eudev: rescan devices on restart

Udev is initially ran unsupervised then restarted by runit. Events that
happen during restart may leave devices with incorrect permissions. This
waits for the socket to become available then triggers a rescan.

void-linux/void-runit#135

Author: eholzbach

srcpkgs/eudev/files/udevd/run

@@ -1,4 +1,16 @@
 #!/bin/sh
 exec 2>&1
 udevadm control --exit
+
+(
+	i=0
+	while [ ! -S /run/udev/control ] && [ "$i" -lt 50 ]; do
+		sleep 1
+		i=$((i + 1))
+	done
+	udevadm trigger --action=add --type=subsystems
+	udevadm trigger --action=add --type=devices
+	udevadm settle
+) &
+
 exec udevd

srcpkgs/eudev/template

@@ -4,7 +4,7 @@ _UDEV_VERSION="251" # compatible udev version provided
 
 pkgname=eudev
 version=3.2.14
-revision=2
+revision=3
 build_style=gnu-configure
 configure_args="--enable-hwdb --enable-manpages"
 hostmakedepends="pkg-config gperf"