From e9a6609b7d4aedffa9109bb26ce1bee31d92dbb6 Mon Sep 17 00:00:00 2001
From: Ryan Prichard <rprichard@google.com>
Date: Fri, 20 Oct 2023 02:13:04 -0700
Subject: [PATCH 1/2] If INDUCE_FAILURE_IN_FORMATTER appears in file list,
 cause darker/clang-format failure

---
 llvm/utils/git/code-format-helper.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/llvm/utils/git/code-format-helper.py b/llvm/utils/git/code-format-helper.py
index c45bb4d935d47..db2d4c5c52273 100644
--- a/llvm/utils/git/code-format-helper.py
+++ b/llvm/utils/git/code-format-helper.py
@@ -148,6 +148,11 @@ def format_run(
             args.end_rev,
             "--",
         ] + cpp_files
+
+        # For manual testing purposes...
+        if "INDUCE_FAILURE_IN_FORMATTER" in " ".join(cpp_files):
+            cf_cmd.insert(1, "--induce-failure")
+
         print(f"Running: {' '.join(cf_cmd)}")
         self.cf_cmd = cf_cmd
         proc = subprocess.run(cf_cmd, capture_output=True)
@@ -192,6 +197,11 @@ def format_run(
             "-r",
             f"{args.start_rev}..{args.end_rev}",
         ] + py_files
+
+        # For manual testing purposes...
+        if "INDUCE_FAILURE_IN_FORMATTER" in " ".join(py_files):
+            darker_cmd += ["--induce-failure"]
+
         print(f"Running: {' '.join(darker_cmd)}")
         self.darker_cmd = darker_cmd
         proc = subprocess.run(darker_cmd, capture_output=True)

From 70a79c93d440699ceb87caf5f7c330615b1522b3 Mon Sep 17 00:00:00 2001
From: Ryan Prichard <rprichard@google.com>
Date: Fri, 20 Oct 2023 14:29:49 -0700
Subject: [PATCH 2/2] New C++ and Python file: neither needs reformatting

---
 llvm/utils/git/test1.cpp | 3 +++
 llvm/utils/git/test1.py  | 2 ++
 2 files changed, 5 insertions(+)
 create mode 100644 llvm/utils/git/test1.cpp
 create mode 100644 llvm/utils/git/test1.py

diff --git a/llvm/utils/git/test1.cpp b/llvm/utils/git/test1.cpp
new file mode 100644
index 0000000000000..45269d1d40959
--- /dev/null
+++ b/llvm/utils/git/test1.cpp
@@ -0,0 +1,3 @@
+int main() {
+  return 42;
+}
diff --git a/llvm/utils/git/test1.py b/llvm/utils/git/test1.py
new file mode 100644
index 0000000000000..2b0aadd82aa62
--- /dev/null
+++ b/llvm/utils/git/test1.py
@@ -0,0 +1,2 @@
+def main():
+    return 42