Mercurial > octave
annotate scripts/miscellaneous/unpack.m @ 22511:1e81abd0314a
tempname: respect the value of $TMPDIR if set, be consistent with tempdir
* file-io.cc (Ftempname): Default to creating files in $TMPDIR when called
without a directory argument.
* unpack.m: Update BIST test to unpack files in tempdir, which may differ from
P_tmpdir.
| author | Mike Miller <mtmiller@octave.org> |
|---|---|
| date | Fri, 16 Sep 2016 15:36:26 -0700 |
| parents | 119f408f2dd1 |
| children | 3a2b891d0b33 e9a0469dedd9 |
| rev | line source |
|---|---|
|
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1 ## Copyright (C) 2006-2016 Bill Denney |
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2 ## |
| 6082 | 3 ## This file is part of Octave. |
| 4 ## | |
| 5 ## Octave is free software; you can redistribute it and/or modify it | |
| 6 ## under the terms of the GNU General Public License as published by | |
| 7016 | 7 ## the Free Software Foundation; either version 3 of the License, or (at |
| 8 ## 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 | |
| 12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 ## General Public License for more details. | |
| 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 |
| 17 ## <http://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 | |
| 41 ## @item bz | |
| 42 ## @itemx bz2 | |
| 43 ## bzip archive | |
| 44 ## | |
| 45 ## @item gz | |
| 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 if (isempty (strfind (file{1}, "://"))) |
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90 ## FIXME: The above code is not a perfect test for a URL |
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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 (isdir (file)) |
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119 if (isempty (filetype)) |
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120 error ("unpack: FILETYPE must be given for a directory"); |
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121 elseif (! any (strcmpi (filetype, "gunzip"))) |
| 19234 | 122 error ('unpack: FILETYPE must be "gunzip" for a directory'); |
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123 endif |
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124 ext = ".gz"; |
| 6082 | 125 else |
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126 [pathstr, name, ext] = fileparts (file); |
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127 |
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128 ## Check to see if it's .tar.gz, .tar.Z, etc. |
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129 if (any (strcmpi ({".gz" ".Z" ".bz2" ".bz"}, ext))) |
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130 [~, tmpname, tmpext] = fileparts (name); |
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131 if (strcmpi (tmpext, ".tar")) |
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132 name = tmpname; |
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133 ext = [tmpext ext]; |
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134 endif |
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135 endif |
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136 |
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137 ## If the file is a URL, download it and then work with that file. |
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138 if (! isempty (strfind (file, "://"))) |
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140 urlfile = file; |
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141 tmpfile = fullfile (tempdir (), [name ext]); |
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142 [file, success, msg] = urlwrite (urlfile, tmpfile); |
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143 if (! success) |
| 19234 | 144 error ('unpack: could not fetch "%s": %s', urlfile, msg); |
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145 endif |
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146 endif |
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147 |
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148 endif |
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149 |
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150 file = make_absolute_filename (file); |
| 6082 | 151 |
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152 if (isempty (dir)) |
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153 dir = "."; |
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154 else |
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155 dir = tilde_expand (dir); |
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156 endif |
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157 |
| 6082 | 158 ## Instructions on what to do for any extension. |
| 159 ## | |
| 160 ## The field names are the file extension without periods. | |
| 161 ## The first cell is what is executed to unpack an archive verbosely. | |
| 162 ## The second cell is what is executed to unpack an archive quietly. | |
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163 ## The third cell is the function to execute on output to get the files list. |
| 6082 | 164 ## The fourth cell indicates if the files may need to be manually moved |
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165 ## (i.e., tar and unzip decompress into the current directory while |
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166 ## bzip2 and gzip decompress the file at its location). |
| 6082 | 167 persistent commandlist; |
| 168 if (isempty (commandlist)) | |
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169 commandlist.gz = {'gzip -d -v -f -r "%s"', ... |
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170 'gzip -d -f -r "%s"', ... |
| 10549 | 171 @__parse_gzip__, true}; |
| 6082 | 172 commandlist.z = commandlist.gz; |
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173 commandlist.bz2 = {'bzip2 -d -v -f "%s"', ... |
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174 'bzip2 -d -f "%s"', ... |
| 10549 | 175 @__parse_bzip2__, true}; |
| 6082 | 176 commandlist.bz = commandlist.bz2; |
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177 commandlist.tar = {'tar xvf "%s"', ... |
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178 'tar xf "%s"', ... |
| 10549 | 179 @__parse_tar__, false}; |
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180 commandlist.targz = {'gzip -d -c "%s" | tar xvf -', ... |
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181 'gzip -d -c "%s" | tar xf -', ... |
| 10549 | 182 @__parse_tar__, false}; |
| 6082 | 183 commandlist.tgz = commandlist.targz; |
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184 commandlist.tarbz2 = {'bzip2 -d -c "%s" | tar xvf -', ... |
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185 'bzip2 -d -c "%s" | tar xf -', ... |
| 10549 | 186 @__parse_tar__, false}; |
| 6082 | 187 commandlist.tarbz = commandlist.tarbz2; |
| 188 commandlist.tbz2 = commandlist.tarbz2; | |
| 189 commandlist.tbz = commandlist.tarbz2; | |
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190 commandlist.zip = {'unzip -n "%s"', ... |
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191 'unzip -nq "%s"', ... |
| 10549 | 192 @__parse_zip__, false}; |
| 6082 | 193 endif |
| 194 | |
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195 ## Unzip doesn't actually care about the extension |
| 19234 | 196 if (strcmpi (filetype, "unzip")) |
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197 nodotext = "zip"; |
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198 else |
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199 nodotext = ext(ext != '.'); |
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200 endif |
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201 |
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202 if (ispc && strcmp (nodotext, "tar")) |
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203 ## Change file pathname into a mingw style acceptable for tar |
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204 file = __w2mpth__ (file); |
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205 endif |
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206 |
| 19234 | 207 if (isfield (commandlist, tolower (nodotext))) |
| 208 [commandv, commandq, parsefcn, move] = deal (commandlist.(nodotext){:}); | |
| 209 origdir = pwd (); | |
| 210 if (move) | |
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211 startdir = fileparts (file); |
| 19234 | 212 else |
| 213 startdir = origdir; | |
| 214 endif | |
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215 cstartdir = make_absolute_filename (startdir); |
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216 cenddir = make_absolute_filename (dir); |
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217 if (cenddir(end) == filesep) |
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218 cenddir(end) = []; |
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219 endif |
| 6082 | 220 needmove = move && ! strcmp (cstartdir, cenddir); |
| 221 if (nargout > 0 || needmove) | |
| 222 command = commandv; | |
| 223 else | |
| 224 command = commandq; | |
| 225 endif | |
| 226 else | |
| 19234 | 227 warning ("unpack: unrecognized FILETYPE <%s>", ext); |
| 6082 | 228 files = file; |
| 229 return; | |
| 230 endif | |
| 231 | |
| 232 ## Create the directory if necessary. | |
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233 s = stat (dir); |
| 6082 | 234 if (isempty (s)) |
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235 [status, msg] = mkdir (dir); |
| 6082 | 236 if (! status) |
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237 error ("unpack: mkdir failed to create %s: %s", dir, msg); |
| 6082 | 238 endif |
| 239 elseif (! S_ISDIR (s.mode)) | |
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240 error ("unpack: %s: not a directory", dir); |
| 6082 | 241 endif |
| 242 | |
| 243 unwind_protect | |
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244 cd (dir); |
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245 [status, output] = system (sprintf ([command " 2>&1"], file)); |
| 6082 | 246 unwind_protect_cleanup |
| 247 cd (origdir); | |
| 248 end_unwind_protect | |
| 249 | |
| 250 if (status) | |
| 251 error ("unpack: unarchiving program exited with status: %d\n%s", | |
| 10549 | 252 status, output); |
| 6082 | 253 endif |
| 254 | |
| 6084 | 255 if (nargout > 0 || needmove) |
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256 ## Trim the last CR or NL if needed. |
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257 files = parsefcn (ostrsplit (output, "\r\n", true))'; |
| 6082 | 258 |
| 19234 | 259 ## Move files if necessary. |
| 6082 | 260 if (needmove) |
| 19234 | 261 [st, msg] = movefile (files, cenddir); |
| 6082 | 262 if (! st) |
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263 error ('unpack: unable to move files to "%s": %s', dir, msg); |
| 6082 | 264 endif |
| 265 | |
| 19234 | 266 ## Fix the names of the files since they were moved. |
| 267 files = strrep (files, cstartdir, cenddir); | |
| 6082 | 268 endif |
| 269 | |
| 270 ## Return output if requested. | |
| 271 if (nargout > 0) | |
| 272 filelist = files; | |
| 273 endif | |
| 274 endif | |
| 275 | |
| 276 endfunction | |
| 277 | |
| 278 function files = __parse_zip__ (output) | |
| 279 ## Parse the output from zip and unzip. | |
| 280 | |
| 19234 | 281 ## Skip first line which is Archive header. |
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282 files = char (output(2:end)); |
| 19234 | 283 ## Trim constant width prefix and return cell array. |
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284 files = cellstr (files(:,14:end)); |
| 6082 | 285 endfunction |
| 286 | |
| 287 function output = __parse_tar__ (output) | |
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288 ## This is a no-op, but it makes things simpler for other cases. |
| 6082 | 289 endfunction |
| 290 | |
| 291 function files = __parse_gzip__ (output) | |
| 292 ## Parse the output from gzip and gunzip returning the files | |
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293 ## compressed (or decompressed). |
| 6082 | 294 |
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295 files = regexprep (output, '^.+ -- replaced with (.*)$', '$1'); |
| 6082 | 296 endfunction |
| 297 | |
| 298 function files = __parse_bzip2__ (output) | |
| 299 ## Parse the output from bzip2 and bunzip2 returning the files | |
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300 ## compressed (or decompressed). |
| 6082 | 301 |
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302 ## Strip leading blanks and .bz2 extension from filename |
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303 files = regexprep (output, '^\s+(.*)\.bz2: .*', '$1'); |
| 19234 | 304 endfunction |
| 305 | |
| 306 | |
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307 %!testif HAVE_ZLIB |
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308 %! ## Create temporary directory and file for packing and unpacking |
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309 %! dirname = tempname (); |
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310 %! assert (mkdir (dirname)); |
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311 %! filename = tempname (); |
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312 %! fid = fopen (filename, "wt"); |
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313 %! assert (fid >= 0); |
| 19234 | 314 %! fprintf (fid, "Hello World\n"); |
| 315 %! fprintf (fid, "123 456 789\n"); | |
| 316 %! fclose (fid); | |
| 317 %! unwind_protect | |
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318 %! copyfile (filename, [filename ".orig"]); |
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319 %! gzip (filename, dirname); |
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320 %! [~, f] = fileparts (filename); |
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321 %! filelist = unpack (fullfile (dirname, [f ".gz"]), tempdir); |
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322 %! assert (filelist{1}, filename); |
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323 %! fid = fopen ([filename ".orig"], "rb"); |
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324 %! assert (fid >= 0); |
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325 %! orig_data = fread (fid); |
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326 %! fclose (fid); |
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327 %! fid = fopen (filename, "rb"); |
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328 %! assert (fid >= 0); |
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329 %! new_data = fread (fid); |
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330 %! fclose (fid); |
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331 %! if (orig_data != new_data) |
| 19234 | 332 %! error ("unpack: Unpacked file does not equal original"); |
| 333 %! endif | |
| 334 %! unwind_protect_cleanup | |
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335 %! unlink (filename); |
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336 %! unlink ([filename ".orig"]); |
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337 %! confirm_recursive_rmdir (false, "local"); |
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338 %! rmdir (dirname, "s"); |
| 19234 | 339 %! end_unwind_protect |
| 340 | |
| 341 ## Test input validation | |
| 342 %!error unpack () | |
| 343 %!error unpack (1,2,3,4) | |
| 344 %!error <FILE must be a string or cell array of strings> unpack (1) | |
| 345 %!error <file "_%NOT_A_FILENAME%_" not found> unpack ("_%NOT_A_FILENAME%_") | |
| 346 %!error <file "_%NOT_A_FILENAME%_" not found> unpack ({"_%NOT_A_FILENAME%_"}) | |
| 347 %!error <file "_%NOT_A_FILENAME%_" not found> unpack ({"_%NOT_A_FILENAME%_", "2nd_filename"}) | |
| 348 %!error <FILETYPE must be given for a directory> | |
| 349 %! if (isunix || ismac) | |
| 350 %! unpack ("/"); | |
| 351 %! else | |
| 352 %! unpack ('C:\'); | |
| 353 %! endif | |
| 354 %!error <FILETYPE must be "gunzip" for a directory> | |
| 355 %! if (isunix || ismac) | |
| 356 %! unpack ("/", [], "foobar"); | |
| 357 %! else | |
| 358 %! unpack ('C:\', [], "foobar"); | |
| 359 %! endif | |
| 360 |