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1 | 1 | //! Checks the licenses of third-party dependencies. |
2 | 2 |
|
3 | 3 | use std::collections::HashSet; |
4 | | -use std::fs::read_dir; |
| 4 | +use std::fs::{File, read_dir}; |
| 5 | +use std::io::Write; |
5 | 6 | use std::path::Path; |
6 | 7 |
|
7 | 8 | use build_helper::ci::CiEnv; |
8 | 9 | use cargo_metadata::{Metadata, Package, PackageId}; |
9 | 10 |
|
| 11 | +#[path = "../../../bootstrap/src/utils/proc_macro_deps.rs"] |
| 12 | +mod proc_macro_deps; |
| 13 | + |
10 | 14 | /// These are licenses that are allowed for all crates, including the runtime, |
11 | 15 | /// rustc, tools, etc. |
12 | 16 | #[rustfmt::skip] |
@@ -564,9 +568,11 @@ const PERMITTED_CRANELIFT_DEPENDENCIES: &[&str] = &[ |
564 | 568 | /// |
565 | 569 | /// `root` is path to the directory with the root `Cargo.toml` (for the workspace). `cargo` is path |
566 | 570 | /// to the cargo executable. |
567 | | -pub fn check(root: &Path, cargo: &Path, bad: &mut bool) { |
| 571 | +pub fn check(root: &Path, cargo: &Path, bless: bool, bad: &mut bool) { |
568 | 572 | let mut checked_runtime_licenses = false; |
569 | 573 |
|
| 574 | + check_proc_macro_dep_list(root, cargo, bless, bad); |
| 575 | + |
570 | 576 | for &(workspace, exceptions, permitted_deps, submodules) in WORKSPACES { |
571 | 577 | if has_missing_submodule(root, submodules) { |
572 | 578 | continue; |
@@ -600,6 +606,69 @@ pub fn check(root: &Path, cargo: &Path, bad: &mut bool) { |
600 | 606 | assert!(checked_runtime_licenses); |
601 | 607 | } |
602 | 608 |
|
| 609 | +/// Ensure the list of proc-macro crate transitive dependencies is up to date |
| 610 | +fn check_proc_macro_dep_list(root: &Path, cargo: &Path, bless: bool, bad: &mut bool) { |
| 611 | + let mut cmd = cargo_metadata::MetadataCommand::new(); |
| 612 | + cmd.cargo_path(cargo) |
| 613 | + .manifest_path(root.join("Cargo.toml")) |
| 614 | + .features(cargo_metadata::CargoOpt::AllFeatures) |
| 615 | + .other_options(vec!["--locked".to_owned()]); |
| 616 | + let metadata = t!(cmd.exec()); |
| 617 | + let is_proc_macro_pkg = |
| 618 | + |pkg: &&Package| pkg.dependencies.iter().any(|dep| dep.name.as_str() == "proc-macro2"); |
| 619 | + let mut proc_macro_deps = HashSet::new(); |
| 620 | + for pkg in metadata.packages.iter().filter(is_proc_macro_pkg) { |
| 621 | + deps_of(&metadata, &pkg.id, &mut proc_macro_deps); |
| 622 | + } |
| 623 | + let proc_macro_deps_iter = proc_macro_deps.into_iter().map(|dep| metadata[dep].name.clone()); |
| 624 | + |
| 625 | + if bless { |
| 626 | + let mut proc_macro_deps: Vec<_> = proc_macro_deps_iter.collect(); |
| 627 | + proc_macro_deps.sort(); |
| 628 | + proc_macro_deps.dedup(); |
| 629 | + let mut file = File::create(root.join("src/bootstrap/src/utils/proc_macro_deps.rs")) |
| 630 | + .expect("`proc_macro_deps` should exist"); |
| 631 | + writeln!( |
| 632 | + &mut file, |
| 633 | + "/// Do not update manually - use `./x.py test tidy --bless` |
| 634 | +/// Holds all direct and indirect dependencies of proc-macro crates in tree. |
| 635 | +/// See https://github.com/rust-lang/rust/issues/134863 |
| 636 | +pub static CRATES: &[&str] = &[ |
| 637 | + // tidy-alphabetical-start" |
| 638 | + ) |
| 639 | + .unwrap(); |
| 640 | + for dep in proc_macro_deps { |
| 641 | + writeln!(&mut file, " {dep:?},").unwrap(); |
| 642 | + } |
| 643 | + writeln!( |
| 644 | + &mut file, |
| 645 | + " // tidy-alphabetical-end |
| 646 | +];" |
| 647 | + ) |
| 648 | + .unwrap(); |
| 649 | + } else { |
| 650 | + let proc_macro_deps: HashSet<_> = proc_macro_deps_iter.collect(); |
| 651 | + let expected = |
| 652 | + proc_macro_deps::CRATES.iter().map(|s| s.to_string()).collect::<HashSet<_>>(); |
| 653 | + let old_bad = *bad; |
| 654 | + for missing in proc_macro_deps.difference(&expected) { |
| 655 | + tidy_error!( |
| 656 | + bad, |
| 657 | + "proc-macro crate dependency `{missing}` is not registered in `src/bootstrap/src/utils/proc_macro_deps.rs`", |
| 658 | + ); |
| 659 | + } |
| 660 | + for extra in expected.difference(&proc_macro_deps) { |
| 661 | + tidy_error!( |
| 662 | + bad, |
| 663 | + "`{extra}` is not registered in `src/bootstrap/src/utils/proc_macro_deps.rs`, but is not a proc-macro crate dependency", |
| 664 | + ); |
| 665 | + } |
| 666 | + if *bad != old_bad { |
| 667 | + eprintln!("Run `./x.py test tidy --bless` to regenerate the list"); |
| 668 | + } |
| 669 | + } |
| 670 | +} |
| 671 | + |
603 | 672 | /// Used to skip a check if a submodule is not checked out, and not in a CI environment. |
604 | 673 | /// |
605 | 674 | /// This helps prevent enforcing developers to fetch submodules for tidy. |
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