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ff4b3d4780
refactor merge base logic and fix `x fmt` When remote upstream is not configured, using [get_git_modified_files](38e3a5771c/src/tools/build_helper/src/git.rs (L114)) to find modified files fails because [get_rust_lang_rust_remote](38e3a5771c/src/tools/build_helper/src/git.rs (L46-L48)) can not resolve "rust-lang/rust" from the git output. The changes in this PR makes bootstrap to find the latest bors commit, treating it as the "closest upstream commit" so that the change tracker logic can use it to find the diffs. In addition, [skips formatting](e392454483) if there are no modified files. Fixes #130147
This directory contains some source code for the Rust project, including:
- The bootstrapping build system
- Various submodules for tools, like cargo, tidy, etc.
For more information on how various parts of the compiler work, see the rustc dev guide.