2013-10-28 08:26:12 +00:00
|
|
|
#!/usr/bin/env bash
|
2013-10-27 04:00:28 +00:00
|
|
|
|
2013-11-26 20:59:00 +00:00
|
|
|
APPNAME=$(basename $0 | sed "s/\.sh$//")
|
|
|
|
|
2013-11-05 08:08:23 +00:00
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
# Log functions
|
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
|
2013-11-26 20:59:00 +00:00
|
|
|
fn_log_info() { echo "$APPNAME: $1"; }
|
2013-12-16 20:45:43 +00:00
|
|
|
fn_log_warn() { echo "$APPNAME: [WARNING] $1" 1>&2; }
|
|
|
|
fn_log_error() { echo "$APPNAME: [ERROR] $1" 1>&2; }
|
2014-01-03 12:40:53 +00:00
|
|
|
fn_log_info_cmd() {
|
2017-09-20 16:40:34 +00:00
|
|
|
if [ -n "$SSH_DEST_FOLDER_PREFIX" ]; then
|
2016-08-12 16:26:44 +00:00
|
|
|
echo "$APPNAME: $SSH_CMD '$1'";
|
|
|
|
else
|
|
|
|
echo "$APPNAME: $1";
|
|
|
|
fi
|
2014-01-03 12:40:53 +00:00
|
|
|
}
|
2013-11-05 08:08:23 +00:00
|
|
|
|
2013-10-27 04:00:28 +00:00
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
# Make sure everything really stops when CTRL+C is pressed
|
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
|
2013-11-05 08:08:23 +00:00
|
|
|
fn_terminate_script() {
|
2016-08-12 16:26:44 +00:00
|
|
|
fn_log_info "SIGINT caught."
|
|
|
|
exit 1
|
2013-10-27 04:00:28 +00:00
|
|
|
}
|
|
|
|
|
2013-11-05 08:08:23 +00:00
|
|
|
trap 'fn_terminate_script' SIGINT
|
2013-10-27 04:00:28 +00:00
|
|
|
|
|
|
|
# -----------------------------------------------------------------------------
|
2013-11-13 18:21:47 +00:00
|
|
|
# Small utility functions for reducing code duplication
|
2013-10-27 04:00:28 +00:00
|
|
|
# -----------------------------------------------------------------------------
|
2014-01-28 18:48:38 +00:00
|
|
|
fn_display_usage() {
|
2017-09-20 15:22:18 +00:00
|
|
|
echo "Usage: $(basename $0) [OPTION]... <[USER@HOST:]SOURCE> <[USER@HOST:]DESTINATION> [exclude-pattern-file]"
|
2016-09-10 10:32:11 +00:00
|
|
|
echo ""
|
|
|
|
echo "Options"
|
|
|
|
echo " -p, --port SSH port."
|
|
|
|
echo " -h, --help Display this help message."
|
|
|
|
echo " --rsync-get-flags Display the default rsync flags that are used for backup."
|
|
|
|
echo " --rsync-set-flags Set the rsync flags that are going to be used for backup."
|
2017-05-02 20:14:36 +00:00
|
|
|
echo " --log-dir Set the log file directory. If this flag is set, generated files will"
|
|
|
|
echo " not be managed by the script - in particular they will not be"
|
|
|
|
echo " automatically deleted."
|
|
|
|
echo " Default: $LOG_DIR"
|
2018-02-23 18:19:09 +00:00
|
|
|
echo " --strategy Set the expiration strategy. Default: \"1:1 30:7 365:30\" means after one"
|
2017-11-26 16:48:03 +00:00
|
|
|
echo " day, keep one backup per day. After 30 days, keep one backup every 7 days."
|
|
|
|
echo " After 365 days keep one backup every 30 days."
|
2017-05-02 20:14:36 +00:00
|
|
|
echo ""
|
|
|
|
echo "For more detailed help, please see the README file:"
|
|
|
|
echo ""
|
|
|
|
echo "https://github.com/laurent22/rsync-time-backup/blob/master/README.md"
|
2014-01-28 18:48:38 +00:00
|
|
|
}
|
2013-10-27 04:00:28 +00:00
|
|
|
|
2013-11-13 08:01:17 +00:00
|
|
|
fn_parse_date() {
|
2017-11-26 16:48:03 +00:00
|
|
|
local date_string="$1"
|
|
|
|
local date_format="$2"
|
2017-11-24 19:16:22 +00:00
|
|
|
|
2017-11-26 16:48:03 +00:00
|
|
|
# Converts YYYY-MM-DD-HHMMSS to YYYY-MM-DD HH:MM:SS and then to Unix Epoch.
|
2016-08-12 16:26:44 +00:00
|
|
|
case "$OSTYPE" in
|
|
|
|
linux*) date -d "${1:0:10} ${1:11:2}:${1:13:2}:${1:15:2}" +%s ;;
|
|
|
|
cygwin*) date -d "${1:0:10} ${1:11:2}:${1:13:2}:${1:15:2}" +%s ;;
|
2017-12-09 10:28:22 +00:00
|
|
|
darwin8*) yy=`expr ${1:0:4}`
|
2017-12-08 21:20:53 +00:00
|
|
|
mm=`expr ${1:5:2} - 1`
|
|
|
|
dd=`expr ${1:8:2}`
|
|
|
|
hh=`expr ${1:11:2}`
|
|
|
|
mi=`expr ${1:13:2}`
|
|
|
|
ss=`expr ${1:15:2}`
|
|
|
|
# Because under MacOS X Tiger 'date -j' doesn't work, we do this:
|
|
|
|
perl -e 'use Time::Local; print timelocal('$ss','$mi','$hh','$dd','$mm','$yy'),"\n";' ;;
|
2016-08-12 16:26:44 +00:00
|
|
|
darwin*) date -j -f "%Y-%m-%d-%H%M%S" "$1" "+%s" ;;
|
2016-10-05 20:51:08 +00:00
|
|
|
FreeBSD*) date -j -f "%Y-%m-%d-%H%M%S" "$1" "+%s" ;;
|
2016-08-12 16:26:44 +00:00
|
|
|
esac
|
2017-11-26 16:59:29 +00:00
|
|
|
}
|
|
|
|
|
2013-11-13 18:21:47 +00:00
|
|
|
fn_find_backups() {
|
2018-02-23 09:25:36 +00:00
|
|
|
fn_run_cmd "find "$DEST_FOLDER/" -maxdepth 1 -type d -name \"????-??-??-??????\" -prune | sort -r"
|
2013-11-13 18:21:47 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
fn_expire_backup() {
|
2016-08-12 16:26:44 +00:00
|
|
|
# Double-check that we're on a backup destination to be completely
|
|
|
|
# sure we're deleting the right folder
|
|
|
|
if [ -z "$(fn_find_backup_marker "$(dirname -- "$1")")" ]; then
|
|
|
|
fn_log_error "$1 is not on a backup destination - aborting."
|
|
|
|
exit 1
|
|
|
|
fi
|
|
|
|
|
|
|
|
fn_log_info "Expiring $1"
|
2017-06-04 10:25:39 +00:00
|
|
|
fn_rm_dir "$1"
|
2014-01-03 12:40:53 +00:00
|
|
|
}
|
2013-11-15 02:50:34 +00:00
|
|
|
|
2017-11-26 16:48:03 +00:00
|
|
|
fn_expire_backups() {
|
|
|
|
local current_timestamp=$EPOCH
|
|
|
|
local last_kept_timestamp=9999999999
|
|
|
|
|
|
|
|
# Process each backup dir from most recent to oldest
|
|
|
|
for backup_dir in $(fn_find_backups | sort -r); do
|
|
|
|
local backup_date=$(basename "$backup_dir")
|
|
|
|
local backup_day=${backup_date:0:10}
|
|
|
|
local backup_timestamp=$(fn_parse_date $backup_day "Y-m-d")
|
|
|
|
|
|
|
|
# Skip if failed to parse date...
|
|
|
|
if [ -z "$backup_timestamp" ]; then
|
|
|
|
fn_log_warn "Could not parse date: $backup_dir"
|
|
|
|
continue
|
|
|
|
fi
|
|
|
|
|
|
|
|
# Find which strategy token applies to this particular backup
|
2017-11-26 16:59:29 +00:00
|
|
|
for strategy_token in $(echo $EXPIRATION_STRATEGY | tr " " "\n" | sort -r -n); do
|
2017-11-26 16:48:03 +00:00
|
|
|
IFS=':' read -r -a t <<< "$strategy_token"
|
|
|
|
|
|
|
|
# After which date (relative to today) this token applies (X)
|
|
|
|
local cut_off_timestamp=$((current_timestamp - ${t[0]} * 86400))
|
|
|
|
|
|
|
|
# Every how many days should a backup be kept past the cut off date (Y)
|
|
|
|
local cut_off_interval=$((${t[1]} * 86400))
|
|
|
|
|
|
|
|
# If we've found the strategy token that applies to this backup
|
|
|
|
if [ "$backup_timestamp" -le "$cut_off_timestamp" ]; then
|
|
|
|
|
|
|
|
# Special case: if Y is "0" we delete every time
|
|
|
|
if [ $cut_off_interval -eq "0" ]; then
|
|
|
|
fn_expire_backup "$backup_dir"
|
|
|
|
break
|
|
|
|
fi
|
|
|
|
|
|
|
|
# Check if the current backup is in the interval between
|
|
|
|
# the last backup that was kept and Y
|
|
|
|
local interval_since_last_kept=$((last_kept_timestamp - backup_timestamp))
|
|
|
|
if [ "$interval_since_last_kept" -lt "$cut_off_interval" ]; then
|
|
|
|
# Yes: Delete that one
|
|
|
|
fn_expire_backup "$backup_dir"
|
|
|
|
else
|
|
|
|
# No: Keep it
|
|
|
|
last_kept_timestamp=$backup_timestamp
|
|
|
|
fi
|
|
|
|
break
|
|
|
|
fi
|
|
|
|
done
|
|
|
|
done
|
|
|
|
}
|
|
|
|
|
2014-01-03 12:40:53 +00:00
|
|
|
fn_parse_ssh() {
|
2017-12-08 21:20:53 +00:00
|
|
|
# To keep compatibility with bash version < 3, we use grep
|
|
|
|
if echo "$DEST_FOLDER"|grep -Eq '^[A-Za-z0-9\._%\+\-]+@[A-Za-z0-9.\-]+\:.+$'
|
2016-08-12 16:26:44 +00:00
|
|
|
then
|
|
|
|
SSH_USER=$(echo "$DEST_FOLDER" | sed -E 's/^([A-Za-z0-9\._%\+\-]+)@([A-Za-z0-9.\-]+)\:(.+)$/\1/')
|
|
|
|
SSH_HOST=$(echo "$DEST_FOLDER" | sed -E 's/^([A-Za-z0-9\._%\+\-]+)@([A-Za-z0-9.\-]+)\:(.+)$/\2/')
|
|
|
|
SSH_DEST_FOLDER=$(echo "$DEST_FOLDER" | sed -E 's/^([A-Za-z0-9\._%\+\-]+)@([A-Za-z0-9.\-]+)\:(.+)$/\3/')
|
2016-08-15 11:01:37 +00:00
|
|
|
SSH_CMD="ssh -p $SSH_PORT ${SSH_USER}@${SSH_HOST}"
|
2017-09-20 15:22:18 +00:00
|
|
|
SSH_DEST_FOLDER_PREFIX="${SSH_USER}@${SSH_HOST}:"
|
2017-12-08 21:20:53 +00:00
|
|
|
elif echo "$SRC_FOLDER"|grep -Eq '^[A-Za-z0-9\._%\+\-]+@[A-Za-z0-9.\-]+\:.+$'
|
2017-09-20 15:22:18 +00:00
|
|
|
then
|
|
|
|
SSH_USER=$(echo "$SRC_FOLDER" | sed -E 's/^([A-Za-z0-9\._%\+\-]+)@([A-Za-z0-9.\-]+)\:(.+)$/\1/')
|
|
|
|
SSH_HOST=$(echo "$SRC_FOLDER" | sed -E 's/^([A-Za-z0-9\._%\+\-]+)@([A-Za-z0-9.\-]+)\:(.+)$/\2/')
|
|
|
|
SSH_SRC_FOLDER=$(echo "$SRC_FOLDER" | sed -E 's/^([A-Za-z0-9\._%\+\-]+)@([A-Za-z0-9.\-]+)\:(.+)$/\3/')
|
|
|
|
SSH_CMD="ssh -p $SSH_PORT ${SSH_USER}@${SSH_HOST}"
|
|
|
|
SSH_SRC_FOLDER_PREFIX="${SSH_USER}@${SSH_HOST}:"
|
2016-08-12 16:26:44 +00:00
|
|
|
fi
|
2014-01-03 12:40:53 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
fn_run_cmd() {
|
2018-01-19 18:42:54 +00:00
|
|
|
if [ -n "$SSH_DEST_FOLDER_PREFIX" ]
|
2016-08-12 16:26:44 +00:00
|
|
|
then
|
|
|
|
eval "$SSH_CMD '$1'"
|
|
|
|
else
|
|
|
|
eval $1
|
|
|
|
fi
|
2014-01-03 12:40:53 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
fn_find() {
|
2016-10-01 12:44:56 +00:00
|
|
|
fn_run_cmd "find '$1'" 2>/dev/null
|
2014-01-03 12:40:53 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
fn_get_absolute_path() {
|
2016-10-01 12:44:56 +00:00
|
|
|
fn_run_cmd "cd '$1';pwd"
|
2014-01-03 12:40:53 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
fn_mkdir() {
|
2016-10-01 12:44:56 +00:00
|
|
|
fn_run_cmd "mkdir -p -- '$1'"
|
2014-01-03 12:40:53 +00:00
|
|
|
}
|
|
|
|
|
2017-06-03 14:31:48 +00:00
|
|
|
# Removes a file or symlink - not for directories
|
|
|
|
fn_rm_file() {
|
|
|
|
fn_run_cmd "rm -f -- '$1'"
|
|
|
|
}
|
|
|
|
|
|
|
|
fn_rm_dir() {
|
|
|
|
fn_run_cmd "rm -rf -- '$1'"
|
|
|
|
}
|
|
|
|
|
2014-01-03 12:40:53 +00:00
|
|
|
fn_touch() {
|
2016-10-01 12:44:56 +00:00
|
|
|
fn_run_cmd "touch -- '$1'"
|
2014-01-03 12:40:53 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
fn_ln() {
|
2016-10-01 12:44:56 +00:00
|
|
|
fn_run_cmd "ln -s -- '$1' '$2'"
|
2013-11-13 18:21:47 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
# Source and destination information
|
|
|
|
# -----------------------------------------------------------------------------
|
2014-01-03 12:40:53 +00:00
|
|
|
SSH_USER=""
|
|
|
|
SSH_HOST=""
|
|
|
|
SSH_DEST_FOLDER=""
|
2017-09-20 15:22:18 +00:00
|
|
|
SSH_SRC_FOLDER=""
|
2014-01-03 12:40:53 +00:00
|
|
|
SSH_CMD=""
|
2017-09-20 15:22:18 +00:00
|
|
|
SSH_DEST_FOLDER_PREFIX=""
|
|
|
|
SSH_SRC_FOLDER_PREFIX=""
|
2016-08-15 11:01:37 +00:00
|
|
|
SSH_PORT="22"
|
2013-11-13 18:21:47 +00:00
|
|
|
|
2016-08-15 10:29:15 +00:00
|
|
|
SRC_FOLDER=""
|
|
|
|
DEST_FOLDER=""
|
|
|
|
EXCLUSION_FILE=""
|
2017-05-02 20:14:36 +00:00
|
|
|
LOG_DIR="$HOME/.$APPNAME"
|
|
|
|
AUTO_DELETE_LOG="1"
|
2018-02-23 17:55:12 +00:00
|
|
|
EXPIRATION_STRATEGY="1:1 30:7 365:30"
|
2016-08-15 10:29:15 +00:00
|
|
|
|
2017-05-02 21:58:01 +00:00
|
|
|
RSYNC_FLAGS="-D --compress --numeric-ids --links --hard-links --one-file-system --itemize-changes --times --recursive --perms --owner --group --stats --human-readable"
|
2016-09-10 10:32:11 +00:00
|
|
|
|
2016-08-15 10:29:15 +00:00
|
|
|
while :; do
|
|
|
|
case $1 in
|
|
|
|
-h|-\?|--help)
|
|
|
|
fn_display_usage
|
|
|
|
exit
|
|
|
|
;;
|
2016-08-15 11:01:37 +00:00
|
|
|
-p|--port)
|
|
|
|
shift
|
|
|
|
SSH_PORT=$1
|
|
|
|
;;
|
2016-09-10 10:32:11 +00:00
|
|
|
--rsync-get-flags)
|
|
|
|
shift
|
|
|
|
echo $RSYNC_FLAGS
|
|
|
|
exit
|
|
|
|
;;
|
|
|
|
--rsync-set-flags)
|
|
|
|
shift
|
|
|
|
RSYNC_FLAGS="$1"
|
|
|
|
;;
|
2017-11-24 19:16:22 +00:00
|
|
|
--strategy)
|
|
|
|
shift
|
2018-02-23 18:19:09 +00:00
|
|
|
EXPIRATION_STRATEGY="$1"
|
2017-11-24 19:16:22 +00:00
|
|
|
;;
|
2017-05-02 20:14:36 +00:00
|
|
|
--log-dir)
|
|
|
|
shift
|
|
|
|
LOG_DIR="$1"
|
|
|
|
AUTO_DELETE_LOG="0"
|
|
|
|
;;
|
2016-08-15 10:29:15 +00:00
|
|
|
--)
|
|
|
|
shift
|
2016-11-29 12:28:10 +00:00
|
|
|
SRC_FOLDER="$1"
|
|
|
|
DEST_FOLDER="$2"
|
2016-08-15 10:29:15 +00:00
|
|
|
EXCLUSION_FILE="$3"
|
|
|
|
break
|
|
|
|
;;
|
2017-11-17 09:20:50 +00:00
|
|
|
-*)
|
2016-08-15 10:29:15 +00:00
|
|
|
fn_log_error "Unknown option: \"$1\""
|
|
|
|
fn_log_info ""
|
|
|
|
fn_display_usage
|
|
|
|
exit 1
|
|
|
|
;;
|
|
|
|
*)
|
2016-11-29 12:28:10 +00:00
|
|
|
SRC_FOLDER="$1"
|
|
|
|
DEST_FOLDER="$2"
|
2016-08-15 10:29:15 +00:00
|
|
|
EXCLUSION_FILE="$3"
|
|
|
|
break
|
|
|
|
esac
|
|
|
|
|
|
|
|
shift
|
|
|
|
done
|
|
|
|
|
|
|
|
# Display usage information if required arguments are not passed
|
|
|
|
if [[ -z "$SRC_FOLDER" || -z "$DEST_FOLDER" ]]; then
|
2014-01-28 18:48:38 +00:00
|
|
|
fn_display_usage
|
|
|
|
exit 1
|
|
|
|
fi
|
2013-10-27 04:00:28 +00:00
|
|
|
|
2017-09-20 16:40:34 +00:00
|
|
|
# Strips off last slash from dest. Note that it means the root folder "/"
|
2016-11-29 12:28:10 +00:00
|
|
|
# will be represented as an empty string "", which is fine
|
|
|
|
# with the current script (since a "/" is added when needed)
|
|
|
|
# but still something to keep in mind.
|
2017-09-20 16:40:34 +00:00
|
|
|
# However, due to this behavior we delay stripping the last slash for
|
|
|
|
# the source folder until after parsing for ssh usage.
|
|
|
|
|
2016-11-29 12:28:10 +00:00
|
|
|
DEST_FOLDER="${DEST_FOLDER%/}"
|
|
|
|
|
2014-01-03 12:40:53 +00:00
|
|
|
fn_parse_ssh
|
|
|
|
|
|
|
|
if [ -n "$SSH_DEST_FOLDER" ]; then
|
2016-08-12 16:26:44 +00:00
|
|
|
DEST_FOLDER="$SSH_DEST_FOLDER"
|
2014-01-03 12:40:53 +00:00
|
|
|
fi
|
|
|
|
|
2017-09-20 15:22:18 +00:00
|
|
|
if [ -n "$SSH_SRC_FOLDER" ]; then
|
|
|
|
SRC_FOLDER="$SSH_SRC_FOLDER"
|
|
|
|
fi
|
|
|
|
|
2017-09-20 16:40:34 +00:00
|
|
|
# Now strip off last slash from source folder.
|
|
|
|
SRC_FOLDER="${SRC_FOLDER%/}"
|
|
|
|
|
2013-11-16 14:50:10 +00:00
|
|
|
for ARG in "$SRC_FOLDER" "$DEST_FOLDER" "$EXCLUSION_FILE"; do
|
2016-08-15 10:29:15 +00:00
|
|
|
if [[ "$ARG" == *"'"* ]]; then
|
|
|
|
fn_log_error 'Source and destination directories may not contain single quote characters.'
|
2016-08-12 16:26:44 +00:00
|
|
|
exit 1
|
|
|
|
fi
|
2013-10-30 13:45:48 +00:00
|
|
|
done
|
|
|
|
|
2013-10-27 04:00:28 +00:00
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
# Check that the destination drive is a backup drive
|
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
|
2013-11-05 08:08:23 +00:00
|
|
|
# TODO: check that the destination supports hard links
|
|
|
|
|
2013-11-26 20:55:17 +00:00
|
|
|
fn_backup_marker_path() { echo "$1/backup.marker"; }
|
2014-01-03 12:40:53 +00:00
|
|
|
fn_find_backup_marker() { fn_find "$(fn_backup_marker_path "$1")" 2>/dev/null; }
|
2013-11-05 08:08:23 +00:00
|
|
|
|
2013-11-26 20:55:17 +00:00
|
|
|
if [ -z "$(fn_find_backup_marker "$DEST_FOLDER")" ]; then
|
2016-08-12 16:26:44 +00:00
|
|
|
fn_log_info "Safety check failed - the destination does not appear to be a backup folder or drive (marker file not found)."
|
|
|
|
fn_log_info "If it is indeed a backup folder, you may add the marker file by running the following command:"
|
|
|
|
fn_log_info ""
|
|
|
|
fn_log_info_cmd "mkdir -p -- \"$DEST_FOLDER\" ; touch \"$(fn_backup_marker_path "$DEST_FOLDER")\""
|
|
|
|
fn_log_info ""
|
|
|
|
exit 1
|
2013-10-27 04:00:28 +00:00
|
|
|
fi
|
|
|
|
|
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
# Setup additional variables
|
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
|
2013-11-15 19:08:28 +00:00
|
|
|
# Date logic
|
2013-10-27 04:00:28 +00:00
|
|
|
NOW=$(date +"%Y-%m-%d-%H%M%S")
|
2013-11-15 19:08:28 +00:00
|
|
|
EPOCH=$(date "+%s")
|
2015-01-20 21:36:48 +00:00
|
|
|
KEEP_ALL_DATE=$((EPOCH - 86400)) # 1 day ago
|
|
|
|
KEEP_DAILIES_DATE=$((EPOCH - 2678400)) # 31 days ago
|
2013-11-15 19:08:28 +00:00
|
|
|
|
|
|
|
export IFS=$'\n' # Better for handling spaces in filenames.
|
2013-11-26 21:08:52 +00:00
|
|
|
DEST="$DEST_FOLDER/$NOW"
|
|
|
|
PREVIOUS_DEST="$(fn_find_backups | head -n 1)"
|
|
|
|
INPROGRESS_FILE="$DEST_FOLDER/backup.inprogress"
|
2015-09-25 22:15:35 +00:00
|
|
|
MYPID="$$"
|
2013-11-15 18:24:52 +00:00
|
|
|
|
2013-11-05 08:08:23 +00:00
|
|
|
# -----------------------------------------------------------------------------
|
2017-05-02 20:14:36 +00:00
|
|
|
# Create log folder if it doesn't exist
|
2013-11-05 08:08:23 +00:00
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
|
2017-05-02 20:14:36 +00:00
|
|
|
if [ ! -d "$LOG_DIR" ]; then
|
|
|
|
fn_log_info "Creating log folder in '$LOG_DIR'..."
|
|
|
|
mkdir -- "$LOG_DIR"
|
2013-11-05 08:08:23 +00:00
|
|
|
fi
|
|
|
|
|
2013-10-27 04:00:28 +00:00
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
# Handle case where a previous backup failed or was interrupted.
|
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
|
2014-01-03 12:40:53 +00:00
|
|
|
if [ -n "$(fn_find "$INPROGRESS_FILE")" ]; then
|
2015-11-08 11:09:28 +00:00
|
|
|
if [ "$OSTYPE" == "cygwin" ]; then
|
2017-05-19 00:04:31 +00:00
|
|
|
# 1. Grab the PID of previous run from the PID file
|
|
|
|
RUNNINGPID="$(fn_run_cmd "cat $INPROGRESS_FILE")"
|
|
|
|
|
|
|
|
# 2. Get the command for the process currently running under that PID and look for our script name
|
|
|
|
RUNNINGCMD="$(procps -wwfo cmd -p $RUNNINGPID --no-headers | grep "$APPNAME")"
|
|
|
|
|
|
|
|
# 3. Grab the exit code from grep (0=found, 1=not found)
|
|
|
|
GREPCODE=$?
|
|
|
|
|
|
|
|
# 4. if found, assume backup is still running
|
|
|
|
if [ "$GREPCODE" = 0 ]; then
|
|
|
|
fn_log_error "Previous backup task is still active - aborting (command: $RUNNINGCMD)."
|
|
|
|
exit 1
|
|
|
|
fi
|
2018-01-19 18:42:54 +00:00
|
|
|
else
|
2016-08-12 16:26:44 +00:00
|
|
|
RUNNINGPID="$(fn_run_cmd "cat $INPROGRESS_FILE")"
|
2018-01-19 18:42:54 +00:00
|
|
|
if [ "$RUNNINGPID" = "$(pgrep -o -f "$APPNAME")" ]; then
|
2016-08-12 16:26:44 +00:00
|
|
|
fn_log_error "Previous backup task is still active - aborting."
|
|
|
|
exit 1
|
|
|
|
fi
|
2013-10-27 04:00:28 +00:00
|
|
|
fi
|
2015-09-25 22:15:35 +00:00
|
|
|
|
2016-08-12 16:26:44 +00:00
|
|
|
if [ -n "$PREVIOUS_DEST" ]; then
|
|
|
|
# - Last backup is moved to current backup folder so that it can be resumed.
|
|
|
|
# - 2nd to last backup becomes last backup.
|
2017-09-20 15:22:18 +00:00
|
|
|
fn_log_info "$SSH_DEST_FOLDER_PREFIX$INPROGRESS_FILE already exists - the previous backup failed or was interrupted. Backup will resume from there."
|
2016-08-12 16:26:44 +00:00
|
|
|
fn_run_cmd "mv -- $PREVIOUS_DEST $DEST"
|
|
|
|
if [ "$(fn_find_backups | wc -l)" -gt 1 ]; then
|
|
|
|
PREVIOUS_DEST="$(fn_find_backups | sed -n '2p')"
|
|
|
|
else
|
|
|
|
PREVIOUS_DEST=""
|
|
|
|
fi
|
|
|
|
# update PID to current process to avoid multiple concurrent resumes
|
|
|
|
fn_run_cmd "echo $MYPID > $INPROGRESS_FILE"
|
|
|
|
fi
|
2013-10-27 04:00:28 +00:00
|
|
|
fi
|
|
|
|
|
2013-11-12 03:14:02 +00:00
|
|
|
# Run in a loop to handle the "No space left on device" logic.
|
2013-11-26 21:02:29 +00:00
|
|
|
while : ; do
|
2013-10-27 04:00:28 +00:00
|
|
|
|
2016-08-12 16:26:44 +00:00
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
# Check if we are doing an incremental backup (if previous backup exists).
|
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
|
|
|
|
LINK_DEST_OPTION=""
|
|
|
|
if [ -z "$PREVIOUS_DEST" ]; then
|
|
|
|
fn_log_info "No previous backup - creating new one."
|
|
|
|
else
|
|
|
|
# If the path is relative, it needs to be relative to the destination. To keep
|
|
|
|
# it simple, just use an absolute path. See http://serverfault.com/a/210058/118679
|
|
|
|
PREVIOUS_DEST="$(fn_get_absolute_path "$PREVIOUS_DEST")"
|
2017-09-20 15:22:18 +00:00
|
|
|
fn_log_info "Previous backup found - doing incremental backup from $SSH_DEST_FOLDER_PREFIX$PREVIOUS_DEST"
|
2016-08-12 16:26:44 +00:00
|
|
|
LINK_DEST_OPTION="--link-dest='$PREVIOUS_DEST'"
|
|
|
|
fi
|
|
|
|
|
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
# Create destination folder if it doesn't already exists
|
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
|
|
|
|
if [ -z "$(fn_find "$DEST -type d" 2>/dev/null)" ]; then
|
2017-09-20 15:22:18 +00:00
|
|
|
fn_log_info "Creating destination $SSH_DEST_FOLDER_PREFIX$DEST"
|
2016-08-12 16:26:44 +00:00
|
|
|
fn_mkdir "$DEST"
|
|
|
|
fi
|
|
|
|
|
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
# Purge certain old backups before beginning new backup.
|
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
|
2017-11-26 16:48:03 +00:00
|
|
|
fn_expire_backups
|
2016-08-12 16:26:44 +00:00
|
|
|
|
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
# Start backup
|
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
|
2017-05-02 20:14:36 +00:00
|
|
|
LOG_FILE="$LOG_DIR/$(date +"%Y-%m-%d-%H%M%S").log"
|
2016-08-12 16:26:44 +00:00
|
|
|
|
|
|
|
fn_log_info "Starting backup..."
|
2017-09-20 15:36:36 +00:00
|
|
|
fn_log_info "From: $SSH_SRC_FOLDER_PREFIX$SRC_FOLDER/"
|
2017-09-20 15:22:18 +00:00
|
|
|
fn_log_info "To: $SSH_DEST_FOLDER_PREFIX$DEST/"
|
2016-08-12 16:26:44 +00:00
|
|
|
|
|
|
|
CMD="rsync"
|
|
|
|
if [ -n "$SSH_CMD" ]; then
|
2016-08-15 11:01:37 +00:00
|
|
|
CMD="$CMD -e 'ssh -p $SSH_PORT -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null'"
|
2016-08-12 16:26:44 +00:00
|
|
|
fi
|
2016-09-10 10:32:11 +00:00
|
|
|
CMD="$CMD $RSYNC_FLAGS"
|
2016-08-12 16:26:44 +00:00
|
|
|
CMD="$CMD --log-file '$LOG_FILE'"
|
|
|
|
if [ -n "$EXCLUSION_FILE" ]; then
|
|
|
|
# We've already checked that $EXCLUSION_FILE doesn't contain a single quote
|
|
|
|
CMD="$CMD --exclude-from '$EXCLUSION_FILE'"
|
|
|
|
fi
|
|
|
|
CMD="$CMD $LINK_DEST_OPTION"
|
2017-09-20 15:36:36 +00:00
|
|
|
CMD="$CMD -- '$SSH_SRC_FOLDER_PREFIX$SRC_FOLDER/' '$SSH_DEST_FOLDER_PREFIX$DEST/'"
|
2016-08-12 16:26:44 +00:00
|
|
|
|
|
|
|
fn_log_info "Running command:"
|
|
|
|
fn_log_info "$CMD"
|
|
|
|
|
|
|
|
fn_run_cmd "echo $MYPID > $INPROGRESS_FILE"
|
|
|
|
eval $CMD
|
|
|
|
|
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
# Check if we ran out of space
|
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
|
|
|
|
NO_SPACE_LEFT="$(grep "No space left on device (28)\|Result too large (34)" "$LOG_FILE")"
|
|
|
|
|
|
|
|
if [ -n "$NO_SPACE_LEFT" ]; then
|
|
|
|
fn_log_warn "No space left on device - removing oldest backup and resuming."
|
|
|
|
|
|
|
|
if [[ "$(fn_find_backups | wc -l)" -lt "2" ]]; then
|
|
|
|
fn_log_error "No space left on device, and no old backup to delete."
|
|
|
|
exit 1
|
|
|
|
fi
|
|
|
|
|
|
|
|
fn_expire_backup "$(fn_find_backups | tail -n 1)"
|
|
|
|
|
|
|
|
# Resume backup
|
|
|
|
continue
|
|
|
|
fi
|
|
|
|
|
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
# Check whether rsync reported any errors
|
|
|
|
# -----------------------------------------------------------------------------
|
2017-05-02 21:58:01 +00:00
|
|
|
|
2017-05-08 20:14:15 +00:00
|
|
|
EXIT_CODE="1"
|
2016-08-12 16:26:44 +00:00
|
|
|
if [ -n "$(grep "rsync error:" "$LOG_FILE")" ]; then
|
2017-05-02 21:14:22 +00:00
|
|
|
fn_log_error "Rsync reported an error. Run this command for more details: grep -E 'rsync:|rsync error:' '$LOG_FILE'"
|
2017-05-08 20:14:15 +00:00
|
|
|
elif [ -n "$(grep "rsync:" "$LOG_FILE")" ]; then
|
2017-05-02 21:14:22 +00:00
|
|
|
fn_log_warn "Rsync reported a warning. Run this command for more details: grep -E 'rsync:|rsync error:' '$LOG_FILE'"
|
2017-05-08 20:14:15 +00:00
|
|
|
else
|
|
|
|
fn_log_info "Backup completed without errors."
|
|
|
|
if [[ $AUTO_DELETE_LOG == "1" ]]; then
|
|
|
|
rm -f -- "$LOG_FILE"
|
|
|
|
fi
|
|
|
|
EXIT_CODE="0"
|
2017-05-02 21:14:22 +00:00
|
|
|
fi
|
|
|
|
|
2016-08-12 16:26:44 +00:00
|
|
|
# -----------------------------------------------------------------------------
|
2017-05-08 20:14:15 +00:00
|
|
|
# Add symlink to last backup
|
2016-08-12 16:26:44 +00:00
|
|
|
# -----------------------------------------------------------------------------
|
|
|
|
|
2017-06-03 14:31:48 +00:00
|
|
|
fn_rm_file "$DEST_FOLDER/latest"
|
2016-08-12 16:26:44 +00:00
|
|
|
fn_ln "$(basename -- "$DEST")" "$DEST_FOLDER/latest"
|
|
|
|
|
2017-06-03 14:31:48 +00:00
|
|
|
fn_rm_file "$INPROGRESS_FILE"
|
2016-08-12 16:26:44 +00:00
|
|
|
|
2017-05-08 20:14:15 +00:00
|
|
|
exit $EXIT_CODE
|
2013-11-05 08:08:23 +00:00
|
|
|
done
|