You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
143 lines
6.4 KiB
143 lines
6.4 KiB
#!/usr/bin/env bash
|
|
# pass backup - Password Store Extension (https://www.passwordstore.org/)
|
|
# Copyright (C) 2019
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
# []
|
|
|
|
VERSION="1.1.1"
|
|
PASSWORD_STORE_BACKUP_DEBUG=false # true or false, prints debugging messages
|
|
PASSWORD_STORE_BACKUP_DIR=".backups" # default backup directory is $PASSWORD_STORE_BACKUP_DIR; if it is a relative path it becomes $PASSWORD_STORE_DIR/$PASSWORD_STORE_BACKUP_DIR
|
|
PASSWORD_STORE_BACKUP_BASENAME="passwordstore" # to create backup filenames like passwordstore.190407.123423.tar.gz2
|
|
TAR=$(which tar)
|
|
|
|
cmd_backup_usage() {
|
|
cat <<-_EOF
|
|
Usage:
|
|
$PROGRAM backup [backuplocation]
|
|
On the first run it creates a directory ".backups" in \$PASSWORD_STORE_DIR.
|
|
By default this is ~/.password-store/.backups".
|
|
It creates a backup of the complete password store by creating a
|
|
compressed tar-file with extension .tar.bz2.
|
|
Backups themselves are excluded from the backup.
|
|
Without argument the backup file will receive the default name "passwordstore.DATE.TIME.tar.bz2"
|
|
where DATE and TIME are the current date and time.
|
|
If an argument is given and it is a directory, the backup file will be placed
|
|
into the specified directory instead of the default ".backups" directory.
|
|
If an argument is given and it is not a directory, it is used as a file
|
|
name and the backup is stored with this filename with .at.gz2 appended.
|
|
$PROGRAM backup help
|
|
Prints this help message.
|
|
$PROGRAM backup version
|
|
Prints the version number.
|
|
|
|
Example: $PROGRAM backup
|
|
this is the typical usage
|
|
creates a backup and places it into \$PASSWORD_STORE_DIR/.backups
|
|
e.g. ~/.password-store/.backups/passwordstore.190407.122034.tar.gz2
|
|
Example: $PROGRAM backup Documents/Backups/
|
|
creates a backup and places it into Documents/Backups/
|
|
i.e. Documents/Backups/passwordstore.190407.122034.tar.gz2
|
|
Example: $PROGRAM backup Documents/Backups/mypassbackup
|
|
creates a backup and places it into
|
|
Documents/Backups/mypassbackup.tar.gz2
|
|
|
|
For installation place this bash script file "backup.bash" into
|
|
the passwordstore extension directory specified with \$PASSWORD_STORE_EXTENSIONS_DIR.
|
|
By default this is ~/.password-store/.extensions.
|
|
E.g. cp backup.bash ~/.password-store/.extensions
|
|
Give the file execution permissions:
|
|
E.g. chmod 700 ~/.password-store/.extensions/backup.bash
|
|
Set the variable PASSWORD_STORE_ENABLE_EXTENSIONS to true to enable extensions.
|
|
E.g. export PASSWORD_STORE_ENABLE_EXTENSIONS=true
|
|
Source the bash completion file "pass-backup.bash.completion" for bash completion.
|
|
E.g. source ~/.password-store/.bash-completions/pass-backup.bash.completion
|
|
Type "pass backup" to create your first backup.
|
|
E.g. pass backup
|
|
_EOF
|
|
exit 0
|
|
}
|
|
|
|
cmd_backup_version() {
|
|
echo $VERSION
|
|
exit 0
|
|
}
|
|
|
|
cmd_backup_createbackup() {
|
|
[[ $# -gt 1 ]] && die "Too many arguments. At most 1 argument allowed."
|
|
|
|
[[ -z "$TAR" ]] && die "Failed to generate backup: tar is not installed."
|
|
TODAYTIME=$(date "+%Y%m%d.%H%M%S") # e.g. 20190409.212327
|
|
|
|
# expect 0 or 1 argument
|
|
# ignore 2nd argument and higher
|
|
if [ $# -eq 0 ]; then
|
|
PASSWORD_STORE_BACKUP_PATH="$PASSWORD_STORE_BACKUP_DIR/${PASSWORD_STORE_BACKUP_BASENAME}.${TODAYTIME}.tar.bz2" # path includes filename
|
|
$PASSWORD_STORE_BACKUP_DEBUG && echo "No arguments supplied. That is okay."
|
|
$PASSWORD_STORE_BACKUP_DEBUG && echo "Setting backup directory to $PASSWORD_STORE_BACKUP_DIR"
|
|
$PASSWORD_STORE_BACKUP_DEBUG && echo "Setting backup file to $PASSWORD_STORE_BACKUP_PATH"
|
|
else
|
|
ARG1="$1"
|
|
case "$ARG1" in
|
|
/*)
|
|
$PASSWORD_STORE_BACKUP_DEBUG && echo "$ARG1 is an absolute path"
|
|
;;
|
|
*)
|
|
$PASSWORD_STORE_BACKUP_DEBUG && echo "$ARG1 is a relative path"
|
|
ARG1="$(pwd)/$ARG1"
|
|
$PASSWORD_STORE_BACKUP_DEBUG && echo "Now $ARG1 is an absolute path"
|
|
;;
|
|
esac
|
|
|
|
if [[ -d "$ARG1" ]]; then
|
|
$PASSWORD_STORE_BACKUP_DEBUG && echo "Argument $ARG1 is a directory"
|
|
PASSWORD_STORE_BACKUP_PATH="$ARG1/${PASSWORD_STORE_BACKUP_BASENAME}.${TODAYTIME}.tar.bz2" # path includes filename
|
|
else
|
|
$PASSWORD_STORE_BACKUP_DEBUG && echo "Argument $ARG1 treated as a filename"
|
|
PASSWORD_STORE_BACKUP_PATH="${ARG1}.tar.bz2"
|
|
fi
|
|
$PASSWORD_STORE_BACKUP_DEBUG && echo "Setting exclusion directory to $PASSWORD_STORE_BACKUP_DIR"
|
|
$PASSWORD_STORE_BACKUP_DEBUG && echo "Setting backup file to $PASSWORD_STORE_BACKUP_PATH"
|
|
fi
|
|
|
|
[[ -f "$PASSWORD_STORE_BACKUP_PATH" ]] && yesno "File $PASSWORD_STORE_BACKUP_PATH already exists. Overwrite it?"
|
|
|
|
if [ -z "$PASSWORD_STORE_DIR" ]; then # var is empty
|
|
PASSWORD_STORE_DIR="${HOME}/.password-store"
|
|
fi
|
|
$PASSWORD_STORE_BACKUP_DEBUG && echo "Password storage directory is $PASSWORD_STORE_DIR"
|
|
|
|
pushd "${PASSWORD_STORE_DIR}" >/dev/null || die "Could not cd into directory $PASSWORD_STORE_DIR. Aborting."
|
|
mkdir -p "${PASSWORD_STORE_BACKUP_DIR}" >/dev/null || die "Could not create directory $PASSWORD_STORE_BACKUP_DIR. Aborting."
|
|
tar --exclude="${PASSWORD_STORE_BACKUP_DIR}" -cjf "${PASSWORD_STORE_BACKUP_PATH}" . # add v for debugging if need be
|
|
chmod 400 "${PASSWORD_STORE_BACKUP_PATH}" >/dev/null || die "Could not change permissions to read-only on file $PASSWORD_STORE_BACKUP_PATH. Aborting."
|
|
BZ2SIZE=$(wc -c <"${PASSWORD_STORE_BACKUP_PATH}") # returns size in bytes
|
|
BZ2ENTRIES=$(tar -tf "${PASSWORD_STORE_BACKUP_PATH}" | wc -l)
|
|
echo "Created backup file \"${PASSWORD_STORE_BACKUP_PATH}\" of size ${BZ2SIZE} bytes with ${BZ2ENTRIES} entries."
|
|
popd >/dev/null || die "Could not change directory. Aborting."
|
|
}
|
|
|
|
case "$1" in
|
|
help | --help | -h)
|
|
shift
|
|
cmd_backup_usage "$@"
|
|
;;
|
|
version | --version | -v)
|
|
shift
|
|
cmd_backup_version "$@"
|
|
;;
|
|
*) cmd_backup_createbackup "$@" ;;
|
|
esac
|
|
exit 0
|