76 lines
2.6 KiB
Bash
76 lines
2.6 KiB
Bash
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#!/data/data/com.termux/files/usr/bin/bash
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ABSPATH="$(readlink -f "$BASH_SOURCE")"
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cd "${ABSPATH%/*}" || { echo "Cannot change directory" >&2; exit 1; }
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function ask() {
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echo -n "$1 [Y/n]? "
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read RESP
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if [ -z "$RESP" ] || [ "${RESP,,}" = "y" ]; then
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return 0
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fi
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return 1
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}
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# Read a variable
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function configure_var() {
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# If the variable already exists, continue without asking questions
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if [ ! -z "${!1}" ]; then
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echo "It is ${!1}"
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return
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fi
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DEFAULT="$2"
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echo -n "export $1= ($2): "
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read RESP
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RESP="${RESP:-$DEFAULT}"
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# Save the variable
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#TODO: This introduces possible bugs when quotes are involved with RESP
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echo "# Line added on $(date +%F-%T)" >>env
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echo "export $1=\"$RESP\"" >>env
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# Load the variable for use in this script
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export "$1"="$RESP"
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}
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# Begin configuration
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echo
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echo "Asking config questions..."
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echo "IMPORTANT: Trailing slashes matter for paths. Consult the rsync manual for details."
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echo "It is recommended to use trailing slashes for all _LOCATION variables."
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echo "Also, paths can be relative or absolute"
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echo
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# Load existing configurations
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test -f ./env && source ./env
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configure_var LOCAL_HOSTNAME android1
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configure_var REMOTE_HOST user@example.com
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configure_var SOURCE_LOCATION "/storage/emulated/0/"
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configure_var DESTINATION_LOCATION "tmp/borg/$LOCAL_HOSTNAME/"
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configure_var BORG_REPO "ssh://$REMOTE_HOST/~/borg-backups"
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configure_var BORG_COMMAND "borg create --verbose --progress --stats --one-file-system --exclude-caches --compression=auto,lzma --exclude=storage/emulated/0/Android"
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configure_var RSYNC_COMMAND "rsync --relative --recursive --links --times --human-readable --partial --info=progress2 --delete --delete-excluded --exclude=storage/emulated/0/Android"
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# Install borg-backup into ~/.shortcuts
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mkdir -p ~/.shortcuts
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if [ -L ~/.shortcuts/borg-backup ]; then
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rm ~/.shortcuts/borg-backup
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fi
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ln -s "$(readlink -f backup-android.sh)" ~/.shortcuts/borg-backup || echo "Unable to link to ~/.shortcuts" >&2
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# Ask about authentication
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SSH_KEYGEN_COMMAND="ssh-keygen -b 512 -t ed25519 -f $HOME/.ssh/id_ed25519 -N ''"
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ask "Generate a new ssh key ($SSH_KEYGEN_COMMAND)" && $SSH_KEYGEN_COMMAND
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ask "Run ssh-copy-id on host" && ssh-copy-id "$HOST"
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# Create destination location
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echo "Creating DESTINATION_LOCATION"
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./run_remote.sh mkdir -p "$DESTINATION_LOCATION"
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# Exclude file
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touch exclude
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ask "Edit exclude file with vi" && vi exclude
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# Run final checks
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ask "Check if borg command exists (on remote)" && { ./run_remote.sh command -v borg || echo "Borg command not found on remote host"; }
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ask "Run borg list (on remote)" && ./run_remote.sh borg list "$BORG_REPO"
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