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annotate scripts/miscellaneous/copyfile.m @ 20654:b65888ec820e draft default tip gccjit

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dmalcom gcc jit import
author Stefan Mahr <dac922@gmx.de>
date Fri, 27 Feb 2015 16:59:36 +0100
parents 4197fc428c7d
children
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rev   line source
19731
4197fc428c7d maint: Update copyright notices for 2015.
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1 ## Copyright (C) 2005-2015 John W. Eaton
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 3 of the License, or (at
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8 ## your option) any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, see
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17 ## <http://www.gnu.org/licenses/>.
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18
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19 ## -*- texinfo -*-
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20 ## @deftypefn {Function File} {[@var{status}, @var{msg}, @var{msgid}] =} copyfile (@var{f1}, @var{f2})
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21 ## @deftypefnx {Function File} {[@var{status}, @var{msg}, @var{msgid}] =} copyfile (@var{f1}, @var{f2}, 'f')
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22 ## Copy the source files or directories @var{f1} to the destination @var{f2}.
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23 ##
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24 ## The name @var{f1} may contain globbing patterns. If @var{f1} expands to
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25 ## multiple file names, @var{f2} must be a directory.
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26 ##
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27 ## When the force flag @qcode{'f'} is given any existing files will be
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28 ## overwritten without prompting.
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29 ##
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30 ## If successful, @var{status} is 1, and @var{msg}, @var{msgid} are empty
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31 ## character strings (""). Otherwise, @var{status} is 0, @var{msg} contains a
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32 ## system-dependent error message, and @var{msgid} contains a unique message
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33 ## identifier. Note that the status code is exactly opposite that of the
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34 ## @code{system} command.
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35 ## @seealso{movefile, rename, unlink, delete, glob}
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36 ## @end deftypefn
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37
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38 function [status, msg, msgid] = copyfile (f1, f2, force)
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39
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40 if (nargin < 2 || nargin > 3)
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41 print_usage ();
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42 endif
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43
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44 max_cmd_line = 1024;
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45 status = true;
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46 msg = "";
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47 msgid = "";
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48
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49 ## FIXME: Maybe use the same method as in ls to allow users control
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50 ## over the command that is executed.
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51
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52 if (ispc () && ! isunix ()
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53 && isempty (file_in_path (getenv ("PATH"), "cp.exe")))
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54 ## Windows.
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55 cmd = "cmd /C xcopy /E";
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56 cmd_force_flag = "/Y";
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57 else
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58 cmd = "cp -r";
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59 cmd_force_flag = "-f";
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60 endif
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61
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62 ## Input type check.
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63 if (ischar (f1))
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64 f1 = cellstr (f1);
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65 elseif (! iscellstr (f1))
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66 error ("copyfile: F1 must be a string or a cell array of strings");
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67 endif
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68 if (! ischar (f2))
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69 error ("copyfile: F2 must be a string");
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70 endif
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71
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72 if (nargin == 3 && strcmp (force, "f"))
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73 cmd = [cmd " " cmd_force_flag];
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74 endif
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75
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76 ## If f1 has more than 1 element then f2 must be a directory
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77 isdir = (exist (f2, "dir") != 0);
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78 if (numel (f1) > 1 && ! isdir)
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79 error ("copyfile: when copying multiple files, F2 must be a directory");
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80 endif
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81
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82 ## Protect the file name(s).
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83 f1 = glob (f1);
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84 if (isempty (f1))
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85 error ("copyfile: no files to move");
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86 endif
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87 p1 = sprintf ('"%s" ', f1{:});
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88 p2 = tilde_expand (f2);
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89
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90 if (isdir && length (p1) > max_cmd_line)
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91 l2 = length (p2) + length (cmd) + 6;
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92 while (! isempty (f1))
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93 p1 = sprintf ('"%s" ', f1{1});
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94 f1(1) = [];
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95 while (! isempty (f1)
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96 && (length (p1) + length (f1{1}) + l2 < max_cmd_line))
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97 p1 = sprintf ('%s"%s" ', p1, f1{1});
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98 f1(1) = [];
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99 endwhile
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100
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101 if (ispc () && ! isunix ()
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102 && ! isempty (file_in_path (getenv ("PATH"), "cp.exe")))
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103 p1 = strrep (p1, '\', '/');
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104 p2 = strrep (p2, '\', '/');
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105 endif
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106
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107 ## Copy the files.
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108 [err, msg] = system (sprintf ('%s %s"%s"', cmd, p1, p2));
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109 if (err != 0)
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110 status = false;
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111 msgid = "copyfile";
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112 break;
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113 endif
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114 endwhile
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115 else
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116 if (ispc () && ! isunix ()
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117 && ! isempty (file_in_path (getenv ("PATH"), "cp.exe")))
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118 p1 = strrep (p1, '\', '/');
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119 p2 = strrep (p2, '\', '/');
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120 endif
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121
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122 ## Copy the files.
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123 [err, msg] = system (sprintf ('%s %s"%s"', cmd, p1, p2));
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124 if (err != 0)
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125 status = false;
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126 msgid = "copyfile";
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127 endif
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128 endif
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129
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130 endfunction
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131
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132
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133 %!test
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134 %! unwind_protect
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135 %! f1 = tempname;
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136 %! tmp_var = pi;
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137 %! save (f1, "tmp_var");
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138 %! f2 = tempname;
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139 %! assert (copyfile (f1, f2));
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140 %! assert (exist (f2, "file"));
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141 %! fid = fopen (f1, "rb");
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142 %! assert (fid >= 0);
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143 %! orig_data = fread (fid);
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144 %! fclose (fid);
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145 %! fid = fopen (f2, "rb");
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146 %! assert (fid >= 0);
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147 %! new_data = fread (fid);
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148 %! fclose (fid);
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149 %! if (orig_data != new_data)
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150 %! error ("copied file not equal to original file!");
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151 %! endif
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152 %! unwind_protect_cleanup
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153 %! delete (f1);
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154 %! delete (f2);
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155 %! end_unwind_protect
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156
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157 ## Test input validation
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158 %!error copyfile ()
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159 %!error copyfile (1)
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160 %!error copyfile (1,2,3,4)
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161 %!error <F1 must be a string> copyfile (1, "foobar")
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162 %!error <F2 must be a string> copyfile ("foobar", 1)
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163 %!error <F2 must be a directory> copyfile ({"a", "b"}, "%_NOT_A_DIR_%")
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164