Fix apply patch which did not work with non-ascii characters

Bug: 483943
Change-Id: If28f64053d20ab1bee54245f223e952dc2fe392c
Signed-off-by: XinTong Wang <xintong@ca.ibm.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/RepositoryTestCase.java

@@ -144,10 +144,10 @@ protected void deleteTrashFile(final String name) throws IOException {
 
 	protected static void checkFile(File f, final String checkData)
 			throws IOException {
-		Reader r = new InputStreamReader(new FileInputStream(f), "ISO-8859-1");
+		Reader r = new InputStreamReader(new FileInputStream(f), "UTF-8");
 		try {
-			char[] data = new char[(int) f.length()];
-			if (f.length() !=  r.read(data))
+			char[] data = new char[checkData.length()];
+			if (checkData.length() != r.read(data))
 				throw new IOException("Internal error reading file data from "+f);
 			assertEquals(checkData, new String(data));
 		} finally {

org.eclipse.jgit.test/tst/org/eclipse/jgit/api/ApplyCommandTest.java

@@ -186,6 +186,55 @@ public void testModifyNL1() throws Exception {
 				b.getString(0, b.size(), false));
 	}
 
+	@Test
+	public void testNonASCII() throws Exception {
+		ApplyResult result = init("NonASCII");
+		assertEquals(1, result.getUpdatedFiles().size());
+		assertEquals(new File(db.getWorkTree(), "NonASCII"),
+				result.getUpdatedFiles().get(0));
+		checkFile(new File(db.getWorkTree(), "NonASCII"),
+				b.getString(0, b.size(), false));
+	}
+
+	@Test
+	public void testNonASCII2() throws Exception {
+		ApplyResult result = init("NonASCII2");
+		assertEquals(1, result.getUpdatedFiles().size());
+		assertEquals(new File(db.getWorkTree(), "NonASCII2"),
+				result.getUpdatedFiles().get(0));
+		checkFile(new File(db.getWorkTree(), "NonASCII2"),
+				b.getString(0, b.size(), false));
+	}
+
+	@Test
+	public void testNonASCIIAdd() throws Exception {
+		ApplyResult result = init("NonASCIIAdd");
+		assertEquals(1, result.getUpdatedFiles().size());
+		assertEquals(new File(db.getWorkTree(), "NonASCIIAdd"),
+				result.getUpdatedFiles().get(0));
+		checkFile(new File(db.getWorkTree(), "NonASCIIAdd"),
+				b.getString(0, b.size(), false));
+	}
+
+	@Test
+	public void testNonASCIIAdd2() throws Exception {
+		ApplyResult result = init("NonASCIIAdd2", false, true);
+		assertEquals(1, result.getUpdatedFiles().size());
+		assertEquals(new File(db.getWorkTree(), "NonASCIIAdd2"),
+				result.getUpdatedFiles().get(0));
+		checkFile(new File(db.getWorkTree(), "NonASCIIAdd2"),
+				b.getString(0, b.size(), false));
+	}
+
+	@Test
+	public void testNonASCIIDel() throws Exception {
+		ApplyResult result = init("NonASCIIDel", true, false);
+		assertEquals(1, result.getUpdatedFiles().size());
+		assertEquals(new File(db.getWorkTree(), "NonASCIIDel"),
+				result.getUpdatedFiles().get(0));
+		assertFalse(new File(db.getWorkTree(), "NonASCIIDel").exists());
+	}
+
 	private static byte[] readFile(final String patchFile) throws IOException {
 		final InputStream in = getTestResource(patchFile);
 		if (in == null) {

org.eclipse.jgit/src/org/eclipse/jgit/api/ApplyCommand.java

@@ -201,10 +201,12 @@ private void apply(File f, FileHeader fh)
 			oldLines.add(rt.getString(i));
 		List<String> newLines = new ArrayList<String>(oldLines);
 		for (HunkHeader hh : fh.getHunks()) {
-			StringBuilder hunk = new StringBuilder();
-			for (int j = hh.getStartOffset(); j < hh.getEndOffset(); j++)
-				hunk.append((char) hh.getBuffer()[j]);
-			RawText hrt = new RawText(hunk.toString().getBytes());
+
+			byte[] b = new byte[hh.getEndOffset() - hh.getStartOffset()];
+			System.arraycopy(hh.getBuffer(), hh.getStartOffset(), b, 0,
+					b.length);
+			RawText hrt = new RawText(b);
+
 			List<String> hunkLines = new ArrayList<String>(hrt.size());
 			for (int i = 0; i < hrt.size(); i++)
 				hunkLines.add(hrt.getString(i));