From 0bb455041eed9907b2583e41376d5e6152e5f95a Mon Sep 17 00:00:00 2001
From: Georgi Gerganov <ggerganov@gmail.com>
Date: Sat, 23 Jan 2021 13:15:16 +0200
Subject: [PATCH] cmake : add python support

---
 .github/workflows/build.yml | 32 ++++++++++++++++++++++++++++++++
 CMakeLists.txt              | 26 ++++++++++++++++++++++++++
 tests/CMakeLists.txt        | 12 +++++++++++-
 tests/test-ggwave.py        |  7 +++++++
 4 files changed, 76 insertions(+), 1 deletion(-)
 create mode 100755 tests/test-ggwave.py

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 197f9ca..6ff32dd 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -30,6 +30,38 @@ jobs:
                 make
                 ctest
 
+    ubuntu-18_04-python:
+        runs-on: ubuntu-18.04
+
+        strategy:
+            matrix:
+                python-version: [2.7, 3.5, 3.6, 3.7, 3.8]
+
+        steps:
+            - name: Clone
+              uses: actions/checkout@v1
+              with:
+                  submodules: recursive
+
+            - name: Set up Python ${{ matrix.python-version }}
+              uses: actions/setup-python@v2
+              with:
+                  python-version: ${{ matrix.python-version }}
+
+            - name: Dependencies
+              run: |
+                  sudo apt-get update
+                  sudo apt-get install build-essential
+                  sudo apt-get install cmake;
+
+            - name: Configure
+              run: cmake . -DGGWAVE_SUPPORT_PYTHON=ON -DCMAKE_BUILD_TYPE=${{ matrix.build }}
+
+            - name: Build
+              run: |
+                make
+                ctest
+
     ubuntu-18_04-gcc-sanitized:
         runs-on: ubuntu-18.04
 
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 11b30b8..a3216d1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -33,6 +33,7 @@ option(GGWAVE_SANITIZE_ADDRESS        "ggwave: enable address sanitizer" OFF)
 option(GGWAVE_SANITIZE_UNDEFINED      "ggwave: enable undefined sanitizer" OFF)
 
 option(GGWAVE_SUPPORT_SDL2            "ggwave: support for libSDL2" ${GGWAVE_SUPPORT_SDL2_DEFAULT})
+option(GGWAVE_SUPPORT_PYTHON          "ggwave: support for python" OFF)
 
 option(GGWAVE_BUILD_TESTS             "ggwave: build examples" ${GGWAVE_STANDALONE})
 option(GGWAVE_BUILD_EXAMPLES          "ggwave: build examples" ${GGWAVE_STANDALONE})
@@ -71,6 +72,31 @@ endif()
 
 add_subdirectory(src)
 
+if (GGWAVE_SUPPORT_PYTHON)
+    file(GLOB_RECURSE GGWAVE_SOURCES "include/*" "src/*")
+
+    add_custom_command(
+        OUTPUT ${CMAKE_SOURCE_DIR}/bindings/python/ggwave.bycython.cpp
+        OUTPUT ${CMAKE_SOURCE_DIR}/bindings/python/ggwave
+        DEPENDS ${CMAKE_SOURCE_DIR}/bindings/python/Makefile
+        DEPENDS ${CMAKE_SOURCE_DIR}/bindings/python/ggwave.pyx
+        DEPENDS ${CMAKE_SOURCE_DIR}/bindings/python/cggwave.pxd
+        DEPENDS ${CMAKE_SOURCE_DIR}/bindings/python/setup.py
+        DEPENDS ${GGWAVE_SOURCES}
+        WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/bindings/python
+        COMMAND make clean
+        COMMAND make
+        COMMENT "Compiling Python module"
+        VERBATIM
+        )
+
+    add_custom_target(ggwave-py ALL
+        DEPENDS bindings/python/ggwave.bycython.cpp
+        DEPENDS bindings/python/ggwave
+        )
+endif()
+
+
 if (GGWAVE_BUILD_TESTS)
     enable_testing()
     add_subdirectory(tests)
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index d10ba4b..c5af84d 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -12,4 +12,14 @@ target_link_libraries(${TEST_TARGET} PRIVATE
     ggwave
     )
 
-add_test(NAME ${TEST_TARGET} COMMAND $<TARGET_FILE:${TEST_TARGET}>)
+add_test(NAME ${TEST_TARGET}-cpp COMMAND $<TARGET_FILE:${TEST_TARGET}>)
+
+if (GGWAVE_SUPPORT_PYTHON)
+    add_test(NAME ${TEST_TARGET}-py
+        COMMAND python test-ggwave.py
+        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+        )
+
+    set_tests_properties(${TEST_TARGET}-py
+        PROPERTIES ENVIRONMENT "PYTHONPATH=${PROJECT_SOURCE_DIR}/bindings/python")
+endif()
diff --git a/tests/test-ggwave.py b/tests/test-ggwave.py
new file mode 100755
index 0000000..f344181
--- /dev/null
+++ b/tests/test-ggwave.py
@@ -0,0 +1,7 @@
+import ggwave
+import numpy as np
+
+instance = ggwave.init()
+
+# generate audio waveform for string "hello python"
+waveform = ggwave.encode("hello python", txProtocolId = 1, volume = 20, instance = instance)