bugGNU Octave - Bugs: bug #54657, unpack fails with explicit archive...


bug #54657: unpack fails with explicit archive type

Submitted by:  Muhali <muhali>
Submitted on:  Thu 13 Sep 2018 04:15:50 PM UTC
Category:  Octave Function Severity:  3 - Normal
Priority:  5 - Normal Item Group:  None
Status:  Fixed Assigned to:  None
Originator Name:  Open/Closed:  * Closed
Release:  * 4.4.1 Operating System:  * GNU/Linux
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Mon 24 Sep 2018 03:28:05 PM UTC, comment #4: 

The unpack function was a mess and the issues extended into untar, unzip, and the test suite.  I think I fixed everything up in this changeset (https://hg.savannah.gnu.org/hgweb/octave/rev/75ed70a1c108).  It's on the development branch because there was so many changes in the end.

Rik <rik5>
Project Administrator
Fri 14 Sep 2018 08:16:51 AM UTC, comment #3: 

I get the same error message as you, and a file "outz.zip".

Muhali <muhali>
Thu 13 Sep 2018 07:13:03 PM UTC, comment #2: 

But there is something totally wrong with the filetype processing.  The documentation says the filetype should be 'gz' for gzip format, but in fact the script requires 'gunzip'.

Rik <rik5>
Project Administrator
Thu 13 Sep 2018 06:31:01 PM UTC, comment #1: 

Can you report the error you get as well?  When I try your code in octave-4.4.1 I get this:

octave:1> dlmwrite("out", pi) ;
octave:2> zfile = "out.zip" ;
octave:3> zip(zfile, "out") ;
octave:4> unpack(zfile) ;
octave:5> zfile = "outz" ;
octave:6> zip(zfile, "out") ;
octave:7> unpack(zfile, [], "zip") ;
error: unpack: FILE "outz" not found
error: called from
    unpack at line 93 column 9

The error is not really with unpack.  The zip() function automatically adds the extension ".zip" to a bare text filename.  When zfile is "outz" the result is "outz.zip" which then unpack can't find.

Rik <rik5>
Project Administrator
Thu 13 Sep 2018 04:15:50 PM UTC, original submission:  

For the unpack function, the archive type can be explicitly specified in an argument. I assume that applies to cases where that type is not given by the file extension. But in that case it doesn't work, as shown by the error of the following script:

dlmwrite("out", pi) ;

zfile = "out.zip" ;
zip(zfile, "out") ;
unpack(zfile) ;

zfile = "outz" ;
zip(zfile, "out") ;
unpack(zfile, [], "zip") ;

Muhali <muhali>


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    Follow 3 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2018-09-24 rik5 StatusNeed Info => Fixed
        Open/ClosedOpen => Closed
    2018-09-13 rik5 StatusNone => Need Info

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