add xtask doctest

tlyu · tlyu · commit c2ac77453ad1 · 2026-05-03T22:39:25.000-05:00
Add a new `xtask`` command `doctest` that runs `mdbook test`. This ensures that `rustdoc`, when run from `mdbook`, will use the toolchain override. fixes rust-lang#2251
diff --git a/tools/xtask/src/main.rs b/tools/xtask/src/main.rs
@@ -18,6 +18,7 @@ fn main() -> Result<()> {
             cargo_test()?;
             eprintln!("all tests passed!");
         }
+        Some("doctest") => mdbook_test()?,
         Some("linkcheck") => linkcheck(args)?,
         Some("style-check") => style_check()?,
         Some("-h" | "--help") => eprintln!("valid options: {OPTIONS}"),

Original file line number	Diff line number	Diff line change
`@@ -18,6 +18,7 @@ fn main() -> Result<()> {`
`18`	`18`	`cargo_test()?;`
`19`	`19`	`eprintln!("all tests passed!");`
`20`	`20`	`}`
	`21`	`+ Some("doctest") => mdbook_test()?,`
`21`	`22`	`Some("linkcheck") => linkcheck(args)?,`
`22`	`23`	`Some("style-check") => style_check()?,`
`23`	`24`	`Some("-h" \| "--help") => eprintln!("valid options: {OPTIONS}"),`