diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
new file mode 100644
index 0000000..4bbd42a
--- /dev/null
+++ b/.github/workflows/check.yml
@@ -0,0 +1,56 @@
+on:
+  push:
+    branches:
+      - develop
+  pull_request:
+
+name: Check Rust code
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
+    - name: Install Rust nightly with rustfmt and clippy
+      uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: nightly
+        components: rustfmt, clippy
+
+    - name: Cache cargo registry and build outputs
+      uses: actions/cache@v2
+      with:
+        path: |
+          ~/.cargo/registry
+          target
+        key: ${{ runner.os }}-cargo-${{ hashFiles('Cargo.lock') }}
+
+    - name: Check formatting
+      uses: actions-rs/cargo@v1
+      with:
+        command: fmt
+        args: -- --check
+
+    - name: Annotate commit with clippy warnings
+      uses: actions-rs/clippy-check@v1
+      with:
+        token: ${{ secrets.GITHUB_TOKEN }}
+        args: --all-features
+
+    - name: Run cargo check
+      uses: actions-rs/cargo@v1
+      with:
+        command: check
+
+    - name: Run cargo test
+      uses: actions-rs/cargo@v1
+      with:
+        command: test
+
+    - name: Run cargo doc
+      uses: actions-rs/cargo@v1
+      with:
+        command: doc
+        args: --no-deps
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index 3bd9929..5df6857 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -16,10 +16,15 @@ fn main() -> anyhow::Result<()> {
             let path = format!("{}/.git", entry.path().display());
             let git_dir = Path::new(&path);
             if git_dir.exists() {
+                let repo = Repository::open(git_dir)?;
+                if repo.is_empty()? {
+                    continue;
+                }
+
                 items.push(format!(
                     "{} = {}",
                     entry.path().to_string_lossy().to_string(),
-                    Repository::open(git_dir)?.head()?.name().unwrap_or("None")
+                    repo.head()?.name().unwrap_or("None")
                 ));
             }
         };