69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
#include <mbgl/util/io.hpp>
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#include <cstdio>
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#include <cerrno>
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#include <cstring>
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#include <iostream>
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#include <sstream>
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#include <fstream>
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namespace mbgl {
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namespace util {
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IOException::IOException(int err, const std::string& msg)
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: std::runtime_error(msg + ": " + std::strerror(errno)), code(err) {
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}
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void write_file(const std::string &filename, const std::string &data) {
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FILE *fd = fopen(filename.c_str(), "wb");
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if (fd) {
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fwrite(data.data(), sizeof(std::string::value_type), data.size(), fd);
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fclose(fd);
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} else {
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throw std::runtime_error(std::string("Failed to open file ") + filename);
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}
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}
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std::string read_file(const std::string &filename) {
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std::ifstream file(filename, std::ios::binary);
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if (file.good()) {
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std::stringstream data;
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data << file.rdbuf();
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return data.str();
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} else {
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throw std::runtime_error(std::string("Cannot read file ") + filename);
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}
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}
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optional<std::string> readFile(const std::string &filename) {
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std::ifstream file(filename, std::ios::binary);
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if (file.good()) {
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std::stringstream data;
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data << file.rdbuf();
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return data.str();
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}
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return {};
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}
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void deleteFile(const std::string& filename) {
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const int ret = std::remove(filename.c_str());
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if (ret != 0 && errno != ENOENT) {
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throw IOException(errno, "Could not delete file " + filename);
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}
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}
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void copyFile(const std::string& destination, const std::string& source) {
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std::ifstream src(source, std::ios::binary);
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if (!src.good()) {
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throw IOException(errno, "Cannot read file " + source);
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}
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std::ofstream dst(destination, std::ios::binary);
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if (!dst.good()) {
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throw IOException(errno, "Cannot write file " + destination);
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}
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dst << src.rdbuf();
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}
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} // namespace util
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} // namespace mbgl
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