Mercurial > irccd
annotate common/filesystem.cpp @ 25:afff3f16d86e
Docs: explain better plugin-reload, #421
| author | David Demelier <markand@malikania.fr> |
|---|---|
| date | Tue, 16 Feb 2016 13:58:29 +0100 |
| parents | 03068f5ed79d |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * filesystem.cpp -- some file system operation | |
| 3 * | |
| 4 * Copyright (c) 2013-2016 David Demelier <markand@malikania.fr> | |
| 5 * | |
| 6 * Permission to use, copy, modify, and/or distribute this software for any | |
| 7 * purpose with or without fee is hereby granted, provided that the above | |
| 8 * copyright notice and this permission notice appear in all copies. | |
| 9 * | |
| 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
| 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
| 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
| 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
| 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
| 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
| 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
| 17 */ | |
| 18 | |
| 19 #include <cerrno> | |
| 20 #include <cstdio> | |
| 21 #include <cstdlib> | |
| 22 #include <cstring> | |
| 23 #include <stdexcept> | |
| 24 #include <sstream> | |
| 25 | |
| 26 #include <irccd-config.h> | |
| 27 | |
| 28 #if defined(IRCCD_SYSTEM_WINDOWS) | |
| 29 # include <direct.h> | |
| 30 # include <shlwapi.h> | |
| 31 #else | |
| 32 # include <sys/stat.h> | |
| 33 # include <climits> | |
| 34 # include <unistd.h> | |
| 35 # include <libgen.h> | |
| 36 #endif | |
| 37 | |
| 38 #include "filesystem.h" | |
| 39 | |
| 40 namespace irccd { | |
| 41 | |
| 42 namespace fs { | |
| 43 | |
| 44 #if defined(IRCCD_SYSTEM_WINDOWS) | |
|
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03068f5ed79d
Misc: various style issues, #419
David Demelier <markand@malikania.fr>
parents:
0
diff
changeset
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45 const char Separator('\\'); |
| 0 | 46 #else |
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03068f5ed79d
Misc: various style issues, #419
David Demelier <markand@malikania.fr>
parents:
0
diff
changeset
|
47 const char Separator('/'); |
| 0 | 48 #endif |
| 49 | |
| 50 std::string baseName(std::string path) | |
| 51 { | |
| 52 #if defined(IRCCD_SYSTEM_WINDOWS) | |
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03068f5ed79d
Misc: various style issues, #419
David Demelier <markand@malikania.fr>
parents:
0
diff
changeset
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53 std::size_t pos; |
| 0 | 54 |
| 55 pos = path.find_last_of('\\'); | |
| 56 if (pos == std::string::npos) | |
| 57 pos = path.find_last_of('/'); | |
| 58 if (pos == std::string::npos) | |
| 59 return path; | |
| 60 | |
| 61 return path.substr(pos + 1); | |
| 62 #else | |
| 63 return basename(&path[0]); | |
| 64 #endif | |
| 65 } | |
| 66 | |
| 67 std::string dirName(std::string path) | |
| 68 { | |
| 69 #if defined(IRCCD_SYSTEM_WINDOWS) | |
| 70 std::size_t pos; | |
| 71 | |
| 72 pos = path.find_last_of('\\'); | |
| 73 if (pos == std::string::npos) | |
| 74 pos = path.find_last_of('/'); | |
| 75 if (pos == std::string::npos) | |
| 76 return path; | |
| 77 | |
| 78 return path.substr(0, pos); | |
| 79 #else | |
| 80 return dirname(&path[0]); | |
| 81 #endif | |
| 82 } | |
| 83 | |
| 84 bool isAbsolute(const std::string &path) noexcept | |
| 85 { | |
| 86 #if defined(IRCCD_SYSTEM_WINDOWS) | |
| 87 return !isRelative(path); | |
| 88 #else | |
| 89 return path.size() > 0 && path[0] == '/'; | |
| 90 #endif | |
| 91 } | |
| 92 | |
| 93 bool isRelative(const std::string &path) noexcept | |
| 94 { | |
| 95 #if defined(IRCCD_SYSTEM_WINDOWS) | |
| 96 return PathIsRelativeA(path.c_str()); | |
| 97 #else | |
| 98 return !isAbsolute(path); | |
| 99 #endif | |
| 100 } | |
| 101 | |
| 102 bool exists(const std::string &path) | |
| 103 { | |
| 104 #if defined(HAVE_ACCESS) | |
| 105 return access(path.c_str(), F_OK) == 0; | |
| 106 #elif defined(HAVE_STAT) | |
| 107 struct stat st; | |
| 108 | |
| 109 return (stat(path.c_str(), &st) == 0); | |
| 110 #else | |
| 111 // worse fallback | |
| 112 std::FILE *file = std::fopen(path.c_str(), "r"); | |
| 113 bool result; | |
| 114 | |
| 115 if (file != nullptr) { | |
| 116 result = true; | |
| 117 std::fclose(file); | |
| 118 } else { | |
| 119 result = false; | |
| 120 } | |
| 121 | |
| 122 return result; | |
| 123 #endif | |
| 124 } | |
| 125 | |
| 126 void mkdir(const std::string &dir, int mode) | |
| 127 { | |
| 128 std::ostringstream oss; | |
| 129 | |
| 130 oss << "mkdir: "; | |
| 131 | |
|
23
03068f5ed79d
Misc: various style issues, #419
David Demelier <markand@malikania.fr>
parents:
0
diff
changeset
|
132 for (std::size_t i = 0; i < dir.length(); ++i) { |
| 0 | 133 if (dir[i] != '/' && dir[i] != '\\') |
| 134 continue; | |
| 135 | |
| 136 std::string part = dir.substr(0, i); | |
| 137 if (part.length() <= 0 || exists(part)) | |
| 138 continue; | |
| 139 | |
| 140 #if defined(IRCCD_SYSTEM_WINDOWS) | |
| 141 if (::_mkdir(part.c_str()) < 0) { | |
| 142 #else | |
| 143 if (::mkdir(part.c_str(), mode) < 0) { | |
| 144 #endif | |
| 145 oss << part << ": " << std::strerror(errno); | |
| 146 throw std::runtime_error(oss.str()); | |
| 147 } | |
| 148 } | |
| 149 | |
| 150 // Last part | |
| 151 #if defined(IRCCD_SYSTEM_WINDOWS) | |
| 152 if (::_mkdir(dir.c_str()) < 0) { | |
| 153 #else | |
| 154 if (::mkdir(dir.c_str(), mode) < 0) { | |
| 155 #endif | |
| 156 oss << dir << ": " << std::strerror(errno); | |
| 157 throw std::runtime_error(oss.str()); | |
| 158 } | |
| 159 | |
| 160 #if defined(IRCCD_SYSTEM_WINDOWS) | |
| 161 // Windows's mkdir does not use mode. | |
| 162 (void)mode; | |
| 163 #endif | |
| 164 } | |
| 165 | |
| 166 std::string cwd() | |
| 167 { | |
| 168 #if defined(IRCCD_SYSTEM_WINDOWS) | |
| 169 char path[MAX_PATH]; | |
| 170 | |
| 171 if (!GetCurrentDirectoryA(sizeof (path), path)) | |
| 172 throw std::runtime_error("failed to get current working directory"); | |
| 173 | |
| 174 return path; | |
| 175 #else | |
| 176 char path[PATH_MAX]; | |
| 177 | |
| 178 if (getcwd(path, sizeof (path)) == nullptr) | |
| 179 throw std::runtime_error(std::strerror(errno)); | |
| 180 | |
| 181 return path; | |
| 182 #endif | |
| 183 } | |
| 184 | |
| 185 } // !fs | |
| 186 | |
| 187 } // !irccd |