X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=rustfmt.toml;h=828d492a3d19c892b53168bbe8f280641f6b28bd;hb=8e2f57094fff3dd684ef3d1ff743e50befb374c0;hp=ebeca8662a5195c6408e8707a06248c189ffab99;hpb=e0ba71e39ad68e58a32e88367271e8d5eda38550;p=rust.git

diff --git a/rustfmt.toml b/rustfmt.toml
index ebeca8662a5..828d492a3d1 100644
--- a/rustfmt.toml
+++ b/rustfmt.toml
@@ -1,6 +1,43 @@
-ignore = ["y.rs"]
-
-# Matches rustfmt.toml of rustc
+# Run rustfmt with this config (it should be picked up automatically).
 version = "Two"
 use_small_heuristics = "Max"
 merge_derives = false
+
+# by default we ignore everything in the repository
+# tidy only checks files which are not ignored, each entry follows gitignore style
+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
+    "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/rls",
+    "src/tools/rust-analyzer",
+    "src/tools/rustfmt",
+    "src/tools/rust-installer",
+
+    # these are ignored by a standard cargo fmt run
+    "compiler/rustc_codegen_cranelift/y.rs", # running rustfmt breaks this file
+    "compiler/rustc_codegen_cranelift/example",
+    "compiler/rustc_codegen_cranelift/scripts",
+]