added wtar.cpp
hamigaki/trunk/libs/archivers/example/Jamfile.v2 (diff)
hamigaki/trunk/libs/archivers/example/wtar.cpp (diff)| @@ -0,0 +1,181 @@ | ||
| 1 | +// wtar.cpp: a simple tar archiver (Unicode version) | |
| 2 | + | |
| 3 | +// Copyright Takeshi Mouri 2008. | |
| 4 | +// Distributed under the Boost Software License, Version 1.0. | |
| 5 | +// (See accompanying file LICENSE_1_0.txt or copy at | |
| 6 | +// http://www.boost.org/LICENSE_1_0.txt) | |
| 7 | + | |
| 8 | +// See http://hamigaki.sourceforge.jp/libs/archivers for library home page. | |
| 9 | + | |
| 10 | +#include <boost/config.hpp> | |
| 11 | + | |
| 12 | +#include <hamigaki/archivers/tar_file.hpp> | |
| 13 | +#include <hamigaki/filesystem/operations.hpp> | |
| 14 | +#include <hamigaki/iostreams/device/file_descriptor.hpp> | |
| 15 | +#include <boost/filesystem/fstream.hpp> | |
| 16 | +#include <boost/iostreams/copy.hpp> | |
| 17 | +#include <clocale> | |
| 18 | +#include <exception> | |
| 19 | +#include <iostream> | |
| 20 | +#include <vector> | |
| 21 | + | |
| 22 | +#if defined(BOOST_WINDOWS) | |
| 23 | +#elif defined(BOOST_HAS_UNISTD_H) | |
| 24 | + #include <grp.h> | |
| 25 | + #include <pwd.h> | |
| 26 | + #include <unistd.h> | |
| 27 | +#endif | |
| 28 | + | |
| 29 | +#if defined(BOOST_WINDOWS) | |
| 30 | + #include <windows.h> | |
| 31 | + #if !defined(__GNUC__) | |
| 32 | + #pragma comment(lib, "shell32.lib") | |
| 33 | + #endif | |
| 34 | +#else | |
| 35 | + #include <cstdlib> | |
| 36 | +#endif | |
| 37 | + | |
| 38 | +namespace ar = hamigaki::archivers; | |
| 39 | +namespace fs_ex = hamigaki::filesystem; | |
| 40 | +namespace io_ex = hamigaki::iostreams; | |
| 41 | +namespace fs = boost::filesystem; | |
| 42 | +namespace io = boost::iostreams; | |
| 43 | + | |
| 44 | +#if defined(BOOST_WINDOWS) | |
| 45 | +class scoped_local_memory : private boost::noncopyable | |
| 46 | +{ | |
| 47 | +public: | |
| 48 | + explicit scoped_local_memory(void* p) : ptr_(p) | |
| 49 | + { | |
| 50 | + } | |
| 51 | + | |
| 52 | + ~scoped_local_memory() | |
| 53 | + { | |
| 54 | + if (ptr_) | |
| 55 | + ::LocalFree(ptr_); | |
| 56 | + } | |
| 57 | + | |
| 58 | +private: | |
| 59 | + void* ptr_; | |
| 60 | +}; | |
| 61 | + | |
| 62 | +void get_cmd_line_args(int, char**, std::vector<std::wstring>& args) | |
| 63 | +{ | |
| 64 | + int argc = 0; | |
| 65 | + wchar_t** argv = ::CommandLineToArgvW(::GetCommandLineW(), &argc); | |
| 66 | + scoped_local_memory guard(argv); | |
| 67 | + args.assign(argv, argv+argc); | |
| 68 | +} | |
| 69 | +#else | |
| 70 | +std::wstring narrow_to_wide(const char* s) | |
| 71 | +{ | |
| 72 | + std::size_t size = std::mbstowcs(0, s, 0); | |
| 73 | + if (size == static_cast<std::size_t>(-1)) | |
| 74 | + throw std::runtime_error("failed mbstowcs()"); | |
| 75 | + | |
| 76 | + boost::scoped_array<wchar_t> buf(new wchar_t[size+1]); | |
| 77 | + size = std::mbstowcs(buf.get(), s, size+1); | |
| 78 | + if (size == static_cast<std::size_t>(-1)) | |
| 79 | + throw std::runtime_error("failed mbstowcs()"); | |
| 80 | + | |
| 81 | + return std::wstring(buf.get(), size); | |
| 82 | +} | |
| 83 | + | |
| 84 | +void get_cmd_line_args(int argc, char** argv, std::vector<std::wstring>& args) | |
| 85 | +{ | |
| 86 | + std::vector<std::wstring> tmp; | |
| 87 | + tmp.reserve(count); | |
| 88 | + std::transform(argv, argv+argc, std::back_inserter(tmp), &narrow_to_wide); | |
| 89 | + args.swap(tmp); | |
| 90 | +} | |
| 91 | +#endif | |
| 92 | + | |
| 93 | +int main(int argc, char* argv[]) | |
| 94 | +{ | |
| 95 | + try | |
| 96 | + { | |
| 97 | + if (argc < 3) | |
| 98 | + { | |
| 99 | + std::cerr << "Usage: wtar (archive) (filename) ..." << std::endl; | |
| 100 | + return 1; | |
| 101 | + } | |
| 102 | + | |
| 103 | + std::setlocale(LC_ALL, ""); | |
| 104 | + | |
| 105 | + std::vector<std::wstring> args; | |
| 106 | + get_cmd_line_args(argc, argv, args); | |
| 107 | + | |
| 108 | + // file_descriptor_sink supports 64bit offset | |
| 109 | + ar::basic_tar_file_sink<io_ex::file_descriptor_sink,fs::wpath> | |
| 110 | + tar((io_ex::file_descriptor_sink( | |
| 111 | + std::string(argv[1]), BOOST_IOS::binary))); | |
| 112 | + | |
| 113 | + for (int i = 2; i < argc; ++i) | |
| 114 | + { | |
| 115 | + ar::tar::wheader head; | |
| 116 | + head.format = ar::tar::pax; | |
| 117 | + head.path = args[i]; | |
| 118 | + | |
| 119 | + const fs_ex::file_status& s = fs_ex::symlink_status(head.path); | |
| 120 | + | |
| 121 | + if (is_symlink(s)) | |
| 122 | + { | |
| 123 | + head.type_flag = ar::tar::type_flag::symlink; | |
| 124 | + head.link_path = fs_ex::symlink_target(head.path); | |
| 125 | + } | |
| 126 | + else if (is_directory(s)) | |
| 127 | + head.type_flag = ar::tar::type_flag::directory; | |
| 128 | + else | |
| 129 | + head.file_size = s.file_size(); | |
| 130 | + | |
| 131 | + head.modified_time = s.last_write_time(); | |
| 132 | + head.access_time = s.last_access_time(); | |
| 133 | + | |
| 134 | + if (s.has_last_change_time()) | |
| 135 | + head.change_time = s.last_change_time(); | |
| 136 | + | |
| 137 | + if (s.has_permissions()) | |
| 138 | + head.permissions = s.permissions(); | |
| 139 | + | |
| 140 | + if (s.has_uid() && s.has_gid()) | |
| 141 | + { | |
| 142 | + head.uid = s.uid(); | |
| 143 | + head.gid = s.gid(); | |
| 144 | + } | |
| 145 | + | |
| 146 | +#if defined(BOOST_WINDOWS) | |
| 147 | + head.user_name = L"root"; | |
| 148 | + head.group_name = L"root"; | |
| 149 | +#elif defined(BOOST_HAS_UNISTD_H) | |
| 150 | + if (s.has_uid()) | |
| 151 | + { | |
| 152 | + if (passwd* p = ::getpwuid(s.uid())) | |
| 153 | + head.user_name = p->pw_name; | |
| 154 | + } | |
| 155 | + if (s.has_gid()) | |
| 156 | + { | |
| 157 | + if (group* p = ::getgrgid(s.gid())) | |
| 158 | + head.group_name = p->gr_name; | |
| 159 | + } | |
| 160 | +#endif | |
| 161 | + | |
| 162 | + tar.create_entry(head); | |
| 163 | + | |
| 164 | + if (!fs::is_directory(head.path)) | |
| 165 | + { | |
| 166 | + fs::ifstream is(head.path, std::ios_base::binary); | |
| 167 | + if (!is) | |
| 168 | + throw std::runtime_error("cannot open file"); | |
| 169 | + | |
| 170 | + io::copy(is, tar); | |
| 171 | + } | |
| 172 | + } | |
| 173 | + tar.close_archive(); | |
| 174 | + return 0; | |
| 175 | + } | |
| 176 | + catch (const std::exception& e) | |
| 177 | + { | |
| 178 | + std::cerr << "Error: " << e.what() << std::endl; | |
| 179 | + } | |
| 180 | + return 1; | |
| 181 | +} |
