Bash script for mirroring yum repositories registered in the system

yum-mirror

#!/usr/bin/env bash
BASEDIR=$(pwd)
PROGRAMDIR=$(dirname $(readlink -f "${BASH_SOURCE[0]}"))
REPOSINFODIR=/etc/yum.repos.d
SYNCSTARTTIME=$(date "+%Y%m%d%H%M%S")
SYNCLOGDIR=$BASEDIR/logs/sync/$SYNCSTARTTIME
GLOBALLOGFILE=SyncLog.log
ALLREPOS=false
VERBOSE=false
SHOWREPOS=false
ARCH=''

VERSION="2020.0614.2040"
CMDLINE="${BASH_SOURCE[0]}"

helpmsg() {
cat << EOF
Yum Mirroring Tool (version: $VERSION) by JackyCCC
Timestamp: 2020-06-14 20:47:00 UTC+0800

Usage: ${BASH_SOURCE[0]} [Options]

Options:
	-h, --help		Show this help message
	--version		Show version of this program

	--allrepos		Syncronize to all repositories, even if disabled
	--enabledrepos		Syncronize to repositories that is enabled in yum
	--showrepos		It shows the repositories in syncronization list, without actually syncronizing.7

	--arch=<ARCH>		Specifies target system architecture

	--basedir=<PATH>	Set a base path for syncronization (default: <Current directory>)
	--logdir=<PATH>		Specifies where log files should be put in (default: <Current directory>/logs/sync/<syncronization start time>)
	--reposinfodir=<PATH>	Specifies the location for information about all yum repositories (default: /etc/yum.repos.d)

	--verbose		Pass verbose to reposync tool

This script requires following packages:
	createrepo_c yum-utils
Please make sure these packages are installed in the system before running.
EOF
} # helpmsg
get_date () {
	echo $(date "+%Y-%m-%d %H:%M:%S UTC%z")
} # get_date
get_repolist () {
	# make parameter 1 as true to return all repositories, include those disabled
	for f in $(ls $REPOSINFODIR); do
		repos=$(grep -oP "^\[\K[^\]]*" $REPOSINFODIR/$f)
		for repo in $repos; do
			if $1 == true; then
				echo $repo
			else
				status=$(yum repoinfo $repo 2>/dev/null | grep -oP "Repo-status *: *\K\w*")
				if [ $status == "enabled" ] 2>/dev/null ; then
					echo $repo
				fi
			fi
		done
	done
} # get_repolist
sync () {
echo "[$(get_date)] Creating log directory if not existed"
mkdir -p $SYNCLOGDIR
echo "[$(get_date)] Running syncronization with parameter: $CMDLINE" | tee -a $SYNCLOGDIR/$GLOBALLOGFILE
echo "[$(get_date)] Parsing Repository" | tee -a $SYNCLOGDIR/$GLOBALLOGFILE
for repo in $(get_repolist $ALLREPOS); do
	LOGFILE=${repo}.log
	echo "[$(get_date)] Starting sync with repo $repo" | tee -a $SYNCLOGDIR/$GLOBALLOGFILE
	echo "[$(get_date)] View syncronize log in $BASEDIR/logs/sync/$LOGFILE" | tee -a $SYNCLOGDIR/$GLOBALLOGFILE
	args="--delete --downloadcomps --repoid=$repo --newest-only --download-metadata --download-path=$BASEDIR/repos/"
	if [ $VERBOSE == true ] ; then # Check if $VERBOSE is true
		args=$(echo "$args --verbose")
	fi
	if [ ! -z "$ARCH" ]; then	# Check if ARCH is set to non-blank value
		args=$(echo "$args --arch=$ARCH")
	fi
	echo "[$(get_date)] reposync $args > >(tee -a $SYNCLOGDIR/$LOGFILE) 2> >(tee -a $SYNCLOGDIR/$LOGFILE >&2)" | tee -a $SYNCLOGDIR/$GLOBALLOGFILE
	reposync $args > >(tee -a $SYNCLOGDIR/$LOGFILE) 2> >(tee -a $SYNCLOGDIR/$LOGFILE >&2)
	echo "[$(get_date)] reposync returned with status ${PIPESTATUS[0]}" | tee -a $SYNCLOGDIR/$GLOBALLOGFILE
done
echo "[$(get_date)] Repository Syncronization completed" | tee -a $SYNCLOGDIR/$GLOBALLOGFILE
} #sync

# Parsing options
for i in "$@"; do
CMDLINE=$(echo "$CMDLINE $i")
case $i in
	-h|--help)
		helpmsg
		exit 0
		shift
		;;
	--basedir=*)
		BASEDIR=${i#*=}
		shift
		;;
	--logdir=*)
		SYNCLOGDIR=${i#*=}
		shift
		;;
	--allrepos)
		ALLREPOS=true
		shift
		;;
	-v|--verbose)
		VERBOSE=true
		shift
		;;
	--reposinfodir=*)
		REPOSINFODIR=${i#*=}
		shift
		;;
	--showrepos)
		SHOWREPOS=true
		shift
		;;
	--version)
		echo $VERSION
		exit 0
		shift
		;;
	*)
		echo "Unknown option $i" >&2
		;;
esac
done

# Action time
if [ $SHOWREPOS == true ] ; then
	get_repolist $ALLREPOS
else
	sync
fi