X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/51756a405cd6006ef22e9c12f212905fe0907f80..1aa14c5db05681a2c25b2c3757d3f8d8f3bbe85f:/black.py diff --git a/black.py b/black.py index ce4a44f..0dce397 100644 --- a/black.py +++ b/black.py @@ -47,7 +47,7 @@ from blib2to3.pgen2.parse import ParseError __version__ = "18.5b1" DEFAULT_LINE_LENGTH = 88 DEFAULT_EXCLUDES = ( - r"build/|buck-out/|dist/|_build/|\.git/|\.hg/|\.mypy_cache/|\.tox/|\.venv/" + r"/(\.git|\.hg|\.mypy_cache|\.tox|\.venv|_build|buck-out|build|dist)/" ) DEFAULT_INCLUDES = r"\.pyi?$" CACHE_DIR = Path(user_cache_dir("black", version=__version__)) @@ -143,55 +143,46 @@ class FileMode(Flag): show_default=True, ) @click.option( - "--check", + "--py36", is_flag=True, help=( - "Don't write the files back, just return the status. Return code 0 " - "means nothing would change. Return code 1 means some files would be " - "reformatted. Return code 123 means there was an internal error." + "Allow using Python 3.6-only syntax on all input files. This will put " + "trailing commas in function signatures and calls also after *args and " + "**kwargs. [default: per-file auto-detection]" ), ) @click.option( - "--diff", - is_flag=True, - help="Don't write the files back, just output a diff for each file on stdout.", -) -@click.option( - "--fast/--safe", + "--pyi", is_flag=True, - help="If --fast given, skip temporary sanity checks. [default: --safe]", + help=( + "Format all input files like typing stubs regardless of file extension " + "(useful when piping source on standard input)." + ), ) @click.option( - "-q", - "--quiet", + "-S", + "--skip-string-normalization", is_flag=True, - help=( - "Don't emit non-error messages to stderr. Errors are still emitted, " - "silence those with 2>/dev/null." - ), + help="Don't normalize string quotes or prefixes.", ) @click.option( - "--pyi", + "--check", is_flag=True, help=( - "Consider all input files typing stubs regardless of file extension " - "(useful when piping source on standard input)." + "Don't write the files back, just return the status. Return code 0 " + "means nothing would change. Return code 1 means some files would be " + "reformatted. Return code 123 means there was an internal error." ), ) @click.option( - "--py36", + "--diff", is_flag=True, - help=( - "Allow using Python 3.6-only syntax on all input files. This will put " - "trailing commas in function signatures and calls also after *args and " - "**kwargs. [default: per-file auto-detection]" - ), + help="Don't write the files back, just output a diff for each file on stdout.", ) @click.option( - "-S", - "--skip-string-normalization", + "--fast/--safe", is_flag=True, - help="Don't normalize string quotes or prefixes.", + help="If --fast given, skip temporary sanity checks. [default: --safe]", ) @click.option( "--include", @@ -199,8 +190,10 @@ class FileMode(Flag): default=DEFAULT_INCLUDES, help=( "A regular expression that matches files and directories that should be " - "included on recursive searches. On Windows, use forward slashes for " - "directories." + "included on recursive searches. An empty value means all files are " + "included regardless of the name. Use forward slashes for directories on " + "all platforms (Windows, too). Exclusions are calculated first, inclusions " + "later." ), show_default=True, ) @@ -210,11 +203,21 @@ class FileMode(Flag): default=DEFAULT_EXCLUDES, help=( "A regular expression that matches files and directories that should be " - "excluded on recursive searches. On Windows, use forward slashes for " - "directories." + "excluded on recursive searches. An empty value means no paths are excluded. " + "Use forward slashes for directories on all platforms (Windows, too). " + "Exclusions are calculated first, inclusions later." ), show_default=True, ) +@click.option( + "-q", + "--quiet", + is_flag=True, + help=( + "Don't emit non-error messages to stderr. Errors are still emitted, " + "silence those with 2>/dev/null." + ), +) @click.version_option(version=__version__) @click.argument( "src", @@ -250,15 +253,16 @@ def main( except re.error: err(f"Invalid regular expression for exclude given: {exclude!r}") ctx.exit(2) + root = find_project_root(src) for s in src: p = Path(s) if p.is_dir(): - sources.extend(gen_python_files_in_dir(p, include_regex, exclude_regex)) - elif p.is_file(): + sources.extend( + gen_python_files_in_dir(p, root, include_regex, exclude_regex) + ) + elif p.is_file() or s == "-": # if a file was explicitly given, we don't care about its extension sources.append(p) - elif s == "-": - sources.append(Path("-")) else: err(f"invalid path: {s}") @@ -339,8 +343,8 @@ def reformat_one( cache: Cache = {} if write_back != WriteBack.DIFF: cache = read_cache(line_length, mode) - src = src.resolve() - if src in cache and cache[src] == get_cache_info(src): + res_src = src.resolve() + if res_src in cache and cache[res_src] == get_cache_info(res_src): changed = Changed.CACHED if changed is not Changed.CACHED and format_file_in_place( src, @@ -2789,36 +2793,58 @@ def get_future_imports(node: Node) -> Set[str]: def gen_python_files_in_dir( - path: Path, include: Pattern[str], exclude: Pattern[str] + path: Path, root: Path, include: Pattern[str], exclude: Pattern[str] ) -> Iterator[Path]: """Generate all files under `path` whose paths are not excluded by the `exclude` regex, but are included by the `include` regex. """ - + assert root.is_absolute(), f"INTERNAL ERROR: `root` must be absolute but is {root}" for child in path.iterdir(): - searchable_path = str(child.as_posix()) - if Path(child.parts[0]).is_dir(): - searchable_path = "/" + searchable_path + normalized_path = child.resolve().relative_to(root).as_posix() if child.is_dir(): - searchable_path = searchable_path + "/" - exclude_match = exclude.search(searchable_path) - if exclude_match and len(exclude_match.group()) > 0: - continue + normalized_path += "/" + exclude_match = exclude.search(normalized_path) + if exclude_match and exclude_match.group(0): + continue - yield from gen_python_files_in_dir(child, include, exclude) + if child.is_dir(): + yield from gen_python_files_in_dir(child, root, include, exclude) - else: - include_match = include.search(searchable_path) - exclude_match = exclude.search(searchable_path) - if ( - child.is_file() - and include_match - and len(include_match.group()) > 0 - and (not exclude_match or len(exclude_match.group()) == 0) - ): + elif child.is_file(): + include_match = include.search(normalized_path) + if include_match: yield child +def find_project_root(srcs: List[str]) -> Path: + """Return a directory containing .git, .hg, or pyproject.toml. + + That directory can be one of the directories passed in `srcs` or their + common parent. + + If no directory in the tree contains a marker that would specify it's the + project root, the root of the file system is returned. + """ + if not srcs: + return Path("/").resolve() + + common_base = min(Path(src).resolve() for src in srcs) + if common_base.is_dir(): + # Append a fake file so `parents` below returns `common_base_dir`, too. + common_base /= "fake-file" + for directory in common_base.parents: + if (directory / ".git").is_dir(): + return directory + + if (directory / ".hg").is_dir(): + return directory + + if (directory / "pyproject.toml").is_file(): + return directory + + return directory + + @dataclass class Report: """Provides a reformatting counter. Can be rendered with `str(report)`."""