chore: Adjust post-build script to add license files for sourcemaps on build

Signed-off-by: Ferdinand Thiessen <opensource@fthiessen.de>

build/npm-post-build.sh

@@ -0,0 +1,29 @@
+#!/bin/sh
+
+# SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
+set -e
+
+# Build CSS files from SCSS
+npm run sass
+# Build icons
+npm run sass:icons
+
+# Add licenses for source maps
+if [ -d "dist" ]; then
+	for f in dist/*.js; do
+		# If license file and source map exists copy license for the sourcemap
+		if [ -f "$f.license" ] && [ -f "$f.map" ]; then
+			# Remove existing link
+			[ -e "$f.map.license" ] || [ -L "$f.map.license" ] && rm "$f.map.license"
+			# Create a new link
+			ln -s "$(basename "$f.license")" "$f.map.license" 
+		fi
+	done
+	echo "Copying licenses for sourcemaps done"
+else
+	echo "This script needs to be executed from the root of the repository"
+	exit 1
+fi
+

package.json

@@ -9,7 +9,7 @@
   },
   "scripts": {
     "build": "webpack --node-env production --progress",
-    "postbuild": "npm run sass && npm run sass:icons",
+    "postbuild": "build/npm-post-build.sh",
     "dev": "webpack --node-env development --progress",
     "watch": "webpack --node-env development --progress --watch",
     "lint": "eslint $(for appdir in $(ls apps); do if ! $(git check-ignore -q $appdir); then printf \"$appdir \"; fi; done) core --no-error-on-unmatched-pattern",