From d2e712f832cc81db8e35c964991ea3bab7a4b0f0 Mon Sep 17 00:00:00 2001
From: William Hubbs <williamh@gentoo.org>
Date: Sat, 28 Dec 2013 21:56:12 -0600
Subject: Move code from dev-root-link helper to udev init script

This code should only be run by the udev init script, so let's put it
inside the script instead of making it a helper.

X-Gentoo-Bug: 495086
X-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=495086
---
 Makefile                 |  1 -
 helpers/dev-root-link.sh | 22 ----------------------
 init.d/udev              | 19 ++++++++++++++++++-
 3 files changed, 18 insertions(+), 24 deletions(-)
 delete mode 100644 helpers/dev-root-link.sh

diff --git a/Makefile b/Makefile
index d631832..b1739ed 100644
--- a/Makefile
+++ b/Makefile
@@ -9,7 +9,6 @@ CONFD ?= $(SYSCONFDIR)/conf.d
 INITD ?= $(SYSCONFDIR)/init.d
 
 HELPERS = \
-	helpers/dev-root-link.sh \
 	helpers/net.sh
 
 all:
diff --git a/helpers/dev-root-link.sh b/helpers/dev-root-link.sh
deleted file mode 100644
index b92c47e..0000000
--- a/helpers/dev-root-link.sh
+++ /dev/null
@@ -1,22 +0,0 @@
-#!/bin/sh -e
-#
-# dev-root-link.sh: create /dev/root symlink
-#
-# Distributed under the terms of the GNU General Public License v2
-#
-# This is here because some software expects /dev/root to exist.
-# For more information, see this bug:
-# https://bugs.gentoo.org/show_bug.cgi?id=438380
-
-RULESDIR=/run/udev/rules.d
-
-[ -d $RULESDIR ] || mkdir -p $RULESDIR
-
-eval $(udevadm info --export --export-prefix=ROOT_ --device-id-of-file=/ || true)
-
-[ "$ROOT_MAJOR" -a "$ROOT_MINOR" ] || exit 0
-
-# btrfs filesystems have bogus major/minor numbers
-[ "$ROOT_MAJOR" != 0 ] || exit 0
-
-echo 'ACTION=="add|change", SUBSYSTEM=="block", ENV{MAJOR}=="'$ROOT_MAJOR'", ENV{MINOR}=="'$ROOT_MINOR'", SYMLINK+="root"' > $RULESDIR/61-dev-root-link.rules
diff --git a/init.d/udev b/init.d/udev
index 0e9abfe..c861338 100644
--- a/init.d/udev
+++ b/init.d/udev
@@ -93,11 +93,28 @@ start_udevmonitor()
 		--background --exec /bin/udevadm -- monitor ${udev_monitor_opts}
 }
 
+# This is here because some software expects /dev/root to exist.
+# For more information, see this bug:
+# https://bugs.gentoo.org/show_bug.cgi?id=438380
+dev_root_link()
+{
+	local RULESDIR=/run/udev/rules.d
+	[ -d $RULESDIR ] || mkdir -p $RULESDIR
+	eval $(udevadm info --export --export-prefix=ROOT_ --device-id-of-file=/ ||
+		true)
+	[ "$ROOT_MAJOR" -a "$ROOT_MINOR" ] || return 0
+
+	# btrfs filesystems have bogus major/minor numbers
+	[ "$ROOT_MAJOR" != 0 ] || return 0
+
+	echo 'ACTION=="add|change", SUBSYSTEM=="block", ENV{MAJOR}=="'$ROOT_MAJOR'", ENV{MINOR}=="'$ROOT_MINOR'", SYMLINK+="root"' > $RULESDIR/61-dev-root-link.rules
+}
+
 populate_dev()
 {
 	if yesno ${rc_dev_root_symlink:-yes}; then
 		ebegin "Generating a rule to create a /dev/root symlink"
-		/lib/udev/dev-root-link.sh
+		dev_root_link
 		eend $?
 	fi
 
-- 
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