From 9eb439c01d02bf0cb07d2a675b50166ac11f0ae3 Mon Sep 17 00:00:00 2001
From: Johannes Altmanninger <aclopte@gmail.com>
Date: Mon, 6 Oct 2025 13:21:08 +0200
Subject: [PATCH] Revert "Allow black to be missing in style.fish"

The root cause was that FISH_CHECK_LINT was not set. By
default, check.sh should fail if any tool is not installed, see
59b43986e9d (build_tools/style.fish: fail if formatters are not
available, 2025-07-24); like it does for rustfmt and clippy.

This reverts commit fbfd29d6d20429743d3755ff617ee2e11cfc61c6.

See #11884
---
 build_tools/style.fish | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/build_tools/style.fish b/build_tools/style.fish
index 369ac83ea..707246825 100755
--- a/build_tools/style.fish
+++ b/build_tools/style.fish
@@ -78,17 +78,17 @@ end
 if set -q python_files[1]
     if not type -q black
         echo
-        echo $yellow'Skipping python style checks - install `black` to style python'$normal
-    else
-        echo === Running "$green"black"$normal"
-        if set -l -q _flag_check
-            if not black --check $python_files
-                echo $red"Python files are not formatted correctly."$normal
-                exit 1
-            end
-        else
-            black $python_files
+        echo $yellow'Please install `black` to style python'$normal
+        exit 127
+    end
+    echo === Running "$green"black"$normal"
+    if set -l -q _flag_check
+        if not black --check $python_files
+            echo $red"Python files are not formatted correctly."$normal
+            exit 1
         end
+    else
+        black $python_files
     end
 end