1 //! Runs rustfmt on the repository.
5 use ignore::WalkBuilder;
7 use std::process::Command;
9 fn rustfmt(src: &Path, rustfmt: &Path, path: &Path, check: bool) {
10 let mut cmd = Command::new(&rustfmt);
11 // avoid the submodule config paths from coming into play,
12 // we only allow a single global config for the workspace for now
13 cmd.arg("--config-path").arg(&src.canonicalize().unwrap());
14 cmd.arg("--edition").arg("2018");
15 cmd.arg("--unstable-features");
16 cmd.arg("--skip-children");
21 let cmd_debug = format!("{:?}", cmd);
22 let status = cmd.status().expect("executing rustfmt");
23 assert!(status.success(), "running {} successful", cmd_debug);
26 #[derive(serde::Deserialize)]
27 struct RustfmtConfig {
31 pub fn format(build: &Build, check: bool) {
32 let mut builder = ignore::types::TypesBuilder::new();
33 builder.add_defaults();
34 builder.select("rust");
35 let matcher = builder.build().unwrap();
36 let rustfmt_config = build.src.join("rustfmt.toml");
37 if !rustfmt_config.exists() {
38 eprintln!("Not running formatting checks; rustfmt.toml does not exist.");
39 eprintln!("This may happen in distributed tarballs.");
42 let rustfmt_config = t!(std::fs::read_to_string(&rustfmt_config));
43 let rustfmt_config: RustfmtConfig = t!(toml::from_str(&rustfmt_config));
44 let mut ignore_fmt = ignore::overrides::OverrideBuilder::new(&build.src);
45 for ignore in rustfmt_config.ignore {
46 ignore_fmt.add(&format!("!{}", ignore)).expect(&ignore);
48 let ignore_fmt = ignore_fmt.build().unwrap();
50 let rustfmt_path = build.config.initial_rustfmt.as_ref().unwrap_or_else(|| {
51 eprintln!("./x.py fmt is not supported on this channel");
52 std::process::exit(1);
54 let src = build.src.clone();
55 let walker = WalkBuilder::new(&build.src).types(matcher).overrides(ignore_fmt).build_parallel();
57 let src = src.clone();
58 let rustfmt_path = rustfmt_path.clone();
59 Box::new(move |entry| {
60 let entry = t!(entry);
61 if entry.file_type().map_or(false, |t| t.is_file()) {
62 rustfmt(&src, &rustfmt_path, &entry.path(), check);
64 ignore::WalkState::Continue