integrate build_helper::npm into js checks and package.json usage

src/build_helper/src/npm.rs

@@ -3,23 +3,34 @@ use std::path::{Path, PathBuf};
 use std::process::Command;
 use std::{fs, io};
 
-/// Install an exact package version, and return the path of `node_modules`.
-pub fn install_one(
-    out_dir: &Path,
-    npm_bin: &Path,
-    pkg_name: &str,
-    pkg_version: &str,
-) -> Result<PathBuf, io::Error> {
+use crate::ci::CiEnv;
+
+/// Install all the npm deps, and return the path of `node_modules`.
+pub fn install(src_root_path: &Path, out_dir: &Path, npm: &Path) -> Result<PathBuf, io::Error> {
     let nm_path = out_dir.join("node_modules");
-    let _ = fs::create_dir(&nm_path);
-    let mut child = Command::new(npm_bin)
-        .arg("install")
-        .arg("--audit=false")
-        .arg("--fund=false")
-        .arg(format!("{pkg_name}@{pkg_version}"))
-        .current_dir(out_dir)
-        .spawn()?;
-    let exit_status = child.wait()?;
+    let copy_to_build = |p| {
+        fs::copy(src_root_path.join(p), out_dir.join(p)).map_err(|e| {
+            eprintln!("unable to copy {p:?} to build directory: {e:?}");
+            e
+        })
+    };
+    // copy stuff to the output directory to make node_modules get put there.
+    copy_to_build("package.json")?;
+    copy_to_build("package-lock.json")?;
+
+    let mut cmd = Command::new(npm);
+    if CiEnv::is_ci() {
+        // `npm ci` redownloads every time and thus is too slow for local development.
+        cmd.arg("ci");
+    } else {
+        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 invokations.
+    cmd.args(&["--audit=false", "--save=false", "--fund=false"]);
+    cmd.current_dir(out_dir);
+    let exit_status = cmd.spawn()?.wait()?;
     if !exit_status.success() {
         eprintln!("npm install did not exit successfully");
         return Err(io::Error::other(Box::<dyn Error + Send + Sync>::from(format!(

src/tools/rustdoc-gui-test/src/main.rs

@@ -65,10 +65,8 @@ fn main() -> Result<(), ()> {
         }
     }
 
-    // FIXME(binarycat): once we get package.json in version control, this should be updated to install via that instead
-    let local_node_modules =
-        npm::install_one(&config.out_dir, &config.npm, "browser-ui-test", "0.21.1")
-            .expect("unable to install browser-ui-test");
+    let local_node_modules = npm::install(&config.rust_src, &config.out_dir, &config.npm)
+        .expect("unable to install browser-ui-test");
 
     let mut command = Command::new(&config.nodejs);
 

src/tools/tidy/src/ext_tool_checks/rustdoc_js.rs

@@ -2,11 +2,11 @@
 //! characters.
 
 use std::ffi::OsStr;
+use std::io;
 use std::path::{Path, PathBuf};
 use std::process::{Child, Command};
-use std::{fs, io};
 
-use build_helper::ci::CiEnv;
+use build_helper::npm;
 use ignore::DirEntry;
 
 use crate::walk::walk_no_read;
@@ -24,38 +24,9 @@ fn spawn_cmd(cmd: &mut Command) -> Result<Child, io::Error> {
 
 /// install all js dependencies from package.json.
 pub(super) fn npm_install(root_path: &Path, outdir: &Path) -> Result<(), super::Error> {
-    let copy_to_build = |p| {
-        fs::copy(root_path.join(p), outdir.join(p)).map_err(|e| {
-            eprintln!("unable to copy {p:?} to build directory: {e:?}");
-            e
-        })
-    };
-    // copy stuff to the output directory to make node_modules get put there.
-    copy_to_build("package.json")?;
-    copy_to_build("package-lock.json")?;
-
-    let mut cmd = Command::new("npm");
-    if CiEnv::is_ci() {
-        // `npm ci` redownloads every time and thus is too slow for local development.
-        cmd.arg("ci");
-    } else {
-        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 invokations.
-    cmd.args(&["--audit=false", "--save=false", "--fund=false"]);
-    cmd.current_dir(outdir);
-    let mut child = spawn_cmd(&mut cmd)?;
-    match child.wait() {
-        Ok(exit_status) => {
-            if exit_status.success() {
-                return Ok(());
-            }
-            Err(super::Error::FailedCheck("npm install"))
-        }
-        Err(error) => Err(super::Error::Generic(format!("npm install failed: {error:?}"))),
-    }
+    // FIXME(lolbinarycat): make this obey build.npm bootstrap option
+    npm::install(root_path, outdir, Path::new("npm"))?;
+    Ok(())
 }
 
 fn rustdoc_js_files(librustdoc_path: &Path) -> Vec<PathBuf> {