#!/bin/bash

password='what a fucking strong pass phrase'

Tdir=$(mktemp -d)
mkdir -p $Tdir/gocrypt/{test{1..6},crypt{1..6}}
cd $Tdir/gocrypt

for i in {1..6};do
    mode=''
    ((i>3)) && mode=--reverse
    printf 'Test nro %d %s ...' $i ${mode#--}
    masterKey[i]=$( TERM=none script -f /dev/null -c "

	gocryptfs --init $mode test$i <<< '$password'

    " | sed -ne '/^Your master key/{N;N;N;s/^.*\r\n\r\n//;
		s/ *\o33[[0-9]\+m//g;s/\r\n *//;p;q};d' )
    stty sane
    gocryptfs -q $mode test$i crypt$i <<<"$password"
    printf '\e[3D mounted.\n'
done

man -Pcat man |
    tee {crypt{1..3},test{4,5,6}}/file >/dev/null

ls -Al test{1,2,3} crypt{4,5,6}

echo "Some SHA1SUMS:"
declare -iA shasums
while read -r sum file;do
     color='' dup=''
     [[ -v shasums[$sum] ]] && color='\e[1m' dup=DUP${shasums[$sum]}
     shasums[$sum]+=1
     printf '%b%-4s %s  %s\e[0m\n' "$color" "$dup" "$sum" "$file"
done < <(sha1sum  */*.diriv */?????????????????????? */file)

for dir in test{1,2,3} crypt{4,5,6}; do
    printf 'Master key %d: %s\n%*s' \
	${dir//[!0-9]} ${masterKey[${dir//[!0-9]}]//-} 14 ''
    gocryptfs-xray -dumpmasterkey $dir/gocryptfs.conf <<<"$password"
done

for dir in crypt*;do
    fusermount -u $dir
done

cd
rm -fR $Tdir