diff options
| -rwxr-xr-x | enter | 69 |
1 files changed, 60 insertions, 9 deletions
@@ -1,32 +1,83 @@ #!/bin/bash +# By default we enter from the latest block +# We can alter this by changing this value entrance="$(cat $ZLATEST)" + +# Start of tests #entrance="QmW5WVXCJfhb4peHG6cbEdamC24vZzMX2Vz386vpENh38U" #entrance="QmNjQq7GkuXGF8kFT1z2Mv3i4JhY7sBXVUmHDiR1zkQjoE" #entrance="QmbFMke1KXqnYyBBWxB74N4c5SBnJMVAiMNRcGu6x1AwQH" -end="QmbFMke1KXqnYyBBWxB74N4c5SBnJMVAiMNRcGu6x1AwQH" -previous="$entrance" +# End of tests + +# We assign the IPFS CIDv0 of an empty file as this is used +# as our GENESIS block, hence the "seed" that the tree grows +# from. +seed="$(cat $ZGENESIS)" + +# We assume that we found the entrance inside a block, hence +# ZBLOCK is labeled as previous +zblock="$entrance" + +# The loop +# We break the loop from inside the loop while true do - if [ ! -v $previous ] + # Check if $zblock exists as variable + if [ ! -v $zblock ] then - if [ "$previous" != "$end" ] + # Check if it is not our seed cause if it is we skip this part + if [ "$zblock" != "$seed" ] then - ipfs cat $previous | json2bash > tmp-zblock + # Announce to stdout which ZBLOCK is being read at the moment + echo "Examining $zblock" + + # We create files named after each ZBLOCK IPFS CID for later + # reference. Files are empty. + touch $ZBLOCKDIR/$zblock + + # We concatenate the zblock's contents, pipe them through filter + # json2bash and output them to tmp-file + ipfs cat $zblock | json2bash > tmp-zblock + + # Supposingly you are on a safe environment and you only have + # access to your chain, I would consider mild secure to source + # the files into your bash. + # File an issue/pull request if you think it can be done better!! source tmp-zblock + + # Same as above applies to BLOCK and DATA subparts of each ZBLOCK + # BLOCKS ipfs cat $block | json2bash > tmp-block source tmp-block + touch $BLOCKDIR/$block + + # DATA (but we don't source it's stuff) + # Only print to stdout + ipfs cat $data + touch $DATADIR/$data + + # Now, since we sourced the BLOCK to our terminal, we can search + # for $previous variable. In case we don't find one, we exit with + # code 3 if [ -v $previous ] then - echo "$block has no previous zblock" + echo "Block $block has no previous zblock" exit 3 + + # Otherwise, we inform of the sequence else - echo "$block after $previous" + echo "$zblock after $previous" + zblock=$previous fi - elif [ "$previous" == "$end" ] + + # Now check if it is equal to the seed + # which apparently means we reached the seed. + elif [ "$zblock" == "$seed" ] then - echo "$previous is GENESIS block" + echo "$zblock is GENESIS block" exit 0 fi + # And finally, if nothing is there exit with error else echo "Check not passed... No previous IPFS CID" exit 1 |