[bug #32450] pager does not work within a menuentry if loaded via configfile

[Josh Triplett]

URL:
  <http://savannah.gnu.org/bugs/?32450>

                 Summary: pager does not work within a menuentry if loaded
via configfile
                 Project: GNU GRUB
            Submitted by: joshtriplett
            Submitted on: Sat 12 Feb 2011 11:16:49 PM PST
                Category: None
                Severity: Major
                Priority: 5 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 
                 Release: Bazaar - trunk
         Reproducibility: Every Time
         Planned Release: None

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Details:

Originally reported as http://bugs.debian.org/612995

>From the command line, I can "set pager=1", and then either cat a long file
or use a for loop to echo 30 lines, and see that the pager puts up a "-- MORE
--" prompt and waits for a key.  However, the same thing doesn't seem to work
from within a menuentry in a file loaded by "configfile".  Try putting the
following file as "test.cfg" somewhere grub can get at, and then loading it
via "configfile /path/to/test.cfg" from the grub command line:


set pager=1

menuentry "Always present" {
    echo Insert something always useful here.
    for x in 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 ;
do
        echo Piles of output
    done
}

x=3
if [ "$x" -gt 0 ] ; then
    menuentry "Conditionally present" {
        echo Insert something conditionally useful here.
    }
fi

if [ "$x" -gt 5 ] ; then
    menuentry "Conditionally present (and missing)" {
        echo Insert something conditionally non-useful here.
    }
fi


Loading test.cfg via configfile will bring up a menu with two entries.
Choosing either one of them should prompt for a key at the end of the
menuentry, and choosing the first one should additionally have a MORE prompt
after 24 lines as well as the prompt at the end.

If instead I make that file grub.cfg, rather than loading it via configfile
from the command line, then the MORE prompt works in the first menu entry, but
I still don't get prompts at the end of each menuentry's output like I did
with previous versions of GRUB2.  (I know that it works with at least bzr
revision 2587.)




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