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watcher - Fixes cache setup for regtest

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Cache setup in regtest was raising some warnings due to the blocks not being found
This commit is contained in:
Sergi Delgado Segura
2020-06-02 19:49:50 +02:00
parent e1aab63940
commit 837f7d428a
1 changed files with 12 additions and 7 deletions
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19
teos/watcher.py
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@@ -61,14 +61,19 @@ class LocatorCache:
# Not doing so implies store temporary variables in the Watcher and initialising the cache as None.
target_block_hash = last_known_block
for _ in range(self.cache_size):
target_block = block_processor.get_block(target_block_hash)
# In some setups, like regtest, it could be the case that there are no enough previous blocks.
if target_block:
locators = {compute_locator(txid): txid for txid in target_block.get("tx")}
self.cache.update(locators)
self.blocks[target_block_hash] = locators
target_block_hash = target_block.get("previousblockhash")
# In those cases we pull as many as we can.
if target_block_hash:
target_block = block_processor.get_block(target_block_hash)
if not target_block:
break
else:
break
locators = {compute_locator(txid): txid for txid in target_block.get("tx")}
self.cache.update(locators)
self.blocks[target_block_hash] = locators
target_block_hash = target_block.get("previousblockhash")
self.blocks = OrderedDict(reversed((list(self.blocks.items()))))