BrontoSource

What BrontoSource is

BrontoSource provides C++ refactoring tools for engineering teams maintaining large codebases. Users define explicit transformation rules and apply them across repositories and thousands of files. Documented operations include inlining and extraction, as well as pattern matching for expressions, declarations, types, lambda captures and preprocessor macros. The command-line tool accepts Clang arguments, a compilation database or a compile_flags.txt file, and can generate edits in Fossil format, merge edit files and apply changes. BrontoSource describes the resulting diffs as deterministic, repeatable and traceable, making them reviewable after a transformation. The homepage reports more than 100 million lines transformed and over 10,000 files refactored in one transformation. The refactoring tool is in early access; interested teams are asked to contact BrontoSource to try it on their codebase. The API can also be tried through Compiler Explorer without installing the tool. Its header-only support library has built-in CMake 3.10.0+ and Bazel 8.1.1+ support, uses the 0BSD license and compiles to nothing at runtime, according to the documentation. Pricing is on request.