gitattribute: Mark generated files (GH-7619)

Marked files are collapsed by default in Github pull request.
https://github.com/github/linguistGH-generated-code
(cherry picked from commit c1897eda3d47b182977459a1e9fed4b3854a10a0)

Co-authored-by: INADA Naoki <methane@users.noreply.github.com>

diff --git a/.gitattributes b/.gitattributes
index 5eead66489830d12d76a67e100c63823d595f91b..e3dbd9d3a2fab733e9929b20da5775d50d0b53ab 100644 (file)
--- a/.gitattributes
+++ b/.gitattributes
@@ -39,3 +39,20 @@ Modules/zlib/zlib.map -text
 *.proj text eol=crlf
 PCbuild/readme.txt text eol=crlf
 PC/readme.txt text eol=crlf
+
+# Generated files
+# https://github.com/github/linguist#generated-code
+Include/graminit.h          linguist-generated=true
+Python/graminit.h           linguist-generated=true
+Modules/clinic/*.h          linguist-generated=true
+Objects/clinic/*.h          linguist-generated=true
+PC/clinic/*.h               linguist-generated=true
+Python/clinic/*.h           linguist-generated=true
+Python/importlib.h          linguist-generated=true
+Python/importlib_external.h linguist-generated=true
+Include/Python-ast.h        linguist-generated=true
+Python/Python-ast.c         linguist-generated=true
+Include/opcode.h            linguist-generated=true
+Python/opcode_targets.h     linguist-generated=true
+Objects/typeslots.inc       linguist-generated=true
+Modules/unicodedata_db.h    linguist-generated=true