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Added a check for missing core files when using the %EMUPATH% variable.

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Also refactored and simplified the code from the recent commits related to this.
This commit is contained in:
Leon Styhre 2021-01-11 18:21:14 +01:00
parent 9dd8aacb28
commit 079eccc169
2 changed files with 96 additions and 98 deletions
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178
es-app/src/FileData.cpp
View file

@ -746,7 +746,7 @@ FileData::SortType FileData::getSortTypeFromString(std::string desc) {
void FileData::launchGame(Window* window)
{
LOG(LogInfo) << "Attempting to launch game...";
LOG(LogInfo) << "Launching game \"" << this->metadata.get("name") << "\"...";
std::string command = "";
@ -777,27 +777,10 @@ void FileData::launchGame(Window* window)
// The closing quotation mark will be removed later below.
command = Utils::String::replace(command, "\"%COREPATH%", "%COREPATH%");
// Get the emulator path, which will be used to check that this binary actually exists,
// and to expand the %EMUPATH% variable.
#if defined(_WIN64)
std::string commandTemp = Utils::String::replace(command, "/", "\\");
std::wstring commandWide = Utils::String::stringToWideString(commandTemp);
std::wstring emuPathWide = findEmulatorPath(commandWide);
if (!emuPathWide.empty()) {
auto stringPos = commandWide.find(L"%EMUPATH%");
if (stringPos != std::wstring::npos)
commandWide = commandWide.replace(stringPos, 9, emuPathWide);
}
else {
#else
// Get the emulator path, which will be used to check that the emulator binary actually
// exists, as well as for expanding the %EMUPATH% variable.
std::string emuPath = findEmulatorPath(command);
if (!emuPath.empty()) {
auto stringPos = command.find("%EMUPATH%");
if (stringPos != std::string::npos)
command = command.replace(stringPos, 9, emuPath);
}
else {
#endif
if (emuPath.empty()) {
LOG(LogError) << "Couldn't launch game, emulator binary not found";
LOG(LogError) << "Raw emulator launch command:";
LOG(LogError) << commandRaw;
@ -808,15 +791,67 @@ void FileData::launchGame(Window* window)
return;
}
// If %EMUPATH% is used in es_systems.cfg for this system, then check that the core file
// actually exists.
auto emuPathPos = command.find("%EMUPATH%");
if (emuPathPos != std::string::npos) {
bool hasQuotationMark = false;
unsigned int quotationMarkPos = 0;
if (command.find("\"%EMUPATH%", emuPathPos - 1) != std::string::npos) {
hasQuotationMark = true;
quotationMarkPos = static_cast<unsigned int>(
command.find("\"", emuPathPos + 9) - emuPathPos);
}
auto spacePos = command.find(" ", emuPathPos + quotationMarkPos);
std::string coreRaw;
std::string coreFile;
if (spacePos != std::string::npos) {
coreRaw = command.substr(emuPathPos, spacePos - emuPathPos);
coreFile = emuPath + command.substr(emuPathPos + 9, spacePos - emuPathPos - 9);
if (hasQuotationMark) {
coreRaw.pop_back();
coreFile.pop_back();
}
if (!Utils::FileSystem::isRegularFile(coreFile) &&
!Utils::FileSystem::isSymlink(coreFile)) {
LOG(LogError) << "Couldn't launch game, emulator core file \"" <<
Utils::FileSystem::getFileName(coreFile) << "\" does not exist";
LOG(LogError) << "Raw emulator launch command:";
LOG(LogError) << commandRaw;
GuiInfoPopup* s = new GuiInfoPopup(window,
"ERROR: COULDN'T FIND EMULATOR CORE FILE '" +
Utils::String::toUpper(Utils::FileSystem::getFileName(coreFile)) +
"'", 6000);
window->setInfoPopup(s);
return;
}
else {
if (hasQuotationMark) {
command = command.replace(emuPathPos + quotationMarkPos, 1, "");
emuPathPos--;
command = command.replace(emuPathPos, 1, "");
}
coreFile = Utils::FileSystem::getEscapedPath(coreFile);
command = command.replace(emuPathPos, coreRaw.size(), coreFile);
}
}
else {
LOG(LogError) << "Invalid entry in systems configuration file es_systems.cfg";
LOG(LogError) << "Raw emulator launch command:";
LOG(LogError) << commandRaw;
GuiInfoPopup* s = new GuiInfoPopup(window, "ERROR: INVALID ENTRY IN SYSTEMS " \
"CONFIGURATION FILE", 6000);
window->setInfoPopup(s);
return;
}
}
// If %COREPATH% is used in es_systems.cfg for this system, try to find the emulator
// core using the core paths defined in the setting EmulatorCorePath.
#if defined(_WIN64)
auto corePos = commandWide.find(L"%COREPATH%");
if (corePos != std::wstring::npos && emulatorCorePath.size() > 0) {
#else
auto corePos = command.find("%COREPATH%");
if (corePos != std::string::npos && emulatorCorePath.size() > 0) {
#endif
std::string coreName;
bool foundCoreFile = false;
#if defined(_WIN64)
@ -833,27 +868,20 @@ void FileData::launchGame(Window* window)
std::string coreFile = Utils::FileSystem::expandHomePath(path + coreName);
// Expand %EMUPATH% if it has been used in the %COREPATH% variable.
auto stringPos = coreFile.find("%EMUPATH%");
if (stringPos != std::string::npos) {
#if defined (_WIN64)
coreFile = coreFile.replace(stringPos, 9,
Utils::String::wideStringToString(emuPathWide));
#else
if (stringPos != std::string::npos)
coreFile = coreFile.replace(stringPos, 9, emuPath);
#endif
}
else {
// Expand %ESPATH% if it has been used in the %COREPATH% variable.
stringPos = coreFile.find("%ESPATH%");
if (stringPos != std::string::npos) {
coreFile = coreFile.replace(stringPos, 8, esPath);
#if defined(_WIN64)
coreFile = Utils::String::replace(coreFile, "/", "\\");
#endif
}
}
// Remove any quotation mark as it will make the file functions fail.
if (coreFile.find(" ") != std::string::npos)
if (coreFile.find("\"") != std::string::npos)
coreFile = Utils::String::replace(coreFile, "\"", "");
if (Utils::FileSystem::isRegularFile(coreFile) ||
Utils::FileSystem::isSymlink(coreFile)) {
@ -861,12 +889,7 @@ void FileData::launchGame(Window* window)
// Escape any blankspaces.
if (coreFile.find(" ") != std::string::npos)
coreFile = Utils::FileSystem::getEscapedPath(coreFile);
#if defined(_WIN64)
commandWide.replace(corePos, spacePos - corePos,
Utils::String::stringToWideString(coreFile));
#else
command.replace(corePos, spacePos - corePos, coreFile);
#endif
break;
}
}
@ -911,11 +934,10 @@ void FileData::launchGame(Window* window)
LOG(LogDebug) << commandRaw;
LOG(LogInfo) << "Expanded emulator launch command:";
#if defined(_WIN64)
LOG(LogInfo) << Utils::String::wideStringToString(commandWide);
returnValue = launchEmulatorWindows(commandWide);
#else
LOG(LogInfo) << command;
#if defined(_WIN64)
returnValue = launchEmulatorWindows(Utils::String::stringToWideString(command));
#else
returnValue = launchEmulatorUnix(command);
#endif
@ -975,47 +997,6 @@ void FileData::launchGame(Window* window)
gameToUpdate->mSystem->onMetaDataSavePoint();
}
#if defined(_WIN64)
std::wstring FileData::findEmulatorPath(const std::wstring& command)
{
// Extract the emulator executable from the launch command string. This could either be
// just the program name, assuming the binary is in the PATH variable of the operating
// system, or it could be an absolute path to the emulator. (In the latter case, if
// there is a space in the the path, it needs to be enclosed by quotation marks in
// es_systems.cfg.)
std::wstring emuExecutable;
std::wstring exePath;
// If the first character is a quotation mark, then we need to extract up to the
// next quotation mark, otherwise we'll only extract up to the first space character.
if (command.front() == '\"') {
std::wstring emuTemp = command.substr(1, std::string::npos);
emuExecutable = emuTemp.substr(0, emuTemp.find('"'));
}
else {
emuExecutable = command.substr(0, command.find(' '));
}
// Search for the emulator using the PATH environmental variable.
DWORD size = SearchPathW(nullptr, emuExecutable.c_str(), L".exe", 0, nullptr, nullptr);
if (size) {
std::vector<wchar_t> pathBuffer(static_cast<size_t>(size) + 1 );
wchar_t* fileName = nullptr;
SearchPathW(nullptr, emuExecutable.c_str(), L".exe", size + 1 ,
pathBuffer.data(), &fileName);
std::wstring pathString = pathBuffer.data();
if (pathString.length()) {
exePath = pathString.substr(0, pathString.size() -
std::wstring(fileName).size());
exePath.pop_back();
}
}
return exePath;
}
#else
std::string FileData::findEmulatorPath(const std::string& command)
{
// Extract the emulator executable from the launch command string. This could either be
@ -1036,14 +1017,35 @@ std::string FileData::findEmulatorPath(const std::string& command)
emuExecutable = command.substr(0, command.find(' '));
}
#if defined(_WIN64)
std::wstring emuExecutableWide = Utils::String::stringToWideString(emuExecutable);
// Search for the emulator using the PATH environmental variable.
DWORD size = SearchPathW(nullptr, emuExecutableWide.c_str(), L".exe", 0, nullptr, nullptr);
if (size) {
std::vector<wchar_t> pathBuffer(static_cast<size_t>(size) + 1 );
wchar_t* fileName = nullptr;
SearchPathW(nullptr, emuExecutableWide.c_str(), L".exe", size + 1 ,
pathBuffer.data(), &fileName);
std::wstring pathString = pathBuffer.data();
if (pathString.length()) {
exePath = Utils::String::wideStringToString(pathString.substr(0, pathString.size() -
std::wstring(fileName).size()));
exePath.pop_back();
}
}
#else
if (Utils::FileSystem::isRegularFile(emuExecutable) ||
Utils::FileSystem::isSymlink(emuExecutable))
exePath = Utils::FileSystem::getParent(emuExecutable);
else
exePath = Utils::FileSystem::getPathToBinary(emuExecutable);
#endif
return exePath;
}
#endif
CollectionFileData::CollectionFileData(FileData* file, SystemData* system)
: FileData(file->getSourceFileData()->getType(), file->getSourceFileData()->getPath(),

4
es-app/src/FileData.h
View file

@ -97,11 +97,7 @@ public:
std::string getCleanName() const;
void launchGame(Window* window);
#if defined(_WIN64)
std::wstring findEmulatorPath(const std::wstring& command);
#else
std::string findEmulatorPath(const std::string& command);
#endif
typedef bool ComparisonFunction(const FileData* a, const FileData* b);
struct SortType {