// iterateCommitTrees iterate all reachable trees from the given commit
func iterateCommitTrees(
s storer.EncodedObjectStorer,
commit *object.Commit,
cb func(h plumbing.Hash) error) error {
tree, err := commit.Tree()
if err != nil {
return err
}
if err := cb(tree.Hash); err != nil {
return err
}
treeWalker := object.NewTreeWalker(tree, true)
for {
_, e, err := treeWalker.Next()
if err == io.EOF {
break
}
if err != nil {
return err
}
if err := cb(e.Hash); err != nil {
return err
}
}
return nil
}
