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Merge #16899: UTXO snapshot creation (dumptxoutset)

Browse Source 
92b2f5306b test: add dumptxoutset RPC test (James O'Beirne)
c1ccbc3dde devtools: add utxo_snapshot.sh (James O'Beirne)
57cf74c991 rpc: add dumptxoutset (James O'Beirne)
92fafb3a7d coinstats: add coins_count (James O'Beirne)
707fde7b9b add unused SnapshotMetadata class (James O'Beirne)

Pull request description:

  This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11):

  Parent PR: #15606
  Issue: #15605
  Specification: https://github.com/jamesob/assumeutxo-docs/tree/master/proposal

  ---

  This changeset defines the serialization format for UTXO snapshots and adds an RPC command for creating them, `dumptxoutset`. It also adds a convenience script for generating and verifying snapshots at a certain height, since that requires doing a hacky rewind of the chain via `invalidateblock`.

  All of this is unused at the moment.

ACKs for top commit:
  laanwj:
    ACK 92b2f5306b

Tree-SHA512: 200dff87767f157d627e99506ec543465d9329860a6cd49363081619c437163a640a46d008faa92b1f44fd403bfc7a7c9e851c658b5a4849efa9a34ca976bf31
This commit is contained in:
Wladimir J. van der Laan
2019-11-05 19:38:45 +01:00
parent d35b12107e 92b2f5306b
commit b05b28183c
9 changed files with 269 additions and 9 deletions
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test/functional/test_runner.py
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@@ -191,6 +191,7 @@ BASE_SCRIPTS = [
'rpc_uptime.py',
'wallet_resendwallettransactions.py',
'wallet_fallbackfee.py',
'rpc_dumptxoutset.py',
'feature_minchainwork.py',
'rpc_getblockstats.py',
'wallet_create_tx.py',