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/*
* Copyright (c) [2011-2015] Novell, Inc.
* Copyright (c) [2016-2020] SUSE LLC
*
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as published
* by the Free Software Foundation.
*
* 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, contact Novell, Inc.
*
* To contact Novell about this file by physical or electronic mail, you may
* find current contact information at www.novell.com.
*/
#include <iostream>
#include <snapper/AppUtil.h>
#include "utils/text.h"
#include "GlobalOptions.h"
#include "proxy.h"
#include "misc.h"
namespace snapper
{
using namespace std;
void
help_create()
{
cout << _(" Create snapshot:") << '\n'
<< _("\tsnapper create") << '\n'
<< '\n'
<< _(" Options for 'create' command:") << '\n'
<< _("\t--type, -t <type>\t\tType for snapshot.") << '\n'
<< _("\t--pre-number <number>\t\tNumber of corresponding pre snapshot.") << '\n'
<< _("\t--print-number, -p\t\tPrint number of created snapshot.") << '\n'
<< _("\t--description, -d <description>\tDescription for snapshot.") << '\n'
<< _("\t--cleanup-algorithm, -c <algo>\tCleanup algorithm for snapshot.") << '\n'
<< _("\t--userdata, -u <userdata>\tUserdata for snapshot.") << '\n'
<< _("\t--command <command>\t\tRun command and create pre and post snapshots.") << endl
<< _("\t--read-only\t\t\tCreate read-only snapshot.") << '\n'
<< _("\t--read-write\t\t\tCreate read-write snapshot.") << '\n'
<< _("\t--from <number>\t\t\tCreate a snapshot from the specified snapshot.") << '\n'
<< endl;
}
namespace
{
enum class CreateType { SINGLE, PRE, POST, PRE_POST };
}
void
command_create(GlobalOptions& global_options, GetOpts& get_opts, ProxySnappers*, ProxySnapper* snapper)
{
const vector<Option> options = {
Option("type", required_argument, 't'),
Option("pre-number", required_argument),
Option("print-number", no_argument, 'p'),
Option("description", required_argument, 'd'),
Option("cleanup-algorithm", required_argument, 'c'),
Option("userdata", required_argument, 'u'),
Option("command", required_argument),
Option("read-only", no_argument),
Option("read-write", no_argument),
Option("from", required_argument)
};
ParsedOpts opts = get_opts.parse("create", options);
const ProxySnapshots& snapshots = snapper->getSnapshots();
CreateType type = CreateType::SINGLE;
ProxySnapshots::const_iterator snapshot1 = snapshots.end();
ProxySnapshots::const_iterator snapshot2 = snapshots.end();
bool print_number = false;
SCD scd;
string command;
ProxySnapshots::const_iterator parent = snapshots.getCurrent();
ParsedOpts::const_iterator opt;
if ((opt = opts.find("type")) != opts.end())
{
if (!toValue(opt->second, type, false))
{
string error = sformat(_("Unknown type '%s'."), opt->second.c_str()) + '\n' +
possible_enum_values<CreateType>();
SN_THROW(OptionsException(error));
}
}
if ((opt = opts.find("pre-number")) != opts.end())
snapshot1 = snapshots.findNum(opt->second);
if ((opt = opts.find("print-number")) != opts.end())
print_number = true;
if ((opt = opts.find("description")) != opts.end())
scd.description = opt->second;
if ((opt = opts.find("cleanup-algorithm")) != opts.end())
scd.cleanup = opt->second;
if ((opt = opts.find("userdata")) != opts.end())
scd.userdata = read_userdata(opt->second);
if ((opt = opts.find("command")) != opts.end())
{
command = opt->second;
type = CreateType::PRE_POST;
}
if ((opt = opts.find("read-only")) != opts.end())
scd.read_only = true;
if ((opt = opts.find("read-write")) != opts.end())
scd.read_only = false;
if ((opt = opts.find("from")) != opts.end())
parent = snapshots.findNum(opt->second);
if (type == CreateType::POST && snapshot1 == snapshots.end())
{
SN_THROW(OptionsException(_("Missing or invalid pre-number.")));
}
if (type == CreateType::PRE_POST && command.empty())
{
SN_THROW(OptionsException(_("Missing command option.")));
}
if (type != CreateType::SINGLE && !scd.read_only)
{
// DBus versions of CreatePreSnapshot and CreatePostSnapshot do not pass read-only flag
SN_THROW(OptionsException(_("Option --read-write only supported for snapshots of type single.")));
}
if (type != CreateType::SINGLE && parent != snapshots.getCurrent())
{
SN_THROW(OptionsException(_("Option --from only supported for snapshots of type single.")));
}
if (get_opts.has_args())
{
SN_THROW(OptionsException(_("Command 'create' does not take arguments.")));
}
switch (type)
{
case CreateType::SINGLE: {
snapshot1 = snapper->createSingleSnapshot(parent, scd);
if (print_number)
cout << snapshot1->getNum() << endl;
} break;
case CreateType::PRE: {
snapshot1 = snapper->createPreSnapshot(scd);
if (print_number)
cout << snapshot1->getNum() << endl;
} break;
case CreateType::POST: {
snapshot2 = snapper->createPostSnapshot(snapshot1, scd);
if (print_number)
cout << snapshot2->getNum() << endl;
} break;
case CreateType::PRE_POST: {
snapshot1 = snapper->createPreSnapshot(scd);
system(command.c_str());
snapshot2 = snapper->createPostSnapshot(snapshot1, scd);
if (print_number)
cout << snapshot1->getNum() << ".." << snapshot2->getNum() << endl;
} break;
}
}
template <> struct EnumInfo<CreateType> { static const vector<string> names; };
const vector<string> EnumInfo<CreateType>::names({ "single", "pre", "post", "pre-post" });
}
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