GIT Repos update and bulk checkout

BSG_reposUpdate.sh

#!/bin/bash
changed=`tempfile -p changed -s .txt`	# For macOs, see: https://stackoverflow.com/q/19408005/2234369
nochanges=`tempfile -p nochanges -s .txt`
updated=`tempfile -p updated -s .txt`
cantupd=`tempfile -p cantupd -s .txt`
notonAKAdev=`tempfile -p notonAKAdev -s .txt`
switchedto=`tempfile -p switchedto -s .txt`
failedtoswitch=`tempfile -p failedtoswitch -s .txt`

# Setting default values
BRANCH_TO_BRANCH_OFF="master" ### probably the ideal value: "dev"
BRANCH_AKA_MASTER="dev" 			### probably the ideal value: "master"
REPO_ROOT_DIR="${HOME}/SRC/TRIMBLE/BSG/"
FORCE_CHECKOUT_OF_REFBRANCH="no"
CLEAN_ECLIPSE_NOISE="no"

#Print acceptable params
helpme() {
	echo
	echo "`basename $0` help page"
	echo "Parameters might be:...and their default values are:"
	echo "----------------------------------------------------"
	echo -n "-refBranch ${refBranch}";
	echo "         ...the branch to branch off. The reference branch.";
	echo -n "-forceCheckout ${forceCheckout}";
	echo "     ...force checkout of the reference branch.";
	echo -n "-mBranch ${mbranch}";
	echo "           ...the branch which should be treated as Master regardless of its name.";
	echo -n "-repoRoot ${repoRoot}";
	echo "          ...top level directory of your nested repositories. Only one level.";
	echo -n "-cleanEclipseNoise ${cleanEclipseNoise}";
	echo " ...restores Eclipse modified its metadata files.";
	echo "*******************************************************************************"
	echo "*************  !!! DO NOT ENCLOSE VALUES IN DOUBLE QUOTES !!!!  ***************"
	echo "*******************************************************************************"
	echo "Example call:"
	echo 'BSG_reposUpdate.sh -refBranch "master" -mBranch "dev" -repoRoot "~/SRC/TRIMBLE/BSG-V2" -forceCheckout "Yes"'
	echo
	exit 1
} #helpme()

#Parse various arguments
parse_args() {
	echo "#########################################################################"
	echo "######################### `basename $0` ############################"
	echo "#########################################################################"
	while [ $# -gt 0 ] ; do
		echo "PROCESSING ARGs ...: '$1'"
		case "$1" in
				-refBranch)         shift; if [ $# -gt 0 ] ; then BRANCH_TO_BRANCH_OFF=$1; fi;;
				-mBranch)           shift; if [ $# -gt 0 ] ; then BRANCH_AKA_MASTER=$1; fi;;
				-repoRoot)          shift; if [ $# -gt 0 ] ; then REPO_ROOT_DIR=$1; fi;;
				-forceCheckout)     shift; if [ $# -gt 0 ] ; then FORCE_CHECKOUT_OF_REFBRANCH=$1; fi;;
				-cleanEclipseNoise) shift; if [ $# -gt 0 ] ; then CLEAN_ECLIPSE_NOISE=$1; fi;;
				-h|--help|-?|/?|/h)  echo "DONE.";helpme;
		esac
		shift
	done
	echo " -refBranch: ${BRANCH_TO_BRANCH_OFF}";
	echo " -mBranch: ${BRANCH_AKA_MASTER}";
	echo " -repoRoot: ${REPO_ROOT_DIR}";
	echo " -forceCheckout: ${FORCE_CHECKOUT_OF_REFBRANCH}"
	echo " -cleanEclipseNoise: ${CLEAN_ECLIPSE_NOISE}"
	echo "DONE."
} #parse_args()

forceSwitchBranch() {
	## Read those articleas about passing multi words arguments
	# * https://stackoverflow.com/questions/9484364/how-to-substitute-quoted-multi-word-strings-as-arguments
	# * http://mywiki.wooledge.org/BashFAQ/050
	# * https://www.grymoire.com/Unix/Quote.html

	## TODO fix those arguments
	echo -e "arg#1: $1; \targ#2: $2"
	if [ -z "${2}" ]; then
		echo -e "Status: unclean"
	fi
	if [ "${1}" -ne 0 ]; then
		echo -e "There are differences: $1"
	fi

	if [ ${FORCE_CHECKOUT_OF_REFBRANCH} = "Yes" ]; then
		echo -e "\n\tTrying to switch to ${BRANCH_TO_BRANCH_OFF}"
		git checkout ${BRANCH_TO_BRANCH_OFF}
		if [ $? -eq 0 ]; then
			echo -e "Repo: " + $d + " \t\tswitched from a branch: $local_branch to $BRANCH_TO_BRANCH_OFF" >> $switchedto

			git pull --all
			if [ $? -eq 0 ]; then
				echo -e "Repo: " + $d + " \t\t on a switched branch: $BRANCH_TO_BRANCH_OFF \t\t is unclean" >> $updated
			else
				echo -e "Repo: " + $d + " \t\ton a switched branch: $BRANCH_TO_BRANCH_OFF" >> $cantupd
			fi

		else
			echo -e "Repo: " + $d + " \tfailed to switch from $local_branch to $BRANCH_TO_BRANCH_OFF branch" >>$failedtoswitch
		fi
	fi
} #forceSwitchBranch

cleanEclipseNoise() {
	git restore .classpath &> /dev/null
	git restore .project &> /dev/null
	git restore .sts4-cache &> /dev/null
	git restore .settings/org.eclipse.wst.common.component &> /dev/null
	git restore .settings/org.eclipse.m2e.core.prefs &> /dev/null
	git restore .settings/org.eclipse.jdt.core.prefs &> /dev/null
} #doCleanEclipseNoise

# Process arguments given on the command line.
parse_args "$@"
echo

if [ ${FORCE_CHECKOUT_OF_REFBRANCH} = "Yes" ]; then
	echo "Are you sure you want to force checkout this branch: ${BRANCH_TO_BRANCH_OFF} on update?"
	select yn in "Yes" "No"; do
		case $yn in
			Yes) echo "Will proceed your request then..."; break;;
			No) echo "Will exit now. If you change your mind try it again."; exit 2;;
		esac
	done
fi

echo "############### Processing of your request began. ##################"

cd ${REPO_ROOT_DIR}
echo "Repositories where there are local changes:" > $changed
echo "Repositories which successfully been updated:" > $updated
echo "Repositories without local changes:" > $nochanges
echo "Repositories failed to update:" > $cantupd
echo "Repositories not on ${BRANCH_TO_BRANCH_OFF} branch:" > $notonAKAdev
echo "Repositories switched to ${BRANCH_TO_BRANCH_OFF}:" > $switchedto
echo "Repositories failed to switch to ${BRANCH_TO_BRANCH_OFF}:" > $failedtoswitch

for d in *; do
	cd $d; &> /dev/null
	local_branch=$(git rev-parse --abbrev-ref HEAD)
	echo -en "Repo: " + $d + " \t\ton a branch: $local_branch"
	if [ $local_branch != $BRANCH_TO_BRANCH_OFF -a $local_branch != $BRANCH_AKA_MASTER -a $local_branch != "trimble-tsunami-master-on-demand" ]; then
		echo -e "Repo: " + $d + " \t\t on a branch: \t $local_branch" >> $notonAKAdev
	fi

	[[ ${CLEAN_ECLIPSE_NOISE} = "Yes" ]] && cleanEclipseNoise

	exit_status="$(git status --porcelain)"
	if [ -z "${exit_status}" ]; then
		exit_code=$(git diff --exit-code &> /dev/null; echo $?)
		if [ $exit_code -eq 1 ]; then
			echo -e "\n\tThere are local changes in:\n\t$d, ... attempting to update"
			[ $d_temp ! = $d ] && echo -e "Repo: " + $d + " \t\ton a branch: $local_branch" >> $changed

			git pull --all
			if [ $? -eq 0 ]; then
				echo -e "Repo: " + $d + " \t\t on a branch: $local_branch \t\t is unclean" >> $updated
			else
				echo -e "Repo: " + $d + " \t\ton a branch: $local_branch" >> $cantupd
			fi
			forceSwitchBranch $exit_code "${exit_status}"; # force branch switch
		fi

		git pull --all
		if [ $? -eq 0 ]; then
			echo -e "\tNo changes - ready to update"
			echo -e "Repo: " + $d + " \t\t on a branch: $local_branch" >> $nochanges
		else
			echo -e "Repo: " + $d + " \t\ton a branch: $local_branch" >> $cantupd
		fi

		forceSwitchBranch $exit_code "${exit_status}"; # force branch switch
		echo -e "Repo: " + $d + " \t\t on a branch: $local_branch" >> $updated

	else
		#echo -e "\e[33;1m  There are local changes \e[0m"
		echo -e "\n\tThere are local changes here, attempting to update..."
		echo -e "Repo: " + $d + " \t\ton a branch: $local_branch" >> $changed
		d_temp=$d

		git pull --all
		if [ $? -eq 0 ]; then
			 echo -e "Repo: " + $d + " \t\t on a branch: $local_branch \t\t is unclean" >> $updated
		else
			 echo -e "Repo: " + $d + " \t\ton a branch: $local_branch" >> $cantupd
		fi
		exit_code=$(git diff --exit-code &> /dev/null; echo $?)
		forceSwitchBranch $exit_code "${exit_status}"; # force branch switch
	fi

	git fetch --all;
	cd - &> /dev/null;
done


cd - &> /dev/null;

echo "##############################################################"
cat $updated
echo "=============================================================="
cat $changed
echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
cat $cantupd
echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
cat $nochanges
echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
cat $notonAKAdev
if [ ${FORCE_CHECKOUT_OF_REFBRANCH} = "Yes" ]; then
	echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
	cat $switchedto
	echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
	cat $failedtoswitch
fi
echo "##############################################################"

rm $updated
rm $changed
rm $cantupd
rm $nochanges
rm $notonAKAdev
rm $switchedto
rm $failedtoswitch