is there a code to open and run all m files in a folder?

Asked by Itzik Ben Shabat on 22 Mar 2014

Latest activity Commented on by Image Analyst on 25 Mar 2014

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Hi, I have multiple (about 50) different .m files in a folder. I wish to open and run each and every one of them using a matlab script. the output of this script would be a logical vector indicating which files had errors and which did not.

so is there a matlab code/ function that can open, run and check if there were run errors? thanks

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5 Answers

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Answer by Jan on 22 Mar 2014

Accepted Answer

What about this:

folder  = 'C:\YourFolder';
list    = dir(fullfile(folder, '*.m');
nFile   = length(list);
success = false(1, nFile);
for k = 1:nFile
  file = list(k).name;
  try
    run(fullfile(folder, file));
    success(k) = true;
  catch
    fprintf('failed: %s\n', file);
  end
end

3 Comments

Itzik Ben Shabat on 23 Mar 2014

Hi, Great! that did it! a few notes though. this script should not be inside the folder being checked ( got myself to an infinite loop there).

and another question, is there a way to go over the file to see if a certain string appears ? say i want to check all of the file that managed to run if they have the "figure" code.

Jos (10584) on 25 Mar 2014

You can check if the mfile is the current file using MFILENAME, as in,

if ~strcmpi(fullfile(folder, file), mfilename('fullpath'))
...

Image Analyst on 25 Mar 2014

I don't know what "the figure code" is. Do you mean if the m-file has an associated .fig file? Or do you mean if the word "figure" appears inside the m-file, especially as a statement/function call? Anyway, to see if a certain string appears in another string, you can use strfind().

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Answer by Jakob Sørensen on 22 Mar 2014

I don't know if there is a built-in function, but I think you could fairly easy make one yourself. Using the command dir you can acquire all the file names in a folder, then just loop through them, running them one-by-one.

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Answer by Andy Campbell on 24 Mar 2014

Edited by Andy Campbell on 24 Mar 2014

To expand on per's answer, in R2014a you can do this using parameterized tests:

classdef TestAllFiles < matlab.unittest.TestCase
      properties(TestParameter)
          file = getListOfFiles;
      end
      methods(Test)
          function testFileDoesNotError(testCase, file)
              run(fullfile('C:\YourFolder', file));
          end
      end
  end
function files = getListOfFiles
list    = dir(fullfile('C:\YourFolder', '*.m'));
files = {list.name};
end

Then you can run them all and get your results:

result = runtests('TestAllFiles')
logicalVector = [result.Passed];

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Itzik Ben Shabat on 25 Mar 2014

thank you. i already implemented what Jan offered but ill look into this as well.

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Answer by per isakson on 22 Mar 2014

Edited by per isakson on 22 Mar 2014

Yes, there is

Unit Testing Framework, Write and run tests for MATLAB programs

This is much more than than you are asking for, however, it well worth to start applying Unit Testing. See http://software-carpentry.org/v4/test/ and http://stackoverflow.com/questions/67299/is-unit-testing-worth-the-effort

And see:

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Answer by Image Analyst on 22 Mar 2014

See the FAQ: http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F

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