From e58534ab5a7ecb1e3648338df9c616ba82fd6f0c Mon Sep 17 00:00:00 2001
From: Piotr Dziwinski <piotrdz@gmail.com>
Date: Sat, 17 Oct 2015 18:08:51 +0200
Subject: [PATCH] Change behavior of generating translations

 - translations are now generated by default with Python as required
   dependency
 - old behavior of installing only English files is provided as an
   option (configure with -DTRANSLATIONS=0)
---
 CMakeLists.txt        | 8 +++++---
 help/CMakeLists.txt   | 8 +++++---
 levels/CMakeLists.txt | 8 ++++----
 3 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7fea2bfc..66378c55 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,9 +1,11 @@
 cmake_minimum_required(VERSION 2.8)
 
-find_package(PythonInterp 2.7)
+option(TRANSLATIONS "Enable translations of help and level files" ON)
 
-if(NOT PYTHONINTERP_FOUND)
-    message(WARNING "Python not found, help and level files will NOT be translated!")
+if(TRANSLATIONS)
+    find_package(PythonInterp 2.7 REQUIRED)
+else()
+    message(STATUS "Translations disabled; only English files will be installed")
 endif()
 
 if(NOT DEFINED COLOBOT_INSTALL_DATA_DIR)
diff --git a/help/CMakeLists.txt b/help/CMakeLists.txt
index 3ff52821..cdcf47c4 100644
--- a/help/CMakeLists.txt
+++ b/help/CMakeLists.txt
@@ -9,12 +9,14 @@ set(HELP_INSTALL_DATA_DIR  ${COLOBOT_INSTALL_DATA_DIR}/help)
 ##
 function(add_help_category help_category_dir install_subdir)
 
-    message(STATUS "Adding translation targets for help/${help_category_dir}")
-
+    # Always install English files
     file(GLOB english_help_files ${help_category_dir}/E/*)
     install(FILES ${english_help_files} DESTINATION ${HELP_INSTALL_DATA_DIR}/E/${install_subdir})
 
-    if(PYTHONINTERP_FOUND)
+    # If translations are turned on, also generate translated files
+    if(TRANSLATIONS)
+        message(STATUS "Adding translation targets for help/${help_category_dir}")
+
         set(work_dir ${DATA_BINARY_DIR}/help-po/${help_category_dir})
         generate_translations(translated_help_files
                               "help"
diff --git a/levels/CMakeLists.txt b/levels/CMakeLists.txt
index edf43838..2a199d24 100644
--- a/levels/CMakeLists.txt
+++ b/levels/CMakeLists.txt
@@ -9,14 +9,14 @@ set(LEVEL_INSTALL_DATA_DIR ${COLOBOT_INSTALL_DATA_DIR}/levels)
 ##
 function(add_level_category level_category_dir)
 
-    message(STATUS "Adding translation targets for level/${level_category_dir}")
-
-    # Without Python, just install all files as they are
-    if(NOT PYTHONINTERP_FOUND)
+    # If translations are turned off, just install all files as they are
+    if(NOT TRANSLATIONS)
         install(DIRECTORY ${level_category_dir} DESTINATION ${LEVEL_INSTALL_DATA_DIR})
         return()
     endif()
 
+    message(STATUS "Adding translation targets for level/${level_category_dir}")
+
     add_chaptertitles(${level_category_dir})
 
     file(GLOB level_dirs RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} ${level_category_dir}/chapter*/level*)