X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/8ebbd268880f15834b70910a6dc61e1ee7596b7c..ecb3d8c472a369bdf04ec22adad3ef4793183bc1:/black.py

diff --git a/black.py b/black.py
index 4599bdd..da00525 100644
--- a/black.py
+++ b/black.py
@@ -46,6 +46,10 @@ from blib2to3.pgen2.parse import ParseError
 
 __version__ = "18.5b1"
 DEFAULT_LINE_LENGTH = 88
+DEFAULT_EXCLUDES = (
+    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__))
 
 
@@ -138,6 +142,29 @@ class FileMode(Flag):
     help="How many character per line to allow.",
     show_default=True,
 )
+@click.option(
+    "--py36",
+    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]"
+    ),
+)
+@click.option(
+    "--pyi",
+    is_flag=True,
+    help=(
+        "Format all input files like typing stubs regardless of file extension "
+        "(useful when piping source on standard input)."
+    ),
+)
+@click.option(
+    "-S",
+    "--skip-string-normalization",
+    is_flag=True,
+    help="Don't normalize string quotes or prefixes.",
+)
 @click.option(
     "--check",
     is_flag=True,
@@ -158,37 +185,39 @@ class FileMode(Flag):
     help="If --fast given, skip temporary sanity checks. [default: --safe]",
 )
 @click.option(
-    "-q",
-    "--quiet",
-    is_flag=True,
+    "--include",
+    type=str,
+    default=DEFAULT_INCLUDES,
     help=(
-        "Don't emit non-error messages to stderr. Errors are still emitted, "
-        "silence those with 2>/dev/null."
+        "A regular expression that matches files and directories that should be "
+        "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,
 )
 @click.option(
-    "--pyi",
-    is_flag=True,
+    "--exclude",
+    type=str,
+    default=DEFAULT_EXCLUDES,
     help=(
-        "Consider all input files typing stubs regardless of file extension "
-        "(useful when piping source on standard input)."
+        "A regular expression that matches files and directories that should be "
+        "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(
-    "--py36",
+    "-q",
+    "--quiet",
     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]"
+        "Don't emit non-error messages to stderr. Errors are still emitted, "
+        "silence those with 2>/dev/null."
     ),
 )
-@click.option(
-    "-S",
-    "--skip-string-normalization",
-    is_flag=True,
-    help="Don't normalize string quotes or prefixes.",
-)
 @click.version_option(version=__version__)
 @click.argument(
     "src",
@@ -208,14 +237,26 @@ def main(
     py36: bool,
     skip_string_normalization: bool,
     quiet: bool,
+    include: str,
+    exclude: str,
     src: List[str],
 ) -> None:
     """The uncompromising code formatter."""
     sources: List[Path] = []
+    try:
+        include_regex = re.compile(include)
+    except re.error:
+        err(f"Invalid regular expression for include given: {include!r}")
+        ctx.exit(2)
+    try:
+        exclude_regex = re.compile(exclude)
+    except re.error:
+        err(f"Invalid regular expression for exclude given: {exclude!r}")
+        ctx.exit(2)
     for s in src:
         p = Path(s)
         if p.is_dir():
-            sources.extend(gen_python_files_in_dir(p))
+            sources.extend(gen_python_files_in_dir(p, include_regex, exclude_regex))
         elif p.is_file():
             # if a file was explicitly given, we don't care about its extension
             sources.append(p)
@@ -301,8 +342,8 @@ 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,
@@ -2750,33 +2791,27 @@ def get_future_imports(node: Node) -> Set[str]:
     return imports
 
 
-PYTHON_EXTENSIONS = {".py", ".pyi"}
-BLACKLISTED_DIRECTORIES = {
-    "build",
-    "buck-out",
-    "dist",
-    "_build",
-    ".git",
-    ".hg",
-    ".mypy_cache",
-    ".tox",
-    ".venv",
-}
-
-
-def gen_python_files_in_dir(path: Path) -> Iterator[Path]:
-    """Generate all files under `path` which aren't under BLACKLISTED_DIRECTORIES
-    and have one of the PYTHON_EXTENSIONS.
+def gen_python_files_in_dir(
+    path: 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.
     """
     for child in path.iterdir():
+        normalized_path = child.resolve().as_posix()
         if child.is_dir():
-            if child.name in BLACKLISTED_DIRECTORIES:
-                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)
+        if child.is_dir():
+            yield from gen_python_files_in_dir(child, include, exclude)
 
-        elif child.is_file() and child.suffix in PYTHON_EXTENSIONS:
-            yield child
+        elif child.is_file():
+            include_match = include.search(normalized_path)
+            if include_match:
+                yield child
 
 
 @dataclass