1 files changed, 40 insertions, 0 deletions
diff --git a/build/clang-plugin/ThirdPartyPaths.py b/build/clang-plugin/ThirdPartyPaths.py
new file mode 100644
index 0000000000..caaa919d43
--- /dev/null
+++ b/build/clang-plugin/ThirdPartyPaths.py
@@ -0,0 +1,40 @@
+#!/usr/bin/env python3
+
+import json
+
+
+def generate(output, *input_paths):
+    """
+    This file generates a ThirdPartyPaths.cpp file from the ThirdPartyPaths.txt
+    file in /tools/rewriting, which is used by the Clang Plugin to help identify
+    sources which should be ignored.
+    """
+    tpp_list = []
+    lines = set()
+
+    for path in input_paths:
+        with open(path) as f:
+            lines.update(f.readlines())
+
+    for line in lines:
+        line = line.strip()
+        if line.endswith("/"):
+            line = line[:-1]
+        tpp_list.append(line)
+    tpp_strings = ",\n  ".join([json.dumps(tpp) for tpp in sorted(tpp_list)])
+
+    output.write(
+        """\
+/* THIS FILE IS GENERATED BY ThirdPartyPaths.py - DO NOT EDIT */
+
+#include <stdint.h>
+
+const char* MOZ_THIRD_PARTY_PATHS[] = {
+  %s
+};
+
+extern const uint32_t MOZ_THIRD_PARTY_PATHS_COUNT = %d;
+
+"""
+        % (tpp_strings, len(tpp_list))
+    )