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[PATCH 4/6] revision: factor out add_parents()

From
René Scharfe <l.s.r@web.de>
Date
Sep 15, 2022, 14:53 UTC
Message-ID
<23a6914b-47e5-d3a9-ca95-01035b691bca@web.de>
In-Reply-To
<ba6eea28-fb3a-b376-2529-351727c02f1a@web.de>

Add a function that registers all parents. Use it in add_parents_only() to handle the case of exclude_parent being unset early.

With that out of the way we can specialize the remaining loop can to register only the specified parent. And since we exit reporting success once we got it we no longer need to check the total number of parents beforehand.

Signed-off-by: René Scharfe <l.s.r@web.de>
---
 revision.c | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)
diff --git a/revision.c b/revision.c
index 14cb73e508..284393a146 100644
--- a/revision.c
+++ b/revision.c
@@ -1861,6 +1861,13 @@ static void add_parent(struct rev_info *revs, struct object *parent,
 	add_pending_object(revs, parent, arg);
 }

+static void add_parents(struct rev_info *revs, struct commit_list *parents,
+			const char *arg, int flags)
+{
+	for (; parents; parents = parents->next)
+		add_parent(revs, &parents->item->object, arg, flags);
+}
+
 static int add_parents_only(struct rev_info *revs, const char *arg_, int flags,
 			    int exclude_parent)
 {
@@ -1870,18 +1877,19 @@ static int add_parents_only(struct rev_info *revs, const char *arg_, int flags,

 	if (!commit)
 		return 0;
-	if (exclude_parent &&
-	    exclude_parent > commit_list_count(commit->parents))
-		return 0;
+	if (!exclude_parent) {
+		add_parents(revs, commit->parents, arg_, flags);
+		return 1;
+	}
 	for (parents = commit->parents, parent_number = 1;
 	     parents;
 	     parents = parents->next, parent_number++) {
-		if (exclude_parent && parent_number != exclude_parent)
-			continue;
-
-		add_parent(revs, &parents->item->object, arg_, flags);
+		if (parent_number == exclude_parent) {
+			add_parent(revs, &parents->item->object, arg_, flags);
+			return 1;
+		}
 	}
-	return 1;
+	return 0;
 }

 void repo_init_revisions(struct repository *r,
--
2.37.3
Previous: René ScharfeNext: René Scharfe
Message 6 of 16 in “revision: fix order of revs for ^!”
  1. 0/6 revision: fix order of revs for ^!René Scharfe, Sep 15, 2022
  2. 1/6 revision: use strtol_i() for exclude_parentRené Scharfe, Sep 15, 2022
  3. Chris TorekSep 17, 2022
  4. 2/6 revision: factor out get_commit()René Scharfe, Sep 15, 2022
  5. 3/6 revision: factor out add_parent()René Scharfe, Sep 15, 2022
  6. 4/6 revision: factor out add_parents()René Scharfe, Sep 15, 2022
  7. 5/6 revision: rename add_parents_only() to add_nth_parent()René Scharfe, Sep 15, 2022
  8. 6/6 revision: add parents after child for ^!René Scharfe, Sep 15, 2022
  9. Junio C HamanoSep 15, 2022
  10. René ScharfeSep 16, 2022
  11. Junio C HamanoSep 16, 2022
  12. René ScharfeSep 18, 2022
  13. 0/3 diff: support ^! for mergesRené Scharfe, Oct 1, 2022
  14. 1/3 revision: use strtol_i() for exclude_parentRené Scharfe, Oct 1, 2022
  15. 2/3 revisions.txt: unspecify order of resolved parts of ^!René Scharfe, Oct 1, 2022
  16. 3/3 diff: support ^! for mergesRené Scharfe, Oct 1, 2022

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