setup-alpine: add setup-devd script

5 files changed, 135 insertions, 1 deletions

diff --git a/.gitignore b/.gitignore
index 4678b4a..d2aef61 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,6 +11,7 @@ setup-apkrepos
 setup-bootable
 setup-cryptswap
 setup-desktop
+setup-devd
 setup-disk
 setup-dns
 setup-gparted-desktop
diff --git a/Makefile b/Makefile
index bf77f27..8c4c66f 100644
--- a/Makefile
+++ b/Makefile
@@ -12,6 +12,7 @@ SBIN_FILES	:= copy-modloop\
 		setup-apkcache\
 		setup-apkrepos\
 		setup-bootable\
+		setup-devd\
 		setup-disk\
 		setup-dns\
 		setup-hostname\
diff --git a/setup-alpine.in b/setup-alpine.in
index e6a1104..356bb4e 100644
--- a/setup-alpine.in
+++ b/setup-alpine.in
@@ -77,6 +77,9 @@ if [ -n "$CREATEANSWERFILE" ]; then
 		# Set hostname to alpine-test
 		HOSTNAMEOPTS="-n alpine-test"
 
+		# Set device manager to mdev
+		DEVDOPTS="mdev"
+
 		# Contents of /etc/network/interfaces
 		INTERFACESOPTS="auto lo
 		iface lo inet loopback
@@ -126,6 +129,7 @@ fi
 if [ "$rc_sys" != LXC ]; then
 	$PREFIX/sbin/setup-keymap ${KEYMAPOPTS}
 	$PREFIX/sbin/setup-hostname ${HOSTNAMEOPTS}
+	$PREFIX/sbin/setupd-devd -C mdev # just to bootstrap
 fi
 
 [ -z "$SSH_CONNECTION" ] && rst_if=1
@@ -193,6 +197,11 @@ fi
 
 $PREFIX/sbin/setup-apkrepos ${APKREPOSOPTS}
 
+# Now that network and apk are operational we can install another device manager
+if [ "$rc_sys" != LXC ] && [ -n "$DEVDOPTS" -a "$DEVDOPTS" != mdev ]; then
+	$PREFIX/sbin/setup-devd ${DEVDOPTS}
+fi
+
 # lets stop here if in "quick mode"
 if [ "$quick" = 1 ]; then
 	exit 0
diff --git a/setup-devd.in b/setup-devd.in
new file mode 100644
index 0000000..8c61243
--- /dev/null
+++ b/setup-devd.in
@@ -0,0 +1,123 @@
+#!/bin/sh -e
+
+PREFIX=@PREFIX@
+
+. "$PREFIX/lib/libalpine.sh"
+
+prog="${0##*/}"
+
+usage () {
+	cat <<EOF
+$prog: usage: setup-devd [ -h ] [ -C ] [ mdev | mdevd | udev ]
+
+Set up the device manager.
+
+Options:
+  -h  Show this help
+  -C  Perform a coldplug after starting the device manager.
+
+The optional argument tells setup-devd what device manager to use.
+mdev (from busybox) is the default.
+mdevd is standalone, compatible with mdev, more efficient.
+udev (from eudev) is the complex, full-featured one.
+Without an argument, the choice is prompted interactively.
+
+EOF
+	exit 1
+}
+
+disable_mdev () {
+	if rc-service -e mdev ; then
+		rc-service -s mdev-init stop
+		rc-service -s mdev stop
+		rc-update delete mdev-init sysinit || :
+		rc-update delete mdev sysinit || :
+	fi
+}
+
+enable_mdev () {
+	apk add --quiet mdev-openrc
+	rc-update add mdev sysinit
+	rc-update add mdev-init sysinit
+	rc-service mdev start
+	if "$1" ; then
+		rc-service mdev-init start
+	fi
+}
+
+disable_mdevd () {
+	if rc-service -e mdevd ; then
+		rc-service -s mdevd stop
+		rc-update delete mdevd-init sysinit 2>/dev/null || :
+		rc-update delete mdevd sysinit 2>/dev/null || :
+	fi
+}
+
+enable_mdevd () {
+	apk add --quiet mdevd mdevd-openrc
+	rc-update add mdevd sysinit
+	rc-update add mdevd-init sysinit
+	rc-service mdevd start
+	if "$1" ; then
+		rc-service mdevd-init start
+	fi
+}
+
+disable_udev () {
+	if rc-service -e udev ; then
+		rc-service -s udev stop
+		rc-update delete udev-postmount default 2>/dev/null || :
+		rc-update delete udev-settle sysinit 2>/dev/null || :
+		rc-update delete udev-trigger sysinit 2>/dev/null || :
+		rc-update delete udev sysinit 2>/dev/null || :
+	fi
+}
+
+enable_udev () {
+	apk add --quiet eudev udev-init-scripts udev-init-scripts-openrc
+	rc-update add udev sysinit
+	rc-update add udev-trigger sysinit
+	rc-update add udev-settle sysinit
+	rc-update add udev-postmount default
+	rc-service udev start
+	if "$1" ; then
+		rc-service udev-trigger start
+		rc-service udev-settle start
+		rc-service udev-postmount start
+	fi
+}
+
+coldplug=false
+while getopts "hC" opt ; do
+	case $opt in
+		h) usage ;;
+		C) coldplug=true ;;
+		'?') usage ;;
+	esac
+done
+shift $((OPTIND - 1))
+devd="$1"
+if test -n "$devd" ; then
+	interactive=false
+else
+	interactive=true
+fi
+
+until isin "$devd" mdev mdevd udev ; do
+	ask "What program should manage /dev? [mdev|mdevd|udev]" mdev
+	devd="$resp"
+done
+
+if "$interactive" ; then
+	if ask_yesno "Scan the hardware to populate /dev? [y|n] (Say yes if you're running this script for the first time.)" n ; then
+		coldplug=true
+	else
+		coldplug=false
+	fi
+fi
+
+case "$devd" in
+	mdev)  disable_mdevd ; disable_udev ; enable_mdev $coldplug ;;
+	mdevd) disable_mdev ; disable_udev ; enable_mdevd $coldplug ;;
+	udev)  disable_mdev ; disable_mdevd ; enable_udev $coldplug ;;
+esac
diff --git a/setup-xorg-base.in b/setup-xorg-base.in
index e3a7912..b1de8fe 100644
--- a/setup-xorg-base.in
+++ b/setup-xorg-base.in
@@ -13,4 +13,4 @@ fi
 
 apk add xorg-server xf86-input-libinput eudev mesa "$@"
 
-setup-udev
+setup-devd udev