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[PATCH v2 03/16] object-file: get rid of `the_repository` in `has_loose_object()`

From
Patrick Steinhardt <ps@pks.im>
Date
Jul 17, 2025, 04:56 UTC
Message-ID
<20250717-pks-object-file-wo-the-repository-v2-3-36d2cd6c700e@pks.im>
In-Reply-To
<20250717-pks-object-file-wo-the-repository-v2-0-36d2cd6c700e@pks.im>

We implicitly depend on `the_repository` in `has_loose_object()`. Refactor the function to accept an `odb_source` as input that should be checked for such a loose object.

This refactoring changes semantics of the function to not check the whole object database for such a loose object anymore, but instead we now only check that single source. Existing callers thus need to loop through all sources manually now.

While this change may seem illogical at first, whether or not an object exists in a specific format should be answered by the source using that format. As such, we can eventually convert this into a generic function `odb_source_has_object()` that simply checks whether a given object exists in an object source. And as we will know about the format that any given source uses it allows us to derive whether the object exists in a given format.

This change also makes `has_loose_object_nonlocal()` obsolete. The only caller of this function is adapted so that it skips the primary object source.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
---
 builtin/pack-objects.c | 24 ++++++++++++++++++++----
 object-file.c          | 16 +++++++---------
 object-file.h          |  7 +++----
 3 files changed, 30 insertions(+), 17 deletions(-)
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index 5781dec9808..a44f0ce1c78 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -1703,8 +1703,16 @@ static int want_object_in_pack_mtime(const struct object_id *oid,
 	struct list_head *pos;
 	struct multi_pack_index *m;
 
-	if (!exclude && local && has_loose_object_nonlocal(oid))
-		return 0;
+	if (!exclude && local) {
+		/*
+		 * Note that we start iterating at `sources->next` so that we
+		 * skip the local object source.
+		 */
+		struct odb_source *source = the_repository->objects->sources->next;
+		for (; source; source = source->next)
+			if (has_loose_object(source, oid))
+				return 0;
+	}
 
 	/*
 	 * If we already know the pack object lives in, start checks from that
@@ -3928,7 +3936,14 @@ static void add_cruft_object_entry(const struct object_id *oid, enum object_type
 	} else {
 		if (!want_object_in_pack_mtime(oid, 0, &pack, &offset, mtime))
 			return;
-		if (!pack && type == OBJ_BLOB && !has_loose_object(oid)) {
+		if (!pack && type == OBJ_BLOB) {
+			struct odb_source *source = the_repository->objects->sources;
+			int found = 0;
+
+			for (; !found && source; source = source->next)
+				if (has_loose_object(source, oid))
+					found = 1;
+
 			/*
 			 * If a traversed tree has a missing blob then we want
 			 * to avoid adding that missing object to our pack.
@@ -3942,7 +3957,8 @@ static void add_cruft_object_entry(const struct object_id *oid, enum object_type
 			 * limited to "ensure non-tip blobs which don't exist in
 			 * packs do exist via loose objects". Confused?
 			 */
-			return;
+			if (!found)
+				return;
 		}
 
 		entry = create_object_entry(oid, type, pack_name_hash_fn(name),
diff --git a/object-file.c b/object-file.c
index bc395febc9d..7aecaa3d2a0 100644
--- a/object-file.c
+++ b/object-file.c
@@ -121,14 +121,10 @@ static int check_and_freshen(const struct object_id *oid, int freshen)
 	       check_and_freshen_nonlocal(oid, freshen);
 }
 
-int has_loose_object_nonlocal(const struct object_id *oid)
+int has_loose_object(struct odb_source *source,
+		     const struct object_id *oid)
 {
-	return check_and_freshen_nonlocal(oid, 0);
-}
-
-int has_loose_object(const struct object_id *oid)
-{
-	return check_and_freshen(oid, 0);
+	return check_and_freshen_odb(source, oid, 0);
 }
 
 int format_object_header(char *str, size_t size, enum object_type type,
@@ -1103,8 +1099,10 @@ int force_object_loose(const struct object_id *oid, time_t mtime)
 	int hdrlen;
 	int ret;
 
-	if (has_loose_object(oid))
-		return 0;
+	for (struct odb_source *source = repo->objects->sources; source; source = source->next)
+		if (has_loose_object(source, oid))
+			return 0;
+
 	oi.typep = &type;
 	oi.sizep = &len;
 	oi.contentp = &buf;
diff --git a/object-file.h b/object-file.h
index 222ff2871a1..5b63a05ab51 100644
--- a/object-file.h
+++ b/object-file.h
@@ -45,13 +45,12 @@ const char *odb_loose_path(struct odb_source *source,
 			   const struct object_id *oid);
 
 /*
- * Return true iff an alternate object database has a loose object
+ * Return true iff an object database source has a loose object
  * with the specified name.  This function does not respect replace
  * references.
  */
-int has_loose_object_nonlocal(const struct object_id *);
-
-int has_loose_object(const struct object_id *);
+int has_loose_object(struct odb_source *source,
+		     const struct object_id *oid);
 
 void *map_loose_object(struct repository *r, const struct object_id *oid,
 		       unsigned long *size);
-- 
2.50.1.465.gcb3da1c9e6.dirty
Previous: Patrick SteinhardtNext: Patrick Steinhardt
Message 47 of 60 in “object-file: get rid of `the_repository`”
  1. 00/19 object-file: get rid of `the_repository`Patrick Steinhardt, Jul 9, 2025
  2. 01/19 object-file: fix -Wsign-compare warningsPatrick Steinhardt, Jul 9, 2025
  3. 02/19 object-file: stop using `the_hash_algo`Patrick Steinhardt, Jul 9, 2025
  4. Karthik NayakJul 11, 2025
  5. 03/19 object-file: get rid of `the_repository` in `has_loose_object()`Patrick Steinhardt, Jul 9, 2025
  6. 04/19 object-file: inline `check_and_freshen()` functionsPatrick Steinhardt, Jul 9, 2025
  7. 05/19 object-file: get rid of `the_repository` when freshening objectsPatrick Steinhardt, Jul 9, 2025
  8. Karthik NayakJul 11, 2025
  9. 06/19 object-file: get rid of `the_repository` in `loose_object_info()`Patrick Steinhardt, Jul 9, 2025
  10. 07/19 object-file: get rid of `the_repository` in `finalize_object_file()`Patrick Steinhardt, Jul 9, 2025
  11. 08/19 loose: write loose objects map via their sourcePatrick Steinhardt, Jul 9, 2025
  12. Karthik NayakJul 11, 2025
  13. Patrick SteinhardtJul 15, 2025
  14. 09/19 odb: introduce `odb_write_object()`Patrick Steinhardt, Jul 9, 2025
  15. Toon ClaesJul 10, 2025
  16. Patrick SteinhardtJul 15, 2025
  17. 10/19 object-file: get rid of `the_repository` when writing objectsPatrick Steinhardt, Jul 9, 2025
  18. 11/19 object-file: inline `for_each_loose_file_in_objdir_buf()`Patrick Steinhardt, Jul 9, 2025
  19. 12/19 object-file: remove declaration for `for_each_file_in_obj_subdir()`Patrick Steinhardt, Jul 9, 2025
  20. 13/19 object-file: get rid of `the_repository` in loose object iteratorsPatrick Steinhardt, Jul 9, 2025
  21. Toon ClaesJul 10, 2025
  22. 14/19 object-file: get rid of `the_repository` in `read_loose_object()`Patrick Steinhardt, Jul 9, 2025
  23. 15/19 object-file: get rid of `the_repository` in `force_object_loose()`Patrick Steinhardt, Jul 9, 2025
  24. Toon ClaesJul 10, 2025
  25. Karthik NayakJul 11, 2025
  26. Patrick SteinhardtJul 15, 2025
  27. Toon ClaesJul 15, 2025
  28. 16/19 object-file: get rid of `the_repository` in index-related functionsPatrick Steinhardt, Jul 9, 2025
  29. 17/19 environment: move compression level into repo settingsPatrick Steinhardt, Jul 9, 2025
  30. Phillip WoodJul 9, 2025
  31. Junio C HamanoJul 11, 2025
  32. Patrick SteinhardtJul 15, 2025
  33. Patrick SteinhardtJul 15, 2025
  34. Phillip WoodJul 15, 2025
  35. Patrick SteinhardtJul 15, 2025
  36. Patrick SteinhardtJul 16, 2025
  37. Phillip WoodJul 17, 2025
  38. Junio C HamanoJul 17, 2025
  39. Junio C HamanoJul 15, 2025
  40. Ayush ChandekarJul 17, 2025
  41. 18/19 environment: move object creation mode into repo settingsPatrick Steinhardt, Jul 9, 2025
  42. 19/19 object-file: drop USE_THE_REPOSITORY_VARIABLEPatrick Steinhardt, Jul 9, 2025
  43. 00/16 object-file: get rid of `the_repository`Patrick Steinhardt, Jul 17, 2025
  44. 01/16 object-file: fix -Wsign-compare warningsPatrick Steinhardt, Jul 17, 2025
  45. Jeff KingApr 5, 2026
  46. 02/16 object-file: stop using `the_hash_algo`Patrick Steinhardt, Jul 17, 2025
  47. 03/16 object-file: get rid of `the_repository` in `has_loose_object()`Patrick Steinhardt, Jul 17, 2025
  48. 04/16 object-file: inline `check_and_freshen()` functionsPatrick Steinhardt, Jul 17, 2025
  49. 05/16 object-file: get rid of `the_repository` when freshening objectsPatrick Steinhardt, Jul 17, 2025
  50. 06/16 object-file: get rid of `the_repository` in `loose_object_info()`Patrick Steinhardt, Jul 17, 2025
  51. 07/16 object-file: get rid of `the_repository` in `finalize_object_file()`Patrick Steinhardt, Jul 17, 2025
  52. 08/16 loose: write loose objects map via their sourcePatrick Steinhardt, Jul 17, 2025
  53. 09/16 odb: introduce `odb_write_object()`Patrick Steinhardt, Jul 17, 2025
  54. 10/16 object-file: get rid of `the_repository` when writing objectsPatrick Steinhardt, Jul 17, 2025
  55. 11/16 object-file: inline `for_each_loose_file_in_objdir_buf()`Patrick Steinhardt, Jul 17, 2025
  56. 12/16 object-file: remove declaration for `for_each_file_in_obj_subdir()`Patrick Steinhardt, Jul 17, 2025
  57. 13/16 object-file: get rid of `the_repository` in loose object iteratorsPatrick Steinhardt, Jul 17, 2025
  58. 14/16 object-file: get rid of `the_repository` in `read_loose_object()`Patrick Steinhardt, Jul 17, 2025
  59. 15/16 object-file: get rid of `the_repository` in `force_object_loose()`Patrick Steinhardt, Jul 17, 2025
  60. 16/16 object-file: get rid of `the_repository` in index-related functionsPatrick Steinhardt, Jul 17, 2025

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