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test pipeline pid access through jobs -p
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| #!/usr/bin/env -S -u sh -- ${sh} | |
| # Requires linux and ksh93 (u+m or v-) or bash 5.3+ | |
| set +m | |
| if [[ -v KSH_VERSION ]]; then | |
| command set -o posix 2>/dev/null | |
| builtin pids | |
| [[ -v .sh.pid ]] || | |
| function .sh.pid.get { | |
| (( .sh.value = ${ pids -f "%(pid)d"; } )) | |
| } | |
| [[ -v .sh.pgid ]] || | |
| function .sh.pgid.get { | |
| (( .sh.value = ${ pids -f "%(pgid)d"; } )) | |
| } | |
| nameref \ | |
| sh_file=.sh.file \ | |
| sh_pid=.sh.pid \ | |
| sh_pgid=.sh.pgid | |
| [[ -o xtrace ]] && .sh.fun.set () { set -x; } | |
| fi | |
| if [[ -v BASH_VERSION ]]; then | |
| shopt -s lastpipe extglob expand_aliases | |
| alias \ | |
| 'nameref=typeset -n' \ | |
| 'integer=typeset -i' | |
| fi | |
| if [[ -v BASH_VERSION ]]; then | |
| typeset -gx BASH_COMPAT=51 | |
| nameref \ | |
| sh_file=BASH_SOURCE \ | |
| sh_pid=BASHPID \ | |
| sh_pgid='_sh_pgid[${|typeset -g _sh_pgid=; REPLY=0;}]' | |
| function pgid { | |
| nameref ret=$1 | |
| integer p=BASHPID | |
| ret=$(ps -wwp "$p" -o pgid:1=) | |
| } | |
| typeset -g _sh_pgid | |
| nameref sh_pgid='_sh_pgid[${|pgid "_sh_pgid[0]"; REPLY=0;}]' | |
| fi | |
| function p { | |
| nameref o=$1 | |
| shift | |
| typeset j | |
| j=${ jobs -p; } j=${j//$'\n'/,} | |
| print -u "$o" -f '%s: %s%s%s\n' -- \ | |
| "$1" ${j:+"${j},"} ${sh_pgid:+"${sh_pgid},"} "${sh_pid}" | |
| } | |
| alias 'p=p fd' | |
| function m { | |
| if (( sh_pid != 1 )); then | |
| typeset rl=${ type -p readlink; } | |
| typeset -x sh | |
| sh=${ "$rl" -sn "/proc/${sh_pid}/exe"; } || return | |
| exec unshare -Upf --map-auto --mount-proc -- "$sh_file" | |
| fi | |
| integer -a fd | |
| { | |
| p 0 | p 1 | p 2 | { exec {fd}>&-; fd=1; p 3; } | |
| } {fd}>&1 | sort -unt : -k 1,1 | |
| } | |
| m | |
| # vim: set ft=bash fenc=utf-8 ff=unix ts=4 sw=4 noet : |
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