pollymc/launcher/minecraft/mod/Mod.cpp

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2021-01-18 12:58:54 +05:30
/* Copyright 2013-2021 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "Mod.h"
#include <QDir>
#include <QString>
#include <FileSystem.h>
#include <QDebug>
#include "MetadataHandler.h"
namespace {
ModDetails invalidDetails;
}
Mod::Mod(const QFileInfo& file)
{
repath(file);
m_changedDateTime = file.lastModified();
}
Mod::Mod(const QDir& mods_dir, const Metadata::ModStruct& metadata)
: m_file(mods_dir.absoluteFilePath(metadata.filename))
// It is weird, but name is not reliable for comparing with the JAR files name
// FIXME: Maybe use hash when implemented?
, m_internal_id(metadata.filename)
, m_name(metadata.name)
{
if (m_file.isDir()) {
m_type = MOD_FOLDER;
} else {
if (metadata.filename.endsWith(".zip") || metadata.filename.endsWith(".jar"))
m_type = MOD_ZIPFILE;
else if (metadata.filename.endsWith(".litemod"))
m_type = MOD_LITEMOD;
else
m_type = MOD_SINGLEFILE;
}
m_from_metadata = true;
m_enabled = true;
m_changedDateTime = m_file.lastModified();
m_temp_metadata = std::make_shared<Metadata::ModStruct>(std::move(metadata));
}
void Mod::repath(const QFileInfo& file)
{
m_file = file;
QString name_base = file.fileName();
m_type = Mod::MOD_UNKNOWN;
m_internal_id = name_base;
if (m_file.isDir()) {
m_type = MOD_FOLDER;
m_name = name_base;
} else if (m_file.isFile()) {
if (name_base.endsWith(".disabled")) {
m_enabled = false;
name_base.chop(9);
} else {
m_enabled = true;
}
if (name_base.endsWith(".zip") || name_base.endsWith(".jar")) {
m_type = MOD_ZIPFILE;
name_base.chop(4);
} else if (name_base.endsWith(".litemod")) {
m_type = MOD_LITEMOD;
name_base.chop(8);
} else {
m_type = MOD_SINGLEFILE;
}
m_name = name_base;
}
}
bool Mod::enable(bool value)
{
if (m_type == Mod::MOD_UNKNOWN || m_type == Mod::MOD_FOLDER)
return false;
if (m_enabled == value)
return false;
QString path = m_file.absoluteFilePath();
QFile file(path);
if (value) {
if (!path.endsWith(".disabled"))
return false;
path.chop(9);
if (!file.rename(path))
return false;
} else {
path += ".disabled";
if (!file.rename(path))
return false;
}
if (!fromMetadata())
repath(QFileInfo(path));
m_enabled = value;
return true;
}
bool Mod::destroy(QDir& index_dir)
{
auto n = name();
// FIXME: This can fail to remove the metadata if the
// "DontUseModMetadata" setting is on, since there could
// be a name mismatch!
Metadata::remove(index_dir, n);
m_type = MOD_UNKNOWN;
return FS::deletePath(m_file.filePath());
}
const ModDetails& Mod::details() const
{
return m_localDetails ? *m_localDetails : invalidDetails;
}
QString Mod::name() const
{
auto d_name = details().name;
if (!d_name.isEmpty()) {
return d_name;
}
return m_name;
}
QString Mod::version() const
{
return details().version;
}
QString Mod::homeurl() const
{
return details().homeurl;
}
QString Mod::description() const
{
return details().description;
}
QStringList Mod::authors() const
{
return details().authors;
}
void Mod::finishResolvingWithDetails(std::shared_ptr<ModDetails> details)
{
m_resolving = false;
m_resolved = true;
m_localDetails = details;
if (fromMetadata() && m_temp_metadata->isValid()) {
m_localDetails->metadata = m_temp_metadata;
m_temp_metadata.reset();
}
}