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, 61 insertions, 0 deletions

diff --git a/scripts/install_deps.bat b/scripts/install_deps.bat
new file mode 100644
index 00000000..512a28df
--- /dev/null
+++ b/scripts/install_deps.bat
@@ -0,0 +1,61 @@
+@ECHO OFF
+
+REM ---------------------------------------------------------------------------
+REM Batch file for installing pre-requisite packages for solidity on
+REM Windows platforms.  That is implemented using CMake targets which
+REM extract pre-built ZIPs hosted on GitHub into "deps\install_deps".
+REM
+REM See https://github.com/ethereum/cpp-dependencies
+REM
+REM The CMake files then point into that directory as an alternative
+REM to the Homebrew, PPA or other global package server locations
+REM available on Linux and UNIX platforms.
+REM
+REM The lack of a standard C++ packaging system for Windows is problematic
+REM for us, and we have considered various options for improving the
+REM situation, such as the following:
+REM
+REM     See "Windows - Add support for Chocolatey packages"
+REM     https://github.com/ethereum/webthree-umbrella/issues/345
+REM
+REM     See "Windows - Try to use NuGet C++ packages"
+REM     https://github.com/ethereum/webthree-umbrella/issues/509
+REM
+REM     See "CM - Can we switch to NuGet delivery for our external dependencies"
+REM     https://github.com/ethereum/webthree-umbrella/issues/376
+REM
+REM Another possible option, which would benefit build robustness on
+REM multiple platforms, not just Windows, is to add dependencies as
+REM git-submodules (or downloading on demand) so that we aren'targets
+REM depend on platform-specific packaging systems at all.  We have
+REM already done just that for LLVM within evmjit.  The downside of
+REM that approach is that those dependencies then need to be
+REM built-from-source, which adds time to the build process.  It
+REM gives us an unbeatable degree of control, though, because we
+REM then perfectly control versioning and build flags for the binaries
+REM for those packages.
+REM
+REM The documentation for solidity is hosted at:
+REM
+REM http://solidity.readthedocs.org
+REM
+REM ---------------------------------------------------------------------------
+REM This file is part of solidity.
+REM
+REM solidity is free software: you can redistribute it and/or modify
+REM it under the terms of the GNU General Public License as published by
+REM the Free Software Foundation, either version 3 of the License, or
+REM (at your option) any later version.
+REM
+REM solidity is distributed in the hope that it will be useful,
+REM but WITHOUT ANY WARRANTY; without even the implied warranty of
+REM MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+REM GNU General Public License for more details.
+REM
+REM You should have received a copy of the GNU General Public License
+REM along with solidity.  If not, see <http://www.gnu.org/licenses/>
+REM
+REM Copyright (c) 2016 solidity contributors.
+REM ---------------------------------------------------------------------------
+
+cmake -P deps\install_deps.cmake