triagebot: Set up autolabel and review labels

(backport <#4036>)
(cherry picked from commit 07ccaa6)

Author: tgross35

triagebot.toml

@@ -3,15 +3,160 @@ allow-unauthenticated = [
     "C-*", "O-*", "S-*"
 ]
 
-[autolabel."S-waiting-on-review"]
-new_pr = true
-
 [assign]
 contributing_url = "https://github.com/rust-lang/libc/blob/HEAD/CONTRIBUTING.md"
 
 [assign.owners]
 "*" = ["@JohnTitor"]
 
+[autolabel."S-waiting-on-review"]
+new_pr = true
+
+[autolabel."O-android"]
+trigger_files = ["src/unix/linux_like/android"]
+
+[autolabel."O-arm"]
+trigger_files = [
+    "src/solid/arm.rs",
+    "src/unix/bsd/freebsdlike/freebsd/arm.rs",
+    "src/unix/bsd/netbsdlike/netbsd/arm.rs",
+    "src/unix/bsd/netbsdlike/openbsd/arm.rs",
+    "src/unix/linux_like/android/b32/arm.rs",
+    "src/unix/linux_like/linux/gnu/b32/arm/",
+    "src/unix/linux_like/linux/musl/b32/arm/",
+    "src/unix/linux_like/linux/uclibc/arm/",
+    "src/unix/newlib/arm/",
+    "src/vxworks/arm.rs",
+]
+
+[autolabel."O-bsd"]
+trigger_files = ["src/unix/bsd/mod.rs"]
+
+[autolabel."O-dragonfly"]
+trigger_files = ["src/unix/bsd/freebsdlike/dragonfly"]
+
+[autolabel."O-gnu"]
+trigger_files = [
+    "src/unix/linux_like/linux/gnu",
+    "src/windows/gnu",
+]
+
+[autolabel."O-illumos"]
+trigger_files = ["src/unix/solarish/illumos.rs"]
+
+[autolabel."O-linux"]
+trigger_files = ["src/unix/linux_like/linux"]
+
+[autolabel."O-linux-like"]
+trigger_files = ["src/unix/linux_like/mod.rs"]
+
+[autolabel."O-macos"]
+trigger_files = ["src/unix/bsd/apple"]
+
+[autolabel."O-mips"]
+trigger_files = [
+    "src/unix/bsd/netbsdlike/netbsd/mips.rs",
+    "src/unix/bsd/netbsdlike/openbsd/mips64.rs",
+    "src/unix/linux_like/linux/arch/mips",
+    "src/unix/linux_like/linux/gnu/b32/mips",
+    "src/unix/linux_like/linux/gnu/b64/mips64",
+    "src/unix/linux_like/linux/musl/b32/mips",
+    "src/unix/linux_like/linux/musl/b64/mips64.rs",
+    "src/unix/linux_like/linux/uclibc/mips",
+]
+
+[autolabel."O-musl"]
+trigger_files = ["src/unix/linux_like/linux/musl"]
+
+[autolabel."O-newlib"]
+trigger_files = ["src/unix/newlib"]
+
+[autolabel."O-redox"]
+trigger_files = ["src/unix/redox"]
+
+[autolabel."O-riscv"]
+trigger_files = [
+    "src/fuchsia/riscv64.rs",
+    "src/unix/bsd/freebsdlike/freebsd/riscv64.rs",
+    "src/unix/bsd/netbsdlike/netbsd/riscv64.rs",
+    "src/unix/bsd/netbsdlike/openbsd/riscv64.rs",
+    "src/unix/linux_like/android/b64/riscv64",
+    "src/unix/linux_like/linux/gnu/b32/riscv32",
+    "src/unix/linux_like/linux/gnu/b64/riscv64",
+    "src/unix/linux_like/linux/musl/b32/riscv32",
+    "src/unix/linux_like/linux/musl/b64/riscv64",
+    "src/vxworks/riscv32.rs",
+    "src/vxworks/riscv64.rs",
+]
+
+[autolabel."O-solarish"]
+trigger_files = ["src/unix/solarish"]
+
+[autolabel."O-sparc"]
+trigger_files = [
+    "src/unix/bsd/netbsdlike/netbsd/sparc64.rs",
+    "src/unix/bsd/netbsdlike/openbsd/sparc64.rs",
+    "src/unix/linux_like/linux/arch/sparc",
+    "src/unix/linux_like/linux/gnu/b32/sparc",
+    "src/unix/linux_like/linux/gnu/b64/sparc64",
+]
+
+[autolabel."O-unix"]
+trigger_files = ["src/unix"]
+
+[autolabel."O-wasi"]
+trigger_files = ["src/wasi"]
+
+[autolabel."O-wasm"]
+trigger_files = ["src/"]
+
+[autolabel."O-windows"]
+trigger_files = ["src/windows"]
+
+[autolabel."O-x86"]
+trigger_files = [
+    "src/fuchsia/x86_64.rs",
+    "src/unix/bsd/apple/b64/x86_64",
+    "src/unix/bsd/freebsdlike/freebsd/freebsd12/x86_64.rs",
+    "src/unix/bsd/freebsdlike/freebsd/freebsd13/x86_64.rs",
+    "src/unix/bsd/freebsdlike/freebsd/freebsd14/x86_64.rs",
+    "src/unix/bsd/freebsdlike/freebsd/freebsd15/x86_64.rs",
+    "src/unix/bsd/freebsdlike/freebsd/x86.rs",
+    "src/unix/bsd/freebsdlike/freebsd/x86_64",
+    "src/unix/bsd/netbsdlike/netbsd/x86.rs",
+    "src/unix/bsd/netbsdlike/netbsd/x86_64.rs",
+    "src/unix/bsd/netbsdlike/openbsd/x86.rs",
+    "src/unix/bsd/netbsdlike/openbsd/x86_64.rs",
+    "src/unix/haiku/x86_64.rs",
+    "src/unix/linux_like/android/b32/x86",
+    "src/unix/linux_like/android/b64/x86_64",
+    "src/unix/linux_like/linux/gnu/b32/x86",
+    "src/unix/linux_like/linux/gnu/b64/x86_64",
+    "src/unix/linux_like/linux/musl/b32/x86",
+    "src/unix/linux_like/linux/musl/b64/x86_64",
+    "src/unix/linux_like/linux/uclibc/x86_64",
+    "src/unix/nto/x86_64.rs",
+    "src/unix/solarish/x86.rs",
+    "src/unix/solarish/x86_64.rs",
+    "src/unix/solarish/x86_common.rs",
+    "src/vxworks/x86.rs",
+    "src/vxworks/x86_64.rs",
+]
+
+[review-submitted]
+# These labels are removed when a review is submitted.
+review_labels = ["S-waiting-on-review"]
+# This label is added when a review is submitted.
+reviewed_label = "S-waiting-on-author"
+
+[review-requested]
+# Those labels are removed when PR author requests a review from an assignee
+remove_labels = ["S-waiting-on-author"]
+# Those labels are added when PR author requests a review from an assignee
+add_labels = ["S-waiting-on-review"]
+
+[shortcut]
+
 [mentions."src/unix/bsd/netbsdlike/openbsd"]
 message = "Some changes occurred in OpenBSD module"
 cc = ["@semarie"]
@@ -23,5 +168,3 @@ cc = ["@semarie"]
 [mentions."src/unix/solarish"]
 message = "Some changes occurred in solarish module"
 cc = ["@jclulow", "@pfmooney"]
-
-[shortcut]