116 lines
3.3 KiB
C++
116 lines
3.3 KiB
C++
/* Copyright 2013 MultiMC Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <QDir>
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#include <QDirIterator>
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#include <QCryptographicHash>
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#include "AssetsUtils.h"
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#include "MultiMC.h"
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namespace AssetsUtils
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{
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void migrateOldAssets()
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{
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QDir assets_dir("assets");
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if(!assets_dir.exists()) return;
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assets_dir.setFilter(QDir::AllEntries | QDir::NoDotAndDotDot);
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int base_length = assets_dir.path().length();
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QList<QString> blacklist = {"indexes", "objects", "virtual"};
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if(!assets_dir.exists("objects")) assets_dir.mkdir("objects");
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QDir objects_dir("assets/objects");
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QDirIterator iterator(assets_dir, QDirIterator::Subdirectories);
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int successes = 0;
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int failures = 0;
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while (iterator.hasNext()) {
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QString currentDir = iterator.next();
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currentDir = currentDir.remove(0, base_length+1);
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bool ignore = false;
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for(QString blacklisted : blacklist)
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{
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if(currentDir.startsWith(blacklisted)) ignore = true;
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}
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if (!iterator.fileInfo().isDir() && !ignore) {
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QString filename = iterator.filePath();
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QFile input(filename);
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input.open(QIODevice::ReadOnly | QIODevice::WriteOnly);
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QString sha1sum = QCryptographicHash::hash(input.readAll(), QCryptographicHash::Sha1)
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.toHex()
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.constData();
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QString object_name = filename.remove(0, base_length+1);
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QLOG_DEBUG() << "Processing" << object_name << ":" << sha1sum << input.size();
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QString object_tlk = sha1sum.left(2);
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QString object_tlk_dir = objects_dir.path() + "/" + object_tlk;
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QDir tlk_dir(object_tlk_dir);
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if(!tlk_dir.exists()) objects_dir.mkdir(object_tlk);
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QString new_filename = tlk_dir.path() + "/" + sha1sum;
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QFile new_object(new_filename);
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if(!new_object.exists())
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{
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bool rename_success = input.rename(new_filename);
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QLOG_DEBUG() << " Doesn't exist, copying to" << new_filename << ":" << QString::number(rename_success);
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if(rename_success) successes++;
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else failures++;
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}
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else
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{
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input.remove();
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QLOG_DEBUG() << " Already exists, deleting original and not copying.";
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}
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}
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}
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if(successes + failures == 0) {
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QLOG_DEBUG() << "No legacy assets needed importing.";
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}
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else
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{
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QLOG_DEBUG() << "Finished copying legacy assets:" << successes << "successes and" << failures << "failures.";
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QDirIterator cleanup_iterator(assets_dir);
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while (cleanup_iterator.hasNext()) {
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QString currentDir = cleanup_iterator.next();
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currentDir = currentDir.remove(0, base_length+1);
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bool ignore = false;
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for(QString blacklisted : blacklist)
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{
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if(currentDir.startsWith(blacklisted)) ignore = true;
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}
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if (cleanup_iterator.fileInfo().isDir() && !ignore) {
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QString path = cleanup_iterator.filePath();
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QDir folder(path);
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QLOG_DEBUG() << "Cleaning up legacy assets folder:" << path;
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folder.removeRecursively();
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}
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}
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}
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}
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}
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