From 06b183f9b7f902d3e81bea9aa909a044f76d79fb Mon Sep 17 00:00:00 2001
From: Robin Rosenberg <robin.rosenberg@dewire.com>
Date: Sun, 9 Oct 2011 14:47:19 +0200
Subject: [PATCH] Add a method to SystemReader to get the time zone

Change-Id: Ifd31f408ed2c5b7869694b715fea3219e74963ef
---
 .../src/org/eclipse/jgit/junit/MockSystemReader.java  |  6 +++++-
 .../src/org/eclipse/jgit/pgm/Log.java                 |  3 ++-
 .../src/org/eclipse/jgit/util/SystemReader.java       | 11 ++++++++++-
 3 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/MockSystemReader.java b/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/MockSystemReader.java
index b53dce216..3daaea90c 100644
--- a/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/MockSystemReader.java
+++ b/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/MockSystemReader.java
@@ -137,7 +137,11 @@ public long getCurrentTime() {
 
 	@Override
 	public int getTimezone(long when) {
-		return TimeZone.getTimeZone("GMT-03:30").getOffset(when) / (60 * 1000);
+		return getTimeZone().getOffset(when) / (60 * 1000);
 	}
 
+	@Override
+	public TimeZone getTimeZone() {
+		return TimeZone.getTimeZone("GMT-03:30");
+	}
 }
diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Log.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Log.java
index 4a92ea624..6cc009380 100644
--- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Log.java
+++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Log.java
@@ -73,11 +73,12 @@
 import org.eclipse.jgit.notes.NoteMap;
 import org.eclipse.jgit.revwalk.RevCommit;
 import org.eclipse.jgit.revwalk.RevTree;
+import org.eclipse.jgit.util.SystemReader;
 import org.kohsuke.args4j.Option;
 
 @Command(common = true, usage = "usage_viewCommitHistory")
 class Log extends RevWalkTextBuiltin {
-	private final TimeZone myTZ = TimeZone.getDefault();
+	private final TimeZone myTZ = SystemReader.getInstance().getTimeZone();
 
 	private final DateFormat fmt;
 
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/util/SystemReader.java b/org.eclipse.jgit/src/org/eclipse/jgit/util/SystemReader.java
index ced1d90b8..0b72ade50 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/util/SystemReader.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/util/SystemReader.java
@@ -118,7 +118,11 @@ public long getCurrentTime() {
 
 		@Override
 		public int getTimezone(long when) {
-			return TimeZone.getDefault().getOffset(when) / (60 * 1000);
+			return getTimeZone().getOffset(when) / (60 * 1000);
+		}
+
+		public TimeZone getTimeZone() {
+			return TimeZone.getDefault();
 		}
 	};
 
@@ -187,4 +191,9 @@ public static void setInstance(SystemReader newReader) {
 	 * @return the local time zone
 	 */
 	public abstract int getTimezone(long when);
+
+	/**
+	 * @return system time zone, possibly mocked for testing
+	 */
+	public abstract TimeZone getTimeZone();
 }