1 files changed, 30 insertions, 0 deletions
diff --git a/object/fetch/treefs.go b/object/fetch/treefs.go
new file mode 100644
index 00000000..06b6ad25
--- /dev/null
+++ b/object/fetch/treefs.go
@@ -0,0 +1,30 @@
+package fetch
+
+import (
+	"io/fs"
+
+	objectid "codeberg.org/lindenii/furgit/object/id"
+	"codeberg.org/lindenii/furgit/object/tree"
+)
+
+// TreeFS exposes one Git tree as an fs.FS.
+//
+// TreeFS interprets names using io/fs path rules. Those rules do not match raw
+// Git tree entry naming exactly: names are UTF-8, slash-separated, and must be
+// valid fs.FS paths. Tree entries that cannot be represented under those rules
+// are not addressable through this API.
+//
+// TreeFS does not take ownership of its Fetcher.
+type TreeFS struct {
+	resolver  *Fetcher
+	rootTree  objectid.ObjectID
+	rootEntry *tree.TreeEntry
+}
+
+var (
+	_ fs.FS         = (*TreeFS)(nil)
+	_ fs.ReadFileFS = (*TreeFS)(nil)
+	_ fs.ReadDirFS  = (*TreeFS)(nil)
+	_ fs.StatFS     = (*TreeFS)(nil)
+	_ fs.SubFS      = (*TreeFS)(nil)
+)