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#!/bin/bash
set -euo pipefail
set -o allexport
# shellcheck source=../../.config/duplicity/config
source ~/.config/duplicity/config
set +o allexport
source_directory=~
excludes=~/.config/duplicity/excludes
target_url=b2://"$B2_KEY_ID"@"$B2_BUCKET"
# take a new full backup every month, incremental otherwise
duplicity backup --full-if-older-than 1M --exclude-filelist "$excludes" "$source_directory" "$target_url"
# keep 12 months of full backups
duplicity remove-all-but-n-full 12 --force "$target_url"
# keep 3 months of incremental backups
duplicity remove-all-inc-of-but-n-full 3 --force "$target_url"
# cleanup
duplicity cleanup --force "$target_url"
# show collection status
duplicity collection-status "$target_url"
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