web/scripts/inject-chapter-navigation-footer

53 lines
No EOL
2.1 KiB
Python

#!/usr/bin/env python3
import argparse
import os
import html
import se
import se.se_epub
import se.easy_xml
# Require arguments
parser = argparse.ArgumentParser(description='A script to inject the navigation footer with links in the web version of a Standard Ebook')
parser.add_argument('ebook_dir', type=str, help='Path to the main directory of the ebook') # No trailing "/" on this path
parser.add_argument('book_url', type=str, help='The ebook URL') # No trailing "/" on this link
args = parser.parse_args()
ebook_dir = args.ebook_dir
book_url = args.book_url
# Make an instance of the SeEpub class so we can use helper functions to easily get spine
se_epub = se.se_epub.SeEpub(ebook_dir)
# Get spine paths
spine_paths = se_epub.spine_file_paths
# Make sure spine paths are of the form "text/chapter-1.xhtml", with no leading "/"
rel_spine_paths = [
'/'.join(str(path).split('/')[str(path).split('/').index('text'):]).lstrip('/') for path in spine_paths
]
# Get titles from spine
spine_titles = [se.easy_xml.EasyXmlTree(open(file_path).read()).xpath("//head/title/text()", True) for file_path in spine_paths]
# Make list of dicts containing title and relative path for each file
chapter_links = [{"title": title, "path": path} for title, path in zip(spine_titles, rel_spine_paths)]
# Create footers
for i, chapter_link in enumerate(chapter_links):
previousObj = chapter_links[i - 1] if i > 0 else None
nextObj = chapter_links[i + 1] if i < len(chapter_links) - 1 else None
fileName = os.path.join(ebook_dir, "src/epub", chapter_link["path"])
with open(fileName, 'r') as file:
chapter = file.read()
previousLink = f'<a href="{book_url}/{previousObj["path"]}" rel="prev"><i>Previous:</i> {html.escape(previousObj["title"])}</a>' if previousObj else ''
nextLink = f'<a href="{book_url}/{nextObj["path"]}" rel="next"><i>Next:</i> {html.escape(nextObj["title"])}</a>' if nextObj else ''
footer = f'<footer><ul><li>{previousLink}</li><li>{nextLink}</li></ul></footer>'
chapter = chapter.replace('</body>', f'{footer}</body>')
with open(fileName, 'w') as file:
file.write(chapter)