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authorBob Summerwill <bob@summerwill.net>2016-08-01 13:25:37 +0800
committerBob Summerwill <bob@summerwill.net>2016-08-01 16:45:11 +0800
commit4ee2114127f87b08b76b3ca94cde80a49cdc056a (patch)
treeb680926d0da4aadfddae0db9567557802f2c2929 /libdevcore/CommonIO.cpp
parent56727d61a61e1485c8360f00700d766632ec7163 (diff)
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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 :-)
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diff --git a/libdevcore/CommonIO.cpp b/libdevcore/CommonIO.cpp
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+/*
+ 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/>.
+*/
+/** @file CommonIO.cpp
+ * @author Gav Wood <i@gavwood.com>
+ * @date 2014
+ */
+
+#include "CommonIO.h"
+#include <iostream>
+#include <cstdlib>
+#include <fstream>
+#include <stdio.h>
+#if defined(_WIN32)
+#include <windows.h>
+#else
+#include <termios.h>
+#endif
+#include <boost/filesystem.hpp>
+#include "Exceptions.h"
+using namespace std;
+using namespace dev;
+
+
+template <typename _T>
+inline _T contentsGeneric(std::string const& _file)
+{
+ _T ret;
+ size_t const c_elementSize = sizeof(typename _T::value_type);
+ std::ifstream is(_file, std::ifstream::binary);
+ if (!is)
+ return ret;
+
+ // get length of file:
+ is.seekg(0, is.end);
+ streamoff length = is.tellg();
+ if (length == 0)
+ return ret; // do not read empty file (MSVC does not like it)
+ is.seekg(0, is.beg);
+
+ ret.resize((length + c_elementSize - 1) / c_elementSize);
+ is.read(const_cast<char*>(reinterpret_cast<char const*>(ret.data())), length);
+ return ret;
+}
+
+string dev::contentsString(string const& _file)
+{
+ return contentsGeneric<string>(_file);
+}
+
+void dev::writeFile(std::string const& _file, bytesConstRef _data, bool _writeDeleteRename)
+{
+ namespace fs = boost::filesystem;
+ if (_writeDeleteRename)
+ {
+ fs::path tempPath = fs::unique_path(_file + "-%%%%%%");
+ writeFile(tempPath.string(), _data, false);
+ // will delete _file if it exists
+ fs::rename(tempPath, _file);
+ }
+ else
+ {
+ // create directory if not existent
+ fs::path p(_file);
+ if (!fs::exists(p.parent_path()))
+ {
+ fs::create_directories(p.parent_path());
+ DEV_IGNORE_EXCEPTIONS(fs::permissions(p.parent_path(), fs::owner_all));
+ }
+
+ ofstream s(_file, ios::trunc | ios::binary);
+ s.write(reinterpret_cast<char const*>(_data.data()), _data.size());
+ if (!s)
+ BOOST_THROW_EXCEPTION(FileError() << errinfo_comment("Could not write to file: " + _file));
+ DEV_IGNORE_EXCEPTIONS(fs::permissions(_file, fs::owner_read|fs::owner_write));
+ }
+}