File: mergedvfs.h

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/***************************************************************************
 *   Copyright Simon Persson                                               *
 *   simonpersson1@gmail.com                                               *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

#ifndef MERGEDVFS_H
#define MERGEDVFS_H

#include <git2.h>
uint qHash(git_oid pOid);
bool operator ==(const git_oid &pOidA, const git_oid &pOidB);
#include <QHash>
#include <QObject>

#include <QUrl>

#include <sys/stat.h>

struct VersionData {
	VersionData(bool pChunkedFile, const git_oid *pOid, quint64 pCommitTime, quint64 pModifiedDate)
	   :mChunkedFile(pChunkedFile), mOid(*pOid), mCommitTime(pCommitTime), mModifiedDate(pModifiedDate)
	{
		mSizeIsValid = false;
	}

	VersionData(const git_oid *pOid, quint64 pCommitTime, quint64 pModifiedDate, quint64 pSize)
	   :mOid(*pOid), mCommitTime(pCommitTime), mModifiedDate(pModifiedDate), mSize(pSize)
	{
		mSizeIsValid = true;
	}

	quint64 size();
	bool mSizeIsValid;
	bool mChunkedFile;
	git_oid mOid;
	quint64 mCommitTime;
	quint64 mModifiedDate;

protected:
	quint64 mSize;
};

class MergedNode;
typedef QList<MergedNode*> MergedNodeList;
typedef QListIterator<MergedNode*> MergedNodeListIterator;
typedef QList<VersionData *> VersionList;
typedef QListIterator<VersionData *> VersionListIterator;

class MergedNode: public QObject {
	Q_OBJECT
	friend class VersionData;
public:
	MergedNode(QObject *pParent, const QString &pName, uint pMode);
	virtual ~MergedNode() {
		if(mSubNodes != NULL) {
			delete mSubNodes;
		}
	}
	bool isDirectory() const { return S_ISDIR(mMode); }
	void getBupUrl(int pVersionIndex, QUrl *pComplete, QString *pRepoPath = NULL, QString *pBranchName = NULL,
	               quint64 *pCommitTime = NULL, QString *pPathInRepo = NULL) const;
	virtual MergedNodeList &subNodes();
	const VersionList *versionList() const { return &mVersionList; }
	uint mode() const { return mMode; }
	static void askForIntegrityCheck();

protected:
	virtual void generateSubNodes();

	static git_repository *mRepository;
	uint mMode;
	VersionList mVersionList;
	MergedNodeList *mSubNodes;
};

class MergedRepository: public MergedNode {
	Q_OBJECT
public:
	MergedRepository(QObject *pParent, const QString &pRepositoryPath, const QString &pBranchName);
	virtual ~MergedRepository();

	bool open();
	bool readBranch();
	bool permissionsOk();

	QString mBranchName;
};

#endif // MERGEDVFS_H