Add ./rust_fmt.sh

proto/gen_protos_tool.rs

@@ -1,34 +1,35 @@
-use tonic_build;
-use clap::{Arg, App};
+use clap::{App, Arg};
 use std::path::PathBuf;
 use std::vec::Vec;
+use tonic_build;
 
 fn main() -> std::io::Result<()> {
     let matches = App::new("Rust gRPC Codegen")
         .about("Codegen grpc/protobuf bindings for rust")
-        .arg(Arg::with_name("input")
-                 .short("i")
-                 .long("input")
-                 .required(true)
-                 .multiple(true)
-                 .takes_value(true)
-                 .help("Input proto file"))
-        .arg(Arg::with_name("output_dir")
-                 .short("o")
-                 .required(true)
-                 .long("output_dir")
-                 .takes_value(true)
-                 .help("Output directory"))
+        .arg(
+            Arg::with_name("input")
+                .short("i")
+                .long("input")
+                .required(true)
+                .multiple(true)
+                .takes_value(true)
+                .help("Input proto file"),
+        )
+        .arg(
+            Arg::with_name("output_dir")
+                .short("o")
+                .required(true)
+                .long("output_dir")
+                .takes_value(true)
+                .help("Output directory"),
+        )
         .get_matches();
     let paths = matches.values_of("input").unwrap().collect::<Vec<&str>>();
     let output_dir = PathBuf::from(matches.value_of("output_dir").unwrap());
 
     tonic_build::configure()
         .out_dir(&output_dir)
         .format(true) // don't run `rustfmt`; shouldn't be needed to build
-        .compile(
-            &paths,
-            &["proto"],
-        )?;
+        .compile(&paths, &["proto"])?;
     Ok(())
-}
+}

proto/genproto/google.protobuf.pb.rs

@@ -1,2 +1 @@
 // Copyright 2020 Nathan (Blaise) Bruer.  All rights reserved.
-

rust_fmt.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+# Copyright 2020 Nathan (Blaise) Bruer.  All rights reserved.
+
+set -eu -o pipefail
+
+cd "$(dirname $(realpath $0))"
+
+RUST_FMT="./bazel-bin/external/raze__rustfmt_nightly__1_4_21/cargo_bin_rustfmt"
+if [ "${1:-}" != "" ]; then
+  FILES="$@"
+else
+  FILES="$(find . -name '*.rs')"
+fi
+echo "$FILES" | xargs $RUST_FMT --emit files --edition 2018