Mercurial > octave
annotate scripts/miscellaneous/unpack.m @ 27923:bd51beb6205e
update formatting of copyright notices
* Use <https://octave.org/copyright/> instead of
<https://octave.org/COPYRIGHT.html/>.
* For consistency with other comments in the Octave sources, use
C++-style comments for copyright blocks in C and C++ files.
* Use delimiters above and below copyright blocks that are appropriate
for the language used in the file.
* Eliminate extra spacing inside copyright blocks.
* lex.ll (looks_like_copyright): Also allow newlines and carriage
returns before the word "Copyright".
* scripts/mk-doc.pl (gethelp): Also skip empty comment lines.
* bp-table.cc, type.m: Adjust tests.
author | John W. Eaton <jwe@octave.org> |
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date | Wed, 08 Jan 2020 11:59:41 -0500 |
parents | 1891570abac8 |
children | a4268efb7334 |
rev | line source |
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1 ######################################################################## |
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2 ## |
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3 ## Copyright (C) 2006-2020 The Octave Project Developers |
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4 ## |
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5 ## See the file COPYRIGHT.md in the top-level directory of this |
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6 ## distribution or <https://octave.org/copyright/>. |
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7 ## |
6082 | 8 ## This file is part of Octave. |
9 ## | |
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10 ## Octave is free software: you can redistribute it and/or modify it |
6082 | 11 ## under the terms of the GNU General Public License as published by |
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12 ## the Free Software Foundation, either version 3 of the License, or |
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13 ## (at your option) any later version. |
6082 | 14 ## |
15 ## Octave is distributed in the hope that it will be useful, but | |
16 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
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17 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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18 ## GNU General Public License for more details. |
6082 | 19 ## |
20 ## You should have received a copy of the GNU General Public License | |
7016 | 21 ## along with Octave; see the file COPYING. If not, see |
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22 ## <https://www.gnu.org/licenses/>. |
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23 ## |
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24 ######################################################################## |
6082 | 25 |
26 ## -*- texinfo -*- | |
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27 ## @deftypefn {} {@var{files} =} unpack (@var{file}) |
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28 ## @deftypefnx {} {@var{files} =} unpack (@var{file}, @var{dir}) |
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29 ## @deftypefnx {} {@var{files} =} unpack (@var{file}, @var{dir}, @var{filetype}) |
6082 | 30 ## Unpack the archive @var{file} based on its extension to the directory |
19234 | 31 ## @var{dir}. |
32 ## | |
33 ## If @var{file} is a list of strings, then each file is unpacked | |
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34 ## individually. Shell wildcards in the filename such as @samp{*} or |
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35 ## @samp{?} are accepted and expanded. |
19234 | 36 ## |
37 ## If @var{dir} is not specified or is empty (@code{[]}), it defaults to the | |
38 ## current directory. If a directory is in the file list, then @var{filetype} | |
39 ## must also be specified. | |
40 ## | |
41 ## The specific archive filetype is inferred from the extension of the file. | |
42 ## The @var{filetype} may also be specified directly using a string which | |
43 ## corresponds to a known extension. | |
44 ## | |
45 ## Valid filetype extensions: | |
46 ## | |
47 ## @table @code | |
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48 ## @item @nospell{bz} |
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49 ## @itemx @nospell{bz2} |
19234 | 50 ## bzip archive |
51 ## | |
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52 ## @item @nospell{gz} |
19234 | 53 ## gzip archive |
54 ## | |
55 ## @item tar | |
56 ## tar archive | |
57 ## | |
58 ## @item tarbz | |
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59 ## @itemx tarbz2 |
19234 | 60 ## @itemx tbz |
61 ## @itemx tbz2 | |
62 ## tar + bzip archive | |
63 ## | |
64 ## @item targz | |
65 ## @itemx tgz | |
66 ## tar + gzip archive | |
67 ## | |
68 ## @item z | |
69 ## compress archive | |
70 ## | |
71 ## @item zip | |
72 ## zip archive | |
73 ## @end table | |
6082 | 74 ## |
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75 ## The optional return value is a list of @var{files} unpacked. |
19243 | 76 ## @seealso{bunzip2, gunzip, unzip, untar, bzip2, gzip, zip, tar} |
6082 | 77 ## @end deftypefn |
78 | |
79 ## Author: Bill Denney <denney@seas.upenn.edu> | |
80 | |
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81 function filelist = unpack (file, dir = [], filetype = "") |
6082 | 82 |
83 if (nargin < 1 || nargin > 3) | |
84 print_usage (); | |
85 endif | |
86 | |
19234 | 87 if (! ischar (file) && ! iscellstr (file)) |
88 error ("unpack: FILE must be a string or cell array of strings"); | |
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89 endif |
6082 | 90 |
19234 | 91 ## Convert char arrays to cell strings to simplify further processing |
92 if (ischar (file)) | |
93 file = cellstr (file); | |
94 endif | |
95 if (numel (file) == 1) | |
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96 ## FIXME: The code below is not a perfect test for a URL |
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97 if (isempty (strfind (file{1}, "://"))) |
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98 gfile = glob (file); |
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99 if (isempty (gfile)) |
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100 error ('unpack: FILE "%s" not found', file{1}); |
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101 else |
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102 file = gfile; |
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103 endif |
19234 | 104 endif |
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105 endif |
6082 | 106 |
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107 ## Recursively unpack cellstr arrays one file at a time |
19234 | 108 if (numel (file) > 1) |
6082 | 109 files = {}; |
110 for i = 1:numel (file) | |
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111 if (! isempty (dir)) |
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112 tmpfiles = unpack (file{i}, dir); |
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113 else |
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114 tmpfiles = unpack (file{i}, fileparts (file{i})); |
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115 endif |
6082 | 116 files = {files{:} tmpfiles{:}}; |
117 endfor | |
118 | |
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119 ## Return output if requested. |
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120 if (nargout > 0) |
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121 filelist = files; |
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122 endif |
19234 | 123 return; |
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124 |
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125 else |
19234 | 126 file = file{1}; |
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127 endif |
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128 |
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129 if (nargin == 3 && (! ischar (filetype) || ! isrow (filetype))) |
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130 error ("unpack: FILETYPE must be a string"); |
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131 endif |
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132 |
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133 if (isfolder (file)) |
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134 if (isempty (filetype)) |
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135 error ("unpack: FILETYPE must be given for a directory"); |
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136 elseif (! strcmpi (filetype, "gz")) |
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137 error ('unpack: FILETYPE must be "gz" for a directory'); |
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138 endif |
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139 ext = ".gz"; |
6082 | 140 else |
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141 [pathstr, name, ext] = fileparts (file); |
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142 |
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143 if (nargin == 3 && ! strcmpi (ext, filetype)) |
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144 ## override extension with given filetype |
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145 if (isempty (ext)) |
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146 ext = filetype; |
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147 else |
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148 ext = regexprep (ext, '(\.?)\S*$', ['$1' filetype]); |
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149 endif |
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150 endif |
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151 |
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152 ## Check to see if it's .tar.gz, .tar.Z, etc. |
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153 if (any (strcmpi ({".gz" ".Z" ".bz2" ".bz"}, ext))) |
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154 [~, tmpname, tmpext] = fileparts (name); |
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155 if (strcmpi (tmpext, ".tar")) |
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156 name = tmpname; |
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157 ext = [tmpext ext]; |
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158 endif |
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159 endif |
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160 |
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161 ## If the file is a URL, download it and then work with that file. |
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162 if (! isempty (strfind (file, "://"))) |
19234 | 163 ## FIXME: The above code is not a perfect test for a URL |
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164 urlfile = file; |
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165 tmpfile = fullfile (tempdir (), [name ext]); |
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166 [file, success, msg] = urlwrite (urlfile, tmpfile); |
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167 if (! success) |
19234 | 168 error ('unpack: could not fetch "%s": %s', urlfile, msg); |
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169 endif |
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170 endif |
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171 |
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172 endif |
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173 |
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174 file = make_absolute_filename (file); |
6082 | 175 |
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176 if (isempty (dir)) |
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177 dir = "."; |
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178 else |
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179 dir = tilde_expand (dir); |
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180 endif |
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181 |
6082 | 182 ## Instructions on what to do for any extension. |
183 ## | |
184 ## The field names are the file extension without periods. | |
185 ## The first cell is what is executed to unpack an archive verbosely. | |
186 ## The second cell is what is executed to unpack an archive quietly. | |
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187 ## The third cell is the function to execute on output to get the files list. |
6082 | 188 ## The fourth cell indicates if the files may need to be manually moved |
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189 ## (i.e., tar and unzip decompress into the current directory while |
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190 ## bzip2 and gzip decompress the file at its location). |
6082 | 191 persistent commandlist; |
192 if (isempty (commandlist)) | |
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193 commandlist.gz = {'gzip -d -v -f -r "%s"', ... |
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194 'gzip -d -f -r "%s"', ... |
10549 | 195 @__parse_gzip__, true}; |
6082 | 196 commandlist.z = commandlist.gz; |
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197 commandlist.bz2 = {'bzip2 -d -v -f "%s"', ... |
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198 'bzip2 -d -f "%s"', ... |
10549 | 199 @__parse_bzip2__, true}; |
6082 | 200 commandlist.bz = commandlist.bz2; |
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201 commandlist.tar = {'tar xvf "%s"', ... |
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202 'tar xf "%s"', ... |
10549 | 203 @__parse_tar__, false}; |
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204 commandlist.targz = {'gzip -d -c "%s" | tar xvf -', ... |
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205 'gzip -d -c "%s" | tar xf -', ... |
10549 | 206 @__parse_tar__, false}; |
6082 | 207 commandlist.tgz = commandlist.targz; |
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208 commandlist.tarbz2 = {'bzip2 -d -c "%s" | tar xvf -', ... |
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209 'bzip2 -d -c "%s" | tar xf -', ... |
10549 | 210 @__parse_tar__, false}; |
6082 | 211 commandlist.tarbz = commandlist.tarbz2; |
212 commandlist.tbz2 = commandlist.tarbz2; | |
213 commandlist.tbz = commandlist.tarbz2; | |
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214 commandlist.zip = {'unzip -n "%s"', ... |
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215 'unzip -nq "%s"', ... |
10549 | 216 @__parse_zip__, false}; |
6082 | 217 endif |
218 | |
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219 ## Unzip doesn't actually care about the extension |
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220 if (strcmpi (filetype, "zip")) |
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221 nodotext = "zip"; |
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222 else |
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223 nodotext = ext(ext != '.'); |
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224 endif |
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225 |
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226 if (ispc && strcmp (nodotext, "tar")) |
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227 ## Change file pathname into a mingw style acceptable for tar |
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228 file = __w2mpth__ (file); |
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229 endif |
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230 |
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231 ## Create the output directory if necessary. |
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232 s = stat (dir); |
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233 if (isempty (s)) |
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234 [status, msg] = mkdir (dir); |
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235 if (! status) |
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236 error ("unpack: mkdir failed to create %s: %s", dir, msg); |
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237 endif |
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238 elseif (! S_ISDIR (s.mode)) |
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239 error ("unpack: %s: not a directory", dir); |
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240 endif |
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241 |
19234 | 242 if (isfield (commandlist, tolower (nodotext))) |
243 [commandv, commandq, parsefcn, move] = deal (commandlist.(nodotext){:}); | |
244 origdir = pwd (); | |
245 if (move) | |
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246 startdir = fileparts (file); |
19234 | 247 else |
248 startdir = origdir; | |
249 endif | |
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250 cstartdir = make_absolute_filename (startdir); |
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251 cenddir = make_absolute_filename (dir); |
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252 if (cenddir(end) == filesep) |
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253 cenddir(end) = []; |
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254 endif |
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255 needmove = move && ! is_same_file (cstartdir, cenddir); |
6082 | 256 if (nargout > 0 || needmove) |
257 command = commandv; | |
258 else | |
259 command = commandq; | |
260 endif | |
261 else | |
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262 warning ("unpack: unrecognized FILETYPE <%s>", nodotext); |
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263 filelist = {}; |
6082 | 264 return; |
265 endif | |
266 | |
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267 ## Save and restore the TAR_OPTIONS environment variable used by GNU tar. |
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268 tar_options_env = getenv ("TAR_OPTIONS"); |
6082 | 269 unwind_protect |
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270 unsetenv ("TAR_OPTIONS"); |
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271 cd (dir); |
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272 [status, output] = system (sprintf ([command " 2>&1"], file)); |
6082 | 273 unwind_protect_cleanup |
274 cd (origdir); | |
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275 if (! isempty (tar_options_env)) |
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276 setenv ("TAR_OPTIONS", tar_options_env); |
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277 endif |
6082 | 278 end_unwind_protect |
279 | |
280 if (status) | |
281 error ("unpack: unarchiving program exited with status: %d\n%s", | |
10549 | 282 status, output); |
6082 | 283 endif |
284 | |
6084 | 285 if (nargout > 0 || needmove) |
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286 ## Trim the last CR or NL if needed. |
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287 files = parsefcn (ostrsplit (output, "\r\n", true))'; |
6082 | 288 |
19234 | 289 ## Move files if necessary. |
6082 | 290 if (needmove) |
19234 | 291 [st, msg] = movefile (files, cenddir); |
6082 | 292 if (! st) |
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293 error ('unpack: unable to move files to "%s": %s', dir, msg); |
6082 | 294 endif |
295 | |
19234 | 296 ## Fix the names of the files since they were moved. |
297 files = strrep (files, cstartdir, cenddir); | |
6082 | 298 endif |
299 | |
300 ## Return output if requested. | |
301 if (nargout > 0) | |
302 filelist = files; | |
303 endif | |
304 endif | |
305 | |
306 endfunction | |
307 | |
308 function files = __parse_zip__ (output) | |
309 ## Parse the output from zip and unzip. | |
310 | |
19234 | 311 ## Skip first line which is Archive header. |
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312 files = char (output(2:end)); |
19234 | 313 ## Trim constant width prefix and return cell array. |
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314 files = cellstr (files(:,14:end)); |
6082 | 315 endfunction |
316 | |
317 function output = __parse_tar__ (output) | |
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318 ## BSD tar emits file actions in the first 2 columns |
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319 |
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320 if (tar_is_bsd ()) |
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321 output = cellfun (@(x) x(3:end), output, 'UniformOutput', false); |
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322 endif |
6082 | 323 endfunction |
324 | |
325 function files = __parse_gzip__ (output) | |
326 ## Parse the output from gzip and gunzip returning the files | |
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327 ## compressed (or decompressed). |
6082 | 328 |
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329 files = regexprep (output, '^.+ -- replaced with (.*)$', '$1'); |
6082 | 330 endfunction |
331 | |
332 function files = __parse_bzip2__ (output) | |
333 ## Parse the output from bzip2 and bunzip2 returning the files | |
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334 ## compressed (or decompressed). |
6082 | 335 |
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336 ## Strip leading blanks and .bz2 extension from filename |
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337 files = regexprep (output, '^\s+(.*)\.bz2: .*', '$1'); |
19234 | 338 endfunction |
339 | |
340 | |
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341 %!testif HAVE_ZLIB |
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342 %! envvar = {"TMPDIR", "TMP"}; |
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343 %! envdir = cellfun (@(x) getenv (x), envvar, "uniformoutput", false); |
19234 | 344 %! unwind_protect |
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345 %! cellfun (@(x) unsetenv (x), envvar); |
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346 %! ## Create temporary directory and file for packing and unpacking |
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347 %! dirname = tempname (); |
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348 %! assert (mkdir (dirname)); |
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349 %! filename = tempname (); |
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350 %! fid = fopen (filename, "wt"); |
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351 %! assert (fid >= 0); |
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352 %! fprintf (fid, "Hello World\n"); |
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353 %! fprintf (fid, "123 456 789\n"); |
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354 %! fclose (fid); |
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355 %! |
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356 %! unwind_protect |
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357 %! copyfile (filename, [filename ".orig"]); |
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358 %! gzip (filename, dirname); |
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359 %! [~, f] = fileparts (filename); |
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360 %! filelist = unpack (fullfile (dirname, [f ".gz"]), tempdir); |
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361 %! assert (filelist{1}, filename); |
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362 %! fid = fopen ([filename ".orig"], "rb"); |
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363 %! assert (fid >= 0); |
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364 %! orig_data = fread (fid); |
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365 %! fclose (fid); |
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366 %! fid = fopen (filename, "rb"); |
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367 %! assert (fid >= 0); |
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368 %! new_data = fread (fid); |
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369 %! fclose (fid); |
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370 %! if (orig_data != new_data) |
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371 %! error ("unpack: Unpacked file does not equal original"); |
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372 %! endif |
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373 %! unwind_protect_cleanup |
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374 %! unlink (filename); |
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375 %! unlink ([filename ".orig"]); |
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376 %! confirm_recursive_rmdir (false, "local"); |
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377 %! rmdir (dirname, "s"); |
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378 %! end_unwind_protect |
19234 | 379 %! unwind_protect_cleanup |
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380 %! ## Restore environment variables TMPDIR, TMP |
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381 %! for i = 1:numel (envvar) |
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382 %! if (isempty (envdir{i})) |
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383 %! unsetenv (envvar{i}); |
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384 %! else |
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385 %! setenv (envvar{i}, envdir{i}); |
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386 %! endif |
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387 %! endfor |
19234 | 388 %! end_unwind_protect |
389 | |
390 ## Test input validation | |
391 %!error unpack () | |
392 %!error unpack (1,2,3,4) | |
393 %!error <FILE must be a string or cell array of strings> unpack (1) | |
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394 %!error <FILE "_%NOT_A_FILENAME%_" not found> unpack ("_%NOT_A_FILENAME%_") |
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395 %!error <FILE "_%NOT_A_FILENAME%_" not found> unpack ({"_%NOT_A_FILENAME%_"}) |
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396 %!error <FILE "_%NOT_A_FILENAME%_" not found> unpack ({"_%NOT_A_FILENAME%_", "2nd_filename"}) |
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397 %!error <FILETYPE must be a string> |
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398 %! if (isunix || ismac) |
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399 %! unpack ("/", [], 1) |
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400 %! else |
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401 %! unpack ('C:\', [], 1) |
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402 %! endif |
19234 | 403 %!error <FILETYPE must be given for a directory> |
404 %! if (isunix || ismac) | |
405 %! unpack ("/"); | |
406 %! else | |
407 %! unpack ('C:\'); | |
408 %! endif | |
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409 %!error <FILETYPE must be "gz" for a directory> |
19234 | 410 %! if (isunix || ismac) |
411 %! unpack ("/", [], "foobar"); | |
412 %! else | |
413 %! unpack ('C:\', [], "foobar"); | |
414 %! endif |