1 | // $Id: utility.cc 2940 2013-01-04 05:42:32Z peter $ |
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2 | |
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3 | /* |
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4 | Copyright (C) 2005, 2006 Jari Häkkinen, Markus Ringnér |
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5 | Copyright (C) 2007, 2008 Jari Häkkinen, Peter Johansson |
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6 | Copyright (C) 2010 Peter Johansson |
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7 | Copyright (C) 2012 Jari Häkkinen, Peter Johansson |
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8 | |
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9 | This file is part of the yat library, http://dev.thep.lu.se/yat |
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10 | |
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11 | The yat library is free software; you can redistribute it and/or |
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12 | modify it under the terms of the GNU General Public License as |
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13 | published by the Free Software Foundation; either version 3 of the |
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14 | License, or (at your option) any later version. |
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15 | |
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16 | The yat library is distributed in the hope that it will be useful, |
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17 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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19 | General Public License for more details. |
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20 | |
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21 | You should have received a copy of the GNU General Public License |
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22 | along with yat. If not, see <http://www.gnu.org/licenses/>. |
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23 | */ |
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24 | |
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25 | #include <config.h> |
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26 | |
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27 | #include "utility.h" |
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28 | |
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29 | #include "Exception.h" |
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30 | #include "FileUtil.h" |
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31 | #include "stl_utility.h" |
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32 | |
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33 | #include <cassert> |
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34 | #include <fnmatch.h> |
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35 | #include <fstream> |
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36 | #include <sstream> |
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37 | #include <string> |
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38 | #include <sys/stat.h> |
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39 | |
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40 | namespace theplu { |
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41 | namespace yat { |
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42 | namespace utility { |
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43 | |
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44 | std::string basename(const std::string& path) |
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45 | { |
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46 | if (path.size()==1) |
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47 | return path; |
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48 | size_t pos = path.find_last_of('/'); |
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49 | if (pos==std::string::npos) |
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50 | return path; |
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51 | if (pos==path.size()-1) |
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52 | return basename(path.substr(0, path.size()-1)); |
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53 | return path.substr(pos+1); |
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54 | } |
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55 | |
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56 | |
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57 | void chdir(const std::string& dir) |
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58 | { |
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59 | if (::chdir(dir.c_str()) ) |
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60 | throw errno_error("chdir: " + dir + ":"); |
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61 | } |
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62 | |
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63 | |
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64 | void chmod(const std::string& filename, mode_t mode) |
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65 | { |
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66 | if (::chmod(filename.c_str(), mode)) |
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67 | throw errno_error("chmod: "); |
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68 | } |
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69 | |
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70 | |
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71 | void copy_file(const std::string& source, const std::string& target) |
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72 | { |
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73 | std::ifstream is; |
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74 | std::ofstream os; |
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75 | |
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76 | is.open(source.c_str(), std::ios::in | std::ios::binary); |
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77 | os.open(target.c_str(), std::ios::out | std::ios::binary); |
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78 | os << is.rdbuf(); |
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79 | if (!os.good()) { |
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80 | std::ostringstream ss; |
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81 | ss << "copy_file failed writing to '" << target << "'\n"; |
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82 | throw runtime_error(ss.str()); |
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83 | } |
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84 | if (is.bad() || is.fail()) { |
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85 | std::ostringstream ss; |
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86 | ss << "copy_file failed reading from '" << source << "'\n"; |
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87 | throw runtime_error(ss.str()); |
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88 | } |
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89 | is.close(); |
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90 | os.close(); |
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91 | |
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92 | // copy permissions |
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93 | struct stat nodestat; |
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94 | stat(source.c_str(), &nodestat); |
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95 | chmod(target.c_str(), nodestat.st_mode); |
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96 | } |
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97 | |
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98 | |
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99 | std::string dirname(const std::string& path) |
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100 | { |
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101 | if (path.size()==1) { |
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102 | if (path=="/") |
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103 | return path; |
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104 | else |
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105 | return "."; |
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106 | } |
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107 | assert(path.size()>=2); |
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108 | size_t pos = path.find_last_of('/', path.size()-2); |
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109 | if (pos==std::string::npos) |
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110 | return "."; |
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111 | if (pos==0) |
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112 | return "/"; |
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113 | return path.substr(0,pos); |
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114 | } |
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115 | |
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116 | |
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117 | bool fnmatch(const std::string& pattern, const std::string& str, int flags) |
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118 | { |
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119 | int res = ::fnmatch(pattern.c_str(), str.c_str(), flags); |
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120 | if (res==0) |
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121 | return true; |
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122 | if (res!=FNM_NOMATCH) { |
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123 | std::stringstream ss; |
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124 | ss << "fnmatch(" << pattern << ", " << str << ")"; |
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125 | throw runtime_error(ss.str()); |
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126 | } |
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127 | return false; |
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128 | } |
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129 | |
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130 | |
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131 | bool is_double(const std::string& s) |
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132 | { |
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133 | return is<double>(s); |
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134 | } |
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135 | |
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136 | |
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137 | bool is_equal(std::string s, std::string other) |
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138 | { |
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139 | std::stringstream ss(s); |
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140 | std::string s2; |
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141 | ss >> s2; // to trim surrounding whitespaces |
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142 | to_lower(s2); |
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143 | if (s2!=other) |
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144 | return false; |
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145 | // Check that nothing is left on stream |
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146 | std::string s3; |
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147 | ss >> s3; |
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148 | return s3.empty(); |
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149 | } |
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150 | |
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151 | |
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152 | bool is_float(const std::string& s) |
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153 | { |
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154 | return is<float>(s); |
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155 | } |
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156 | |
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157 | |
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158 | bool is_int(const std::string& s) |
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159 | { |
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160 | return is<int>(s); |
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161 | } |
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162 | |
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163 | bool is_nan(const std::string& s) |
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164 | { |
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165 | return is_equal(s, "nan"); |
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166 | } |
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167 | |
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168 | |
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169 | void mkdir(const std::string& dir, mode_t mode) |
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170 | { |
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171 | int code = ::mkdir(dir.c_str(), mode); |
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172 | if (code){ |
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173 | std::stringstream ss; |
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174 | ss << "mkdir: '" << dir << "': "; |
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175 | throw yat::utility::errno_error(ss.str()); |
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176 | } |
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177 | } |
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178 | |
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179 | |
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180 | void mkdir_p(const std::string& dir, mode_t mode) |
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181 | { |
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182 | if (FileUtil(dir).exists()) |
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183 | return; |
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184 | mkdir_p(dirname(dir), mode); |
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185 | mkdir(dir, mode); |
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186 | } |
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187 | |
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188 | |
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189 | }}} // end of namespace utility, yat and thep |
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