FS.cpp

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#include <sourcepp/FS.h>
 
#include <FileStream.h>
 
using namespace sourcepp;
 
std::vector<std::byte> fs::readFileBuffer(const std::filesystem::path& filepath, std::size_t startOffset) {
    FileStream stream{filepath};
    if (!stream) {
        return {};
    }
    stream.seek_in_u(startOffset);
    return stream.read_bytes(std::filesystem::file_size(filepath) - startOffset);
}
 
std::vector<std::byte> fs::readFileBuffer(const std::filesystem::path& filepath, bool& exists, std::size_t startOffset) {
    auto buffer = readFileBuffer(filepath, startOffset);
    exists = !buffer.empty() || std::filesystem::exists(filepath);
    return buffer;
}
 
std::string fs::readFileText(const std::filesystem::path& filepath, std::size_t startOffset) {
    FileStream stream{filepath};
    if (!stream) {
        return {};
    }
    stream.seek_in_u(startOffset);
    return stream.read_string();
}
 
std::string fs::readFileText(const std::filesystem::path& filepath, bool& exists, std::size_t startOffset) {
    auto text = readFileText(filepath, startOffset);
    exists = !text.empty() || std::filesystem::exists(filepath);
    return text;
}
 
bool fs::writeFileBuffer(const std::filesystem::path& filepath, std::span<const std::byte> buffer) {
    FileStream stream{filepath, FileStream::OPT_TRUNCATE | FileStream::OPT_CREATE_IF_NONEXISTENT};
    if (!stream) {
        return false;
    }
    stream.seek_out(0).write(buffer);
    return true;
}
 
bool fs::writeFileText(const std::filesystem::path& filepath, std::string_view text) {
    FileStream stream{filepath, FileStream::OPT_TRUNCATE | FileStream::OPT_CREATE_IF_NONEXISTENT};
    if (!stream) {
        return false;
    }
    stream.seek_out(0).write(text, false);
    return true;
}