[OE-core] [PATCH] terminal: Support old tmux version (<1.9) when querying height value

[Leonardo Sandoval]

This patch did not solve the case when multiple panes are present. I 
will send a V2 patch.


On 11/03/2015 04:34 PM, leonardo.sandoval.gonzalez at linux.intel.com wrote:
> From: Leonardo Sandoval <leonardo.sandoval.gonzalez at linux.intel.com>
>
> Old tmux version (< 1.9) does not support nested formats on the -F parameter, so
> if nested format does not give any answer, do the query in two steps.
>
> Tested on tmux 1.6.
>
> Signed-off-by: Leonardo Sandoval <leonardo.sandoval.gonzalez at linux.intel.com>
> ---
>   meta/lib/oe/terminal.py |   15 ++++++++++++++-
>   1 file changed, 14 insertions(+), 1 deletion(-)
>
> diff --git a/meta/lib/oe/terminal.py b/meta/lib/oe/terminal.py
> index 52a8913..686b1ce 100644
> --- a/meta/lib/oe/terminal.py
> +++ b/meta/lib/oe/terminal.py
> @@ -218,11 +218,24 @@ def spawn(name, sh_cmd, title=None, env=None, d=None):
>
>   def check_tmux_pane_size(tmux):
>       import subprocess as sub
> +    size = 0
>       try:
>           p = sub.Popen('%s list-panes -F "#{?pane_active,#{pane_height},}"' % tmux,
>                   shell=True,stdout=sub.PIPE,stderr=sub.PIPE)
>           out, err = p.communicate()
> -        size = int(out.strip())
> +        try:
> +            size = int(out.strip())
> +        except ValueError:
> +            # Older tmux versions (< 1.9) does not support nested formats,
> +            # so try it in two steps
> +            p = sub.Popen('%s list-panes -F "#{?pane_active,yes,no}"' % tmux,
> +                shell=True,stdout=sub.PIPE,stderr=sub.PIPE)
> +            out, err = p.communicate()
> +            if "yes" in out.strip():
> +                p = sub.Popen('%s list-panes -F "#{pane_height}"' % tmux,
> +                              shell=True,stdout=sub.PIPE,stderr=sub.PIPE)
> +                out, err = p.communicate()
> +                size = int(out.strip())
>       except OSError as exc:
>           import errno
>           if exc.errno == errno.ENOENT:
>