szaszm commented on a change in pull request #1283:
URL: https://github.com/apache/nifi-minifi-cpp/pull/1283#discussion_r839526435
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File path: libminifi/include/utils/file/FileUtils.h
##########
@@ -171,6 +179,19 @@ inline const
std::optional<std::filesystem::file_time_type> last_write_time(cons
return std::nullopt;
}
+inline std::optional<std::string>
get_last_modified_time_formatted_string(const std::string& path, const
std::string& format_string) {
+ auto last_write = last_write_time(path);
+ if (!last_write) {
+ return std::nullopt;
+ }
+ auto last_write_time_t = to_time_t(*last_write);
+ std::array<char, 128U> result;
+ if (std::strftime(result.data(), result.size(), format_string.c_str(),
gmtime(&last_write_time_t)) != 0) {
+ return std::string(result.data());
+ }
+ return std::nullopt;
Review comment:
For the second problem, you can use `utils::flatMap` instead.
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