]> git.madduck.net Git - etc/vim.git/blobdiff - src/blackd/__init__.py

madduck's git repository

Every one of the projects in this repository is available at the canonical URL git://git.madduck.net/madduck/pub/<projectpath> — see each project's metadata for the exact URL.

All patches and comments are welcome. Please squash your changes to logical commits before using git-format-patch and git-send-email to patches@git.madduck.net. If you'd read over the Git project's submission guidelines and adhered to them, I'd be especially grateful.

SSH access, as well as push access can be individually arranged.

If you use my repositories frequently, consider adding the following snippet to ~/.gitconfig and using the third clone URL listed for each project:

[url "git://git.madduck.net/madduck/"]
  insteadOf = madduck:

Add SECURITY.md (#3612)
[etc/vim.git] / src / blackd / __init__.py
index e52a9917cf38a1da2a2cbce68a896f926245f1fe..ba4750b829836d803bea2e285c785b9e4094b9cb 100644 (file)
@@ -30,6 +30,7 @@ _stop_signal = asyncio.Event()
 PROTOCOL_VERSION_HEADER = "X-Protocol-Version"
 LINE_LENGTH_HEADER = "X-Line-Length"
 PYTHON_VARIANT_HEADER = "X-Python-Variant"
+SKIP_SOURCE_FIRST_LINE = "X-Skip-Source-First-Line"
 SKIP_STRING_NORMALIZATION_HEADER = "X-Skip-String-Normalization"
 SKIP_MAGIC_TRAILING_COMMA = "X-Skip-Magic-Trailing-Comma"
 PREVIEW = "X-Preview"
@@ -40,6 +41,7 @@ BLACK_HEADERS = [
     PROTOCOL_VERSION_HEADER,
     LINE_LENGTH_HEADER,
     PYTHON_VARIANT_HEADER,
+    SKIP_SOURCE_FIRST_LINE,
     SKIP_STRING_NORMALIZATION_HEADER,
     SKIP_MAGIC_TRAILING_COMMA,
     PREVIEW,
@@ -111,6 +113,9 @@ async def handle(request: web.Request, executor: Executor) -> web.Response:
         skip_magic_trailing_comma = bool(
             request.headers.get(SKIP_MAGIC_TRAILING_COMMA, False)
         )
+        skip_source_first_line = bool(
+            request.headers.get(SKIP_SOURCE_FIRST_LINE, False)
+        )
         preview = bool(request.headers.get(PREVIEW, False))
         fast = False
         if request.headers.get(FAST_OR_SAFE_HEADER, "safe") == "fast":
@@ -119,6 +124,7 @@ async def handle(request: web.Request, executor: Executor) -> web.Response:
             target_versions=versions,
             is_pyi=pyi,
             line_length=line_length,
+            skip_source_first_line=skip_source_first_line,
             string_normalization=not skip_string_normalization,
             magic_trailing_comma=not skip_magic_trailing_comma,
             preview=preview,
@@ -128,11 +134,28 @@ async def handle(request: web.Request, executor: Executor) -> web.Response:
         req_str = req_bytes.decode(charset)
         then = datetime.utcnow()
 
+        header = ""
+        if skip_source_first_line:
+            first_newline_position: int = req_str.find("\n") + 1
+            header = req_str[:first_newline_position]
+            req_str = req_str[first_newline_position:]
+
         loop = asyncio.get_event_loop()
         formatted_str = await loop.run_in_executor(
             executor, partial(black.format_file_contents, req_str, fast=fast, mode=mode)
         )
 
+        # Preserve CRLF line endings
+        if req_str[req_str.find("\n") - 1] == "\r":
+            formatted_str = formatted_str.replace("\n", "\r\n")
+            # If, after swapping line endings, nothing changed, then say so
+            if formatted_str == req_str:
+                raise black.NothingChanged
+
+        # Put the source first line back
+        req_str = header + req_str
+        formatted_str = header + formatted_str
+
         # Only output the diff in the HTTP response
         only_diff = bool(request.headers.get(DIFF_HEADER, False))
         if only_diff: