generate_html.py

generate_html.py is a Python script designed to generate static HTML files for hosting images on a web server. It traverses a specified root directory, creates thumbnail previews for images, and generates corresponding HTML files to display the images and subfolders in a user-friendly format.

Features

• Generate HTML Files: The script creates HTML files for each folder in the specified root directory.
• Thumbnail Creation: It generates thumbnail previews for supported image formats.
• Folder Navigation: The HTML files include navigation links to subfolders.
• Responsive Design: The generated HTML uses responsive design techniques to ensure the gallery looks good on different screen sizes.
• Non-Interactive Mode: It can run in a non-interactive mode suitable for automated workflows.
• License Information: Optionally include license information in the HTML files.
• Custom Author and Title: Allows specifying a custom author and title for the HTML files.
• CSS Theme Support: Allows specifying a custom CSS theme file for the HTML files.
• Folder Exclusion: Ability to exclude specific folders from processing.
• Selective File Extensions: Ability to specify which file extensions to include in the gallery.
• Ignore Other Files: Option to ignore files other than those specified by the included extensions.

Requirements

• Python 3.x
• numpy library
• tqdm library
• Jinja2 library
• ImageMagick

Installation

Install the required libraries using pip:

pip install numpy tqdm Jinja2

Usage

The script supports several command-line options to customize its behavior. Below is the list of available options:

./generate_html.py [-h] -p ROOT -w WEBROOT -t TITLE [-i ICON] [-r] [-n] [--use-fancy-folders] [-l LICENSE] [-a AUTHOR] [-e EXTENSION] [--theme-path THEME] [--ignore-other-files] [--exclude-folders EXCLUDE]

Options

• -h, --help: Show the help message and exit.
• -p ROOT, --root-directory ROOT: Specify the root folder where the images are stored. This option is required.
• -w WEBROOT, --web-root-url WEBROOT: Specify the web root URL where the images will be accessible. This option is required.
• -t TITLE, --site-title TITLE: Specify the title for the root directory HTML file. This option is required.
• -r, --regenerate-thumbnails: Regenerate thumbnails even if they already exist.
• -n, --non-interactive-mode: Disable interactive mode, which is useful for automated workflows.
• --use-fancy-folders: Use fancy folders instead of the default Apache directory listing.
• -l LICENSE, --license-type LICENSE: Specify a license for the content. Options are cc-zero, cc-by, cc-by-sa, cc-by-nd, cc-by-nc, cc-by-nc-sa, and cc-by-nc-nd.
• -a AUTHOR, --author-name AUTHOR: Specify the author of the content. Default is "Author".
• -e EXTENSION, --file-extensions EXTENSION: Specify file extensions to include. This option can be used multiple times.
• --theme-path THEME: Specify the path to a custom CSS theme file. Default is themes/default.css.
• --ignore-other-files: Ignore files other than those specified by the included extensions.
• --exclude-folder EXCLUDE: Exclude folders from processing. Only provide the basename of the folders you want to exclude. This option can be used multiple times.

Example

To generate HTML files and thumbnails for a directory /data/pictures and host them on https://pictures.example.com, run:

./generate_html.py -p /data/pictures -w https://pictures.example.com -t "My Photo Gallery"

To regenerate thumbnails and run in non-interactive mode:

./generate_html.py -p /data/pictures -w https://pictures.example.com -t "My Photo Gallery" -r -n

To include a license and author:

./generate_html.py -p /data/pictures -w https://pictures.example.com -t "My Photo Gallery" -l cc-by -a "John Doe"

To specify a custom CSS theme:

./generate_html.py -p /data/pictures -w https://pictures.example.com -t "My Photo Gallery" --theme-path custom_theme.css

To exclude specific folders and specify file extensions:

./generate_html.py -p /data/pictures -w https://pictures.example.com -t "My Photo Gallery" --exclude-folder Archives --exclude-folders Temp -e .jpg -e .jpeg -e .png

Notes

• The root and web root paths must point to the same folder, one on the filesystem and one on the web server. Use absolute paths.
• Ensure that ImageMagick is installed and accessible in your system for thumbnail generation.
• The script generates the preview thumbnails in a .thumbnails subdirectory within the root folder.
• The .lock file prevents multiple instances of the script from running simultaneously. Make sure to remove it if the script terminates unexpectedly.

License

This project is licensed under the AGPL-3.0 License. See the LICENSE file for details.