CI: nextest, line tables only, one wasm check (#4269)

* CI speed: line tables for workspace crates, no debug info for dependencies

* CI speed: xtask ci runs nextest and doctests, one wasm check, the CLI without default features

xtask/src/gates.rs

@@ -78,20 +78,32 @@ pub fn wasm(_: &[String]) -> anyhow::Result<()> {
         .filter(|c| matches!(layers::classify(&c.name), Some(layers::Class::Layer(_) | layers::Class::Standalone(_))))
         .map(|c| c.name)
         .collect();
-    let mut failed = Vec::new();
+    // One call over every crate: they share one dependency build, and `--keep-going` reports
+    // each failing crate instead of stopping at the first.
+    let mut c = cargo();
+    c.args(["check", "--target", "wasm32-unknown-unknown", "--keep-going"]);
     for pkg in &set {
-        let mut c = cargo();
-        c.args(["check", "--target", "wasm32-unknown-unknown", "-p", pkg]);
-        if run(c, &format!("cargo check --target wasm32-unknown-unknown -p {pkg}")).is_err() {
-            failed.push(pkg.clone());
-        }
+        c.args(["-p", pkg]);
     }
-    if failed.is_empty() {
-        println!("wasm32: {} crates ok", set.len());
-        Ok(())
+    run(c, &format!("cargo check --target wasm32-unknown-unknown --keep-going ({} crates)", set.len()))?;
+    println!("wasm32: {} crates ok", set.len());
+    Ok(())
+}
+
+/// The workspace tests. Unit and integration tests run under cargo-nextest when it is installed
+/// (one process per test, so the run is not held up by its slowest binary), else under
+/// `cargo test`; doctests run separately because nextest does not run them. Examples are left
+/// out of the test build: clippy `--all-targets` already checks that they compile.
+pub fn test(_: &[String]) -> anyhow::Result<()> {
+    let targets = ["--workspace", "--lib", "--bins", "--tests"];
+    let nextest = cargo().args(["nextest", "--version"]).output().is_ok_and(|o| o.status.success());
+    if nextest {
+        run_args(&[&["nextest", "run", "--no-fail-fast"][..], &targets].concat())?;
     } else {
-        bail!("wasm32 check failed for: {}", failed.join(", "))
+        eprintln!("test: cargo-nextest is not installed, using cargo test (cargo install cargo-nextest --locked)");
+        run_args(&[&["test", "--no-fail-fast"][..], &targets].concat())?;
     }
+    run_args(&["test", "--workspace", "--doc"])
 }
 
 pub fn ci(_: &[String]) -> anyhow::Result<()> {
@@ -99,7 +111,8 @@ pub fn ci(_: &[String]) -> anyhow::Result<()> {
     let steps: Vec<Step> = vec![
         ("fmt", Box::new(|| run_args(&["fmt", "--all", "--", "--check"]))),
         ("clippy", Box::new(|| run_args(&["clippy", "--workspace", "--all-targets", "--", "-D", "warnings"]))),
-        ("test", Box::new(|| run_args(&["test", "--workspace"]))),
+        ("cli-no-default-features", Box::new(|| run_args(&["check", "-p", "pdfcraft-cli", "--no-default-features"]))),
+        ("test", Box::new(|| test(&[]))),
         ("layers", Box::new(|| layers(&[]))),
         ("wasm", Box::new(|| wasm(&[]))),
         ("assets", Box::new(|| crate::assets::run(&[]))),

xtask/src/main.rs

@@ -19,9 +19,14 @@ type Command = fn(&[String]) -> anyhow::Result<()>;
 const COMMANDS: &[(&str, &str, Command)] = &[
     ("version", "Print the workspace version, or `version set X.Y.Z[-pre]` to change it and refresh Cargo.lock", version_cmd),
     ("layers", "Enforce the crate dependency layering (plan/architecture.md §3)", gates::layers),
-    ("wasm", "cargo check --target wasm32-unknown-unknown for every crate below L8", gates::wasm),
+    ("wasm", "cargo check --target wasm32-unknown-unknown for every crate below L8, in one call", gates::wasm),
     ("deny", "Dependency licences, bans, sources and advisories (deny.toml; needs cargo-deny)", gates::deny),
-    ("ci", "fmt --check, clippy -D warnings, test, layers, wasm, assets, deny, parity (stops at first failure)", gates::ci),
+    (
+        "ci",
+        "fmt --check, clippy -D warnings, the CLI without default features, test, layers, wasm, assets, deny, parity (stops at first failure)",
+        gates::ci,
+    ),
+    ("test", "Workspace tests: cargo nextest (cargo test when it is missing), then doctests", gates::test),
     ("assets", "Enforce the asset policy (AGENTS.md §1) against ATTRIBUTION.toml; --write regenerates ATTRIBUTION.md", assets::run),
     ("corpus", "Fetch the pinned pdf.js test corpus into corpus/ (git-ignored) and verify it; --update-pin re-records the pin", gates::corpus),
     ("check", "Robustness sweep over corpus/ with pdfcraft-cli; fails on crashes or regressions vs xtask/baselines", gates::check),