path: root/testing/apt-dater-host/initial-support-for-alpine.patch

From 05dde83e45d64a82b89e5c10b0f74b28f424379a Mon Sep 17 00:00:00 2001
From: Henrik Riomar <henrik.riomar@gmail.com>
Date: Sun, 10 Jul 2016 13:44:15 +0200
Subject: [PATCH] initial support for Alpine Linux (apk)

Note that Alpine host code is not implemented in Perl as that is not
present on an Alpine Linux system by default.

Implements ADP 0.6

---
This patch is backported from upstream.
---
 apk/Makefile               |   9 ++
 apk/apt-dater-host         | 212 +++++++++++++++++++++++++++++++++++++++++++++
 apk/apt-dater-host-sudoers |   9 ++
 3 files changed, 230 insertions(+)
 create mode 100644 apk/Makefile
 create mode 100755 apk/apt-dater-host
 create mode 100644 apk/apt-dater-host-sudoers

diff --git a/apk/Makefile b/apk/Makefile
new file mode 100644
index 0000000..227f366
--- /dev/null
+++ b/apk/Makefile
@@ -0,0 +1,9 @@
+clean:
+
+install:
+	install -D -m0755 apt-dater-host \
+		$(DESTDIR)/usr/bin/apt-dater-host
+
+	install -m0750 -d $(DESTDIR)/etc/sudoers.d
+	install -m0640 apt-dater-host-sudoers \
+		$(DESTDIR)/etc/sudoers.d/apt-dater-host
diff --git a/apk/apt-dater-host b/apk/apt-dater-host
new file mode 100755
index 0000000..a5862ae
--- /dev/null
+++ b/apk/apt-dater-host
@@ -0,0 +1,212 @@
+#!/bin/sh
+
+# apt-dater - terminal-based remote package update manager
+#
+# Implementation of the protocol described in
+#   https://github.com/DE-IBH/apt-dater-host/blob/master/doc/ADP-0.6
+# using Busybox ash, awk and sed for use with Alpine Linux
+#
+# Author:
+#   Henrik Riomar <henrik.riomar@gmail.com>
+#
+# Copyright Holder:
+#   2016 (C) Henrik Riomar
+#
+# License:
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this package; if not, write to the Free Software
+#   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+#
+
+ADP_VERSION="0.6"
+ROOT_CMD="sudo"
+APK_CMD="/sbin/apk"
+
+err=255 # exit code returned by Perl from die()
+
+# LSBREL: ${Distri}|{Version}|${Codename}
+get_lsbrel()
+{
+	name=$(awk -F= '/^ID/ {print $NF}' /etc/os-release)
+	version=$(awk -F= '/^VERSION_ID/ {print $NF}' /etc/os-release)
+	echo "LSBREL: ${name}|${version}|"
+}
+
+# PRL: ${URI}
+get_prl()
+{
+	sed -n 's/^http/PRL: http/p' /etc/apk/repositories
+}
+
+# check if a pkg is held back
+is_held()
+{
+	grep -E -q ^$1\= /etc/apk/world
+}
+
+# check if $1 > $2
+newer_then()
+{
+	[ x"$($APK_CMD version -t $1 $2)" = x">" ] && return 0
+
+	return 1
+}
+
+# STATUS: ${Package}|${InstVersion}|${Status}...
+get_pkg_stat()
+{
+	tmp=$(mktemp)
+	$APK_CMD version -v | grep -v "^Installed:" > $tmp
+	$APK_CMD info | while read -r pkg
+	do
+		line=$(grep -E "^${pkg}-[0-9]" $tmp)
+		new_ver=$(echo $line | awk '{print $NF}')
+		cur_ver=$(echo $line | awk '{print $1}' | sed "s/$pkg-//")
+		if [ x"$new_ver" = x"$cur_ver" ]; then
+			echo "STATUS: $pkg|$cur_ver|i"
+		elif is_held $pkg; then
+			echo "STATUS: $pkg|$cur_ver|h"
+		elif [ x"$new_ver" = x"?" ]; then
+			echo "STATUS: $pkg|$cur_ver|x"
+		elif newer_then $new_ver $cur_ver; then
+			echo "STATUS: $pkg|$cur_ver|u=$new_ver"
+		else
+			# newer installed ($cur_ver) than available,
+			# ADP 0.6 does not describe this case
+			# x should be suitable for now.
+			echo "STATUS: $pkg|$cur_ver|x"
+		fi
+	done
+	rm $tmp
+}
+
+# VIRT: ${Name}
+get_virt()
+{
+	virt=$(dmesg | awk '/Hypervisor detected:/ {print $NF}')
+	if [ -n "$virt" ]; then
+		echo "VIRT: $virt"
+	else
+		echo "VIRT: Unknown"
+	fi
+}
+
+# UNAME: ${KERNEL-NAME}|${MACHINE}
+get_uname()
+{
+	echo "UNAME: $(uname -s)|$(uname -m)"
+}
+
+# KERNELINFO: ${Code} ${Release}
+get_kern()
+{
+	# 0 - latest running
+	# 1 - reboot
+	# 9 - Unknown
+	running=$(uname -r)
+	flavor=$(uname -r | awk -F- '{print $NF}')
+	vmlinuz="/boot/vmlinuz-$flavor"
+	if [ -r $vmlinuz ]; then
+		installed=$($APK_CMD info --who-owns $vmlinuz | grep -E -o "[0-9]+.[0-9]+.[0-9]+-r[0-9]")
+		with_r=$(echo $running | sed -e "s/[0-9]-${flavor}$/r&/g" | sed "s/-${flavor}//")
+		if [ x"$($APK_CMD version -t $with_r $installed)" = x'=' ]; then
+			echo "KERNELINFO: 0 $running"
+		else
+			echo "KERNELINFO: 1 $running"
+		fi
+	else
+		echo "KERNELINFO: 9 $running"
+	fi
+
+}
+
+# FORBID: ${Operations}
+check_forbid()
+{
+	echo "FORBID: 0"
+}
+
+#  ADPROTO: ${ProtoVersion}
+say_hi()
+{
+	echo "ADPROTO: $ADP_VERSION"
+}
+
+do_status()
+{
+	get_lsbrel
+	get_prl
+	get_virt
+	get_uname
+	check_forbid
+	get_pkg_stat
+	get_kern
+}
+
+run_as_root()
+{
+	err_str="ADPERR:"
+	interactive=$1
+	[ $interactive -eq 1 ] && err_str="ERROR:"
+	shift
+
+	proxy="/etc/profile.d/proxy.sh"
+	[ -r $proxy ] && source $proxy
+
+	cmd="$ROOT_CMD $*"
+	$cmd
+	ret=$?
+	if [ $ret -ne 0 ]; then
+		echo "$err_str \"$cmd\" returned $ret"
+		exit $err
+	fi
+}
+
+
+if [ -z "$1" ]; then
+	echo "Don't call this script directly!"
+	exit $err
+fi
+
+case "$1" in
+	refresh)
+		say_hi
+		run_as_root 0 $APK_CMD update
+		do_status
+		;;
+
+	status)
+		say_hi
+		do_status
+		;;
+
+	upgrade)
+		run_as_root 1 $APK_CMD upgrade
+		;;
+
+	install)
+		shift
+		echo "Installing PKG: $*"
+		run_as_root 1 $APK_CMD add $*
+		;;
+
+	kernel)
+		say_hi
+		get_kern
+		;;
+
+	*)
+		echo Invalid command \'$1\'\!
+		exit $err
+		;;
+esac
diff --git a/apk/apt-dater-host-sudoers b/apk/apt-dater-host-sudoers
new file mode 100644
index 0000000..6fc868c
--- /dev/null
+++ b/apk/apt-dater-host-sudoers
@@ -0,0 +1,9 @@
+# apt-dater-host sudoers.d config file
+# ------------------------------------
+#
+
+# Keep http_proxy environment variable
+#Defaults	env_keep += http_proxy
+
+# Allow members of group adm to execute the apk command
+%adm		ALL=NOPASSWD: /sbin/apk