Kylian Schmidt
458 lines
13 KiB
Python
458 lines
13 KiB
Python
"""
|
|
Scientific Gallery Generator
|
|
|
|
This module generates static HTML galleries from scientific plot collections.
|
|
It converts PDF plots to PNG thumbnails, creates responsive web interfaces,
|
|
and organizes plots into hierarchical directory structures.
|
|
|
|
Features:
|
|
- PDF to PNG conversion with configurable DPI
|
|
- Incremental updates (only converts when source is newer)
|
|
- Jinja2 templating for consistent HTML generation
|
|
- Support for nested folder structures
|
|
- Responsive grid layout with search and navigation
|
|
"""
|
|
|
|
import subprocess
|
|
import shutil
|
|
from pathlib import Path
|
|
from typing import Dict, Any, Optional
|
|
from datetime import datetime
|
|
from jinja2 import Environment, FileSystemLoader
|
|
|
|
from utils.config import Config
|
|
from utils.metadata import (
|
|
load_folder_metadata,
|
|
merge_metadata,
|
|
resolve_metadata_for_plot,
|
|
save_metadata_cache,
|
|
get_metadata_file_path
|
|
)
|
|
|
|
|
|
CONFIG = Config.from_yaml("config.yaml")
|
|
|
|
|
|
def datetime_from_timestamp(timestamp: float) -> datetime:
|
|
"""Convert a Unix timestamp to a datetime object."""
|
|
return datetime.fromtimestamp(timestamp)
|
|
|
|
|
|
def strftime_filter(dt: datetime, fmt: str) -> str:
|
|
"""Format a datetime object using strftime."""
|
|
return dt.strftime(fmt)
|
|
|
|
|
|
env = Environment(loader=FileSystemLoader("."))
|
|
env.filters['datetime_from_timestamp'] = datetime_from_timestamp
|
|
env.filters['strftime'] = strftime_filter
|
|
template = env.get_template("templates/gallery.html")
|
|
|
|
|
|
def process_html_file(html_file: Path, web_dir: Path, current_metadata: Dict[str, Any] = None) -> dict:
|
|
"""
|
|
Process HTML plot file, copying it to web directory.
|
|
|
|
Args:
|
|
html_file: Path to the source HTML file
|
|
web_dir: Target web directory
|
|
current_metadata: Current metadata dictionary for the plot
|
|
|
|
Returns:
|
|
Dictionary containing plot information
|
|
"""
|
|
web_html = web_dir / html_file.name
|
|
|
|
if needs_update(html_file, web_html):
|
|
shutil.copy2(html_file, web_html)
|
|
else:
|
|
print(f"Skipping {html_file.name} (up to date)")
|
|
|
|
# Get source file creation time
|
|
source_creation_time = int(html_file.stat().st_ctime)
|
|
|
|
# Resolve metadata if provided
|
|
plot_metadata = {}
|
|
if current_metadata is not None:
|
|
plot_metadata = resolve_metadata_for_plot(html_file, current_metadata)
|
|
|
|
return {
|
|
"name": html_file.stem,
|
|
"html_href": html_file.name,
|
|
"is_html": True,
|
|
"metadata": plot_metadata,
|
|
"creation_time": source_creation_time
|
|
}
|
|
|
|
def process_plot_files(
|
|
plot_file: Path,
|
|
web_dir: Path,
|
|
current_metadata: Dict[str, Any] = None,
|
|
) -> dict:
|
|
"""
|
|
Process plot files (PDF/PNG or HTML), handling conversion and copying.
|
|
|
|
Args:
|
|
plot_file: Path to the source plot file (PDF or HTML)
|
|
web_dir: Target web directory
|
|
current_metadata: Current metadata dictionary for the plot
|
|
|
|
Returns:
|
|
Dictionary containing plot information
|
|
"""
|
|
if plot_file.suffix.lower() == '.html':
|
|
return process_html_file(plot_file, web_dir, current_metadata)
|
|
|
|
# Handle PDF files
|
|
png_file = plot_file.with_suffix(".png")
|
|
web_pdf = web_dir / plot_file.name
|
|
web_png = web_dir / png_file.name
|
|
|
|
if needs_update(plot_file, web_pdf):
|
|
shutil.copy2(plot_file, web_pdf)
|
|
else:
|
|
print(f"Skipping {plot_file.name} (up to date)")
|
|
|
|
if not png_file.exists():
|
|
convert_pdf_to_png(plot_file)
|
|
|
|
if needs_update(png_file, web_png):
|
|
shutil.copy2(png_file, web_png)
|
|
else:
|
|
print(f"Skipping {png_file.name} (up to date)")
|
|
|
|
source_creation_time = int(plot_file.stat().st_ctime)
|
|
|
|
plot_metadata = {}
|
|
if current_metadata is not None:
|
|
plot_metadata = resolve_metadata_for_plot(plot_file, current_metadata)
|
|
|
|
return {
|
|
"name": plot_file.stem,
|
|
"pdf_href": plot_file.name,
|
|
"png_href": png_file.name,
|
|
"is_html": False,
|
|
"metadata": plot_metadata,
|
|
"creation_time": source_creation_time
|
|
}
|
|
|
|
|
|
def render_gallery_page(
|
|
web_dir: Path,
|
|
items: list,
|
|
subdirs: list,
|
|
relative_path: Path,
|
|
title: str = None,
|
|
metadata: dict = None
|
|
) -> None:
|
|
"""
|
|
Unified template rendering for all gallery pages.
|
|
|
|
Args:
|
|
web_dir: Target web directory
|
|
items: List of plot items
|
|
subdirs: List of subdirectory names
|
|
relative_path: Relative path from gallery root
|
|
title: Page title (optional)
|
|
metadata: Metadata dictionary (optional)
|
|
"""
|
|
if title is None:
|
|
title = "Gallery" if relative_path == Path(
|
|
".") else f"Gallery: {relative_path}"
|
|
|
|
if metadata is None:
|
|
metadata = {}
|
|
|
|
# Calculate statistics
|
|
current_stats = calculate_directory_stats(web_dir)
|
|
stats = {
|
|
"file_count": len(items),
|
|
"folder_count": len(subdirs),
|
|
"total_size": format_file_size(current_stats["total_size"]),
|
|
"total_size_bytes": current_stats["total_size"]
|
|
}
|
|
|
|
# Calculate relative path to assets
|
|
if relative_path == Path("."):
|
|
assets_path = "../assets"
|
|
else:
|
|
depth = len(relative_path.parts)
|
|
assets_path = "../" * (depth + 1) + "assets"
|
|
|
|
# For root level, show only directory structure
|
|
if relative_path == Path("."):
|
|
items = []
|
|
|
|
output_html = web_dir / "index.html"
|
|
with output_html.open("w") as f:
|
|
rendered_html = template.render(
|
|
title=title,
|
|
items=items,
|
|
subdirs=subdirs,
|
|
relpath=str(relative_path),
|
|
paths=CONFIG.paths,
|
|
ui=CONFIG.ui,
|
|
stats=stats,
|
|
folder_metadata=metadata,
|
|
assets_path=assets_path,
|
|
source_dir=str(web_dir),
|
|
metadata_file_path=get_metadata_file_path(web_dir)
|
|
)
|
|
f.write(rendered_html)
|
|
|
|
print(f"Generated {output_html}")
|
|
|
|
|
|
def convert_pdf_to_png(pdf_path: Path) -> None:
|
|
"""
|
|
Convert a PDF file to PNG format using ImageMagick.
|
|
|
|
Only converts if the PNG doesn't exist or if the PDF is newer than
|
|
the PNG (with a 30-second buffer to handle filesystem timing issues).
|
|
|
|
Args:
|
|
pdf_path: Path to the source PDF file
|
|
|
|
Raises:
|
|
subprocess.CalledProcessError: If ImageMagick conversion fails
|
|
"""
|
|
png_path = pdf_path.with_suffix(".png")
|
|
|
|
if png_path.exists():
|
|
pdf_mtime = pdf_path.stat().st_mtime
|
|
png_mtime = png_path.stat().st_mtime
|
|
if png_mtime >= (pdf_mtime + 30):
|
|
return
|
|
else:
|
|
print(f"PDF {pdf_path.name} is newer than PNG, reconverting...")
|
|
|
|
print(f"Converting {pdf_path} to PNG")
|
|
subprocess.run([
|
|
"convert",
|
|
"-density", str(CONFIG.png_dpi),
|
|
str(pdf_path),
|
|
"-quality", "95",
|
|
str(png_path)
|
|
], check=True)
|
|
|
|
|
|
def needs_update(source_file: Path, target_file: Path) -> bool:
|
|
"""
|
|
Check if target file needs updating based on source modification time.
|
|
|
|
Args:
|
|
source_file: Path to the source file
|
|
target_file: Path to the target file
|
|
|
|
Returns:
|
|
True if target needs update, False otherwise
|
|
"""
|
|
if not target_file.exists():
|
|
return True
|
|
|
|
source_mtime = source_file.stat().st_mtime
|
|
target_mtime = target_file.stat().st_mtime
|
|
|
|
return source_mtime > (target_mtime + 30)
|
|
|
|
|
|
def build_gallery(
|
|
source_dir: Path,
|
|
web_dir: Path,
|
|
relative_path: Path = None,
|
|
inherited_metadata: Optional[Dict[str, Any]] = None,
|
|
) -> None:
|
|
"""
|
|
Recursively build gallery structure from source directory.
|
|
|
|
Processes all PDF files in the source directory, converts them to PNG,
|
|
copies both to the web directory, and generates index.html files with
|
|
navigation and thumbnails. Now includes metadata support.
|
|
|
|
Args:
|
|
source_dir: Source directory containing PDF files
|
|
web_dir: Target web directory for gallery output
|
|
relative_path: Relative path from gallery root (for navigation)
|
|
inherited_metadata: Metadata inherited from parent directories
|
|
"""
|
|
if relative_path is None:
|
|
relative_path = Path(".")
|
|
|
|
if inherited_metadata is None:
|
|
inherited_metadata = {}
|
|
|
|
folder_metadata = load_folder_metadata(source_dir)
|
|
current_metadata = merge_metadata(inherited_metadata, folder_metadata)
|
|
|
|
# Find all plot files (both PDF and HTML)
|
|
pdf_files = list(source_dir.glob("*.pdf"))
|
|
html_files = list(source_dir.glob("*.html"))
|
|
plot_files = pdf_files + html_files
|
|
|
|
items = []
|
|
plot_metadata_cache = {}
|
|
|
|
# Process all plot files (PDFs and HTMLs)
|
|
for plot_file in plot_files:
|
|
item = process_plot_files(plot_file, web_dir, current_metadata)
|
|
items.append(item)
|
|
plot_metadata_cache[plot_file.stem] = item["metadata"]
|
|
|
|
save_metadata_cache(web_dir, plot_metadata_cache)
|
|
|
|
subdirs = [d for d in source_dir.iterdir() if d.is_dir()]
|
|
subdir_names = []
|
|
for subdir in subdirs:
|
|
subdir_web = web_dir / subdir.name
|
|
subdir_web.mkdir(exist_ok=True)
|
|
subdir_relative = relative_path / subdir.name
|
|
build_gallery(subdir, subdir_web, subdir_relative, current_metadata)
|
|
subdir_names.append(subdir.name)
|
|
|
|
render_gallery_page(
|
|
web_dir=web_dir,
|
|
items=items,
|
|
subdirs=subdir_names,
|
|
relative_path=relative_path,
|
|
metadata=current_metadata
|
|
)
|
|
|
|
|
|
def calculate_directory_stats(directory: Path) -> dict:
|
|
"""
|
|
Calculate statistics for a directory.
|
|
|
|
Args:
|
|
directory: Path to the directory to analyze
|
|
|
|
Returns:
|
|
Dictionary containing file count, folder count, and total size
|
|
"""
|
|
stats = {
|
|
"file_count": 0,
|
|
"folder_count": 0,
|
|
"total_size": 0,
|
|
"pdf_size": 0,
|
|
"png_size": 0,
|
|
}
|
|
|
|
if not directory.exists():
|
|
return stats
|
|
|
|
for item in directory.rglob("*"):
|
|
if item.is_file():
|
|
stats["file_count"] += 1
|
|
size = item.stat().st_size
|
|
stats["total_size"] += size
|
|
|
|
if item.suffix.lower() == '.pdf':
|
|
stats["pdf_size"] += size
|
|
elif item.suffix.lower() == '.png':
|
|
stats["png_size"] += size
|
|
elif item.is_dir():
|
|
stats["folder_count"] += 1
|
|
|
|
return stats
|
|
|
|
|
|
def format_file_size(size_bytes: int) -> str:
|
|
"""
|
|
Format file size in human readable format.
|
|
|
|
Args:
|
|
size_bytes: Size in bytes
|
|
|
|
Returns:
|
|
Formatted size string
|
|
"""
|
|
if size_bytes == 0:
|
|
return "0 B"
|
|
|
|
size_names = ["B", "KB", "MB", "GB", "TB"]
|
|
size = float(size_bytes)
|
|
i = 0
|
|
while size >= 1024 and i < len(size_names) - 1:
|
|
size /= 1024
|
|
i += 1
|
|
|
|
return f"{size:.1f} {size_names[i]}"
|
|
|
|
|
|
def main(clean_first: bool = False) -> None:
|
|
"""
|
|
Main entry point for gallery generation.
|
|
|
|
Args:
|
|
clean_first: If True, removes and recreates the gallery directory
|
|
|
|
Processes all configured sources and generates the complete gallery
|
|
structure in the web directory. Ensures assets are available.
|
|
"""
|
|
gallery_root = Path(CONFIG.web_folder) / CONFIG.plot_root
|
|
|
|
if clean_first and gallery_root.exists():
|
|
print(f"Cleaning gallery directory {gallery_root}...")
|
|
shutil.rmtree(gallery_root)
|
|
|
|
gallery_root.mkdir(parents=True, exist_ok=True)
|
|
assets_src = Path("assets")
|
|
assets_dst = gallery_root.parent / "assets"
|
|
|
|
if assets_src.exists():
|
|
main_css_src = assets_src / "css" / "main.css"
|
|
main_css_dst = assets_dst / "css" / "main.css"
|
|
if not assets_dst.exists() or needs_update(main_css_src, main_css_dst):
|
|
if assets_dst.exists():
|
|
shutil.rmtree(assets_dst)
|
|
shutil.copytree(assets_src, assets_dst)
|
|
print(f"Updated assets from {assets_src} to {assets_dst}")
|
|
else:
|
|
print(f"Warning: Assets directory {assets_src} not found")
|
|
|
|
source_subdirs = []
|
|
|
|
for source in CONFIG.sources:
|
|
source_path = Path(source.path)
|
|
source_web_dir = gallery_root / source.name
|
|
source_web_dir.mkdir(parents=True, exist_ok=True)
|
|
source_subdirs.append(source.name)
|
|
|
|
if source_path.is_file() and source_path.suffix == '.pdf':
|
|
item = process_plot_files(source_path, source_web_dir)
|
|
render_gallery_page(
|
|
web_dir=source_web_dir,
|
|
items=[item],
|
|
subdirs=[],
|
|
relative_path=Path(source.name)
|
|
)
|
|
elif source_path.is_dir():
|
|
build_gallery(source_path, source_web_dir, Path(source.name))
|
|
else:
|
|
print(
|
|
f"Warning: Source {source.path} is neither a "
|
|
f"directory nor a PDF file. Skipping."
|
|
)
|
|
|
|
print(f"Processed {source.name}: {source.path}")
|
|
|
|
render_gallery_page(
|
|
web_dir=gallery_root,
|
|
items=[],
|
|
subdirs=source_subdirs,
|
|
relative_path=Path("."),
|
|
title="Gallery Root"
|
|
)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
import argparse
|
|
|
|
parser = argparse.ArgumentParser(description='Generate gallery')
|
|
parser.add_argument(
|
|
'--clean',
|
|
action='store_true',
|
|
help='Clean gallery directory before generation'
|
|
)
|
|
args = parser.parse_args()
|
|
main(clean_first=args.clean)
|