#
from pathlib import Path
import re
-import shutil
import string
+from typing import Callable, Dict, List, Optional, Pattern, Tuple, Set
+from dataclasses import dataclass
+import logging
from pkg_resources import get_distribution
-from recommonmark.parser import CommonMarkParser
+logging.basicConfig(format="%(levelname)s: %(message)s", level=logging.INFO)
+
+LOG = logging.getLogger(__name__)
CURRENT_DIR = Path(__file__).parent
+README = CURRENT_DIR / ".." / "README.md"
+REFERENCE_DIR = CURRENT_DIR / "reference"
+STATIC_DIR = CURRENT_DIR / "_static"
+
+
+@dataclass
+class SrcRange:
+ """Tracks which part of a file to get a section's content.
+
+ Data:
+ start_line: The line where the section starts (i.e. its sub-header) (inclusive).
+ end_line: The line where the section ends (usually next sub-header) (exclusive).
+ """
+
+ start_line: int
+ end_line: int
+
+
+@dataclass
+class DocSection:
+ """Tracks information about a section of documentation.
+ Data:
+ name: The section's name. This will used to detect duplicate sections.
+ src: The filepath to get its contents.
+ processors: The processors to run before writing the section to CURRENT_DIR.
+ out_filename: The filename to use when writing the section to CURRENT_DIR.
+ src_range: The line range of SRC to gets its contents.
+ """
-def make_pypi_svg(version):
- template = CURRENT_DIR / "_static" / "pypi_template.svg"
- target = CURRENT_DIR / "_static" / "pypi.svg"
+ name: str
+ src: Path
+ src_range: SrcRange = SrcRange(0, 1_000_000)
+ out_filename: str = ""
+ processors: Tuple[Callable, ...] = ()
+
+ def get_out_filename(self) -> str:
+ if not self.out_filename:
+ return self.name + ".md"
+ else:
+ return self.out_filename
+
+
+def make_pypi_svg(version: str) -> None:
+ template: Path = CURRENT_DIR / "_static" / "pypi_template.svg"
+ target: Path = CURRENT_DIR / "_static" / "pypi.svg"
with open(str(template), "r", encoding="utf8") as f:
- svg = string.Template(f.read()).substitute(version=version)
+ svg: str = string.Template(f.read()).substitute(version=version)
with open(str(target), "w", encoding="utf8") as f:
f.write(svg)
-def make_filename(line):
- non_letters = re.compile(r"[^a-z]+")
- filename = line[3:].rstrip().lower()
+def make_filename(line: str) -> str:
+ non_letters: Pattern = re.compile(r"[^a-z]+")
+ filename: str = line[3:].rstrip().lower()
filename = non_letters.sub("_", filename)
if filename.startswith("_"):
filename = filename[1:]
return filename + ".md"
-def generate_sections_from_readme():
- target_dir = CURRENT_DIR / "_build" / "generated"
- readme = CURRENT_DIR / ".." / "README.md"
- shutil.rmtree(str(target_dir), ignore_errors=True)
- target_dir.mkdir(parents=True)
-
- output = None
- target_dir = target_dir.relative_to(CURRENT_DIR)
- with open(str(readme), "r", encoding="utf8") as f:
- for line in f:
+def get_contents(section: DocSection) -> str:
+ """Gets the contents for the DocSection."""
+ contents: List[str] = []
+ src: Path = section.src
+ start_line: int = section.src_range.start_line
+ end_line: int = section.src_range.end_line
+ with open(src, "r", encoding="utf-8") as f:
+ for lineno, line in enumerate(f, start=1):
+ if lineno >= start_line and lineno < end_line:
+ contents.append(line)
+ result = "".join(contents)
+ # Let's make Prettier happy with the amount of trailing newlines in the sections.
+ if result.endswith("\n\n"):
+ result = result[:-1]
+ if not result.endswith("\n"):
+ result = result + "\n"
+ return result
+
+
+def get_sections_from_readme() -> List[DocSection]:
+ """Gets the sections from README so they can be processed by process_sections.
+
+ It opens README and goes down line by line looking for sub-header lines which
+ denotes a section. Once it finds a sub-header line, it will create a DocSection
+ object with all of the information currently available. Then on every line, it will
+ track the ending line index of the section. And it repeats this for every sub-header
+ line it finds.
+ """
+ sections: List[DocSection] = []
+ section: Optional[DocSection] = None
+ with open(README, "r", encoding="utf-8") as f:
+ for lineno, line in enumerate(f, start=1):
if line.startswith("## "):
- if output is not None:
- output.close()
filename = make_filename(line)
- output_path = CURRENT_DIR / filename
- if output_path.is_symlink() or output_path.is_file():
- output_path.unlink()
- output_path.symlink_to(target_dir / filename)
- output = open(str(output_path), "w", encoding="utf8")
- output.write(
- "[//]: # (NOTE: THIS FILE IS AUTOGENERATED FROM README.md)\n\n"
+ section_name = filename[:-3]
+ section = DocSection(
+ name=str(section_name),
+ src=README,
+ src_range=SrcRange(lineno, lineno),
+ out_filename=filename,
+ processors=(fix_headers,),
)
-
- if output is None:
- continue
-
- if line.startswith("##"):
- line = line[1:]
-
- output.write(line)
+ sections.append(section)
+ if section is not None:
+ section.src_range.end_line += 1
+ return sections
+
+
+def fix_headers(contents: str) -> str:
+ """Fixes the headers of sections copied from README.
+
+ Removes one octothorpe (#) from all headers since the contents are no longer nested
+ in a root document (i.e. the README).
+ """
+ lines: List[str] = contents.splitlines()
+ fixed_contents: List[str] = []
+ for line in lines:
+ if line.startswith("##"):
+ line = line[1:]
+ fixed_contents.append(line + "\n") # splitlines strips the leading newlines
+ return "".join(fixed_contents)
+
+
+def process_sections(
+ custom_sections: List[DocSection], readme_sections: List[DocSection]
+) -> None:
+ """Reads, processes, and writes sections to CURRENT_DIR.
+
+ For each section, the contents will be fetched, processed by processors
+ required by the section, and written to CURRENT_DIR. If it encounters duplicate
+ sections (i.e. shares the same name attribute), it will skip processing the
+ duplicates.
+
+ It processes custom sections before the README generated sections so sections in the
+ README can be overwritten with custom options.
+ """
+ processed_sections: Dict[str, DocSection] = {}
+ modified_files: Set[Path] = set()
+ sections: List[DocSection] = custom_sections
+ sections.extend(readme_sections)
+ for section in sections:
+ if section.name in processed_sections:
+ LOG.warning(
+ f"Skipping '{section.name}' from '{section.src}' as it is a duplicate"
+ f" of a custom section from '{processed_sections[section.name].src}'"
+ )
+ continue
+
+ LOG.info(f"Processing '{section.name}' from '{section.src}'")
+ target_path: Path = CURRENT_DIR / section.get_out_filename()
+ if target_path in modified_files:
+ LOG.warning(
+ f"{target_path} has been already written to, its contents will be"
+ " OVERWRITTEN and notices will be duplicated"
+ )
+ contents: str = get_contents(section)
+
+ # processors goes here
+ if fix_headers in section.processors:
+ contents = fix_headers(contents)
+
+ with open(target_path, "w", encoding="utf-8") as f:
+ if section.src.suffix == ".md" and section.src != target_path:
+ rel = section.src.resolve().relative_to(CURRENT_DIR.parent)
+ f.write(f'[//]: # "NOTE: THIS FILE WAS AUTOGENERATED FROM {rel}"\n\n')
+ f.write(contents)
+ processed_sections[section.name] = section
+ modified_files.add(target_path)
# -- Project information -----------------------------------------------------
project = "Black"
-copyright = "2018, Łukasz Langa and contributors to Black"
+copyright = "2020, Łukasz Langa and contributors to Black"
author = "Łukasz Langa and contributors to Black"
# Autopopulate version
version = release
for sp in "abcfr":
version = version.split(sp)[0]
+
+custom_sections = [
+ DocSection("the_black_code_style", CURRENT_DIR / "the_black_code_style.md"),
+ DocSection("editor_integration", CURRENT_DIR / "editor_integration.md"),
+ DocSection("blackd", CURRENT_DIR / "blackd.md"),
+ DocSection("black_primer", CURRENT_DIR / "black_primer.md"),
+ DocSection("contributing_to_black", CURRENT_DIR / ".." / "CONTRIBUTING.md"),
+]
+
+# Sphinx complains when there is a source file that isn't referenced in any of the docs.
+# Since some sections autogenerated from the README are unused warnings will appear.
+#
+# Sections must be listed to what their name is when passed through make_filename().
+blocklisted_sections_from_readme = {
+ "license",
+ "pragmatism",
+ "testimonials",
+ "used_by",
+ "change_log",
+}
+
make_pypi_svg(release)
-generate_sections_from_readme()
+readme_sections = get_sections_from_readme()
+readme_sections = [
+ x for x in readme_sections if x.name not in blocklisted_sections_from_readme
+]
+
+process_sections(custom_sections, readme_sections)
# -- General configuration ---------------------------------------------------
# If your documentation needs a minimal Sphinx version, state it here.
-#
-# needs_sphinx = '1.0'
+needs_sphinx = "3.0"
# Add any Sphinx extension module names here, as strings. They can be
# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
# ones.
-extensions = ["sphinx.ext.autodoc", "sphinx.ext.intersphinx", "sphinx.ext.napoleon"]
+extensions = [
+ "sphinx.ext.autodoc",
+ "sphinx.ext.intersphinx",
+ "sphinx.ext.napoleon",
+ "recommonmark",
+]
+
+# If you need extensions of a certain version or higher, list them here.
+needs_extensions = {"recommonmark": "0.5"}
# Add any paths that contain templates here, relative to this directory.
templates_path = ["_templates"]
-source_parsers = {".md": CommonMarkParser}
-
# The suffix(es) of source filenames.
# You can specify multiple suffix as a list of string:
source_suffix = [".rst", ".md"]
# List of patterns, relative to source directory, that match files and
# directories to ignore when looking for source files.
# This pattern also affects html_static_path and html_extra_path .
+
exclude_patterns = ["_build", "Thumbs.db", ".DS_Store"]
# The name of the Pygments (syntax highlighting) style to use.
"show_powered_by": True,
"fixed_sidebar": True,
"logo": "logo2.png",
- "travis_button": True,
}
projects / etc / vim.git / blobdiff