rust/rustfmt.toml
Nicholas Nethercote f1b0ca08a4 Don't format tests/run-make/*/rmake.rs.
It's reasonable to want to, but in the current implementation this
causes multiple problems.

- All the `rmake.rs` files are formatted every time even when they
  haven't changed. This is because they get whitelisted unconditionally
  in the `OverrideBuilder`, before the changed files get added.

- The way `OverrideBuilder` works, if any files gets whitelisted then no
  unmentioned files will get traversed. This is surprising, and means
  that the `rmake.rs` entries broke the use of explicit paths to `x
  fmt`, and also broke `GITHUB_ACTIONS=true git check --fmt`.

The commit removes the `rmake.rs` entries, fixes the formatting of a
couple of files that were misformatted (not previously caught due to the
`GITHUB_ACTIONS` breakage), and bans `!`-prefixed entries in
`rustfmt.toml` because they cause all these problems.
2024-05-28 19:28:46 +10:00

43 lines
1.3 KiB
TOML

# Run rustfmt with this config (it should be picked up automatically).
version = "Two"
use_small_heuristics = "Max"
merge_derives = false
# Files to ignore. Each entry uses gitignore syntax, but `!` prefixes aren't allowed.
ignore = [
"/build/",
"/*-build/",
"/build-*/",
"/vendor/",
# Tests for now are not formatted, as they are sometimes pretty-printing constrained
# (and generally rustfmt can move around comments in UI-testing incompatible ways).
"/tests/",
# Do not format submodules.
# FIXME: sync submodule list with tidy/bootstrap/etc
# tidy/src/walk.rs:filter_dirs
"library/backtrace",
"library/portable-simd",
"library/stdarch",
"compiler/rustc_codegen_gcc",
"src/doc/book",
"src/doc/edition-guide",
"src/doc/embedded-book",
"src/doc/nomicon",
"src/doc/reference",
"src/doc/rust-by-example",
"src/doc/rustc-dev-guide",
"src/llvm-project",
"src/tools/cargo",
"src/tools/clippy",
"src/tools/miri",
"src/tools/rust-analyzer",
"src/tools/rustc-perf",
"src/tools/rustfmt",
# These are ignored by a standard cargo fmt run.
"compiler/rustc_codegen_cranelift/scripts",
"compiler/rustc_codegen_cranelift/example/gen_block_iterate.rs", # uses edition 2024
]