From a933a60b1a9332e03047c7b226b654cd05a1fe66 Mon Sep 17 00:00:00 2001
From: Konstantin Akimov <knstqq@gmail.com>
Date: Wed, 17 Apr 2024 13:58:27 +0700
Subject: [PATCH] feat: new command line argument -bip147height for
 bitcoin#21373

This command line argument is substitute for -segwitheight so far as dash does
not have a segwit feature
---
 src/chainparams.cpp     | 19 +++++++++++++++++++
 src/chainparamsbase.cpp |  1 +
 2 files changed, 20 insertions(+)

diff --git a/src/chainparams.cpp b/src/chainparams.cpp
index 9f98fd16c6..29c0e20e03 100644
--- a/src/chainparams.cpp
+++ b/src/chainparams.cpp
@@ -861,6 +861,7 @@ public:
         UpdateActivationParametersFromArgs(args);
         UpdateDIP3ParametersFromArgs(args);
         UpdateDIP8ParametersFromArgs(args);
+        UpdateBIP147ParametersFromArgs(args);
         UpdateBudgetParametersFromArgs(args);
 
         genesis = CreateGenesisBlock(1417713337, 1096447, 0x207fffff, 1, 50 * COIN);
@@ -986,6 +987,12 @@ public:
     }
     void UpdateDIP8ParametersFromArgs(const ArgsManager& args);
 
+    void UpdateBIP147Parameters(int nActivationHeight)
+    {
+        consensus.BIP147Height = nActivationHeight;
+    }
+    void UpdateBIP147ParametersFromArgs(const ArgsManager& args);
+
     /**
      * Allows modifying the budget regtest parameters.
      */
@@ -1118,6 +1125,18 @@ void CRegTestParams::UpdateDIP8ParametersFromArgs(const ArgsManager& args)
     UpdateDIP8Parameters(nDIP8ActivationHeight);
 }
 
+void CRegTestParams::UpdateBIP147ParametersFromArgs(const ArgsManager& args)
+{
+    if (!args.IsArgSet("-bip147height")) return;
+    int nBIP147Height;
+    const std::string strParams = args.GetArg("-bip147height", "");
+    if (!ParseInt32(strParams, &nBIP147Height)) {
+        throw std::runtime_error(strprintf("Invalid activation height (%s)", strParams));
+    }
+    LogPrintf("Setting BIP147 parameters to activation=%lld\n", nBIP147Height);
+    UpdateBIP147Parameters(nBIP147Height);
+}
+
 void CRegTestParams::UpdateBudgetParametersFromArgs(const ArgsManager& args)
 {
     if (!args.IsArgSet("-budgetparams")) return;
diff --git a/src/chainparamsbase.cpp b/src/chainparamsbase.cpp
index af4310de08..0ed763e735 100644
--- a/src/chainparamsbase.cpp
+++ b/src/chainparamsbase.cpp
@@ -21,6 +21,7 @@ void SetupChainParamsBaseOptions(ArgsManager& argsman)
     argsman.AddArg("-devnet=<name>", "Use devnet chain with provided name", ArgsManager::ALLOW_ANY, OptionsCategory::CHAINPARAMS);
     argsman.AddArg("-dip3params=<activation>:<enforcement>", "Override DIP3 activation and enforcement heights (regtest-only)", ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::CHAINPARAMS);
     argsman.AddArg("-dip8params=<activation>", "Override DIP8 activation height (regtest-only)", ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::CHAINPARAMS);
+    argsman.AddArg("-bip147height=<activation>", "Override BIP147 activation height (regtest-only)", ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::CHAINPARAMS);
     argsman.AddArg("-highsubsidyblocks=<n>", "The number of blocks with a higher than normal subsidy to mine at the start of a chain. Block after that height will have fixed subsidy base. (default: 0, devnet-only)", ArgsManager::ALLOW_ANY, OptionsCategory::CHAINPARAMS);
     argsman.AddArg("-highsubsidyfactor=<n>", "The factor to multiply the normal block subsidy by while in the highsubsidyblocks window of a chain (default: 1, devnet-only)", ArgsManager::ALLOW_ANY, OptionsCategory::CHAINPARAMS);
     argsman.AddArg("-llmqchainlocks=<quorum name>", "Override the default LLMQ type used for ChainLocks. Allows using ChainLocks with smaller LLMQs. (default: llmq_devnet, devnet-only)", ArgsManager::ALLOW_ANY, OptionsCategory::CHAINPARAMS);