Update CHANGES.md for 21.5b2 release (#2290)

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

diff --git a/src/blackd/__init__.py b/src/blackd/__init__.py
index f77a5e8e7be49c0a5b881e22fe4401b5a36f221e..10b616894dabbaa566691f42bcfa5017c8dd6eef 100644 (file)
--- a/src/blackd/__init__.py
+++ b/src/blackd/__init__.py
@@ -22,6 +22,14 @@ except ImportError as ie:
 import black
 import click
 
+# If our environment has uvloop installed lets use it
+try:
+    import uvloop
+
+    uvloop.install()
+except ImportError:
+    pass
+
 from _black_version import version as __version__
 
 # This is used internally by tests to shut down the server prematurely
@@ -32,6 +40,7 @@ PROTOCOL_VERSION_HEADER = "X-Protocol-Version"
 LINE_LENGTH_HEADER = "X-Line-Length"
 PYTHON_VARIANT_HEADER = "X-Python-Variant"
 SKIP_STRING_NORMALIZATION_HEADER = "X-Skip-String-Normalization"
+SKIP_MAGIC_TRAILING_COMMA = "X-Skip-Magic-Trailing-Comma"
 FAST_OR_SAFE_HEADER = "X-Fast-Or-Safe"
 DIFF_HEADER = "X-Diff"
 
@@ -40,6 +49,7 @@ BLACK_HEADERS = [
     LINE_LENGTH_HEADER,
     PYTHON_VARIANT_HEADER,
     SKIP_STRING_NORMALIZATION_HEADER,
+    SKIP_MAGIC_TRAILING_COMMA,
     FAST_OR_SAFE_HEADER,
     DIFF_HEADER,
 ]
@@ -114,6 +124,9 @@ async def handle(request: web.Request, executor: Executor) -> web.Response:
         skip_string_normalization = bool(
             request.headers.get(SKIP_STRING_NORMALIZATION_HEADER, False)
         )
+        skip_magic_trailing_comma = bool(
+            request.headers.get(SKIP_MAGIC_TRAILING_COMMA, False)
+        )
         fast = False
         if request.headers.get(FAST_OR_SAFE_HEADER, "safe") == "fast":
             fast = True
@@ -122,6 +135,7 @@ async def handle(request: web.Request, executor: Executor) -> web.Response:
             is_pyi=pyi,
             line_length=line_length,
             string_normalization=not skip_string_normalization,
+            magic_trailing_comma=not skip_magic_trailing_comma,
         )
         req_bytes = await request.content.read()
         charset = request.charset if request.charset is not None else "utf8"