[bug #65267] astscript-fits-view incorrect call to ds9 with more inputs than HDUs

[Mohammad Akhlaghi]

URL:
  <https://savannah.gnu.org/bugs/?65267>

                 Summary: astscript-fits-view incorrect call to ds9 with more
inputs than HDUs
                   Group: GNU Astronomy Utilities
               Submitter: makhlaghi
               Submitted: Tue 06 Feb 2024 08:36:29 PM CET
                Category: Installed scripts
                Severity: 3 - Normal
              Item Group: Crash
                  Status: In Progress
                 Privacy: Public
             Assigned to: makhlaghi
             Open/Closed: Open
         Discussion Lock: Any


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Follow-up Comments:


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Date: Tue 06 Feb 2024 08:36:29 PM CET By: Mohammad Akhlaghi <makhlaghi>
When more than one image is given to this script, and the number of HDUs given
to the script is less than the inputs, this script will not complain and will
incorrectly call DS9 (with an empty HDU); causing DS9 to crash:


$ astscript-fits-view a.fits b.fits c.fits -h2


We should add a check to inform the user of this problem (as in all Gnuastro
programs) and add a new '--globalhdu' (like in other Gnuastro programs that
take multiple inputs) to let the user specify a single HDU for all the files.







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