mirror of
https://fuchsia.googlesource.com/third_party/pigweed.googlesource.com/pigweed/pigweed
synced 2024-09-21 14:16:26 +00:00
baaa2d62a6
This change adds a module which builds documentation using Sphinx. Documentation files and assets are defined using a pw_doc_group GN template which lists out all of the sources as metadata. Another GN template, pw_doc_gen, collects the metadata from pw_doc_group targets into a JSON file and defines an action that runs a script to build the HTML docs. A docgen script is provided by the pw_docgen module. This script reads the JSON metadata file collected by a pw_doc_gen template, copies all of the source and resource files into a documentation tree, and runs Sphinx on the tree to render the docs as HTML. Change-Id: I97890f05d850d5119cbd3bbf48138cd82f22d56c
127 lines
5.3 KiB
Python
127 lines
5.3 KiB
Python
# Copyright 2019 The Pigweed Authors
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
|
|
# use this file except in compliance with the License. You may obtain a copy of
|
|
# the License at
|
|
#
|
|
# https://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
# License for the specific language governing permissions and limitations under
|
|
# the License.
|
|
|
|
"""Renders HTML documentation using Sphinx."""
|
|
|
|
# TODO(frolv): Figure out a solution for installing all library dependencies
|
|
# to run Sphinx and build RTD docs.
|
|
|
|
import argparse
|
|
import collections
|
|
import json
|
|
import os
|
|
import shutil
|
|
import subprocess
|
|
import sys
|
|
|
|
from typing import Dict, List, Tuple
|
|
|
|
SCRIPT_HEADER: str = '''
|
|
██████╗ ██╗ ██████╗ ██╗ ██╗███████╗███████╗██████╗ ██████╗ ██████╗ ██████╗███████╗
|
|
██╔══██╗██║██╔════╝ ██║ ██║██╔════╝██╔════╝██╔══██╗ ██╔══██╗██╔═══██╗██╔════╝██╔════╝
|
|
██████╔╝██║██║ ███╗██║ █╗ ██║█████╗ █████╗ ██║ ██║ ██║ ██║██║ ██║██║ ███████╗
|
|
██╔═══╝ ██║██║ ██║██║███╗██║██╔══╝ ██╔══╝ ██║ ██║ ██║ ██║██║ ██║██║ ╚════██║
|
|
██║ ██║╚██████╔╝╚███╔███╔╝███████╗███████╗██████╔╝ ██████╔╝╚██████╔╝╚██████╗███████║
|
|
╚═╝ ╚═╝ ╚═════╝ ╚══╝╚══╝ ╚══════╝╚══════╝╚═════╝ ╚═════╝ ╚═════╝ ╚═════╝╚══════╝
|
|
'''
|
|
|
|
|
|
def parse_args() -> argparse.Namespace:
|
|
"""Parses command-line arguments."""
|
|
|
|
parser = argparse.ArgumentParser(description=__doc__)
|
|
parser.add_argument('--sphinx-build-dir', type=str, required=True,
|
|
help='Directory in which to build docs')
|
|
parser.add_argument('--conf', type=str, required=True,
|
|
'Path to conf.py file for Sphinx')
|
|
parser.add_argument('--gn-root', type=str, required=True,
|
|
'Root of the GN build tree')
|
|
parser.add_argument('--index', type=str, required=True,
|
|
help='Path to root index.rst file')
|
|
parser.add_argument('--out-dir', type=str, required=True,
|
|
help='Output directory for rendered HTML docs')
|
|
parser.add_argument('metadata_file', type=argparse.FileType('r'))
|
|
return parser.parse_args()
|
|
|
|
|
|
def build_docs(src_dir: str, dst_dir: str) -> int:
|
|
"""Runs Sphinx to render HTML documentation from a doc tree."""
|
|
|
|
# TODO(frolv): Specify the Sphinx script from a prebuilts path instead of
|
|
# requiring it in the tree.
|
|
command = ['sphinx-build', '-b', 'html', '-d',
|
|
f'{dst_dir}/help', src_dir, f'{dst_dir}/html']
|
|
return subprocess.call(command)
|
|
|
|
|
|
def mkdir(dirname: str, exist_ok: bool = False) -> None:
|
|
"""Wrapper around os.makedirs that prints the operation."""
|
|
print(f'MKDIR {dirname}')
|
|
os.makedirs(dirname, exist_ok=exist_ok)
|
|
|
|
|
|
def copy(src: str, dst: str) -> None:
|
|
"""Wrapper around shutil.copy that prints the operation."""
|
|
print(f'COPY {src} -> {dst}')
|
|
shutil.copy(src, dst)
|
|
|
|
|
|
def copy_doc_tree(args: argparse.Namespace) -> None:
|
|
"""Copies doc source and input files into a build tree."""
|
|
|
|
def build_path(path):
|
|
"""Converts a source path to a filename in the build directory."""
|
|
return f'{args.sphinx_build_dir}/{path[len(args.gn_root):]}'
|
|
|
|
source_files = json.load(args.metadata_file)
|
|
copy_paths = [build_path(f) for f in source_files]
|
|
|
|
mkdir(args.sphinx_build_dir)
|
|
copy(args.index, f'{args.sphinx_build_dir}/index.rst')
|
|
copy(args.conf, f'{args.sphinx_build_dir}/conf.py')
|
|
|
|
# Map of directory path to list of source and destination file paths.
|
|
dirs: Dict[str, List[Tuple[str, str]]] = collections.defaultdict(list)
|
|
|
|
for source_file, copy_path in zip(source_files, copy_paths):
|
|
dirname = os.path.dirname(copy_path)
|
|
dirs[dirname].append((source_file, copy_path))
|
|
|
|
for directory, file_pairs in dirs.items():
|
|
mkdir(directory, exist_ok=True)
|
|
for src, dst in file_pairs:
|
|
copy(src, dst)
|
|
|
|
|
|
def main() -> int:
|
|
"""Script entry point."""
|
|
|
|
args = parse_args()
|
|
|
|
# Clear out any existing docs for the target.
|
|
if os.path.exists(args.sphinx_build_dir):
|
|
shutil.rmtree(args.sphinx_build_dir)
|
|
|
|
print(SCRIPT_HEADER)
|
|
copy_doc_tree(args)
|
|
|
|
# Flush all script output before running Sphinx.
|
|
print('-' * 80, flush=True)
|
|
|
|
return build_docs(args.sphinx_build_dir, args.out_dir)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
sys.exit(main())
|