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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmMessenger.h"
#include "cmDocumentationFormatter.h"
#include "cmMessageMetadata.h"
#include "cmStringAlgorithms.h"
#include "cmSystemTools.h"
#if !defined(CMAKE_BOOTSTRAP)
# include "cmsys/SystemInformation.hxx"
#endif
#include <sstream>
#include <utility>
#include "cmsys/Terminal.h"
MessageType cmMessenger::ConvertMessageType(MessageType t) const
{
bool warningsAsErrors;
if (t == MessageType::AUTHOR_WARNING || t == MessageType::AUTHOR_ERROR) {
warningsAsErrors = this->GetDevWarningsAsErrors();
if (warningsAsErrors && t == MessageType::AUTHOR_WARNING) {
t = MessageType::AUTHOR_ERROR;
} else if (!warningsAsErrors && t == MessageType::AUTHOR_ERROR) {
t = MessageType::AUTHOR_WARNING;
}
} else if (t == MessageType::DEPRECATION_WARNING ||
t == MessageType::DEPRECATION_ERROR) {
warningsAsErrors = this->GetDeprecatedWarningsAsErrors();
if (warningsAsErrors && t == MessageType::DEPRECATION_WARNING) {
t = MessageType::DEPRECATION_ERROR;
} else if (!warningsAsErrors && t == MessageType::DEPRECATION_ERROR) {
t = MessageType::DEPRECATION_WARNING;
}
}
return t;
}
bool cmMessenger::IsMessageTypeVisible(MessageType t) const
{
bool isVisible = true;
if (t == MessageType::DEPRECATION_ERROR) {
if (!this->GetDeprecatedWarningsAsErrors()) {
isVisible = false;
}
} else if (t == MessageType::DEPRECATION_WARNING) {
if (this->GetSuppressDeprecatedWarnings()) {
isVisible = false;
}
} else if (t == MessageType::AUTHOR_ERROR) {
if (!this->GetDevWarningsAsErrors()) {
isVisible = false;
}
} else if (t == MessageType::AUTHOR_WARNING) {
if (this->GetSuppressDevWarnings()) {
isVisible = false;
}
}
return isVisible;
}
static bool printMessagePreamble(MessageType t, std::ostream& msg)
{
// Construct the message header.
if (t == MessageType::FATAL_ERROR) {
msg << "CMake Error";
} else if (t == MessageType::INTERNAL_ERROR) {
msg << "CMake Internal Error (please report a bug)";
} else if (t == MessageType::LOG) {
msg << "CMake Debug Log";
} else if (t == MessageType::DEPRECATION_ERROR) {
msg << "CMake Deprecation Error";
} else if (t == MessageType::DEPRECATION_WARNING) {
msg << "CMake Deprecation Warning";
} else if (t == MessageType::AUTHOR_WARNING) {
msg << "CMake Warning (dev)";
} else if (t == MessageType::AUTHOR_ERROR) {
msg << "CMake Error (dev)";
} else {
msg << "CMake Warning";
}
return true;
}
static int getMessageColor(MessageType t)
{
switch (t) {
case MessageType::INTERNAL_ERROR:
case MessageType::FATAL_ERROR:
case MessageType::AUTHOR_ERROR:
return cmsysTerminal_Color_ForegroundRed;
case MessageType::AUTHOR_WARNING:
case MessageType::WARNING:
return cmsysTerminal_Color_ForegroundYellow;
default:
return cmsysTerminal_Color_Normal;
}
}
static void printMessageText(std::ostream& msg, std::string const& text)
{
msg << ":\n";
cmDocumentationFormatter formatter;
formatter.SetIndent(2u);
formatter.PrintFormatted(msg, text);
}
static void displayMessage(MessageType t, std::ostringstream& msg)
{
// Add a note about warning suppression.
if (t == MessageType::AUTHOR_WARNING) {
msg << "This warning is for project developers. Use -Wno-dev to suppress "
"it.";
} else if (t == MessageType::AUTHOR_ERROR) {
msg << "This error is for project developers. Use -Wno-error=dev to "
"suppress it.";
}
// Add a terminating blank line.
msg << "\n";
#if !defined(CMAKE_BOOTSTRAP)
// Add a C++ stack trace to internal errors.
if (t == MessageType::INTERNAL_ERROR) {
std::string stack = cmsys::SystemInformation::GetProgramStack(0, 0);
if (!stack.empty()) {
if (cmHasLiteralPrefix(stack, "WARNING:")) {
stack = "Note:" + stack.substr(8);
}
msg << stack << "\n";
}
}
#endif
// Output the message.
cmMessageMetadata md;
md.desiredColor = getMessageColor(t);
if (t == MessageType::FATAL_ERROR || t == MessageType::INTERNAL_ERROR ||
t == MessageType::DEPRECATION_ERROR || t == MessageType::AUTHOR_ERROR) {
cmSystemTools::SetErrorOccurred();
md.title = "Error";
cmSystemTools::Message(msg.str(), md);
} else {
md.title = "Warning";
cmSystemTools::Message(msg.str(), md);
}
}
namespace {
void PrintCallStack(std::ostream& out, cmListFileBacktrace bt,
cm::optional<std::string> const& topSource)
{
// The call stack exists only if we have at least two calls on top
// of the bottom.
if (bt.Empty()) {
return;
}
bt = bt.Pop();
if (bt.Empty()) {
return;
}
bool first = true;
for (; !bt.Empty(); bt = bt.Pop()) {
cmListFileContext lfc = bt.Top();
if (lfc.Name.empty() &&
lfc.Line != cmListFileContext::DeferPlaceholderLine) {
// Skip this whole-file scope. When we get here we already will
// have printed a more-specific context within the file.
continue;
}
if (first) {
first = false;
out << "Call Stack (most recent call first):\n";
}
if (topSource) {
lfc.FilePath = cmSystemTools::RelativeIfUnder(*topSource, lfc.FilePath);
}
out << " " << lfc << "\n";
}
}
}
void cmMessenger::IssueMessage(MessageType t, const std::string& text,
const cmListFileBacktrace& backtrace) const
{
bool force = false;
// override the message type, if needed, for warnings and errors
MessageType override = this->ConvertMessageType(t);
if (override != t) {
t = override;
force = true;
}
if (force || this->IsMessageTypeVisible(t)) {
this->DisplayMessage(t, text, backtrace);
}
}
void cmMessenger::DisplayMessage(MessageType t, const std::string& text,
const cmListFileBacktrace& backtrace) const
{
std::ostringstream msg;
if (!printMessagePreamble(t, msg)) {
return;
}
// Add the immediate context.
this->PrintBacktraceTitle(msg, backtrace);
printMessageText(msg, text);
// Add the rest of the context.
PrintCallStack(msg, backtrace, this->TopSource);
displayMessage(t, msg);
}
void cmMessenger::PrintBacktraceTitle(std::ostream& out,
cmListFileBacktrace const& bt) const
{
// The title exists only if we have a call on top of the bottom.
if (bt.Empty()) {
return;
}
cmListFileContext lfc = bt.Top();
if (this->TopSource) {
lfc.FilePath =
cmSystemTools::RelativeIfUnder(*this->TopSource, lfc.FilePath);
}
out << (lfc.Line ? " at " : " in ") << lfc;
}
void cmMessenger::SetTopSource(cm::optional<std::string> topSource)
{
this->TopSource = std::move(topSource);
}
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