dotfiles/.local/bin/scripts/bag

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#!/bin/sh
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# Backup linux system and user files with borg
root="/"
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args="--progress --stats"
while test $# -gt 0; do
case "$1" in
(-n) run="arg-test"; shift;;
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(--dry-run) args="--dry-run --list"; name=test-$(date +%s); shift;;
(--root) shift; root="$1"; name="$(basename "$(realpath "$root")")"; echo $root $name; shift;;
(-*) name="${1#-}"; shift;;
(*) break;;
esac
done
test $# -gt 0 || cd "$root"
name="::$(test -n "$name" && echo "$name" || cat /etc/hostname)_${1:-system}_$(date -u +"%y%m%d")"
echo "Backing up as $name"
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${run:-sudo --preserve-env=BORG_REPO BORG_PASSPHRASE="$($BORG_PASSCOMMAND)" borg} create --exclude-caches $args \
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$(echo $DIRS_IGNORE_SAFE -x 'software-challenge/**/build' -x state/emacs -x state/go -x .local/lib -x .cpan -x *cache -x $HOME/.gem |
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sed 's|-x \([^ ]\+\)|-e sh:**/\1|g') \
"$name" $(test $# -eq 0 && echo etc home root || test $# -eq 1 && echo $1) "${@:2}" 2>&1
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test -n "$run" || sudo chown -R $USER:$USER "$BORG_REPO"