack/NSIS.template.in
+++ b/Modules/Internal/CPack/NSIS.template.in
@@ -642,7 +642,7 @@ Section "-Core installation"
   WriteRegStr SHCTX "Software\@CPACK_PACKAGE_VENDOR@\@CPACK_PACKAGE_INSTALL_REGISTRY_KEY@" "" $INSTDIR
 
   ;Create uninstaller
-  WriteUninstaller "$INSTDIR\Uninstall.exe"
+  WriteUninstaller "$INSTDIR\@CPACK_NSIS_UNINSTALL_NAME@.exe"
   Push "DisplayName"
   Push "@CPACK_NSIS_DISPLAY_NAME@"
   Call ConditionalAddToRegisty
@@ -653,7 +653,7 @@ Section "-Core installation"
   Push "@CPACK_PACKAGE_VENDOR@"
   Call ConditionalAddToRegisty
   Push "UninstallString"
-  Push "$INSTDIR\Uninstall.exe"
+  Push "$INSTDIR\@CPACK_NSIS_UNINSTALL_NAME@.exe"
   Call ConditionalAddToRegisty
   Push "NoRepair"
   Push "1"
@@ -690,7 +690,7 @@ Section "-Core installation"
   CreateDirectory "$SMPROGRAMS\$STARTMENU_FOLDER"
 @CPACK_NSIS_CREATE_ICONS@
 @CPACK_NSIS_CREATE_ICONS_EXTRA@
-  CreateShortCut "$SMPROGRAMS\$STARTMENU_FOLDER\Uninstall.lnk" "$INSTDIR\Uninstall.exe"
+  CreateShortCut "$SMPROGRAMS\$STARTMENU_FOLDER\Uninstall.lnk" "$INSTDIR\@CPACK_NSIS_UNINSTALL_NAME@.exe"
 
   ;Read a value from an InstallOptions INI file
   !insertmacro MUI_INSTALLOPTIONS_READ $DO_NOT_ADD_TO_PATH "NSIS.InstallOptions.ini" "Field 2" "State"
@@ -829,7 +829,7 @@ Section "Uninstall"
 !endif
 
   ;Remove the uninstaller itself.
-  Delete "$INSTDIR\Uninstall.exe"
+  Delete "$INSTDIR\@CPACK_NSIS_UNINSTALL_NAME@.exe"
   DeleteRegKey SHCTX "Software\Microsoft\Windows\CurrentVersion\Uninstall\@CPACK_PACKAGE_INSTALL_REGISTRY_KEY@"
 
   ;Remove the installation directory if it is empty.
-- 
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