Files
ETPlot/gallery/api.py
T
Kylian Schmidt 6f0cf4521b Add support for incremental updates in gallery generation
- Introduced `source_to_update` parameter to selectively regenerate specific sources.
- Updated documentation to reflect new behavior for `clean_first` and `source_to_update`.
- Modified CLI and legacy CLI to handle source overrides appropriately.
2026-04-23 13:09:26 +02:00

295 lines
9.9 KiB
Python

"""
Main API for gallery generation.
Provides the primary entry point for programmatic gallery generation.
"""
import shutil
from pathlib import Path
from typing import Union, List, Dict, Any
from gallery.config import GalleryConfig, GallerySource
from gallery.builder import get_template, build_gallery, copy_assets
def generate(
config: Union[GalleryConfig, str, Path] = None,
web_folder: Union[str, Path] = None,
sources: List[Union[GallerySource, Dict[str, Any]]] = None,
clean_first: bool = False,
verbose: bool = False,
source_to_update: GallerySource = None,
) -> bool:
"""
Generate a scientific gallery from plot sources.
Can be called in two ways:
1. With a GalleryConfig object
2. With explicit parameters (web_folder and sources)
Args:
config: GalleryConfig object or path to YAML config file.
If this is provided, other args are ignored.
web_folder: Output directory for the gallery.
Required if config is not provided.
sources: List of GallerySource objects or dicts.
Required if config is not provided.
clean_first: If True, removes and recreates the gallery directory.
If False (default), performs incremental update.
verbose: If True, prints progress messages.
source_to_update: Optional specific source to update. When provided,
only this source is regenerated (incremental mode).
Other sources in config are preserved in the index.
Only effective when clean_first is False.
Returns:
True if gallery generation was successful, False otherwise
Raises:
ValueError: If required arguments are missing or invalid
TypeError: If config type is invalid
Example:
# Using GalleryConfig object
from gallery import generate, GalleryConfig, GallerySource
config = GalleryConfig(
web_folder="/output/path",
sources=[
GallerySource(name="plots", path="/path/to/plots"),
]
)
success = generate(config, verbose=True)
# Using explicit parameters
success = generate(
web_folder="/output/path",
sources=[
{"name": "plots", "path": "/path/to/plots"},
],
verbose=True
)
# Loading from YAML config
success = generate(config="config.yaml", verbose=True)
"""
try:
# Load or create configuration
if config is not None:
if isinstance(config, (str, Path)):
config = GalleryConfig.from_yaml(config)
elif not isinstance(config, GalleryConfig):
raise TypeError(
f"config must be GalleryConfig, str, or Path, "
f"got {type(config)}"
)
else:
if web_folder is None or sources is None:
raise ValueError(
"Either config or both web_folder and sources "
"must be provided"
)
config = GalleryConfig(
web_folder=web_folder,
sources=sources or []
)
# Validate configuration
if not config.sources:
if verbose:
print("Warning: No sources configured")
return False
# Check if web_folder is writable
web_folder_path = Path(config.web_folder)
if not _is_writable(web_folder_path):
if verbose:
print(
f"Error: Cannot write to web_folder: "
f"{config.web_folder}"
)
return False
# Create gallery root directory
gallery_root = web_folder_path / config.plot_root
if clean_first and gallery_root.exists():
if verbose:
print(f"Cleaning gallery directory {gallery_root}...")
try:
shutil.rmtree(gallery_root)
except Exception as e:
if verbose:
print(f"Warning: Could not clean directory: {e}")
return False
elif source_to_update and gallery_root.exists():
# Incremental mode: only clean the specific source subdirectory
source_subdir = gallery_root / source_to_update.name
if source_subdir.exists():
if verbose:
print(
f"Updating source directory {source_to_update.name}..."
)
try:
shutil.rmtree(source_subdir)
except Exception as e:
if verbose:
print(
f"Warning: Could not clean source subdirectory "
f"{source_subdir}: {e}"
)
return False
try:
gallery_root.mkdir(parents=True, exist_ok=True)
except Exception as e:
if verbose:
print(f"Error: Could not create gallery directory: {e}")
return False
# Copy assets
if not copy_assets(config, verbose=verbose):
if verbose:
print("Warning: Could not copy assets")
# Don't fail, continue with generation
# Get template
try:
template = get_template()
except Exception as e:
if verbose:
print(f"Error: Could not load template: {e}")
return False
# Process sources
source_subdirs = []
for source in config.sources:
# Skip sources not matching the update target (if specified)
if source_to_update and source.name != source_to_update.name:
# Still include them in the index if they exist
source_web_dir = gallery_root / source.name
if source_web_dir.exists():
source_subdirs.append(source.name)
continue
try:
source_path = Path(source.path).resolve()
# Validate source exists
if not source_path.exists():
if verbose:
print(
f"Warning: Source {source.path} does not exist. "
f"Skipping."
)
continue
source_web_dir = gallery_root / source.name
try:
source_web_dir.mkdir(parents=True, exist_ok=True)
except Exception as e:
if verbose:
print(
f"Warning: Could not create directory "
f"{source_web_dir}: {e}"
)
continue
source_subdirs.append(source.name)
# Process source
if source_path.is_file() and source_path.suffix == '.pdf':
# Single PDF file
from gallery.utils.processing import process_plot_files
item = process_plot_files(
config=config,
plot_file=source_path,
web_dir=source_web_dir,
)
from gallery.utils.processing import render_gallery_page
render_gallery_page(
config=config,
template=template,
web_dir=source_web_dir,
items=[item],
subdirs=[],
relative_path=Path(source.name)
)
elif source_path.is_dir():
# Directory of plots
build_gallery(
config,
source_path,
source_web_dir,
template,
Path(source.name)
)
else:
if verbose:
print(
f"Warning: Source {source.path} is neither a "
f"directory nor a PDF file. Skipping."
)
continue
if verbose:
print(f"Processed {source.name}: {source.path}")
except Exception as e:
if verbose:
print(
f"Warning: Error processing source "
f"{source.name}: {e}"
)
continue
# Render gallery root index
try:
from gallery.utils.processing import render_gallery_page
render_gallery_page(
config=config,
template=template,
web_dir=gallery_root,
items=[],
subdirs=source_subdirs,
relative_path=Path("."),
title="Gallery Root"
)
except Exception as e:
if verbose:
print(f"Warning: Could not render gallery root: {e}")
# Don't fail, gallery is still usable
if verbose:
print(f"✓ Gallery generated successfully at {gallery_root}")
return True
except Exception as e:
if verbose:
print(f"Error: Gallery generation failed: {e}")
return False
def _is_writable(path: Path) -> bool:
"""
Check if a path is writable.
Creates the directory if it doesn't exist.
Args:
path: Path to check
Returns:
True if writable, False otherwise
"""
try:
path.mkdir(parents=True, exist_ok=True)
# Try to create a test file
test_file = path / ".gallery_test"
test_file.touch()
test_file.unlink()
return True
except Exception:
return False