From: Austin Glaser <austin.glaser@gmail.com>
Date: Sat, 12 Jun 2021 19:52:49 +0000 (-0700)
Subject: Find pyproject from vim relative to current file (#1871)
X-Git-Url: https://git.madduck.net/etc/vim.git/commitdiff_plain/4a007a881fa9d7757820657056aa376c05e49e9e?ds=inline;hp=aa31a117b16ed849710cf13cea5c064839beb29e

Find pyproject from vim relative to current file (#1871)

Commit history before merge:

* Find pyproject from vim relative to current file
* Merge remote-tracking branch 'upstream/main' into find-pyproject-vim
* Finish and fix this patch (thanks Matt Wozniski!)

Both the existing code and the proposed code are broken.
The vim.eval() call (whether it's vim.eval("@%") or
vim.eval("fnamemodify(getcwd(), ':t')) returns a string, and it passes
that string to find_pyproject_toml, which expects a sequence of strings,
not a single string, and - since a string is a sequence of single
character strings - it gets turned into a list of ridiculous paths. I
tested with a file called foo.py, and added a print(path_srcs) into
find_project_root, which printed out:

[
  PosixPath('/home/matt/f'),
  PosixPath('/home/matt/o'),
  PosixPath('/home/matt/o'),
  PosixPath('/home/matt'),
  PosixPath('/home/matt/p'),
  PosixPath('/home/matt/y')
]

This does work for an unnamed buffer, too - we wind up calling
black.find_pyproject_toml(("",)), and that winds up prepending the
working directory to any relative paths, so "" just gets turned into
the current working directory.

Note that find_pyproject_toml needs to be passed a 1-tuple, not a
list, because it requires something hashable (thanks to
functools.lru_cache being used)

Co-authored-by: Matt Wozniski <mwozniski@bloomberg.net>

* I forgot the CHANGELOG entry ... again
* I'm really bad at dealing with merge conflicts sometimes
* Be more correct describing search behaviour

Co-authored-by: Austin Glaser <austin.glaser@spacex.com>
Co-authored-by: Richard Si <63936253+ichard26@users.noreply.github.com>
Co-authored-by: Matt Wozniski <mwozniski@bloomberg.net>
---

diff --git a/CHANGES.md b/CHANGES.md
index d22062a..a5205ba 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -22,6 +22,11 @@
 - Fix handling of named escapes (`\N{...}`) when `--experimental-string-processing` is
   used (#2319)
 
+### Integrations
+
+- The vim plugin now searches upwards from the directory containing the current buffer
+  instead of the current working directory for pyproject.toml. (#1871)
+
 ## 21.5b2
 
 ### _Black_
diff --git a/autoload/black.vim b/autoload/black.vim
index f0357b0..0d93aa8 100644
--- a/autoload/black.vim
+++ b/autoload/black.vim
@@ -139,7 +139,8 @@ def Black():
       print(f'Reformatted in {time.time() - start:.4f}s.')
 
 def get_configs():
-  path_pyproject_toml = black.find_pyproject_toml(vim.eval("fnamemodify(getcwd(), ':t')"))
+  filename = vim.eval("@%")
+  path_pyproject_toml = black.find_pyproject_toml((filename,))
   if path_pyproject_toml:
     toml_config = black.parse_pyproject_toml(path_pyproject_toml)
   else: