blob: 6c3eff75cbca3c900a323bb8d88d94c981a68c06 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
#! /bin/bash
#
# wrappercheck.sh background command args ... -- command args ...
#
# Wrapper script which runs one command in the background and the
# other in the foreground. Once that second command completes, the
# first one is send a SIGINT+SIGTERM, then a SIGKILL until it terminates.
#
# Overall return code of this script is the return code of the
# foreground command or, if that is 0, the background command.
set -e
set -x
PIDS=
trap "kill -TERM $PIDS" TERM
trap "kill -INT $PIDS" INT
DAEMON_LOG=
declare -a BACKGROUND
declare -a ENV
# parse parameters
while [ $# -gt 1 ] && [ "$1" != "--" ] ; do
case "$1" in
--daemon-log)
shift
DAEMON_LOG="$1"
;;
*=*)
ENV[${#ENV[*]}]="$1"
;;
*)
break
;;
esac
shift
done
# gather command and its parameters
while [ $# -gt 1 ] && [ "$1" != "--" ] ; do
BACKGROUND[${#BACKGROUND[*]}]="$1"
shift
done
shift
( set +x; echo "*** starting ${BACKGROUND[0]} as background daemon, output to ${DAEMON_LOG:-stdout}" )
( set -x; if [ "$DAEMON_LOG" ]; then exec >>"$DAEMON_LOG" 2>&1; fi; exec env "${ENV[@]}" "${BACKGROUND[@]}" ) &
BACKGROUND_PID=$!
PIDS+="$BACKGROUND_PID"
set +e
(set -x; "$@")
RET=$?
set -e
( set +x; echo "*** killing and waiting for ${BACKGROUND[0]}" )
kill -INT $BACKGROUND_PID && kill -TERM $BACKGROUND_PID || true
( sleep 60; kill -KILL $BACKGROUND_PID ) &
KILL_PID=$!
set +e
wait $BACKGROUND_PID
msg=$(kill -KILL $KILL_PID 2>&1)
SUBRET=$?
if echo "$msg" | grep -q 'No such process'; then
# Consider this a success.
SUBRET=0
else
echo "$msg"
fi
set -e
if [ $RET = 0 ]; then
RET=$SUBRET
fi
exit $RET
|
