[libc-commits] [libc] [libc] Add some integration features into newhdrgen (PR #114272)

[Michael Jones via libc-commits]

================
@@ -252,30 +273,62 @@ def main():
     )
     args = parser.parse_args()
 
+    def write_to_file(path, contents):
+        if (
+            not args.write_if_changed
+            or not path.exists()
+            or path.read_text() != contents
+        ):
+            path.write_text(contents)
+
+    yaml_file = args.yaml_file
+    if args.h_def_file and not yaml_file:
+        libc_include_dir = args.libc_dir / "include"
+        libc_yaml_dir = args.libc_dir / "newhdrgen" / "yaml"
+        yaml_file = libc_yaml_dir / args.h_def_file.with_suffix("").with_suffix(
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michaelrj-google wrote:

How does this suffix stripping handle the `.h.def` file having effectively two suffixes? Does it strip both `.h` and `.def`?

https://github.com/llvm/llvm-project/pull/114272