From 765da6f68d607fff5c4bef2b4d729805abb3e862 Mon Sep 17 00:00:00 2001
From: koide3 <31344317+koide3@users.noreply.github.com>
Date: Thu, 27 Jun 2024 12:06:17 +0900
Subject: [PATCH] CI for license check (#78)

* license check CI

* fix ci

* check both headers and source

* add SPDX identifiers

* trigger on only master
---
 .github/workflows/license.yml                | 21 ++++++++++++++++++++
 include/small_gicp/ann/flat_container.hpp    |  2 ++
 include/small_gicp/ann/knn_result.hpp        |  2 ++
 include/small_gicp/factors/robust_kernel.hpp |  2 ++
 4 files changed, 27 insertions(+)
 create mode 100644 .github/workflows/license.yml

diff --git a/.github/workflows/license.yml b/.github/workflows/license.yml
new file mode 100644
index 0000000..96e3d92
--- /dev/null
+++ b/.github/workflows/license.yml
@@ -0,0 +1,21 @@
+name: license
+
+on:
+  push:
+    branches: [ master ]
+    paths-ignore: '**.md'
+  pull_request:
+    branches: [ master ]
+    paths-ignore: '**.md'
+
+jobs:
+  license_check:
+    name: License check
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Check license
+        run: |
+          find include/small_gicp src/small_gicp -type f | xargs -I filename bash -c 'if ! grep -q SPDX-License-Identifier filename; then echo filename : lisence not found; exit 1; fi'
\ No newline at end of file
diff --git a/include/small_gicp/ann/flat_container.hpp b/include/small_gicp/ann/flat_container.hpp
index 4f0b4bd..f16bde3 100644
--- a/include/small_gicp/ann/flat_container.hpp
+++ b/include/small_gicp/ann/flat_container.hpp
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2024 Kenji Koide
+// SPDX-License-Identifier: MIT
 #pragma once
 
 #include <queue>
diff --git a/include/small_gicp/ann/knn_result.hpp b/include/small_gicp/ann/knn_result.hpp
index 757ab8d..53ee375 100644
--- a/include/small_gicp/ann/knn_result.hpp
+++ b/include/small_gicp/ann/knn_result.hpp
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2024 Kenji Koide
+// SPDX-License-Identifier: MIT
 #pragma once
 
 #include <array>
diff --git a/include/small_gicp/factors/robust_kernel.hpp b/include/small_gicp/factors/robust_kernel.hpp
index 0b27d54..9af6a8a 100644
--- a/include/small_gicp/factors/robust_kernel.hpp
+++ b/include/small_gicp/factors/robust_kernel.hpp
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2024 Kenji Koide
+// SPDX-License-Identifier: MIT
 #pragma once
 
 #include <Eigen/Core>