Added libdatachannel

CMakeLists.txt

@@ -1,37 +1,36 @@
 cmake_minimum_required(VERSION 3.16)
-# don't update VERSION here, its in the farm_ng_cmakeConfigVersion.cmake file
-project(farm_ng_cmake)
+# https://semver.org/
+project(farm_ng_all VERSION 0.0.1)
 
-# NOTE assumes that cmake is a flat directory
-file(GLOB FARM_NG_CMAKE_FILES "${CMAKE_CURRENT_SOURCE_DIR}/cmake/*")
-
-install(FILES
-    ${FARM_NG_CMAKE_FILES}
-    DESTINATION
-        share/farm_ng_cmake/cmake
+if(NOT "$ENV{VIRTUAL_ENV}/prefix" STREQUAL "$ENV{CMAKE_PREFIX_PATH}")
+  message(FATAL_ERROR "CMAKE_PREFIX_PATH does not match current VIRTUAL_ENV path.\n"
+    "ENV{CMAKE_PREFIX_PATH}: '$ENV{CMAKE_PREFIX_PATH}'\n"
+    "ENV{VIRTUAL_ENV}/prefix: '$ENV{VIRTUAL_ENV}/prefix'\n"
+    "Did you forget to activate your virtual environment before running cmake?\n"
+    "# If your venv doesn't exist yet, run:\n"
+    "> ${CMAKE_CURRENT_SOURCE_DIR}/bootstrap_venv.sh\n"
+    "# To active your existing VENV, run:\n"
+    "> source ${CMAKE_CURRENT_SOURCE_DIR}/venv/bin/activate\n"
+    "# If using an IDE, launch it from the terminal after activating.\n"
     )
-
-
-option(FARM_NG_DEV_BUILD Off)
-if(NOT FARM_NG_DEV_BUILD)
-    message(STATUS "To build farm-ng's development libraries:\n"
-    "cmake -DFARM_NG_DEV_BUILD=ON .")
-    return()
 endif()
 
-list(APPEND CMAKE_MODULE_PATH
-    ${CMAKE_CURRENT_LIST_DIR}/cmake)
-# here we build a c++ development environment
-include(ExternalProject)
-include(farm_ng_default_args)
+set(CMAKE_PREFIX_PATH $ENV{CMAKE_PREFIX_PATH} CACHE STRING "" FORCE)
+option(BUILD_FOR_AMIGA "Build only Amiga related components" OFF)
+if(BUILD_FOR_AMIGA)
+    message(STATUS "Building subset of project for Amiga platform")
+    set(FARM_NG_BUILD_TESTS=OFF)
+endif()
 
-include(External_fmt)
-include(External_expected)
-include(External_eigen)
-include(External_ceres)
-include(External_apriltag)
-include(External_cli11)
-include(External_boost)
-include(External_grpc)
-include(External_nlohmann_json)
 
+set(farm_ng_cmake_DIR ${CMAKE_CURRENT_SOURCE_DIR}/farm_ng_cmake/cmake)
+set(Pangolin_DIR ${CMAKE_CURRENT_BINARY_DIR}/Pangolin)
+find_package(farm_ng_cmake REQUIRED)
+add_subdirectory(farm_ng_core)
+add_subdirectory(Sophus)
+add_subdirectory(Pangolin)
+add_subdirectory(farm_ng_amiga)
+add_subdirectory(farm_ng_lk)
+if(NOT BUILD_FOR_AMIGA)
+add_subdirectory(farm_ng_spice)
+endif()

cmake/External_libdatachannel.cmake

@@ -0,0 +1,9 @@
+ExternalProject_Add(libdatachannel
+    GIT_REPOSITORY  "https://github.com/paullouisageneau/libdatachannel"
+    GIT_TAG "v0.18.3"
+    GIT_SHALLOW ON
+    PREFIX ${farm_ng_EXT_PREFIX}
+    CMAKE_ARGS
+    ${farm_ng_DEFAULT_ARGS}
+    -DCMAKE_BUILD_TYPE=Release
+    )