From cfe2823c09d987fff1cd540c218c73a53cfddfe0 Mon Sep 17 00:00:00 2001
From: Radovan Bast <bast@users.noreply.github.com>
Date: Wed, 29 Jul 2015 22:33:48 +0200
Subject: [PATCH] add possibility to pass options to cmake via setup.py

---
 test/extra_cmake_options/cmake/autocmake.cfg | 11 +++++++++++
 test/extra_cmake_options/src/CMakeLists.txt  | 13 +++++++++++++
 test/extra_cmake_options/src/example.cpp     |  7 +++++++
 test/test.py                                 |  7 +++++++
 update.py                                    |  3 +++
 5 files changed, 41 insertions(+)
 create mode 100644 test/extra_cmake_options/cmake/autocmake.cfg
 create mode 100644 test/extra_cmake_options/src/CMakeLists.txt
 create mode 100644 test/extra_cmake_options/src/example.cpp

diff --git a/test/extra_cmake_options/cmake/autocmake.cfg b/test/extra_cmake_options/cmake/autocmake.cfg
new file mode 100644
index 0000000..e35cf0c
--- /dev/null
+++ b/test/extra_cmake_options/cmake/autocmake.cfg
@@ -0,0 +1,11 @@
+[project]
+name: example
+
+[cxx]
+source: ../../../modules/cxx.cmake
+
+[default_build_paths]
+source: ../../../modules/default_build_paths.cmake
+
+[src]
+source: ../../../modules/src.cmake
diff --git a/test/extra_cmake_options/src/CMakeLists.txt b/test/extra_cmake_options/src/CMakeLists.txt
new file mode 100644
index 0000000..9fc7202
--- /dev/null
+++ b/test/extra_cmake_options/src/CMakeLists.txt
@@ -0,0 +1,13 @@
+# here we test setting -DENABLE_SOMETHING=OFF -DFOO=ON
+# setup.py script
+option(ENABLE_SOMETHING "Enable something" ON)
+option(ENABLE_FOO "Enable FOO" OFF)
+
+if(ENABLE_SOMETHING)
+    message(FATAL_ERROR "This test failed")
+endif()
+if(NOT ENABLE_FOO)
+    message(FATAL_ERROR "This test failed")
+endif()
+
+add_executable(example example.cpp)
diff --git a/test/extra_cmake_options/src/example.cpp b/test/extra_cmake_options/src/example.cpp
new file mode 100644
index 0000000..4dd9d62
--- /dev/null
+++ b/test/extra_cmake_options/src/example.cpp
@@ -0,0 +1,7 @@
+#include <iostream>
+
+int main()
+{
+    std::cout << "Hello World!";
+    return 0;
+}
diff --git a/test/test.py b/test/test.py
index 6bd21e3..471d437 100644
--- a/test/test.py
+++ b/test/test.py
@@ -114,6 +114,13 @@ def test_cxx_custom():
 # ------------------------------------------------------------------------------
 
 
+def test_extra_cmake_options():
+    stdout, stderr = configure_build_and_exe('extra_cmake_options', 'python setup.py --cxx=g++ --cmake-options="-DENABLE_SOMETHING=OFF -DENABLE_FOO=ON"')
+    assert 'Hello World!' in stdout
+
+# ------------------------------------------------------------------------------
+
+
 def test_cxx():
     stdout, stderr = configure_build_and_exe('cxx', 'python setup.py --cxx=g++')
     assert 'Hello World!' in stdout
diff --git a/update.py b/update.py
index 5e6a71f..44dc9b0 100755
--- a/update.py
+++ b/update.py
@@ -102,6 +102,8 @@ def gen_cmake_command(config):
 
     s.append("    command.append('-DCMAKE_BUILD_TYPE=%s' % arguments['--type'])")
     s.append("    command.append('-G \"%s\"' % arguments['--generator'])")
+    s.append("    for word in arguments['--cmake-options'].split():")
+    s.append("        command.append('%s' % word)")
 
     s.append("\n    return ' '.join(command)")
 
@@ -151,6 +153,7 @@ def gen_setup(config, relative_path):
     options.append(['--type=<TYPE>', 'Set the CMake build type (debug, release, or relwithdeb) [default: release].'])
     options.append(['--generator=<STRING>', 'Set the CMake build system generator [default: Unix Makefiles].'])
     options.append(['--show', 'Show CMake command and exit.'])
+    options.append(['--cmake-options=<OPTIONS>', 'Define options to CMake [default: None].'])
     options.append(['<builddir>', 'Build directory.'])
     options.append(['-h --help', 'Show this screen.'])