Fix tests on windows (#159)

[etc/vim.git] / black.py

diff --git a/black.py b/black.py
index 49a5729f5881dcde54ab2fcb4fd4da2f7b7055e6..c77166a2a6c454486c564aa8ad0a3065e3d0edde 100644 (file)
--- a/black.py
+++ b/black.py
@@ -184,12 +184,8 @@ def main(
             sources.append(Path("-"))
         else:
             err(f"invalid path: {s}")
             sources.append(Path("-"))
         else:
             err(f"invalid path: {s}")

-    if check and diff:
-        exc = click.ClickException("Options --check and --diff are mutually exclusive")
-        exc.exit_code = 2
-        raise exc

 
 

-    if check:
+    if check and not diff:

         write_back = WriteBack.NO
     elif diff:
         write_back = WriteBack.DIFF
         write_back = WriteBack.NO
     elif diff:
         write_back = WriteBack.DIFF


@@ -200,7 +196,9 @@ def main(
         return
 
     elif len(sources) == 1:
         return
 
     elif len(sources) == 1:

-        return_code = reformat_one(sources[0], line_length, fast, quiet, write_back)
+        return_code = reformat_one(
+            sources[0], line_length, fast, quiet, write_back, check
+        )

     else:
         loop = asyncio.get_event_loop()
         executor = ProcessPoolExecutor(max_workers=os.cpu_count())
     else:
         loop = asyncio.get_event_loop()
         executor = ProcessPoolExecutor(max_workers=os.cpu_count())


@@ -208,7 +206,7 @@ def main(
         try:
             return_code = loop.run_until_complete(
                 schedule_formatting(
         try:
             return_code = loop.run_until_complete(
                 schedule_formatting(

-                    sources, line_length, write_back, fast, quiet, loop, executor
+                    sources, line_length, write_back, fast, quiet, loop, executor, check

                 )
             )
         finally:
                 )
             )
         finally:


@@ -217,14 +215,19 @@ def main(
 
 
 def reformat_one(
 
 
 def reformat_one(

-    src: Path, line_length: int, fast: bool, quiet: bool, write_back: WriteBack
+    src: Path,
+    line_length: int,
+    fast: bool,
+    quiet: bool,
+    write_back: WriteBack,
+    check: bool,

 ) -> int:
     """Reformat a single file under `src` without spawning child processes.
 
     If `quiet` is True, non-error messages are not output. `line_length`,
     `write_back`, and `fast` options are passed to :func:`format_file_in_place`.
     """
 ) -> int:
     """Reformat a single file under `src` without spawning child processes.
 
     If `quiet` is True, non-error messages are not output. `line_length`,
     `write_back`, and `fast` options are passed to :func:`format_file_in_place`.
     """

-    report = Report(check=write_back is WriteBack.NO, quiet=quiet)
+    report = Report(check=check, quiet=quiet)

     try:
         changed = Changed.NO
         if not src.is_file() and str(src) == "-":
     try:
         changed = Changed.NO
         if not src.is_file() and str(src) == "-":


@@ -262,6 +265,7 @@ async def schedule_formatting(
     quiet: bool,
     loop: BaseEventLoop,
     executor: Executor,
     quiet: bool,
     loop: BaseEventLoop,
     executor: Executor,

+    check: bool,

 ) -> int:
     """Run formatting of `sources` in parallel using the provided `executor`.
 
 ) -> int:
     """Run formatting of `sources` in parallel using the provided `executor`.
 


@@ -270,7 +274,7 @@ async def schedule_formatting(
     `line_length`, `write_back`, and `fast` options are passed to
     :func:`format_file_in_place`.
     """
     `line_length`, `write_back`, and `fast` options are passed to
     :func:`format_file_in_place`.
     """

-    report = Report(check=write_back is WriteBack.NO, quiet=quiet)
+    report = Report(check=check, quiet=quiet)

     cache: Cache = {}
     if write_back != WriteBack.DIFF:
         cache = read_cache()
     cache: Cache = {}
     if write_back != WriteBack.DIFF:
         cache = read_cache()


@@ -293,8 +297,12 @@ async def schedule_formatting(
             for src in sources
         }
         _task_values = list(tasks.values())
             for src in sources
         }
         _task_values = list(tasks.values())

-        loop.add_signal_handler(signal.SIGINT, cancel, _task_values)
-        loop.add_signal_handler(signal.SIGTERM, cancel, _task_values)
+        try:
+            loop.add_signal_handler(signal.SIGINT, cancel, _task_values)
+            loop.add_signal_handler(signal.SIGTERM, cancel, _task_values)
+        except NotImplementedError:
+            # There are no good alternatives for these on Windows
+            pass

         await asyncio.wait(_task_values)
         for src, task in tasks.items():
             if not task.done():
         await asyncio.wait(_task_values)
         for src, task in tasks.items():
             if not task.done():


@@ -605,6 +613,8 @@ class BracketTracker:
     bracket_match: Dict[Tuple[Depth, NodeType], Leaf] = Factory(dict)
     delimiters: Dict[LeafID, Priority] = Factory(dict)
     previous: Optional[Leaf] = None
     bracket_match: Dict[Tuple[Depth, NodeType], Leaf] = Factory(dict)
     delimiters: Dict[LeafID, Priority] = Factory(dict)
     previous: Optional[Leaf] = None

+    _for_loop_variable: bool = False
+    _lambda_arguments: bool = False

 
     def mark(self, leaf: Leaf) -> None:
         """Mark `leaf` with bracket-related metadata. Keep track of delimiters.
 
     def mark(self, leaf: Leaf) -> None:
         """Mark `leaf` with bracket-related metadata. Keep track of delimiters.


@@ -624,6 +634,8 @@ class BracketTracker:
         if leaf.type == token.COMMENT:
             return
 
         if leaf.type == token.COMMENT:
             return
 

+        self.maybe_decrement_after_for_loop_variable(leaf)
+        self.maybe_decrement_after_lambda_arguments(leaf)

         if leaf.type in CLOSING_BRACKETS:
             self.depth -= 1
             opening_bracket = self.bracket_match.pop((self.depth, leaf.type))
         if leaf.type in CLOSING_BRACKETS:
             self.depth -= 1
             opening_bracket = self.bracket_match.pop((self.depth, leaf.type))


@@ -641,6 +653,8 @@ class BracketTracker:
             self.bracket_match[self.depth, BRACKET[leaf.type]] = leaf
             self.depth += 1
         self.previous = leaf
             self.bracket_match[self.depth, BRACKET[leaf.type]] = leaf
             self.depth += 1
         self.previous = leaf

+        self.maybe_increment_lambda_arguments(leaf)
+        self.maybe_increment_for_loop_variable(leaf)

 
     def any_open_brackets(self) -> bool:
         """Return True if there is an yet unmatched open bracket on the line."""
 
     def any_open_brackets(self) -> bool:
         """Return True if there is an yet unmatched open bracket on the line."""


@@ -654,6 +668,50 @@ class BracketTracker:
         """
         return max(v for k, v in self.delimiters.items() if k not in exclude)
 
         """
         return max(v for k, v in self.delimiters.items() if k not in exclude)
 

+    def maybe_increment_for_loop_variable(self, leaf: Leaf) -> bool:
+        """In a for loop, or comprehension, the variables are often unpacks.
+
+        To avoid splitting on the comma in this situation, increase the depth of
+        tokens between `for` and `in`.
+        """
+        if leaf.type == token.NAME and leaf.value == "for":
+            self.depth += 1
+            self._for_loop_variable = True
+            return True
+
+        return False
+
+    def maybe_decrement_after_for_loop_variable(self, leaf: Leaf) -> bool:
+        """See `maybe_increment_for_loop_variable` above for explanation."""
+        if self._for_loop_variable and leaf.type == token.NAME and leaf.value == "in":
+            self.depth -= 1
+            self._for_loop_variable = False
+            return True
+
+        return False
+
+    def maybe_increment_lambda_arguments(self, leaf: Leaf) -> bool:
+        """In a lambda expression, there might be more than one argument.
+
+        To avoid splitting on the comma in this situation, increase the depth of
+        tokens between `lambda` and `:`.
+        """
+        if leaf.type == token.NAME and leaf.value == "lambda":
+            self.depth += 1
+            self._lambda_arguments = True
+            return True
+
+        return False
+
+    def maybe_decrement_after_lambda_arguments(self, leaf: Leaf) -> bool:
+        """See `maybe_increment_lambda_arguments` above for explanation."""
+        if self._lambda_arguments and leaf.type == token.COLON:
+            self.depth -= 1
+            self._lambda_arguments = False
+            return True
+
+        return False
+

 
 @dataclass
 class Line:
 
 @dataclass
 class Line:


@@ -664,8 +722,6 @@ class Line:
     comments: List[Tuple[Index, Leaf]] = Factory(list)
     bracket_tracker: BracketTracker = Factory(BracketTracker)
     inside_brackets: bool = False
     comments: List[Tuple[Index, Leaf]] = Factory(list)
     bracket_tracker: BracketTracker = Factory(BracketTracker)
     inside_brackets: bool = False

-    has_for: bool = False
-    _for_loop_variable: bool = False

 
     def append(self, leaf: Leaf, preformatted: bool = False) -> None:
         """Add a new `leaf` to the end of the line.
 
     def append(self, leaf: Leaf, preformatted: bool = False) -> None:
         """Add a new `leaf` to the end of the line.


@@ -686,10 +742,8 @@ class Line:
             # imports, for which we only preserve newlines.
             leaf.prefix += whitespace(leaf)
         if self.inside_brackets or not preformatted:
             # imports, for which we only preserve newlines.
             leaf.prefix += whitespace(leaf)
         if self.inside_brackets or not preformatted:

-            self.maybe_decrement_after_for_loop_variable(leaf)

             self.bracket_tracker.mark(leaf)
             self.maybe_remove_trailing_comma(leaf)
             self.bracket_tracker.mark(leaf)
             self.maybe_remove_trailing_comma(leaf)

-            self.maybe_increment_for_loop_variable(leaf)

 
         if not self.append_comment(leaf):
             self.leaves.append(leaf)
 
         if not self.append_comment(leaf):
             self.leaves.append(leaf)


@@ -836,29 +890,6 @@ class Line:
 
         return False
 
 
         return False
 

-    def maybe_increment_for_loop_variable(self, leaf: Leaf) -> bool:
-        """In a for loop, or comprehension, the variables are often unpacks.
-
-        To avoid splitting on the comma in this situation, increase the depth of
-        tokens between `for` and `in`.
-        """
-        if leaf.type == token.NAME and leaf.value == "for":
-            self.has_for = True
-            self.bracket_tracker.depth += 1
-            self._for_loop_variable = True
-            return True
-
-        return False
-
-    def maybe_decrement_after_for_loop_variable(self, leaf: Leaf) -> bool:
-        """See `maybe_increment_for_loop_variable` above for explanation."""
-        if self._for_loop_variable and leaf.type == token.NAME and leaf.value == "in":
-            self.bracket_tracker.depth -= 1
-            self._for_loop_variable = False
-            return True
-
-        return False
-

     def append_comment(self, comment: Leaf) -> bool:
         """Add an inline or standalone comment to the line."""
         if (
     def append_comment(self, comment: Leaf) -> bool:
         """Add an inline or standalone comment to the line."""
         if (