Filewatch 
| Branch | Status |
|---|---|
| Master |  |
| Develop |  |
Single header folder/file watcher in C++11 for windows and linux, with optional regex filtering
Install:
Drop FileWatch.hpp in to your include path, and you should be good to go.
Examples:
On linux or none unicode windows change std::wstring for std::string or std::filesystem (boost should work as well).
Simple:
filewatch::FileWatch<std::wstring> watch(
L"C:/Users/User/Desktop/Watch/Test"s,
[](const std::wstring& path, const filewatch::Event change_type) {
std::wcout << path << L"\n";
}
);Change Type:
filewatch::FileWatch<std::wstring> watch(
L"C:/Users/User/Desktop/Watch/Test"s,
[](const std::wstring& path, const filewatch::Event change_type) {
std::wcout << path << L" : ";
switch (change_type)
{
case filewatch::Event::added:
std::cout << "The file was added to the directory." << '\n';
break;
case filewatch::Event::removed:
std::cout << "The file was removed from the directory." << '\n';
break;
case filewatch::Event::modified:
std::cout << "The file was modified. This can be a change in the time stamp or attributes." << '\n';
break;
case filewatch::Event::renamed_old:
std::cout << "The file was renamed and this is the old name." << '\n';
break;
case filewatch::ChangeType::renamed_new:
std::cout << "The file was renamed and this is the new name." << '\n';
break;
};
}
);Regex:
Using the standard regex libary you can filter the file paths that will trigger. When using wstring you will have to use std::wregex
filewatch::FileWatch<std::wstring> watch(
L"C:/Users/User/Desktop/Watch/Test"s,
std::wregex(L"test.*"),
[](const std::wstring& path, const filewatch::Event change_type) {
std::wcout << path << L"\n";
}
);Using std::filesystem:
filewatch::FileWatch<std::filesystem::path> watch(
L"C:/Users/User/Desktop/Watch/Test"s,
[](const std::filesystem::path& path, const filewatch::Event change_type) {
std::wcout << std::filesystem::absolute(path) << L"\n";
}
);Works with relative paths:
filewatch::FileWatch<std::filesystem::path> watch(
L"./"s,
[](const std::filesystem::path& path, const filewatch::Event change_type) {
std::wcout << std::filesystem::absolute(path) << L"\n";
}
);Single file watch:
filewatch::FileWatch<std::wstring> watch(
L"./test.txt"s,
[](const std::wstring& path, const filewatch::Event change_type) {
std::wcout << path << L"\n";
}
);
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