# js_bundler URL: /api/utils/js_bundler/ Section: utils -------------------------------------------------------------------------------- js_bundler - Bengal window.BENGAL_THEME_DEFAULTS = { appearance: 'dark', palette: 'snow-lynx' }; // Progressive Enhancement System Configuration window.Bengal = window.Bengal || {}; window.Bengal.enhanceBaseUrl = '/bengal/assets/js/enhancements'; window.Bengal.watchDom = true; window.Bengal.debug = false; (function () { try { var defaults = window.BENGAL_THEME_DEFAULTS || { appearance: 'system', palette: '' }; var defaultAppearance = defaults.appearance; if (defaultAppearance === 'system') { defaultAppearance = (window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches) ? 'dark' : 'light'; } var storedTheme = localStorage.getItem('bengal-theme'); var storedPalette = localStorage.getItem('bengal-palette'); var theme = storedTheme ? (storedTheme === 'system' ? defaultAppearance : storedTheme) : defaultAppearance; var palette = storedPalette ?? defaults.palette; document.documentElement.setAttribute('data-theme', theme); if (palette) { document.documentElement.setAttribute('data-palette', palette); } } catch (e) { document.documentElement.setAttribute('data-theme', 'light'); } })(); Skip to main content Magnifying Glass ESC Recent Clear Magnifying Glass No results for "" Try different keywords or check your spelling Start typing to search... ↑↓ Navigate ↵ Open ESC Close Powered by Lunr ᓚᘏᗢ Documentation Info About Arrow Clockwise Get Started Note Tutorials File Text Content Palette Theming Settings Building Starburst Extending Bookmark Reference Learning Tracks Releases Dev GitHub API Reference bengal CLI Magnifying Glass Search ⌘K Palette Appearance Chevron Down Mode Monitor System Sun Light Moon Dark Palette Snow Lynx Brown Bengal Silver Bengal Charcoal Bengal Blue Bengal List ᓚᘏᗢ Magnifying Glass Search X Close Documentation Info About Arrow Clockwise Get Started Note Tutorials File Text Content Palette Theming Settings Building Starburst Extending Bookmark Reference Learning Tracks Releases Dev GitHub API Reference bengal CLI Palette Appearance Chevron Down Mode Monitor System Sun Light Moon Dark Palette Snow Lynx Brown Bengal Silver Bengal Charcoal Bengal Blue Bengal API Reference __main__ bengal Caret Right Folder Analysis community_detection graph_analysis graph_reporting graph_visualizer knowledge_graph link_suggestions link_types page_rank path_analysis performance_advisor results Caret Right Folder Assets manifest pipeline Caret Right Folder Autodoc base config docstring_parser utils virtual_orchestrator Caret Right Folder Extractors cli openapi python Caret Right Folder Models cli common openapi python Caret Right Folder Cache asset_dependency_map cache_store cacheable compression dependency_tracker page_discovery_cache query_index query_index_registry taxonomy_index utils Caret Right Folder Build Cache autodoc_tracking core file_tracking fingerprint parsed_content_cache rendered_output_cache taxonomy_index_mixin validation_cache Caret Right Folder Indexes author_index category_index date_range_index section_index Caret Right Folder Cli __main__ base site_templates utils Caret Right Folder Commands assets build clean collections config debug explain fix health init perf project serve site skeleton sources theme utils validate Caret Right Folder Graph __main__ bridges communities orphans pagerank report suggest Caret Right Folder New config presets scaffolds site wizard Caret Right Folder Helpers cli_app_loader cli_output config_validation error_handling menu_config metadata progress site_loader traceback validation Caret Right Folder Skeleton hydrator schema Caret Right Folder Templates base registry Caret Right Folder Blog template Caret Right Folder Changelog template Caret Right Folder Default template Caret Right Folder Docs template Caret Right Folder Landing template Caret Right Folder Portfolio template Caret Right Folder Resume template Caret Right Folder Collections errors loader schemas validator Caret Right Folder Config defaults deprecation directory_loader env_overrides environment feature_mappings hash loader merge origin_tracker validators Caret Right Folder Content Layer entry loaders manager source Caret Right Folder Sources github local notion rest Caret Right Folder Content Types base registry strategies Caret Right Folder Core build_context cascade_engine menu section theme Caret Right Folder Asset asset_core css_transforms Caret Right Folder Page computed content metadata navigation operations page_core proxy relationships utils Caret Right Folder Site core data discovery factories page_caches properties section_registry theme Caret Right Folder Debug base config_inspector content_migrator delta_analyzer dependency_visualizer explainer incremental_debugger models reporter shortcode_sandbox Caret Right Folder Discovery asset_discovery content_discovery Caret Right Folder Fonts downloader generator Caret Right Folder Health autofix base health_check report Caret Right Folder Linkcheck async_checker ignore_policy internal_checker models orchestrator Caret Right Folder Validators anchors assets cache config connectivity cross_ref fonts links menu navigation output performance rendering rss sitemap taxonomy tracks Caret Right Folder Directives analysis checkers constants Caret Right Folder Orchestration asset content full_to_incremental incremental menu postprocess related_posts render section static streaming taxonomy Caret Right Folder Postprocess html_output redirects rss sitemap special_pages Caret Right Folder Output Formats index_generator json_generator llm_generator lunr_index_generator txt_generator utils Caret Right Folder Rendering api_doc_enhancer asset_extractor errors jinja_utils link_transformer link_validator pygments_cache renderer template_context template_profiler validator Caret Right 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reload_controller request_handler request_logger resource_manager utils Caret Right Folder Services validation Caret Right Folder Themes config Caret Right Folder Utils atomic_write autodoc build_context build_stats build_summary cli_output css_minifier dates dotdict error_handlers file_io file_lock hashing incremental_constants js_bundler live_progress logger metadata observability page_initializer pagination path_resolver paths performance_collector performance_report profile progress retry rich_console sections swizzle text theme_registry theme_resolution thread_local traceback_config traceback_renderer url_normalization url_strategy API Reference Utils ᗢ Caret Down Link Copy URL External Open LLM text Copy Copy LLM text Share with AI Ask Claude Ask ChatGPT Ask Gemini Ask Copilot Module utils.js_bundler Pure Python JavaScript Bundler for Bengal SSG. Bundles multiple JavaScript files into a single file without any Node.js dependencies. Uses concatenation with IIFE preservation to avoid variable conflicts. Features: Preserves IIFEs (Immediately Invoked Function Expressions) Adds source file comments for debugging Configurable load order via manifest or naming convention Minification via jsmin (optional) Performance Impact: Reduces HTTP requests from ~20 to 1 on mobile (saves ~1-2s on slow 4G) Single bundled file can be cached efficiently View source 5 Functions Functions bundle_js_files Bundle multiple JavaScript files into a single string. Files are concatenated in the order provide… 1 str Caret Right def bundle_js_files(files: list[Path]) -> str Bundle multiple JavaScript files into a single string. Files are concatenated in the order provided. Each file's content is separated by a newline. Source comments can be added for debugging. Parameters 1 Name Type Default Description files list[Path] — List of JS file paths in load order (dependencies first) Returns str — Bundled JavaScript content as a single string get_theme_js_bundle_order Return the canonical load order for Bengal default theme JS files. This order ensures dependencies… 0 list[str] Caret Right def get_theme_js_bundle_order() -> list[str] Return the canonical load order for Bengal default theme JS files. This order ensures dependencies are loaded before dependents: utils.js - Core utilities (BengalUtils namespace) bengal-enhance.js - Enhancement registry (load second) core/theme.js - Theme switching (merged from theme-toggle.js + theme-init.js) core/search.js - Search (merged from search.js, search-modal.js, search-page.js, search-preload.js) core/nav-dropdown.js - Navigation dropdowns (always needed) core/session-path-tracker.js - Analytics (always needed) enhancements/mobile-nav.js - Mobile navigation enhancements/tabs.js - Tab component enhancements/toc.js - Table of contents enhancements/action-bar.js - Action bar (copy, etc.) enhancements/interactive.js - Interactive elements main.js - Main initialization enhancements/copy-link.js - Copy link functionality enhancements/holo.js - Holographic effects (merged from holo.js + holo-cards.js) enhancements/lazy-loaders.js - Lazy loading (Mermaid, D3, etc.) Returns list[str] — List of JS filenames in load order (with paths relative to js/ directory) get_theme_js_excluded Return JS files that should NOT be bundled. These are either: - Third-party minified libraries (al… 0 set[str] Caret Right def get_theme_js_excluded() -> set[str] Return JS files that should NOT be bundled. These are either: Third-party minified libraries (already optimized) Conditionally loaded scripts (loaded via lazy-loaders.js) Feature-specific scripts that may not be enabled Returns set[str] — Set of filenames to exclude from bundling discover_js_files Discover and order JS files for bundling from a directory. Files are ordered according to bundle_o… 1 list[Path] Caret Right def discover_js_files(js_dir: Path) -> list[Path] Discover and order JS files for bundling from a directory. Files are ordered according to bundle_order if provided, with any remaining files appended at the end. Parameters 1 Name Type Default Description js_dir Path — Directory containing JS files Returns list[Path] — List of file paths in bundling order create_js_bundle Create a JavaScript bundle from a theme's JS directory. High-level function that discovers files a… 2 str Caret Right def create_js_bundle(js_dir: Path, output_path: Path | None = None) -> str Create a JavaScript bundle from a theme's JS directory. High-level function that discovers files and bundles them. Parameters 2 Name Type Default Description js_dir Path — Directory containing JS files output_path Path | None None Optional path to write bundle (if None, returns string only) Returns str — Bundled JavaScript content ← Previous incremental_constants Next → live_progress List © 2025 Bengal ᓚᘏᗢ window.BENGAL_LAZY_ASSETS = { tabulator: '/bengal/assets/js/tabulator.min.js', dataTable: '/bengal/assets/js/data-table.js', mermaidToolbar: '/bengal/assets/js/mermaid-toolbar.9de5abba.js', mermaidTheme: '/bengal/assets/js/mermaid-theme.344822c5.js', graphMinimap: '/bengal/assets/js/graph-minimap.cc7e42e3.js', graphContextual: '/bengal/assets/js/graph-contextual.440e59c6.js' }; window.BENGAL_ICONS = { close: '/bengal/assets/icons/close.911d4fe1.svg', enlarge: '/bengal/assets/icons/enlarge.652035e5.svg', copy: '/bengal/assets/icons/copy.3d56e945.svg', 'download-svg': '/bengal/assets/icons/download.04f07e1b.svg', 'download-png': '/bengal/assets/icons/image.c34dfd40.svg', 'zoom-in': '/bengal/assets/icons/zoom-in.237b4a83.svg', 'zoom-out': '/bengal/assets/icons/zoom-out.38857c77.svg', reset: '/bengal/assets/icons/reset.d26dba29.svg' }; Arrow Up X -------------------------------------------------------------------------------- Metadata: - Author: lbliii - Word Count: 1454 - Reading Time: 7 minutes