feat: added REUSE compliance check action

.config/.commitlintrc.json.license

@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+
+SPDX-License-Identifier: MIT

.config/.lintstagedrc-prettier.json.license

@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+
+SPDX-License-Identifier: MIT

.config/.lintstagedrc.json.license

@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+
+SPDX-License-Identifier: MIT

.config/.markdown-lint.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+#
+# SPDX-License-Identifier: MIT
+
 ---
 ###########################
 ###########################

.config/.stylelintrc.json.license

@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+
+SPDX-License-Identifier: MIT

.config/.stylelintrc.older.json.license

@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+
+SPDX-License-Identifier: MIT

.editorconfig

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+#
+# SPDX-License-Identifier: MIT
+
 # For more information about the properties used in
 # this file, please see the EditorConfig documentation:
 # https://editorconfig.org/

.gitattributes

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+#
+# SPDX-License-Identifier: MIT
+
 # adapted out of https://github.com/h5bp/html5-boilerplate/blob/main/.gitattributes and https://rehansaeed.com/gitattributes-best-practices/
 # Automatically normalize line endings for all text-based files
 # https://git-scm.com/docs/gitattributes#_end_of_line_conversion

.github/workflows/reuse-compliance-check.yml

@@ -0,0 +1,20 @@
+# SPDX-FileCopyrightText: 2022 Free Software Foundation Europe e.V. <https://fsfe.org>
+#
+# SPDX-License-Identifier: CC0-1.0
+---
+name: REUSE Compliance Check
+
+on: [push, pull_request]
+
+permissions:
+  contents: read
+
+jobs:
+  reuse-compliance-check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: REUSE Compliance Check
+        uses: fsfe/reuse-action@v5

.gitignore

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+#
+# SPDX-License-Identifier: MIT
+
 .DS_Store
 node_modules
 npm-debug.log

.prettierignore

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+#
+# SPDX-License-Identifier: MIT
+
 pnpm-lock.yaml
 node_modules
 dist

.prettierrc.json.license

@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+
+SPDX-License-Identifier: MIT

.yamllint.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+#
+# SPDX-License-Identifier: MIT
+
 # Configuration file for yamllint.
 # It extends the default conf by adjusting some options.
 

docs/TEST_FIXTURES.md

@@ -11,6 +11,12 @@ This document demonstrates the centralized test fixture system that provides a s
 **Input CSS:**
 
 ```css
+/*
+ * SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 .responsive {
 	width: if(media(width <= 768px): 100%; else: 50%);
 }
@@ -19,6 +25,12 @@ This document demonstrates the centralized test fixture system that provides a s
 **Expected Output:**
 
 ```css
+/*
+ * SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 .responsive {
 	width: 50%;
 }
@@ -40,6 +52,12 @@ This document demonstrates the centralized test fixture system that provides a s
 **Input CSS:**
 
 ```css
+/*
+ * SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 .grid {
 	display: if(supports(display: grid): grid; else: block);
 }
@@ -48,6 +66,12 @@ This document demonstrates the centralized test fixture system that provides a s
 **Expected Output:**
 
 ```css
+/*
+ * SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 .grid {
 	display: block;
 }
@@ -69,6 +93,12 @@ This document demonstrates the centralized test fixture system that provides a s
 **Input CSS:**
 
 ```css
+/*
+ * SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 .test {
 	color: if(style(--theme): var(--primary) ; else: #00f);
 }
@@ -77,6 +107,12 @@ This document demonstrates the centralized test fixture system that provides a s
 **Expected Output:**
 
 ```css
+/*
+ * SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 .test {
 	color: #00f;
 }
@@ -93,6 +129,12 @@ This document demonstrates the centralized test fixture system that provides a s
 **Input CSS:**
 
 ```css
+/*
+ * SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 .example {
 	color: if(media(width <= 768px): #00f; else: red);
 	font-size: if(supports(display: grid): 1.2rem; else: 1rem);
@@ -102,6 +144,12 @@ This document demonstrates the centralized test fixture system that provides a s
 **Expected Output:**
 
 ```css
+/*
+ * SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 .example {
 	color: red;
 }
@@ -131,6 +179,12 @@ This document demonstrates the centralized test fixture system that provides a s
 **Input CSS:**
 
 ```css
+/*
+ * SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 .responsive {
 	padding: if(
 		media(width >= 1200px): 40px; media(width >= 768px): 30px;
@@ -142,6 +196,12 @@ This document demonstrates the centralized test fixture system that provides a s
 **Expected Output:**
 
 ```css
+/*
+ * SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 .responsive {
 	padding: 15px;
 }
@@ -173,6 +233,12 @@ This document demonstrates the centralized test fixture system that provides a s
 **Input CSS:**
 
 ```css
+/*
+ * SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 .test {
 	color: if(media(width >= 768px): #00f; else: red);
 	background: if(style(--dark-mode): black; else: white);
@@ -182,6 +248,12 @@ This document demonstrates the centralized test fixture system that provides a s
 **Expected Output:**
 
 ```css
+/*
+ * SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 .test {
 	color: red;
 }
@@ -206,6 +278,12 @@ This document demonstrates the centralized test fixture system that provides a s
 **Input CSS:**
 
 ```css
+/*
+ * SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 .responsive {
 	width: if(media((width >= 768px) and (width <= 1024px)): 50%; else: 100%);
 }
@@ -214,6 +292,12 @@ This document demonstrates the centralized test fixture system that provides a s
 **Expected Output:**
 
 ```css
+/*
+ * SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 .responsive {
 	width: 100%;
 }
@@ -235,6 +319,12 @@ This document demonstrates the centralized test fixture system that provides a s
 **Input CSS:**
 
 ```css
+/*
+ * SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 /* Header styles */
 .header {
 	background: #00f;
@@ -253,6 +343,12 @@ This document demonstrates the centralized test fixture system that provides a s
 **Expected Output:**
 
 ```css
+/*
+ * SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 /* Header styles */
 .header {
 	background: #00f;
@@ -282,6 +378,12 @@ This document demonstrates the centralized test fixture system that provides a s
 **Input CSS:**
 
 ```css
+/*
+ * SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 .normal {
 	color: red;
 	font-size: 1rem;
@@ -291,6 +393,12 @@ This document demonstrates the centralized test fixture system that provides a s
 **Expected Output:**
 
 ```css
+/*
+ * SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 .normal {
 	color: red;
 	font-size: 1rem;

docs/refactoring/TEST_CENTRALIZATION_SUMMARY.md

@@ -84,6 +84,12 @@ pnpm run build:docs  # Auto-generates docs from fixtures
 **Input CSS:**
 
 ```css
+/*
+ * SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 .responsive {
 	width: if(media(width <= 768px): 100%; else: 50%);
 }
@@ -92,6 +98,12 @@ pnpm run build:docs  # Auto-generates docs from fixtures
 **Expected Output:**
 
 ```css
+/*
+ * SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 .responsive {
 	width: 50%;
 }

package.json.license

@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+
+SPDX-License-Identifier: MIT

packages/lightningcss-plugin-if-function/README.md

@@ -1,3 +1,9 @@
+<!--
+SPDX-FileCopyrightText: 2025 Maximilian Franzke <mfr@nzke.net>
+
+SPDX-License-Identifier: MIT
+-->
+
 # lightningcss-plugin-if-function
 
 [![Default CI/CD Pipeline](https://github.com/mfranzke/css-if-polyfill/actions/workflows/default.yml/badge.svg)](https://github.com/mfranzke/css-if-polyfill/actions/workflows/default.yml)