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Fix misdetection of project root with `--stdin-filename` (#3216)
authorShantanu <12621235+hauntsaninja@users.noreply.github.com>
Fri, 26 Aug 2022 21:07:25 +0000 (14:07 -0700)
committerGitHub <noreply@github.com>
Fri, 26 Aug 2022 21:07:25 +0000 (17:07 -0400)
There are a number of places this behaviour could be patched, for
instance, it's quite tempting to patch it in `get_sources`. However
I believe we generally have the invariant that project root contains all
files we want to format, in which case it seems prudent to keep that
invariant.

This also improves the accuracy of the "sources to be formatted" log
message with --stdin-filename.

Fixes GH-3207.

CHANGES.md
src/black/__init__.py
src/black/files.py
tests/test_black.py

index 39db0fb95b81341e4ea01bc8ccbbf2f2b55584ab..17659522fd188f621700ff8b13ede70f4fbdbba6 100644 (file)
@@ -40,6 +40,8 @@
 <!-- Changes to how Black can be configured -->
 
 - Black now uses the presence of debug f-strings to detect target version. (#3215)
 <!-- Changes to how Black can be configured -->
 
 - Black now uses the presence of debug f-strings to detect target version. (#3215)
+- Fix misdetection of project root and verbose logging of sources in cases involving
+  `--stdin-filename` (#3216)
 
 ### Documentation
 
 
 ### Documentation
 
index b8a9d03189617036ea4b49413ce1b99fd9e65480..a0c1ad4b41691e588e4e44285a0d2430cb2695ca 100644 (file)
@@ -469,7 +469,9 @@ def main(  # noqa: C901
         out(main.get_usage(ctx) + "\n\nOne of 'SRC' or 'code' is required.")
         ctx.exit(1)
 
         out(main.get_usage(ctx) + "\n\nOne of 'SRC' or 'code' is required.")
         ctx.exit(1)
 
-    root, method = find_project_root(src) if code is None else (None, None)
+    root, method = (
+        find_project_root(src, stdin_filename) if code is None else (None, None)
+    )
     ctx.obj["root"] = root
 
     if verbose:
     ctx.obj["root"] = root
 
     if verbose:
@@ -480,7 +482,9 @@ def main(  # noqa: C901
             )
 
             normalized = [
             )
 
             normalized = [
-                (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(
                 for source in src
             ]
             srcs_string = ", ".join(
index 17515d52b57b6427363f97526deffcbdbc6fdbb2..d51c1bc7a90231106540bdb7fcdadb115d626225 100644 (file)
@@ -39,7 +39,9 @@ if TYPE_CHECKING:
 
 
 @lru_cache()
 
 
 @lru_cache()
-def find_project_root(srcs: Sequence[str]) -> Tuple[Path, str]:
+def find_project_root(
+    srcs: Sequence[str], stdin_filename: Optional[str] = None
+) -> Tuple[Path, str]:
     """Return a directory containing .git, .hg, or pyproject.toml.
 
     That directory will be a common parent of all files and directories
     """Return a directory containing .git, .hg, or pyproject.toml.
 
     That directory will be a common parent of all files and directories
@@ -52,6 +54,8 @@ def find_project_root(srcs: Sequence[str]) -> Tuple[Path, str]:
     the second element as a string describing the method by which the
     project root was discovered.
     """
     the second element as a string describing the method by which the
     project root was discovered.
     """
+    if stdin_filename is not None:
+        srcs = tuple(stdin_filename if s == "-" else s for s in srcs)
     if not srcs:
         srcs = [str(Path.cwd().resolve())]
 
     if not srcs:
         srcs = [str(Path.cwd().resolve())]
 
index 81e7a9a7d0d43449cbf30ade83effb743d5eb9d8..c76b3faddf556e1bb114efb59296d132eb9f7f4d 100644 (file)
@@ -1396,6 +1396,12 @@ class BlackTestCase(BlackBaseTestCase):
                 (src_dir.resolve(), "pyproject.toml"),
             )
 
                 (src_dir.resolve(), "pyproject.toml"),
             )
 
+            with change_directory(test_dir):
+                self.assertEqual(
+                    black.find_project_root(("-",), stdin_filename="../src/a.py"),
+                    (src_dir.resolve(), "pyproject.toml"),
+                )
+
     @patch(
         "black.files.find_user_pyproject_toml",
     )
     @patch(
         "black.files.find_user_pyproject_toml",
     )