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[PATCH v3 00/15] Die commit->util, die!

From
Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Date
May 19, 2018, 05:28 UTC
Message-ID
<20180519052831.12603-1-pclouds@gmail.com>
In-Reply-To
<20180513055208.17952-1-pclouds@gmail.com>
v3 fixes Junio's comments on v2:
diff --git a/builtin/fast-export.c b/builtin/fast-export.c
index b08e5ea0e3..5aaf5c8e59 100644
--- a/builtin/fast-export.c
+++ b/builtin/fast-export.c
@@ -592,7 +592,7 @@ static void handle_commit(struct commit *commit, struct rev_info *rev,
 		if (!S_ISGITLINK(diff_queued_diff.queue[i]->two->mode))
 			export_blob(&diff_queued_diff.queue[i]->two->oid);
 
-	refname = *revision_sources_peek(&revision_sources, commit);
+	refname = *revision_sources_at(&revision_sources, commit);
 	if (anonymize) {
 		refname = anonymize_refname(refname);
 		anonymize_ident_line(&committer, &committer_end);
diff --git a/builtin/show-branch.c b/builtin/show-branch.c
index 29d15d16d2..f2e985c00a 100644
--- a/builtin/show-branch.c
+++ b/builtin/show-branch.c
@@ -22,6 +22,11 @@ static int showbranch_use_color = -1;
 
 static struct argv_array default_args = ARGV_ARRAY_INIT;
 
+/*
+ * TODO: convert this use of commit->object.flags to commit-slab
+ * instead to store a pointer to ref name directly. Then use the same
+ * UNINTERESTING definition from revision.h here.
+ */
 #define UNINTERESTING	01
 
 #define REV_SHIFT	 2
diff --git a/commit-slab-hdr.h b/commit-slab-decl.h
similarity index 100%
rename from commit-slab-hdr.h
rename to commit-slab-decl.h
diff --git a/commit-slab-impl.h b/commit-slab-impl.h
index 19a88d7d8f..87a9cadfcc 100644
--- a/commit-slab-impl.h
+++ b/commit-slab-impl.h
@@ -87,7 +87,7 @@ struct slabname
  * to allow a terminating semicolon, which makes instantiations look
  * like function declarations.  I.e., the expansion of
  *
- *    implement_commit_slab(indegree, int);
+ *    implement_commit_slab(indegree, int, static);
  *
  * ends in 'struct indegree;'.  This would otherwise
  * be a syntax error according (at least) to ISO C.  It's hard to
diff --git a/commit-slab.h b/commit-slab.h
index dc029acc66..69bf0c807c 100644
--- a/commit-slab.h
+++ b/commit-slab.h
@@ -1,7 +1,7 @@
 #ifndef COMMIT_SLAB_H
 #define COMMIT_SLAB_H
 
-#include "commit-slab-hdr.h"
+#include "commit-slab-decl.h"
 #include "commit-slab-impl.h"
 
 /*
diff --git a/commit.c b/commit.c
index 8202067cd5..e63a8dfeaa 100644
--- a/commit.c
+++ b/commit.c
@@ -1575,7 +1575,7 @@ int commit_tree_extended(const char *msg, size_t msg_len,
 }
 
 define_commit_slab(merge_desc_slab, struct merge_remote_desc *);
-struct merge_desc_slab merge_desc_slab = COMMIT_SLAB_INIT(1, merge_desc_slab);
+static struct merge_desc_slab merge_desc_slab = COMMIT_SLAB_INIT(1, merge_desc_slab);
 
 struct merge_remote_desc *merge_remote_util(struct commit *commit)
 {
diff --git a/commit.h b/commit.h
index 70371e111e..4432458367 100644
--- a/commit.h
+++ b/commit.h
@@ -16,6 +16,11 @@ struct commit_list {
 	struct commit_list *next;
 };
 
+/*
+ * The size of this struct matters in full repo walk operations like
+ * 'git clone' or 'git gc'. Consider using commit-slab to attach data
+ * to a commit instead of adding new fields here.
+ */
 struct commit {
 	struct object object;
 	unsigned int index;
@@ -23,11 +28,6 @@ struct commit {
 	struct commit_list *parents;
 	struct tree *tree;
 	uint32_t graph_pos;
-	/*
-	 * Do not add more fields here unless it's _very_ often
-	 * used. Use commit-slab to associate more data with a commit
-	 * instead.
-	 */
 };
 
 extern int save_commit_buffer;
diff --git a/object.h b/object.h
index b8e70e5519..caf36529f3 100644
--- a/object.h
+++ b/object.h
@@ -43,6 +43,7 @@ struct object_array {
  * builtin/index-pack.c:                                     2021
  * builtin/pack-objects.c:                                   20
  * builtin/reflog.c:                   10--12
+ * builtin/show-branch.c:    0-------------------------------------------26
  * builtin/unpack-objects.c:                                 2021
  */
 #define FLAG_BITS  27
diff --git a/revision.h b/revision.h
index f3dc5f9740..bf2239f876 100644
--- a/revision.h
+++ b/revision.h
@@ -6,7 +6,7 @@
 #include "notes.h"
 #include "pretty.h"
 #include "diff.h"
-#include "commit-slab-hdr.h"
+#include "commit-slab-decl.h"
 
 /* Remember to update object flag allocation in object.h */
 #define SEEN		(1u<<0)
diff --git a/sequencer.c b/sequencer.c
index dd4993fd99..3b6d56d085 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -3161,7 +3161,7 @@ static enum check_level get_missing_commit_check_level(void)
 	return CHECK_IGNORE;
 }
 
-define_commit_slab(commit_seen, uint8_t);
+define_commit_slab(commit_seen, unsigned char);
 /*
  * Check if the user dropped some commits by mistake
  * Behaviour determined by rebase.missingCommitsCheck.
diff --git a/shallow.c b/shallow.c
index daf60a9391..0301049781 100644
--- a/shallow.c
+++ b/shallow.c
@@ -110,7 +110,7 @@ struct commit_list *get_shallow_commits(struct object_array *heads, int depth,
 			} else {
 				commit = (struct commit *)
 					object_array_pop(&stack);
-				cur_depth = **commit_depth_peek(&depths, commit);
+				cur_depth = **commit_depth_at(&depths, commit);
 			}
 		}
 		parse_commit_or_die(commit);
@@ -140,8 +140,7 @@ struct commit_list *get_shallow_commits(struct object_array *heads, int depth,
 						NULL, &stack);
 			else {
 				commit = p->item;
-				depth_slot = commit_depth_peek(&depths, commit);
-				cur_depth = **depth_slot;
+				cur_depth = **commit_depth_at(&depths, commit);
 			}
 		}
 	}


Nguyễn Thái Ngọc Duy (15):
  commit-slab.h: code split
  commit-slab: support shared commit-slab
  blame: use commit-slab for blame suspects instead of commit->util
  describe: use commit-slab for commit names instead of commit->util
  shallow.c: use commit-slab for commit depth instead of commit->util
  sequencer.c: use commit-slab to mark seen commits
  sequencer.c: use commit-slab to associate todo items to commits
  revision.c: use commit-slab for show_source
  bisect.c: use commit-slab for commit weight instead of commit->util
  name-rev: use commit-slab for rev-name instead of commit->util
  show-branch: use commit-slab for commit-name instead of commit->util
  show-branch: note about its object flags usage
  log: use commit-slab in prepare_bases() instead of commit->util
  merge: use commit-slab in merge remote desc instead of commit->util
  commit.h: delete 'util' field in struct commit

 bisect.c              |  12 +++--
 blame.c               |  42 +++++++++++----
 blame.h               |   2 +
 builtin/blame.c       |   2 +-
 builtin/describe.c    |  16 ++++--
 builtin/fast-export.c |  14 +++--
 builtin/log.c         |  17 +++++--
 builtin/merge.c       |  25 ++++-----
 builtin/name-rev.c    |  23 +++++++--
 builtin/show-branch.c |  44 +++++++++++-----
 commit-slab-decl.h    |  43 ++++++++++++++++
 commit-slab-impl.h    |  97 +++++++++++++++++++++++++++++++++++
 commit-slab.h         | 115 +++---------------------------------------
 commit.c              |  12 ++++-
 commit.h              |   8 ++-
 log-tree.c            |   8 ++-
 merge-recursive.c     |   8 +--
 object.h              |   1 +
 revision.c            |  19 +++++--
 revision.h            |   5 +-
 sequencer.c           |  24 ++++++---
 shallow.c             |  40 ++++++++++-----
 22 files changed, 382 insertions(+), 195 deletions(-)
 create mode 100644 commit-slab-decl.h
 create mode 100644 commit-slab-impl.h
-- 
2.17.0.705.g3525833791
Previous: Junio C HamanoNext: Nguyễn Thái Ngọc Duy
Message 65 of 82 in “Die commit->util, die!”
  1. 00/12 Die commit->util, die!Nguyễn Thái Ngọc Duy, May 12, 2018
  2. 02/12 describe: use commit-slab for commit names instead of commit->utilNguyễn Thái Ngọc Duy, May 12, 2018
  3. 05/12 sequencer.c: use commit-slab to associate todo items to commitsNguyễn Thái Ngọc Duy, May 12, 2018
  4. Jeff KingMay 12, 2018
  5. 04/12 sequencer.c: use commit-slab to mark seen commitsNguyễn Thái Ngọc Duy, May 12, 2018
  6. Jeff KingMay 12, 2018
  7. Junio C HamanoMay 12, 2018
  8. Duy NguyenMay 12, 2018
  9. 06/12 revision.c: use commit-slab for show_sourceNguyễn Thái Ngọc Duy, May 12, 2018
  10. Jeff KingMay 12, 2018
  11. Junio C HamanoMay 12, 2018
  12. Duy NguyenMay 12, 2018
  13. Jeff KingMay 12, 2018
  14. 10/12 log: use commit-slab in prepare_bases() instead of commit->utilNguyễn Thái Ngọc Duy, May 12, 2018
  15. 12/12 commit.h: delete 'util' field in struct commitNguyễn Thái Ngọc Duy, May 12, 2018
  16. 11/12 merge: use commit-slab in merge remote desc instead of commit->utilNguyễn Thái Ngọc Duy, May 12, 2018
  17. 09/12 show-branch: use commit-slab for commit-name instead of commit->utilNguyễn Thái Ngọc Duy, May 12, 2018
  18. 01/12 blame: use commit-slab for blame suspects instead of commit->utilNguyễn Thái Ngọc Duy, May 12, 2018
  19. Jeff KingMay 12, 2018
  20. Duy NguyenMay 12, 2018
  21. 07/12 bisect.c: use commit-slab for commit weight instead of commit->utilNguyễn Thái Ngọc Duy, May 12, 2018
  22. Junio C HamanoMay 12, 2018
  23. 08/12 name-rev: use commit-slab for rev-name instead of commit->utilNguyễn Thái Ngọc Duy, May 12, 2018
  24. 03/12 shallow.c: use commit-slab for commit depth instead of commit->utilNguyễn Thái Ngọc Duy, May 12, 2018
  25. Jeff KingMay 12, 2018
  26. Jeff KingMay 12, 2018
  27. Duy NguyenMay 12, 2018
  28. Jeff KingMay 12, 2018
  29. Duy NguyenMay 12, 2018
  30. Jeff KingMay 12, 2018
  31. Jakub NarebskiMay 12, 2018
  32. Duy NguyenMay 13, 2018
  33. 00/14 Die commit->util, die!Nguyễn Thái Ngọc Duy, May 13, 2018
  34. 01/14 commit-slab.h: code splitNguyễn Thái Ngọc Duy, May 13, 2018
  35. Junio C HamanoMay 13, 2018
  36. 02/14 commit-slab: support shared commit-slabNguyễn Thái Ngọc Duy, May 13, 2018
  37. Junio C HamanoMay 13, 2018
  38. 03/14 blame: use commit-slab for blame suspects instead of commit->utilNguyễn Thái Ngọc Duy, May 13, 2018
  39. Junio C HamanoMay 13, 2018
  40. 06/14 sequencer.c: use commit-slab to mark seen commitsNguyễn Thái Ngọc Duy, May 13, 2018
  41. Junio C HamanoMay 14, 2018
  42. 12/14 log: use commit-slab in prepare_bases() instead of commit->utilNguyễn Thái Ngọc Duy, May 13, 2018
  43. 07/14 sequencer.c: use commit-slab to associate todo items to commitsNguyễn Thái Ngọc Duy, May 13, 2018
  44. 14/14 commit.h: delete 'util' field in struct commitNguyễn Thái Ngọc Duy, May 13, 2018
  45. Junio C HamanoMay 14, 2018
  46. Duy NguyenMay 14, 2018
  47. Duy NguyenMay 14, 2018
  48. Derrick StoleeMay 14, 2018
  49. Duy NguyenMay 19, 2018
  50. 08/14 revision.c: use commit-slab for show_sourceNguyễn Thái Ngọc Duy, May 13, 2018
  51. Junio C HamanoMay 14, 2018
  52. Junio C HamanoMay 14, 2018
  53. 13/14 merge: use commit-slab in merge remote desc instead of commit->utilNguyễn Thái Ngọc Duy, May 13, 2018
  54. Junio C HamanoMay 18, 2018
  55. Ramsay JonesMay 18, 2018
  56. 11/14 show-branch: use commit-slab for commit-name instead of commit->utilNguyễn Thái Ngọc Duy, May 13, 2018
  57. Junio C HamanoMay 14, 2018
  58. Duy NguyenMay 19, 2018
  59. 09/14 bisect.c: use commit-slab for commit weight instead of commit->utilNguyễn Thái Ngọc Duy, May 13, 2018
  60. Junio C HamanoMay 14, 2018
  61. 05/14 shallow.c: use commit-slab for commit depth instead of commit->utilNguyễn Thái Ngọc Duy, May 13, 2018
  62. 10/14 name-rev: use commit-slab for rev-name instead of commit->utilNguyễn Thái Ngọc Duy, May 13, 2018
  63. 04/14 describe: use commit-slab for commit names instead of commit->utilNguyễn Thái Ngọc Duy, May 13, 2018
  64. Junio C HamanoMay 13, 2018
  65. 00/15 Die commit->util, die!Nguyễn Thái Ngọc Duy, May 19, 2018
  66. 01/15 commit-slab.h: code splitNguyễn Thái Ngọc Duy, May 19, 2018
  67. Junio C HamanoMay 21, 2018
  68. 02/15 commit-slab: support shared commit-slabNguyễn Thái Ngọc Duy, May 19, 2018
  69. 04/15 describe: use commit-slab for commit names instead of commit->utilNguyễn Thái Ngọc Duy, May 19, 2018
  70. 08/15 revision.c: use commit-slab for show_sourceNguyễn Thái Ngọc Duy, May 19, 2018
  71. 09/15 bisect.c: use commit-slab for commit weight instead of commit->utilNguyễn Thái Ngọc Duy, May 19, 2018
  72. 07/15 sequencer.c: use commit-slab to associate todo items to commitsNguyễn Thái Ngọc Duy, May 19, 2018
  73. 13/15 log: use commit-slab in prepare_bases() instead of commit->utilNguyễn Thái Ngọc Duy, May 19, 2018
  74. 15/15 commit.h: delete 'util' field in struct commitNguyễn Thái Ngọc Duy, May 19, 2018
  75. 14/15 merge: use commit-slab in merge remote desc instead of commit->utilNguyễn Thái Ngọc Duy, May 19, 2018
  76. 06/15 sequencer.c: use commit-slab to mark seen commitsNguyễn Thái Ngọc Duy, May 19, 2018
  77. 12/15 show-branch: note about its object flags usageNguyễn Thái Ngọc Duy, May 19, 2018
  78. 11/15 show-branch: use commit-slab for commit-name instead of commit->utilNguyễn Thái Ngọc Duy, May 19, 2018
  79. 10/15 name-rev: use commit-slab for rev-name instead of commit->utilNguyễn Thái Ngọc Duy, May 19, 2018
  80. 03/15 blame: use commit-slab for blame suspects instead of commit->utilNguyễn Thái Ngọc Duy, May 19, 2018
  81. 05/15 shallow.c: use commit-slab for commit depth instead of commit->utilNguyễn Thái Ngọc Duy, May 19, 2018
  82. Stefan BellerMay 22, 2018

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