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OpenAssetTools/src/ObjCommon/SearchPath/SearchPathFilesystem.cpp
T

131 lines
3.9 KiB
C++

#include "SearchPathFilesystem.h"
#include "Utils/Logging/Log.h"
#include <algorithm>
#include <filesystem>
#include <format>
#include <fstream>
namespace fs = std::filesystem;
namespace
{
bool CheckOptionsPrefix(std::string& prefix, std::string& path)
{
if (prefix.empty())
return true;
const auto combinedPath = fs::path(path) / prefix;
if (fs::status(combinedPath).type() == std::filesystem::file_type::directory)
{
prefix = std::string();
path = combinedPath.string();
return true;
}
const auto parentDir = combinedPath.parent_path();
if (!parentDir.empty())
{
if (fs::status(parentDir).type() != std::filesystem::file_type::directory)
return false;
path = parentDir.string();
prefix = combinedPath.string();
}
return true;
}
} // namespace
SearchPathFilesystem::SearchPathFilesystem(std::string path)
: m_path(std::move(path))
{
}
const std::string& SearchPathFilesystem::GetPath()
{
return m_path;
}
SearchPathOpenFile SearchPathFilesystem::Open(const std::string& fileName)
{
const auto filePath = fs::path(m_path).append(fileName);
std::ifstream file(filePath.string(), std::fstream::in | std::fstream::binary);
if (file.is_open())
return SearchPathOpenFile(std::make_unique<std::ifstream>(std::move(file)), static_cast<int64_t>(file_size(filePath)));
return SearchPathOpenFile();
}
void SearchPathFilesystem::Find(const SearchPathSearchOptions& options, const std::function<void(const std::string&)>& callback)
{
std::string prefix = options.m_prefix;
std::string path = m_path;
if (!CheckOptionsPrefix(prefix, path))
return;
try
{
if (options.m_should_include_subdirectories)
{
std::filesystem::recursive_directory_iterator iterator(path);
for (const auto entry = begin(iterator); iterator != end(iterator); ++iterator)
{
if (!entry->is_regular_file())
continue;
auto entryPath = entry->path();
if (!prefix.empty() && !entryPath.string().starts_with(prefix))
continue;
if (options.m_filter_extensions && entryPath.extension().string() != options.m_extension)
continue;
const auto absolutePath = absolute(entryPath);
if (options.m_absolute_paths)
{
callback(absolutePath.string());
}
else
{
const auto relativePath = fs::relative(entryPath, m_path);
callback(relativePath.string());
}
}
}
else
{
std::filesystem::directory_iterator iterator(path);
for (const auto entry = begin(iterator); iterator != end(iterator); ++iterator)
{
if (!entry->is_regular_file())
continue;
auto entryPath = entry->path();
if (!prefix.empty() && !entryPath.string().starts_with(prefix))
continue;
if (options.m_filter_extensions && entryPath.extension().string() != options.m_extension)
continue;
const auto absolutePath = absolute(entryPath);
if (options.m_absolute_paths)
{
callback(absolutePath.string());
}
else
{
const auto relativePath = fs::relative(absolutePath, m_path);
callback(relativePath.string());
}
}
}
}
catch (std::filesystem::filesystem_error& e)
{
con::error("Directory Iterator threw error when trying to find files: \"{}\"", e.what());
}
}