[Scilab-users] file permission and demo_gui()

[Samuel Gougeon]

Le 23/12/2020 à 18:40, Jean-Yves Baudais a écrit :
>> I will try to test by forcing File permissions on my system, and see
>> what copyfile() does.
>
> I tested for different combinaison of permissions ('w', 'r', 'x'): copyfile() keeps them unchanged. (Permissions are kept for 'user' only, I guess permission mask or something like that for 'group' and 'other'.)


copyfile has no option to force permissions of the copy.
You might do and test the following:

 1. replace the copyfile instruction with a mgetl + mputl combination:
    // r = copyfile(File, File2);
    r = mgetl(File);
    mputl(r, File2);

 2. exec demo_gui.sci to update it

 3. Remove demo_gui_dockable.xml in TMPDIR, or just exit and run a new
    session (so with a new TMPDIR)

 4. run demo_gui(), and play with its dockable preferences.


If it works, i will push a patch for Scilab 6.1.1. Anyway the copyfile 
issue would have to be addressed. Since copyfile() is used 18 times 
within Scilab, other issues elsewhere could be expected. At least, the 
fact that permissions are kept should be documented in the copyfile help 
page.


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