commit 303c790d99197c2460c6467dbc79c6e034bb8ea0
Author: Patrick Niebeling <patrick.niebeling@adacor.com>
Date:   Tue Nov 19 11:42:07 2024 +0100

    First Commit

diff --git a/LICENSE b/LICENSE
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+The MIT License (MIT)
+
+Copyright (c) 2015 Jonas Friedmann
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
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+tar-multibackup
+===============
+Bash script to backup multiple folders and to clean up old backups based on a retention time. Features configurable post/pre-commands, tar excludes as well as backup retentions.
+
+### Installation
+    cd /usr/local/src
+    git clone https://github.com/frdmn/tar-multibackup.git
+    ln -sf /usr/local/src/tar-multibackup/multibackup /usr/local/bin/multibackup
+    cp /usr/local/src/tar-multibackup/multibackup.conf ~/.multibackup.conf
+
+### Configuration and usage
+
+* `timestamp` = Format of the timestamp, used in the backup target filename
+* `backup_destination` = Directory which is used to store the archives/backups
+* `folders_to_backup` = Array of folders to backup
+* `backup_retention` = Retention time how long we should keep the backups
+* `pre_commands` = Array of commands that are executed before the backup starts (stop specific service)
+* `post_commands` = Array of commands that are executed after the backup finished (start specific service)
+* `tar_options` = Additional tar Options
+
+### Environment configurations
+
+* `DEBUG` = if set to "true", `set -x` will be set
+* `CONFIG` = if you want to use a different configuration file than the 
+
+Example: 
+
+    CONFIG=/tmp/testbackup.conf DEBUG=true multibackup
+
+#### Example configuration 
+
+In the example below you can find a `multibackup` configuration file to backup a productional [LiveConfig](http://www.liveconfig.com/) instance.
+
+`vi ~/.multibackup.conf`
+
+    # Timestamp format, used in the backup target filename
+    timestamp=$(date +%Y%m%d)
+
+    # Destination where you want to store your backups
+    backup_destination="/var/backups"
+
+    # Folders to backup
+    folders_to_backup=(
+      "/etc"
+      "/var/mail"
+      "/var/www"
+      "/var/lib/mysql"
+      "/var/spool/cron"
+      "/var/lib/liveconfig"
+    )
+
+    # Files and folders that are excluded in the tar command
+    tar_excludes=(
+      "nginx-php-fcgi.sock"
+    )
+
+    # Additional tar Options
+    tar_options=()
+
+    # How long to you want to keep your backups (in days)
+    backup_retention="+7"
+
+    # Commands that are executed before the backup started
+    # (We have to make sure the liveconfig process is not running)
+    # (otherwise the databases changes while we try to save it)
+    pre_commands=(
+      "service liveconfig stop"
+    )
+
+    # Commands that are executed after the backup is completed
+    # (To restart the liveconfig process again, once the backup is completed)
+    post_commands=(
+      "service liveconfig start"
+    )
+
+#### Cronjob setup
+
+To make sure the backup is executed automatically and recurring, we're going to add a simple cronjob:
+
+`vi /etc/cron.d/backup-liveconfig`
+
+    #
+    # cronjob to backup LiveConfig, daily at 5:00 am
+    #
+
+    0 5 * * *        root       /usr/local/bin/multibackup &>/dev/null
+
+#### CREDITS
+This Backup Script is a fork of https://github.com/frdmn/tar-multibackup
\ No newline at end of file
diff --git a/multibackup b/multibackup
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+#!/usr/bin/env bash
+
+[[ -n "${DEBUG}" ]] && set -x
+
+###
+# Configuration
+###
+
+# Use "~/.multibackup" as default config, if $CONFIG is not specified
+CONFIG="${CONFIG:-${HOME}/.multibackup.conf}"
+
+###
+# Functions
+###
+
+# Color helpers
+color_red=$(tput setaf 1)
+color_yellow=$(tput setaf 3)
+color_green=$(tput setaf 2)
+color_reset=$(tput sgr0)
+
+# Logging prefix helper
+prefix(){
+  # Check if placeholders variables are given
+  if [[ -n "${current_action}" && -n "${current_task}" && -n "${total_tasks}" ]]; then
+    # Return prefix
+    echo "[${current_action}] [${current_task}/${total_tasks}] "
+  fi
+}
+
+# Logging helpers
+debug() {
+  echo "$(prefix)[DEBUG] $@ " 1>&2
+}
+
+success() {
+  echo "$(prefix)${color_green}[SUCCESS]${color_reset} $@" 1>&2
+}
+
+info() {
+  echo "$(prefix)${color_yellow}[INFO]${color_reset} $@" 1>&2
+}
+
+error() {
+  echo "$(prefix)${color_red}[ERROR]${color_reset} $@" 1>&2
+}
+
+# Strip all redundant slashes in file paths
+strip_duplicate_slashes_in_path(){
+  # Backup current shopt options
+  shoptBackup=$(shopt -p)
+  # Set extented globbing
+  shopt -s extglob
+  # Substitute input (turn multiple slashes into single one) and return
+  echo "${@//+(\/)//}"
+  # Restore shopt
+  eval "$oldShoptOptions" &> /dev/null
+}
+
+# Replace all slashes with dashes
+replace_slash_with_dash(){
+    input="${@////-}"     # replace all slashes with dashes
+    input="${input/#-/}"  # remove possible starting dash
+    output="${input/%-/}" # as well as possible trailing dash
+    echo "${output}"
+}
+
+###
+# Logic
+###
+
+# Check for config file then read and source
+if [[ -f "${CONFIG}" ]]; then
+  . "${CONFIG}"
+else
+  error "Couldn't find configuration file \"${CONFIG}\""
+  exit 1
+fi
+
+# Iterate through tar_excludes to create a "--exclude=XXX" combination string
+tar_exclude_parameters=()
+if [[ "${#tar_excludes[@]}" -ne 0 ]]; then
+  # Run each pre command
+  for parameter in "${tar_excludes[@]}"; do
+    tar_exclude_parameters+=( "--exclude=${parameter}" )
+  done
+fi
+
+# Set prefix variables for pre-commands
+current_action="pre-command"
+current_task=1
+total_tasks="${#pre_commands[@]}"
+
+# Iterate through pre_commnads
+if [[ "${#pre_commands[@]}" -ne 0 ]]; then
+  info "Found pre commands..."
+  # Run each pre command
+  for pre_command in "${pre_commands[@]}"; do
+    info "Running \"${pre_command}\":"
+    eval "${pre_command}"
+    # Check if pre command ran successfully
+    if [[ $? -eq 0 ]]; then
+      success "Pre command \"${pre_command}\" successfully completed!"
+    else
+      error "Pre command \"${pre_command}\" failed..."
+    fi
+  done
+fi
+
+# Set prefix variables for backup
+current_action="backup"
+current_task=1
+total_tasks="${#folders_to_backup[@]}"
+
+# Iterate through "$folders_to_backup"
+for folder_to_backup in "${folders_to_backup[@]}"; do
+  # Check if folder exists
+  debug "Check if source folder \"${folder_to_backup}\" exists..."
+  if [[ -d "${folder_to_backup}" ]]; then
+    # Exist => continue
+    info "Source folder \"${folder_to_backup}\" exists!"
+    # Make sure backup destination exists
+    backup_basename=$(replace_slash_with_dash "${folder_to_backup}")
+    absolute_backup_destination=$(strip_duplicate_slashes_in_path "${backup_destination}/${backup_basename}")
+    if [[ ! -d "${absolute_backup_destination}" ]]; then
+      info "Backup destination folder \"${absolute_backup_destination}\" doesn't exist. Creating..."
+      mkdir -p "${absolute_backup_destination}"
+    fi
+
+    # Check if backup already exists (to make sure)
+    if [[ -f "${absolute_backup_destination}/${timestamp}.tar.gz" ]]; then
+      error "Backup \"${absolute_backup_destination}/${timestamp}.tar.gz\" already exists. Skipping..."
+    else
+      # Start backup
+      info "Starting backup \"${absolute_backup_destination}/${timestamp}.tar.gz\""
+      tar ${tar_options} -czf "${absolute_backup_destination}/${timestamp}.tar.gz" -P "${folder_to_backup}" "${tar_exclude_parameters[@]}"
+      if [[ $? -eq 0 ]]; then
+        success "Backup \"${absolute_backup_destination}/${timestamp}.tar.gz\" successfully completed!"
+      else
+        error "Backup \"${absolute_backup_destination}/${timestamp}.tar.gz\" failed..."
+      fi
+    fi
+
+    # Remove old backups
+    if [[ ! -z "${backup_retention}" ]]; then
+      find "${absolute_backup_destination}/" -maxdepth 1 -mtime "${backup_retention}" -type f -exec rm -rf {} \;
+    fi
+  else
+    # Doesn't exist => skip
+    error "Folder \"${folder_to_backup}\" doesn't exist. Skipping..."
+  fi
+  # Increment $current_task variable
+  current_task=$((current_task+1))
+done
+
+# Set prefix variables for pre-commands
+current_action="post-command"
+current_task=1
+total_tasks="${#post_commands[@]}"
+
+# Iterate through post_commnads
+if [[ "${#post_commands[@]}" -ne 0 ]]; then
+  info "Found post commands..."
+  # Run each post command
+  for post_command in "${post_commands[@]}"; do
+    info "Running \"${post_command}\":"
+    eval "${post_command}"
+    # Check if post command ran successfully
+    if [[ $? -eq 0 ]]; then
+      success "Post command \"${post_command}\" successfully completed!"
+    else
+      error "Post command \"${post_command}\" failed..."
+    fi
+  done
+fi
+
+# Return exit code
+exit 0
diff --git a/multibackup.conf b/multibackup.conf
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+# Timestamp format, used in the backup target filename
+timestamp=$(date +%Y%m%d)
+
+# Destination where you want to store your backups
+backup_destination="/var/backups"
+
+# Folders to backup
+folders_to_backup=(
+  "/var/www"
+  "/var/lib/mysql"
+)
+
+# Files and folders that are excluded in the tar command
+tar_excludes=()
+
+# Additional tar Options
+tar_options=()
+
+# How long to you want to keep your backups (in days)
+backup_retention="+7"
+
+# Commands that are executed before the backup started
+pre_commands=()
+
+# Commands that are executed after the backup is completed
+post_commands=()