bugGNU Octave - Bugs: bug #49334, addpath(pwd) removes '.' from path

 
 

bug #49334: addpath(pwd) removes '.' from path

Submitter:  None
Submitted:  Thu 13 Oct 2016 01:19:42 PM UTC
 
Category:  Octave Function Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Incorrect Result
Status:  Fixed Assigned to:  None
Originator Name:  Houtan Bastani Originator Email:  -email is unavailable-
Open/Closed:  * Closed Release:  * 4.2.0-rc2
Operating System:  * Mac OS
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Thu 13 Oct 2016 03:27:10 PM UTC, comment #1: 

Happily, this has already been fixed.  See bug #49184.  The fix was made after the 4.2.0-rc2 release candidate and will be part of -rc3, or the final release.

Rik <rik5>
Project Administrator
Thu 13 Oct 2016 01:19:42 PM UTC, original submission:  

Using `addpath(pwd)` to add the current working directory to the path removes '.' from the path. If you then change directories and run a `.m` file, Octave tells you that the file is undefined.

The following is a minimum working example to show the removal of '.' from the path and, further down, that Octave no longer finds a file that is in the current directory.

% Show that addpath(pwd) removes '.' from path
find(strcmp(strsplit(path,":"),'.'))
addpath(pwd)
find(strcmp(strsplit(path,":"),'.'))

% Create tmp/file_to_run.m
mkdir tmp;
cd tmp;
fname = 'file_to_run';
fid = fopen([fname '.m'],'w');
fprintf(fid, 'a=1');
fclose(fid);

% Show that Octave no longer finds file_to_run.m because '.' is not in the path
pwd
ls([fname '.m'])
evalin('base', fname)

NB: I am using Octave 4.2.0-rc2 on OS X 10.12 installed through Homebrew, but I get the same bug on Octave 4.2.0-rc2 that I built myself on Debian Jessie.

Anonymous

 

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Attached Files
file #38718:  bug.m added by None (239B - application/octet-stream - the above code in a .m file)

 

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    Follow 3 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2016-10-13 rik5 StatusNone Fixed
        Open/ClosedOpen Closed
    2016-10-13 None Attached File- Added bug.m, #38718

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