Kylian Schmidt
114 lines
4.7 KiB
Markdown
114 lines
4.7 KiB
Markdown
# CLAUDE.md
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This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
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## What This Project Does
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A Python package that generates responsive static HTML galleries from scientific plot collections (PDFs and HTMLs). It converts PDFs to PNGs via ImageMagick, organizes plots hierarchically, propagates YAML/JSON metadata through directory trees, and renders everything via a Jinja2 template into a static website served from a web directory.
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## Commands
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```bash
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# Install the package (editable)
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pip install -e ".[dev]"
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# Run all tests
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pytest tests/
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# Run a single test file
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pytest tests/test_generate_gallery.py -v
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# Run a single test by name
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pytest tests/test_generate_gallery.py::test_needs_update_missing_target -v
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# Generate gallery
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gallery generate --verbose
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# Generate with a non-default config
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gallery --config config.yaml generate --verbose
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# Incremental update for one source only
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gallery generate --source /path/to/plots --verbose
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# Clean regeneration
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gallery generate --clean --verbose
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# Launch TUI
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gallery tui
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# Serve output locally
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python -m http.server 8000 -d /web/kschmidt/public_html/
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```
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Code style: black with `line-length = 120`.
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## Architecture
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### Execution Flow
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```
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generate() [api.py]
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└── copy_assets() [builder.py] — copies assets/ to web output dir
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└── get_template() [builder.py] — loads gallery/templates/gallery.html
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└── build_gallery() [builder.py] — recursive per-source-directory walk
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└── load_folder_metadata() [utils/metadata.py]
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└── merge_metadata() [utils/metadata.py] — inherits from parent
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└── process_plot_files() [utils/processing.py] — PDF→PNG, copy files
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└── save_metadata_cache() [utils/metadata.py]
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└── render_gallery_page() [utils/processing.py] — writes index.html
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└── recurse into subdirs
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```
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### Key Files
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| File | Role |
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|------|------|
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| `gallery/api.py` | `generate()` — primary public entry point; orchestrates everything |
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| `gallery/builder.py` | `build_gallery()` — recursive traversal; `get_template()`, `copy_assets()` |
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| `gallery/config/__init__.py` | `GalleryConfig`, `GallerySource`, `ConfigManager` dataclasses; YAML loading |
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| `gallery/cli.py` | CLI (`gallery` command) with subcommands: `generate`, `config`, `tui`, `install-completion` |
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| `gallery/tui.py` | TUI (`gallery tui`) built with Textual; interactive config editor + generation |
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| `gallery/utils/processing.py` | PDF→PNG via ImageMagick subprocess; `needs_update()` timestamp check; `render_gallery_page()` |
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| `gallery/utils/metadata.py` | Load/merge/cache YAML+JSON metadata; per-plot metadata resolution |
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| `gallery/utils/stats.py` | Directory size/count statistics |
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| `gallery/templates/gallery.html` | Single Jinja2 template for all gallery pages |
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| `gallery/assets/js/` | Vanilla JS modules loaded as ES modules; `GalleryApp` in `gallery-app.js` orchestrates all managers |
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| `gallery/assets/css/` | Modular CSS; `main.css` imports all others via `@import` |
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| `config.yaml` | Local deployment config (paths are machine-specific) |
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### Config File Format
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The YAML config uses a specific structure (not flat — must match `GalleryConfig.from_yaml()`):
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```yaml
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paths:
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web_folder: "/web/user/public_html" # required
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gallery:
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plot_root: "gallery"
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png_dpi: 400
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sources:
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- name: "my_plots"
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path: "/path/to/plots"
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metadata:
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cache_enabled: true
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inherit_from_parent: true
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```
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### Incremental Updates
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`needs_update(source, target)` uses a **30-second buffer** on mtime comparisons to handle filesystem timing. This is intentional — avoid tightening it.
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When `source_to_update` is passed to `generate()`, only that source's subdirectory is deleted and rebuilt; all other sources stay intact and the root index is re-rendered to include them.
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### Metadata Inheritance
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`metadata.yaml` (or `.yml`/`.json`) in any source directory is loaded and **merged with parent metadata** (`inherit_from_parent=True` by default). Child directories override parent keys. Per-plot overrides can live in `<plotname>.yaml` files alongside the plot.
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### Frontend (Static JS/CSS)
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The frontend is vanilla ES modules — no build step. `assets/js/main.js` imports `GalleryApp` from `gallery-app.js`, which instantiates all manager classes (`ThemeManager`, `SearchManager`, `NavigationManager`, etc.). Each manager is self-contained. The template embeds gallery data as JSON in the page; JS reads it at runtime.
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### Deployment
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The project ships a `Singularity.def` / `web.sif` Apptainer container for HPC environments. CI (`.gitlab-ci.yml`) builds the container and runs pytest inside it. For local development the `.venv` is sufficient.
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