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support tmux split-pane when restoring processes with ps strategy #518

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support tmux split-pane when restoring processes with ps strategy #518

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552534a
support `tmux split-pane` when restoring processes with `ps` strategy
jyn514 Aug 13, 2024
a6993c5
lol my last fix didn't work when the child inherits the controlling t…
jyn514 Aug 22, 2024
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26 changes: 22 additions & 4 deletions save_command_strategies/ps.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -10,11 +10,29 @@ exit_safely_if_empty_ppid() {
fi
}

default_command() {
tmux_command=$(tmux show-option default-command)
tmux_shell=$(tmux show-option default-shell)
echo "${tmux_command:-${tmux_shell:-${SHELL:-/bin/sh}}}"
}

full_command() {
ps -ao "ppid,args" |
sed "s/^ *//" |
grep "^${PANE_PID}" |
cut -d' ' -f2-
# get the absolute path and args of the running process
parent=$(ps -p "${PANE_PID}" -o args | tail -n +2)
if echo "$parent" | grep --quiet -E -- "-?$(basename "$(default_command)")"; then
# normally the PID is a shell. return the child that has an associated controlling terminal.
child=$(ps -ao "ppid,args" |
sed "s/^ *//" |
grep "^${PANE_PID}" |
cut -d' ' -f2-)
if [ "$child" ]; then
printf %s "$child"
return
fi
fi
# if this command was spawned with `tmux split-pane`, it has no parent shell.
# just return the args for the PID itself.
ps -p "${PANE_PID}" -o args | tail -n +2
}

main() {
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