From b1107e4a5fdb949d695686866ea61cb1c21519be Mon Sep 17 00:00:00 2001
From: Andrew Cady <d@jerkface.net>
Date: Wed, 31 Jul 2024 15:12:03 -0400
Subject: experiments

doesn't quite work

can't launch top for tty issue

need to call bash -i from opposite side to inherit the screen terminal

also the COPROC fd is not inherited, wtf?
---
 twopane.bash | 39 ++++++++++++++++++++++++++++++++-------
 1 file changed, 32 insertions(+), 7 deletions(-)

(limited to 'twopane.bash')

diff --git a/twopane.bash b/twopane.bash
index 6e5aeca..59b8d4b 100644
--- a/twopane.bash
+++ b/twopane.bash
@@ -5,27 +5,52 @@ set -o pipefail
 shopt -s lastpipe
 
 TWOPANE=$(mktemp -d)
+export TWOPANE
+trap 'rm -r "$TWOPANE"' EXIT
 STY=twopane.${TWOPANE##*/}
 SCREENRC=$TWOPANE/screenrc
-export TWOPANE
 cat > "$SCREENRC" <<'.'
 unbindall
 escape \0\0
+escape ``
 caption string '%t'
 layout new
 split
 focus top
-screen -ln -t 'output' 0 nc -NUls "$TWOPANE"/socket
+screen -ln -t 'output' 0 sh -c 'socat -U STDOUT UNIX-RECV:"$TWOPANE"/socket; screen -X quit'
 title 'output'
 focus bottom
-resize 4
-# screen -ln -t 'input' 1 bash "$TWOPANE"/bashrc
-screen -ln -t 'input' 1 nc -NU "$TWOPANE"/socket
+resize 8
+focus top
+fit
+focus bottom
+screen -ln -t 'input' 1 bash "$TWOPANE"/bashrc
 layout save 0
 .
+
 cat > "$TWOPANE"/bashrc <<'.'
-coproc nc -NU "$TWOPANE"/socket
-bash -i 2>${COPROC[1]} <${COPROC[0]}
+set -e
+trap "screen -X quit" EXIT
+coproc socat -u SYSTEM:"bash -i",pty,ctty,setsid,stderr,cloexec=0 UNIX-SENDTO:"$TWOPANE"/socket
+exec 30>&${COPROC[1]}
+send()
+{
+        printf '%s\n' "$*" >&30
+}
+sendc()
+{
+        printf '%s' "$*" >&30
+}
+send echo hello world
+sendc echo hello
+sleep 1
+send world2
+sleep 1
+send top
+export -f send sendc
+bash -i || true
+send echo hello world3
+sleep 1
 .
 
 screen -c "$SCREENRC" -m -S "$STY" -ln
-- 
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