Lint only Changed Files

[rjwignar]

Does this workflow lint only modified files in a given source folder, or attempt to lint every file in the given source folder (with any exclusions applied in both cases)?
I'm reading the codebase and noticed methods in clang-format.py that might suggest this, like run_clang_format_diff(), but I'm ultimately unsure.

[rjwignar]

After reading through the documentation and codebase it looks like the action checks every file in a given source folder (after applying given exclusions. please correct me if I'm wrong).

However, last week I searched past issues and #44 describes a method of passing a list of modified files to clang-format-lint-action: