Find clang-format with alternative names

This is similar to what we currently do for scan-build except there is
no environment variable to choose a specific clang-format to run. If an
environment variable is needed for better control, we can add it later.

1 files changed, 17 insertions, 1 deletions

diff --git a/mesonbuild/environment.py b/mesonbuild/environment.py
index 7c10825..0fec347 100644
--- a/mesonbuild/environment.py
+++ b/mesonbuild/environment.py
@@ -189,7 +189,7 @@ def get_llvm_tool_names(tool: str) -> typing.List[str]:
         names.append(tool + suffix)
     return names
 
-def detect_scanbuild():
+def detect_scanbuild() -> typing.List[str]:
     """ Look for scan-build binary on build platform
 
     First, if a SCANBUILD env variable has been provided, give it precedence
@@ -220,6 +220,22 @@ def detect_scanbuild():
             return [tool]
     return []
 
+def detect_clangformat() -> typing.List[str]:
+    """ Look for clang-format binary on build platform
+
+    Do the same thing as detect_scanbuild to find clang-format except it
+    currently does not check the environment variable.
+
+    Return: a single-element list of the found clang-format binary ready to be
+        passed to Popen()
+    """
+    tools = get_llvm_tool_names('clang-format')
+    for tool in tools:
+        path = shutil.which(tool)
+        if path is not None:
+            return [path]
+    return []
+
 def detect_native_windows_arch():
     """
     The architecture of Windows itself: x86, amd64 or arm64