Mercurial > octave
annotate scripts/miscellaneous/unpack.m @ 25893:96c69234ac98
unpack.m: Fix failing BIST test on Windows (bug #54719).
* unpack.m: Change FILETYPE validation BIST test to have a Unix and Windows
version.
author | Rik <rik@octave.org> |
---|---|
date | Mon, 24 Sep 2018 08:33:02 -0700 |
parents | 75ed70a1c108 |
children | 700b3f415ebe |
rev | line source |
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1 ## Copyright (C) 2006-2018 Bill Denney |
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2 ## |
6082 | 3 ## This file is part of Octave. |
4 ## | |
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5 ## Octave is free software: you can redistribute it and/or modify it |
6082 | 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 |
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8 ## (at your option) any later version. |
6082 | 9 ## |
10 ## Octave is distributed in the hope that it will be useful, but | |
11 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 ## GNU General Public License for more details. |
6082 | 14 ## |
15 ## You should have received a copy of the GNU General Public License | |
7016 | 16 ## along with Octave; see the file COPYING. If not, see |
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17 ## <https://www.gnu.org/licenses/>. |
6082 | 18 |
19 ## -*- texinfo -*- | |
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20 ## @deftypefn {} {@var{files} =} unpack (@var{file}) |
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21 ## @deftypefnx {} {@var{files} =} unpack (@var{file}, @var{dir}) |
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22 ## @deftypefnx {} {@var{files} =} unpack (@var{file}, @var{dir}, @var{filetype}) |
6082 | 23 ## Unpack the archive @var{file} based on its extension to the directory |
19234 | 24 ## @var{dir}. |
25 ## | |
26 ## If @var{file} is a list of strings, then each file is unpacked | |
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27 ## individually. Shell wildcards in the filename such as @samp{*} or |
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28 ## @samp{?} are accepted and expanded. |
19234 | 29 ## |
30 ## If @var{dir} is not specified or is empty (@code{[]}), it defaults to the | |
31 ## current directory. If a directory is in the file list, then @var{filetype} | |
32 ## must also be specified. | |
33 ## | |
34 ## The specific archive filetype is inferred from the extension of the file. | |
35 ## The @var{filetype} may also be specified directly using a string which | |
36 ## corresponds to a known extension. | |
37 ## | |
38 ## Valid filetype extensions: | |
39 ## | |
40 ## @table @code | |
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41 ## @item @nospell{bz} |
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42 ## @itemx @nospell{bz2} |
19234 | 43 ## bzip archive |
44 ## | |
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45 ## @item @nospell{gz} |
19234 | 46 ## gzip archive |
47 ## | |
48 ## @item tar | |
49 ## tar archive | |
50 ## | |
51 ## @item tarbz | |
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52 ## @itemx tarbz2 |
19234 | 53 ## @itemx tbz |
54 ## @itemx tbz2 | |
55 ## tar + bzip archive | |
56 ## | |
57 ## @item targz | |
58 ## @itemx tgz | |
59 ## tar + gzip archive | |
60 ## | |
61 ## @item z | |
62 ## compress archive | |
63 ## | |
64 ## @item zip | |
65 ## zip archive | |
66 ## @end table | |
6082 | 67 ## |
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68 ## The optional return value is a list of @var{files} unpacked. |
19243 | 69 ## @seealso{bunzip2, gunzip, unzip, untar, bzip2, gzip, zip, tar} |
6082 | 70 ## @end deftypefn |
71 | |
72 ## Author: Bill Denney <denney@seas.upenn.edu> | |
73 | |
19234 | 74 function filelist = unpack (file, dir = ".", filetype = "") |
6082 | 75 |
76 if (nargin < 1 || nargin > 3) | |
77 print_usage (); | |
78 endif | |
79 | |
19234 | 80 if (! ischar (file) && ! iscellstr (file)) |
81 error ("unpack: FILE must be a string or cell array of strings"); | |
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82 endif |
6082 | 83 |
19234 | 84 ## Convert char arrays to cell strings to simplify further processing |
85 if (ischar (file)) | |
86 file = cellstr (file); | |
87 endif | |
88 if (numel (file) == 1) | |
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89 ## FIXME: The code below is not a perfect test for a URL |
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90 if (isempty (strfind (file{1}, "://"))) |
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91 gfile = glob (file); |
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92 if (isempty (gfile)) |
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93 error ('unpack: FILE "%s" not found', file{1}); |
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94 else |
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95 file = gfile; |
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96 endif |
19234 | 97 endif |
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98 endif |
6082 | 99 |
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100 ## Recursively unpack cellstr arrays one file at a time |
19234 | 101 if (numel (file) > 1) |
6082 | 102 files = {}; |
103 for i = 1:numel (file) | |
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104 tmpfiles = unpack (file{i}, dir); |
6082 | 105 files = {files{:} tmpfiles{:}}; |
106 endfor | |
107 | |
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108 ## Return output if requested. |
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109 if (nargout > 0) |
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110 filelist = files; |
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111 endif |
19234 | 112 return; |
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113 |
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114 else |
19234 | 115 file = file{1}; |
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116 endif |
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117 |
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118 if (nargin == 3 && (! ischar (filetype) || ! isrow (filetype))) |
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119 error ("unpack: FILETYPE must be a string"); |
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120 endif |
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121 |
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122 if (isfolder (file)) |
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123 if (isempty (filetype)) |
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124 error ("unpack: FILETYPE must be given for a directory"); |
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125 elseif (! strcmpi (filetype, "gz")) |
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126 error ('unpack: FILETYPE must be "gz" for a directory'); |
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127 endif |
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128 ext = ".gz"; |
6082 | 129 else |
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130 [pathstr, name, ext] = fileparts (file); |
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131 |
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132 if (nargin == 3 && ! strcmpi (ext, filetype)) |
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133 ## override extension with given filetype |
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134 if (isempty (ext)) |
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135 ext = filetype; |
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136 else |
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137 ext = regexprep (ext, '(\.?)\S*$', ['$1' filetype]); |
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138 endif |
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139 endif |
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140 |
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141 ## Check to see if it's .tar.gz, .tar.Z, etc. |
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142 if (any (strcmpi ({".gz" ".Z" ".bz2" ".bz"}, ext))) |
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143 [~, tmpname, tmpext] = fileparts (name); |
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144 if (strcmpi (tmpext, ".tar")) |
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145 name = tmpname; |
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146 ext = [tmpext ext]; |
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147 endif |
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148 endif |
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149 |
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150 ## If the file is a URL, download it and then work with that file. |
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151 if (! isempty (strfind (file, "://"))) |
19234 | 152 ## FIXME: The above code is not a perfect test for a URL |
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153 urlfile = file; |
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154 tmpfile = fullfile (tempdir (), [name ext]); |
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155 [file, success, msg] = urlwrite (urlfile, tmpfile); |
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156 if (! success) |
19234 | 157 error ('unpack: could not fetch "%s": %s', urlfile, msg); |
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158 endif |
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159 endif |
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160 |
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161 endif |
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162 |
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163 file = make_absolute_filename (file); |
6082 | 164 |
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165 if (isempty (dir)) |
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166 dir = "."; |
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167 else |
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168 dir = tilde_expand (dir); |
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169 endif |
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170 |
6082 | 171 ## Instructions on what to do for any extension. |
172 ## | |
173 ## The field names are the file extension without periods. | |
174 ## The first cell is what is executed to unpack an archive verbosely. | |
175 ## The second cell is what is executed to unpack an archive quietly. | |
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176 ## The third cell is the function to execute on output to get the files list. |
6082 | 177 ## The fourth cell indicates if the files may need to be manually moved |
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178 ## (i.e., tar and unzip decompress into the current directory while |
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179 ## bzip2 and gzip decompress the file at its location). |
6082 | 180 persistent commandlist; |
181 if (isempty (commandlist)) | |
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182 commandlist.gz = {'gzip -d -v -f -r "%s"', ... |
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183 'gzip -d -f -r "%s"', ... |
10549 | 184 @__parse_gzip__, true}; |
6082 | 185 commandlist.z = commandlist.gz; |
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186 commandlist.bz2 = {'bzip2 -d -v -f "%s"', ... |
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187 'bzip2 -d -f "%s"', ... |
10549 | 188 @__parse_bzip2__, true}; |
6082 | 189 commandlist.bz = commandlist.bz2; |
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190 commandlist.tar = {'tar xvf "%s"', ... |
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191 'tar xf "%s"', ... |
10549 | 192 @__parse_tar__, false}; |
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193 commandlist.targz = {'gzip -d -c "%s" | tar xvf -', ... |
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194 'gzip -d -c "%s" | tar xf -', ... |
10549 | 195 @__parse_tar__, false}; |
6082 | 196 commandlist.tgz = commandlist.targz; |
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197 commandlist.tarbz2 = {'bzip2 -d -c "%s" | tar xvf -', ... |
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198 'bzip2 -d -c "%s" | tar xf -', ... |
10549 | 199 @__parse_tar__, false}; |
6082 | 200 commandlist.tarbz = commandlist.tarbz2; |
201 commandlist.tbz2 = commandlist.tarbz2; | |
202 commandlist.tbz = commandlist.tarbz2; | |
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203 commandlist.zip = {'unzip -n "%s"', ... |
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204 'unzip -nq "%s"', ... |
10549 | 205 @__parse_zip__, false}; |
6082 | 206 endif |
207 | |
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208 ## Unzip doesn't actually care about the extension |
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209 if (strcmpi (filetype, "zip")) |
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210 nodotext = "zip"; |
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211 else |
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212 nodotext = ext(ext != '.'); |
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213 endif |
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214 |
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215 if (ispc && strcmp (nodotext, "tar")) |
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216 ## Change file pathname into a mingw style acceptable for tar |
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217 file = __w2mpth__ (file); |
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218 endif |
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219 |
19234 | 220 if (isfield (commandlist, tolower (nodotext))) |
221 [commandv, commandq, parsefcn, move] = deal (commandlist.(nodotext){:}); | |
222 origdir = pwd (); | |
223 if (move) | |
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224 startdir = fileparts (file); |
19234 | 225 else |
226 startdir = origdir; | |
227 endif | |
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228 cstartdir = make_absolute_filename (startdir); |
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229 cenddir = make_absolute_filename (dir); |
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230 if (cenddir(end) == filesep) |
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231 cenddir(end) = []; |
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232 endif |
6082 | 233 needmove = move && ! strcmp (cstartdir, cenddir); |
234 if (nargout > 0 || needmove) | |
235 command = commandv; | |
236 else | |
237 command = commandq; | |
238 endif | |
239 else | |
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240 warning ("unpack: unrecognized FILETYPE <%s>", nodotext); |
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241 filelist = {}; |
6082 | 242 return; |
243 endif | |
244 | |
245 ## Create the directory if necessary. | |
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246 s = stat (dir); |
6082 | 247 if (isempty (s)) |
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248 [status, msg] = mkdir (dir); |
6082 | 249 if (! status) |
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250 error ("unpack: mkdir failed to create %s: %s", dir, msg); |
6082 | 251 endif |
252 elseif (! S_ISDIR (s.mode)) | |
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253 error ("unpack: %s: not a directory", dir); |
6082 | 254 endif |
255 | |
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256 ## Save and restore the TAR_OPTIONS environment variable used by GNU tar. |
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257 tar_options_env = getenv ("TAR_OPTIONS"); |
6082 | 258 unwind_protect |
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259 unsetenv ("TAR_OPTIONS"); |
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260 cd (dir); |
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261 [status, output] = system (sprintf ([command " 2>&1"], file)); |
6082 | 262 unwind_protect_cleanup |
263 cd (origdir); | |
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264 if (! isempty (tar_options_env)) |
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265 setenv ("TAR_OPTIONS", tar_options_env); |
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266 endif |
6082 | 267 end_unwind_protect |
268 | |
269 if (status) | |
270 error ("unpack: unarchiving program exited with status: %d\n%s", | |
10549 | 271 status, output); |
6082 | 272 endif |
273 | |
6084 | 274 if (nargout > 0 || needmove) |
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275 ## Trim the last CR or NL if needed. |
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276 files = parsefcn (ostrsplit (output, "\r\n", true))'; |
6082 | 277 |
19234 | 278 ## Move files if necessary. |
6082 | 279 if (needmove) |
19234 | 280 [st, msg] = movefile (files, cenddir); |
6082 | 281 if (! st) |
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282 error ('unpack: unable to move files to "%s": %s', dir, msg); |
6082 | 283 endif |
284 | |
19234 | 285 ## Fix the names of the files since they were moved. |
286 files = strrep (files, cstartdir, cenddir); | |
6082 | 287 endif |
288 | |
289 ## Return output if requested. | |
290 if (nargout > 0) | |
291 filelist = files; | |
292 endif | |
293 endif | |
294 | |
295 endfunction | |
296 | |
297 function files = __parse_zip__ (output) | |
298 ## Parse the output from zip and unzip. | |
299 | |
19234 | 300 ## Skip first line which is Archive header. |
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301 files = char (output(2:end)); |
19234 | 302 ## Trim constant width prefix and return cell array. |
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303 files = cellstr (files(:,14:end)); |
6082 | 304 endfunction |
305 | |
306 function output = __parse_tar__ (output) | |
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307 ## This is a no-op, but it makes things simpler for other cases. |
6082 | 308 endfunction |
309 | |
310 function files = __parse_gzip__ (output) | |
311 ## Parse the output from gzip and gunzip returning the files | |
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312 ## compressed (or decompressed). |
6082 | 313 |
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314 files = regexprep (output, '^.+ -- replaced with (.*)$', '$1'); |
6082 | 315 endfunction |
316 | |
317 function files = __parse_bzip2__ (output) | |
318 ## Parse the output from bzip2 and bunzip2 returning the files | |
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319 ## compressed (or decompressed). |
6082 | 320 |
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321 ## Strip leading blanks and .bz2 extension from filename |
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322 files = regexprep (output, '^\s+(.*)\.bz2: .*', '$1'); |
19234 | 323 endfunction |
324 | |
325 | |
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326 %!testif HAVE_ZLIB |
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327 %! envvar = {"TMPDIR", "TMP"}; |
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328 %! envdir = cellfun (@(x) getenv (x), envvar, "uniformoutput", false); |
19234 | 329 %! unwind_protect |
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330 %! cellfun (@(x) unsetenv (x), envvar); |
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331 %! ## Create temporary directory and file for packing and unpacking |
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332 %! dirname = tempname (); |
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333 %! assert (mkdir (dirname)); |
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334 %! filename = tempname (); |
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335 %! fid = fopen (filename, "wt"); |
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336 %! assert (fid >= 0); |
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337 %! fprintf (fid, "Hello World\n"); |
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338 %! fprintf (fid, "123 456 789\n"); |
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339 %! fclose (fid); |
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340 %! |
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341 %! unwind_protect |
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342 %! copyfile (filename, [filename ".orig"]); |
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343 %! gzip (filename, dirname); |
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344 %! [~, f] = fileparts (filename); |
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345 %! filelist = unpack (fullfile (dirname, [f ".gz"]), tempdir); |
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346 %! assert (filelist{1}, filename); |
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347 %! fid = fopen ([filename ".orig"], "rb"); |
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348 %! assert (fid >= 0); |
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349 %! orig_data = fread (fid); |
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350 %! fclose (fid); |
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351 %! fid = fopen (filename, "rb"); |
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352 %! assert (fid >= 0); |
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353 %! new_data = fread (fid); |
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354 %! fclose (fid); |
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355 %! if (orig_data != new_data) |
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356 %! error ("unpack: Unpacked file does not equal original"); |
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357 %! endif |
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358 %! unwind_protect_cleanup |
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359 %! unlink (filename); |
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360 %! unlink ([filename ".orig"]); |
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361 %! confirm_recursive_rmdir (false, "local"); |
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362 %! rmdir (dirname, "s"); |
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363 %! end_unwind_protect |
19234 | 364 %! unwind_protect_cleanup |
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365 %! ## Restore environment variables TMPDIR, TMP |
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366 %! for i = 1:numel (envvar) |
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367 %! if (isempty (envdir{i})) |
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368 %! unsetenv (envvar{i}); |
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369 %! else |
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370 %! setenv (envvar{i}, envdir{i}); |
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371 %! endif |
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372 %! endfor |
19234 | 373 %! end_unwind_protect |
374 | |
375 ## Test input validation | |
376 %!error unpack () | |
377 %!error unpack (1,2,3,4) | |
378 %!error <FILE must be a string or cell array of strings> unpack (1) | |
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379 %!error <FILE "_%NOT_A_FILENAME%_" not found> unpack ("_%NOT_A_FILENAME%_") |
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380 %!error <FILE "_%NOT_A_FILENAME%_" not found> unpack ({"_%NOT_A_FILENAME%_"}) |
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381 %!error <FILE "_%NOT_A_FILENAME%_" not found> unpack ({"_%NOT_A_FILENAME%_", "2nd_filename"}) |
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382 %!error <FILETYPE must be a string> |
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383 %! if (isunix || ismac) |
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384 %! unpack ("/", [], 1) |
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385 %! else |
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386 %! unpack ('C:\', [], 1) |
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387 %! endif |
19234 | 388 %!error <FILETYPE must be given for a directory> |
389 %! if (isunix || ismac) | |
390 %! unpack ("/"); | |
391 %! else | |
392 %! unpack ('C:\'); | |
393 %! endif | |
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394 %!error <FILETYPE must be "gz" for a directory> |
19234 | 395 %! if (isunix || ismac) |
396 %! unpack ("/", [], "foobar"); | |
397 %! else | |
398 %! unpack ('C:\', [], "foobar"); | |
399 %! endif |