[distorted-bits] / do-slaves

#! /bin/sh
set -e

## Parse the command line.
case "$#" in
  0 | 1)
    echo >&2 "Usage: $0 COMMAND SLAVE|:SET ..."
    exit 1
    ;;
esac
command=$1; shift

## Expand slaves into a big list.
slaves=$(expand-list /etc/slaves "$@")

## Now do the stuff.
for i in $slaves; do
  { { { echo "starting..."
	set +e; ssh "$i" "$command" 3>&-; rc=$?; set -e
	echo "done (rc = $rc)"; } >&3; } 2>&1 |
    while IFS= read line; do echo "!!! $line"; done; } 3>&1 |
  while IFS= read line; do echo "$i: $line"; done &
done
wait
Commit	Line	Data
f1b539a1 MW	1	#! /bin/sh
	2	set -e
	3
	4	## Parse the command line.
	5	case "$#" in
	6	0 \| 1)
	7	echo >&2 "Usage: $0 COMMAND SLAVE\|:SET ..."
	8	exit 1
	9	;;
	10	esac
	11	command=$1; shift
	12
	13	## Expand slaves into a big list.
	14	slaves=$(expand-list /etc/slaves "$@")
	15
	16	## Now do the stuff.
	17	for i in $slaves; do
	18	{ { { echo "starting..."
	19	set +e; ssh "$i" "$command" 3>&-; rc=$?; set -e
b3972a88 MW	20	echo "done (rc = $rc)"; } >&3; } 2>&1 \|
	21	while IFS= read line; do echo "!!! $line"; done; } 3>&1 \|
	22	while IFS= read line; do echo "$i: $line"; done &
f1b539a1 MW	23	done
f1b539a1 MW	24	wait