132 lines
2.9 KiB
C++

#include "./filesystem.hpp"
#include "../platform/folders.hpp"
#include <filesystem>
namespace fs = std::filesystem;
namespace mijin
{
//
// internal defines
//
//
// internal constants
//
//
// internal types
//
//
// internal variables
//
//
// internal functions
//
namespace
{
void doGetFileInfo(const fs::path& stlPath, FileInfo& outInfo)
{
std::error_code err;
outInfo.isFolder = fs::is_directory(stlPath, err);
outInfo.isSymlink = fs::is_symlink(stlPath, err);
outInfo.isSpecial = !outInfo.isFolder && !fs::is_regular_file(stlPath, err);
outInfo.isHidden = stlPath.c_str()[0] == '.'; // at least for Linux
if (outInfo.isFolder)
{
const fs::directory_iterator dirIt(stlPath, err);
if (err != std::error_code{})
{
outInfo.size = std::distance(dirIt, fs::directory_iterator());
}
else
{
outInfo.size = 0;
}
}
else if (!outInfo.isSpecial)
{
outInfo.size = fs::file_size(stlPath, err);
if (err)
{
outInfo.size = 0;
}
}
}
}
//
// public functions
//
std::vector<FolderEntry> OSFileSystemAdapter::listFiles(PathView folder)
{
std::vector<FolderEntry> entries;
std::error_code err;
const fs::path stlFolder(folder.stringView());
const fs::directory_iterator iterator(stlFolder, fs::directory_options::skip_permission_denied, err);
if (err) {
return {}; // TODO: propagate?
}
for (const fs::directory_entry& stlEntry : iterator)
{
FolderEntry& entry = entries.emplace_back();
entry.path = stlEntry.path().generic_string();
entry.info.exists = true;
doGetFileInfo(stlEntry.path(), entry.info);
}
return entries;
}
FileInfo OSFileSystemAdapter::getFileInfo(PathView file)
{
const fs::path stlFile(file.stringView());
FileInfo info = {};
std::error_code err;
info.exists = fs::exists(stlFile, err);
if (info.exists)
{
doGetFileInfo(fs::path(file.stringView()), info);
}
return info;
}
Optional<NativePath> OSFileSystemAdapter::getNativePath(PathView file)
{
return NativePath(file);
}
StreamError OSFileSystemAdapter::open(PathView path, FileOpenMode mode, std::unique_ptr<Stream>& outStream)
{
const PathView::string_view_t pathSv = path.stringView();
char* pathStr = static_cast<char*>(alloca(pathSv.size() + 1));
std::memcpy(pathStr, pathSv.data(), pathSv.size());
pathStr[pathSv.size()] = '\0';
auto stream = std::make_unique<FileStream>();
const StreamError error = stream->open(pathStr, mode);
if (error != StreamError::SUCCESS) {
return error;
}
outStream = std::move(stream);
return StreamError::SUCCESS;
}
OSFileSystemAdapter& OSFileSystemAdapter::getInstance() // static
{
static OSFileSystemAdapter instance;
return instance;
}
} // namespace mijin