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 :-)

.gitignore

@@ -34,3 +34,7 @@ docs/utils/__pycache__
 
 # vim stuff
 *.swp
+
+# IDE files
+.idea
+browse.VC.db

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "deps"]
+	path = deps
+	url = https://github.com/ethereum/cpp-dependencies

.travis.yml

@@ -1,15 +1,125 @@
+#------------------------------------------------------------------------------
+# TravisCI configuration file for solidity.
+#
+# The documentation for solidity is hosted at:
+#
+# http://solidity.readthedocs.org
+#
+# TODO - Merge with .travis.yml file which currently lives in the root of
+# webthree-umbrella, but actually contains the automation for the Solidity
+# Emscripten build, which will also need consolidating into here somehow.
+#
+# See https://github.com/ethereum/webthree-umbrella/blob/develop/.travis.yml
+#
+# ------------------------------------------------------------------------------
+# This file is part of cpp-ethereum.
+#
+# cpp-ethereum is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# cpp-ethereum is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>
+#
+# (c) 2016 cpp-ethereum contributors.
+#------------------------------------------------------------------------------
+
 language: cpp
-cache: ccache
+branches:
+    only:
+        - develop
+        - release
+        - standalone
+    except:
+        - /develop-v[0-9]/
 matrix:
     include:
         - os: linux
           dist: trusty
           sudo: required
-          env: TRAVIS_BUILD_TYPE=Debug
+          compiler: gcc
+          services:
+              - docker
+          before_install:
+              - docker pull trzeci/emscripten:sdk-tag-1.35.4-64bit
+          env:
+              - TRAVIS_BUILD_TYPE=RelWithDebInfo
+              - ZIP_SUFFIX=ubuntu-trusty
+        - os: osx
+          osx_image: beta-xcode6.2
+          env:
+              - TRAVIS_BUILD_TYPE=RelWithDebInfo
+              - ZIP_SUFFIX=osx-mavericks
+        - os: osx
+          osx_image: xcode7.1
+          env:
+              - TRAVIS_BUILD_TYPE=RelWithDebInfo
+              - ZIP_SUFFIX=osx-yosemite
         - os: osx
           osx_image: xcode7.3
-          env: TRAVIS_BUILD_TYPE=Debug
+          env:
+              # The use of Debug config here ONLY for El Capitan is a workaround for "The Heisenbug"
+              # See https://github.com/ethereum/webthree-umbrella/issues/565
+              - TRAVIS_BUILD_TYPE=Debug
+              - ZIP_SUFFIX=osx-elcapitan
 git:
     depth: 2
-before_install: ./install_dependencies.sh
-script: ./fetch_umbrella_build_and_test.sh
+install:
+    - ./scripts/install_deps.sh
+before_script:
+    - ./scripts/build_emscripten.sh
+    - mkdir -p build
+      && cd build
+      && cmake .. -DCMAKE_BUILD_TYPE=$TRAVIS_BUILD_TYPE
+      && make -j2
+      && cd ..
+      && ./scripts/release.sh $ZIP_SUFFIX
+script:
+    # There are a variety of reliability issues with the Solidity unit-tests at the time of
+    # writing, so we're actually running them 5 times in a row, to try to flush all of these
+    # issues out as quickly as possible.  See https://github.com/ethereum/solidity/issues/769    
+    - cd $TRAVIS_BUILD_DIR && ./scripts/tests.sh
+    - cd $TRAVIS_BUILD_DIR && ./scripts/tests.sh
+    - cd $TRAVIS_BUILD_DIR && ./scripts/tests.sh
+    - cd $TRAVIS_BUILD_DIR && ./scripts/tests.sh
+    - cd $TRAVIS_BUILD_DIR && ./scripts/tests.sh
+after_success:
+    - cd $TRAVIS_BUILD_DIR && ./scripts/docs.sh
+env:
+    global:
+        - ENCRYPTION_LABEL="296c219a3f41"
+
+# This is the deploy target for the native build (Linux and macOS)
+# which generates development ZIPs per commit.  We are in agreement
+# that this is probably noisy overkill, so will want to renable this
+# functionality wrapped in some conditionals so that it only runs
+# when building the 'release' branch.
+#
+#deploy:
+#    provider: releases
+#    api_key:
+#        secure: 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
+#    file: $TRAVIS_BUILD_DIR/solidity-develop-$ZIP_SUFFIX.zip
+#    skip_cleanup: true
+#    on:
+#        repo: bobsummerwill/solidity
+#        branch: standalone_changes
+
+# This is the deploy target for the Emscripten build, which publishes
+# generated JS for particular Solidity commits into
+# https://github.com/ethereum/solc-bin/tree/gh-pages/bin
+# Disabled, but can be renamed when we have the "standalone" changes
+# published back into the 'develop' branch.
+#
+#deploy:
+#    provider: script
+#    script: scripts/travis-emscripten/publish_binary.sh
+#    skip_cleanup: true
+#    on:
+#        branch: develop

CMakeLists.txt

@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.0.0)
 
-set(ETH_CMAKE_DIR   "${CMAKE_CURRENT_LIST_DIR}/../webthree-helpers/cmake"   CACHE PATH "The the path to the cmake directory")
+set(ETH_CMAKE_DIR   "${CMAKE_CURRENT_LIST_DIR}/cmake"   CACHE PATH "The the path to the cmake directory")
 list(APPEND CMAKE_MODULE_PATH ${ETH_CMAKE_DIR})
 
 # Set cmake_policies
@@ -26,6 +26,7 @@ include(EthUtils)
 include(EthOptions)
 configure_project(TESTS)
 
+add_subdirectory(libdevcore)
 add_subdirectory(libevmasm)
 add_subdirectory(libsolidity)
 add_subdirectory(solc)

appveyor.yml

@@ -0,0 +1,76 @@
+#------------------------------------------------------------------------------
+# Appveyor configuration file for solidity.
+#
+# The documentation for solidity is hosted at:
+#
+# http://solidity.readthedocs.org
+#
+# TODO - Tests currently disabled, because Tests-over-IPC code is using UNIX
+# sockets unconditionally at the time of writing.
+#
+# ------------------------------------------------------------------------------
+# This file is part of cpp-ethereum.
+#
+# cpp-ethereum is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# cpp-ethereum is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>
+#
+# (c) 2016 cpp-ethereum contributors.
+#------------------------------------------------------------------------------
+
+version: 0.3.5.{build}
+skip_tags: true
+os: Visual Studio 2015
+configuration:
+    - RelWithDebInfo
+cache: build
+install:
+    - git submodule update --init --recursive
+    - scripts/install_deps.bat
+    - set ETHEREUM_DEPS_PATH=%APPVEYOR_BUILD_FOLDER%\deps\install
+before_build:
+    - if not exist build mkdir build
+    - cd build
+    - cmake -G "Visual Studio 14 2015 Win64" .. -DTESTS=Off
+build_script:
+    - msbuild solidity.sln /p:Configuration=%CONFIGURATION% /m:%NUMBER_OF_PROCESSORS% /v:minimal
+    - cd %APPVEYOR_BUILD_FOLDER%
+    - scripts\release.bat %CONFIGURATION%
+
+#test_script:
+#    - cd %APPVEYOR_BUILD_FOLDER%\build\test\%CONFIGURATION%
+#    - copy "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\redist\x86\Microsoft.VC140.CRT\msvc*.dll" .
+#    - eth.exe --test -d %TMP%/test
+#    - soltest.exe --ipc /tmp/test/geth.ipc
+#    - pkill eth
+
+artifacts:
+    - path: solidity-develop-windows.zip
+      name: solidity-develop-windows-zip
+
+# This is the deploy target for Windows
+# which generates development ZIPs per commit.  We are in agreement
+# that this is probably noisy overkill, so will want to renable this
+# functionality wrapped in some conditionals so that it only runs
+# when building the 'release' branch.
+#
+#deploy:
+#    release: solidity-develop-v$(APPVEYOR_BUILD_VERSION)
+#    tag: develop-v$(APPVEYOR_BUILD_VERSION)
+#    description: 'Development build of solidity at commit $(APPVEYOR_REPO_COMMIT).\n\n$(APPVEYOR_REPO_COMMIT_MESSAGE)\n\nCommitted by $(APPVEYOR_REPO_COMMIT_AUTHOR), $(APPVEYOR_REPO_COMMIT_TIMESTAMP).'
+#    prerelease: true
+#    provider: GitHub
+#    auth_token:
+#        secure: yukM9mHUbzuZSS5WSBLKSW0yGJerJEqAXkFhDhSHBBcKJE7GAryjQsdO9Kxh3yRv
+#    artifact: solidity-develop-windows-zip
+#    on:
+#        branch: standalone_changes

cmake/CMakeParseArguments.cmake

@@ -0,0 +1,161 @@
+#.rst:
+# CMakeParseArguments
+# -------------------
+#
+#
+#
+# CMAKE_PARSE_ARGUMENTS(<prefix> <options> <one_value_keywords>
+# <multi_value_keywords> args...)
+#
+# CMAKE_PARSE_ARGUMENTS() is intended to be used in macros or functions
+# for parsing the arguments given to that macro or function.  It
+# processes the arguments and defines a set of variables which hold the
+# values of the respective options.
+#
+# The <options> argument contains all options for the respective macro,
+# i.e.  keywords which can be used when calling the macro without any
+# value following, like e.g.  the OPTIONAL keyword of the install()
+# command.
+#
+# The <one_value_keywords> argument contains all keywords for this macro
+# which are followed by one value, like e.g.  DESTINATION keyword of the
+# install() command.
+#
+# The <multi_value_keywords> argument contains all keywords for this
+# macro which can be followed by more than one value, like e.g.  the
+# TARGETS or FILES keywords of the install() command.
+#
+# When done, CMAKE_PARSE_ARGUMENTS() will have defined for each of the
+# keywords listed in <options>, <one_value_keywords> and
+# <multi_value_keywords> a variable composed of the given <prefix>
+# followed by "_" and the name of the respective keyword.  These
+# variables will then hold the respective value from the argument list.
+# For the <options> keywords this will be TRUE or FALSE.
+#
+# All remaining arguments are collected in a variable
+# <prefix>_UNPARSED_ARGUMENTS, this can be checked afterwards to see
+# whether your macro was called with unrecognized parameters.
+#
+# As an example here a my_install() macro, which takes similar arguments
+# as the real install() command:
+#
+# ::
+#
+#    function(MY_INSTALL)
+#      set(options OPTIONAL FAST)
+#      set(oneValueArgs DESTINATION RENAME)
+#      set(multiValueArgs TARGETS CONFIGURATIONS)
+#      cmake_parse_arguments(MY_INSTALL "${options}" "${oneValueArgs}"
+#                            "${multiValueArgs}" ${ARGN} )
+#      ...
+#
+#
+#
+# Assume my_install() has been called like this:
+#
+# ::
+#
+#    my_install(TARGETS foo bar DESTINATION bin OPTIONAL blub)
+#
+#
+#
+# After the cmake_parse_arguments() call the macro will have set the
+# following variables:
+#
+# ::
+#
+#    MY_INSTALL_OPTIONAL = TRUE
+#    MY_INSTALL_FAST = FALSE (this option was not used when calling my_install()
+#    MY_INSTALL_DESTINATION = "bin"
+#    MY_INSTALL_RENAME = "" (was not used)
+#    MY_INSTALL_TARGETS = "foo;bar"
+#    MY_INSTALL_CONFIGURATIONS = "" (was not used)
+#    MY_INSTALL_UNPARSED_ARGUMENTS = "blub" (no value expected after "OPTIONAL"
+#
+#
+#
+# You can then continue and process these variables.
+#
+# Keywords terminate lists of values, e.g.  if directly after a
+# one_value_keyword another recognized keyword follows, this is
+# interpreted as the beginning of the new option.  E.g.
+# my_install(TARGETS foo DESTINATION OPTIONAL) would result in
+# MY_INSTALL_DESTINATION set to "OPTIONAL", but MY_INSTALL_DESTINATION
+# would be empty and MY_INSTALL_OPTIONAL would be set to TRUE therefor.
+
+#=============================================================================
+# Copyright 2010 Alexander Neundorf <[email protected]>
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+# (To distribute this file outside of CMake, substitute the full
+#  License text for the above reference.)
+
+
+if(__CMAKE_PARSE_ARGUMENTS_INCLUDED)
+  return()
+endif()
+set(__CMAKE_PARSE_ARGUMENTS_INCLUDED TRUE)
+
+
+function(CMAKE_PARSE_ARGUMENTS prefix _optionNames _singleArgNames _multiArgNames)
+  # first set all result variables to empty/FALSE
+  foreach(arg_name ${_singleArgNames} ${_multiArgNames})
+    set(${prefix}_${arg_name})
+  endforeach()
+
+  foreach(option ${_optionNames})
+    set(${prefix}_${option} FALSE)
+  endforeach()
+
+  set(${prefix}_UNPARSED_ARGUMENTS)
+
+  set(insideValues FALSE)
+  set(currentArgName)
+
+  # now iterate over all arguments and fill the result variables
+  foreach(currentArg ${ARGN})
+    list(FIND _optionNames "${currentArg}" optionIndex)  # ... then this marks the end of the arguments belonging to this keyword
+    list(FIND _singleArgNames "${currentArg}" singleArgIndex)  # ... then this marks the end of the arguments belonging to this keyword
+    list(FIND _multiArgNames "${currentArg}" multiArgIndex)  # ... then this marks the end of the arguments belonging to this keyword
+
+    if(${optionIndex} EQUAL -1  AND  ${singleArgIndex} EQUAL -1  AND  ${multiArgIndex} EQUAL -1)
+      if(insideValues)
+        if("${insideValues}" STREQUAL "SINGLE")
+          set(${prefix}_${currentArgName} ${currentArg})
+          set(insideValues FALSE)
+        elseif("${insideValues}" STREQUAL "MULTI")
+          list(APPEND ${prefix}_${currentArgName} ${currentArg})
+        endif()
+      else()
+        list(APPEND ${prefix}_UNPARSED_ARGUMENTS ${currentArg})
+      endif()
+    else()
+      if(NOT ${optionIndex} EQUAL -1)
+        set(${prefix}_${currentArg} TRUE)
+        set(insideValues FALSE)
+      elseif(NOT ${singleArgIndex} EQUAL -1)
+        set(currentArgName ${currentArg})
+        set(${prefix}_${currentArgName})
+        set(insideValues "SINGLE")
+      elseif(NOT ${multiArgIndex} EQUAL -1)
+        set(currentArgName ${currentArg})
+        set(${prefix}_${currentArgName})
+        set(insideValues "MULTI")
+      endif()
+    endif()
+
+  endforeach()
+
+  # propagate the result variables to the caller:
+  foreach(arg_name ${_singleArgNames} ${_multiArgNames} ${_optionNames})
+    set(${prefix}_${arg_name}  ${${prefix}_${arg_name}} PARENT_SCOPE)
+  endforeach()
+  set(${prefix}_UNPARSED_ARGUMENTS ${${prefix}_UNPARSED_ARGUMENTS} PARENT_SCOPE)
+
+endfunction()