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#!/bin/bash
#
# wrapper for ps2client to do complete MC backup
# 
# USAGE: mc-backup.sh [dest] [src-mc]
#  [dest]   is local destination directory. Default is "mc0.YYYY-MM-DD.HHMM"
#  [src-mc] is memory card to backup. Default is "mc0:"
#
#  no warranty... unlikely to break anything,
#  no copyright... most people can whip this up in their sleep
#
PS2C="ps2client"
DATE="date"
AWK="awk"
Fcnt=0
Dcnt=0

# make sure we have what we need
for X in $PS2C $AWK $DATE ; do
	Z=`$X --version`
	if [ $? -eq 127 ]; then
		echo "### ERROR: '$X' not found"
		exit -1
	fi
done

DoDir() {	# $1 mc dir to process
	PS2Cmd="$PS2C dir $1"
	T=`$PS2Cmd`
	if [ $? -ne 0 ]; then 
		echo -n "ERROR: '$PS2Cmd' returned:   "
		$PS2Cmd
		echo "PS2 probably need to be reset by running 'ps2client reset'"
		exit -1
	fi
	IFS=$'\x0A'$'\x0D'
	G=`echo "$T" | awk ' \$1 ~ /^-r/ { A=substr($0,45); print A } '`
	for F in `echo "$G"` ; do 
		Z=`$PS2C copyfrom "$1/$F" "$F"`
		if [ $? -ne 0 ]; then echo "ERROR on copy."; fi
		# change to ' echo "$Z" ' to get long output
		echo $Z
		let Fcnt+=1
	done
	unset IFS
	for D in `$PS2Cmd | awk ' \$1 ~ /^d/ && \$5 != "." && \$5 != ".." { print $5 } '` ; do
		echo "INFO: Descending into '$D' "
		Descend $D $1
		let Dcnt+=1
	done
}

Descend () {	# $1 dir name, $2 current dir
	Z=`mkdir $1 2>&1`
	if [ $? -ne 0 ]; then echo "ERROR: $Z"; exit -1; fi
	cd $1
	DoDir "$2/$1"
	cd ..
}
	
SRC="mc0:"			# default source (mc) ($2)
DEST="$SRC."`$DATE "+%F.%k%M"`	# default dest (local dir) ($1)
if [ -n "$1" ] ; then  DEST=$1; fi
if [ -n "$2" ] ; then  SRC=$2; fi
echo "Backing up '$SRC' to '$DEST'"

Z=`mkdir $DEST 2>&1`
if [ $? -ne 0 ]; then echo "ERROR: $Z"; exit -1; fi
cd $DEST
DoDir $SRC
echo
echo "SUMMARY:  $Dcnt directories, $Fcnt files  processed."