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rootfs/usr/local/sbin/zio-backup

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#!/bin/bash
env_dir=$1
base_dir="$(dirname "$(realpath -s "$0")")"
root_dir="$base_dir/../../.."
[[ -z $env_dir ]] && env_dir="/var/lib/zio-backup"
function restic_exec() {
command="$1"
args="${@:2}"
if [[ -z $command ]]; then
say_warn "No command specified. Not running."
else
restic \
--cleanup-cache \
--password-file "$passwd_file" \
--repo "$repo" \
$command $args
fi
}
function backup() {
path="$1"
args="${@:2}"
if [[ ! -d $path ]]; then
warn "'$path' does not exist. Not backing up."
else
restic_exec \
backup \
--iexclude "__MACOSX" \
--iexclude ".cache" \
--iexclude ".DS_Store" \
--iexclude "cache" \
--iexclude "CachedData" \
--iexclude "CachedExtensionVSIXs" \
--iexclude "Code Cache" \
--iexclude "GPUCache" \
--iexclude "GrSharedCache" \
--iexclude "ShaderCache" \
--iexclude "system-cache" \
--iexclude "thumbs.db" \
--iexclude "tmp" \
--exclude-if-present ".nobackup" \
--host "$host" \
$args "$path"
fi
}
function forget() {
path="$1"
restic_exec \
forget \
--host "$host" \
--keep-last 5 \
--path "$tag"
}
function get_prop() {
file=$1
item=$2
echo $(grep -oP '(?<=^'"$item"'=).+' $file | tr -d '"')
}
function say() {
message=$@
echo -e "$@"
}
function say_die() {
message=$@
say "\033[1;31mError: $message\033[0m"
exit 255
}
function say_do() {
message=$@
say "\033[1;34m$message\033[0m"
}
function say_warn() {
message=$@
say "\033[1;33mWarning: $message\033[0m"
}
function test_path() {
prog=$@
if [[ ! -x "$(command -v $prog)" ]]; then
say_die "'$prog' is not installed (or not in \$PATH). Aborting..."
fi
}
host="de01"
repo="b2:zio-euc-servers"
paths=()
passwd_file=""
pre_script=""
post_script=""
services=()
if [[ $UID != 0 ]]; then
say_die "Unauthorized (are you root?)"
fi
if [[ ! -d $env_dir ]]; then
say_warn "Environment directory ($env_dir) not found."
else
chown root:root -R $env_dir
chmod 660 -R $env_dir
[[ -f "$env_dir/$host.pre" ]] && pre_script="$env_dir/$host.pre"
[[ -f "$env_dir/$host.post" ]] && post_script="$env_dir/$host.post"
if [[ -f "$env_dir/$host.var" ]]; then
[[ ! -z $(get_prop "$env_dir/$host.var" PATHS) ]] && \
IFS=';' read -ra services <<< "$(get_prop "$env_dir/$host.var" PATHS)"
[[ ! -z $(get_prop "$env_dir/$host.var" SERVICES) ]] && \
IFS=';' read -ra services <<< "$(get_prop "$env_dir/$host.var" SERVICES)"
fi
if [[ -f "$env_dir/passwd" ]]; then
passwd_file="$env_dir/passwd"
else
say_warn "Password file ($passwd_file) not found."
fi
fi
[[ -z $paths ]] && say_die "No paths specified. Aborting..."
if [[ ! -z $pre_script ]]; then
say_do "Executing pre-backup script..."
. $pre_script
fi
say_do "Stopping services..."
for service in "${services[@]}"
do
systemctl stop $service
done
say_do "Backing up files..."
for path in "${paths[@]}"
do
backup $path
done
say_do "Starting services..."
for service in "${services[@]}"
do
systemctl start $service
done
if [[ ! -z $post_script ]]; then
say_do "Executing post-backup script..."
. $post_script
fi
say_do "Removing old backups..."
for path in "${paths[@]}"
do
forget $path
done