Sorting

.github/workflows/check.yml

@@ -37,6 +37,17 @@ jobs:
       - name: Lint YAML files
         run: yamllint license-classifications.yml
 
+  Sort:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Clone the repository
+        uses: actions/checkout@v4
+      - name: Sort YAML files
+        run: |
+          ./sort-licenses.sh
+          git diff --quiet
+
   REUSE:
     runs-on: ubuntu-latest
 

sort-licenses.sh

@@ -0,0 +1,20 @@
+#!/bin/env bash
+
+# SPDX-FileCopyrightText: 2025 Double Open Oy <support@doubleopen.org>
+# SPDX-License-Identifier: CC0-1.0
+
+# Avoid multi-line strings being unwrapped by `yq`.
+# This works around https://github.com/mikefarah/yq/issues/439.
+sed -i 's,>-,|,g' license-classifications.yml
+
+# Replace empty lines with marker comments.
+# This works around https://github.com/mikefarah/yq/issues/515.
+sed -i 's,^$,#EMPTY_LINE,g' license-classifications.yml
+
+yq -i '.categorizations |= sort_by(.id)' license-classifications.yml
+
+# Replace marker comments (with potential indentation added by `yq`) with empty lines.
+sed -i 's, *#EMPTY_LINE,,g' license-classifications.yml
+
+# Restore original folded blocks with stripped newlines.
+sed -i 's,|,>-,g' license-classifications.yml