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dotfiles/.config/zsh/lib/pswalk.zsh
Konstantin Demin 8834da817c
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zsh: update
2024-03-04 15:35:55 +03:00

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#!/bin/zsh
z-proc-exists() {
[ -n "${1:?}" ]
while [ -n "${ZSHU[procfs]}" ] ; do
[ -d "${ZSHU[procfs]}" ] || return 1
[ -f "${ZSHU[procfs]}/$1/status" ]
return $?
done
ps -o 'pid=' -p "$1" >/dev/null 2>&1
}
typeset -Uga ZSHU_PARENTS_PID
typeset -ga ZSHU_PARENTS_NAME
function {
local procfs
while [ -n "${ZSHU[procfs]}" ] ; do
[ -d "${ZSHU[procfs]}" ] || break
procfs=1 ; break
done
local i c x _unused
i=${PPID}
while : ; do
[ -n "$i" ] || break
## don't deal with PID1
[ "$i" = 1 ] && break
ZSHU_PARENTS_PID+=( $i )
c=
while [ "${procfs}" = 1 ] ; do
[ -f "${ZSHU[procfs]}/$i/cmdline" ] || break
read -d $'\0' -rs c <<< $(cat "${ZSHU[procfs]}/$i/cmdline")
break
done
if [ -z "$c" ] ; then
read -rs c _unused <<< "$(ps -o 'comm=' -p "$i" 2>/dev/null)"
fi
[ -n "$c" ] && ZSHU_PARENTS_NAME+=( "${c:t}" )
x=
while [ "${procfs}" = 1 ] ; do
[ -f "${ZSHU[procfs]}/$i/status" ] || break
# read -rs _unused x <<< "$(cat "${ZSHU[procfs]}/$i/status" | grep -F 'PPid:')"
while read -rs _unused c ; do
[ "${_unused}" = 'PPid:' ] || continue
x=$c ; break
done < "${ZSHU[procfs]}/$i/status"
break
done
if [ -z "$x" ] ; then
read -rs x _unused <<< "$(ps -o 'ppid=' -p "$i" 2>/dev/null)"
fi
i=$x
done
typeset -r ZSHU_PARENTS_PID ZSHU_PARENTS_NAME
}
typeset -gA ZSHU_RUN
z-run-test() {
local k i
k=$1 ; shift
for i ( ${ZSHU_PARENTS_NAME} ) ; do
(( ${+argv[(r)$i]} )) || continue
ZSHU_RUN[$k]=1
return
done
ZSHU_RUN[$k]=0
}
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