From 0e073330ecfd631078fd9330004cf7c199ecab10 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Th=C3=A9ophile=20Bastian?= <contact@tobast.fr>
Date: Fri, 29 Jul 2022 01:49:00 +0200
Subject: [PATCH] Vim plugin: prefix messages with "Black: " (#3194)

As mentioned in GH-3185, when using Black as a Vim plugin, especially
automatically on save, the plugin's messages can be confusing, as
nothing indicates that they come from Black.
---
 CHANGES.md         | 2 ++
 autoload/black.vim | 6 +++---
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/CHANGES.md b/CHANGES.md
index 94c3bdda68e..e027b2cae71 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -46,6 +46,8 @@
 
 <!-- For example, Docker, GitHub Actions, pre-commit, editors -->
 
+- Vim plugin: prefix messages with `Black: ` so it's clear they come from Black (#3194)
+
 ### Output
 
 <!-- Changes to Black's terminal output and error messages -->
diff --git a/autoload/black.vim b/autoload/black.vim
index 6c381b431a3..ed657be7bd3 100644
--- a/autoload/black.vim
+++ b/autoload/black.vim
@@ -158,9 +158,9 @@ def Black(**kwargs):
     )
   except black.NothingChanged:
     if not quiet:
-      print(f'Already well formatted, good job. (took {time.time() - start:.4f}s)')
+      print(f'Black: already well formatted, good job. (took {time.time() - start:.4f}s)')
   except Exception as exc:
-    print(exc)
+    print(f'Black: {exc}')
   else:
     current_buffer = vim.current.window.buffer
     cursors = []
@@ -177,7 +177,7 @@ def Black(**kwargs):
       except vim.error:
         window.cursor = (len(window.buffer), 0)
     if not quiet:
-      print(f'Reformatted in {time.time() - start:.4f}s.')
+      print(f'Black: reformatted in {time.time() - start:.4f}s.')
 
 def get_configs():
   filename = vim.eval("@%")