Pruning Store

[Ja7ad]

A Full Node can convert to a Pruned Node by pruning the store and removing old blocks. Pruning the store is a time and resource consuming process and should not be performed while the node is running. We need to add a new command named prune to pactus-daemon to prune an offline node. A public method Prune should be defined in the store. This method iterates over all blocks from the pruning height to the genesis block and prunes them. The pruning height is LastBlockHeight - RetentionBlocks.

https://pips.pactus.org/PIPs/pip-27#pruning-store