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Fix unsafe cast in linegen.py w/ await yield handling (#3533)
[etc/vim.git] / src / black / __init__.py
index 7d7ddbe093017e80915b450a2f87a8b785c332b8..f24487fd398268f51d501b35cf3092b67cfb1cc7 100644 (file)
@@ -244,7 +244,7 @@ def validate_regex(
     multiple=True,
     help=(
         "When processing Jupyter Notebooks, add the given magic to the list"
-        f" of known python-magics ({', '.join(PYTHON_CELL_MAGICS)})."
+        f" of known python-magics ({', '.join(sorted(PYTHON_CELL_MAGICS))})."
         " Useful for formatting cells with custom python magics."
     ),
     default=[],
@@ -478,16 +478,20 @@ def main(  # noqa: C901
             )
 
             normalized = [
-                (source, source)
-                if source == "-"
-                else (normalize_path_maybe_ignore(Path(source), root), source)
+                (
+                    (source, source)
+                    if source == "-"
+                    else (normalize_path_maybe_ignore(Path(source), root), source)
+                )
                 for source in src
             ]
             srcs_string = ", ".join(
                 [
-                    f'"{_norm}"'
-                    if _norm
-                    else f'\033[31m"{source} (skipping - invalid)"\033[34m'
+                    (
+                        f'"{_norm}"'
+                        if _norm
+                        else f'\033[31m"{source} (skipping - invalid)"\033[34m'
+                    )
                     for _norm, source in normalized
                 ]
             )
@@ -511,6 +515,9 @@ def main(  # noqa: C901
                 out("Using configuration from project root.", fg="blue")
             else:
                 out(f"Using configuration in '{config}'.", fg="blue")
+            if ctx.default_map:
+                for param, value in ctx.default_map.items():
+                    out(f"{param}: {value}")
 
     error_msg = "Oh no! 💥 💔 💥"
     if (
@@ -630,7 +637,7 @@ def get_sources(
 
     using_default_exclude = exclude is None
     exclude = re_compile_maybe_verbose(DEFAULT_EXCLUDES) if exclude is None else exclude
-    gitignore: Optional[PathSpec] = None
+    gitignore: Optional[Dict[Path, PathSpec]] = None
     root_gitignore = get_gitignore(root)
 
     for s in src:
@@ -666,10 +673,11 @@ def get_sources(
 
             sources.add(p)
         elif p.is_dir():
+            p = root / normalize_path_maybe_ignore(p, ctx.obj["root"], report)
             if using_default_exclude:
                 gitignore = {
                     root: root_gitignore,
-                    root / p: get_gitignore(p),
+                    p: get_gitignore(p),
                 }
             sources.update(
                 gen_python_files(
@@ -1088,8 +1096,13 @@ def _format_str_once(src_contents: str, *, mode: Mode) -> str:
         future_imports = get_future_imports(src_node)
         versions = detect_target_versions(src_node, future_imports=future_imports)
 
+    context_manager_features = {
+        feature
+        for feature in {Feature.PARENTHESIZED_CONTEXT_MANAGERS}
+        if supports_feature(versions, feature)
+    }
     normalize_fmt_off(src_node, preview=mode.preview)
-    lines = LineGenerator(mode=mode)
+    lines = LineGenerator(mode=mode, features=context_manager_features)
     elt = EmptyLineTracker(mode=mode)
     split_line_features = {
         feature
@@ -1151,6 +1164,10 @@ def get_features_used(  # noqa: C901
     - relaxed decorator syntax;
     - usage of __future__ flags (annotations);
     - print / exec statements;
+    - parenthesized context managers;
+    - match statements;
+    - except* clause;
+    - variadic generics;
     """
     features: Set[Feature] = set()
     if future_imports:
@@ -1226,6 +1243,23 @@ def get_features_used(  # noqa: C901
         ):
             features.add(Feature.ANN_ASSIGN_EXTENDED_RHS)
 
+        elif (
+            n.type == syms.with_stmt
+            and len(n.children) > 2
+            and n.children[1].type == syms.atom
+        ):
+            atom_children = n.children[1].children
+            if (
+                len(atom_children) == 3
+                and atom_children[0].type == token.LPAR
+                and atom_children[1].type == syms.testlist_gexp
+                and atom_children[2].type == token.RPAR
+            ):
+                features.add(Feature.PARENTHESIZED_CONTEXT_MANAGERS)
+
+        elif n.type == syms.match_stmt:
+            features.add(Feature.PATTERN_MATCHING)
+
         elif (
             n.type == syms.except_clause
             and len(n.children) >= 2