Mercurial > hg > octave-lyh

comparison scripts/miscellaneous/gzip.m @ 6869:f9c893831e68

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
[project @ 2007-09-06 16:38:44 by dbateman]
author dbateman
date Thu, 06 Sep 2007 16:38:44 +0000
parents
children 8b0cfeb06365
comparison
equal deleted inserted replaced
6868:975fcdfb0d2d 6869:f9c893831e68
1 ## Copyright (C) 2007 David Bateman
2 ##
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
7 ## the Free Software Foundation; either version 2, or (at your option)
8 ## any later version.
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
16 ## along with Octave; see the file COPYING. If not, write to the Free
17 ## Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
18 ## 02110-1301, USA.
19
20 ## -*- texinfo -*-
21 ## @deftypefn {Function File} {@var{entries} =} gzip (@var{files})
22 ## @deftypefnx {Function File} {@var{entries} =} gzip (@var{files}, @var{outdir})
23 ## Compress the list of files and/or directories specified in @var{files}.
24 ## Each file is compressed separately and a new file with a '.gz' extension
25 ## is create. The original file is not touch. If @var{rootdir} is defined
26 ## the compressed versions of the files are placed in this directory.
27 ## @seealso{gunzip, zip, tar}
28 ## @end deftypefn
29
30 function entries = gzip (files, outdir)
31
32 if (nargin == 1 || nargin == 2)
33
34 if (nargin == 2 && ! exist (outdir, "dir"))
35 error ("gzip: output directory does not exist");
36 endif
37
38 if (ischar (files))
39 files = cellstr (files);
40 endif
41
42 if (nargin == 1)
43 outdir = tmpnam ();
44 mkdir (outdir);
45 endif
46
47 cwd = pwd();
48 unwind_protect
49 if (iscellstr (files))
50 files = glob (files);
51
52 ## Ignore any file with a .gz extension
53 files (cellfun (@(x) strcmp (x(end-2:end), ".gz"), files)) = [];
54
55 copyfile (files, outdir);
56 [d, f] = myfileparts(files);
57 cd (outdir);
58
59 cmd = sprintf ("gzip -r %s", sprintf (" %s", f{:}));
60
61 [status, output] = system (cmd);
62
63 if (status == 0)
64
65 if (nargin == 2)
66 gzfiles = cellfun(@(x) fullfile (outdir, sprintf ("%s.gz", x)), ...
67 f, "UniformOutput", false);
68 else
69 movefile (cellfun(@(x) sprintf ("%s.gz", x), f, ...
70 "UniformOutput", false), cwd);
71 gzfiles = cellfun(@(x) sprintf ("%s.gz", x), ...
72 files, "UniformOutput", false);
73 endif
74
75 if (nargout > 0)
76 entries = gzfiles;
77 endif
78 else
79 error ("gzip: failed with exit status = %d", status);
80 endif
81
82 else
83 error ("gzip: expecting all arguments to be character strings");
84 endif
85 unwind_protect_cleanup
86 cd(cwd);
87 if (nargin == 1)
88 crr = confirm_recursive_rmdir ();
89 unwind_protect
90 confirm_recursive_rmdir (false);
91 rmdir (outdir, "s");
92 unwind_protect_cleanup
93 confirm_recursive_rmdir (crr);
94 end_unwind_protect
95 endif
96 end_unwind_protect
97 else
98 print_usage ();
99 endif
100
101 endfunction
102
103 function [d, f] = myfileparts (x)
104 [d, f, ext] = cellfun (@(x) fileparts (x), x, "UniformOutput", false);
105 f = cellfun (@(x, y) sprintf ("%s%s", x, y), f, ext, ...
106 "UniformOutput", false);
107 idx = cellfun (@(x) isdir (x), x);
108 d(idx) = "";
109 f(idx) = x(idx);
110 endfunction