From: Darik Horn <dajhorn@vanadac.com>
Date: Sun, 4 Dec 2011 19:10:46 +0000 (-0600)
Subject: Support path_id changes in udev 174.
X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=commitdiff_plain;ds=sidebyside;h=9c8254f6f95b2b08e2031b2682a632e0df45cefb;hp=590338f63ee0db6f1fc7e6b5b23744d3944777b2;p=zfs.git

Support path_id changes in udev 174.

The /lib/udev/path_id helper became a builtin command in the udev 174
release, so test whether path_id is external in the zpool_id script.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes: #429
---

diff --git a/cmd/zpool_id/zpool_id b/cmd/zpool_id/zpool_id
index 9d2a845..a67beac 100755
--- a/cmd/zpool_id/zpool_id
+++ b/cmd/zpool_id/zpool_id
@@ -1,9 +1,17 @@
 #!/bin/bash
 
 CONFIG=${CONFIG:-/etc/zfs/zdev.conf}
-PATH_ID=${PATH_ID:-/lib/udev/path_id}
 AWK=${AWK:-/usr/bin/awk}
 
+if [ -z "${PATH_ID}" ]; then
+	# The path_id helper became a builtin command in udev 174.
+	if [ -x '/lib/udev/path_id' ]; then
+		PATH_ID='/lib/udev/path_id'
+	else
+		PATH_ID='udevadm test-builtin path_id'
+	fi
+fi
+
 die() {
 	echo "Error: $*"
 	exit 1