113 lines
2.1 KiB
Bash
113 lines
2.1 KiB
Bash
#!/bin/bash
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# file: modules/background.sh
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# do not edit, this file will be overwritten on update
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# This file is public domain in the USA and all free countries.
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# Elsewhere, consider it to be WTFPLv2. (wtfpl.net/txt/copying)
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#
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#### $$VERSION$$ v0.80-dev3-1-gbccd064
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# source from commands.sh if you want ro use interactive or background jobs
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######
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# interactive and background functions
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# old syntax as aliases
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background() {
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start_back "${CHAT[ID]}" "$1" "$2"
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}
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startproc() {
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start_proc "${CHAT[ID]}" "$1" "$2"
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}
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checkback() {
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check_back "${CHAT[ID]}" "$1"
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}
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checkproc() {
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check_proc "${CHAT[ID]}" "$1"
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}
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killback() {
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kill_back "${CHAT[ID]}" "$1"
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}
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killproc() {
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kill_proc "${CHAT[ID]}" "$1"
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}
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# internal functions
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# $1 chatid
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# $2 prefix
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fifoname(){
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echo "$2${ME}_$1"
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}
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# $1 pipename
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listproc() {
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# shellcheck disable=SC2009
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ps -ef | grep -v grep| grep "$1" | sed 's/\s\+/\t/g' | cut -f 2
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}
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# inline and backgound functions
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# $1 chatid
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# $2 program
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# $3 jobname
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start_back() {
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local fifo; fifo="${TMPDIR:-.}/$(fifoname "$1")"
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echo "$1:$3:$2" >"${fifo}$3-back.cmd"
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start_proc "$1" "$2" "back-$3-"
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}
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# $1 chatid
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# $2 program
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# $3 prefix
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start_proc() {
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[ "$2" = "" ] && return
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kill_proc "$1" "$3"
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local fifo; fifo="${TMPDIR:-.}/$(fifoname "$1" "$3")"
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mkfifo "${fifo}"
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{ set -f
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# shellcheck disable=SC2002
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cat "${fifo}" | $2 | "${SCRIPT}" outproc "${1}" "${fifo}"
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} &>>"${fifo}.log" &
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disown -a
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}
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# $1 chatid
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# $2 jobname
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check_back() {
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check_proc "$1" "back-$2-"
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}
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# $1 chatid
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# $2 prefix
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check_proc() {
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[ "$(listproc "$(fifoname "$1" "$2")")" != "" ]
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# shellcheck disable=SC2034
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res=$?; return $?
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}
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# $1 chatid
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# $2 jobname
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kill_back() {
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kill_proc "$1" "back-$2-"
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rm -f "${TMPDIR:-.}/$(fifoname "$1")$2-back.cmd"
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}
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# $1 chatid
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# $2 prefix
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kill_proc() {
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local fifo; fifo="$(fifoname "$1" "$2")"
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kill -15 "$(listproc "${fifo}")" 2>/dev/null
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fifo="${TMPDIR:-.}/${fifo}"
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[ -s "${fifo}.log" ] || rm -f "${fifo}.log"
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[ -p "${fifo}" ] && rm -f "${fifo}";
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}
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# $1 chat
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# $2 message
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forward_interactive() {
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local fifo; fifo="${TMPDIR:-.}/$(fifoname "$1")"
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[ -p "${fifo}" ] && echo "$2" >"${fifo}"
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}
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