Switch the libc documentation site from the alabaster theme to Furo,
which provides mobile-friendly layout, a collapsible sidebar with
caption-based section grouping, and built-in "Edit this page" links.
Changes by area:
conf.py
- Switch html_theme to "furo"
- Add myst_parser extension (already in llvm/docs/requirements.txt, used
by LLDB/Clang/LLVM docs) to allow Markdown alongside RST
- Accept both .rst and .md source suffixes
- Configure Furo source_repository/source_branch/source_directory for
"Edit this page" links pointing to GitHub
- Wire _static/copybutton.{js,css} for copy-to-clipboard buttons on code
blocks (no new pip dependency; can migrate to sphinx-copybutton later
once it's in requirements-hashed.txt)
- Exclude plan-docs.md and Helpers/ from Sphinx processing
index.rst
- Rewrite landing page: remove apologetic "not fully complete" note, add
"What Works Today" section with concrete supported use cases, honest
caveat that full C stdlib coverage is still in progress
- Restructure hidden toctrees into five captioned sidebar groups: "Using
LLVM-libc", "Platforms" (GPU/UEFI promoted to top-level),
"Implementation Status", "Development", "Links"
New files
- docs/_static/copybutton.{js,css}: lightweight copy button for code
blocks
- docs/_static/custom.css: add status badge styles (.badge-complete
etc.) for use with Helpers/Styles.rst substitutions in later phases
Prepare for future status badges:
- docs/Helpers/Styles.rst: RST substitution definitions for status
badges (|Complete|, |Partial|, |InProgress|, |NotStarted|, |GPUOnly|,
|LinuxOnly|) — excluded from toctree, available for Phase 5+ pages
- docs/dev/building_docs.rst: new page covering prerequisites (with
Debian apt-first instructions), CMake flags, ninja docs-libc-html, the
docgen auto-generation pipeline, and troubleshooting
Removed
- docs/README.txt: stale file claiming Sphinx 1.1.3, not in any toctree;
superseded by docs/dev/building_docs.rst
Cleanups
- Remove redundant ".. contents:: Table of Contents" directives from 16
RST files (Furo renders its own per-page TOC in the sidebar)
- Remove same directive from libc/Maintainers.rst (pulled into docs via
include)
Add "using" and "status" sections to the sidebar to make getting these
easier.
Fixed mobile formatting not overflow left and right.
Tested:
Chrome on Desktop, using mobile restrictions in devtools.
Reviewed By: sivachandra
Differential Revision: https://reviews.llvm.org/D131369
This design is borrowed from the lldb folks (thank you!) to declutter
the page.
* The version number at the top is removed.
* Links are pushed over to a sidebar
* The sidebar has headings
There are other minor changes:
* The warning about this project not being ready is now an RST "warning"
* Links to the Bug Reports and the Source Code are Added
* Refer to this project as either "The LLVM C LIbrary" or "The libc"
Tested:
Built locally
Reviewed By: sivachandra
Differential Revision: https://reviews.llvm.org/D131242
