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bootstrap: doc: document std crates one by one #157143

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71 changes: 41 additions & 30 deletions src/bootstrap/src/core/build_steps/doc.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@
//! Everything here is basically just a shim around calling either `rustbook` or
//! `rustdoc`.

use std::collections::HashMap;
use std::io::{self, Write};
use std::path::{Path, PathBuf};
use std::{env, fs, mem};
Expand Down Expand Up @@ -792,40 +793,50 @@ fn doc_std(
// as a function parameter.
let out_dir = target_dir.join(target).join("doc");

let mut cargo = builder::Cargo::new(
builder,
build_compiler,
Mode::Std,
SourceType::InTree,
target,
Kind::Doc,
);
let mut crates = requested_crates.to_vec();
let std_lib_crate_order = STD_PUBLIC_CRATES

@Mark-Simulacrum Mark-Simulacrum Jun 7, 2026

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I think this is a regression in terms of needing STD_PUBLIC_CRATES again... right?

cc @jyn514 since you wrote #111955

@Fabian-Gruenbichler Fabian-Gruenbichler Jun 8, 2026

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yes, but it seems it is still required to document things in the right order. I am happy to fix this another way, but I haven't yet found a simple reproducer that allows me to figure out what takes a wrong turn where. if somebody has a clue, I am happy to take a closer look there :)

.iter()
.enumerate()
.map(|(i, v)| (v.to_string(), i))
.collect::<HashMap<_, _>>();
crates.sort_by_key(|c| std_lib_crate_order.get(c).unwrap_or(&usize::MAX));

compile::std_cargo(builder, target, &mut cargo, requested_crates);
cargo
.arg("--no-deps")
.arg("--target-dir")
.arg(&*target_dir.to_string_lossy())
.arg("-Zskip-rustdoc-fingerprint")
.arg("-Zrustdoc-map")
.rustdocflag("--extern-html-root-url")
.rustdocflag("std_detect=https://docs.rs/std_detect/latest/")
.rustdocflag("--extern-html-root-takes-precedence")
.rustdocflag("--resource-suffix")
.rustdocflag(&builder.version);
for arg in extra_args {
cargo.rustdocflag(arg);
}
for krate in crates {
let mut cargo = builder::Cargo::new(
builder,
build_compiler,
Mode::Std,
SourceType::InTree,
target,
Kind::Doc,
);

if builder.config.library_docs_private_items {
cargo.rustdocflag("--document-private-items").rustdocflag("--document-hidden-items");
}
compile::std_cargo(builder, target, &mut cargo, std::slice::from_ref(&krate));
cargo
.arg("--no-deps")
.arg("--target-dir")
.arg(&*target_dir.to_string_lossy())

@Mark-Simulacrum Mark-Simulacrum Jun 7, 2026

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It's preexisting, but I think we should be able to just pass target_dir here? Cargo::arg should take Path/OsStr.

.arg("-Zskip-rustdoc-fingerprint")
.arg("-Zrustdoc-map")
.rustdocflag("--extern-html-root-url")
.rustdocflag("std_detect=https://docs.rs/std_detect/latest/")
.rustdocflag("--extern-html-root-takes-precedence")
.rustdocflag("--resource-suffix")
.rustdocflag(&builder.version);
for arg in extra_args {
cargo.rustdocflag(arg);
}

let description =
format!("library{} in {} format", crate_description(requested_crates), format.as_str());
let _guard = builder.msg(Kind::Doc, description, Mode::Std, build_compiler, target);
if builder.config.library_docs_private_items {
cargo.rustdocflag("--document-private-items").rustdocflag("--document-hidden-items");
}

let description =
format!("library{} in {} format", crate_description(&[krate]), format.as_str());
let _guard = builder.msg(Kind::Doc, description, Mode::Std, build_compiler, target);
cargo.into_cmd().run(builder);
}

cargo.into_cmd().run(builder);
builder.cp_link_r(&out_dir, out);
}

Expand Down
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