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dotbare/scripts/fbackup
2020-08-25 08:54:32 +10:00

108 lines
3.0 KiB
Bash
Executable File

#!/usr/bin/env bash
#
# backup all tracked files
#
# @params
# Globals
# ${mydir}: current dir of the script
# ${backup_type}: types of backup, individual or all
# ${selected_files}: selected files to backup
# ${action_command}: actions to run, cp|mv
# Arguments
# -h|--help: show help message and exit
# -s|--select: select individual files through fzf and backup
# -p PATH|--path PATH: pass in path and backup
# -m|--move: use mv to backup instead of cp
set -e
set -f
mydir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
source "${mydir}"/../helper/set_variable.sh
source "${mydir}"/../helper/git_query.sh
function usage() {
echo -e "Usage: dotbare fbackup [-h] [-m] [-s] [-p PATH] ...
Backup files to ${DOTBARE_BACKUP}.
This is useful when untracking files or migrating to new machines.
Default: backup all tracked files using cp command to ${DOTBARE_BACKUP} directory.
optional arguments:
-h, --help\t\tshow this help message and exit.
-s, --select\t\tlist all tracked files and only backup the selected files.
-p PATH, --path PATH\tspecify path of files to backup.
-m, --move\t\tuse 'mv' instead of the default 'cp' command to backup."
}
#######################################
# backup passed in files while preserving directory info
# Arguments:
# $1: files to backup, separate by \n
# $2: action command (cp|mv)
#######################################
function dotbare_backup() {
local selected_files="$1"
local action_command="${2:-cp}"
while IFS= read -r line; do
dir_name=$(dirname "${line}")
[[ ! -d "${DOTBARE_BACKUP}/${dir_name}" ]] && mkdir -p "${DOTBARE_BACKUP}/${dir_name}"
[[ "${action_command}" == "cp" ]] \
&& cp -av "${line}" "${DOTBARE_BACKUP}/${line}" \
&& continue
# Purposly didn't use the -v flag because in finit, error message were
# directed to /dev/null but the cp/mv info will still be printed, causing confusion.
[[ "${action_command}" == "mv" ]] \
&& mv "${line}" "${DOTBARE_BACKUP}/${line}" \
&& echo "${line} -> ${DOTBARE_BACKUP}/${line}"
done <<< "${selected_files}"
exit 0
}
backup_type="all"
action_command='cp'
selected_files=""
while [[ "$#" -gt 0 ]]; do
case "$1" in
-s|--select)
backup_type="select"
shift
;;
-p|--path)
[[ -z "$2" ]] && echo "Invalid option: $1" >&2 && usage && exit 1
selected_files="$2"
shift
shift
;;
-m|--move)
action_command="mv"
shift
;;
-h|--help)
usage
exit 0
;;
*)
echo "Invalid option: $1" >&2
usage
exit 1
;;
esac
done
[[ -n "${selected_files}" ]] && dotbare_backup "${selected_files}" "${action_command}"
cd "${DOTBARE_TREE}"
if [[ "${backup_type}" == 'select' ]]; then
selected_files=$(get_git_file "select files to backup" "raw")
else
selected_files=$(git --git-dir="${DOTBARE_DIR}" --work-tree="${DOTBARE_TREE}" \
ls-files --full-name --directory "${DOTBARE_TREE}")
fi
[[ -z "${selected_files}" ]] && exit 1
dotbare_backup "${selected_files}" "${action_command}"