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[PATCH v3 3/7] refs: peeling non-the_repository iterators is BUG

From
JTJonathan Tan <jonathantanmy@google.com>
Date
Sep 29, 2021, 23:06 UTC
Message-ID
<e7fb60b7e7d73ecaee9867172fb919f4c877be38.1632956589.git.jonathantanmy@google.com>
In-Reply-To
<cover.1632956589.git.jonathantanmy@google.com>

There is currently no support for peeling the current ref of an iterator iterating over a non-the_repository ref store, and none is needed. Thus, for now, BUG() if that happens.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
---
 refs/files-backend.c  |  5 +++--
 refs/packed-backend.c |  3 +++
 refs/ref-cache.c      | 10 ++++++++++
 refs/ref-cache.h      |  1 +
 4 files changed, 17 insertions(+), 2 deletions(-)
diff --git a/refs/files-backend.c b/refs/files-backend.c
index 3f213d24b0..8ee6ac2103 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -833,7 +833,7 @@ static struct ref_iterator *files_ref_iterator_begin(
 	 */
 
 	loose_iter = cache_ref_iterator_begin(get_loose_ref_cache(refs),
-					      prefix, 1);
+					      prefix, ref_store->repo, 1);
 
 	/*
 	 * The packed-refs file might contain broken references, for
@@ -1165,7 +1165,8 @@ static int files_pack_refs(struct ref_store *ref_store, unsigned int flags)
 
 	packed_refs_lock(refs->packed_ref_store, LOCK_DIE_ON_ERROR, &err);
 
-	iter = cache_ref_iterator_begin(get_loose_ref_cache(refs), NULL, 0);
+	iter = cache_ref_iterator_begin(get_loose_ref_cache(refs), NULL,
+					the_repository, 0);
 	while ((ok = ref_iterator_advance(iter)) == ITER_OK) {
 		/*
 		 * If the loose reference can be packed, add an entry
diff --git a/refs/packed-backend.c b/refs/packed-backend.c
index 63f78bbaea..2161218719 100644
--- a/refs/packed-backend.c
+++ b/refs/packed-backend.c
@@ -886,6 +886,9 @@ static int packed_ref_iterator_peel(struct ref_iterator *ref_iterator,
 	struct packed_ref_iterator *iter =
 		(struct packed_ref_iterator *)ref_iterator;
 
+	if (iter->repo != the_repository)
+		BUG("peeling for non-the_repository is not supported");
+
 	if ((iter->base.flags & REF_KNOWS_PEELED)) {
 		oidcpy(peeled, &iter->peeled);
 		return is_null_oid(&iter->peeled) ? -1 : 0;
diff --git a/refs/ref-cache.c b/refs/ref-cache.c
index 49d732f6db..97a6ac349e 100644
--- a/refs/ref-cache.c
+++ b/refs/ref-cache.c
@@ -435,6 +435,8 @@ struct cache_ref_iterator {
 	 * on from there.)
 	 */
 	struct cache_ref_iterator_level *levels;
+
+	struct repository *repo;
 };
 
 static int cache_ref_iterator_advance(struct ref_iterator *ref_iterator)
@@ -491,6 +493,11 @@ static int cache_ref_iterator_advance(struct ref_iterator *ref_iterator)
 static int cache_ref_iterator_peel(struct ref_iterator *ref_iterator,
 				   struct object_id *peeled)
 {
+	struct cache_ref_iterator *iter =
+		(struct cache_ref_iterator *)ref_iterator;
+
+	if (iter->repo != the_repository)
+		BUG("peeling for non-the_repository is not supported");
 	return peel_object(ref_iterator->oid, peeled) ? -1 : 0;
 }
 
@@ -513,6 +520,7 @@ static struct ref_iterator_vtable cache_ref_iterator_vtable = {
 
 struct ref_iterator *cache_ref_iterator_begin(struct ref_cache *cache,
 					      const char *prefix,
+					      struct repository *repo,
 					      int prime_dir)
 {
 	struct ref_dir *dir;
@@ -547,5 +555,7 @@ struct ref_iterator *cache_ref_iterator_begin(struct ref_cache *cache,
 		level->prefix_state = PREFIX_CONTAINS_DIR;
 	}
 
+	iter->repo = repo;
+
 	return ref_iterator;
 }
diff --git a/refs/ref-cache.h b/refs/ref-cache.h
index 3bfb89d2b3..7877bf86ed 100644
--- a/refs/ref-cache.h
+++ b/refs/ref-cache.h
@@ -238,6 +238,7 @@ struct ref_entry *find_ref_entry(struct ref_dir *dir, const char *refname);
  */
 struct ref_iterator *cache_ref_iterator_begin(struct ref_cache *cache,
 					      const char *prefix,
+					      struct repository *repo,
 					      int prime_dir);
 
 #endif /* REFS_REF_CACHE_H */
-- 
2.33.0.685.g46640cef36-goog
Previous: Jonathan TanNext: Jonathan Tan
Message 43 of 65 in “No more adding submodule ODB as alternate”
  1. 0/9 No more adding submodule ODB as alternateJonathan Tan, Sep 21, 2021
  2. 1/9 refs: make _advance() check struct repo, not flagJonathan Tan, Sep 21, 2021
  3. Junio C HamanoSep 23, 2021
  4. Jonathan TanSep 24, 2021
  5. Junio C HamanoSep 24, 2021
  6. Jeff KingSep 24, 2021
  7. Jonathan TanSep 24, 2021
  8. 2/9 refs: add repo paramater to _iterator_peel()Jonathan Tan, Sep 21, 2021
  9. 3/9 refs iterator: support non-the_repository advanceJonathan Tan, Sep 21, 2021
  10. 4/9 refs: teach refs_for_each_ref() arbitrary reposJonathan Tan, Sep 21, 2021
  11. 5/9 merge-{ort,recursive}: remove add_submodule_odb()Jonathan Tan, Sep 21, 2021
  12. Elijah NewrenSep 28, 2021
  13. 6/9 object-file: only register submodule ODB if neededJonathan Tan, Sep 21, 2021
  14. 7/9 submodule: pass repo to check_has_commit()Jonathan Tan, Sep 21, 2021
  15. 8/9 refs: change refs_for_each_ref_in() to take repoJonathan Tan, Sep 21, 2021
  16. 9/9 submodule: trace adding submodule ODB as alternateJonathan Tan, Sep 21, 2021
  17. Junio C HamanoSep 23, 2021
  18. 0/9 No more adding submodule ODB as alternateJonathan Tan, Sep 28, 2021
  19. 1/9 refs: plumb repo param in begin-iterator functionsJonathan Tan, Sep 28, 2021
  20. Junio C HamanoSep 28, 2021
  21. 2/9 refs: teach arbitrary repo support to iteratorsJonathan Tan, Sep 28, 2021
  22. Junio C HamanoSep 28, 2021
  23. Jonathan TanSep 29, 2021
  24. 3/9 refs: peeling non-the_repository iterators is BUGJonathan Tan, Sep 28, 2021
  25. 4/9 refs: teach refs_for_each_ref() arbitrary reposJonathan Tan, Sep 28, 2021
  26. Junio C HamanoSep 28, 2021
  27. 5/9 merge-{ort,recursive}: remove add_submodule_odb()Jonathan Tan, Sep 28, 2021
  28. 6/9 object-file: only register submodule ODB if neededJonathan Tan, Sep 28, 2021
  29. 7/9 submodule: pass repo to check_has_commit()Jonathan Tan, Sep 28, 2021
  30. 8/9 refs: change refs_for_each_ref_in() to take repoJonathan Tan, Sep 28, 2021
  31. 9/9 submodule: trace adding submodule ODB as alternateJonathan Tan, Sep 28, 2021
  32. 0/7 No more adding submodule ODB as alternateJonathan Tan, Sep 29, 2021
  33. 1/7 refs: plumb repo into ref storesJonathan Tan, Sep 29, 2021
  34. fixup! refs: plumb repo into ref storesCarlo Marcelo Arenas Belón, Sep 30, 2021
  35. fixup! refs: plumb repo into ref storesGlen Choo, Oct 6, 2021
  36. Jonathan TanOct 8, 2021
  37. Jonathan TanOct 8, 2021
  38. Josh SteadmonOct 7, 2021
  39. Jonathan TanOct 8, 2021
  40. 2/7 refs: teach arbitrary repo support to iteratorsJonathan Tan, Sep 29, 2021
  41. Glen ChooOct 7, 2021
  42. Jonathan TanOct 8, 2021
  43. 3/7 refs: peeling non-the_repository iterators is BUGJonathan Tan, Sep 29, 2021
  44. 5/7 object-file: only register submodule ODB if neededJonathan Tan, Sep 29, 2021
  45. Josh SteadmonOct 7, 2021
  46. Jonathan TanOct 8, 2021
  47. 4/7 merge-{ort,recursive}: remove add_submodule_odb()Jonathan Tan, Sep 29, 2021
  48. Josh SteadmonOct 7, 2021
  49. Jonathan TanOct 8, 2021
  50. 6/7 submodule: pass repo to check_has_commit()Jonathan Tan, Sep 29, 2021
  51. 7/7 submodule: trace adding submodule ODB as alternateJonathan Tan, Sep 29, 2021
  52. Josh SteadmonOct 7, 2021
  53. Jonathan TanOct 8, 2021
  54. Josh SteadmonOct 7, 2021
  55. 0/7 No more adding submodule ODB as alternateJonathan Tan, Oct 8, 2021
  56. 1/7 refs: plumb repo into ref storesJonathan Tan, Oct 8, 2021
  57. 2/7 refs: teach arbitrary repo support to iteratorsJonathan Tan, Oct 8, 2021
  58. 3/7 refs: peeling non-the_repository iterators is BUGJonathan Tan, Oct 8, 2021
  59. 4/7 merge-{ort,recursive}: remove add_submodule_odb()Jonathan Tan, Oct 8, 2021
  60. 5/7 object-file: only register submodule ODB if neededJonathan Tan, Oct 8, 2021
  61. 6/7 submodule: pass repo to check_has_commit()Jonathan Tan, Oct 8, 2021
  62. 7/7 submodule: trace adding submodule ODB as alternateJonathan Tan, Oct 8, 2021
  63. Glen ChooOct 12, 2021
  64. Josh SteadmonOct 12, 2021
  65. Junio C HamanoOct 12, 2021

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