backup-agents/os_debian

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#!/bin/bash
restoreDir="/etc/restore"
function is_bin_in_path {
builtin type -P "$1" &>/dev/null
}
hook_before() {
if ! is_bin_in_path rsync; then
echo "rsync needs to be installed for backups to work properly."
exit 1
fi
mkdir -p "$restoreDir" || exit 1
pushd "$restoreDir" || exit 2
dpkg --get-selections | sort > Package.list
apt-mark showmanual | sort > InstallOnly.list
cp -a /etc/apt/sources.list "$restoreDir/"
rsync -avhHi /etc/apt/sources.list.d "$restoreDir/"
rsync -avhHi /etc/apt/trusted.gpg.d "$restoreDir/"
[[ -d /etc/apt/keyrings ]] && rsync -avhHi /etc/apt/keyrings "$restoreDir/"
cat > restore.sh <<EOF
#!/bin/bash
if [[ ! -f "InstallOnly.list" ]]; then
echo "This needs to be run inside the restore directory."
exit 1
fi
if [[ ! -d "trusted.gpg.d" ]]; then
echo "This needs to be run inside the restore directory."
exit 1
fi
TMPDIR="\$(mktemp -d -t restore-XXXX)"
bold="$(tput bold)"
normal="$(tput sgr0)"
cleanup() {
[[ -n "\$TMPDIR" && -d "\$TMPDIR" ]] && rm -rf "\$TMPDIR"
}
trap cleanup EXIT
#apt-key add /etc/restore/Repo.keys
#dpkg --set-selections < /etc/restore/Package.list
#apt-get dselect-upgrade
install=""
echo "\${bold} * Installing required packages\${normal}"
dpkg-query -s 'rsync' &>/dev/null || install+=" rsync"
#dpkg-query -s 'borgbackup' &>/dev/null || install+=" borgbackup"
#dpkg-query -s 'borgmatic' &>/dev/null || install+=" borgmatic"
dpkg-query -s 'apt-transport-https' &>/dev/null || install+=" apt-transport-https"
if [[ -n "\$install" ]]; then
apt -y install \$install
fi
echo "\${bold} * Enabling 32-bit packages\${normal}"
grep ':i386' InstallOnly.list &>/dev/null && dpkg --add-architecture i386
echo "\${bold} * Checking for flatpak\${normal}"
flatpak=0
grep 'flatpak' InstallOnly.list &>/dev/null && flatpak=1
if [[ "\$flatpak" -eq 1 ]]; then
echo " * Adding flatpak repo: Flathub"
flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo
fi
if [[ -r "sources.list" ]]; then
echo "\${bold}"
echo "=============================="
echo "INSTALL REPOS"
echo "=============================="
echo "\${normal}"
read -p "\${bold}Do you want to continue to install backup repositories? [Y/n]\${normal} " -n 1 -sr promptRepos
if [[ "\$promptRepos" =~ ^[Yy]$ ]]; then
echo "Yes"
cp -a sources.list /etc/apt/sources.list
rsync --ignore-existing -raz sources.list.d/ /etc/apt/sources.list.d/
rsync --ignore-existing -raz trusted.gpg.d/ /etc/apt/trusted.gpg.d/
[[ -d keyrings ]] && rsync --ignore-existing -raz keyrings/ /etc/apt/keyrings/
apt update
else
echo -e "Cancelled\n"
fi
fi
echo "\${bold}"
echo "=============================="
echo "INSTALL PACKAGES"
echo "=============================="
echo "\${normal}"
read -p "\${bold}About to install the system packages per the backup. Do you want to continue? [Y/n]\${normal} " -n 1 -sr promptPkgs
if [[ "\$promptPkgs" =~ ^[Yy] ]]; then
echo "Yes"
comm --nocheck-order -23 InstallOnly.list <(apt-mark showmanual|sort) | grep -Ev 'linux-image|linux-headers' > "\${TMPDIR}/diff.list"
apt-get --simulate install \$(cat "\${TMPDIR}/diff.list") |& awk '/^E: Unable to locate package / {print \$NF}' | sort > "\${TMPDIR}/diff.fail"
comm --nocheck-order -23 "\${TMPDIR}/diff.list" "\${TMPDIR}/diff.fail" | xargs apt-get install
echo
echo "Packages that were omitted because they could not be found:"
cat "\${TMPDIR}/diff.fail" | tr '\n' ' ' | fold -s
echo
echo
read -p "\${bold}Did everything above look okay and do you want to proceed? [Y/n]\${normal} " -n 1 -sr promptPkgsDo
if [[ "\$promptPkgsDo" =~ ^[Yy] ]]; then
comm --nocheck-order -23 "\${TMPDIR}/diff.list" "\${TMPDIR}/diff.fail" | xargs apt-get install
echo
echo
echo "\${bold}Packages that failed to schedule for install:\${normal}"
cat "\${TMPDIR}/diff.fail" | tr '\n' ' ' | fold -s
echo
echo
else
echo -e "Cancelled\n"
fi
else
echo -e "Cancelled\n"
fi
EOF
chmod ug+rx restore.sh
popd || exit 2
}
hook_after() {
:
}
hook_fail() {
:
}
hook_final() {
:
}
case "$1" in
before) hook_before || exit $?;;
after) hook_after || exit $?;;
fail) hook_final || exit $?;;
finally) hook_final || exit $?;;
esac