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From e5036fab19c11a09ab350761ec03f54aa5fcb70c Mon Sep 17 00:00:00 2001
From: David Seifert <soap@gentoo.org>
Date: Sun, 16 Aug 2020 19:54:18 +0200
Subject: [PATCH] Make BASH_COMPLETION_DIR user overridable

---
 CMakeLists.txt | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5feb2c0..1ab3f1a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -163,14 +163,22 @@ IF(NOT WIN32)
   # Removed - should be provided by libnitrokey
 
   # Install autocompletion scripts
-  set(PKG_GET_BASH_COMPLETION ${PKG_CONFIG_EXECUTABLE} --variable=completionsdir bash-completion)
-  execute_process(COMMAND ${PKG_GET_BASH_COMPLETION} RESULT_VARIABLE ERR OUTPUT_VARIABLE BASH_COMPLETION_DIR OUTPUT_STRIP_TRAILING_WHITESPACE)
-  IF(${ERR})
-    set(BASH_COMPLETION_DIR "etc/bash_completion.d")
+  set(BASH_COMPLETION_PATH "" CACHE STRING "Directory for installing bash autocompletion files. The default (empty) means we will try to autodetect it")
+
+  IF(BASH_COMPLETION_PATH STREQUAL "")
+    message(STATUS "Trying to autodetect bash autocompletion directory")
+    set(PKG_GET_BASH_COMPLETION ${PKG_CONFIG_EXECUTABLE} --variable=completionsdir bash-completion)
+    execute_process(COMMAND ${PKG_GET_BASH_COMPLETION} RESULT_VARIABLE ERR OUTPUT_VARIABLE BASH_COMPLETION_DIR OUTPUT_STRIP_TRAILING_WHITESPACE)
+    IF(${ERR})
+      set(BASH_COMPLETION_DIR "etc/bash_completion.d")
+    ENDIF()
+    string(REGEX REPLACE "^/" "" BASH_COMPLETION_DIR "${BASH_COMPLETION_DIR}")
+    string(REGEX REPLACE "^usr/" "" BASH_COMPLETION_DIR "${BASH_COMPLETION_DIR}") # usual prefix is usr/local
+    message(STATUS "Setting bash-completion dir to ${BASH_COMPLETION_DIR}")
+  ELSE()
+    message(STATUS "User-provided bash autocompletion directory: ${BASH_COMPLETION_PATH}")
+    set(BASH_COMPLETION_DIR ${BASH_COMPLETION_PATH})
   ENDIF()
-  string(REGEX REPLACE "^/" "" BASH_COMPLETION_DIR "${BASH_COMPLETION_DIR}")
-  string(REGEX REPLACE "^usr/" "" BASH_COMPLETION_DIR "${BASH_COMPLETION_DIR}") # usual prefix is usr/local
-  message(STATUS "Setting bash-completion dir to ${BASH_COMPLETION_DIR}")
 
   install(FILES
    ${CMAKE_SOURCE_DIR}/data/bash-autocomplete/nitrokey-app
-- 
2.28.0