From cb0472f72bb9134c5177ff825ae20c7f2ef3ed11 Mon Sep 17 00:00:00 2001
From: Kui LIU <brucekuiliu@gmail.com>
Date: Fri, 22 Dec 2017 14:08:46 +0100
Subject: [PATCH] Fix the bug of reading diff entries.

---
 .../java/edu/lu/uni/serval/diffentry/DiffEntryReader.java | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/main/java/edu/lu/uni/serval/diffentry/DiffEntryReader.java b/src/main/java/edu/lu/uni/serval/diffentry/DiffEntryReader.java
index 93753a1..f255214 100644
--- a/src/main/java/edu/lu/uni/serval/diffentry/DiffEntryReader.java
+++ b/src/main/java/edu/lu/uni/serval/diffentry/DiffEntryReader.java
@@ -23,9 +23,11 @@ public class DiffEntryReader {
 			int startLine2 = 0;
 			int range2 = 0;
 			StringBuilder hunk = new StringBuilder();
+			boolean sourceCode = false;
 			
 			while ((line = reader.readLine()) != null) {
 				if (RegExp.filterSignal(line.trim())) {
+					sourceCode = true;
 					if (hunk.length() > 0) {
 						if ((range < 7 && range2 < 7) || range == 0 || range2 == 0) { // filter out big hunks
 							DiffEntryHunk diffEntryHunk = new DiffEntryHunk(startLine, startLine2, range, range2);
@@ -51,7 +53,7 @@ public class DiffEntryReader {
 					}
 					continue;
 				}
-				hunk.append(line + "\n");
+				if (sourceCode) hunk.append(line + "\n");
 			}
 
 			if ((range < 7 && range2 < 7) || range == 0 || range2 == 0) { // filter out big hunks
@@ -95,9 +97,11 @@ public class DiffEntryReader {
 			int startLine2 = 0;
 			int range2 = 0;
 			StringBuilder hunk = new StringBuilder();
+			boolean sourceCode = false;
 			
 			while ((line = reader.readLine()) != null) {
 				if (RegExp.filterSignal(line.trim())) {
+					sourceCode = true;
 					if (hunk.length() > 0) {
 						if (startLine > 0) {
 							DiffEntryHunk diffEntryHunk = new DiffEntryHunk(startLine, startLine2, range, range2);
@@ -123,7 +127,7 @@ public class DiffEntryReader {
 					}
 					continue;
 				}
-				hunk.append(line + "\n");
+				if (sourceCode) hunk.append(line + "\n");
 			}
 
 			if (startLine > 0) {