computer-playbook/sphinx/extensions/local_subfolders.py

131 lines
4.8 KiB
Python

import os
from sphinx.util import logging
from .nav_utils import extract_headings_from_file, MAX_HEADING_LEVEL
logger = logging.getLogger(__name__)
CANDIDATES = ['index.rst', 'readme.md', 'main.rst']
def collect_folder_tree(dir_path, base_url):
"""
Recursively collects the folder tree starting from the given directory.
For each folder:
- Hidden folders (names starting with a dot) are skipped.
- A folder is processed only if it contains one of the representative files:
index.rst, index.md, readme.md, or readme.rst.
- The first heading of the representative file is used as the folder title.
- The representative file is not listed as a file in the folder.
- All other Markdown and reStructuredText files are listed without sub-headings,
using their first heading as the file title.
"""
# Skip hidden directories
if os.path.basename(dir_path).startswith('.'):
return None
# List all files in the current directory with .md or .rst extension
files = [f for f in os.listdir(dir_path)
if os.path.isfile(os.path.join(dir_path, f))
and (f.endswith('.md') or f.endswith('.rst'))]
# Find representative file for folder title using index or readme
rep_file = None
for candidate in CANDIDATES:
for f in files:
if f.lower() == candidate:
rep_file = f
break
if rep_file:
break
# Skip this folder if no representative file exists
if not rep_file:
return None
rep_path = os.path.join(dir_path, rep_file)
headings = extract_headings_from_file(rep_path, max_level=MAX_HEADING_LEVEL)
folder_title = headings[0]['text'] if headings else os.path.basename(dir_path)
folder_link = os.path.join(base_url, os.path.splitext(rep_file)[0])
# Remove the representative file from the list to avoid duplication,
# and filter out any additional "readme.md" or "index.rst" files.
files.remove(rep_file)
files = [f for f in files if f.lower() not in CANDIDATES]
# Process the remaining files in the current directory
file_items = []
for file in sorted(files, key=lambda s: s.lower()):
file_path = os.path.join(dir_path, file)
file_headings = extract_headings_from_file(file_path, max_level=MAX_HEADING_LEVEL)
file_title = file_headings[0]['text'] if file_headings else file
file_base = os.path.splitext(file)[0]
file_link = os.path.join(base_url, file_base)
file_items.append({
'level': 1,
'text': file_title,
'link': file_link,
'anchor': '',
'priority': 1,
'filename': file
})
# Process subdirectories (ignoring hidden ones)
dir_items = []
for item in sorted(os.listdir(dir_path), key=lambda s: s.lower()):
full_path = os.path.join(dir_path, item)
if os.path.isdir(full_path) and not item.startswith('.'):
subtree = collect_folder_tree(full_path, os.path.join(base_url, item))
if subtree:
dir_items.append(subtree)
# Combine files and subdirectories as children of the current folder
children = file_items + dir_items
return {
'text': folder_title,
'link': folder_link,
'children': children,
'filename': os.path.basename(dir_path)
}
def mark_current(node, active):
"""
Recursively mark nodes as current if the active page (pagename)
matches the node's link or is a descendant of it.
The function sets node['current'] = True if:
- The node's link matches the active page exactly, or
- The active page begins with the node's link plus a separator (indicating a child).
Additionally, if any child node is current, the parent is marked as current.
"""
is_current = False
node_link = node.get('link', '').rstrip('/')
active = active.rstrip('/')
if node_link and (active == node_link or active.startswith(node_link + '/')):
is_current = True
# Recurse into children if they exist
children = node.get('children', [])
for child in children:
if mark_current(child, active):
is_current = True
node['current'] = is_current
return is_current
def add_local_subfolders(app, pagename, templatename, context, doctree):
"""
Sets the 'local_subfolders' context variable with the entire folder tree
starting from app.srcdir, and marks the tree with the 'current' flag up
to the active page.
"""
root_dir = app.srcdir
folder_tree = collect_folder_tree(root_dir, '')
if folder_tree:
mark_current(folder_tree, pagename)
context['local_subfolders'] = [folder_tree] if folder_tree else []
def setup(app):
app.connect('html-page-context', add_local_subfolders)
return {'version': '0.1', 'parallel_read_safe': True}