annotate liboctave/system/oct-env.h @ 27832:8fd7d1d2a4ca

Read startup files from XDG_CONFIG_HOME or LOCALAPPDATA (bug #36477). * oct-env.[cc,h] (get_user_config_directory, do_get_user_config_directory): New functions. * interpreter.cc (execute_startup_files): Try to execute the octaverc file at a platform dependent location. * doc/interpreter/basics.txi: Document new location for startup file. * NEWS: Announce change.
author Mike Miller <mtmiller@octave.org>
date Wed, 06 Mar 2019 14:54:38 -0800
parents 00f796120a6d
children b442ec6dda5c
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1 /*
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2
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3 Copyright (C) 1996-2019 John W. Eaton
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4
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5 This file is part of Octave.
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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.
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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.
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <https://www.gnu.org/licenses/>.
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21 */
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22
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23 #if ! defined (octave_oct_env_h)
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24 #define octave_oct_env_h 1
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26 #include "octave-config.h"
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28 #include <string>
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30 namespace octave
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31 {
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32 namespace sys
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33 {
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34 class
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35 OCTAVE_API
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36 env
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37 {
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38 protected:
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40 env (void);
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42 public:
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44 // No copying!
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46 env (const env&) = delete;
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48 env& operator = (const env&) = delete;
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50 static std::string polite_directory_format (const std::string& name);
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52 static bool absolute_pathname (const std::string& s);
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54 static bool rooted_relative_pathname (const std::string& s);
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56 static std::string base_pathname (const std::string& s);
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58 static std::string
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59 make_absolute (const std::string& s,
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60 const std::string& dot_path = get_current_directory ());
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62 static std::string get_current_directory (void);
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64 static std::string get_home_directory (void);
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66 static std::string get_temp_directory (void);
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68 static std::string get_user_config_directory (void);
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70 static std::string get_program_name (void);
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72 static std::string get_program_invocation_name (void);
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74 static std::string get_user_name (void);
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76 static std::string get_host_name (void);
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78 static std::string getenv (const std::string& name);
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80 static void putenv (const std::string& name, const std::string& value);
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82 static bool have_x11_display (void);
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84 static bool chdir (const std::string& newdir);
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86 static void set_program_name (const std::string& s);
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88 private:
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90 static bool instance_ok (void);
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92 std::string do_polite_directory_format (const std::string& name) const;
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94 bool do_absolute_pathname (const std::string& s) const;
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96 bool do_rooted_relative_pathname (const std::string& s) const;
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98 std::string do_base_pathname (const std::string& s) const;
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100 std::string do_make_absolute (const std::string& s,
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101 const std::string& dot_path) const;
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103 std::string do_getcwd (void) const;
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105 std::string do_get_home_directory (void) const;
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107 std::string do_get_temp_directory (void) const;
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109 std::string do_get_user_config_directory (void) const;
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111 std::string do_get_user_name (void) const;
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113 std::string do_get_host_name (void) const;
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115 std::string do_getenv (const std::string& name) const;
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117 void do_putenv (const std::string& name, const std::string& value) const;
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119 bool do_chdir (const std::string& newdir);
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121 void do_set_program_name (const std::string& s) const;
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123 void pathname_backup (std::string& path, int n) const;
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125 void error (int) const;
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127 void error (const std::string&) const;
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129 // The real thing.
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130 static env *instance;
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131
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132 static void cleanup_instance (void) { delete instance; instance = nullptr; }
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133
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134 // TRUE means follow symbolic links that point to directories just
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135 // as if they are real directories.
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136 bool follow_symbolic_links;
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138 // TRUE means that pwd always give verbatim directory, regardless
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139 // of symbolic link following.
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140 bool verbatim_pwd;
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142 // Where are we?
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143 mutable std::string current_directory;
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145 // Etc.
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146 mutable std::string prog_name;
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148 mutable std::string prog_invocation_name;
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149
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150 mutable std::string user_name;
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151
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152 mutable std::string host_name;
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153 };
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154 }
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155 }
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156
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157 #endif