chore(licenses): add license headers to setup scripts

Reviewed-on: #146
Reviewed-by: Jakob Gregory

README.md

@@ -5,3 +5,7 @@ The frontend of the search engine Seekra.
 ## Setup
 
 Please execute the setup script in `scripts/` for your platform when cloning the repository.
+
+## Legal
+
+After each update to the dependencies, please run the script `scripts/generate-license-files.js` to regenerate the third-party license files.

scripts/generate-license-files.js

@@ -0,0 +1,58 @@
+#!/usr/bin/env node
+
+/*
+Copyright 2026 Seekra
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import fs from 'node:fs/promises';
+import { generateLicenseFile } from 'generate-license-file';
+
+const packageJson = './package.json';
+const packageJsonBackup = `${packageJson}~`;
+
+await generateLicenseFile(
+    packageJson,
+    'THIRD_PARTY_LICENSES'
+);
+
+const pkg = JSON.parse(
+    await fs.readFile(packageJson, 'utf-8')
+);
+
+await fs.rename(packageJson, packageJsonBackup);
+
+const devPackage = {
+    ...pkg,
+    dependencies: pkg.devDependencies ?? {},
+    devDependencies: {}
+};
+
+/*
+  The file including the dependencies for the current license file has
+  to be always package.json due to a bug of generate-license file. See
+
+    https://github.com/TobyAndToby/generate-license-file/issues/752
+*/
+await fs.writeFile(
+    packageJson,
+    JSON.stringify(devPackage)
+);
+
+await generateLicenseFile(
+    packageJson,
+    './THIRD_PARTY_LICENSES_DEV'
+);
+
+await fs.rename(packageJsonBackup, packageJson);

scripts/setup.ps1

@@ -1,3 +1,17 @@
 #!/usr/bin/env pwsh
 
+# Copyright 2026 Seekra
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 git config --local commit.template .gitmessage

scripts/setup.sh

@@ -1,3 +1,17 @@
 #!/usr/bin/bash
 
+# Copyright 2026 Seekra
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 git config --local commit.template .gitmessage