diff --git a/source/src/main/java/one/nem/lacerta/source/jgit/impl/ActionRepoImpl.java b/source/src/main/java/one/nem/lacerta/source/jgit/impl/ActionRepoImpl.java
index 9399861a..53d8033a 100644
--- a/source/src/main/java/one/nem/lacerta/source/jgit/impl/ActionRepoImpl.java
+++ b/source/src/main/java/one/nem/lacerta/source/jgit/impl/ActionRepoImpl.java
@@ -1,5 +1,6 @@
 package one.nem.lacerta.source.jgit.impl;
 
+import org.eclipse.jgit.api.Git;
 import org.eclipse.jgit.lib.Repository;
 
 import one.nem.lacerta.source.jgit.ActionRepo;
@@ -8,6 +9,11 @@ public class ActionRepoImpl implements ActionRepo{
 
     Repository repository;
 
+    // Internal method
+    private Git getGit() {
+        return new Git(repository);
+    }
+
     @Override
     public void setRepository(Repository repository) {
         this.repository = repository;
@@ -15,22 +21,35 @@ public class ActionRepoImpl implements ActionRepo{
 
     @Override
     public Repository getRepository() {
-        return null;
+        if (repository == null) {
+            throw new RuntimeException("リポジトリが設定されていません");
+        }
+        return repository;
     }
 
     @Override
     public String getRepositoryName() {
-        return null;
+        return repository.getDirectory().getParentFile().getName();
     }
 
     @Override
     public String[] getUnstagedFiles() {
-        return new String[0];
+        Git git = new Git(repository);
+        try {
+            return git.status().call().getUntracked().toArray(new String[0]);
+        } catch (Exception e) { // TODO-rca: エラーハンドリング
+            return new String[0];
+        }
     }
 
     @Override
     public String[] getStagedFiles() {
-        return new String[0];
+        Git git = new Git(repository);
+        try {
+            return git.status().call().getAdded().toArray(new String[0]);
+        } catch (Exception e) { // TODO-rca: エラーハンドリング
+            return new String[0];
+        }
     }
 
     @Override