From bb7ab9841c1a89776e94c82728fba3f1a7c675d1 Mon Sep 17 00:00:00 2001
From: Ben Clark <ben@benjyc.uk>
Date: Thu, 3 Aug 2017 22:31:59 +0100
Subject: [PATCH] Add backup and restore scripts for Linux/MacOS

Signed-off-by: Ben Clark <ben@benjyc.uk>
---
 .../openhab/src/main/resources/bin/backup     | 149 ++++++++++++++++++
 .../src/main/resources/bin/oh2_dir_layout     |   5 +
 .../src/main/resources/bin/oh2_dir_layout.bat |   5 +
 .../openhab/src/main/resources/bin/restore    | 133 ++++++++++++++++
 4 files changed, 292 insertions(+)
 create mode 100755 distributions/openhab/src/main/resources/bin/backup
 create mode 100755 distributions/openhab/src/main/resources/bin/restore

diff --git a/distributions/openhab/src/main/resources/bin/backup b/distributions/openhab/src/main/resources/bin/backup
new file mode 100755
index 0000000000..b92836e7d0
--- /dev/null
+++ b/distributions/openhab/src/main/resources/bin/backup
@@ -0,0 +1,149 @@
+#!/bin/sh
+
+setup(){
+  ## Keep the script general by allowing the user to provide the version number to download.
+  if [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
+    echo "Usage: ./runtime/bin/backup [filename]"
+    echo ""
+    echo "  e.g. ./runtime/bin/backup               << Makes a file with a timed filename"
+    echo "       ./runtime/bin/backup myBackup.zip  << Makes a file called myBackup.zip"
+    echo ""
+    echo "Use this script to backup your openHAB configuration, you can use the 'restore' script"
+    echo "from any machine to transfer your configuration across to another instance."
+    echo ""
+    echo "You can place this script anywhere, but you should run it from"
+    echo "inside the openHAB root folder if you do not have OPENHAB_* directories set."
+    echo ""
+    exit 0
+  fi
+
+  ## Ask to run as root to prevent us from running sudo in this script.
+  if [ "$(id -u)" -ne 0 ]; then
+    echo "Please run this script as root! (e.g. use sudo)" >&2
+    exit 1
+  fi
+
+  command -v zip >/dev/null 2>&1 || {
+    echo "'zip' program was not found, please install it first." >&2
+    exit 1
+  }
+
+  ## Set path variables
+  if [ -r /etc/profile.d/openhab2.sh ]; then
+    . /etc/profile.d/openhab2.sh
+  elif [ -r /etc/default/openhab2 ]; then
+    . /etc/default/openhab2
+  fi
+
+  WorkingDir=$(pwd)
+
+  if [ -z "$OPENHAB_CONF" ];       then OPENHAB_CONF="$WorkingDir/conf"; fi
+  if [ -z "$OPENHAB_USERDATA" ];   then OPENHAB_USERDATA="$WorkingDir/userdata"; fi
+  if [ -z "$OPENHAB_BACKUPS" ];     then OPENHAB_BACKUPS="$WorkingDir/backups"; fi
+
+  echo "Using '$OPENHAB_CONF' as conf folder..."
+  echo "Using '$OPENHAB_USERDATA' as userdata folder..."
+
+  timestamp=$(date +"%y_%m_%d-%H_%M_%S")
+  ## Set the filename
+  if [ -z "$1" ]; then
+    echo "Using '$OPENHAB_BACKUPS' as backup folder..."
+    OutputFile="$OPENHAB_BACKUPS/openhab2-backup-$timestamp.zip"
+  else
+    OutputFile="$1"
+  fi
+
+  ## Check two of the standard openHAB folders to make sure we're updating the right thing.
+  if [ ! -d "$OPENHAB_USERDATA" ] || [ ! -d "$OPENHAB_CONF" ]; then
+    echo "Configuration paths are invalid..." >&2
+    echo "The script must be called from openHAB's root directory." >&2
+    echo "Alternatively, set OPENHAB_USERDATA and OPENHAB_CONF environment variables." >&2
+    exit 1
+  fi
+
+  ## Find the group and user of the current openHAB folders.
+  OHUser=$(ls -ld "$OPENHAB_USERDATA" | awk '{print $3}')
+  OHGroup=$(ls -ld "$OPENHAB_USERDATA" | awk '{print $4}')
+
+  CurrentVersion="$(awk '/openhab-distro/{print $3}' "$OPENHAB_USERDATA/etc/version.properties")"
+
+  ## Store anything in temporary folders
+  TempDir="/tmp/openhab2/backup"
+  echo "Making Temporary Directory"
+  mkdir -p "$TempDir" || {
+    echo "Failed to make temporary directory: $TempDir" >&2
+    exit 1
+  }
+
+  ## Clear older stuff if it exists
+  rm -rf "${TempDir:?}/*"
+}
+
+echo "                                         "
+echo "#########################################"
+echo "       openHAB 2.x.x backup script       "
+echo "#########################################"
+echo "                                         "
+
+setup "$1"
+
+## Set backup properties file.
+{
+  echo "version=$CurrentVersion"
+  echo "timestamp=$timestamp"
+  echo "user=$OHUser"
+  echo "group=$OHGroup"
+} > "$TempDir/backup.properties"
+
+## Copy userdata and conf folders
+echo "Copying configuration to temporary folder..."
+mkdir -p "$TempDir/userdata"
+cp -ar "$OPENHAB_USERDATA/"*  "$TempDir/userdata"
+mkdir -p "$TempDir/conf"
+cp -ar "$OPENHAB_CONF/"*      "$TempDir/conf"
+
+## Remove non-transferable userdata files
+echo "Removing unnecessary files..."
+rm -rf "$TempDir/userdata/cache"
+rm -rf "$TempDir/userdata/tmp"
+rm -rf "$TempDir/userdata/etc/all.policy"
+rm -rf "$TempDir/userdata/etc/branding.properties"
+rm -rf "$TempDir/userdata/etc/branding-ssh.properties"
+rm -rf "$TempDir/userdata/etc/config.properties"
+rm -rf "$TempDir/userdata/etc/custom.properties"
+rm -rf "$TempDir/userdata/etc/version.properties"
+rm -rf "$TempDir/userdata/etc/distribution.info"
+rm -rf "$TempDir/userdata/etc/jre.properties"
+rm -rf "$TempDir/userdata/etc/profile.cfg"
+rm -rf "$TempDir/userdata/etc/startup.properties"
+rm -rf "$TempDir/userdata/etc/org.apache.karaf"*
+rm -rf "$TempDir/userdata/etc/org.ops4j.pax.url.mvn.cfg"
+
+## If the backup directory is inside userdata folder delete it
+## Mainly for apt/rpm automatic
+if [ "$OPENHAB_BACKUPS" = "$OPENHAB_USERDATA/backups" ]; then
+echo "Backup Directory is inside userdata, not including in this backup!"
+rm -rf "$TempDir/userdata/backups"
+fi
+
+echo "$OPENHAB_BACKUPS"
+echo "$OPENHAB_USERDATA/backups"
+
+## Create archive
+mkdir -p "$OPENHAB_BACKUPS"
+echo "Zipping folder..."
+
+## Jump into directory before making zip
+## Cleans file structure
+( cd "$TempDir" || exit
+  zip -qr "$OutputFile" . || {
+    echo "zip failed to store a backup."
+    exit 1
+  }
+) || exit 1
+
+echo "Removing temporary files..."
+rm -rf /tmp/openhab2
+
+echo "Success! Backup made in $OutputFile"
+echo ""
diff --git a/distributions/openhab/src/main/resources/bin/oh2_dir_layout b/distributions/openhab/src/main/resources/bin/oh2_dir_layout
index d4509e719d..2c9a5dd634 100644
--- a/distributions/openhab/src/main/resources/bin/oh2_dir_layout
+++ b/distributions/openhab/src/main/resources/bin/oh2_dir_layout
@@ -21,6 +21,11 @@ if [ -z ${OPENHAB_LOGDIR} ]; then
     export OPENHAB_LOGDIR="${OPENHAB_USERDATA}/logs"
 fi
 
+if [ -z ${OPENHAB_BACKUP} ]; then
+    export OPENHAB_BACKUPS="${OPENHAB_HOME}/backups"
+fi
+
+
 # Make sure the tmp folder exists as Karaf requires it
 if [ ! -d "${OPENHAB_USERDATA}/tmp" ]; then
     mkdir "${OPENHAB_USERDATA}/tmp"
diff --git a/distributions/openhab/src/main/resources/bin/oh2_dir_layout.bat b/distributions/openhab/src/main/resources/bin/oh2_dir_layout.bat
index 138a40fba8..ff7445674b 100644
--- a/distributions/openhab/src/main/resources/bin/oh2_dir_layout.bat
+++ b/distributions/openhab/src/main/resources/bin/oh2_dir_layout.bat
@@ -23,6 +23,11 @@ IF NOT [%OPENHAB_LOGDIR%] == [] GOTO :logs_set
 set OPENHAB_LOGDIR=%OPENHAB_USERDATA%\logs
 :logs_set
 
+:check_backups
+IF NOT [%OPENHAB_BACKUPS%] == [] GOTO :backups_set
+set OPENHAB_BACKUPS=%OPENHAB_HOME%\backups
+:backups_set
+
 rem Make sure the tmp folder exists as Karaf requires it
 IF NOT EXIST "%OPENHAB_USERDATA%\tmp" (
   mkdir "%OPENHAB_USERDATA%\tmp"
diff --git a/distributions/openhab/src/main/resources/bin/restore b/distributions/openhab/src/main/resources/bin/restore
new file mode 100755
index 0000000000..f8ce174faa
--- /dev/null
+++ b/distributions/openhab/src/main/resources/bin/restore
@@ -0,0 +1,133 @@
+#!/bin/sh
+
+setup(){
+  ## Keep the script general by allowing the user to provide the version number to download.
+  if [ -z "$1" ] || [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
+    echo "Usage: ./runtime/bin/restore filename"
+    echo ""
+    echo "  e.g. ./runtime/bin/restore myBackup.zip  << Restores config from myBackup.zip"
+    echo ""
+    echo "Use this script to restore an openHAB configuration that was previously made with"
+    echo "the openHAB 'backup' script."
+    echo ""
+    echo "You can place this script anywhere, but you should run it from"
+    echo "inside the openHAB root folder if you do not have OPENHAB_* directories set."
+    echo ""
+    exit 0
+  fi
+
+  ## Ask to run as root to prevent us from running sudo in this script.
+  if [ "$(id -u)" -ne 0 ]; then
+    echo "Please run this script as root! (e.g. use sudo)" >&2
+    exit 1
+  fi
+
+  command -v unzip >/dev/null 2>&1 || {
+    echo "'unzip' program was not found, please install it first." >&2
+    exit 1
+  }
+
+  ## Check to see if processes are running before updating
+  if [ ! -z "$(ps aux  | grep "openhab2.*java" | grep -v grep)" ]; then
+    echo "openHAB is running! Please stop the process before updating." >&2
+    exit 1
+  fi
+
+  ## Set path variables
+  if [ -r /etc/profile.d/openhab2.sh ]; then
+    . /etc/profile.d/openhab2.sh
+  elif [ -r /etc/default/openhab2 ]; then
+    . /etc/default/openhab2
+  fi
+  if [ -z "$OPENHAB_CONF" ];       then OPENHAB_CONF="./conf"; fi
+  if [ -z "$OPENHAB_USERDATA" ];   then OPENHAB_USERDATA="./userdata"; fi
+
+  echo "Using '$OPENHAB_CONF' as conf folder..."
+  echo "Using '$OPENHAB_USERDATA' as userdata folder..."
+
+  CurrentVersion="$(awk '/openhab-distro/{print $3}' "$OPENHAB_USERDATA/etc/version.properties")"
+
+  ## Store anything in temporary folders
+  TempDir="/tmp/openhab2/backup"
+  ## Clear older stuff if it exists
+  rm -rf "${TempDir:?}"
+  echo "Making Temporary Directory"
+  mkdir -p "$TempDir" || {
+    echo "Failed to make temporary directory: $TempDir" >&2
+    exit 1
+  }
+}
+
+echo "                                          "
+echo "##########################################"
+echo "       openHAB 2.x.x restore script       "
+echo "##########################################"
+echo "                                          "
+
+InputFile="$1"
+
+setup "$InputFile"
+
+## Extract zip file
+echo "Extracting zip file to temporary folder."
+
+unzip -oq "$InputFile" -d "$TempDir" || {
+  echo "Unable to unzip $InputFile, Aborting..." >&2
+  exit 1
+}
+
+## Check for backup properties list.
+if [ ! -f "$TempDir/backup.properties" ]; then
+  echo "Backup was not created by openHAB scripts, please resort to a manual restore..." >&2
+  exit 1
+fi
+
+## Grab information with backup.properties
+str="$(awk '/version=/{print $1}' "$TempDir/backup.properties")"
+BackupVersion=${str#*=}
+str="$(awk '/timestamp=/{print $1}' "$TempDir/backup.properties")"
+BackupTime=${str#*=}
+str="$(awk '/user=/{print $1}' "$TempDir/backup.properties")"
+OHUser=${str#*=}
+str="$(awk '/group=/{print $1}' "$TempDir/backup.properties")"
+OHGroup=${str#*=}
+
+## Feeback to user
+echo "---------------------------------"
+echo " Backup Information:    |"
+echo " Backup Version         | $BackupVersion (You are on $CurrentVersion)"
+echo " Backup Timestamp       | $BackupTime"
+echo " Config belongs to user | $OHUser"
+echo "             from group | $OHGroup"
+echo "=--------------------------------"
+echo ""
+echo "Your current configuration will become owned by $OHUser:$OHGroup."
+echo ""
+echo "Any existing files with the same name will be replaced, but"
+echo "this will NOT delete existing files that have no replacement."
+echo ""
+printf "Okay to Continue? [y/N]: "
+read -r answer
+case $answer in
+  [Yy]*)
+    ;;
+  *)
+    echo "Cancelling restore..."
+    rm -rf /tmp/openhab2
+    exit 0
+    ;;
+esac
+
+## Restore configuration
+echo "Moving over configuration"
+command cp -arf "$TempDir/conf/"*     "$OPENHAB_CONF"
+command cp -arf "$TempDir/userdata/"* "$OPENHAB_USERDATA"
+
+## Reset ownership
+chown -R "$OHUser:$OHGroup" "$OPENHAB_USERDATA"
+chown -R "$OHUser:$OHGroup" "$OPENHAB_CONF"
+
+echo "Deleting temporary files..."
+rm -rf /tmp/openhab2
+echo "Backup successfully restored!"
+echo ""