Merge branch 'stable-5.13' into stable-6.0

* stable-5.13:
  PackConfig: fix @since tags
  Remove unused API problem filters
  Add support for git config repack.packKeptObjects
  Do not exclude objects in locked packs from bitmap processing

Change-Id: Ifeaa4b4f0c5944d4ecd3042be429833ff72b43ed

4 files changed, 99 insertions, 4 deletions

diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/api/GarbageCollectCommand.java b/org.eclipse.jgit/src/org/eclipse/jgit/api/GarbageCollectCommand.java
index 584d2bc394..ab8cd1812a 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/api/GarbageCollectCommand.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/api/GarbageCollectCommand.java
@@ -63,6 +63,8 @@ public class GarbageCollectCommand extends GitCommand<Properties> {
 
 	private PackConfig pconfig;
 
+	private Boolean packKeptObjects;
+
 	/**
 	 * Constructor for GarbageCollectCommand.
 	 *
@@ -132,6 +134,19 @@ public class GarbageCollectCommand extends GitCommand<Properties> {
 	}
 
 	/**
+	 * Whether to include objects in `.keep` packs when repacking.
+	 *
+	 * @param packKeptObjects
+	 *            whether to include objects in `.keep` files when repacking.
+	 * @return this instance
+	 * @since 5.13.3
+	 */
+	public GarbageCollectCommand setPackKeptObjects(boolean packKeptObjects) {
+		this.packKeptObjects = Boolean.valueOf(packKeptObjects);
+		return this;
+	}
+
+	/**
 	 * Whether to preserve old pack files instead of deleting them.
 	 *
 	 * @since 4.7
@@ -175,7 +190,9 @@ public class GarbageCollectCommand extends GitCommand<Properties> {
 				gc.setProgressMonitor(monitor);
 				if (this.expire != null)
 					gc.setExpire(expire);
-
+				if (this.packKeptObjects != null) {
+					gc.setPackKeptObjects(packKeptObjects.booleanValue());
+				}
 				try {
 					gc.gc().get();
 					return toProperties(gc.getStatistics());
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/GC.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/GC.java
index b261cb162c..799d058b7d 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/GC.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/GC.java
@@ -159,6 +159,8 @@ public class GC {
 
 	private Date packExpire;
 
+	private Boolean packKeptObjects;
+
 	private PackConfig pconfig;
 
 	/**
@@ -837,8 +839,9 @@ public class GC {
 		List<ObjectIdSet> excluded = new LinkedList<>();
 		for (Pack p : repo.getObjectDatabase().getPacks()) {
 			checkCancelled();
-			if (p.shouldBeKept())
+			if (!shouldPackKeptObjects() && p.shouldBeKept()) {
 				excluded.add(p.getIndex());
+			}
 		}
 
 		// Don't exclude tags that are also branch tips
@@ -1306,6 +1309,21 @@ public class GC {
 	}
 
 	/**
+	 * Define whether to include objects in `.keep` files when repacking.
+	 *
+	 * @param packKeptObjects Whether to include objects in `.keep` files when repacking.
+	 */
+	public void setPackKeptObjects(boolean packKeptObjects) {
+		this.packKeptObjects = Boolean.valueOf(packKeptObjects);
+	}
+
+	@SuppressWarnings("boxing")
+	private boolean shouldPackKeptObjects() {
+		return Optional.ofNullable(packKeptObjects)
+				.orElse(pconfig.isPackKeptObjects());
+	}
+
+	/**
 	 * A class holding statistical data for a FileRepository regarding how many
 	 * objects are stored as loose or packed objects
 	 */
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/lib/ConfigConstants.java b/org.eclipse.jgit/src/org/eclipse/jgit/lib/ConfigConstants.java
index 634e3f7f86..605b44bee8 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/lib/ConfigConstants.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/lib/ConfigConstants.java
@@ -59,6 +59,12 @@ public final class ConfigConstants {
 	/** The "gc" section */
 	public static final String CONFIG_GC_SECTION = "gc";
 
+	/**
+	 * The "repack" section
+	 * @since 5.13.3
+	 */
+	public static final String CONFIG_REPACK_SECTION = "repack";
+
 	/** The "pack" section */
 	public static final String CONFIG_PACK_SECTION = "pack";
 
@@ -729,6 +735,13 @@ public final class ConfigConstants {
 	public static final String CONFIG_KEY_WINDOW_MEMORY = "windowmemory";
 
 	/**
+	 * The "repack.packKeptObjects" key
+	 *
+	 * @since 5.13.3
+	 */
+	public static final String CONFIG_KEY_PACK_KEPT_OBJECTS = "packkeptobjects";
+
+	/**
 	 * The "feature" section
 	 *
 	 * @since 5.9
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/storage/pack/PackConfig.java b/org.eclipse.jgit/src/org/eclipse/jgit/storage/pack/PackConfig.java
index 163e475887..ff925dbe8d 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/storage/pack/PackConfig.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/storage/pack/PackConfig.java
@@ -37,8 +37,10 @@ import static org.eclipse.jgit.lib.ConfigConstants.CONFIG_KEY_WAIT_PREVENT_RACYP
 import static org.eclipse.jgit.lib.ConfigConstants.CONFIG_KEY_WINDOW;
 import static org.eclipse.jgit.lib.ConfigConstants.CONFIG_KEY_WINDOW_MEMORY;
 import static org.eclipse.jgit.lib.ConfigConstants.CONFIG_PACK_SECTION;
+import static org.eclipse.jgit.lib.ConfigConstants.CONFIG_KEY_PACK_KEPT_OBJECTS;
 import static org.eclipse.jgit.lib.ConfigConstants.CONFIG_KEY_PRESERVE_OLD_PACKS;
 import static org.eclipse.jgit.lib.ConfigConstants.CONFIG_KEY_PRUNE_PRESERVED;
+import static org.eclipse.jgit.lib.ConfigConstants.CONFIG_REPACK_SECTION;
 
 import java.time.Duration;
 import java.util.concurrent.Executor;
@@ -168,6 +170,16 @@ public class PackConfig {
 	 */
 	public static final boolean DEFAULT_BUILD_BITMAPS = true;
 
+
+	/**
+	 * Default value for including objects in packs locked by .keep file when
+	 * repacking: {@value}
+	 *
+	 * @see #setPackKeptObjects(boolean)
+	 * @since 5.13.3
+	 */
+	public static final boolean DEFAULT_PACK_KEPT_OBJECTS = false;
+
 	/**
 	 * Default count of most recent commits to select for bitmaps. Only applies
 	 * when bitmaps are enabled: {@value}
@@ -284,6 +296,8 @@ public class PackConfig {
 
 	private boolean buildBitmaps = DEFAULT_BUILD_BITMAPS;
 
+	private boolean packKeptObjects = DEFAULT_PACK_KEPT_OBJECTS;
+
 	private int bitmapContiguousCommitCount = DEFAULT_BITMAP_CONTIGUOUS_COMMIT_COUNT;
 
 	private int bitmapRecentCommitCount = DEFAULT_BITMAP_RECENT_COMMIT_COUNT;
@@ -362,6 +376,7 @@ public class PackConfig {
 		this.executor = cfg.executor;
 		this.indexVersion = cfg.indexVersion;
 		this.buildBitmaps = cfg.buildBitmaps;
+		this.packKeptObjects = cfg.packKeptObjects;
 		this.bitmapContiguousCommitCount = cfg.bitmapContiguousCommitCount;
 		this.bitmapRecentCommitCount = cfg.bitmapRecentCommitCount;
 		this.bitmapRecentCommitSpan = cfg.bitmapRecentCommitSpan;
@@ -990,6 +1005,34 @@ public class PackConfig {
 	}
 
 	/**
+	 * Set whether to include objects in `.keep` files when repacking.
+	 *
+	 * <p>
+	 * Default setting: {@value #DEFAULT_PACK_KEPT_OBJECTS}
+	 *
+	 * @param packKeptObjects
+	 *            boolean indicating whether to include objects in `.keep` files
+	 *            when repacking.
+	 * @since 5.13.3
+	 */
+	public void setPackKeptObjects(boolean packKeptObjects) {
+		this.packKeptObjects = packKeptObjects;
+	}
+
+	/**
+	 * True if objects in `.keep` files should be included when repacking.
+	 *
+	 * Default setting: {@value #DEFAULT_PACK_KEPT_OBJECTS}
+	 *
+	 * @return True if objects in `.keep` files should be included when
+	 *         repacking.
+	 * @since 5.13.3
+	 */
+	public boolean isPackKeptObjects() {
+		return packKeptObjects;
+	}
+
+	/**
 	 * Get the count of most recent commits for which to build bitmaps.
 	 *
 	 * Default setting: {@value #DEFAULT_BITMAP_CONTIGUOUS_COMMIT_COUNT}
@@ -1234,8 +1277,12 @@ public class PackConfig {
 		setSinglePack(rc.getBoolean(CONFIG_PACK_SECTION,
 				CONFIG_KEY_SINGLE_PACK,
 				getSinglePack()));
-		setBuildBitmaps(rc.getBoolean(CONFIG_PACK_SECTION,
-				CONFIG_KEY_BUILD_BITMAPS, isBuildBitmaps()));
+		boolean buildBitmapsFromConfig = rc.getBoolean(CONFIG_PACK_SECTION,
+				CONFIG_KEY_BUILD_BITMAPS, isBuildBitmaps());
+		setBuildBitmaps(buildBitmapsFromConfig);
+		setPackKeptObjects(rc.getBoolean(CONFIG_REPACK_SECTION,
+				CONFIG_KEY_PACK_KEPT_OBJECTS,
+				buildBitmapsFromConfig || isPackKeptObjects()));
 		setBitmapContiguousCommitCount(rc.getInt(CONFIG_PACK_SECTION,
 				CONFIG_KEY_BITMAP_CONTIGUOUS_COMMIT_COUNT,
 				getBitmapContiguousCommitCount()));