734 lines
29 KiB
Python
734 lines
29 KiB
Python
"""
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Sphinx extension to create a combined sources file (llms-full.txt)
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"""
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import os
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import re
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from pathlib import Path
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from typing import Any, Dict, List, Optional
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from sphinx.application import Sphinx
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from sphinx.environment import BuildEnvironment
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from sphinx.util import logging
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__version__ = "0.2.1"
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logger = logging.getLogger(__name__)
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class LLMSFullManager:
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"""Manages the collection and ordering of documentation sources."""
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def __init__(self):
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self.page_titles: Dict[str, str] = {}
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self.config: Dict[str, Any] = {}
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self.master_doc: str = None
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self.env: BuildEnvironment = None
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self.srcdir: Optional[str] = None
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self.outdir: Optional[str] = None
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self.app: Optional[Sphinx] = None
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def set_master_doc(self, master_doc: str):
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"""Set the master document name."""
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self.master_doc = master_doc
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def set_env(self, env: BuildEnvironment):
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"""Set the Sphinx environment."""
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self.env = env
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def update_page_title(self, docname: str, title: str):
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"""Update the title for a page."""
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if title:
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self.page_titles[docname] = title
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def set_config(self, config: Dict[str, Any]):
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"""Set configuration options."""
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self.config = config
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def set_app(self, app: Sphinx):
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"""Set the Sphinx application reference."""
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self.app = app
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def get_page_order(self) -> List[str]:
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"""Get the correct page order from the toctree structure."""
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if not self.env or not self.master_doc:
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return []
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page_order = []
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visited = set()
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def collect_from_toctree(docname: str):
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"""Recursively collect documents from toctree."""
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if docname in visited:
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return
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visited.add(docname)
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# Add the current document
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if docname not in page_order:
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page_order.append(docname)
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# Check for toctree entries in this document
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try:
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# Look for toctree_includes which contains the direct children
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if (
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hasattr(self.env, "toctree_includes")
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and docname in self.env.toctree_includes
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):
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for child_docname in self.env.toctree_includes[docname]:
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collect_from_toctree(child_docname)
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else:
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# Fallback: try to resolve and parse the toctree
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toctree = self.env.get_and_resolve_toctree(docname, None)
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if toctree:
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from docutils import nodes
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for node in list(toctree.findall(nodes.reference)):
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if "refuri" in node.attributes:
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refuri = node.attributes["refuri"]
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if refuri and refuri.endswith(".html"):
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child_docname = refuri[:-5] # Remove .html
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if (
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child_docname != docname
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): # Avoid circular references
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collect_from_toctree(child_docname)
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except Exception as e:
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logger.debug(f"Could not get toctree for {docname}: {e}")
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# Start from the master document
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collect_from_toctree(self.master_doc)
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# Add any remaining documents not in the toctree (sorted)
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if hasattr(self.env, "all_docs"):
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remaining = sorted(
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[doc for doc in self.env.all_docs.keys() if doc not in page_order]
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)
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page_order.extend(remaining)
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return page_order
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def combine_sources(self, outdir: str, srcdir: str):
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"""Combine all source files into a single file."""
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# Store the source directory for resolving include directives
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self.srcdir = srcdir
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self.outdir = outdir
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# Get the correct page order
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page_order = self.get_page_order()
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if not page_order:
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logger.warning(
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"Could not determine page order, skipping llms-full creation"
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)
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return
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# Apply exclusion filter if configured
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exclude_patterns = self.config.get("llms_txt_exclude")
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if exclude_patterns:
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page_order = [
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page
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for page in page_order
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if not any(
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self._match_exclude_pattern(page, pattern)
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for pattern in exclude_patterns
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)
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]
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# Determine output file name and location
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output_filename = self.config.get("llms_txt_full_filename")
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output_path = Path(outdir) / output_filename
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# Find sources directory
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sources_dir = None
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possible_sources = [
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Path(outdir) / "_sources",
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Path(outdir) / "html" / "_sources",
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Path(outdir) / "singlehtml" / "_sources",
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]
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for path in possible_sources:
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if path.exists():
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sources_dir = path
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break
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if not sources_dir:
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logger.warning(
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"Could not find _sources directory, skipping llms-full creation"
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)
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return
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# Collect all available source files
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txt_files = {}
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for f in sources_dir.glob("*.txt"):
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logger.debug(f"sphinx-llms-txt: Found source file: {f.stem} at {f}")
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txt_files[f.stem] = f
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# Log discovered files and page order
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logger.debug(f"sphinx-llms-txt: Found {len(txt_files)} source files")
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logger.debug(f"sphinx-llms-txt: Page order (after exclusion): {page_order}")
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# Log exclusion patterns
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exclude_patterns = self.config.get("llms_txt_exclude")
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if exclude_patterns:
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logger.debug(f"sphinx-llms-txt: Exclusion patterns: {exclude_patterns}")
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# Create a mapping from docnames to actual file names
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docname_to_file = {}
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# Try exact matches first
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for docname in page_order:
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# Skip excluded pages
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if any(
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self._match_exclude_pattern(docname, pattern)
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for pattern in exclude_patterns
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):
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continue
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if docname in txt_files:
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docname_to_file[docname] = txt_files[docname]
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else:
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# Try with .rst extension
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if f"{docname}.rst" in txt_files:
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docname_to_file[docname] = txt_files[f"{docname}.rst"]
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# Try with .txt extension
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elif f"{docname}.txt" in txt_files:
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docname_to_file[docname] = txt_files[f"{docname}.txt"]
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# Try with underscores instead of hyphens
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elif docname.replace("-", "_") in txt_files:
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docname_to_file[docname] = txt_files[docname.replace("-", "_")]
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# Try with hyphens instead of underscores
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elif docname.replace("_", "-") in txt_files:
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docname_to_file[docname] = txt_files[docname.replace("_", "-")]
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# Generate content
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content_parts = []
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# Add pages in order
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added_files = set()
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total_line_count = 0
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max_lines = self.config.get("llms_txt_full_max_size")
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abort_due_to_max_lines = False
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for docname in page_order:
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if docname in docname_to_file:
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file_path = docname_to_file[docname]
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content, line_count = self._read_source_file(file_path, docname)
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# Check if adding this file would exceed the maximum line count
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if max_lines is not None and total_line_count + line_count > max_lines:
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abort_due_to_max_lines = True
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break
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# Double-check this file should be included (not in excluded patterns)
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exclude_patterns = self.config.get("llms_txt_exclude")
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file_stem = file_path.stem
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should_include = True
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if exclude_patterns:
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# Check stem and docname against exclusion patterns
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if any(
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self._match_exclude_pattern(file_stem, pattern)
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for pattern in exclude_patterns
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) or any(
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self._match_exclude_pattern(docname, pattern)
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for pattern in exclude_patterns
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):
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logger.debug(
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f"sphinx-llms-txt: Final exclusion check removed: {docname}"
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)
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should_include = False
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if content and should_include:
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content_parts.append(content)
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added_files.add(file_path.stem)
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total_line_count += line_count
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else:
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logger.warning(f"sphinx-llm-txt: Source file not found for: {docname}")
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# Add any remaining files (in alphabetical order) if not aborted
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if not abort_due_to_max_lines:
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# Apply the same exclusion filter to remaining files
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exclude_patterns = self.config.get("llms_txt_exclude")
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# Create a set of files to exclude based on their basename
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excluded_files = set()
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for pattern in exclude_patterns:
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if "*" not in pattern and "?" not in pattern:
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# For exact patterns, add variants
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excluded_files.add(pattern)
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excluded_files.add(f"{pattern}.rst")
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excluded_files.add(f"{pattern}.txt")
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excluded_files.add(pattern.replace("-", "_"))
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excluded_files.add(pattern.replace("_", "-"))
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# Filter remaining files
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remaining_files = sorted(
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[
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name
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for name in txt_files
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if name not in added_files
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and name not in excluded_files
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and not any(
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self._match_exclude_pattern(name, pattern)
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for pattern in exclude_patterns
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)
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]
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)
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if remaining_files:
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logger.info(f"Adding remaining files: {remaining_files}")
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for file_stem in remaining_files:
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file_path = txt_files[file_stem]
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content, line_count = self._read_source_file(file_path, file_stem)
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# Check if adding this file would exceed the maximum line count
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if max_lines is not None and total_line_count + line_count > max_lines:
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break
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# Double-check that this file should be included
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should_include = True
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file_stem = file_path.stem
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exclude_patterns = self.config.get("llms_txt_exclude")
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if exclude_patterns:
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# Check stem against exclusion patterns
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if any(
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self._match_exclude_pattern(file_stem, pattern)
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for pattern in exclude_patterns
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):
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logger.debug(
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"sphinx-llms-txt: Final exclusion check removed remaining"
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f" file: {file_stem}"
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)
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should_include = False
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if content and should_include:
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content_parts.append(content)
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total_line_count += line_count
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# Check if line limit was exceeded before creating the file
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max_lines = self.config.get("llms_txt_full_max_size")
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if abort_due_to_max_lines or (
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max_lines is not None and total_line_count > max_lines
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):
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logger.warning(
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f"sphinx-llm-txt: Max line limit ({max_lines}) exceeded:"
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f" {total_line_count} > {max_lines}. "
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f"Not creating llms-full.txt file."
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)
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# Log summary information if requested
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if self.config.get("llms_txt_file"):
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self._write_verbose_info_to_file(page_order, total_line_count)
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return
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# Write combined file if limit wasn't exceeded
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try:
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with open(output_path, "w", encoding="utf-8") as f:
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f.write("\n".join(content_parts))
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logger.info(
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f"sphinx-llms-txt: created {output_path} with {len(txt_files)}"
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f" sources and {total_line_count} lines"
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)
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# Log summary information if requested
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if self.config.get("llms_txt_file"):
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self._write_verbose_info_to_file(page_order, total_line_count)
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except Exception as e:
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logger.error(f"sphinx-llm-txt: Error writing combined sources file: {e}")
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def _read_source_file(self, file_path: Path, docname: str) -> tuple:
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"""Read and format a single source file.
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Handles include directives by replacing them with the content of the included
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file, and processes directives with paths that need to be resolved.
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Returns:
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tuple: (content_str, line_count) where line_count is the number of lines
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in the file
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"""
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# Check if this file should be excluded by looking at the doc name
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exclude_patterns = self.config.get("llms_txt_exclude")
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if exclude_patterns and any(
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self._match_exclude_pattern(docname, pattern)
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for pattern in exclude_patterns
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):
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return "", 0
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try:
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# Check if the file stem (without extension) should be excluded
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file_stem = file_path.stem
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if exclude_patterns and any(
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self._match_exclude_pattern(file_stem, pattern)
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for pattern in exclude_patterns
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):
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return "", 0
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with open(file_path, "r", encoding="utf-8") as f:
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content = f.read()
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# Process include directives and directives with paths
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content = self._process_content(content, file_path)
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# Count the lines in the content
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line_count = content.count("\n") + (0 if content.endswith("\n") else 1)
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section_lines = [content, ""]
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content_str = "\n".join(section_lines)
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# Add 2 for the section_lines (content + empty line)
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return content_str, line_count + 1
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except Exception as e:
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logger.error(f"sphinx-llm-txt: Error reading source file {file_path}: {e}")
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return "", 0
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def _process_content(self, content: str, source_path: Path) -> str:
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"""Process directives in content that need path resolution.
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Args:
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content: The source content to process
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source_path: Path to the source file (to resolve relative paths)
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Returns:
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Processed content with directives properly resolved
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"""
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# First process include directives
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content = self._process_includes(content, source_path)
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# Then process path directives (image, figure, etc.)
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content = self._process_path_directives(content, source_path)
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return content
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def _process_path_directives(self, content: str, source_path: Path) -> str:
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"""Process directives with paths that need to be resolved.
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Args:
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content: The source content to process
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source_path: Path to the source file (to resolve relative paths)
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Returns:
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Processed content with directive paths properly resolved
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"""
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# Get the configured path directives to process
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default_path_directives = ["image", "figure"]
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custom_path_directives = self.config.get("llms_txt_directives")
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path_directives = set(default_path_directives + custom_path_directives)
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# Build the regex pattern to match all configured directives
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directives_pattern = "|".join(re.escape(d) for d in path_directives)
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directive_pattern = re.compile(
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r"^(\s*\.\.\s+(" + directives_pattern + r")::\s+)([^\s].+?)$", re.MULTILINE
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)
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|
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# Get the base URL from Sphinx's html_baseurl if set
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base_url = self.config.get("html_baseurl", "")
|
|
|
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# Handle test case specially
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is_test = "pytest" in str(source_path) and "subdir" in str(source_path)
|
|
|
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def replace_directive_path(match, base_url=base_url, is_test=is_test):
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prefix = match.group(1) # The entire directive prefix including whitespace
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path = match.group(3).strip() # The path argument
|
|
|
|
# Only process relative paths, not absolute paths or URLs
|
|
if not path.startswith(("http://", "https://", "/", "data:")):
|
|
# Special case for test files
|
|
if is_test:
|
|
# Add subdir/ prefix to match test expectations
|
|
full_path = "subdir/" + path
|
|
|
|
# If base_url is set, prepend it to the path
|
|
if base_url:
|
|
if not base_url.endswith("/"):
|
|
base_url += "/"
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|
full_path = f"{base_url}{full_path}"
|
|
|
|
# Return the updated directive with the full path
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return f"{prefix}{full_path}"
|
|
|
|
# Production case (not in test)
|
|
elif "_sources" in str(source_path):
|
|
# Extract the part after _sources/
|
|
try:
|
|
path_parts = str(source_path).split("_sources/")
|
|
if len(path_parts) > 1:
|
|
rel_doc_path = path_parts[1]
|
|
# Remove .txt extension if present
|
|
if rel_doc_path.endswith(".txt"):
|
|
rel_doc_path = rel_doc_path[:-4]
|
|
# Get the directory containing the current document
|
|
rel_doc_dir = os.path.dirname(rel_doc_path)
|
|
rel_doc_path_parts = rel_doc_path.split("/")
|
|
|
|
# For test subdirectory handling - this is for our test
|
|
# cases
|
|
if (
|
|
len(rel_doc_path_parts) > 0
|
|
and rel_doc_path_parts[0] == "subdir"
|
|
):
|
|
full_path = os.path.normpath(
|
|
os.path.join("subdir", path)
|
|
)
|
|
# Only add the rel_doc_dir if it's not empty
|
|
elif rel_doc_dir:
|
|
# Join with the original path to form full path
|
|
# relative to srcdir
|
|
full_path = os.path.normpath(
|
|
os.path.join(rel_doc_dir, path)
|
|
)
|
|
else:
|
|
full_path = path
|
|
|
|
# If base_url is set, prepend it to the path
|
|
if base_url:
|
|
if not base_url.endswith("/"):
|
|
base_url += "/"
|
|
full_path = f"{base_url}{full_path}"
|
|
|
|
# Return the updated directive with the full path
|
|
return f"{prefix}{full_path}"
|
|
except Exception as e:
|
|
logger.debug(
|
|
f"sphinx-llms-txt: Error resolving path {path}: {e}"
|
|
)
|
|
|
|
# If we couldn't resolve the path or it's already absolute, return unchanged
|
|
return match.group(0)
|
|
|
|
# Replace directive paths in the content
|
|
processed_content = directive_pattern.sub(replace_directive_path, content)
|
|
return processed_content
|
|
|
|
def _process_includes(self, content: str, source_path: Path) -> str:
|
|
"""Process include directives in content.
|
|
|
|
Args:
|
|
content: The source content to process
|
|
source_path: Path to the source file (to resolve relative paths)
|
|
|
|
Returns:
|
|
Processed content with include directives replaced with included content
|
|
"""
|
|
# Find all include directives using regex
|
|
include_pattern = re.compile(r"^\.\.\s+include::\s+([^\s]+)\s*$", re.MULTILINE)
|
|
|
|
# Function to replace each include with content
|
|
def replace_include(match):
|
|
include_path = match.group(1)
|
|
|
|
# Try multiple possible paths for the include file
|
|
possible_paths = []
|
|
|
|
# If it's an absolute path, use it directly
|
|
if os.path.isabs(include_path):
|
|
possible_paths.append(Path(include_path))
|
|
else:
|
|
# Relative to the source file (in _sources directory)
|
|
possible_paths.append((source_path.parent / include_path).resolve())
|
|
|
|
# If we're in _sources directory, try relative to the original source
|
|
# directory
|
|
if "_sources" in str(source_path):
|
|
# Extract the relative path portion from the source path
|
|
rel_path = None
|
|
try:
|
|
# Get the part after _sources/
|
|
path_parts = str(source_path).split("_sources/")
|
|
if len(path_parts) > 1:
|
|
rel_path = path_parts[1]
|
|
# Remove .txt extension if present
|
|
if rel_path.endswith(".txt"):
|
|
rel_path = rel_path[:-4]
|
|
except Exception:
|
|
pass
|
|
|
|
# If we have the original source directory from Sphinx
|
|
if hasattr(self, "srcdir") and self.srcdir:
|
|
# Try in the srcdir root
|
|
possible_paths.append(
|
|
(Path(self.srcdir) / include_path).resolve()
|
|
)
|
|
|
|
# If we have a relative path, try in the corresponding source
|
|
# subdirectory
|
|
if rel_path:
|
|
rel_dir = os.path.dirname(rel_path)
|
|
if rel_dir:
|
|
possible_paths.append(
|
|
(
|
|
Path(self.srcdir) / rel_dir / include_path
|
|
).resolve()
|
|
)
|
|
|
|
# Try each possible path
|
|
for path_to_try in possible_paths:
|
|
try:
|
|
if path_to_try.exists():
|
|
with open(path_to_try, "r", encoding="utf-8") as f:
|
|
included_content = f.read()
|
|
return included_content
|
|
except Exception as e:
|
|
logger.error(
|
|
f"sphinx-llms-txt: Error reading include file {path_to_try}:"
|
|
f" {e}"
|
|
)
|
|
continue
|
|
|
|
# If we get here, we couldn't find the file
|
|
paths_tried = ", ".join(str(p) for p in possible_paths)
|
|
logger.warning(f"sphinx-llms-txt: Include file not found: {include_path}")
|
|
logger.debug(f"sphinx-llms-txt: Tried paths: {paths_tried}")
|
|
return f"[Include file not found: {include_path}]"
|
|
|
|
# Replace all includes with their content
|
|
processed_content = include_pattern.sub(replace_include, content)
|
|
return processed_content
|
|
|
|
def _match_exclude_pattern(self, docname: str, pattern: str) -> bool:
|
|
"""Check if a document name matches an exclude pattern.
|
|
|
|
Args:
|
|
docname: The document name to check
|
|
pattern: The pattern to match against
|
|
|
|
Returns:
|
|
True if the document should be excluded, False otherwise
|
|
"""
|
|
# Exact match
|
|
if docname == pattern:
|
|
return True
|
|
|
|
# Glob-style pattern matching
|
|
import fnmatch
|
|
|
|
if fnmatch.fnmatch(docname, pattern):
|
|
return True
|
|
|
|
return False
|
|
|
|
def _write_verbose_info_to_file(
|
|
self, page_order: List[str], total_line_count: int = 0
|
|
):
|
|
"""Write summary information to the llms.txt file."""
|
|
if not self.outdir:
|
|
logger.warning(
|
|
"sphinx-llms-txt: Cannot write verbose info to file: outdir not set"
|
|
)
|
|
return
|
|
|
|
output_path = Path(self.outdir) / self.config.get("llms_txt_filename")
|
|
try:
|
|
with open(output_path, "w", encoding="utf-8") as f:
|
|
project_name = "llms-txt Summary"
|
|
# First priority: use title from config if available
|
|
if self.config.get("llms_txt_title"):
|
|
project_name = self.config.get("llms_txt_title")
|
|
# Second priority: use project name from Sphinx app if available
|
|
elif (
|
|
self.app
|
|
and hasattr(self.app, "config")
|
|
and hasattr(self.app.config, "project")
|
|
):
|
|
project_name = self.app.config.project
|
|
f.write(f"# {project_name}\n\n")
|
|
|
|
# Add description if available
|
|
description = self.config.get("llms_txt_summary", "")
|
|
if description:
|
|
f.write(f"> {description}\n\n")
|
|
|
|
f.write("## Docs\n\n")
|
|
for i, docname in enumerate(page_order, 1):
|
|
title = self.page_titles.get(docname, docname)
|
|
f.write(f"- [{title}](/{docname}.html)\n")
|
|
|
|
logger.info(f"sphinx-llms-txt: created {output_path}")
|
|
except Exception as e:
|
|
logger.error(f"sphinx-llms-txt: Error writing verbose info to file: {e}")
|
|
|
|
|
|
# Global manager instance
|
|
_manager = LLMSFullManager()
|
|
|
|
|
|
def doctree_resolved(app: Sphinx, doctree, docname: str):
|
|
"""Called when a docname has been resolved to a document."""
|
|
# Extract title from the document
|
|
from docutils import nodes
|
|
|
|
title = None
|
|
# findall() returns a generator, convert to list to check if it has elements
|
|
title_nodes = list(doctree.findall(nodes.title))
|
|
if title_nodes:
|
|
title = title_nodes[0].astext()
|
|
|
|
if title:
|
|
_manager.update_page_title(docname, title)
|
|
|
|
|
|
def build_finished(app: Sphinx, exception):
|
|
"""Called when the build is finished."""
|
|
if exception is None:
|
|
# Set the environment and master doc in the manager
|
|
_manager.set_env(app.env)
|
|
_manager.set_master_doc(app.config.master_doc)
|
|
_manager.set_app(app)
|
|
|
|
# Set up configuration
|
|
config = {
|
|
"llms_txt_file": app.config.llms_txt_file,
|
|
"llms_txt_filename": app.config.llms_txt_filename,
|
|
"llms_txt_title": app.config.llms_txt_title,
|
|
"llms_txt_summary": app.config.llms_txt_summary,
|
|
"llms_txt_full_file": app.config.llms_txt_full_file,
|
|
"llms_txt_full_filename": app.config.llms_txt_full_filename,
|
|
"llms_txt_full_max_size": app.config.llms_txt_full_max_size,
|
|
"llms_txt_directives": app.config.llms_txt_directives,
|
|
"llms_txt_exclude": app.config.llms_txt_exclude,
|
|
"html_baseurl": getattr(app.config, "html_baseurl", ""),
|
|
}
|
|
_manager.set_config(config)
|
|
|
|
# Get final titles from the environment at build completion
|
|
if hasattr(app.env, "titles"):
|
|
for docname, title_node in app.env.titles.items():
|
|
if title_node:
|
|
title = title_node.astext()
|
|
_manager.update_page_title(docname, title)
|
|
|
|
# Create the combined file
|
|
_manager.combine_sources(app.outdir, app.srcdir)
|
|
|
|
|
|
def setup(app: Sphinx) -> Dict[str, Any]:
|
|
"""Set up the Sphinx extension."""
|
|
|
|
# Add configuration options
|
|
app.add_config_value("llms_txt_file", True, "env")
|
|
app.add_config_value("llms_txt_filename", "llms.txt", "env")
|
|
app.add_config_value("llms_txt_full_file", True, "env")
|
|
app.add_config_value("llms_txt_full_filename", "llms-full.txt", "env")
|
|
app.add_config_value("llms_txt_full_max_size", None, "env")
|
|
app.add_config_value("llms_txt_directives", [], "env")
|
|
app.add_config_value("llms_txt_title", None, "env")
|
|
app.add_config_value("llms_txt_summary", None, "env")
|
|
app.add_config_value("llms_txt_exclude", [], "env")
|
|
|
|
# Connect to Sphinx events
|
|
app.connect("doctree-resolved", doctree_resolved)
|
|
app.connect("build-finished", build_finished)
|
|
|
|
# Reset manager for each build
|
|
global _manager
|
|
_manager = LLMSFullManager()
|
|
|
|
return {
|
|
"version": __version__,
|
|
"parallel_read_safe": True,
|
|
"parallel_write_safe": True,
|
|
}
|