Bash script for use with borgbackup: Creates a structured symlink tree to the archives in a borg repo.

borg-tree.sh

#!/bin/bash -e

## borg-tree
# With this Bash script, you can create backups like this (note the different types of slashes!):
# # borg create '/path/to/repo::category\subdir\2018-04-15'
# Create the symlink tree like this:
# # borg-tree /path/to/repo /path/for/browsing
# And then browse the archives in paths like this:
# # /path/for/browsing/category/subdir/2018-04-15
# Note that the latter is a SYMLINK; command-line tools like cp should be used with caution.
# Also note that I cannot be held responsible for any loss resulting from using this script,
# so use with caution and at your own risk.

function log () {
	printf '%s\n' "$1"
}

if [[ -z "$2" || -n "$3" ]] ; then
	log 'Please pass 2 arguments: <borg repo> <mount and link target>'
	log 'The target directory will be created automatically, and the repo will be mounted in target/\mnt.'
	exit -1
fi

WORKDIR="$(pwd)"
REPO="$1"
if [[ "${2:0:1}" == / ]] ; then
	TARGET="$2"
else
	TARGET="$WORKDIR"/"$2"
fi

mkdir -p "$TARGET"/\\mnt
borg mount "$REPO" "$TARGET"/\\mnt

cd "$TARGET"/\\mnt
for arch in * ; do
	cd "$WORKDIR"
	arch_slash="$(printf '%s' "$arch" | sed 's,\\,/,g')"
	mkdir -p "$TARGET"/"$arch_slash"
	rmdir "$TARGET"/"$arch_slash"
	ln -s "$TARGET"/\\mnt/"$arch" "$TARGET"/"$arch_slash"
done