feat(xtask): add xtask doc

.github/workflows/ci.yml

@@ -57,20 +57,16 @@ jobs:
       - run: rustup component add rustfmt
       - run: cargo fmt -- --check
 
-  check-docs:
-    name: Check docs
+  doc:
+    name: Doc
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - uses: mkroening/rust-toolchain-toml@main
-      - run: rustup target add x86_64-unknown-none aarch64-unknown-none-softfloat
       - uses: Swatinem/rust-cache@v2
         with:
           save-if: ${{ github.ref == 'refs/heads/main' }}
-      - name: Check docs
-        run: |
-          cargo doc --package hermit-kernel --no-deps --document-private-items --target x86_64-unknown-none
-          cargo doc --package hermit-kernel --no-deps --document-private-items --target aarch64-unknown-none-softfloat --no-default-features
+      - run: cargo xtask doc
 
   build:
     name: Build

xtask/src/arch.rs

@@ -15,6 +15,10 @@ pub enum Arch {
 }
 
 impl Arch {
+	pub fn all() -> &'static [Self] {
+		&[Self::X86_64, Self::Aarch64, Self::Riscv64]
+	}
+
 	pub fn install(&self) -> Result<()> {
 		let sh = crate::sh()?;
 		let triple = self.triple();

xtask/src/clippy.rs

@@ -12,10 +12,10 @@ impl Clippy {
 	pub fn run(self) -> Result<()> {
 		let sh = crate::sh()?;
 
-		for target in [Arch::X86_64, Arch::Aarch64, Arch::Riscv64] {
-			target.install()?;
+		for arch in Arch::all() {
+			arch.install()?;
 
-			let triple = target.triple();
+			let triple = arch.triple();
 			cmd!(sh, "cargo clippy --target={triple}").run()?;
 			cmd!(sh, "cargo clippy --target={triple}")
 				.arg("--no-default-features")
@@ -29,7 +29,7 @@ impl Clippy {
 				.arg("--features=acpi,fsgsbase,pci,smp,vga")
 				.run()?;
 
-			if target == Arch::Riscv64 {
+			if *arch == Arch::Riscv64 {
 				cmd!(sh, "cargo clippy --target={triple}")
 					.arg("--no-default-features")
 					.arg("--features=gem-net,tcp")

xtask/src/doc.rs

@@ -0,0 +1,30 @@
+use anyhow::Result;
+use clap::Args;
+use xshell::cmd;
+
+use crate::arch::Arch;
+
+/// Run rustdoc for all targets.
+#[derive(Args)]
+pub struct Doc;
+
+impl Doc {
+	pub fn run(self) -> Result<()> {
+		let sh = crate::sh()?;
+
+		let mut doc = cmd!(
+			sh,
+			"cargo doc --package hermit-kernel --no-deps --document-private-items"
+		);
+
+		for arch in Arch::all() {
+			arch.install()?;
+			let triple = arch.triple();
+			doc = doc.arg(format!("--target={triple}"));
+		}
+
+		doc.run()?;
+
+		Ok(())
+	}
+}

xtask/src/main.rs

@@ -8,6 +8,7 @@ mod build;
 mod cargo_build;
 mod ci;
 mod clippy;
+mod doc;
 
 use std::path::Path;
 
@@ -22,6 +23,7 @@ enum Cli {
 	#[command(subcommand)]
 	Ci(ci::Ci),
 	Clippy(clippy::Clippy),
+	Doc(doc::Doc),
 }
 
 impl Cli {
@@ -30,6 +32,7 @@ impl Cli {
 			Self::Build(build) => build.run(),
 			Self::Ci(ci) => ci.run(),
 			Self::Clippy(clippy) => clippy.run(),
+			Self::Doc(doc) => doc.run(),
 		}
 	}
 }