From c1002494eb389b703731c5267561a2703a8cd3b1 Mon Sep 17 00:00:00 2001
From: onee-only <kimww0306@gmail.com>
Date: Sun, 10 Mar 2024 15:50:17 +0900
Subject: plumbing: object, Optimize getNextFileCommit to reuse parent tree.

---
 plumbing/object/commit_walker_path.go | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/plumbing/object/commit_walker_path.go b/plumbing/object/commit_walker_path.go
index e054966..c1ec8ba 100644
--- a/plumbing/object/commit_walker_path.go
+++ b/plumbing/object/commit_walker_path.go
@@ -57,6 +57,8 @@ func (c *commitPathIter) Next() (*Commit, error) {
 }
 
 func (c *commitPathIter) getNextFileCommit() (*Commit, error) {
+	var parentTree, currentTree *Tree
+
 	for {
 		// Parent-commit can be nil if the current-commit is the initial commit
 		parentCommit, parentCommitErr := c.sourceIter.Next()
@@ -68,13 +70,17 @@ func (c *commitPathIter) getNextFileCommit() (*Commit, error) {
 			parentCommit = nil
 		}
 
-		// Fetch the trees of the current and parent commits
-		currentTree, currTreeErr := c.currentCommit.Tree()
-		if currTreeErr != nil {
-			return nil, currTreeErr
+		if parentTree == nil {
+			var currTreeErr error
+			currentTree, currTreeErr = c.currentCommit.Tree()
+			if currTreeErr != nil {
+				return nil, currTreeErr
+			}
+		} else {
+			currentTree = parentTree
+			parentTree = nil
 		}
 
-		var parentTree *Tree
 		if parentCommit != nil {
 			var parentTreeErr error
 			parentTree, parentTreeErr = parentCommit.Tree()
-- 
cgit 


From b274b225bf92f086d8e59d023ed436e97ed14062 Mon Sep 17 00:00:00 2001
From: onee-only <kimww0306@gmail.com>
Date: Sun, 10 Mar 2024 15:52:13 +0900
Subject: plumbing: object, Apply memoization in (*treeNoder).Children.

---
 plumbing/object/treenoder.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/plumbing/object/treenoder.go b/plumbing/object/treenoder.go
index 6e7b334..2adb645 100644
--- a/plumbing/object/treenoder.go
+++ b/plumbing/object/treenoder.go
@@ -88,7 +88,9 @@ func (t *treeNoder) Children() ([]noder.Noder, error) {
 		}
 	}
 
-	return transformChildren(parent)
+	var err error
+	t.children, err = transformChildren(parent)
+	return t.children, err
 }
 
 // Returns the children of a tree as treenoders.
-- 
cgit