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Remove a lot of error code and error handling madness.

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This commit is contained in:
Petr Mrázek 2014-03-02 19:12:04 +01:00
parent 80d146866c
commit 28ad9befdc
7 changed files with 230 additions and 309 deletions
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5
CMakeLists.txt
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@ -257,6 +257,7 @@ SET(MULTIMC_SOURCES
MultiMC.h
MultiMC.cpp
MultiMCVersion.h
MMCError.h
# Logging
logger/QsDebugOutput.cpp
@ -353,6 +354,10 @@ logic/ModList.cpp
logic/InstanceLauncher.h
logic/InstanceLauncher.cpp
# JSON parsing helpers
logic/MMCJson.h
logic/MMCJson.cpp
# network stuffs
logic/net/NetAction.h
logic/net/MD5EtagDownload.h

29
MMCError.h Normal file
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@ -0,0 +1,29 @@
#pragma once
#include <exception>
#include <QString>
#include <logger/QsLog.h>
class MMCError : public std::exception
{
public:
MMCError(QString cause)
{
exceptionCause = cause;
QLOG_ERROR() << errorName() + ": " + cause;
};
virtual ~MMCError(){};
virtual const char *what() const noexcept
{
return exceptionCause.toLocal8Bit();
};
virtual QString cause() const
{
return exceptionCause;
}
virtual QString errorName()
{
return "MultiMC Error";
}
private:
QString exceptionCause;
};

53
logic/MMCJson.cpp Normal file
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@ -0,0 +1,53 @@
#include "MMCJson.h"
#include <QString>
bool MMCJson::ensureBoolean(const QJsonValue val, const QString what)
{
if (!val.isBool())
throw JSONValidationError(what + " is not boolean");
return val.isBool();
}
QJsonValue MMCJson::ensureExists(QJsonValue val, const QString what)
{
if(val.isNull())
throw JSONValidationError(what + " does not exist");
return val;
}
QJsonArray MMCJson::ensureArray(const QJsonValue val, const QString what)
{
if (!val.isArray())
throw JSONValidationError(what + " is not an array");
return val.toArray();
}
double MMCJson::ensureDouble(const QJsonValue val, const QString what)
{
if (!val.isDouble())
throw JSONValidationError(what + " is not a number");
double ret = val.toDouble();
}
int MMCJson::ensureInteger(const QJsonValue val, const QString what)
{
double ret = ensureDouble(val, what);
if (fmod(ret, 1) != 0)
throw JSONValidationError(what + " is not an integer");
return ret;
}
QJsonObject MMCJson::ensureObject(const QJsonValue val, const QString what)
{
if (!val.isObject())
throw JSONValidationError(what + " is not an object");
return val.toObject();
}
QString MMCJson::ensureString(const QJsonValue val, const QString what)
{
if (!val.isString())
throw JSONValidationError(what + " is not a string");
return val.toString();
}

46
logic/MMCJson.h Normal file
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@ -0,0 +1,46 @@
/**
* Some de-bullshitting for Qt JSON failures.
*
* Simple exception-throwing
*/
#pragma once
#include <QJsonValue>
#include <QJsonObject>
#include <QJsonArray>
#include "MMCError.h"
class JSONValidationError : public MMCError
{
public:
JSONValidationError(QString cause) : MMCError(cause) {};
virtual QString errorName()
{
return "JSONValidationError";
};
virtual ~JSONValidationError() {};
};
namespace MMCJson
{
/// make sure the value exists. throw otherwise.
QJsonValue ensureExists(QJsonValue val, const QString what = "value");
/// make sure the value is converted into an object. throw otherwise.
QJsonObject ensureObject(const QJsonValue val, const QString what = "value");
/// make sure the value is converted into an array. throw otherwise.
QJsonArray ensureArray(const QJsonValue val, QString what = "value");
/// make sure the value is converted into a string. throw otherwise.
QString ensureString(const QJsonValue val, QString what = "value");
/// make sure the value is converted into a boolean. throw otherwise.
bool ensureBoolean(const QJsonValue val, QString what = "value");
/// make sure the value is converted into an integer. throw otherwise.
int ensureInteger(const QJsonValue val, QString what = "value");
/// make sure the value is converted into a double precision floating number. throw otherwise.
double ensureDouble(const QJsonValue val, QString what = "value");
}

90
logic/OneSixVersionBuilder.cpp
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@ -73,10 +73,7 @@ bool OneSixVersionBuilder::buildInternal(const bool onlyVanilla, const QStringLi
file.fileId = "org.multimc.external." + file.name;
file.version = QString();
file.mcVersion = QString();
bool isError = false;
auto errorcode = file.applyTo(m_version);
if(errorcode != VersionFile::NoApplyError)
return false;
file.applyTo(m_version);
}
// else, if there's custom json, we just do that.
else if (QFile::exists(root.absoluteFilePath("custom.json")))
@ -91,9 +88,7 @@ bool OneSixVersionBuilder::buildInternal(const bool onlyVanilla, const QStringLi
file.filename = "custom.json";
file.fileId = "org.multimc.custom.json";
file.version = QString();
auto errorcode = file.applyTo(m_version);
if(errorcode != VersionFile::NoApplyError)
return false;
file.applyTo(m_version);
// QObject::tr("The version descriptors of this instance are not compatible with the current version of MultiMC"));
// QObject::tr("Error while applying %1. Please check MultiMC-0.log for more info.")
}
@ -111,18 +106,8 @@ bool OneSixVersionBuilder::buildInternal(const bool onlyVanilla, const QStringLi
file.fileId = "org.multimc.version.json";
file.version = m_instance->intendedVersionId();
file.mcVersion = m_instance->intendedVersionId();
auto error = file.applyTo(m_version);
if (error != VersionFile::NoApplyError)
{
/*
QMessageBox::critical(
m_widgetParent, QObject::tr("Error"),
QObject::tr(
"Error while applying %1. Please check MultiMC-0.log for more info.")
.arg(root.absoluteFilePath("version.json")));
*/
return false;
}
file.applyTo(m_version);
// QObject::tr("Error while applying %1. Please check MultiMC-0.log for more info.").arg(root.absoluteFilePath("version.json")));
if (onlyVanilla)
break;
@ -155,17 +140,8 @@ bool OneSixVersionBuilder::buildInternal(const bool onlyVanilla, const QStringLi
{
QLOG_DEBUG() << "Applying file with order" << order;
auto filePair = files[order];
auto error = filePair.second.applyTo(m_version);
if (error != VersionFile::NoApplyError)
{
/*
QMessageBox::critical(
m_widgetParent, QObject::tr("Error"),
QObject::tr("Error while applying %1. Please check MultiMC-0.log "
"for more info.").arg(filePair.first));
*/
return false;
}
filePair.second.applyTo(m_version);
// QObject::tr("Error while applying %1. Please check MultiMC-0.log for more info.").arg(filePair.first));
}
} while(0);
@ -203,37 +179,12 @@ bool OneSixVersionBuilder::readJsonAndApply(const QJsonObject &obj)
{
m_version->clear();
bool isError = false;
VersionFile file = VersionFile::fromJson(QJsonDocument(obj), QString(), false, isError);
if (isError)
{
/*
QMessageBox::critical(
m_widgetParent, QObject::tr("Error"),
QObject::tr("Error while reading. Please check MultiMC-0.log for more info."));
*/
return false;
}
VersionFile::ApplyError error = file.applyTo(m_version);
if (error == VersionFile::OtherError)
{
/*
QMessageBox::critical(
m_widgetParent, QObject::tr("Error"),
QObject::tr("Error while applying. Please check MultiMC-0.log for more info."));
*/
return false;
}
else if (error == VersionFile::LauncherVersionError)
{
/*
QMessageBox::critical(
m_widgetParent, QObject::tr("Error"),
QObject::tr("The version descriptors of this instance are not compatible with the current version of MultiMC"));
*/
return false;
}
VersionFile file = VersionFile::fromJson(QJsonDocument(obj), QString(), false);
// QObject::tr("Error while reading. Please check MultiMC-0.log for more info."));
file.applyTo(m_version);
// QObject::tr("Error while applying. Please check MultiMC-0.log for more info."));
// QObject::tr("The version descriptors of this instance are not compatible with the current version of MultiMC"));
return true;
}
@ -242,11 +193,7 @@ bool OneSixVersionBuilder::parseJsonFile(const QFileInfo& fileInfo, const bool r
QFile file(fileInfo.absoluteFilePath());
if (!file.open(QFile::ReadOnly))
{
/*
QMessageBox::critical(
m_widgetParent, QObject::tr("Error"),
QObject::tr("Unable to open %1: %2").arg(file.fileName(), file.errorString()));
*/
// QObject::tr("Unable to open %1: %2").arg(file.fileName(), file.errorString());
return false;
}
QJsonParseError error;
@ -261,17 +208,8 @@ bool OneSixVersionBuilder::parseJsonFile(const QFileInfo& fileInfo, const bool r
*/
return false;
}
bool isError = false;
*out = VersionFile::fromJson(doc, file.fileName(), requireOrder, isError, isFTB);
if (isError)
{
/*
QMessageBox::critical(
m_widgetParent, QObject::tr("Error"),
QObject::tr("Error while reading %1. Please check MultiMC-0.log for more info.")
.arg(file.fileName()));
*/
}
*out = VersionFile::fromJson(doc, file.fileName(), requireOrder, isFTB);
// QObject::tr("Error while reading %1. Please check MultiMC-0.log for more info.").arg(file.fileName());
return true;
}

288
logic/VersionFile.cpp
View File

@ -7,19 +7,20 @@
#include "logic/VersionFile.h"
#include "logic/OneSixLibrary.h"
#include "logic/VersionFinal.h"
#include "MMCJson.h"
using namespace MMCJson;
#define CURRENT_MINIMUM_LAUNCHER_VERSION 14
VersionFile::Library VersionFile::Library::fromJson(const QJsonObject &libObj,
const QString &filename, bool &isError)
const QString &filename)
{
isError = true;
Library out;
if (!libObj.contains("name"))
{
QLOG_ERROR() << filename << "contains a library that doesn't have a 'name' field";
return out;
throw JSONValidationError(filename +
"contains a library that doesn't have a 'name' field");
}
out.name = libObj.value("name").toString();
@ -45,44 +46,17 @@ VersionFile::Library VersionFile::Library::fromJson(const QJsonObject &libObj,
readString("MMC-absoluteUrl", out.absoluteUrl);
if (libObj.contains("extract"))
{
if (!libObj.value("extract").isObject())
{
QLOG_ERROR() << filename
<< "contains a library with an 'extract' field that's not an object";
return out;
}
QJsonObject extractObj = libObj.value("extract").toObject();
if (!extractObj.contains("exclude") || !extractObj.value("exclude").isArray())
{
QLOG_ERROR() << filename << "contains a library with an invalid 'extract' field";
return out;
}
out.applyExcludes = true;
QJsonArray excludeArray = extractObj.value("exclude").toArray();
for (auto excludeVal : excludeArray)
auto extractObj = ensureObject(libObj.value("extract"));
for (auto excludeVal : ensureArray(extractObj.value("exclude")))
{
if (!excludeVal.isString())
{
QLOG_WARN() << filename << "contains a library that contains an 'extract' "
"field that contains an invalid 'exclude' entry "
"(skipping)";
}
else
{
out.excludes.append(excludeVal.toString());
}
out.excludes.append(ensureString(excludeVal));
}
}
if (libObj.contains("natives"))
{
if (!libObj.value("natives").isObject())
{
QLOG_ERROR() << filename
<< "contains a library with a 'natives' field that's not an object";
return out;
}
out.applyNatives = true;
QJsonObject nativesObj = libObj.value("natives").toObject();
QJsonObject nativesObj = ensureObject(libObj.value("natives"));
for (auto it = nativesObj.begin(); it != nativesObj.end(); ++it)
{
if (!it.value().isString())
@ -101,24 +75,19 @@ VersionFile::Library VersionFile::Library::fromJson(const QJsonObject &libObj,
out.applyRules = true;
out.rules = rulesFromJsonV4(libObj);
}
isError = false;
return out;
}
VersionFile VersionFile::fromJson(const QJsonDocument &doc, const QString &filename,
const bool requireOrder, bool &isError, const bool isFTB)
VersionFile VersionFile::fromJson(const QJsonDocument &doc, const QString &filename, const bool requireOrder, const bool isFTB)
{
VersionFile out;
isError = true;
if (doc.isEmpty() || doc.isNull())
{
QLOG_ERROR() << filename << "is empty or null";
return out;
throw JSONValidationError(filename + " is empty or null");
}
if (!doc.isObject())
{
QLOG_ERROR() << "The root of" << filename << "is not an object";
return out;
throw JSONValidationError("The root of " + filename + " is not an object");
}
QJsonObject root = doc.object();
@ -127,18 +96,11 @@ VersionFile VersionFile::fromJson(const QJsonDocument &doc, const QString &filen
{
if (root.contains("order"))
{
if (root.value("order").isDouble())
{
out.order = root.value("order").toDouble();
}
else
{
QLOG_ERROR() << "'order' field contains an invalid value in" << filename;
return out;
}
out.order = ensureInteger(root.value("order"));
}
else
{
// FIXME: evaluate if we don't want to throw exceptions here instead
QLOG_ERROR() << filename << "doesn't contain an order field";
}
}
@ -153,19 +115,11 @@ VersionFile VersionFile::fromJson(const QJsonDocument &doc, const QString &filen
{
if (root.contains(key))
{
QJsonValue val = root.value(key);
if (!val.isString())
{
QLOG_WARN() << key << "is not a string in" << filename << "(skipping)";
}
else
{
variable = val.toString();
}
variable = ensureString(root.value(key));
}
};
// FTB id attribute is completely bogus. We ignore it.
// FIXME: This should be ignored when applying.
if (!isFTB)
{
readString("id", out.id);
@ -180,108 +134,47 @@ VersionFile VersionFile::fromJson(const QJsonDocument &doc, const QString &filen
readString("releaseTime", out.releaseTime);
readString("time", out.time);
readString("assets", out.assets);
if (root.contains("minimumLauncherVersion"))
{
QJsonValue val = root.value("minimumLauncherVersion");
if (!val.isDouble())
{
QLOG_WARN() << "minimumLauncherVersion is not an int in" << filename
<< "(skipping)";
}
else
{
out.minimumLauncherVersion = val.toDouble();
}
out.minimumLauncherVersion = ensureInteger(root.value("minimumLauncherVersion"));
}
if (root.contains("tweakers"))
{
QJsonValue tweakersVal = root.value("tweakers");
if (!tweakersVal.isArray())
{
QLOG_ERROR() << filename << "contains a 'tweakers' field, but it's not an array";
return out;
}
out.shouldOverwriteTweakers = true;
QJsonArray tweakers = root.value("tweakers").toArray();
for (auto tweakerVal : tweakers)
for (auto tweakerVal : ensureArray(root.value("tweakers")))
{
if (!tweakerVal.isString())
{
QLOG_ERROR() << filename
<< "contains a 'tweakers' field entry that's not a string";
return out;
}
out.overwriteTweakers.append(tweakerVal.toString());
out.overwriteTweakers.append(ensureString(tweakerVal));
}
}
if (root.contains("+tweakers"))
{
QJsonValue tweakersVal = root.value("+tweakers");
if (!tweakersVal.isArray())
for (auto tweakerVal : ensureArray(root.value("+tweakers")))
{
QLOG_ERROR() << filename << "contains a '+tweakers' field, but it's not an array";
return out;
}
QJsonArray tweakers = root.value("+tweakers").toArray();
for (auto tweakerVal : tweakers)
{
if (!tweakerVal.isString())
{
QLOG_ERROR() << filename
<< "contains a '+tweakers' field entry that's not a string";
return out;
}
out.addTweakers.append(tweakerVal.toString());
out.addTweakers.append(ensureString(tweakerVal));
}
}
if (root.contains("-tweakers"))
{
QJsonValue tweakersVal = root.value("-tweakers");
if (!tweakersVal.isArray())
for (auto tweakerVal : ensureArray(root.value("-tweakers")))
{
QLOG_ERROR() << filename << "contains a '-tweakers' field, but it's not an array";
return out;
}
out.shouldOverwriteTweakers = true;
QJsonArray tweakers = root.value("-tweakers").toArray();
for (auto tweakerVal : tweakers)
{
if (!tweakerVal.isString())
{
QLOG_ERROR() << filename
<< "contains a '-tweakers' field entry that's not a string";
return out;
}
out.removeTweakers.append(tweakerVal.toString());
out.removeTweakers.append(ensureString(tweakerVal));
}
}
if (root.contains("libraries"))
{
// FIXME: This should be done when applying.
out.shouldOverwriteLibs = !isFTB;
QJsonValue librariesVal = root.value("libraries");
if (!librariesVal.isArray())
for (auto libVal : ensureArray(root.value("libraries")))
{
QLOG_ERROR() << filename << "contains a 'libraries' field, but its not an array";
return out;
}
QJsonArray librariesArray = librariesVal.toArray();
for (auto libVal : librariesArray)
{
if (!libVal.isObject())
{
QLOG_ERROR() << filename << "contains a library that's not an object";
return out;
}
QJsonObject libObj = libVal.toObject();
bool error;
Library lib = Library::fromJson(libObj, filename, error);
if (error)
{
QLOG_ERROR() << "Error while reading a library entry in" << filename;
return out;
}
auto libObj = ensureObject(libVal);
Library lib = Library::fromJson(libObj, filename);
// FIXME: This should be done when applying.
if (isFTB)
{
lib.hint = "local";
@ -294,36 +187,18 @@ VersionFile VersionFile::fromJson(const QJsonDocument &doc, const QString &filen
}
}
}
if (root.contains("+libraries"))
{
QJsonValue librariesVal = root.value("+libraries");
if (!librariesVal.isArray())
for (auto libVal : ensureArray(root.value("+libraries")))
{
QLOG_ERROR() << filename << "contains a '+libraries' field, but its not an array";
return out;
}
QJsonArray librariesArray = librariesVal.toArray();
for (auto libVal : librariesArray)
{
if (!libVal.isObject())
{
QLOG_ERROR() << filename << "contains a library that's not an object";
return out;
}
QJsonObject libObj = libVal.toObject();
bool error;
Library lib = Library::fromJson(libObj, filename, error);
if (error)
{
QLOG_ERROR() << "Error while reading a library entry in" << filename;
return out;
}
if (!libObj.contains("insert"))
{
QLOG_ERROR() << "Missing 'insert' field in '+libraries' field in" << filename;
return out;
}
QJsonValue insertVal = libObj.value("insert");
QJsonObject libObj = ensureObject(libVal);
QJsonValue insertVal = ensureExists(libObj.value("insert"));
// parse the library
Library lib = Library::fromJson(libObj, filename);
// TODO: utility functions for handling this case. templates?
QString insertString;
{
if (insertVal.isString())
@ -335,8 +210,8 @@ VersionFile VersionFile::fromJson(const QJsonDocument &doc, const QString &filen
QJsonObject insertObj = insertVal.toObject();
if (insertObj.isEmpty())
{
QLOG_ERROR() << "One library has an empty insert object in" << filename;
return out;
throw JSONValidationError("One library has an empty insert object in " +
filename);
}
insertString = insertObj.keys().first();
lib.insertData = insertObj.value(insertString).toString();
@ -360,13 +235,12 @@ VersionFile VersionFile::fromJson(const QJsonDocument &doc, const QString &filen
}
else
{
QLOG_ERROR() << "A '+' library in" << filename
<< "contains an invalid insert type";
return out;
throw JSONValidationError("A '+' library in " + filename +
" contains an invalid insert type");
}
if (libObj.contains("MMC-depend") && libObj.value("MMC-depend").isString())
if (libObj.contains("MMC-depend"))
{
const QString dependString = libObj.value("MMC-depend").toString();
const QString dependString = ensureString(libObj.value("MMC-depend"));
if (dependString == "hard")
{
lib.dependType = Library::Hard;
@ -377,9 +251,8 @@ VersionFile VersionFile::fromJson(const QJsonDocument &doc, const QString &filen
}
else
{
QLOG_ERROR() << "A '+' library in" << filename
<< "contains an invalid depend type";
return out;
throw JSONValidationError("A '+' library in " + filename +
" contains an invalid depend type");
}
}
out.addLibs.append(lib);
@ -387,36 +260,12 @@ VersionFile VersionFile::fromJson(const QJsonDocument &doc, const QString &filen
}
if (root.contains("-libraries"))
{
QJsonValue librariesVal = root.value("-libraries");
if (!librariesVal.isArray())
for (auto libVal : ensureArray(root.value("-libraries")))
{
QLOG_ERROR() << filename << "contains a '-libraries' field, but its not an array";
return out;
}
QJsonArray librariesArray = librariesVal.toArray();
for (auto libVal : librariesArray)
{
if (!libVal.isObject())
{
QLOG_ERROR() << filename << "contains a library that's not an object";
return out;
}
QJsonObject libObj = libVal.toObject();
if (!libObj.contains("name"))
{
QLOG_ERROR() << filename << "contains a library without a name";
return out;
}
if (!libObj.value("name").isString())
{
QLOG_ERROR() << filename << "contains a library without a valid 'name' field";
return out;
}
out.removeLibs.append(libObj.value("name").toString());
auto libObj = ensureObject(libVal);
out.removeLibs.append(ensureString(libObj.value("name")));
}
}
isError = false;
return out;
}
@ -457,16 +306,15 @@ int VersionFile::findLibrary(QList<std::shared_ptr<OneSixLibrary>> haystack,
return -1;
}
VersionFile::ApplyError VersionFile::applyTo(VersionFinal *version)
void VersionFile::applyTo(VersionFinal *version)
{
if (minimumLauncherVersion != -1)
{
if (minimumLauncherVersion > CURRENT_MINIMUM_LAUNCHER_VERSION)
{
QLOG_ERROR() << filename << "is for a different launcher version ("
<< minimumLauncherVersion << "), current supported is"
<< CURRENT_MINIMUM_LAUNCHER_VERSION;
return LauncherVersionError;
throw VersionBuildError(
QString("%1 is for a different launcher version (%2), current supported is %3")
.arg(filename, minimumLauncherVersion, CURRENT_MINIMUM_LAUNCHER_VERSION));
}
}
@ -475,8 +323,8 @@ VersionFile::ApplyError VersionFile::applyTo(VersionFinal *version)
if (QRegExp(mcVersion, Qt::CaseInsensitive, QRegExp::Wildcard).indexIn(version->id) ==
-1)
{
QLOG_ERROR() << filename << "is for a different version of Minecraft";
return OtherError;
throw VersionBuildError(
QString("%1 is for a different version of Minecraft").arg(filename));
}
}
@ -587,7 +435,7 @@ VersionFile::ApplyError VersionFile::applyTo(VersionFinal *version)
}
else
{
QLOG_WARN() << "Couldn't find" << lib.insertData << "(skipping)";
QLOG_WARN() << "Couldn't find" << lib.name << "(skipping)";
}
break;
}
@ -623,10 +471,10 @@ VersionFile::ApplyError VersionFile::applyTo(VersionFinal *version)
if (ourVersion > otherVersion ||
(lib.dependType == Library::Hard && ourVersion != otherVersion))
{
QLOG_ERROR() << "Error resolving library dependencies between"
<< otherLib->rawName() << "and" << lib.name << "in"
<< filename;
return OtherError;
throw VersionBuildError(
QString(
"Error resolving library dependencies between %1 and %2 in %3.")
.arg(otherLib->rawName(), lib.name, filename));
}
else
{
@ -651,10 +499,10 @@ VersionFile::ApplyError VersionFile::applyTo(VersionFinal *version)
// it: fail
if (lib.dependType == Library::Hard)
{
QLOG_ERROR() << "Error resolving library dependencies between"
<< otherLib->rawName() << "and" << lib.name << "in"
<< filename;
return OtherError;
throw VersionBuildError(QString(
"Error resolving library dependencies between %1 and %2 in %3.")
.arg(otherLib->rawName(), lib.name,
filename));
}
}
}
@ -697,6 +545,4 @@ VersionFile::ApplyError VersionFile::applyTo(VersionFinal *version)
versionFile.filename = filename;
versionFile.order = order;
version->versionFiles.append(versionFile);
return NoApplyError;
}

28
logic/VersionFile.h
View File

@ -5,8 +5,21 @@
#include <memory>
#include "logic/OpSys.h"
#include "logic/OneSixRule.h"
#include "MMCError.h"
class VersionFinal;
class VersionBuildError : public MMCError
{
public:
VersionBuildError(QString cause) : MMCError(cause) {};
virtual QString errorName()
{
return "VersionBuildError";
};
virtual ~VersionBuildError() {};
};
struct VersionFile
{
int order;
@ -65,26 +78,17 @@ struct VersionFile
};
DependType dependType = Soft;
static Library fromJson(const QJsonObject &libObj, const QString &filename,
bool &isError);
static Library fromJson(const QJsonObject &libObj, const QString &filename);
};
bool shouldOverwriteLibs = false;
QList<Library> overwriteLibs;
QList<Library> addLibs;
QList<QString> removeLibs;
enum ApplyError
{
LauncherVersionError,
OtherError,
NoApplyError
};
static VersionFile fromJson(const QJsonDocument &doc, const QString &filename,
const bool requireOrder, bool &isError,
const bool isFTB = false);
const bool requireOrder, const bool isFTB = false);
static std::shared_ptr<OneSixLibrary> createLibrary(const Library &lib);
int findLibrary(QList<std::shared_ptr<OneSixLibrary>> haystack, const QString &needle);
ApplyError applyTo(VersionFinal *version);
void applyTo(VersionFinal *version);
};