backup-config.sh

#!/bin/bash

# Backup information about system configuration and programs settings.
# 2020-10-04

# Set bash strict mode.
set -euo pipefail

CodeName="$(lsb_release -cs)" # name of the Linux distro
DirThis="$(dirname "$(realpath "$0")")" # directory of this script
DirPath="${HOME}/config" # main directory with backups
TimeStamp="$(date +%Y-%m-%d_%H-%M-%S)" # unique identifier of this backup
TargetPath="${DirPath}/$HOSTNAME/$CodeName/$USER" # unique path of this backup
PathDotFile="${DirPath}/dot-backup.txt" # file with paths to programs settings

ErrExit() { echo "Error"; exit 1; }

echo "Backing up configuration and settings"
echo "Output directory: ${TargetPath}"

[ -f "$PathDotFile" ] || { echo "File $PathDotFile does not exist."; ErrExit; }

# Create output directory and delete its potential content.
mkdir -p "$TargetPath"
sudo chown -R "$USER":"$USER" "$TargetPath"
rm -rf "${TargetPath:?}"/*

# Initialise a Git repository if not present.
cd "$TargetPath"
git branch > /dev/null 2>&1 || git init

# System
echo "System"
mkdir "${TargetPath}"/system
cp -p /etc/lsb-release "${TargetPath}"/system
#lsb_release -a "${TargetPath}"/system/lsb_release.txt
cp -p /proc/cpuinfo "${TargetPath}"/system
#cp -p /etc/issue "${TargetPath}"/system
uname -a > "${TargetPath}"/system/uname.txt
hostnamectl > "${TargetPath}"/system/hostnamectl.txt
sudo dmidecode -q > "${TargetPath}"/system/bios.txt
sudo lshw -short > "${TargetPath}"/system/hw.txt
lspci > "${TargetPath}"/system/pci.txt
sudo lshw -html > "${TargetPath}"/system/hw.html
#ifconfig -a | grep HWadr > "${TargetPath}"/system/mac.txt
inxi -Fxxxc0 > "${TargetPath}"/system/inxi.txt

# Disk partitions
echo "Disk partitions"
mkdir "${TargetPath}"/disk
cp -p /etc/fstab "${TargetPath}"/disk
cp -p /etc/mtab "${TargetPath}"/disk
cp -p /etc/crypttab "${TargetPath}"/disk
sudo blkid > "${TargetPath}"/disk/blkid.txt
sudo fdisk -l > "${TargetPath}"/disk/fdisk.txt 2>&1
sudo parted -l > "${TargetPath}"/disk/parted.txt 2>&1
sudo df -H > "${TargetPath}"/disk/df.txt
cp -p /proc/mounts "${TargetPath}"/disk
mount | column -t > "${TargetPath}"/disk/mount.txt
cp -p /proc/partitions "${TargetPath}"/disk
cp -p /proc/swaps "${TargetPath}"/disk
lsblk > "${TargetPath}"/disk/lsblk.txt
#sudo hdparm -i /dev/sda > "${TargetPath}"/disk/hdparm.txt

# Packages
echo "Packages"
mkdir "${TargetPath}"/packages
dpkg --get-selections > "${TargetPath}"/packages/dpkg-selections.txt
dpkg -l  > "${TargetPath}"/packages/dpkg-programs.txt
# PPA repositories
cp -p /etc/apt/sources.list "${TargetPath}"/packages
cp -pr /etc/apt/sources.list.d "${TargetPath}"/packages/
#sudo apt-key exportall > "${TargetPath}"/packages/repositories.keys
grep -RoPish "ppa.launchpad.net/[^/]+/[^/ ]+" /etc/apt | sort -u | sed -r 's/\.[^/]+\//:/' > "${TargetPath}"/packages/ppa.txt
# Snap packages
[ -n "$(which snap)" ] && snap list > "${TargetPath}"/packages/snap.txt

# Network connections
echo "Network connections"
mkdir "${TargetPath}"/network
sudo cp -rp /etc/NetworkManager/system-connections "${TargetPath}"/network

# Printer settings
echo "Printer settings"
if [ -f /etc/cups/printers.conf ]; then
  mkdir "${TargetPath}"/printers
  sudo cp -p /etc/cups/printers.conf "${TargetPath}"/printers
else
  echo "- No printer settings found"
fi

# Programs settings
echo "Programs settings"
IFS=$'\n' # needed to avoid splitting strings with spaces
mkdir "${TargetPath}"/programs
for i in $(cat $PathDotFile); do
  DirI="$(dirname "${i}")"
  DirITarget="${TargetPath}/programs/$DirI"
  mkdir -p "$DirITarget"
  cp -rp "$HOME/${i}" "$DirITarget"
done
unset IFS

# Firefox data
echo "Firefox"
"$DirThis/backup-firefox.sh" "${TargetPath}"/firefox

# Adjust ownership of the backup content.
sudo chown -R "$USER":"$USER" "$TargetPath"

# Commit
echo "Creating a commit: $TimeStamp"
cd "$TargetPath"
git add -A
git commit -m "$TimeStamp"
git tag -a "$TimeStamp" -m "$TimeStamp"

echo "Done"