[do not merge] CI experiments

package.json

@@ -3,7 +3,6 @@
     "browser-ui-test": "^0.22.2",
     "es-check": "^6.2.1",
     "eslint": "^8.57.1",
-    "eslint-js": "github:eslint/js",
     "typescript": "^5.8.3"
   }
 }

src/build_helper/src/npm.rs

@@ -20,16 +20,19 @@ pub fn install(src_root_path: &Path, out_dir: &Path, npm: &Path) -> Result<PathB
 
     let mut cmd = Command::new(npm);
     if CiEnv::is_ci() {
+        eprintln!("Running npm ci");
         // `npm ci` redownloads every time and thus is too slow for local development.
         cmd.arg("ci");
     } else {
+        eprintln!("Running npm install");
         cmd.arg("install");
     }
     // disable a bunch of things we don't want.
     // this makes tidy output less noisy, and also significantly improves runtime
     // of repeated tidy invocations.
     cmd.args(&["--audit=false", "--save=false", "--fund=false"]);
     cmd.current_dir(out_dir);
+    eprintln!("Executing {cmd:?}");
     let exit_status = cmd.spawn()?.wait()?;
     if !exit_status.success() {
         eprintln!("npm install did not exit successfully");

src/tools/tidy/src/extra_checks/mod.rs

@@ -324,7 +324,9 @@ fn check_impl(
     }
 
     if js_lint || js_typecheck {
+        eprintln!("Running npm install");
         rustdoc_js::npm_install(root_path, outdir, npm)?;
+        eprintln!("Finished npm install");
     }
 
     if js_lint {