From 867df0cf3d06a789a92c0c7a012393a5e1a89369 Mon Sep 17 00:00:00 2001
From: Robert Alessi <alessi@robertalessi.net>
Date: Sun, 15 Dec 2019 15:22:34 +0100
Subject: optionally use rsnapshot to have incremental backups

---
 PKGBUILD      |  9 +++++----
 x200-my.confd | 38 ++++++++++++++++++++++++++++++++------
 x200-my.initd | 50 ++++++++++++++++++++++++++------------------------
 3 files changed, 63 insertions(+), 34 deletions(-)

diff --git a/PKGBUILD b/PKGBUILD
index 8e64cb2..bc17e95 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -1,21 +1,22 @@
 # Maintainer: Robert Alessi <alessi@robertalessi.net>
 
 pkgname=x200-my
-pkgver=0.3.1
+pkgver=0.4
 pkgrel=1
 pkgdesc="Service to remove whining noise from Thinkpads X200, power off the wifi on shutdown and optionally backup directories."
 arch=(any)
 license=(GPL2)
 url="http://git.robertalessi.net/x200-my"
-depends=('sysvinit' 'networkmanager' 'acpid' 'intel-gpu-tools')
+depends=('sysvinit' 'networkmanager' 'acpid' 'intel-gpu-tools' 'rsync')
+optdepends=('rsnapshot: for incremental backups')
 install=x200-my.install
 source=('x200-my.initd'
         'x200-my.confd'
 	'x200-my-lid.sh'
 	'x200-my-sleep.sh'
 	'x200-my.sh')
-sha512sums=('96579d18e8639da441b2f0104e453f2ffd34a1c14c77ad08709fc090b168d0030f5074d8c54f116739a4f421286c5d2b64181c66fabd2eee91c371d8aa856395'
-            'd181ca58ffed55d7d35bd78d2ace09e6c459938f7f7c6cb10feff56de23861feef8b859fde9bb895021efb840a1fe0d3aef7861c7881bb9a793cf9491a2fd17d'
+sha512sums=('40d74cc2bce559cc2a08ebcd707279e148d802a5cdeb675cfb5c3abfed453378028a9f78b1be31269d908ad6aacaaaf53b48b13f97d019cdb73156ff92f507b5'
+            'bf6513589b39daad03e4365e61f2026a4cb1801af9d061f38f502c4caa5732d03e529d43f2ec87a4ded952b6a299fdec1c18f302162b0dd28c540299be8987cf'
             '0dc141f1a26f2cd570d49a05bcc9496ba4c49fde39afad46f5a0783e83c07ec810ca81454a28c3241bcffc62ac31274e2a8d726bbd3c1e91d8cf5315b783c3f8'
             '610564aa853c5dbc4e370ec2a4d3b5590e53ed235a1960927c0986a31f6c77d135086b1f5752b56fd511ea4a0294082fc7e98ee2fa7b69b37776a59f45c2ec34'
             'cb765075f02b5cd16bcfc31571cf7c31ddcd74ff3aa832df1acd96bd8feb62855c0cf90c31c3e0028180765a51eafc5c74fb1f0406dd9172bdc0f5ec02b39f8c')
diff --git a/x200-my.confd b/x200-my.confd
index bc0024d..35d26bd 100644
--- a/x200-my.confd
+++ b/x200-my.confd
@@ -4,15 +4,32 @@
 
 PWMFREQ_RATE="0x8bb7b16dc5b6a"
 
-#
-# Backup options
-#
-# Activate autobackup on shutdown (true/false)
+##################
+# Backup options #
+##################
+
+# Activate autobackup on shutdown (true/false)?
 conf_autobackup="false"
-# Path to backup directory:
-conf_backup_path="/mnt/disk"
+# Use rsnaphot (true/false)? 'false' means 'use rsync':
+use_rsnapshot="false"
+
+############################
+# rsync/rsnapshot settings #
+############################
+
+# Path to backup directory (note that rsnapshot additionally needs
+# this to be specified as 'snapshot_root' in /etc/rsnapshot.conf):
+conf_backup_path="/mnt/disk/snapshots"
+
+# The following option applies both to rsync and rsnapshot.
 # Control file.  This (empty) file must exist in the backup directory:
 conf_control_file="dobackup"
+
+######################
+# rsync-only setting #
+######################
+
+# rsync only option:
 # Directories to backup:
 conf_backup_dirs=(
     "/etc"
@@ -20,3 +37,12 @@ conf_backup_dirs=(
     "/usr/local"
     "/home"
 )
+
+##########################
+# rsnapshot-only setting #
+##########################
+
+# Use the following line to have specific arguments passed to
+# rsnapshot such as 'daily' or the like.  By default, x200-my uses
+# 'alpha', which is already defined in /etc/rsnapshot.conf:
+rsnapshot_args="alpha"
diff --git a/x200-my.initd b/x200-my.initd
index b026b5b..de88ff0 100644
--- a/x200-my.initd
+++ b/x200-my.initd
@@ -14,31 +14,46 @@ extra_started_commands="initbackup"
 autobackup="${conf_autobackup}"
 backup_path="${conf_backup_path}"
 control_file="${conf_control_file}"
-backup_cmd="/usr/bin/rsync"
-backup_args="-aAX --relative --delete --quiet"
+if [ $use_rsnapshot = "true" ]
+then
+    backup_cmd="/usr/bin/rsnapshot"
+    backup_args="${rsnapshot_args}"
+else
+    backup_cmd="/usr/bin/rsync"
+    backup_args="-aAX --relative --delete --quiet"
+fi
 
 do_listofpackages() {
     /usr/bin/pacman -Qqetn > "$backup_path"/pkglist.txt
     /usr/bin/pacman -Qqem > "$backup_path"/foreignpkglist.txt
 }
 
-initbackup() {
+do_backup () {
     if [ $autobackup = "true" ]
     then
 	if [ -e "$backup_path"/"$control_file" ]
 	then
 	    do_listofpackages
-	    for dir in "${conf_backup_dirs[@]}"
-	    do
-		if [ -d "$dir" ]
-		then
-		    $backup_cmd $backup_args "$dir" "$backup_path"
-		fi
-	    done
+	    if [ $use_rsnapshot = "true" ]
+	    then
+		$backup_cmd $backup_args
+	    else
+		for dir in "${conf_backup_dirs[@]}"
+		do
+		    if [ -d "$dir" ]
+		    then
+			$backup_cmd $backup_args "$dir" "$backup_path"
+		    fi
+		done
+	    fi
 	fi
     fi
 }
 
+initbackup() {
+    do_backup
+}
+
 start() {
     if [ "${RC_CMD}" = "restart" ];
     then
@@ -50,18 +65,5 @@ start() {
 
 stop() {
     /usr/bin/nmcli radio all off
-    if [ $autobackup = "true" ]
-    then
-	if [ -e "$backup_path"/"$control_file" ]
-	then
-	    do_listofpackages
-	    for dir in "${conf_backup_dirs[@]}"
-	    do
-		if [ -d "$dir" ]
-		then
-		    $backup_cmd $backup_args "$dir" "$backup_path"
-		fi
-	    done
-	fi
-    fi
+    do_backup
 }
-- 
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