1 //! See https://github.com/matklad/cargo-xtask/.
3 //! This binary defines various auxiliary build commands, which are not
4 //! expressible with just `cargo`. Notably, it provides `cargo xtask codegen`
5 //! for code generation and `cargo xtask install` for installation of
6 //! rust-analyzer server and client.
8 //! This binary is integrated into the `cargo` command line by using an alias in
23 use anyhow::{bail, Result};
26 path::{Path, PathBuf},
28 use walkdir::{DirEntry, WalkDir};
29 use xshell::{cmd, cp, pushd, pushenv};
31 use crate::{codegen::Mode, dist::DistCmd};
33 fn main() -> Result<()> {
34 let _d = pushd(project_root())?;
36 let flags = flags::Xtask::from_env()?;
37 match flags.subcommand {
38 flags::XtaskCmd::Help(_) => {
39 println!("{}", flags::Xtask::HELP);
42 flags::XtaskCmd::Install(cmd) => cmd.run(),
43 flags::XtaskCmd::Codegen(cmd) => cmd.run(),
44 flags::XtaskCmd::Lint(_) => run_clippy(),
45 flags::XtaskCmd::FuzzTests(_) => run_fuzzer(),
46 flags::XtaskCmd::PreCache(cmd) => cmd.run(),
47 flags::XtaskCmd::Release(cmd) => cmd.run(),
48 flags::XtaskCmd::Promote(cmd) => cmd.run(),
49 flags::XtaskCmd::Dist(flags) => {
50 DistCmd { nightly: flags.nightly, client_version: flags.client }.run()
52 flags::XtaskCmd::Metrics(cmd) => cmd.run(),
53 flags::XtaskCmd::Bb(cmd) => {
55 let _d = pushd("./crates/rust-analyzer")?;
56 cmd!("cargo build --release --features jemalloc").run()?;
58 cp("./target/release/rust-analyzer", format!("./target/rust-analyzer-{}", cmd.suffix))?;
64 fn project_root() -> PathBuf {
66 &env::var("CARGO_MANIFEST_DIR").unwrap_or_else(|_| env!("CARGO_MANIFEST_DIR").to_owned()),
74 fn rust_files() -> impl Iterator<Item = PathBuf> {
75 rust_files_in(&project_root().join("crates"))
79 fn cargo_files() -> impl Iterator<Item = PathBuf> {
80 files_in(&project_root(), "toml")
81 .filter(|path| path.file_name().map(|it| it == "Cargo.toml").unwrap_or(false))
84 fn rust_files_in(path: &Path) -> impl Iterator<Item = PathBuf> {
88 fn run_rustfmt(mode: Mode) -> Result<()> {
89 let _dir = pushd(project_root())?;
90 let _e = pushenv("RUSTUP_TOOLCHAIN", "stable");
93 Mode::Overwrite => cmd!("cargo fmt").run()?,
95 let res = cmd!("cargo fmt -- --check").run();
97 let _ = cmd!("cargo fmt").run();
105 fn ensure_rustfmt() -> Result<()> {
106 let out = cmd!("rustfmt --version").read()?;
107 if !out.contains("stable") {
109 "Failed to run rustfmt from toolchain 'stable'. \
110 Please run `rustup component add rustfmt --toolchain stable` to install it.",
116 fn run_clippy() -> Result<()> {
117 if cmd!("cargo clippy --version").read().is_err() {
119 "Failed run cargo clippy. \
120 Please run `rustup component add clippy` to install it.",
124 let allowed_lints = "
125 -A clippy::collapsible_if
126 -A clippy::needless_pass_by_value
127 -A clippy::nonminimal_bool
128 -A clippy::redundant_pattern_matching
130 .split_ascii_whitespace();
131 cmd!("cargo clippy --all-features --all-targets -- {allowed_lints...}").run()?;
135 fn run_fuzzer() -> Result<()> {
136 let _d = pushd("./crates/syntax")?;
137 let _e = pushenv("RUSTUP_TOOLCHAIN", "nightly");
138 if cmd!("cargo fuzz --help").read().is_err() {
139 cmd!("cargo install cargo-fuzz").run()?;
142 // Expecting nightly rustc
143 let out = cmd!("rustc --version").read()?;
144 if !out.contains("nightly") {
145 bail!("fuzz tests require nightly rustc")
148 cmd!("cargo fuzz run parser").run()?;
152 fn date_iso() -> Result<String> {
153 let res = cmd!("date --iso --utc").read()?;
157 fn is_release_tag(tag: &str) -> bool {
158 tag.len() == "2020-02-24".len() && tag.starts_with(|c: char| c.is_ascii_digit())
161 fn files_in(path: &Path, ext: &'static str) -> impl Iterator<Item = PathBuf> {
162 let iter = WalkDir::new(path);
165 .filter_entry(|e| !is_hidden(e))
167 .filter(|e| !e.file_type().is_dir())
168 .map(|e| e.into_path())
169 .filter(move |path| path.extension().map(|it| it == ext).unwrap_or(false));
171 fn is_hidden(entry: &DirEntry) -> bool {
172 entry.file_name().to_str().map(|s| s.starts_with('.')).unwrap_or(false)