Add ability to pass posargs to pytest run in tox.ini (#2173)

[etc/vim.git] / src / black / __init__.py

diff --git a/src/black/__init__.py b/src/black/__init__.py
index efa82f41160ac12f1665052fc7ccfc459d71cdc0..1c69cc41cdce4f234efddcd55b1b0ec3c8781080 100644 (file)
--- a/src/black/__init__.py
+++ b/src/black/__init__.py
@@ -273,9 +273,9 @@ class Mode:
     target_versions: Set[TargetVersion] = field(default_factory=set)
     line_length: int = DEFAULT_LINE_LENGTH
     string_normalization: bool = True
     target_versions: Set[TargetVersion] = field(default_factory=set)
     line_length: int = DEFAULT_LINE_LENGTH
     string_normalization: bool = True

+    is_pyi: bool = False

     magic_trailing_comma: bool = True
     experimental_string_processing: bool = False
     magic_trailing_comma: bool = True
     experimental_string_processing: bool = False

-    is_pyi: bool = False

 
     def get_cache_key(self) -> str:
         if self.target_versions:
 
     def get_cache_key(self) -> str:
         if self.target_versions:


@@ -290,6 +290,8 @@ class Mode:
             str(self.line_length),
             str(int(self.string_normalization)),
             str(int(self.is_pyi)),
             str(self.line_length),
             str(int(self.string_normalization)),
             str(int(self.is_pyi)),

+            str(int(self.magic_trailing_comma)),
+            str(int(self.experimental_string_processing)),

         ]
         return ".".join(parts)
 
         ]
         return ".".join(parts)
 


@@ -309,8 +311,17 @@ def find_pyproject_toml(path_search_start: Tuple[str, ...]) -> Optional[str]:
     if path_pyproject_toml.is_file():
         return str(path_pyproject_toml)
 
     if path_pyproject_toml.is_file():
         return str(path_pyproject_toml)
 

-    path_user_pyproject_toml = find_user_pyproject_toml()
-    return str(path_user_pyproject_toml) if path_user_pyproject_toml.is_file() else None
+    try:
+        path_user_pyproject_toml = find_user_pyproject_toml()
+        return (
+            str(path_user_pyproject_toml)
+            if path_user_pyproject_toml.is_file()
+            else None
+        )
+    except PermissionError as e:
+        # We do not have access to the user-level config directory, so ignore it.
+        err(f"Ignoring user configuration directory due to {e!r}")
+        return None

 
 
 def parse_pyproject_toml(path_config: str) -> Dict[str, Any]:
 
 
 def parse_pyproject_toml(path_config: str) -> Dict[str, Any]:


@@ -1016,7 +1027,17 @@ def format_file_contents(src_contents: str, *, fast: bool, mode: Mode) -> FileCo
 
     if not fast:
         assert_equivalent(src_contents, dst_contents)
 
     if not fast:
         assert_equivalent(src_contents, dst_contents)

-        assert_stable(src_contents, dst_contents, mode=mode)
+
+        # Forced second pass to work around optional trailing commas (becoming
+        # forced trailing commas on pass 2) interacting differently with optional
+        # parentheses.  Admittedly ugly.
+        dst_contents_pass2 = format_str(dst_contents, mode=mode)
+        if dst_contents != dst_contents_pass2:
+            dst_contents = dst_contents_pass2
+            assert_equivalent(src_contents, dst_contents, pass_num=2)
+            assert_stable(src_contents, dst_contents, mode=mode)
+        # Note: no need to explicitly call `assert_stable` if `dst_contents` was
+        # the same as `dst_contents_pass2`.

     return dst_contents
 
 
     return dst_contents
 
 


@@ -2174,7 +2195,13 @@ class LineGenerator(Visitor[Line]):
                 if docstring[0] == quote_char:
                     docstring = " " + docstring
                 if docstring[-1] == quote_char:
                 if docstring[0] == quote_char:
                     docstring = " " + docstring
                 if docstring[-1] == quote_char:

-                    docstring = docstring + " "
+                    docstring += " "
+                if docstring[-1] == "\\":
+                    backslash_count = len(docstring) - len(docstring.rstrip("\\"))
+                    if backslash_count % 2:
+                        # Odd number of tailing backslashes, add some padding to
+                        # avoid escaping the closing string quote.
+                        docstring += " "

             else:
                 # Add some padding if the docstring is empty.
                 docstring = " "
             else:
                 # Add some padding if the docstring is empty.
                 docstring = " "


@@ -5351,15 +5378,10 @@ def normalize_numeric_literal(leaf: Leaf) -> None:
 
 def format_hex(text: str) -> str:
     """
 
 def format_hex(text: str) -> str:
     """

-    Formats a hexadecimal string like "0x12b3"
-
-    Uses lowercase because of similarity between "B" and "8", which
-    can cause security issues.
-    see: https://github.com/psf/black/issues/1692
+    Formats a hexadecimal string like "0x12B3"

     """
     """

-

     before, after = text[:2], text[2:]
     before, after = text[:2], text[2:]

-    return f"{before}{after.lower()}"
+    return f"{before}{after.upper()}"

 
 
 def format_scientific_notation(text: str) -> str:
 
 
 def format_scientific_notation(text: str) -> str:


@@ -5606,7 +5628,15 @@ def maybe_make_parens_invisible_in_atom(node: LN, parent: LN) -> bool:
         return False
 
     if is_walrus_assignment(node):
         return False
 
     if is_walrus_assignment(node):

-        if parent.type in [syms.annassign, syms.expr_stmt]:
+        if parent.type in [
+            syms.annassign,
+            syms.expr_stmt,
+            syms.assert_stmt,
+            syms.return_stmt,
+            # these ones aren't useful to end users, but they do please fuzzers
+            syms.for_stmt,
+            syms.del_stmt,
+        ]:

             return False
 
     first = node.children[0]
             return False
 
     first = node.children[0]


@@ -6466,12 +6496,22 @@ def _stringify_ast(
             # Constant strings may be indented across newlines, if they are
             # docstrings; fold spaces after newlines when comparing. Similarly,
             # trailing and leading space may be removed.
             # Constant strings may be indented across newlines, if they are
             # docstrings; fold spaces after newlines when comparing. Similarly,
             # trailing and leading space may be removed.

+            # Note that when formatting Python 2 code, at least with Windows
+            # line-endings, docstrings can end up here as bytes instead of
+            # str so make sure that we handle both cases.

             if (
                 isinstance(node, ast.Constant)
                 and field == "value"
             if (
                 isinstance(node, ast.Constant)
                 and field == "value"

-                and isinstance(value, str)
+                and isinstance(value, (str, bytes))

             ):
             ):

-                normalized = re.sub(r" *\n[ \t]*", "\n", value).strip()
+                lineend = "\n" if isinstance(value, str) else b"\n"
+                # To normalize, we strip any leading and trailing space from
+                # each line...
+                stripped = [line.strip() for line in value.splitlines()]
+                normalized = lineend.join(stripped)  # type: ignore[attr-defined]
+                # ...and remove any blank lines at the beginning and end of
+                # the whole string
+                normalized = normalized.strip()

             else:
                 normalized = value
             yield f"{'  ' * (depth+2)}{normalized!r},  # {value.__class__.__name__}"
             else:
                 normalized = value
             yield f"{'  ' * (depth+2)}{normalized!r},  # {value.__class__.__name__}"


@@ -6479,7 +6519,7 @@ def _stringify_ast(
     yield f"{'  ' * depth})  # /{node.__class__.__name__}"
 
 
     yield f"{'  ' * depth})  # /{node.__class__.__name__}"
 
 

-def assert_equivalent(src: str, dst: str) -> None:
+def assert_equivalent(src: str, dst: str, *, pass_num: int = 1) -> None:

     """Raise AssertionError if `src` and `dst` aren't equivalent."""
     try:
         src_ast = parse_ast(src)
     """Raise AssertionError if `src` and `dst` aren't equivalent."""
     try:
         src_ast = parse_ast(src)


@@ -6494,9 +6534,9 @@ def assert_equivalent(src: str, dst: str) -> None:
     except Exception as exc:
         log = dump_to_file("".join(traceback.format_tb(exc.__traceback__)), dst)
         raise AssertionError(
     except Exception as exc:
         log = dump_to_file("".join(traceback.format_tb(exc.__traceback__)), dst)
         raise AssertionError(

-            f"INTERNAL ERROR: Black produced invalid code: {exc}. Please report a bug"
-            " on https://github.com/psf/black/issues.  This invalid output might be"
-            f" helpful: {log}"
+            f"INTERNAL ERROR: Black produced invalid code on pass {pass_num}: {exc}. "
+            "Please report a bug on https://github.com/psf/black/issues.  "
+            f"This invalid output might be helpful: {log}"

         ) from None
 
     src_ast_str = "\n".join(_stringify_ast(src_ast))
         ) from None
 
     src_ast_str = "\n".join(_stringify_ast(src_ast))


@@ -6505,8 +6545,8 @@ def assert_equivalent(src: str, dst: str) -> None:
         log = dump_to_file(diff(src_ast_str, dst_ast_str, "src", "dst"))
         raise AssertionError(
             "INTERNAL ERROR: Black produced code that is not equivalent to the"
         log = dump_to_file(diff(src_ast_str, dst_ast_str, "src", "dst"))
         raise AssertionError(
             "INTERNAL ERROR: Black produced code that is not equivalent to the"

-            " source.  Please report a bug on https://github.com/psf/black/issues. "
-            f" This diff might be helpful: {log}"
+            f" source on pass {pass_num}.  Please report a bug on "
+            f"https://github.com/psf/black/issues.  This diff might be helpful: {log}"

         ) from None
 
 
         ) from None