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25
files/git-backup/S52Git-Backup
Executable file
25
files/git-backup/S52Git-Backup
Executable file
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#!/bin/sh
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case "$1" in
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start)
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echo "Starting Git Backup..."
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/usr/data/helper-script/files/git-backup/git-backup.sh -b "$BRANCH" -t "$IFS" -g origin & > /dev/null
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;;
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stop)
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echo "Stopping Git Backup..."
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pkill Git-Backup
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pkill inotifywait
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;;
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restart)
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echo "Restarting Git Backup..."
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pkill Git-Backup
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pkill inotifywait
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sleep 1
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/usr/data/helper-script/files/git-backup/git-backup.sh -b "$BRANCH" -t "$IFS" -g origin & > /dev/null
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;;
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*)
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Usage: $0 {start|stop|restart}
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exit 1
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;;
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esac
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exit 0
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35
files/git-backup/git-backup.cfg
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35
files/git-backup/git-backup.cfg
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########################################
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# Git Backup
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########################################
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[gcode_shell_command Backup_Stop]
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command: sh /usr/data/helper-script/files/git-backup/git-backup.sh -s
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timeout: 600.0
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verbose: true
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[gcode_shell_command Backup_Pause]
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command: sh /usr/data/helper-script/files/git-backup/git-backup.sh -p
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timeout: 600.0
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verbose: true
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[gcode_shell_command Backup_Resume]
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command: sh /usr/data/helper-script/files/git-backup/git-backup.sh -s
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timeout: 600.0
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verbose: true
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[gcode_macro GIT_BACKUP_STOP]
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gcode:
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RUN_SHELL_COMMAND CMD=Backup_Stop
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[gcode_macro GIT_BACKUP_PAUSE]
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gcode:
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RUN_SHELL_COMMAND CMD=Backup_Pause
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[gcode_macro GIT_BACKUP_RESUME]
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gcode:
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RUN_SHELL_COMMAND CMD=Backup_Resume
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310
files/git-backup/git-backup.sh
Executable file
310
files/git-backup/git-backup.sh
Executable file
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#!/bin/sh
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#
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# This program is based off of gitwatch @ https://github.com/gitwatch/gitwatch.git
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# Copyright (C) 2013-2018 Patrick Lehner
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# with modifications and contributions by:
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# - Matthew McGowan
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# - Dominik D. Geyer
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# - Phil Thompson
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# - Dave Musicant
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#
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# Edited to work on busybox ash shell, specifically the Creality K1 & K1Max
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#############################################################################
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#############################################################################
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#
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# Idea and original code taken from http://stackoverflow.com/a/965274
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# original work by Lester Buck
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# (but heavily modified by now)
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#
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# Requires the command 'inotifywait' to be available, which is part of
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# the inotify-tools (See https://github.com/rvoicilas/inotify-tools ),
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# and (obviously) git.
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# Will check the availability of both commands using the `which` command
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# and will abort if either command (or `which`) is not found.
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#
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white=`echo -en "\033[m"`
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yellow=`echo -en "\033[1;33m"`
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green=`echo -en "\033[01;32m"`
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INSTALL=0
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PAUSE=0
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RESUME=0
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STOP=0
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REMOTE=""
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BRANCH=""
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TARGET=""
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EVENTS="${EVENTS:-close_write,move,move_self,delete,create,modify}"
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SLEEP_TIME=5
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DATE_FMT="+%d-%m-%Y (%H:%M:%S)"
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COMMITMSG="Auto-commit on %d by Git Backup"
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SKIP_IF_MERGING=0
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# Function to print script help
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shelp() {
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echo "Usage: $(basename "$0") [-i] [-p] [-r] [-s] -b branch -t target -g remote"
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echo "Options:"
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echo " -i Install"
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echo " -p Pause"
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echo " -r Resume"
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echo " -s Stop"
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echo " -b branch Specify branch for git push"
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echo " -t target Specify target directory or file to watch"
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echo " -g remote Specify remote for git push"
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}
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# Parse command-line arguments
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while getopts "iprsb:t:g:hn" option; do
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case "${option}" in
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i) INSTALL=1 ;;
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p) PAUSE=1 ;;
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r) RESUME=1 ;;
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s) STOP=1 ;;
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b) BRANCH="${OPTARG}" ;;
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t) TARGET="${OPTARG}" ;;
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g) REMOTE="${OPTARG}" ;;
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h)
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shelp
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exit 0
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;;
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\?)
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echo "Invalid option: -$OPTARG" >&2
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shelp
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exit 1
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;;
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:)
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echo "Option -$OPTARG requires an argument." >&2
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shelp
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exit 1
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;;
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*)
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shelp
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exit 0
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;;
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esac
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done
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# Check if more than one flag is used
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if [ "$((INSTALL + PAUSE + RESUME + STOP))" -gt 1 ]; then
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echo "Error: Only one flag is allowed at a time."
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shelp
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exit 1
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fi
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# Pause, Resume, Stop flags
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if [ "$PAUSE" = 1 ]; then
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echo "Info: Pausing automatic backups until the next reboot or manually restarted..."
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/etc/init.d/S52Git-Backup stop
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exit 0
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elif [ "$STOP" = 1 ]; then
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echo "Info: Stopping automatic backups until manually restarted..."
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mv /etc/init.d/S52Git-Backup /etc/init.d/disabled.S52Git-Backup
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exit 0
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elif [ "$RESUME" = 1 ]; then
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echo "Info: Resuming automatic backups..."
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mv /etc/init.d/disabled.S52Git-Backup /etc/init.d/S52Git-Backup
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exit 0
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elif [ "$INSTALL" = 1 ]; then
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# Install required packages using opkg
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if [ -f /opt/bin/opkg ]; then
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/opt/bin/opkg update
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/opt/bin/opkg install inotifywait procps-ng-pkill
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else
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echo "Error: opkg package manager not found. Please install Entware."
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exit 1
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fi
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# Prompt user for configuration
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echo "${white}"
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read -p " Please enter your ${green}GitHub username${white} and press Enter: ${yellow}" USER_NAME
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echo "${white}"
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read -p " Please enter your ${green}GitHub repository name${white} and press Enter: ${yellow}" REPO_NAME
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echo "${white}"
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read -p " Please enter your ${green}GitHub personal access token${white} and press Enter: ${yellow}" GITHUB_TOKEN
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echo "${white}"
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# Prompt user to select folders to be watched
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IFS=/usr/data/printer_data/config
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# Connect config directory to github
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cd "$IFS" || exit
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git init
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git remote add origin "https://$USER_NAME:$GITHUB_TOKEN@github.com/$USER_NAME/$REPO_NAME.git"
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git checkout -b "$BRANCH"
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git add .
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git commit -m "Initial Backup"
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git push -u origin "$BRANCH"
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# Write configuration to .env file
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echo "IFS=$IFS" > "$IFS/.env"
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echo "GITHUB_TOKEN=$GITHUB_TOKEN" >> "$IFS/.env"
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echo "REMOTE=$REPO_NAME" >> "$IFS/.env"
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echo "BRANCH=$BRANCH" >> "$IFS/.env"
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echo "USER=$USER_NAME" >> "$IFS/.env"
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# Create .gitignore file to protect .env variables
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echo ".env" > "$IFS/.gitignore"
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# Insert .env to S52gitwatch.sh and move to init.d
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cp -f /usr/data/helper-script/files/git-backup/S52Git-Backup /etc/init.d/S52Git-Backup
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sed -i "2i source $IFS/.env" /etc/init.d/S52Git-Backup
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chmod +x /etc/init.d/S52Git-Backup
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/etc/init.d/S52Git-Backup start
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exit 0
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fi
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# print all arguments to stderr
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stderr() {
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echo "$@" >&2
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}
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# clean up at end of program, killing the remaining sleep process if it still exists
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cleanup() {
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if [ -n "$SLEEP_PID" ] && kill -0 "$SLEEP_PID" 2>/dev/null; then
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kill "$SLEEP_PID" 2>/dev/null
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fi
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exit 0
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}
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# Tests for the availability of a command
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is_command() {
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command -v "$1" >/dev/null 2>&1
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}
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# Test whether or not current git directory has ongoing merge
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is_merging () {
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[ -f "$(git rev-parse --git-dir)"/MERGE_HEAD ]
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}
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shift $((OPTIND - 1)) # Shift the input arguments, so that the input file (last arg) is $1 in the code below
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GIT="git"
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RL="readlink"
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INW="inotifywait"
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# Check availability of selected binaries and die if not met
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for cmd in "$GIT" "$INW"; do
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is_command "$cmd" || {
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stderr "Error: Required command '$cmd' not found."
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exit 2
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}
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done
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SLEEP_PID="" # pid of timeout subprocess
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trap "cleanup" EXIT # make sure the timeout is killed when exiting script
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# Expand the path to the target to absolute path
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if [ "$(uname)" != "Darwin" ]; then
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IN=$($RL -f "$TARGET")
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else
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if is_command "greadlink"; then
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IN=$(greadlink -f "$TARGET")
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else
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IN=$($RL -f "$TARGET")
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if [ $? -eq 1 ]; then
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echo "Info: Seems like your readlink doesn't support '-f'. Running without. Please 'brew install coreutils'."
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IN=$($RL "$TARGET")
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fi
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fi
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fi
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if [ -d "$TARGET" ]; then # if the target is a directory
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TARGETDIR=$(echo "$IN" | sed -e "s/\/*$//") # dir to CD into before using git commands: trim trailing slash, if any
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# construct inotifywait-commandline
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if [ "$(uname)" != "Darwin" ]; then
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INW_ARGS="-qmr -e $EVENTS $TARGETDIR"
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fi
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GIT_ADD="git add -A ." # add "." (CWD) recursively to index
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GIT_COMMIT_ARGS="-a" # add -a switch to "commit" call just to be sure
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else
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stderr "Error: The target is neither a regular file nor a directory."
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exit 3
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fi
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# CD into the right dir
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cd "$TARGETDIR" || {
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stderr "Error: Can't change directory to '${TARGETDIR}'."
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exit 5
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}
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if [ -n "$REMOTE" ]; then # are we pushing to a remote?
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if [ -z "$BRANCH" ]; then # Do we have a branch set to push to ?
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PUSH_CMD="$GIT push $REMOTE" # Branch not set, push to remote without a branch
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else
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# check if we are on a detached HEAD
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if HEADREF=$($GIT symbolic-ref HEAD 2> /dev/null); then # HEAD is not detached
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PUSH_CMD="$GIT push $REMOTE ${HEADREF#refs/heads/}:$BRANCH"
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else # HEAD is detached
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PUSH_CMD="$GIT push $REMOTE $BRANCH"
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fi
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fi
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else
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PUSH_CMD="" # if no remote is selected, make sure the push command is empty
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fi
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# main program loop: wait for changes and commit them
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# whenever inotifywait reports a change, we spawn a timer (sleep process) that gives the writing
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# process some time (in case there are a lot of changes or w/e); if there is already a timer
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# running when we receive an event, we kill it and start a new one; thus we only commit if there
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# have been no changes reported during a whole timeout period
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# Custom timeout function
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# main program loop: wait for changes and commit them
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# Custom timeout function
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timeout() {
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sleep "5" &
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timeout_pid=$!
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trap "kill $timeout_pid 2>/dev/null" EXIT
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wait $timeout_pid 2>/dev/null
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}
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while true; do
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# Start inotifywait to monitor changes
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eval "$INW $INW_ARGS" | while read -r line; do
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# Check if there were any changes reported during the timeout period
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if [ -n "$line" ]; then
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# Process changes
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if [ -n "$DATE_FMT" ]; then
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COMMITMSG=$(echo "$COMMITMSG" | awk -v date="$(date "$DATE_FMT")" '{gsub(/%d/, date)}1') # splice the formatted date-time into the commit message
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fi
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cd "$TARGETDIR" || {
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stderr "Error: Can't change directory to '${TARGETDIR}'."
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exit 6
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}
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STATUS=$($GIT status -s)
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if [ -n "$STATUS" ]; then # only commit if status shows tracked changes.
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if [ "$SKIP_IF_MERGING" -eq 1 ] && is_merging; then
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echo "Skipping commit - repo is merging"
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continue
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fi
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$GIT_ADD # add file(s) to index
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$GIT commit $GIT_COMMIT_ARGS -m "$COMMITMSG" # construct commit message and commit
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if [ -n "$PUSH_CMD" ]; then
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echo "Push command is $PUSH_CMD"
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eval "$PUSH_CMD"
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pkill 'inotifywait'
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timeout
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fi
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fi
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fi
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done
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done
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