# asset_core URL: /api/core/asset/asset_core/ Section: asset -------------------------------------------------------------------------------- asset_core - 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 Folder Parsers base factory mistune native_html pygments_patch python_markdown Caret Right Folder Pipeline core output thread_local toc transforms Caret Right Folder Plugins badges cross_references inline_icon term variable_substitution Caret Right Folder Directives _icons admonitions badge base button cache cards checklist code_tabs container contracts data_table dropdown embed errors example_label fenced figure glossary icon include list_table literalinclude marimo navigation options rubric steps tabs target term terminal tokens utils validator video Caret Right Folder Template Engine asset_url core environment manifest menu url_helpers Caret Right Folder Template Functions advanced_collections advanced_strings autodoc collections content crossref data dates debug files get_page i18n icons images math_functions navigation pagination_helpers seo strings tables taxonomies theme urls Caret Right Folder Server build_handler component_preview constants dev_server live_reload pid_manager 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 Core Asset 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 core.asset.asset_core Asset dataclass for static file representation. The Asset class represents a static file (image, CSS, JS, font, etc.) and provides methods for processing, optimization, fingerprinting, and output writing. Key Methods: minify(): Minify CSS/JS content bundle_css(): Resolve @import statements into single file optimize(): Optimize images hash(): Generate fingerprint for cache-busting copy_to_output(): Write processed asset to output directory View source 1 Class Classes Asset dataclass Represents a static asset file (image, CSS, JS, etc.). 17 Caret Right Represents a static asset file (image, CSS, JS, etc.). Attributes Name Type Description source_path Path Path to the source asset file output_path Path | None Path where the asset will be copied asset_type str | None Type of asset (css, js, image, font, etc.) fingerprint str | None Hash-based fingerprint for cache busting minified bool Whether the asset has been minified optimized bool Whether the asset has been optimized bundled bool Whether CSS @import statements have been inlined logical_path Path | None _bundled_content str | None _minified_content str | None _optimized_image Any Methods 9 is_css_entry_point Check if this asset is a CSS entry point that should be bundled. Entry points … 0 bool Caret Right def is_css_entry_point(self) -> bool Check if this asset is a CSS entry point that should be bundled. Entry points are CSS files named 'style.css' at any level. These files typically contain @import statements that pull in other CSS. Returns bool — True if this is a CSS entry point (e.g., style.css) is_css_module Check if this asset is a CSS module (imported by an entry point). CSS modules … 0 bool Caret Right def is_css_module(self) -> bool Check if this asset is a CSS module (imported by an entry point). CSS modules are CSS files that are NOT entry points. They should be bundled into entry points, not copied separately. Returns bool — True if this is a CSS module (e.g., components/buttons.css) is_js_entry_point Check if this asset is a JS entry point for bundling. The JS bundle entry poin… 0 bool Caret Right def is_js_entry_point(self) -> bool Check if this asset is a JS entry point for bundling. The JS bundle entry point is named 'bundle.js' and contains all theme JavaScript concatenated together. Returns bool — True if this is a JS bundle entry point is_js_module Check if this asset is a JS module (should be bundled, not copied separately). … 0 bool Caret Right def is_js_module(self) -> bool Check if this asset is a JS module (should be bundled, not copied separately). JS modules are individual JS files that will be bundled into bundle.js. They should not be copied separately when bundling is enabled. Excludes: Third-party libraries (*.min.js) - copied separately for caching The bundle entry point itself Returns bool — True if this is a JS module that should be bundled minify Minify the asset (for CSS and JS). 0 Asset Caret Right def minify(self) -> Asset Minify the asset (for CSS and JS). Returns Asset — Self for method chaining bundle_css Bundle CSS by resolving all @import statements recursively. This creates a sin… 0 str Caret Right def bundle_css(self) -> str Bundle CSS by resolving all @import statements recursively. This creates a single CSS file from an entry point that has @imports. Works without any external dependencies. Preserves @layer blocks when bundling @import statements. Returns str — Bundled CSS content as a string hash Generate a hash-based fingerprint for the asset. 0 str Caret Right def hash(self) -> str Generate a hash-based fingerprint for the asset. Returns str — Hash string (first 8 characters of SHA256) optimize Optimize the asset (especially for images). 0 Asset Caret Right def optimize(self) -> Asset Optimize the asset (especially for images). Returns Asset — Self for method chaining copy_to_output Copy the asset to the output directory. 2 Path Caret Right def copy_to_output(self, output_dir: Path, use_fingerprint: bool = True) -> Path Copy the asset to the output directory. Parameters 2 output_dir Path Output directory path use_fingerprint bool Whether to include fingerprint in filename Returns Path — Path where the asset was copied Internal Methods 8 Caret Right __post_init__ Determine asset type from file extension. 0 None Caret Right def __post_init__(self) -> None Determine asset type from file extension. _determine_type Determine the asset type from the file extension. 0 str Caret Right def _determine_type(self) -> str Determine the asset type from the file extension. Returns str — Asset type string _minify_css Minify CSS content using simple, safe minifier. This minifier: - Removes comme… 0 None Caret Right def _minify_css(self) -> None Minify CSS content using simple, safe minifier. This minifier: Removes comments and unnecessary whitespace Transforms CSS nesting syntax for browser compatibility Preserves all other CSS syntax (@layer, @import, etc.) For CSS entry points (style.css), this should be called AFTER bundling. _minify_js Minify JavaScript content. 0 None Caret Right def _minify_js(self) -> None Minify JavaScript content. _hash_source_chunks Yield byte chunks representing the content that should drive fingerprinting. P… 0 Iterator[bytes] Caret Right def _hash_source_chunks(self) -> Iterator[bytes] Yield byte chunks representing the content that should drive fingerprinting. Prefers minified (or bundled) content so hashes match the bytes we actually emit. Falls back to the original file contents when no in-memory transform exists. Returns Iterator[bytes] _optimize_image Optimize image assets. 0 None Caret Right def _optimize_image(self) -> None Optimize image assets. _cleanup_old_fingerprints_prepare Remove outdated fingerprinted siblings before writing the new file. This ensur… 1 None Caret Right def _cleanup_old_fingerprints_prepare(self, output_dir: Path) -> None Remove outdated fingerprinted siblings before writing the new file. This ensures only one fingerprinted version exists at a time, preventing stale files from being served. Parameters 1 output_dir Path Output directory where assets are written __repr__ 0 str Caret Right def __repr__(self) -> str Returns str ← Previous asset Next → css_transforms 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: 1861 - Reading Time: 9 minutes