1 /*
2 * Copyright (c) 2022-2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include <iostream>
17 #include <sstream>
18
19 #include "tools_op.h"
20 #include "tools_op_help.h"
21
22 namespace OHOS::FileManagement::Backup {
23 using namespace std;
24
GenHelpMsg()25 static string GenHelpMsg()
26 {
27 return "\t\tThis operation helps to dump the help messages.";
28 }
29
Exec(map<string,vector<string>> & mapArgToVal)30 static int Exec(map<string, vector<string>> &mapArgToVal)
31 {
32 stringstream ss;
33 auto &&allOps = ToolsOp::GetAllOperations();
34 ss << "Usage: backup_tool <SubCommand> [OPTION]... [ARG]..." << endl;
35 for (size_t i = 0; i < allOps.size(); ++i) {
36 auto desc = allOps[i].GetDescriptor();
37
38 // echo: <op seqs>\n
39 ss << allOps[i].GetName();
40
41 // echo: help msgs\n\n
42 if (desc.funcGenHelpMsg) {
43 ss << desc.funcGenHelpMsg() << endl;
44 }
45 if (i != allOps.size() - 1) {
46 ss << endl;
47 }
48 }
49 printf("%s", ss.str().c_str());
50 return 0;
51 }
52
HelpRegister()53 bool HelpRegister()
54 {
55 return ToolsOp::Register(ToolsOp{ ToolsOp::Descriptor {
56 .opName = {"help"},
57 .funcGenHelpMsg = GenHelpMsg,
58 .funcExec = Exec,
59 } });
60 }
61 } // namespace OHOS::FileManagement::Backup