Refactored to use a build script

bin/build

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+set +e
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null && pwd)"
+cd "$DIR/.."
+
+# Build script to combine all source files into a single content.js
+
+# Create the output file and start the IIFE
+echo '(function() {' >content.js
+echo '' >>content.js
+
+# Add each external library first
+for file in lib/*; do
+  cat "$file" >>content.js
+  echo "// === $file ===" >>content.js
+  echo '' >>content.js
+  echo '' >>content.js
+done
+
+# Add each source file in order
+for file in src/*; do
+  echo "// === $file ===" >>content.js
+  cat "$file" >>content.js
+  echo '' >>content.js
+  echo '' >>content.js
+done
+
+echo 'main();' >>content.js
+
+# Close the IIFE
+echo '})();' >>content.js
+
+echo "Built content.js from source files"