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Merge #17219: wallet: allow transaction without change if keypool is empty

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92bcd70808 [wallet] allow transaction without change if keypool is empty (Sjors Provoost)
709f8685ac [wallet] CreateTransaction: simplify change address check (Sjors Provoost)
5efc25f963 [wallet] translate "Keypool ran out" message (Sjors Provoost)

Pull request description:

  Extracted from #16944

  First this PR simplifies the check when generating a change address, by dropping `CanGetAddresses` and just letting `reservedest.GetReservedDestination` do this check.

  Second, when the keypool is empty, instead of immediately giving up, we create a dummy change address and pass that to coin selection. If we didn't need the change address (e.g. when spending the entire balance), then it's all good. If we did need a change address, we throw the original error.

ACKs for top commit:
  fjahr:
    Code review ACK 92bcd70808
  jonasschnelli:
    utACK 92bcd70808
  achow101:
    ACK 92bcd70808
  meshcollider:
    Code review ACK 92bcd70808

Tree-SHA512: 07b8c8251f57061c58a85ebf0359be63583c23bac7a2c4cefdc14820c0cdebcc90a2bb218e5ede0db11d1e204cda149e056dfd18614642070b3d56efe2735006
This commit is contained in:
Samuel Dobson
2020-04-18 21:37:20 +12:00
parent 895c71e535 92bcd70808
commit bbb1ba1814
4 changed files with 73 additions and 21 deletions
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2
src/wallet/scriptpubkeyman.cpp
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@@ -20,7 +20,7 @@ bool LegacyScriptPubKeyMan::GetNewDestination(const OutputType type, CTxDestinat
// Generate a new key that is added to wallet
CPubKey new_key;
if (!GetKeyFromPool(new_key, type)) {
error = "Error: Keypool ran out, please call keypoolrefill first";
error = _("Error: Keypool ran out, please call keypoolrefill first").translated;
return false;
}
LearnRelatedScripts(new_key, type);