xref: /openbmc/phosphor-ipmi-flash/bmc/fs.cpp (revision bfcf1326a9e1a3768b3819ee1f0b888ff750c5be)
1 /*
2  * Copyright 2019 Google Inc.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *     http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #include "fs.hpp"
18 
19 #include <filesystem>
20 #include <regex>
21 #include <string>
22 #include <system_error>
23 #include <vector>
24 
25 namespace ipmi_flash
26 {
27 namespace fs = std::filesystem;
28 
29 std::vector<std::string> GetJsonList(const std::string& directory)
30 {
31     std::vector<std::string> output;
32 
33     try
34     {
35         for (const auto& p : fs::recursive_directory_iterator(directory))
36         {
37             auto ps = p.path().string();
38 
39             /** TODO: openbmc/phosphor-ipmi-blobs/blob/de8a16e2e8/fs.cpp#L27 is
40              * nicer, may be worth finding a way to make this into a util.
41              */
42             if (std::regex_match(ps, std::regex(".+.json$")))
43             {
44                 output.push_back(ps);
45             }
46         }
47     }
48     catch (const fs::filesystem_error& e)
49     {
50         // Ignore missing directories and just return an empty list
51         if (e.code() == std::error_code(ENOENT, std::generic_category()))
52         {
53             return output;
54         }
55         throw;
56     }
57 
58     return output;
59 }
60 
61 } // namespace ipmi_flash
62