On Monday, May 1, 2017 at 3:32:04 PM UTC+3, Bram Moolenaar wrote:
> Ramel Eshed wrote:
>
> > On Sunday, April 30, 2017 at 9:24:13 PM UTC+3, Bram Moolenaar wrote:
> > > Ramel Eshed wrote:
> > >
> > > > On Sunday, April 30, 2017 at 5:25:08 PM UTC+3, Bram Moolenaar wrote:
> > > > > Ramel Eshed wrote:
> > > > >
> > > > > > This is not the case with every job, but redirecting the following
> > > > > > script output to a buffer causes messages to disappear from command
> > > > > > line:
> > > > > >
> > > > > > -- loop.sh --
> > > > > > #!/bin/bash
> > > > > > for i in `seq 1 1000`;
> > > > > > do
> > > > > > echo $i
> > > > > > sleep 0.008s
> > > > > > done
> > > > > >
> > > > > > vim -u NONE -N
> > > > > > :call job_start('loop.sh', {'out_io': 'buffer', 'out_buf':1})
> > > > > >
> > > > > > while the numbers are running try to do :pwd -this command's output
> > > > > > will disappear.
> > > > > >
> > > > > > Also (not related to this issue), the buffer (which the job output
> > > > > > was
> > > > > > redirected to) is only updated in normal and insert mode but not
> > > > > > while
> > > > > > typing in command-line mode. Is it possible to update the buffer
> > > > > > also
> > > > > > for command-line?
> > > > >
> > > > > I suspect these are opposite requests. Vim can only update the whole
> > > > > screen, because the redraw causes any output from commands to be
> > > > > cleared. When looking at the output of :pwd, Vim is probably in Normal
> > > > > mode, thus redraws to show the new buffer content.
> > > >
> > > > If I use
> > > > :call job_start('ls -lR /', {'out_io': 'buffer', 'out_buf':1})
> > > > instead of the above script, I can still see the :pwd command output.
> > > > How come it's not cleared as well?
> > > >
> > > > > I could check if we can update the window only. This probably only
> > > > > works
> > > > > when the command line has not scrolled.
> > >
> > > I have sent out patch 8.0.0592. This attempts to update the buffer that
> > > shows job output as often as possible. And it tries to keep the command
> > > line and command output. Please check it out. It does update the
> > > buffer more often than before, and should keep the output of commands
> > > like ":pwd". It may cause new problems, I only tested a few things.
> > >
> > I tested this patch with my plugins and it seems that both issues are
> > solved now. There is a minor issue with text and cursor flickering in
> > the command line, you can play with the sleep delay in the script
> > above and see if there is something you can do.
> > Many thanks!
>
> It is unlikely the cursor flickering can be fixed. It has to be
> switched off to be able to redraw the window for the modified buffer.
>
Besides of the cursor, the part of the command that has already been typed
flickers as well, can you see that?
Also, I found a problem with the command line completion menu - it is cleared
while the buffer is updated. You can see that by running my example above after
:set wildmode=list. While the buffer is updated try to type :set and then hit
tab -the completion menu will be cleared.
> --
> Veni, Vidi, VW -- I came, I saw, I drove around in a little car.
>
> /// Bram Moolenaar -- [email protected] -- http://www.Moolenaar.net \\\
> /// sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
> \\\ an exciting new programming language -- http://www.Zimbu.org ///
> \\\ help me help AIDS victims -- http://ICCF-Holland.org ///
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