fix(compile): align ChangeReportInterface::get_local_changes return type

1 files changed, 3 insertions, 1 deletions

diff --git a/crates/shirabe/src/downloader/change_report_interface.rs b/crates/shirabe/src/downloader/change_report_interface.rs
index f0ca8e0..1b1c813 100644
--- a/crates/shirabe/src/downloader/change_report_interface.rs
+++ b/crates/shirabe/src/downloader/change_report_interface.rs
@@ -1,7 +1,9 @@
 //! ref: composer/src/Composer/Downloader/ChangeReportInterface.php
 
+use anyhow::Result;
+
 use crate::package::package_interface::PackageInterface;
 
 pub trait ChangeReportInterface {
-    fn get_local_changes(&self, package: &dyn PackageInterface, path: &str) -> Option<String>;
+    fn get_local_changes(&self, package: &dyn PackageInterface, path: &str) -> Result<Option<String>>;
 }