build: remove generated artifacts and unsafe scripts

run.sh

@@ -1,8 +1,35 @@
 #!/bin/sh
 
+set -eu
+
 cd "$(dirname "$0")"
-pkill strans
-sleep 1
+
+strans_pid=
+xim_pid=
+
+cleanup()
+{
+	trap - 0 1 2 15
+	if test -n "$xim_pid"; then
+		kill "$xim_pid" 2>/dev/null || true
+		wait "$xim_pid" 2>/dev/null || true
+	fi
+	if test -n "$strans_pid"; then
+		kill "$strans_pid" 2>/dev/null || true
+		wait "$strans_pid" 2>/dev/null || true
+	fi
+}
+
+trap cleanup 0 1 2 15
+
 ./strans map font &
+strans_pid=$!
 sleep 1
+kill -0 "$strans_pid"
+
 xim/strans-xim &
+xim_pid=$!
+
+while kill -0 "$strans_pid" 2>/dev/null && kill -0 "$xim_pid" 2>/dev/null; do
+	sleep 1
+done