From 91e7fe681642a884f61e71b3b6db102b36e63b26 Mon Sep 17 00:00:00 2001
From: Andreas Schildbach <andreas@schildbach.de>
Date: Fri, 7 Nov 2014 13:21:46 +0100
Subject: [PATCH] WalletTool: magic --output value ALL for easier emptying of
 wallets.

---
 tools/src/main/java/org/bitcoinj/tools/WalletTool.java     | 7 ++++++-
 .../main/resources/org/bitcoinj/tools/wallet-tool-help.txt | 4 +++-
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/tools/src/main/java/org/bitcoinj/tools/WalletTool.java b/tools/src/main/java/org/bitcoinj/tools/WalletTool.java
index 6f3b56e82..0252dd160 100644
--- a/tools/src/main/java/org/bitcoinj/tools/WalletTool.java
+++ b/tools/src/main/java/org/bitcoinj/tools/WalletTool.java
@@ -18,6 +18,7 @@
 package org.bitcoinj.tools;
 
 import org.bitcoinj.core.*;
+import org.bitcoinj.core.Wallet.BalanceType;
 import org.bitcoinj.crypto.DeterministicKey;
 import org.bitcoinj.crypto.KeyCrypterException;
 import org.bitcoinj.crypto.MnemonicCode;
@@ -517,7 +518,11 @@ public class WalletTool {
                 }
                 String destination = parts[0];
                 try {
-                    Coin value = parseCoin(parts[1]);
+                    Coin value;
+                    if ("ALL".equalsIgnoreCase(parts[1]))
+                        value = wallet.getBalance(BalanceType.ESTIMATED);
+                    else
+                        value = parseCoin(parts[1]);
                     if (destination.startsWith("0")) {
                         // Treat as a raw public key.
                         byte[] pubKey = new BigInteger(destination, 16).toByteArray();
diff --git a/tools/src/main/resources/org/bitcoinj/tools/wallet-tool-help.txt b/tools/src/main/resources/org/bitcoinj/tools/wallet-tool-help.txt
index 0ba1ede84..662fe1812 100644
--- a/tools/src/main/resources/org/bitcoinj/tools/wallet-tool-help.txt
+++ b/tools/src/main/resources/org/bitcoinj/tools/wallet-tool-help.txt
@@ -27,9 +27,11 @@ Usage: wallet-tool --flags action-name
   send                 Creates and broadcasts a transaction from the given wallet.
                        Requires either --output or --payment-request to be specified.
                        If --output is specified, a transaction is created from the provided output
-                       from this wallet and broadcasted, eg:
+                       from this wallet and broadcasted, e.g.:
                          --output=1GthXFQMktFLWdh5EPNGqbq3H6WdG8zsWj:1.245
                        You can repeat --output=address:value multiple times.
+                       There is a magic value ALL which empties the wallet to that address, e.g.:
+                         --output=1GthXFQMktFLWdh5EPNGqbq3H6WdG8zsWj:ALL
                        If the output destination starts with 04 and is 65 or 33 bytes long it will be
                        treated as a public key instead of an address and the send will use
                        <key> CHECKSIG as the script.