devel-update-revision.sh

#!/bin/bash

source 'support.sh' || { echo "Can not load lib" ; exit 1; }

echo ""
echo "==============================================================="
echo "Updating revision / seed"
echo ""

arg_metod=$1 # "increase" or "restart"

arg_batch=$2 # nothing, or "batch", if batch then we are called from other script so do not act as all is done (e.g. calls sanity checks), the caller should

# load current kernel version
# and other data that might be useful (the old data before we will overwrite it)

echo "Loading current data to start with"
source kernel-build/linux-mempo/env-data.sh
kernel_ver="$kernel_general_version"
echo "We have kernel_ver=$kernel_ver"
# TODO assert correct format

if [[ -z "$arg_metod" ]] ; then arg_metod="increase" ; fi

echo "### Preparing new env"
url_provable_entropy="http://mempo.org/random/blockchain/default/get/"
echo "Getting provable entropy from $url_provable_entropy"
entropy_data=$( wget --tries=1 --timeout=5 -q "$url_provable_entropy" --output-document - ) 
entropy_seed=$( printf '%s\n' "$entropy_data" | head -n 1 | tail -n 1 )
entropy_index=$( printf '%s\n' "$entropy_data" | head -n 2 | tail -n 1 )
entropy_name=$( printf '%s\n' "$entropy_data" | head -n 3 | tail -n 1 )
if [[ -z "$entropy_index" ]] || [[ -z "$entropy_seed" ]] ; then
	echo ""
	echo "@@@@@@ ERROR:      OUPSS. It seems we can not download the entropy. @@@@@@ Enter your own seed!!! @@@@@@"
	echo "  Go to e.g. http://block-explorer.com/ , you see a list of blocks. The highest number is the newest block. "
	echo "  Pick not the newest block but 6 blocks before, click it to see details"
	echo "  And copy the number of block as INDEX and the Hash as SEED."
	echo "  Or even better use local litecoin node once is synchronized"
	echo "Sorry for this problem. Press ENTER to continue"
	read _
else
	echo "Got entropy seed from $entropy_name index $entropy_index:"
	echo "$entropy_seed"
fi

echo ""
echo "This is the seeds we have now, you can review them or edit them."
echo "  (It is best to confirm with locally running litecoin node if you can;"
echo "  though that is not too important as we anyway in binary distributions)"
echo ""

echo "you can EDIT THIS if you want:"
read -e -p "The block INDEX (short nunber): " -i "$entropy_index" entropy_index
read -e -p "The block SEED (long random string, it is the one called Hash of block in blockexplorers, NOT the one called Markle Root!  Must be 64 characters hexdigits lowercase in ranges 0-9 a-f): " -i "$entropy_seed" entropy_seed
echo ""

newenv_date=$(date +'%Y-%m-%d %H:%M:%S')

case $arg_metod in
"restart")
		newenv_rev='001'
		# echo "WARNING now you should not restart revisions as we switched to using the same mempo kernel number eg 0.2"
		# echo "Press ENTER to continue if you are sure this is ok"
		# read _
  ;;
"increase")
	echo "Increase revision"
	DEBIAN_REVISION_NEW_int=$((DEBIAN_REVISION+1)) # increase but as integer e.g. 7
	DEBIAN_REVISION_NEW="$( printf "%03d\n" "$DEBIAN_REVISION_NEW_int" )" # convert back to padded string like 007
	newenv_rev="$DEBIAN_REVISION_NEW"
	echo "Increased revision from $DEBIAN_REVISION to $DEBIAN_REVISION_NEW"
	#read newenv_rev
	;;
*)
	echo "Error, method $arg_metod" ; exit 2
  ;;
esac

f_oldenv="kernel-build/linux-mempo/env-data.sh" # this will be updated
f_newenv_dir="var.update" # temp dir
mkdir -p "$f_newenv_dir"

f_newenv="$f_newenv_dir/env-data.sh"

printf '' > $f_newenv
printf '%s\n' "# place for STATIC settings for release. [autogenerated] ${commit_msg_extra1}" >> $f_newenv
printf '%s\n' "export kernel_general_version=\"$kernel_ver\" # base version (should match the one is sourcecode.list)" >> $f_newenv
printf '%s\n' "export KERNEL_DATE='$newenv_date' # UTC time of mempo version. This is > then max(kernel,grsec,patches) times" >> $f_newenv
printf '%s\n' "export CURRENT_SEED='$entropy_seed' # $entropy_name block $entropy_index (*)" >> $f_newenv
printf '%s\n' "export DEBIAN_REVISION='$newenv_rev' # see README.md how to update it on git tag, on rc and final releases" >> $f_newenv

cp "$f_newenv" "$f_oldenv"
echo "New env is:"
cat "$f_oldenv"
echo ""

if [[ "$arg_batch" != "batch" ]]
then
	bash devel-check-sanity.sh || { echo "It seems sanity checks failed? I will exit then." ; exit 102; }
	echo "Ok that is all. Thanks."
	mywait
fi