#!/bin/bash

# {{ ansible_managed }}

error_exit() {
    printf "%s\n" "$1"
    exit 1
}

NICE="ionice -c2 nice -n19"
JOB=$1

if [ -z "$JOB" ]; then
    error_exit "job is missing"
fi

RESTIC_ETC_PATH="{{ restic_etc_path }}"
JOB_PATH="${RESTIC_ETC_PATH}/jobs/${JOB}"
JOB_ENV="${JOB_PATH}/env.sh"

if [ ! -r "$JOB_ENV" ]; then
    error_exit "${JOB_ENV} does not exist"
fi

. "$JOB_ENV"

if [ -z "${REPO+x}" ]; then
    error_exit "\$REPO is not set"
fi

REPO_PATH="${RESTIC_ETC_PATH}/repos/${REPO}"
REPO_ENV="${REPO_PATH}/env.sh"

if [ ! -r "$REPO_ENV" ]; then
    error_exit "${REPO_ENV} does not exist"
fi

. "$REPO_ENV"

EXCLUDE_PATH="${JOB_PATH}/exclude.txt"

if [ -z "${PATHS+x}" ]; then
    error_exit "\$PATHS is not set"
fi

if [ -r "$EXCLUDE_PATH" ]; then
    $NICE {{ restic_path }} backup -q --exclude-file="${EXCLUDE_PATH}" "${PATHS}"
else
    $NICE {{ restic_path }} backup -q "${PATHS}"
fi