76 lines
1.7 KiB
Bash
76 lines
1.7 KiB
Bash
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#!/usr/bin/env bash
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# 2024-01-29 Hyperling
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# Example of how to pull the polled Backip.zip file. This would be placed on
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# the machine holding the backups in the directory that it should land.
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DIR="$(dirname -- "${BASH_SOURCE[0]}")"
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PROG="$(basename -- "${BASH_SOURCE[0]}")"
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echo "$DIR/$PROG"
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## Variables ##
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DATE="`date '+%Y%m%d'`"
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NEWFILE="$DIR/Backup_${DATE}.zip"
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PREVIOUS="`ls $DIR/Backup_*.zip | sort -r | head -n 1`"
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## Functions ##
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function usage {
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echo -e "Usage: $PROG -d DESTINATION [-u USER] [-p PORT] [-h]\n"
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cat <<- EOF
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Download the latest Backup.zip from a Hyperling/Docker type project. The
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file is downloaded to the directory that this file exists in, so that it
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can be conveniently kept with the backups themselves.
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Parameters
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-d : The server name or IP address running hhe Docker instance.
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-u : Username to connect as. Default LOGNAME, currently '$LOGNAME'.
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-p : Port to connect through. Defaults to 22.
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-h : Display this usage text.
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EOF
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}
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## Parameters ##
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port=22
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user="$LOGNAME"
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while getopts ':d:u:p:h' opt; do
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case "$opt" in
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d) destination="$OPTARG" ;;
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u) user="$OPTARG" ;;
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p) port="$OPTARG" ;;
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h) usage 0 ;;
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*) echo "ERROR: Parameter '$OPTARG' not recognized." >&2
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usage 1 ;;
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esac
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done
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## Validations ##
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if [[ -z $destination ]]; then
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echo "ERROR: Destination was not provided." >&2
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usage 2
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fi
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## Main ##
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echo "`date` - Creating '$NEWFILE'."
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scp -P $port "$user@[$destination]":/tmp/Backup.zip $NEWFILE.tmp
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mv -v $NEWFILE.tmp $NEWFILE
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## Validation ##
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# TBD: Can make this fancier, such as doing a real comparison for size growth.
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echo "`date` - New backup's size:"
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du -h $NEWFILE
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if [[ -n $PREVIOUS ]]; then
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echo "`date` - Previous backup's size:"
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du -h $PREVIOUS
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fi
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## Finish ##
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exit 0
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