Merge branch 'stable-4.10' into stable-4.11

* stable-4.10:
  Prepare 4.7.3-SNAPSHOT builds
  JGit v4.7.2.201807261330-r
  Delete all loose refs empty directories
  Use java.nio to delete path to get detailed errors
  GC: Remove empty references folders
  Do not ignore path deletion errors

Change-Id: I2b44d862869d4453c57db668fc7c925da591f671
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

1 files changed, 25 insertions, 11 deletions

diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/GcDeleteEmptyRefsFoldersTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/GcDeleteEmptyRefsFoldersTest.java
index 76e1534c59..3caae72fc6 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/GcDeleteEmptyRefsFoldersTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/GcDeleteEmptyRefsFoldersTest.java
@@ -46,6 +46,7 @@ package org.eclipse.jgit.internal.storage.file;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 
+import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
@@ -56,8 +57,8 @@ import org.junit.Before;
 import org.junit.Test;
 
 public class GcDeleteEmptyRefsFoldersTest extends GcTestCase {
-	private static final String REF_FOLDER_01 = "01";
-	private static final String REF_FOLDER_02 = "02";
+	private static final String REF_FOLDER_01 = "A/B/01";
+	private static final String REF_FOLDER_02 = "C/D/02";
 
 	private Path refsDir;
 	private Path heads;
@@ -74,23 +75,36 @@ public class GcDeleteEmptyRefsFoldersTest extends GcTestCase {
 	@Test
 	public void emptyRefFoldersAreDeleted() throws Exception {
 		FileTime fileTime = FileTime.from(Instant.now().minusSeconds(31));
-		Path refDir01 = Files.createDirectory(heads.resolve(REF_FOLDER_01));
-		Path refDir02 = Files.createDirectory(heads.resolve(REF_FOLDER_02));
-		Files.setLastModifiedTime(refDir01, fileTime);
-		Files.setLastModifiedTime(refDir02, fileTime);
+		Path refDir01 = Files.createDirectories(heads.resolve(REF_FOLDER_01));
+		Path refDir02 = Files.createDirectories(heads.resolve(REF_FOLDER_02));
+		setLastModifiedTime(fileTime, heads, REF_FOLDER_01);
+		setLastModifiedTime(fileTime, heads, REF_FOLDER_02);
 		assertTrue(refDir01.toFile().exists());
 		assertTrue(refDir02.toFile().exists());
 		gc.gc();
 
 		assertFalse(refDir01.toFile().exists());
+		assertFalse(refDir01.getParent().toFile().exists());
+		assertFalse(refDir01.getParent().getParent().toFile().exists());
 		assertFalse(refDir02.toFile().exists());
+		assertFalse(refDir02.getParent().toFile().exists());
+		assertFalse(refDir02.getParent().getParent().toFile().exists());
+	}
+
+	private void setLastModifiedTime(FileTime fileTime, Path path, String folder) throws IOException {
+		long numParents = folder.chars().filter(c -> c == '/').count();
+		Path folderPath = path.resolve(folder);
+		for(int folderLevel = 0; folderLevel <= numParents; folderLevel ++ ) {
+			Files.setLastModifiedTime(folderPath, fileTime);
+			folderPath = folderPath.getParent();
+		}
 	}
 
 	@Test
 	public void emptyRefFoldersAreKeptIfTheyAreTooRecent()
 			throws Exception {
-		Path refDir01 = Files.createDirectory(heads.resolve(REF_FOLDER_01));
-		Path refDir02 = Files.createDirectory(heads.resolve(REF_FOLDER_02));
+		Path refDir01 = Files.createDirectories(heads.resolve(REF_FOLDER_01));
+		Path refDir02 = Files.createDirectories(heads.resolve(REF_FOLDER_02));
 		assertTrue(refDir01.toFile().exists());
 		assertTrue(refDir02.toFile().exists());
 		gc.gc();
@@ -101,8 +115,8 @@ public class GcDeleteEmptyRefsFoldersTest extends GcTestCase {
 
 	@Test
 	public void nonEmptyRefsFoldersAreKept() throws Exception {
-		Path refDir01 = Files.createDirectory(heads.resolve(REF_FOLDER_01));
-		Path refDir02 = Files.createDirectory(heads.resolve(REF_FOLDER_02));
+		Path refDir01 = Files.createDirectories(heads.resolve(REF_FOLDER_01));
+		Path refDir02 = Files.createDirectories(heads.resolve(REF_FOLDER_02));
 		Path ref01 = Files.createFile(refDir01.resolve("ref01"));
 		Path ref02 = Files.createFile(refDir01.resolve("ref02"));
 		assertTrue(refDir01.toFile().exists());
@@ -115,4 +129,4 @@ public class GcDeleteEmptyRefsFoldersTest extends GcTestCase {
 		assertTrue(ref01.toFile().exists());
 		assertTrue(ref02.toFile().exists());
 	}
-}
+}
\ No newline at end of file