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-rw-r--r--src/bootstrap/builder.rs19
-rw-r--r--src/bootstrap/builder/tests.rs14
-rw-r--r--src/bootstrap/dist.rs6
-rw-r--r--src/bootstrap/doc.rs173
-rw-r--r--src/bootstrap/test.rs12
5 files changed, 100 insertions, 124 deletions
diff --git a/src/bootstrap/builder.rs b/src/bootstrap/builder.rs
index b2e9ba144d6..b16e34c0b93 100644
--- a/src/bootstrap/builder.rs
+++ b/src/bootstrap/builder.rs
@@ -433,25 +433,6 @@ impl<'a> ShouldRun<'a> {
     /// Indicates it should run if the command-line selects the given crate or
     /// any of its (local) dependencies.
     ///
-    /// Compared to `krate`, this treats the dependencies as aliases for the
-    /// same job. Generally it is preferred to use `krate`, and treat each
-    /// individual path separately. For example `./x.py test src/liballoc`
-    /// (which uses `krate`) will test just `liballoc`. However, `./x.py check
-    /// src/liballoc` (which uses `all_krates`) will check all of `libtest`.
-    /// `all_krates` should probably be removed at some point.
-    pub fn all_krates(mut self, name: &str) -> Self {
-        let mut set = BTreeSet::new();
-        for krate in self.builder.in_tree_crates(name, None) {
-            let path = krate.local_path(self.builder);
-            set.insert(TaskPath { path, kind: Some(self.kind) });
-        }
-        self.paths.insert(PathSet::Set(set));
-        self
-    }
-
-    /// Indicates it should run if the command-line selects the given crate or
-    /// any of its (local) dependencies.
-    ///
     /// `make_run` will be called a single time with all matching command-line paths.
     pub fn crate_or_deps(self, name: &str) -> Self {
         let crates = self.builder.in_tree_crates(name, None);
diff --git a/src/bootstrap/builder/tests.rs b/src/bootstrap/builder/tests.rs
index edca8fe9b13..d76b830b0e5 100644
--- a/src/bootstrap/builder/tests.rs
+++ b/src/bootstrap/builder/tests.rs
@@ -1,5 +1,6 @@
 use super::*;
 use crate::config::{Config, DryRun, TargetSelection};
+use crate::doc::DocumentationFormat;
 use std::thread;
 
 fn configure(cmd: &str, host: &[&str], target: &[&str]) -> Config {
@@ -66,6 +67,16 @@ macro_rules! std {
     };
 }
 
+macro_rules! doc_std {
+    ($host:ident => $target:ident, stage = $stage:literal) => {
+        doc::Std::new(
+            $stage,
+            TargetSelection::from_user(stringify!($target)),
+            DocumentationFormat::HTML,
+        )
+    };
+}
+
 macro_rules! rustc {
     ($host:ident => $target:ident, stage = $stage:literal) => {
         compile::Rustc::new(
@@ -144,6 +155,9 @@ fn alias_and_path_for_library() {
         first(cache.all::<compile::Std>()),
         &[std!(A => A, stage = 0), std!(A => A, stage = 1)]
     );
+
+    let mut cache = run_build(&["library".into(), "core".into()], configure("doc", &["A"], &["A"]));
+    assert_eq!(first(cache.all::<doc::Std>()), &[doc_std!(A => A, stage = 0)]);
 }
 
 #[test]
diff --git a/src/bootstrap/dist.rs b/src/bootstrap/dist.rs
index b49845386da..46fc5b80e99 100644
--- a/src/bootstrap/dist.rs
+++ b/src/bootstrap/dist.rs
@@ -106,11 +106,7 @@ impl Step for JsonDocs {
     /// Builds the `rust-docs-json` installer component.
     fn run(self, builder: &Builder<'_>) -> Option<GeneratedTarball> {
         let host = self.host;
-        builder.ensure(crate::doc::Std {
-            stage: builder.top_stage,
-            target: host,
-            format: DocumentationFormat::JSON,
-        });
+        builder.ensure(crate::doc::Std::new(builder.top_stage, host, DocumentationFormat::JSON));
 
         let dest = "share/doc/rust/json";
 
diff --git a/src/bootstrap/doc.rs b/src/bootstrap/doc.rs
index b52c3b68cc4..357cd778b6c 100644
--- a/src/bootstrap/doc.rs
+++ b/src/bootstrap/doc.rs
@@ -16,6 +16,7 @@ use crate::builder::crate_description;
 use crate::builder::{Builder, Compiler, Kind, RunConfig, ShouldRun, Step};
 use crate::cache::{Interned, INTERNER};
 use crate::compile;
+use crate::compile::make_run_crates;
 use crate::config::{Config, TargetSelection};
 use crate::tool::{self, prepare_tool_cargo, SourceType, Tool};
 use crate::util::{symlink_dir, t, up_to_date};
@@ -87,15 +88,6 @@ book!(
     StyleGuide, "src/doc/style-guide", "style-guide";
 );
 
-// "library/std" -> ["library", "std"]
-//
-// Used for deciding whether a particular step is one requested by the user on
-// the `x.py doc` command line, which determines whether `--open` will open that
-// page.
-pub(crate) fn components_simplified(path: &PathBuf) -> Vec<&str> {
-    path.iter().map(|component| component.to_str().unwrap_or("???")).collect()
-}
-
 #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
 pub struct UnstableBook {
     target: TargetSelection,
@@ -425,11 +417,18 @@ impl Step for SharedAssets {
     }
 }
 
-#[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
+#[derive(Debug, Copy, Clone, Hash, PartialEq, Eq, PartialOrd, Ord)]
 pub struct Std {
     pub stage: u32,
     pub target: TargetSelection,
     pub format: DocumentationFormat,
+    crates: Interned<Vec<String>>,
+}
+
+impl Std {
+    pub(crate) fn new(stage: u32, target: TargetSelection, format: DocumentationFormat) -> Self {
+        Std { stage, target, format, crates: INTERNER.intern_list(vec![]) }
+    }
 }
 
 impl Step for Std {
@@ -438,7 +437,7 @@ impl Step for Std {
 
     fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
         let builder = run.builder;
-        run.all_krates("sysroot").path("library").default_condition(builder.config.docs)
+        run.crate_or_deps("sysroot").path("library").default_condition(builder.config.docs)
     }
 
     fn make_run(run: RunConfig<'_>) {
@@ -450,6 +449,7 @@ impl Step for Std {
             } else {
                 DocumentationFormat::HTML
             },
+            crates: make_run_crates(&run, "library"),
         });
     }
 
@@ -457,7 +457,7 @@ impl Step for Std {
     ///
     /// This will generate all documentation for the standard library and its
     /// dependencies. This is largely just a wrapper around `cargo doc`.
-    fn run(self, builder: &Builder<'_>) {
+    fn run(mut self, builder: &Builder<'_>) {
         let stage = self.stage;
         let target = self.target;
         let out = match self.format {
@@ -487,25 +487,7 @@ impl Step for Std {
             extra_args.push(OsStr::new("--disable-minification"));
         }
 
-        let requested_crates = builder
-            .paths
-            .iter()
-            .map(components_simplified)
-            .filter_map(|path| {
-                if path.len() >= 2 && path.get(0) == Some(&"library") {
-                    // single crate
-                    Some(path[1].to_owned())
-                } else if !path.is_empty() {
-                    // ??
-                    Some(path[0].to_owned())
-                } else {
-                    // all library crates
-                    None
-                }
-            })
-            .collect::<Vec<_>>();
-
-        doc_std(builder, self.format, stage, target, &out, &extra_args, &requested_crates);
+        doc_std(builder, self.format, stage, target, &out, &extra_args, &self.crates);
 
         // Don't open if the format is json
         if let DocumentationFormat::JSON = self.format {
@@ -514,7 +496,11 @@ impl Step for Std {
 
         // Look for library/std, library/core etc in the `x.py doc` arguments and
         // open the corresponding rendered docs.
-        for requested_crate in requested_crates {
+        if self.crates.is_empty() {
+            self.crates = INTERNER.intern_list(vec!["library".to_owned()]);
+        };
+
+        for requested_crate in &*self.crates {
             if requested_crate == "library" {
                 // For `x.py doc library --open`, open `std` by default.
                 let index = out.join("std").join("index.html");
@@ -538,7 +524,7 @@ impl Step for Std {
 /// or remote link.
 const STD_PUBLIC_CRATES: [&str; 5] = ["core", "alloc", "std", "proc_macro", "test"];
 
-#[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
+#[derive(Debug, Copy, Clone, Hash, PartialEq, Eq, PartialOrd, Ord)]
 pub enum DocumentationFormat {
     HTML,
     JSON,
@@ -566,21 +552,19 @@ fn doc_std(
     extra_args: &[&OsStr],
     requested_crates: &[String],
 ) {
-    builder.info(&format!(
-        "Documenting{} stage{} library ({}) in {} format",
-        crate_description(requested_crates),
-        stage,
-        target,
-        format.as_str()
-    ));
     if builder.no_std(target) == Some(true) {
         panic!(
             "building std documentation for no_std target {target} is not supported\n\
-             Set `docs = false` in the config to disable documentation."
+             Set `docs = false` in the config to disable documentation, or pass `--exclude doc::library`."
         );
     }
+
     let compiler = builder.compiler(stage, builder.config.build);
 
+    let description =
+        format!("library{} in {} format", crate_description(&requested_crates), format.as_str());
+    let _guard = builder.msg(Kind::Doc, stage, &description, compiler.host, target);
+
     let target_doc_dir_name = if format == DocumentationFormat::JSON { "json-doc" } else { "doc" };
     let target_dir =
         builder.stage_out(compiler, Mode::Std).join(target.triple).join(target_doc_dir_name);
@@ -590,35 +574,27 @@ fn doc_std(
     // as a function parameter.
     let out_dir = target_dir.join(target.triple).join("doc");
 
-    let run_cargo_rustdoc_for = |package: &str| {
-        let mut cargo = builder.cargo(compiler, Mode::Std, SourceType::InTree, target, "rustdoc");
-        compile::std_cargo(builder, target, compiler.stage, &mut cargo);
-        cargo
-            .arg("--target-dir")
-            .arg(&*target_dir.to_string_lossy())
-            .arg("-p")
-            .arg(package)
-            .arg("-Zskip-rustdoc-fingerprint")
-            .arg("--")
-            .arg("-Z")
-            .arg("unstable-options")
-            .arg("--resource-suffix")
-            .arg(&builder.version)
-            .args(extra_args);
-        if builder.config.library_docs_private_items {
-            cargo.arg("--document-private-items").arg("--document-hidden-items");
-        }
-        builder.run(&mut cargo.into());
-    };
+    let mut cargo = builder.cargo(compiler, Mode::Std, SourceType::InTree, target, "rustdoc");
+    compile::std_cargo(builder, target, compiler.stage, &mut cargo);
+    cargo.arg("--target-dir").arg(&*target_dir.to_string_lossy()).arg("-Zskip-rustdoc-fingerprint");
 
-    for krate in STD_PUBLIC_CRATES {
-        run_cargo_rustdoc_for(krate);
-        if requested_crates.iter().any(|p| p == krate) {
-            // No need to document more of the libraries if we have the one we want.
-            break;
-        }
+    for krate in requested_crates {
+        cargo.arg("-p").arg(krate);
     }
 
+    cargo
+        .arg("--")
+        .arg("-Z")
+        .arg("unstable-options")
+        .arg("--resource-suffix")
+        .arg(&builder.version)
+        .args(extra_args);
+
+    if builder.config.library_docs_private_items {
+        cargo.arg("--document-private-items").arg("--document-hidden-items");
+    }
+
+    builder.run(&mut cargo.into());
     builder.cp_r(&out_dir, &out);
 }
 
@@ -626,6 +602,28 @@ fn doc_std(
 pub struct Rustc {
     pub stage: u32,
     pub target: TargetSelection,
+    crates: Interned<Vec<String>>,
+}
+
+impl Rustc {
+    pub(crate) fn new(stage: u32, target: TargetSelection, builder: &Builder<'_>) -> Self {
+        // Find dependencies for top level crates.
+        let root_crates = vec![
+            INTERNER.intern_str("rustc_driver"),
+            INTERNER.intern_str("rustc_codegen_llvm"),
+            INTERNER.intern_str("rustc_codegen_ssa"),
+        ];
+        let crates: Vec<_> = root_crates
+            .iter()
+            .flat_map(|krate| {
+                builder
+                    .in_tree_crates(krate, Some(target))
+                    .into_iter()
+                    .map(|krate| krate.name.to_string())
+            })
+            .collect();
+        Self { stage, target, crates: INTERNER.intern_list(crates) }
+    }
 }
 
 impl Step for Rustc {
@@ -641,7 +639,11 @@ impl Step for Rustc {
     }
 
     fn make_run(run: RunConfig<'_>) {
-        run.builder.ensure(Rustc { stage: run.builder.top_stage, target: run.target });
+        run.builder.ensure(Rustc {
+            stage: run.builder.top_stage,
+            target: run.target,
+            crates: make_run_crates(&run, "compiler"),
+        });
     }
 
     /// Generates compiler documentation.
@@ -654,15 +656,6 @@ impl Step for Rustc {
         let stage = self.stage;
         let target = self.target;
 
-        let paths = builder
-            .paths
-            .iter()
-            .filter(|path| {
-                let components = components_simplified(path);
-                components.len() >= 2 && components[0] == "compiler"
-            })
-            .collect::<Vec<_>>();
-
         // This is the intended out directory for compiler documentation.
         let out = builder.compiler_doc_out(target);
         t!(fs::create_dir_all(&out));
@@ -672,7 +665,13 @@ impl Step for Rustc {
         let compiler = builder.compiler(stage, builder.config.build);
         builder.ensure(compile::Std::new(compiler, builder.config.build));
 
-        builder.info(&format!("Documenting stage{} compiler ({})", stage, target));
+        let _guard = builder.msg(
+            Kind::Doc,
+            stage,
+            &format!("compiler{}", crate_description(&self.crates)),
+            compiler.host,
+            target,
+        );
 
         // This uses a shared directory so that librustdoc documentation gets
         // correctly built and merged with the rustc documentation. This is
@@ -710,22 +709,8 @@ impl Step for Rustc {
         cargo.rustdocflag("--extern-html-root-url");
         cargo.rustdocflag("ena=https://docs.rs/ena/latest/");
 
-        let root_crates = if paths.is_empty() {
-            vec![
-                INTERNER.intern_str("rustc_driver"),
-                INTERNER.intern_str("rustc_codegen_llvm"),
-                INTERNER.intern_str("rustc_codegen_ssa"),
-            ]
-        } else {
-            paths.into_iter().map(|p| builder.crate_paths[p]).collect()
-        };
-        // Find dependencies for top level crates.
-        let compiler_crates = root_crates.iter().flat_map(|krate| {
-            builder.in_tree_crates(krate, Some(target)).into_iter().map(|krate| krate.name)
-        });
-
         let mut to_open = None;
-        for krate in compiler_crates {
+        for krate in &*self.crates {
             // Create all crate output directories first to make sure rustdoc uses
             // relative links.
             // FIXME: Cargo should probably do this itself.
@@ -785,7 +770,7 @@ macro_rules! tool_doc {
 
                 if true $(&& $rustc_tool)? {
                     // Build rustc docs so that we generate relative links.
-                    builder.ensure(Rustc { stage, target });
+                    builder.ensure(Rustc::new(stage, target, builder));
 
                     // Rustdoc needs the rustc sysroot available to build.
                     // FIXME: is there a way to only ensure `check::Rustc` here? Last time I tried it failed
diff --git a/src/bootstrap/test.rs b/src/bootstrap/test.rs
index 25941fc64c5..960abb31b20 100644
--- a/src/bootstrap/test.rs
+++ b/src/bootstrap/test.rs
@@ -220,7 +220,7 @@ impl Step for HtmlCheck {
         }
         // Ensure that a few different kinds of documentation are available.
         builder.default_doc(&[]);
-        builder.ensure(crate::doc::Rustc { target: self.target, stage: builder.top_stage });
+        builder.ensure(crate::doc::Rustc::new(builder.top_stage, self.target, builder));
 
         try_run(builder, builder.tool_cmd(Tool::HtmlChecker).arg(builder.doc_out(self.target)));
     }
@@ -886,11 +886,11 @@ impl Step for RustdocJSStd {
                     command.arg("--test-file").arg(path);
                 }
             }
-            builder.ensure(crate::doc::Std {
-                target: self.target,
-                stage: builder.top_stage,
-                format: DocumentationFormat::HTML,
-            });
+            builder.ensure(crate::doc::Std::new(
+                builder.top_stage,
+                self.target,
+                DocumentationFormat::HTML,
+            ));
             builder.run(&mut command);
         } else {
             builder.info("No nodejs found, skipping \"tests/rustdoc-js-std\" tests");