#!/bin/bash

# BEGIN_ICS_COPYRIGHT8 ****************************************

# 

# Copyright (c) 2015, Intel Corporation

# 

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# modification, are permitted provided that the following conditions are met:

# 

#     * Redistributions of source code must retain the above copyright notice,

#       this list of conditions and the following disclaimer.

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# [ICS VERSION STRING: unknown]

# copy a file to all hosts

# optional override of defaults

if [ -f /etc/opa/opafastfabric.conf ]

then

	. /etc/opa/opafastfabric.conf

fi

. /usr/lib/opa/tools/opafastfabric.conf.def

. /usr/lib/opa/tools/ff_funcs

temp="$(mktemp --tmpdir "opascpall.XXXXXX")"

trap "rm -f $temp; exit 1" SIGHUP SIGTERM SIGINT

trap "rm -f $temp" EXIT

Usage_full()

{

	echo "Usage: opascpall [-p] [-r] [-f hostfile] [-h 'hosts'] [-u user]" >&2

	echo "                    source_file ... dest_file" >&2

	echo "       opascpall -t [-p] [-f hostfile] [-h 'hosts'] [-u user] " >&2

	echo "                    [source_dir [dest_dir]]" >&2

	echo "              or" >&2

	echo "       opascpall --help" >&2

	echo "   --help - produce full help text" >&2

	echo "   -p - perform copy in parallel on all hosts" >&2

	echo "   -r - recursive copy of directories" >&2

	echo "   -t - optimized recursive copy of directories using tar" >&2

	echo "        if dest_dir omitted, defaults to current directory name" >&2

	echo "        if source_dir and dest_dir omitted, both default to current directory" >&2

	echo "   -h hosts - list of hosts to copy to" >&2

	echo "   -f hostfile - file with hosts in cluster, default is $CONFIG_DIR/opa/hosts" >&2

	echo "   -u user - user to perform copy to, default is current user code" >&2

	echo "   source_file - list of source files to copy" >&2

	echo "   source_dir - source directory to copy, if omitted . is used" >&2

	echo "   dest_file - destination for copy." >&2

	echo "        If more than 1 source file, this must be a directory" >&2

	echo "   dest_dir - destination for copy.  If omitted current directory name is used" >&2

	echo " Environment:" >&2

	echo "   HOSTS - list of hosts, used if -h option not supplied" >&2

	echo "   HOSTS_FILE - file containing list of hosts, used in absence of -f and -h" >&2

	echo "   FF_MAX_PARALLEL - when -p option is used, maximum concurrent operations" >&2

	echo "example:">&2

	echo "   opascpall MPI-PMB /root/MPI-PMB" >&2

	echo "   opascpall -t -p /usr/src/opa/mpi_apps /usr/src/opa/mpi_apps" >&2

	echo "   opascpall a b c /root/tools/" >&2

	echo "   opascpall -h 'arwen elrond' a b c /root/tools" >&2

	echo "   HOSTS='arwen elrond' opascpall a b c /root/tools" >&2

	echo "user@ syntax cannot be used in filenames specified" >&2

	echo "To copy from hosts in the cluster to this host, use opauploadall" >&2

	exit 0

}

Usage()

{

	echo "Usage: opascpall [-p] [-r] [-f hostfile] source_file ... dest_file" >&2

	echo "       opascpall -t [-p] [-f hostfile] [source_dir [dest_dir]]" >&2

	echo "              or" >&2

	echo "       opascpall --help" >&2

	echo "   --help - produce full help text" >&2

	echo "   -p - perform copy in parallel on all hosts" >&2

	echo "   -r - recursive copy of directories" >&2

	echo "   -t - optimized recursive copy of directories using tar" >&2

	echo "        if dest_dir omitted, defaults to current directory name" >&2

	echo "        if source_dir and dest_dir omitted, both default to current directory" >&2

	echo "   -f hostfile - file with hosts in cluster, default is $CONFIG_DIR/opa/hosts" >&2

	echo "   source_file - list of source files to copy" >&2

	echo "   source_dir - source directory to copy, if omitted . is used" >&2

	echo "   dest_file - destination for copy." >&2

	echo "        If more than 1 source file, this must be a directory" >&2

	echo "   dest_dir - destination for copy.  If omitted current directory name is used" >&2

	echo "example:">&2

	echo "   opascpall MPI-PMB /root/MPI-PMB" >&2

	echo "   opascpall -t -p /usr/src/opa/mpi_apps /usr/src/opa/mpi_apps" >&2

	echo "   opascpall a b c /root/tools/" >&2

	echo "user@ syntax cannot be used in filenames specified" >&2

	echo "To copy from hosts in the cluster to this host, use opauploadall" >&2

	exit 2

}

if [ x"$1" = "x--help" ]

then

	Usage_full

fi

user=`id -u -n`

opts=

topt=n

popt=n

status=0

pids=''

while getopts f:h:u:prt param

do

	case $param in

	h)

		HOSTS="$OPTARG";;

	f)

		HOSTS_FILE="$OPTARG";;

	u)

		user="$OPTARG";;

	p)

		opts="$opts -q"

		popt=y;;

	r)

		opts="$opts -r";;

	t)

		topt=y;;

	?)

		Usage;;

	esac

done

shift $((OPTIND -1))

if [ "$topt" = "n" -a $# -lt 2 ]

then

	Usage

fi

if [ "$topt" = "y" -a $# -gt 2 ]

then

	Usage

fi

check_host_args opascpall

if [ "$topt" = "n" ]

then

	# remove last name from the list

	files=

	dest=

	for file in "$@"

	do

		if [ ! -z "$dest" ]

		then

			files="$files $dest"

		fi

		dest="$file"

	done

	running=0

	for hostname in $HOSTS

	do

	  if [ "$popt" = "y" ]

	        then

		   if [ $running -ge $FF_MAX_PARALLEL ]

		     then

			   wait

			   running=0

		   fi

		   echo "scp $opts $files $user@[$hostname]:$dest"

		   scp $opts $files $user@\[$hostname\]:$dest & 

		   pid=$!

           pids="$pids $pid"

		   running=$(( $running + 1))

	    else

		echo "scp $opts $files $user@[$hostname]:$dest"

		scp $opts $files $user@\[$hostname\]:$dest

		if [ "$?" -ne 0 ]

		  then

		    status=1

	        fi		   

	  fi

	done

#checking exit status for background jobs	

	for pid in $pids

	do

	   wait $pid

   	   if [ "$?" -ne 0 ]

 	      then

	         status=1

	   fi	

	done

else

	if [ $# -lt 2 ]

	then

		destdir=$PWD

	else

		destdir=$2

	fi

	if [ $# -lt 1 ]

	then

		srcdir=$PWD

	else

		srcdir=$1

	fi

	if [ ! -d $srcdir ]

	then

		echo "opascpall: $srcdir: No such directory" >&2

		Usage

	fi

	cd $srcdir

	tar cvfz $temp .

	running=0

	for hostname in $HOSTS

	do

		if [ "$popt" = "y" ]

		then

			if [ $running -ge $FF_MAX_PARALLEL ]

			then

				wait

				running=0

			fi

			(

                echo "scp $opts $temp $user@[$hostname]:$temp"

                scp $opts $temp $user@\[$hostname\]:$temp

                echo "$user@$hostname: mkdir -p $destdir; cd $destdir; tar xfz $temp; rm -f $temp"

                ssh $user@$hostname "mkdir -p $destdir; cd $destdir; tar xfz $temp; rm -f $temp"

			) &

			pid=$!

		   	pids="$pids $pid"

			running=$(( $running + 1))

		else

			echo "scp $opts $temp $user@[$hostname]:$temp"

			scp $opts $temp $user@\[$hostname\]:$temp

			if [ "$?" -ne 0 ]

		  	  then

		    	     status=1

	        	fi		   

			echo "$user@$hostname: mkdir -p $destdir; cd $destdir; tar xfz $temp; rm -f $temp"

			ssh $user@$hostname "mkdir -p $destdir; cd $destdir; tar xfz $temp; rm -f $temp"

			if [ "$?" -ne 0 ]

		  	  then

		    	     status=1

	        	fi		   

		fi

	done

#checking exit status for background jobs	

	for pid in $pids

	do

	   wait $pid

   	   if [ "$?" -ne 0 ]

 	      then

	         status=1

	   fi	

	done

	rm -f $temp

fi

if [ $status -ne 0 ]

  then

     exit 1

fi