Make the Solidity repository standalone.

This commit is the culmination of several months of work to decouple Solidity from the webthree-umbrella so that it can be developed in parallel with cpp-ethereum (the Ethereum C++ runtime) and so that even for the Solidity unit-tests there is no hard-dependency onto the C++ runtime.

The Tests-over-IPC refactoring was a major step in the same process which was already committed.

This commit contains the following changes:

- A subset of the CMake functionality in webthree-helpers was extracted and tailored for Solidity into ./cmake.   Further cleanup is certainly possible.
- A subset of the libdevcore functionality in libweb3core was extracted and tailored for Solidity into ./libdevcore.   Further cleanup is certainly possible
- The gas price constants in EVMSchedule were orphaned into libevmasm.
- Some other refactorings and cleanups were made to sever unnecessary EVM dependencies in the Solidity unit-tests.
- TravisCI and Appveyor support was added, covering builds and running of the unit-tests (Linux and macOS only for now)
- A bug-fix was made to get the Tests-over-IPC running on macOS.
- There are still reliability issues in the unit-tests, which need immediate attention.    The Travis build has been flipped to run the unit-tests 5 times, to try to flush these out.
- The Emscripten automation which was previously in webthree-umbrella was merged into the TravisCI automation here.
- The development ZIP deployment step has been commented out, but we will want to read that ONLY for release branch.

Further iteration on these changes will definitely be needed, but I feel these have got to sufficient maturity than holding them back further isn't winning us anything.    It is go time :-)

1 files changed, 136 insertions, 0 deletions

diff --git a/cmake/EthDependencies.cmake b/cmake/EthDependencies.cmake
new file mode 100644
index 00000000..72585d11
--- /dev/null
+++ b/cmake/EthDependencies.cmake
@@ -0,0 +1,136 @@
+# all dependencies that are not directly included in the cpp-ethereum distribution are defined here
+# for this to work, download the dependency via the cmake script in extdep or install them manually!
+
+function(eth_show_dependency DEP NAME)
+	get_property(DISPLAYED GLOBAL PROPERTY ETH_${DEP}_DISPLAYED)
+	if (NOT DISPLAYED)
+		set_property(GLOBAL PROPERTY ETH_${DEP}_DISPLAYED TRUE)
+		message(STATUS "${NAME} headers: ${${DEP}_INCLUDE_DIRS}")
+		message(STATUS "${NAME} lib   : ${${DEP}_LIBRARIES}")
+		if (NOT("${${DEP}_DLLS}" STREQUAL ""))
+			message(STATUS "${NAME} dll   : ${${DEP}_DLLS}")
+		endif()
+	endif()
+endfunction()
+
+if (DEFINED MSVC)
+	# by defining CMAKE_PREFIX_PATH variable, cmake will look for dependencies first in our own repository before looking in system paths like /usr/local/ ...
+	# this must be set to point to the same directory as $ETH_DEPENDENCY_INSTALL_DIR in /extdep directory
+
+	if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 19.0.0)
+		set (ETH_DEPENDENCY_INSTALL_DIR "${CMAKE_CURRENT_LIST_DIR}/../extdep/install/windows/x64")
+	else()
+		get_filename_component(DEPS_DIR "${CMAKE_CURRENT_LIST_DIR}/../deps/install" ABSOLUTE)
+		set(ETH_DEPENDENCY_INSTALL_DIR
+			"${DEPS_DIR}/x64"					# Old location for deps.
+			"${DEPS_DIR}/win64"					# New location for deps.
+			"${DEPS_DIR}/win64/Release/share"	# LLVM shared cmake files.
+		)
+	endif()
+	set (CMAKE_PREFIX_PATH ${ETH_DEPENDENCY_INSTALL_DIR} ${CMAKE_PREFIX_PATH})
+endif()
+
+# custom cmake scripts
+set(ETH_CMAKE_DIR ${CMAKE_CURRENT_LIST_DIR})
+set(ETH_SCRIPTS_DIR ${ETH_CMAKE_DIR}/scripts)
+
+find_program(CTEST_COMMAND ctest)
+
+#message(STATUS "CMAKE_PREFIX_PATH ${CMAKE_PREFIX_PATH}")
+#message(STATUS "CMake Helper Path: ${ETH_CMAKE_DIR}")
+#message(STATUS "CMake Script Path: ${ETH_SCRIPTS_DIR}")
+#message(STATUS "ctest path: ${CTEST_COMMAND}")
+
+## use multithreaded boost libraries, with -mt suffix
+set(Boost_USE_MULTITHREADED ON)
+
+if (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
+
+# use static boost libraries *.lib
+	set(Boost_USE_STATIC_LIBS ON)
+
+elseif (APPLE)
+
+# use static boost libraries *.a
+	set(Boost_USE_STATIC_LIBS ON)
+
+elseif (UNIX)
+# use dynamic boost libraries *.dll
+	set(Boost_USE_STATIC_LIBS OFF)
+
+endif()
+
+set(STATIC_LINKING FALSE CACHE BOOL "Build static binaries")
+
+if (STATIC_LINKING)
+
+	set(Boost_USE_STATIC_LIBS ON)
+	set(Boost_USE_STATIC_RUNTIME ON)
+
+	set(OpenSSL_USE_STATIC_LIBS ON)
+
+	if (MSVC)
+		# TODO - Why would we need .a on Windows?  Maybe some Cygwin-ism.
+		# When I work through Windows static linkage, I will remove this,
+		# if that is possible.
+		set(CMAKE_FIND_LIBRARY_SUFFIXES .lib .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
+	elseif (APPLE)
+		# At the time of writing, we are still only PARTIALLY statically linked
+		# on OS X, with a mixture of statically linked external libraries where
+		# those are available, and dynamically linked where that is the only
+		# option we have.    Ultimately, the aim would be for everything except
+		# the runtime libraries to be statically linked.
+		#
+		# Still TODO:
+		# - jsoncpp
+		# - json-rpc-cpp
+		# - leveldb (which pulls in snappy, for the dylib at ;east)
+		# - miniupnp
+		# - gmp
+		#
+		# Two further libraries (curl and zlib) ship as dylibs with the platform
+		# but again we could build from source and statically link these too.
+		set(CMAKE_FIND_LIBRARY_SUFFIXES .a .dylib)
+	else()
+		set(CMAKE_FIND_LIBRARY_SUFFIXES .a)
+	endif()
+
+	set(ETH_STATIC ON)
+endif()
+
+find_package(Boost 1.54.0 QUIET REQUIRED COMPONENTS thread date_time system regex chrono filesystem unit_test_framework program_options random)
+
+eth_show_dependency(Boost boost)
+
+if (APPLE)
+	link_directories(/usr/local/lib)
+	include_directories(/usr/local/include)
+endif()
+
+include_directories(BEFORE "${PROJECT_BINARY_DIR}/include")
+
+function(eth_use TARGET REQUIRED)
+	if (NOT TARGET ${TARGET})
+		message(FATAL_ERROR "eth_use called for non existing target ${TARGET}")
+	endif()
+
+	if (TARGET ${PROJECT_NAME}_BuildInfo.h)
+		add_dependencies(${TARGET} ${PROJECT_NAME}_BuildInfo.h)
+	endif()
+
+	foreach(MODULE ${ARGN})
+		string(REPLACE "::" ";" MODULE_PARTS ${MODULE})
+		list(GET MODULE_PARTS 0 MODULE_MAIN)
+		list(LENGTH MODULE_PARTS MODULE_LENGTH)
+		if (MODULE_LENGTH GREATER 1)
+			list(GET MODULE_PARTS 1 MODULE_SUB)
+		endif()
+		# TODO: check if file exists if not, throws FATAL_ERROR with detailed description
+		get_target_property(TARGET_APPLIED ${TARGET} TARGET_APPLIED_${MODULE_MAIN}_${MODULE_SUB})
+		if (NOT TARGET_APPLIED)
+			include(Use${MODULE_MAIN})
+			set_target_properties(${TARGET} PROPERTIES TARGET_APPLIED_${MODULE_MAIN}_${MODULE_SUB} TRUE)
+			eth_apply(${TARGET} ${REQUIRED} ${MODULE_SUB})
+		endif()
+	endforeach()
+endfunction()