99 lines
2.4 KiB
C++
99 lines
2.4 KiB
C++
#include "files.h"
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#include <fstream>
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#include <iostream>
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#include <memory>
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#include <stdint.h>
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#include <stdexcept>
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#include "../coders/json.h"
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namespace fs = std::filesystem;
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bool files::write_bytes(fs::path filename, const char* data, size_t size) {
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std::ofstream output(filename, std::ios::binary);
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if (!output.is_open())
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return false;
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output.write(data, size);
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output.close();
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return true;
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}
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uint files::append_bytes(fs::path filename, const char* data, size_t size) {
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std::ofstream output(filename, std::ios::binary | std::ios::app);
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if (!output.is_open())
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return 0;
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uint position = output.tellp();
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output.write(data, size);
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output.close();
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return position;
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}
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bool files::read(fs::path filename, char* data, size_t size) {
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std::ifstream output(filename, std::ios::binary);
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if (!output.is_open())
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return false;
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output.read(data, size);
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output.close();
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return true;
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}
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char* files::read_bytes(fs::path filename, size_t& length) {
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std::ifstream input(filename, std::ios::binary);
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if (!input.is_open())
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return nullptr;
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input.seekg(0, std::ios_base::end);
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length = input.tellg();
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input.seekg(0, std::ios_base::beg);
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std::unique_ptr<char> data(new char[length]);
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input.read(data.get(), length);
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input.close();
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return data.release();
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}
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std::string files::read_string(fs::path filename) {
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size_t size;
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std::unique_ptr<char> chars (read_bytes(filename, size));
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if (chars == nullptr) {
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throw std::runtime_error("could not to load file '"+
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filename.string()+"'");
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}
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return std::string(chars.get(), size);
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}
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bool files::write_string(fs::path filename, const std::string content) {
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std::ofstream file(filename);
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if (!file) {
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return false;
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}
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file << content;
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return true;
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}
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json::JObject* files::read_json(fs::path file) {
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std::string text = files::read_string(file);
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try {
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return json::parse(file.string(), text);
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} catch (const parsing_error& error) {
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std::cerr << error.errorLog() << std::endl;
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throw std::runtime_error("could not to parse "+file.string());
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}
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}
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std::vector<std::string> files::read_list(std::filesystem::path filename) {
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std::ifstream file(filename);
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if (!file) {
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throw std::runtime_error("could not to open file "+filename.u8string());
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}
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std::vector<std::string> lines;
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std::string line;
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while (std::getline(file, line)) {
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if (line.length() == 0)
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continue;
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if (line[0] == '#')
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continue;
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lines.push_back(line);
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}
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return lines;
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}
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