Bug 1805839 - Do not auto-format mako.XY template files r=sheehan,linter-reviewers,sylvestre

The template syntax is incompatible with the host language syntax.

Differential Revision: https://phabricator.services.mozilla.com/D164786

.flake8

@@ -46,6 +46,9 @@ exclude =
     toolkit/moz.configure,
     toolkit/nss.configure,
 
+    # mako files are not really python files
+    *.mako.py,
+
     # These paths are intentionally excluded (not necessarily for good reason).
     build/moz.configure/*.configure,
     build/pymake/,

tools/lint/black.yml

@@ -3,7 +3,7 @@ black:
     description: Reformat python
     exclude:
         - gfx/harfbuzz/src/meson.build
-        - layout/style/ServoCSSPropList.mako.py
+        - '**/*.mako.py'
         - python/mozbuild/mozbuild/test/frontend/data/reader-error-syntax/moz.build
         - testing/mozharness/configs/test/test_malformed.py
         - testing/web-platform/tests

tools/lint/rustfmt.yml

@@ -11,6 +11,7 @@ rust:
         - gfx/wr/wr_malloc_size_of/
         - media/mp4parse-rust/
         - servo/
+        - '**/*.mako.rs'
     extensions:
         - rs
     support-files: