WPILib Reorganization

This is a major restructuring of the WPILib repository to simply build
procedures and remove the remnants of Maven from everything except the
eclipse plugins. Gradle files have been largely simplified or rewritten,
taking advantage of splitting up parts of the build into separate build
files for ease of reading.

The eclipse plugins are now in a separate project, as is ntcore. All
dependencies are resolved via Maven dependencies, with the
Jenkins-maintained WPILib repo. Project structures have also been
simplified: we no longer have separate subprojects inside wpilibc and
wpilibj. Where possible, these changes hav been done with git renames,
to make sure we still have full history for all repositories. Other
unrelated subprojects have also been broken out: OutlineViewer is now a
separate project.

Change-Id: Ib4e2a6e1a2f66427a14f16612b0e0d69ed661878

wpilibc/shared/src/Error.cpp

@@ -0,0 +1,97 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) FIRST 2008. All Rights Reserved.
+ */
+/* Open Source Software - may be modified and shared by FRC teams. The code   */
+/* must be accompanied by the FIRST BSD license file in $(WIND_BASE)/WPILib.  */
+/*----------------------------------------------------------------------------*/
+
+#include "Error.h"
+
+#include <iostream>
+#include <sstream>
+#include <cstring>
+#include <cstdlib>
+#include <stdint.h>
+
+#include "DriverStation.h"
+#include "Timer.h"
+#include "Utility.h"
+
+void Error::Clone(const Error& error) {
+  m_code = error.m_code;
+  m_message = error.m_message;
+  m_filename = error.m_filename;
+  m_function = error.m_function;
+  m_lineNumber = error.m_lineNumber;
+  m_originatingObject = error.m_originatingObject;
+  m_timestamp = error.m_timestamp;
+}
+
+Error::Code Error::GetCode() const { return m_code; }
+
+std::string Error::GetMessage() const { return m_message; }
+
+std::string Error::GetFilename() const { return m_filename; }
+
+std::string Error::GetFunction() const { return m_function; }
+
+uint32_t Error::GetLineNumber() const { return m_lineNumber; }
+
+const ErrorBase* Error::GetOriginatingObject() const {
+  return m_originatingObject;
+}
+
+double Error::GetTimestamp() const { return m_timestamp; }
+
+void Error::Set(Code code, const std::string& contextMessage,
+                const std::string& filename, const std::string& function,
+                uint32_t lineNumber, const ErrorBase* originatingObject) {
+  bool report = true;
+
+  if (code == m_code && GetTime() - m_timestamp < 1) {
+    report = false;
+  }
+
+  m_code = code;
+  m_message = contextMessage;
+  m_filename = filename;
+  m_function = function;
+  m_lineNumber = lineNumber;
+  m_originatingObject = originatingObject;
+
+  if (report) {
+    m_timestamp = GetTime();
+    Report();
+  }
+}
+
+void Error::Report() {
+  std::stringstream errorStream;
+
+  errorStream << "Error on line " << m_lineNumber << " ";
+#if defined(_UNIX)
+	errorStream << "of " << basename(m_filename.c_str()) << ": ";
+#elif defined(_WIN32)
+	const int MAX_DIR = 100;
+	char basename[MAX_DIR];
+	_splitpath_s(m_filename.c_str(), NULL, 0, basename, MAX_DIR, NULL, 0, NULL, 0);
+	errorStream << "of " << basename << ": ";
+#endif
+
+	errorStream << m_message << std::endl;
+	errorStream << GetStackTrace(4);
+
+  std::string error = errorStream.str();
+
+  DriverStation::ReportError(error);
+}
+
+void Error::Clear() {
+  m_code = 0;
+  m_message = "";
+  m_filename = "";
+  m_function = "";
+  m_lineNumber = 0;
+  m_originatingObject = nullptr;
+  m_timestamp = 0.0;
+}