Mercurial > octave
annotate liboctave/system/oct-env.cc @ 27838:659acfaaf0c9
Use APPDATA for startup file location on Windows (bug #40444).
* oct-env.cc (do_get_user_config_directory): Get location of APPDATA instead of
LOCALAPPDATA folder.
* basic.txi, NEWS: Change documentation and announcement accordingly.
author | Markus Mützel <markus.muetzel@gmx.de> |
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date | Sun, 15 Dec 2019 12:35:12 +0100 |
parents | 8fd7d1d2a4ca |
children | b442ec6dda5c |
rev | line source |
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2926 | 1 /* |
2 | |
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3 Copyright (C) 1996-2019 John W. Eaton |
2926 | 4 |
5 This file is part of Octave. | |
6 | |
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7 Octave is free software: you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by |
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9 the Free Software Foundation, either version 3 of the License, or |
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10 (at your option) any later version. |
2926 | 11 |
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12 Octave is distributed in the hope that it will be useful, but |
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13 WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 GNU General Public License for more details. |
2926 | 16 |
17 You should have received a copy of the GNU General Public License | |
7016 | 18 along with Octave; see the file COPYING. If not, see |
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19 <https://www.gnu.org/licenses/>. |
2926 | 20 |
21 */ | |
22 | |
23 /* | |
24 | |
25 The functions listed below were adapted from a similar functions | |
26 from GNU Bash, the Bourne Again SHell, copyright (C) 1987, 1989, 1991 | |
27 Free Software Foundation, Inc. | |
28 | |
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29 octave::sys::env::do_absolute_pathname |
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30 octave::sys::env::do_base_pathname |
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31 octave::sys::env::do_chdir |
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32 octave::sys::env::do_getcwd |
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33 octave::sys::env::do_make_absolute |
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34 octave::sys::env::do_polite_directory_format |
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35 octave::sys::env::pathname_backup |
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37 */ |
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39 #if defined (HAVE_CONFIG_H) |
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40 # include "config.h" |
2926 | 41 #endif |
42 | |
4093 | 43 #include <cctype> |
2926 | 44 #include <cstdlib> |
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45 #include <cstring> |
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3504 | 47 #include <string> |
2926 | 48 |
4097 | 49 #include "file-ops.h" |
2926 | 50 #include "lo-error.h" |
51 #include "lo-sysdep.h" | |
52 #include "lo-utils.h" | |
53 #include "oct-env.h" | |
2934 | 54 #include "oct-passwd.h" |
2947 | 55 #include "oct-syscalls.h" |
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56 #include "set-program-name-wrapper.h" |
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57 #include "singleton-cleanup.h" |
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58 #include "unistd-wrappers.h" |
2926 | 59 |
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60 #if defined (OCTAVE_USE_WINDOWS_API) |
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61 # include "uniconv-wrappers.h" |
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62 |
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63 # include <windows.h> |
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64 # include <shlobj.h> |
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65 #endif |
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66 |
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67 namespace octave |
2926 | 68 { |
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69 namespace sys |
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70 { |
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71 env::env (void) |
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72 : follow_symbolic_links (true), verbatim_pwd (true), |
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73 current_directory (), prog_name (), prog_invocation_name (), |
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74 user_name (), host_name () |
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75 { |
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76 // Get a real value for the current directory. |
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77 do_getcwd (); |
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78 |
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79 // Etc. |
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80 do_get_user_name (); |
2926 | 81 |
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82 do_get_host_name (); |
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83 } |
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84 |
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85 env *env::instance = nullptr; |
2926 | 86 |
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87 bool |
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88 env::instance_ok (void) |
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89 { |
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90 bool retval = true; |
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91 |
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92 if (! instance) |
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93 { |
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94 instance = new env (); |
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95 singleton_cleanup_list::add (cleanup_instance); |
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96 } |
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98 return retval; |
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99 } |
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101 std::string |
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102 env::polite_directory_format (const std::string& name) |
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103 { |
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104 return (instance_ok ()) |
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105 ? instance->do_polite_directory_format (name) : ""; |
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106 } |
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107 |
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108 bool |
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109 env::absolute_pathname (const std::string& s) |
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110 { |
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111 return (instance_ok ()) |
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112 ? instance->do_absolute_pathname (s) : false; |
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113 } |
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114 |
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115 bool |
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116 env::rooted_relative_pathname (const std::string& s) |
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117 { |
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118 return (instance_ok ()) |
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119 ? instance->do_rooted_relative_pathname (s) : false; |
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120 } |
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122 std::string |
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123 env::base_pathname (const std::string& s) |
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124 { |
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125 return (instance_ok ()) |
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126 ? instance->do_base_pathname (s) : ""; |
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127 } |
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129 std::string |
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130 env::make_absolute (const std::string& s, const std::string& dot_path) |
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131 { |
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132 return (instance_ok ()) |
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133 ? instance->do_make_absolute (s, dot_path) : ""; |
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134 } |
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136 std::string |
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137 env::get_current_directory () |
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138 { |
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139 return (instance_ok ()) |
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140 ? instance->do_getcwd () : ""; |
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141 } |
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143 std::string |
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144 env::get_home_directory () |
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145 { |
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146 return (instance_ok ()) |
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147 ? instance->do_get_home_directory () : ""; |
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148 } |
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150 std::string |
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151 env::get_temp_directory () |
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152 { |
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153 return (instance_ok ()) |
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154 ? instance->do_get_temp_directory () : ""; |
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155 } |
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157 std::string |
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158 env::get_user_config_directory () |
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159 { |
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160 return (instance_ok ()) |
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161 ? instance->do_get_user_config_directory () : ""; |
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162 } |
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163 |
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164 std::string |
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165 env::get_program_name (void) |
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166 { |
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167 return (instance_ok ()) |
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168 ? instance->prog_name : ""; |
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169 } |
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171 std::string |
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172 env::get_program_invocation_name (void) |
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173 { |
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174 return (instance_ok ()) |
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175 ? instance->prog_invocation_name : ""; |
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176 } |
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178 void |
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179 env::set_program_name (const std::string& s) |
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180 { |
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181 if (instance_ok ()) |
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182 instance->do_set_program_name (s); |
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183 } |
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185 std::string |
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186 env::get_user_name (void) |
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187 { |
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188 return (instance_ok ()) |
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189 ? instance->do_get_user_name () : ""; |
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190 } |
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192 std::string |
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193 env::get_host_name (void) |
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194 { |
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195 return (instance_ok ()) |
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196 ? instance->do_get_host_name () : ""; |
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197 } |
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199 std::string |
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200 env::do_get_temp_directory (void) const |
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201 { |
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202 std::string tempd; |
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203 |
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204 #if defined (__MINGW32__) || defined (_MSC_VER) |
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205 |
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206 tempd = do_getenv ("TEMP"); |
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207 |
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208 if (tempd.empty ()) |
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209 tempd = do_getenv ("TMP"); |
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210 |
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211 #if defined (P_tmpdir) |
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212 if (tempd.empty ()) |
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213 tempd = P_tmpdir; |
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214 #endif |
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215 |
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216 // Some versions of MinGW and MSVC either don't define P_tmpdir, or |
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217 // define it to a single backslash. In such cases just use C:\temp. |
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218 if (tempd.empty () || tempd == R"(\)") |
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219 tempd = R"(c:\temp)"; |
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220 |
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221 #else |
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222 |
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223 tempd = do_getenv ("TMP"); |
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224 |
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225 #if defined (P_tmpdir) |
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226 if (tempd.empty ()) |
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227 tempd = P_tmpdir; |
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228 #else |
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229 if (tempd.empty ()) |
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230 tempd = "/tmp"; |
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231 #endif |
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232 |
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233 #endif |
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234 |
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235 return tempd; |
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236 } |
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237 |
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238 std::string |
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239 env::do_get_user_config_directory (void) const |
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240 { |
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241 std::string cfg_dir; |
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242 |
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243 #if defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) && defined (OCTAVE_USE_WINDOWS_API) |
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244 wchar_t path[MAX_PATH+1]; |
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245 if (SHGetFolderPathW (nullptr, CSIDL_APPDATA | CSIDL_FLAG_DONT_VERIFY, |
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246 nullptr, SHGFP_TYPE_CURRENT, path) == S_OK) |
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247 { |
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248 char *local_app_data = u8_from_wchar (path); |
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249 cfg_dir = local_app_data; |
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250 free (local_app_data); |
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251 } |
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252 #else |
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253 cfg_dir = do_getenv ("XDG_CONFIG_HOME"); |
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254 |
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255 if (cfg_dir.empty ()) |
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256 cfg_dir = do_get_home_directory () + sys::file_ops::dir_sep_str () |
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257 + ".config"; |
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258 #endif |
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259 |
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260 return cfg_dir; |
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261 } |
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262 |
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263 // FIXME: this leaves no way to distinguish between a |
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264 // variable that is not set and one that is set to the empty string. |
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265 // Is this a problem? |
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267 std::string |
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268 env::getenv (const std::string& name) |
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269 { |
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270 return (instance_ok ()) |
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271 ? instance->do_getenv (name) : ""; |
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272 } |
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274 void |
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275 env::putenv (const std::string& name, const std::string& value) |
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276 { |
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277 putenv_wrapper (name, value); |
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278 } |
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280 bool |
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281 env::have_x11_display (void) |
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282 { |
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283 std::string display = getenv ("DISPLAY"); |
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285 return ! display.empty (); |
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286 } |
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288 bool |
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289 env::chdir (const std::string& newdir) |
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290 { |
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291 return (instance_ok ()) |
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292 ? instance->do_chdir (newdir) : false; |
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293 } |
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295 void |
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296 env::do_set_program_name (const std::string& s) const |
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297 { |
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298 static bool initialized = false; |
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299 |
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300 if (! initialized) |
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301 { |
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302 // octave_set_program_name_wrapper returns a cleaned up |
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303 // version of the program name (stripping libtool's "lt-" |
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304 // prefix, for example). |
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305 |
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306 // The string passed to gnulib's ::set_program_name function must |
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307 // exist for the duration of the program so allocate a copy here |
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308 // instead of passing S.c_str () which only exists as long as the |
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309 // string object S. |
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310 |
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311 prog_invocation_name |
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312 = octave_set_program_name_wrapper (strsave (s.c_str ())); |
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313 |
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314 size_t pos |
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315 = prog_invocation_name.find_last_of (sys::file_ops::dir_sep_chars ()); |
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317 // Also keep a shortened version of the program name. |
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318 prog_name = (pos == std::string::npos |
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319 ? prog_invocation_name |
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320 : prog_invocation_name.substr (pos+1)); |
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321 |
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322 initialized = true; |
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323 } |
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324 } |
2926 | 325 |
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326 // Return a pretty pathname. If the first part of the pathname is the |
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327 // same as $HOME, then replace that with '~'. |
2926 | 328 |
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329 std::string |
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330 env::do_polite_directory_format (const std::string& name) const |
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331 { |
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332 std::string retval; |
2926 | 333 |
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334 std::string home_dir = do_get_home_directory (); |
2926 | 335 |
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336 size_t len = home_dir.length (); |
2926 | 337 |
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338 if (len > 1 && home_dir == name.substr (0, len) |
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339 && (name.length () == len || sys::file_ops::is_dir_sep (name[len]))) |
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340 { |
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341 retval = "~"; |
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342 retval.append (name.substr (len)); |
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343 } |
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344 else |
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345 retval = name; |
2926 | 346 |
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347 return retval; |
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348 } |
2926 | 349 |
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350 bool |
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351 env::do_absolute_pathname (const std::string& s) const |
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352 { |
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353 size_t len = s.length (); |
4087 | 354 |
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355 if (len == 0) |
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356 return false; |
2926 | 357 |
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358 if (sys::file_ops::is_dir_sep (s[0])) |
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359 return true; |
2926 | 360 |
4101 | 361 #if defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) |
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362 if ((len == 2 && isalpha (s[0]) && s[1] == ':') |
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363 || (len > 2 && isalpha (s[0]) && s[1] == ':' |
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364 && sys::file_ops::is_dir_sep (s[2]))) |
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365 return true; |
4087 | 366 #endif |
367 | |
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368 return false; |
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369 } |
2926 | 370 |
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371 bool |
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372 env::do_rooted_relative_pathname (const std::string& s) const |
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373 { |
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374 size_t len = s.length (); |
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375 |
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376 if (len == 0) |
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377 return false; |
6838 | 378 |
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379 if (len == 1 && s[0] == '.') |
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380 return true; |
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381 |
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382 if (len > 1 && s[0] == '.' && sys::file_ops::is_dir_sep (s[1])) |
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383 return true; |
6838 | 384 |
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385 if (len == 2 && s[0] == '.' && s[1] == '.') |
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386 return true; |
6838 | 387 |
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388 if (len > 2 && s[0] == '.' && s[1] == '.' |
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389 && sys::file_ops::is_dir_sep (s[2])) |
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390 return true; |
6838 | 391 |
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392 return false; |
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393 } |
6838 | 394 |
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395 // Return the 'basename' of the pathname in STRING (the stuff after |
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396 // the last directory separator). If STRING is not a full pathname, |
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397 // simply return it. |
6838 | 398 |
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399 std::string |
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400 env::do_base_pathname (const std::string& s) const |
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401 { |
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402 if (! (do_absolute_pathname (s) || do_rooted_relative_pathname (s))) |
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403 return s; |
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404 |
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405 size_t pos = s.find_last_of (sys::file_ops::dir_sep_chars ()); |
2926 | 406 |
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407 if (pos == std::string::npos) |
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408 return s; |
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409 else |
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410 return s.substr (pos+1); |
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411 } |
2926 | 412 |
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413 // Turn STRING (a pathname) into an absolute pathname, assuming that |
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414 // DOT_PATH contains the symbolic location of the current directory. |
2926 | 415 |
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416 std::string |
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417 env::do_make_absolute (const std::string& s, |
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418 const std::string& dot_path) const |
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419 { |
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420 if (dot_path.empty () || s.empty () || do_absolute_pathname (s)) |
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421 return s; |
2926 | 422 |
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423 // Optimization: every time Octave returns to the prompt it calls |
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424 // make_absolute_filename with '.' as argument. |
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425 if (s == ".") |
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426 return dot_path; |
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427 |
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428 std::string current_dir = dot_path; |
2926 | 429 |
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430 if (! sys::file_ops::is_dir_sep (current_dir.back ())) |
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431 current_dir.append (sys::file_ops::dir_sep_str ()); |
2926 | 432 |
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433 size_t i = 0; |
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434 size_t slen = s.length (); |
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436 while (i < slen) |
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437 { |
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438 if (s[i] == '.') |
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439 { |
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440 if (i + 1 == slen) |
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441 break; |
4097 | 442 |
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443 if (sys::file_ops::is_dir_sep (s[i+1])) |
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444 { |
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445 i += 2; |
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446 continue; |
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447 } |
2926 | 448 |
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449 if (s[i+1] == '.' |
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450 && (i + 2 == slen |
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451 || sys::file_ops::is_dir_sep (s[i+2]))) |
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452 { |
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453 i += 2; |
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454 if (i != slen) |
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455 i++; |
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456 |
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457 pathname_backup (current_dir, 1); |
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458 |
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459 continue; |
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460 } |
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461 } |
2926 | 462 |
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463 size_t sep_pos; |
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464 sep_pos = s.find_first_of (sys::file_ops::dir_sep_chars (), i); |
2926 | 465 |
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466 if (sep_pos == std::string::npos) |
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467 { |
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468 current_dir.append (s, i, sep_pos-i); |
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469 break; |
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470 } |
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471 else if (sep_pos == i) |
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472 { |
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473 /* Two separators in a row, skip adding 2nd separator */ |
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474 i++; |
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475 } |
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476 else |
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477 { |
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478 current_dir.append (s, i, sep_pos-i+1); |
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479 i = sep_pos + 1; |
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480 } |
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481 } |
2926 | 482 |
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483 // Strip any trailing directory separator |
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484 if (sys::file_ops::is_dir_sep (current_dir.back ())) |
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485 current_dir.pop_back (); |
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486 |
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487 return current_dir; |
2926 | 488 } |
489 | |
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490 // Return a string which is the current working directory. |
2926 | 491 |
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492 std::string |
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493 env::do_getcwd () const |
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494 { |
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495 if (! follow_symbolic_links) |
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496 current_directory = ""; |
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497 |
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498 if (verbatim_pwd || current_directory.empty ()) |
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499 current_directory = sys::getcwd (); |
2926 | 500 |
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501 return current_directory; |
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502 } |
2926 | 503 |
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504 // This value is not cached because it can change while Octave is |
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505 // running. |
2926 | 506 |
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507 std::string |
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508 env::do_get_home_directory (void) const |
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509 { |
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510 std::string hd = do_getenv ("HOME"); |
2926 | 511 |
6096 | 512 #if defined (__MINGW32__) || defined (_MSC_VER) |
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513 // Maybe we are started directly from cmd.exe. |
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514 if (hd.empty ()) |
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515 { |
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516 std::string drv = do_getenv ("HOMEDRIVE"); |
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517 if (drv.empty ()) |
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518 hd = do_getenv ("HOMEPATH"); |
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519 else |
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520 hd = drv + do_getenv ("HOMEPATH"); |
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521 } |
5451 | 522 #endif |
523 | |
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524 if (hd.empty ()) |
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525 { |
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|
526 sys::password pw = sys::password::getpwuid (sys::getuid ()); |
2947 | 527 |
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|
528 hd = (pw ? pw.dir () : std::string (sys::file_ops::dir_sep_str ())); |
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529 } |
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|
530 |
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|
531 return hd; |
2947 | 532 } |
533 | |
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|
534 std::string |
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|
535 env::do_get_user_name (void) const |
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|
536 { |
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|
537 if (user_name.empty ()) |
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|
538 { |
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John W. Eaton <jwe@octave.org>
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|
539 sys::password pw = sys::password::getpwuid (sys::getuid ()); |
2926 | 540 |
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Eliminate unnecessary std::string ("...") constructor calls when "..." suffices.
Rik <rik@octave.org>
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diff
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|
541 user_name = (pw ? pw.name () : "unknown"); |
21732
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542 } |
2926 | 543 |
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544 return user_name; |
2926 | 545 } |
546 | |
21732
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|
547 std::string |
6a1eded90355
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|
548 env::do_get_host_name (void) const |
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|
549 { |
6a1eded90355
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|
550 if (host_name.empty ()) |
6a1eded90355
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|
551 { |
6a1eded90355
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|
552 char hostname[1024]; |
2926 | 553 |
21910
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parents:
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diff
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|
554 int status = octave_gethostname_wrapper (hostname, 1023); |
2926 | 555 |
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|
556 host_name = (status < 0) ? "unknown" : hostname; |
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557 } |
2926 | 558 |
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|
559 return host_name; |
2926 | 560 } |
561 | |
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|
562 std::string |
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|
563 env::do_getenv (const std::string& name) const |
6a1eded90355
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|
564 { |
25916
3f2282954600
Support non-ASCII characters in environment variables on Windows (bug #53922).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25054
diff
changeset
|
565 return getenv_wrapper (name); |
21732
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diff
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|
566 } |
2926 | 567 |
23829
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Eliminate unnecessary std::string ("...") constructor calls when "..." suffices.
Rik <rik@octave.org>
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diff
changeset
|
568 // Do the work of changing to the directory NEWDIR. |
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Eliminate unnecessary std::string ("...") constructor calls when "..." suffices.
Rik <rik@octave.org>
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23812
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changeset
|
569 // Handle symbolic link following, etc. |
21732
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|
570 |
6a1eded90355
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parents:
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|
571 bool |
6a1eded90355
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|
572 env::do_chdir (const std::string& newdir) |
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|
573 { |
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|
574 bool retval = false; |
2926 | 575 |
21732
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|
576 std::string tmp; |
6a1eded90355
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|
577 |
6a1eded90355
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|
578 if (follow_symbolic_links) |
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parents:
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|
579 { |
6a1eded90355
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|
580 if (current_directory.empty ()) |
6a1eded90355
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parents:
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|
581 do_getcwd (); |
2926 | 582 |
21732
6a1eded90355
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|
583 if (current_directory.empty ()) |
6a1eded90355
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|
584 tmp = newdir; |
6a1eded90355
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|
585 else |
6a1eded90355
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|
586 tmp = do_make_absolute (newdir, current_directory); |
2926 | 587 |
21732
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diff
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|
588 // Get rid of trailing directory separator. |
23812
057a894914df
Use C++11 string fcns back() and pop_back() to simplify code.
Rik <rik@octave.org>
parents:
23809
diff
changeset
|
589 if (tmp.length () > 1 && sys::file_ops::is_dir_sep (tmp.back ())) |
057a894914df
Use C++11 string fcns back() and pop_back() to simplify code.
Rik <rik@octave.org>
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diff
changeset
|
590 tmp.pop_back (); |
2926 | 591 |
23696
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diff
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|
592 if (! sys::chdir (tmp)) |
21732
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|
593 { |
6a1eded90355
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|
594 current_directory = tmp; |
6a1eded90355
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parents:
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diff
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|
595 retval = true; |
6a1eded90355
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John W. Eaton <jwe@octave.org>
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596 } |
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597 } |
2926 | 598 else |
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599 retval = (! sys::chdir (newdir)); |
2926 | 600 |
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601 return retval; |
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602 } |
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603 |
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604 // Remove the last N directories from PATH. |
2926 | 605 |
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606 void |
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607 env::pathname_backup (std::string& path, int n) const |
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608 { |
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609 if (path.empty ()) |
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610 return; |
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611 |
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612 size_t i = path.length () - 1; |
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614 while (n--) |
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615 { |
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616 while (sys::file_ops::is_dir_sep (path[i]) && i > 0) |
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617 i--; |
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618 |
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619 #if defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) |
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620 // Don't strip file letter part. |
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621 if (i == 1 && path[i] == ':') |
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622 { |
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623 // Keep path separator if present. |
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624 i = std::min (i+2, path.length ()); |
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625 break; |
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626 } |
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627 #endif |
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628 |
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629 while (! sys::file_ops::is_dir_sep (path[i]) && i > 0) |
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630 i--; |
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631 |
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632 i++; |
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633 } |
2926 | 634 |
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635 path.resize (i); |
2926 | 636 } |
637 | |
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638 void |
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639 env::error (int err_num) const |
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640 { |
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641 (*current_liboctave_error_handler) ("%s", std::strerror (err_num)); |
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642 } |
2926 | 643 |
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644 void |
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645 env::error (const std::string& s) const |
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646 { |
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647 (*current_liboctave_error_handler) ("%s", s.c_str ()); |
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648 } |
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649 } |
2926 | 650 } |