Handle non-normalized index also for executable files

Commit 60cf85a4 corrected the handling of check-in for files where
the index version is non-normalized, i.e., contains CR-LF line endings.
However, it did so only for regular files, not executable files.

Bug: 561438
Change-Id: I372cc990c5efeb00315460f36459c0652d5d1e77
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>

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

@@ -49,6 +49,7 @@
 import static org.junit.Assert.assertSame;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
+import static org.junit.Assume.assumeTrue;
 
 import java.io.File;
 import java.util.Date;
@@ -633,40 +634,63 @@ public void commitOnlyShouldHandleIgnored() throws Exception {
 		}
 	}
 
-	@Test
-	public void commitWithAutoCrlfAndNonNormalizedIndex() throws Exception {
+	private void nonNormalizedIndexTest(boolean executable) throws Exception {
+		String mode = executable ? "100755" : "100644";
 		try (Git git = new Git(db)) {
 			// Commit a file with CR/LF into the index
 			FileBasedConfig config = db.getConfig();
 			config.setString("core", null, "autocrlf", "false");
 			config.save();
-			writeTrashFile("file.txt", "line 1\r\nline 2\r\n");
+			File testFile = writeTrashFile("file.txt", "line 1\r\nline 2\r\n");
+			if (executable) {
+				FS.DETECTED.setExecute(testFile, true);
+			}
 			git.add().addFilepattern("file.txt").call();
 			git.commit().setMessage("Initial").call();
 			assertEquals(
-					"[file.txt, mode:100644, content:line 1\r\nline 2\r\n]",
+					"[file.txt, mode:" + mode
+							+ ", content:line 1\r\nline 2\r\n]",
 					indexState(CONTENT));
 			config.setString("core", null, "autocrlf", "true");
 			config.save();
 			writeTrashFile("file.txt", "line 1\r\nline 1.5\r\nline 2\r\n");
-			writeTrashFile("file2.txt", "new\r\nfile\r\n");
+			testFile = writeTrashFile("file2.txt", "new\r\nfile\r\n");
+			if (executable) {
+				FS.DETECTED.setExecute(testFile, true);
+			}
 			git.add().addFilepattern("file.txt").addFilepattern("file2.txt")
 					.call();
 			git.commit().setMessage("Second").call();
 			assertEquals(
-					"[file.txt, mode:100644, content:line 1\r\nline 1.5\r\nline 2\r\n]"
-							+ "[file2.txt, mode:100644, content:new\nfile\n]",
+					"[file.txt, mode:" + mode
+							+ ", content:line 1\r\nline 1.5\r\nline 2\r\n]"
+							+ "[file2.txt, mode:" + mode
+							+ ", content:new\nfile\n]",
 					indexState(CONTENT));
 			writeTrashFile("file2.txt", "new\r\nfile\r\ncontent\r\n");
 			git.add().addFilepattern("file2.txt").call();
 			git.commit().setMessage("Third").call();
 			assertEquals(
-					"[file.txt, mode:100644, content:line 1\r\nline 1.5\r\nline 2\r\n]"
-							+ "[file2.txt, mode:100644, content:new\nfile\ncontent\n]",
+					"[file.txt, mode:" + mode
+							+ ", content:line 1\r\nline 1.5\r\nline 2\r\n]"
+							+ "[file2.txt, mode:" + mode
+							+ ", content:new\nfile\ncontent\n]",
 					indexState(CONTENT));
 		}
 	}
 
+	@Test
+	public void commitWithAutoCrlfAndNonNormalizedIndex() throws Exception {
+		nonNormalizedIndexTest(false);
+	}
+
+	@Test
+	public void commitExecutableWithAutoCrlfAndNonNormalizedIndex()
+			throws Exception {
+		assumeTrue(FS.DETECTED.supportsExecute());
+		nonNormalizedIndexTest(true);
+	}
+
 	@Test
 	public void testDeletionConflictWithAutoCrlf() throws Exception {
 		try (Git git = new Git(db)) {

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

@@ -45,6 +45,7 @@
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
+import static org.junit.Assume.assumeTrue;
 
 import java.io.File;
 import java.io.IOException;
@@ -54,6 +55,8 @@
 import org.eclipse.jgit.errors.NoWorkTreeException;
 import org.eclipse.jgit.junit.RepositoryTestCase;
 import org.eclipse.jgit.lib.Sets;
+import org.eclipse.jgit.storage.file.FileBasedConfig;
+import org.eclipse.jgit.util.FS;
 import org.junit.Test;
 
 public class StatusCommandTest extends RepositoryTestCase {
@@ -168,4 +171,26 @@ public void testDifferentStatesWithPaths() throws IOException,
 			assertEquals(Sets.of("a", "D/b", "D/D/d"), stat.getModified());
 		}
 	}
+
+	@Test
+	public void testExecutableWithNonNormalizedIndex() throws Exception {
+		assumeTrue(FS.DETECTED.supportsExecute());
+		try (Git git = new Git(db)) {
+			// Commit a file with CR/LF into the index
+			FileBasedConfig config = db.getConfig();
+			config.setString("core", null, "autocrlf", "false");
+			config.save();
+			File testFile = writeTrashFile("file.txt", "line 1\r\nline 2\r\n");
+			FS.DETECTED.setExecute(testFile, true);
+			git.add().addFilepattern("file.txt").call();
+			git.commit().setMessage("Initial").call();
+			assertEquals(
+					"[file.txt, mode:100755, content:line 1\r\nline 2\r\n]",
+					indexState(CONTENT));
+			config.setString("core", null, "autocrlf", "true");
+			config.save();
+			Status status = git.status().call();
+			assertTrue("Expected no differences", status.isClean());
+		}
+	}
 }

org.eclipse.jgit/src/org/eclipse/jgit/treewalk/WorkingTreeIterator.java

@@ -1500,7 +1500,7 @@ private boolean hasCrLfInIndex(DirCacheIterator dirCache) {
 		}
 		// Read blob from index and check for CR/LF-delimited text.
 		DirCacheEntry entry = dirCache.getDirCacheEntry();
-		if (FileMode.REGULAR_FILE.equals(entry.getFileMode())) {
+		if ((entry.getRawMode() & FileMode.TYPE_MASK) == FileMode.TYPE_FILE) {
 			ObjectId blobId = entry.getObjectId();
 			if (entry.getStage() > 0
 					&& entry.getStage() != DirCacheEntry.STAGE_2) {
@@ -1517,7 +1517,10 @@ private boolean hasCrLfInIndex(DirCacheIterator dirCache) {
 						break;
 					}
 					if (entry.getStage() == DirCacheEntry.STAGE_2) {
-						blobId = entry.getObjectId();
+						if ((entry.getRawMode()
+								& FileMode.TYPE_MASK) == FileMode.TYPE_FILE) {
+							blobId = entry.getObjectId();
+						}
 						break;
 					}
 				}