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from functools import lru_cache
from pathlib import Path
from typing import Any, List, Union
import material
from mkdocs.config.defaults import MkDocsConfig
from mkdocs.structure.files import File, Files
from mkdocs.structure.nav import Link, Navigation, Section
from mkdocs.structure.pages import Page
non_translated_sections = [
"reference/",
"release-notes.md",
"fastapi-people.md",
"external-links.md",
"newsletter.md",
"management-tasks.md",
"management.md",
]
@lru_cache
def get_missing_translation_content(docs_dir: str) -> str:
docs_dir_path = Path(docs_dir)
missing_translation_path = docs_dir_path.parent.parent / "missing-translation.md"
return missing_translation_path.read_text(encoding="utf-8")
@lru_cache
def get_mkdocs_material_langs() -> List[str]:
material_path = Path(material.__file__).parent
material_langs_path = material_path / "templates" / "partials" / "languages"
langs = [file.stem for file in material_langs_path.glob("*.html")]
return langs
class EnFile(File):
pass
def on_config(config: MkDocsConfig, **kwargs: Any) -> MkDocsConfig:
available_langs = get_mkdocs_material_langs()
dir_path = Path(config.docs_dir)
lang = dir_path.parent.name
if lang in available_langs:
config.theme["language"] = lang
if not (config.site_url or "").endswith(f"{lang}/") and lang != "en":
config.site_url = f"{config.site_url}{lang}/"
return config
def resolve_file(*, item: str, files: Files, config: MkDocsConfig) -> None:
item_path = Path(config.docs_dir) / item
if not item_path.is_file():
en_src_dir = (Path(config.docs_dir) / "../../en/docs").resolve()
potential_path = en_src_dir / item
if potential_path.is_file():
files.append(
EnFile(
path=item,
src_dir=str(en_src_dir),
dest_dir=config.site_dir,
use_directory_urls=config.use_directory_urls,
)
)
def resolve_files(*, items: List[Any], files: Files, config: MkDocsConfig) -> None:
for item in items:
if isinstance(item, str):
resolve_file(item=item, files=files, config=config)
elif isinstance(item, dict):
assert len(item) == 1
values = list(item.values())
if not values:
continue
if isinstance(values[0], str):
resolve_file(item=values[0], files=files, config=config)
elif isinstance(values[0], list):
resolve_files(items=values[0], files=files, config=config)
else:
raise ValueError(f"Unexpected value: {values}")
def on_files(files: Files, *, config: MkDocsConfig) -> Files:
resolve_files(items=config.nav or [], files=files, config=config)
if "logo" in config.theme:
resolve_file(item=config.theme["logo"], files=files, config=config)
if "favicon" in config.theme:
resolve_file(item=config.theme["favicon"], files=files, config=config)
resolve_files(items=config.extra_css, files=files, config=config)
resolve_files(items=config.extra_javascript, files=files, config=config)
return files
def generate_renamed_section_items(
items: List[Union[Page, Section, Link]], *, config: MkDocsConfig
) -> List[Union[Page, Section, Link]]:
new_items: List[Union[Page, Section, Link]] = []
for item in items:
if isinstance(item, Section):
new_title = item.title
new_children = generate_renamed_section_items(item.children, config=config)
first_child = new_children[0]
if isinstance(first_child, Page):
if first_child.file.src_path.endswith("index.md"):
# Read the source so that the title is parsed and available
first_child.read_source(config=config)
new_title = first_child.title or new_title
# Creating a new section makes it render it collapsed by default
# no idea why, so, let's just modify the existing one
# new_section = Section(title=new_title, children=new_children)
item.title = new_title.split("{ #")[0]
item.children = new_children
new_items.append(item)
else:
new_items.append(item)
return new_items
def on_nav(
nav: Navigation, *, config: MkDocsConfig, files: Files, **kwargs: Any
) -> Navigation:
new_items = generate_renamed_section_items(nav.items, config=config)
return Navigation(items=new_items, pages=nav.pages)
def on_pre_page(page: Page, *, config: MkDocsConfig, files: Files) -> Page:
return page
def on_page_markdown(
markdown: str, *, page: Page, config: MkDocsConfig, files: Files
) -> str:
if isinstance(page.file, EnFile):
for excluded_section in non_translated_sections:
if page.file.src_path.startswith(excluded_section):
return markdown
missing_translation_content = get_missing_translation_content(config.docs_dir)
header = ""
body = markdown
if markdown.startswith("#"):
header, _, body = markdown.partition("\n\n")
return f"{header}\n\n{missing_translation_content}\n\n{body}"
return markdown
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