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/* Copyright © 2005-2013 Roger Leigh <rleigh@debian.org>
*
* schroot 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 3 of the License, or
* (at your option) any later version.
*
* schroot 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, see
* <http://www.gnu.org/licenses/>.
*
*********************************************************************/
#ifndef SBUILD_CHROOT_FACET_BTRFS_SNAPSHOT_H
#define SBUILD_CHROOT_FACET_BTRFS_SNAPSHOT_H
#include <sbuild/chroot/chroot.h>
#include <sbuild/chroot/facet/facet.h>
#include <sbuild/chroot/facet/storage.h>
#include <sbuild/chroot/facet/session-setup.h>
#include <sbuild/chroot/facet/source-setup.h>
namespace sbuild
{
namespace chroot
{
namespace facet
{
/**
* A chroot stored on a Btrfs subvolume.
*
* A snapshot subvolume will be created and mounted on demand.
*/
class btrfs_snapshot : public facet,
public storage,
public session_setup,
public source_setup
{
public:
/// Exception type.
typedef chroot::error error;
/// A shared_ptr to a chroot facet object.
typedef std::shared_ptr<btrfs_snapshot> ptr;
/// A shared_ptr to a const chroot facet object.
typedef std::shared_ptr<const btrfs_snapshot> const_ptr;
protected:
/// The constructor.
btrfs_snapshot ();
/// The copy constructor.
btrfs_snapshot (const btrfs_snapshot& rhs);
void
set_chroot (chroot& chroot,
bool copy);
friend class chroot;
public:
/// The destructor.
virtual ~btrfs_snapshot ();
virtual std::string const&
get_name () const;
/**
* Create a chroot facet.
*
* @returns a shared_ptr to the new chroot facet.
*/
static ptr
create ();
facet::ptr
clone () const;
/**
* Get the source subvolume path. This is used by "btrfs
* subvolume snapshot".
*
* @returns the source subvolume.
*/
std::string const&
get_source_subvolume () const;
/**
* Set the source subvolume path. This is used by "btrfs
* subvolume snapshot".
*
* @param source_subvolume the source subvolume.
*/
void
set_source_subvolume (const std::string& source_subvolume);
/**
* Get the snapshot directory.
*
* @returns the directory.
*/
std::string const&
get_snapshot_directory () const;
/**
* Set the snapshot directory.
*
* @param snapshot_directory the snapshot directory.
*/
void
set_snapshot_directory (const std::string& snapshot_directory);
/**
* Get the snapshot name. This is used by "btrfs subvolume
* snapshot", and is the full path to the snapshot.
*
* @returns the name.
*/
std::string const&
get_snapshot_name () const;
/**
* Set the snapshot name. This is used by "btrfs subvolume
* snapshot", and is the full path to the snapshot.
*
* @param snapshot_name the snapshot name.
*/
void
set_snapshot_name (const std::string& snapshot_name);
virtual std::string
get_path () const;
virtual void
setup_env (environment& env) const;
virtual session_flags
get_session_flags () const;
protected:
virtual void
setup_lock (chroot::setup_type type,
bool lock,
int status);
virtual void
get_details (format_detail& detail) const;
virtual void
get_used_keys (string_list& used_keys) const;
virtual void
get_keyfile (keyfile& keyfile) const;
virtual void
set_keyfile (const keyfile& keyfile);
virtual void
chroot_session_setup (const chroot& parent,
const std::string& session_id,
const std::string& alias,
const std::string& user,
bool root);
virtual void
chroot_source_setup (const chroot& parent);
private:
/// Btrfs source subvolume
std::string source_subvolume;
/// Btrfs snapshot path
std::string snapshot_directory;
/// Btrfs snapshot name
std::string snapshot_name;
};
}
}
}
#endif /* SBUILD_CHROOT_FACET_BTRFS_SNAPSHOT_H */
/*
* Local Variables:
* mode:C++
* End:
*/
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