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preserve existing environment variable #4

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preserve existing environment variable #4

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10 changes: 9 additions & 1 deletion wait-for
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Original file line number Diff line number Diff line change
Expand Up @@ -20,12 +20,20 @@ USAGE
}

wait_for() {
_HOST=$HOST
_PORT=$PORT
for i in `seq $TIMEOUT` ; do
nc -z "$HOST" "$PORT" > /dev/null 2>&1

result=$?
if [ $result -eq 0 ] ; then
if [ $# -gt 0 ] ; then
unset HOST
unset PORT
HOST=$_HOST
PORT=$_PORT
unset _HOST
unset _PORT
exec "$@"
fi
exit 0
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11 changes: 10 additions & 1 deletion wait-for.bats
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@

@test "google should be immediately found" {
run ./wait-for google.com:80 -- echo 'success'

[ "$output" = "success" ]
}

Expand All @@ -12,3 +12,12 @@
[ "$status" -ne 0 ]
[ "$output" != "success" ]
}

@test "preserve existing environment variable" {
HOST=myweb.com
PORT=8080
run ./wait-for google.com:80 -- echo 'success'

[ "$(echo $HOST)" = 'myweb.com' ]
[ "$(echo $PORT)" = '8080' ]
}