From 647fc50b3ee5063a34d12492a8e3d391d848c5af Mon Sep 17 00:00:00 2001
From: woodser <woodser@protonmail.com>
Date: Wed, 15 Jan 2025 09:44:24 -0500
Subject: [PATCH] support --xmrBlockchainPath startup flag for local Monero
 node

---
 .../java/haveno/common/config/Config.java     | 20 ++++++++++++++-----
 .../java/haveno/core/api/XmrLocalNode.java    | 15 ++++++++++----
 2 files changed, 26 insertions(+), 9 deletions(-)

diff --git a/common/src/main/java/haveno/common/config/Config.java b/common/src/main/java/haveno/common/config/Config.java
index 897a795a2b..b162e211b4 100644
--- a/common/src/main/java/haveno/common/config/Config.java
+++ b/common/src/main/java/haveno/common/config/Config.java
@@ -118,6 +118,7 @@ public class Config {
     public static final String BYPASS_MEMPOOL_VALIDATION = "bypassMempoolValidation";
     public static final String PASSWORD_REQUIRED = "passwordRequired";
     public static final String UPDATE_XMR_BINARIES = "updateXmrBinaries";
+    public static final String XMR_BLOCKCHAIN_PATH = "xmrBlockchainPath";
 
     // Default values for certain options
     public static final int UNSPECIFIED_PORT = -1;
@@ -206,6 +207,7 @@ public enum UseTorForXmr {
     public final boolean bypassMempoolValidation;
     public final boolean passwordRequired;
     public final boolean updateXmrBinaries;
+    public final String xmrBlockchainPath;
 
     // Properties derived from options but not exposed as options themselves
     public final File torDir;
@@ -630,6 +632,13 @@ public Config(String defaultAppName, File defaultUserDataDir, String... args) {
                         .ofType(boolean.class)
                         .defaultsTo(true);
 
+        ArgumentAcceptingOptionSpec<String> xmrBlockchainPathOpt =
+                parser.accepts(XMR_BLOCKCHAIN_PATH,
+                        "Path to Monero blockchain when using local Monero node")
+                        .withRequiredArg()
+                        .ofType(String.class)
+                        .defaultsTo("");
+
         try {
             CompositeOptionSet options = new CompositeOptionSet();
 
@@ -743,6 +752,7 @@ public Config(String defaultAppName, File defaultUserDataDir, String... args) {
             this.bypassMempoolValidation = options.valueOf(bypassMempoolValidationOpt);
             this.passwordRequired = options.valueOf(passwordRequiredOpt);
             this.updateXmrBinaries = options.valueOf(updateXmrBinariesOpt);
+            this.xmrBlockchainPath = options.valueOf(xmrBlockchainPathOpt);
         } catch (OptionException ex) {
             throw new ConfigException("problem parsing option '%s': %s",
                     ex.options().get(0),
@@ -752,11 +762,11 @@ public Config(String defaultAppName, File defaultUserDataDir, String... args) {
         }
 
         // Create all appDataDir subdirectories and assign to their respective properties
-        File btcNetworkDir = mkdir(appDataDir, baseCurrencyNetwork.name().toLowerCase());
-        this.keyStorageDir = mkdir(btcNetworkDir, "keys");
-        this.storageDir = mkdir(btcNetworkDir, "db");
-        this.torDir = mkdir(btcNetworkDir, "tor");
-        this.walletDir = mkdir(btcNetworkDir, "wallet");
+        File xmrNetworkDir = mkdir(appDataDir, baseCurrencyNetwork.name().toLowerCase());
+        this.keyStorageDir = mkdir(xmrNetworkDir, "keys");
+        this.storageDir = mkdir(xmrNetworkDir, "db");
+        this.torDir = mkdir(xmrNetworkDir, "tor");
+        this.walletDir = mkdir(xmrNetworkDir, "wallet");
 
         // Assign values to special-case static fields
         APP_DATA_DIR_VALUE = appDataDir;
diff --git a/core/src/main/java/haveno/core/api/XmrLocalNode.java b/core/src/main/java/haveno/core/api/XmrLocalNode.java
index cd5ed266f1..5a424dad38 100644
--- a/core/src/main/java/haveno/core/api/XmrLocalNode.java
+++ b/core/src/main/java/haveno/core/api/XmrLocalNode.java
@@ -166,11 +166,18 @@ public void start(XmrNodeSettings settings) throws IOException {
 
         var args = new ArrayList<>(MONEROD_ARGS);
 
-        var dataDir = settings.getBlockchainPath();
-        if (dataDir == null || dataDir.isEmpty()) {
-            dataDir = MONEROD_DATADIR;
+        var dataDir = "";
+        if (config.xmrBlockchainPath == null || config.xmrBlockchainPath.isEmpty()) {
+            dataDir = settings.getBlockchainPath();
+            if (dataDir == null || dataDir.isEmpty()) {
+                dataDir = MONEROD_DATADIR;
+            }
+        } else {
+            dataDir = config.xmrBlockchainPath; // startup config overrides settings
+        }
+        if (dataDir != null && !dataDir.isEmpty()) {
+            args.add("--data-dir=" + dataDir);
         }
-        if (dataDir != null) args.add("--data-dir=" + dataDir);
 
         var bootstrapUrl = settings.getBootstrapUrl();
         if (bootstrapUrl != null && !bootstrapUrl.isEmpty()) {