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[PATCH v2 6/6] pack-objects: create GIT_TEST_PACK_SPARSE

From
Derrick Stolee via GitGitGadget <gitgitgadget@gmail.com>
Date
Nov 29, 2018, 14:24 UTC
Message-ID
<3d394a91367698c1c9bf7a0fccacc56446f39c74.1543501438.git.gitgitgadget@gmail.com>
In-Reply-To
<pull.89.v2.git.gitgitgadget@gmail.com>
From: Derrick Stolee <dstolee@microsoft.com>

Create a test variable GIT_TEST_PACK_SPARSE to enable the sparse object walk algorithm by default during the test suite. Enabling this variable ensures coverage in many interesting cases, such as shallow clones, partial clones, and missing objects.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
---
 builtin/pack-objects.c         | 1 +
 t/README                       | 4 ++++
 t/t5322-pack-objects-sparse.sh | 6 +++---
 3 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index 124b1bafc4..507d381153 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -3331,6 +3331,7 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
 
 	read_replace_refs = 0;
 
+	sparse = git_env_bool("GIT_TEST_PACK_SPARSE", 0);
 	reset_pack_idx_option(&pack_idx_opts);
 	git_config(git_pack_config, NULL);
 
diff --git a/t/README b/t/README
index 28711cc508..8b6dfe1864 100644
--- a/t/README
+++ b/t/README
@@ -342,6 +342,10 @@ GIT_TEST_INDEX_VERSION=<n> exercises the index read/write code path
 for the index version specified.  Can be set to any valid version
 (currently 2, 3, or 4).
 
+GIT_TEST_PACK_SPARSE=<boolean> if enabled will default the pack-objects
+builtin to use the sparse object walk. This can still be overridden by
+the --no-sparse command-line argument.
+
 GIT_TEST_PRELOAD_INDEX=<boolean> exercises the preload-index code path
 by overriding the minimum number of cache entries required per thread.
 
diff --git a/t/t5322-pack-objects-sparse.sh b/t/t5322-pack-objects-sparse.sh
index 8f5699bd91..e8cf41d1c6 100755
--- a/t/t5322-pack-objects-sparse.sh
+++ b/t/t5322-pack-objects-sparse.sh
@@ -36,7 +36,7 @@ test_expect_success 'setup repo' '
 '
 
 test_expect_success 'non-sparse pack-objects' '
-	git pack-objects --stdout --revs <packinput.txt >nonsparse.pack &&
+	git pack-objects --stdout --revs --no-sparse <packinput.txt >nonsparse.pack &&
 	git index-pack -o nonsparse.idx nonsparse.pack &&
 	git show-index <nonsparse.idx | awk "{print \$2}" >nonsparse_objects.txt &&
 	test_cmp expect_objects.txt nonsparse_objects.txt
@@ -70,7 +70,7 @@ test_expect_success 'duplicate a folder from f3 and commit to topic1' '
 '
 
 test_expect_success 'non-sparse pack-objects' '
-	git pack-objects --stdout --revs <packinput.txt >nonsparse.pack &&
+	git pack-objects --stdout --revs --no-sparse <packinput.txt >nonsparse.pack &&
 	git index-pack -o nonsparse.idx nonsparse.pack &&
 	git show-index <nonsparse.idx | awk "{print \$2}" >nonsparse_objects.txt &&
 	test_cmp expect_objects.txt nonsparse_objects.txt
@@ -102,7 +102,7 @@ test_expect_success 'non-sparse pack-objects' '
 		topic1			\
 		topic1^{tree}		\
 		topic1:f3 | sort >expect_objects.txt &&
-	git pack-objects --stdout --revs <packinput.txt >nonsparse.pack &&
+	git pack-objects --stdout --revs --no-sparse <packinput.txt >nonsparse.pack &&
 	git index-pack -o nonsparse.idx nonsparse.pack &&
 	git show-index <nonsparse.idx | awk "{print \$2}" >nonsparse_objects.txt &&
 	test_cmp expect_objects.txt nonsparse_objects.txt
-- 
gitgitgadget
Previous: Derrick Stolee via GitGitGadgetNext: Derrick Stolee via GitGitGadget
Message 16 of 51 in “Add a new "sparse" tree walk algorithm”
  1. 0/5 Add a new "sparse" tree walk algorithmDerrick Stolee via GitGitGadget, Nov 28, 2018
  2. 1/5 revision: add mark_tree_uninteresting_sparseDerrick Stolee via GitGitGadget, Nov 28, 2018
  3. 2/5 list-objects: consume sparse tree walkDerrick Stolee via GitGitGadget, Nov 28, 2018
  4. 3/5 pack-objects: add --sparse optionDerrick Stolee via GitGitGadget, Nov 28, 2018
  5. Stefan BellerNov 28, 2018
  6. Derrick StoleeNov 29, 2018
  7. Junio C HamanoNov 30, 2018
  8. Derrick StoleeNov 30, 2018
  9. 5/5 pack-objects: create pack.useSparse settingDerrick Stolee via GitGitGadget, Nov 28, 2018
  10. 4/5 revision: implement sparse algorithmDerrick Stolee via GitGitGadget, Nov 28, 2018
  11. Ævar Arnfjörð BjarmasonNov 28, 2018
  12. Derrick StoleeNov 29, 2018
  13. 0/6 Add a new "sparse" tree walk algorithmDerrick Stolee via GitGitGadget, Nov 29, 2018
  14. 3/6 pack-objects: add --sparse optionDerrick Stolee via GitGitGadget, Nov 29, 2018
  15. 4/6 revision: implement sparse algorithmDerrick Stolee via GitGitGadget, Nov 29, 2018
  16. 6/6 pack-objects: create GIT_TEST_PACK_SPARSEDerrick Stolee via GitGitGadget, Nov 29, 2018
  17. 5/6 pack-objects: create pack.useSparse settingDerrick Stolee via GitGitGadget, Nov 29, 2018
  18. 2/6 list-objects: consume sparse tree walkDerrick Stolee via GitGitGadget, Nov 29, 2018
  19. 1/6 revision: add mark_tree_uninteresting_sparseDerrick Stolee via GitGitGadget, Nov 29, 2018
  20. 0/6 Add a new "sparse" tree walk algorithmDerrick Stolee via GitGitGadget, Dec 10, 2018
  21. 1/6 revision: add mark_tree_uninteresting_sparseDerrick Stolee via GitGitGadget, Dec 10, 2018
  22. 3/6 pack-objects: add --sparse optionDerrick Stolee via GitGitGadget, Dec 10, 2018
  23. 2/6 list-objects: consume sparse tree walkDerrick Stolee via GitGitGadget, Dec 10, 2018
  24. 4/6 revision: implement sparse algorithmDerrick Stolee via GitGitGadget, Dec 10, 2018
  25. 6/6 pack-objects: create GIT_TEST_PACK_SPARSEDerrick Stolee via GitGitGadget, Dec 10, 2018
  26. 5/6 pack-objects: create pack.useSparse settingDerrick Stolee via GitGitGadget, Dec 10, 2018
  27. 0/6 Add a new "sparse" tree walk algorithmDerrick Stolee via GitGitGadget, Dec 14, 2018
  28. 1/6 revision: add mark_tree_uninteresting_sparseDerrick Stolee via GitGitGadget, Dec 14, 2018
  29. Junio C HamanoJan 11, 2019
  30. Junio C HamanoJan 11, 2019
  31. Derrick StoleeJan 11, 2019
  32. 2/6 list-objects: consume sparse tree walkDerrick Stolee via GitGitGadget, Dec 14, 2018
  33. Junio C HamanoJan 11, 2019
  34. 3/6 pack-objects: add --sparse optionDerrick Stolee via GitGitGadget, Dec 14, 2018
  35. Junio C HamanoJan 11, 2019
  36. Derrick StoleeJan 15, 2019
  37. Junio C HamanoJan 15, 2019
  38. 4/6 revision: implement sparse algorithmDerrick Stolee via GitGitGadget, Dec 14, 2018
  39. Ævar Arnfjörð BjarmasonDec 14, 2018
  40. Derrick StoleeDec 17, 2018
  41. Ævar Arnfjörð BjarmasonDec 17, 2018
  42. Derrick StoleeDec 17, 2018
  43. Junio C HamanoJan 11, 2019
  44. 5/6 pack-objects: create pack.useSparse settingDerrick Stolee via GitGitGadget, Dec 14, 2018
  45. 6/6 pack-objects: create GIT_TEST_PACK_SPARSEDerrick Stolee via GitGitGadget, Dec 14, 2018
  46. 0/5 Add a new "sparse" tree walk algorithmDerrick Stolee via GitGitGadget, Jan 16, 2019
  47. 2/5 list-objects: consume sparse tree walkDerrick Stolee via GitGitGadget, Jan 16, 2019
  48. 3/5 revision: implement sparse algorithmDerrick Stolee via GitGitGadget, Jan 16, 2019
  49. 4/5 pack-objects: create pack.useSparse settingDerrick Stolee via GitGitGadget, Jan 16, 2019
  50. 5/5 pack-objects: create GIT_TEST_PACK_SPARSEDerrick Stolee via GitGitGadget, Jan 16, 2019
  51. 1/5 revision: add mark_tree_uninteresting_sparseDerrick Stolee via GitGitGadget, Jan 16, 2019

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