#!/bin/bash

SRC=$1
TRGET=$2

HEADTREE=75
TAILTREE=1

if ! [[  -d $SRC ]]; then
    echo "$SRC is not a directory"
    exit 1
fi 

if ! [[  -d $TRGET ]]; then
    echo "$TRGET is not a directory"
    exit 1
fi 


TREEFILE=$(mktemp -t treefile)
tree -ha --du "$SRC" >> $TREEFILE
if [ $(cat $TREEFILE | wc -l) -gt $[TAILTREE + HEADTREE] ]; then
	head -${HEADTREE} $TREEFILE
	echo ...
	tail -${TAILTREE} $TREEFILE
	echo Full tree in $TREEFILE
else
	cat $TREEFILE
fi





pushd $SRC

FINDSTART=`date +%s`
find . -type d -exec bash -c "mkdir -p \"${TRGET}{}\"" \;
DIREND=`date +%s`
find . -type f -exec bash -c "ln -h \"{}\" \"${TRGET}{}\"" \;
LNEND=`date +%s`

echo dirtime $((DIREND-FINDSTART))s
echo linktime $((LNEND-DIREND))s
echo alltime $((LNEND-FINDSTART))s