# file_tracking URL: /api/cache/build_cache/file_tracking/ Section: build_cache -------------------------------------------------------------------------------- file_tracking - 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 Cache Build Cache 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 cache.build_cache.file_tracking File tracking mixin for BuildCache. Provides methods for tracking file changes, hashing, and dependency management. Used as a mixin by the main BuildCache class. Key Concepts: File fingerprints: mtime + size for fast change detection SHA256 hashing: Reliable content change detection Dependency tracking: Template, partial, and data file dependencies Output tracking: Source → output file mapping for cleanup Related Modules: bengal.cache.build_cache.core: Main BuildCache class bengal.orchestration.incremental: Incremental build logic View source 1 Class Classes FileTrackingMixin Mixin providing file tracking, hashing, and dependency management. Requires these attributes on th… 8 Caret Right Mixin providing file tracking, hashing, and dependency management. Requires these attributes on the host class: file_hashes: dict[str, str] file_fingerprints: dict[str, dict[str, Any]] dependencies: dict[str, set[str]] output_sources: dict[str, str] Attributes Name Type Description file_hashes dict[str, str] file_fingerprints dict[str, dict[str, Any]] dependencies dict[str, set[str]] output_sources dict[str, str] Methods 8 hash_file Generate SHA256 hash of a file. Delegates to centralized hash_file utility for… 1 str Caret Right def hash_file(self, file_path: Path) -> str Generate SHA256 hash of a file. Delegates to centralized hash_file utility for consistent behavior. Parameters 1 file_path Path Path to file Returns str — Hex string of SHA256 hash should_bypass Determine if cache should be bypassed for a source file. This is the single so… 2 bool Caret Right def should_bypass(self, source_path: Path, changed_sources: set[Path] | None = None) -> bool Determine if cache should be bypassed for a source file. This is the single source of truth for cache bypass decisions (RFC: rfc-incremental-hot-reload-invariants). Cache bypass is required when: File is in the changed_sources set (explicit change from file watcher) File hash differs from cached hash (is_changed check) Parameters 2 source_path Path Path to source file changed_sources set[Path] | None Set of paths explicitly marked as changed (from file watcher) Returns bool — True if cache should be bypassed, False if cache can be used is_changed Check if a file has changed since last build. Performance Optimization (RFC: o… 1 bool Caret Right def is_changed(self, file_path: Path) -> bool Check if a file has changed since last build. Performance Optimization (RFC: orchestrator-performance-improvements): Fast path: mtime + size check (single stat call, no file read) Slow path: SHA256 hash only when mtime/size mismatch detected Handles edge cases: touch/rsync may change mtime but not content Parameters 1 file_path Path Path to file Returns bool — True if file is new or has changed, False if unchanged update_file Update the fingerprint for a file (mtime + size + hash). Performance Optimizat… 1 None Caret Right def update_file(self, file_path: Path) -> None Update the fingerprint for a file (mtime + size + hash). Performance Optimization: Stores full fingerprint for fast change detection on subsequent builds. Uses mtime + size for fast path, hash for verification. Parameters 1 file_path Path Path to file track_output Track the relationship between a source file and its output file. This enables… 3 None Caret Right def track_output(self, source_path: Path, output_path: Path, output_dir: Path) -> None Track the relationship between a source file and its output file. This enables cleanup of output files when source files are deleted. Parameters 3 source_path Path Path to source file (e.g., content/blog/post.md) output_path Path Absolute path to output file (e.g., /path/to/public/blog/post/index.html) output_dir Path Site output directory (e.g., /path/to/public) add_dependency Record that a source file depends on another file. 2 None Caret Right def add_dependency(self, source: Path, dependency: Path) -> None Record that a source file depends on another file. Parameters 2 source Path Source file (e.g., content page) dependency Path Dependency file (e.g., template, partial, config) get_affected_pages Find all pages that depend on a changed file. 1 set[str] Caret Right def get_affected_pages(self, changed_file: Path) -> set[str] Find all pages that depend on a changed file. Parameters 1 changed_file Path File that changed Returns set[str] — Set of page paths that need to be rebuilt invalidate_file Remove a file from the cache (useful when file is deleted). Note: This is a pa… 1 None Caret Right def invalidate_file(self, file_path: Path) -> None Remove a file from the cache (useful when file is deleted). Note: This is a partial invalidation. Full invalidation of related caches (parsed_content, rendered_output, etc.) should be handled by the main BuildCache class. Parameters 1 file_path Path Path to file ← Previous core Next → fingerprint 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: 1617 - Reading Time: 8 minutes