1 files changed, 81 insertions, 0 deletions
diff --git a/modules/git/tree_blob.go b/modules/git/tree_blob.go
new file mode 100644
index 0000000..df339f6
--- /dev/null
+++ b/modules/git/tree_blob.go
@@ -0,0 +1,81 @@
+// Copyright 2015 The Gogs Authors. All rights reserved.
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// Copyright 2024 The Forgejo Authors c/o Codeberg e.V.. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"path"
+	"strings"
+)
+
+// GetTreeEntryByPath get the tree entries according the sub dir
+func (t *Tree) GetTreeEntryByPath(relpath string) (*TreeEntry, error) {
+	if len(relpath) == 0 {
+		return &TreeEntry{
+			ptree:     t,
+			ID:        t.ID,
+			name:      "",
+			fullName:  "",
+			entryMode: EntryModeTree,
+		}, nil
+	}
+
+	// FIXME: This should probably use git cat-file --batch to be a bit more efficient
+	relpath = path.Clean(relpath)
+	parts := strings.Split(relpath, "/")
+	var err error
+	tree := t
+	for i, name := range parts {
+		if i == len(parts)-1 {
+			entries, err := tree.ListEntries()
+			if err != nil {
+				return nil, err
+			}
+			for _, v := range entries {
+				if v.Name() == name {
+					return v, nil
+				}
+			}
+		} else {
+			tree, err = tree.SubTree(name)
+			if err != nil {
+				return nil, err
+			}
+		}
+	}
+	return nil, ErrNotExist{"", relpath}
+}
+
+// GetBlobByPath get the blob object according the path
+func (t *Tree) GetBlobByPath(relpath string) (*Blob, error) {
+	entry, err := t.GetTreeEntryByPath(relpath)
+	if err != nil {
+		return nil, err
+	}
+
+	if !entry.IsDir() && !entry.IsSubModule() {
+		return entry.Blob(), nil
+	}
+
+	return nil, ErrNotExist{"", relpath}
+}
+
+// GetBlobByFoldedPath returns the blob object at relpath, regardless of the
+// case of relpath. If there are multiple files with the same case-insensitive
+// name, the first one found will be returned.
+func (t *Tree) GetBlobByFoldedPath(relpath string) (*Blob, error) {
+	entries, err := t.ListEntries()
+	if err != nil {
+		return nil, err
+	}
+
+	for _, entry := range entries {
+		if strings.EqualFold(entry.Name(), relpath) {
+			return t.GetBlobByPath(entry.Name())
+		}
+	}
+
+	return nil, ErrNotExist{"", relpath}
+}