cli: implement node run <script-in-package-json>

lib/internal/main/run.js

@@ -0,0 +1,51 @@
+'use strict';
+
+const {
+  JSONParse,
+  ObjectKeys,
+} = primordials;
+
+const {
+  prepareMainThreadExecution,
+  markBootstrapComplete,
+} = require('internal/process/pre_execution');
+const { getPackageJSONScripts } = internalBinding('modules');
+const { execSync } = require('child_process');
+const { log, error } = require('internal/console/global');
+
+prepareMainThreadExecution(false, false);
+
+markBootstrapComplete();
+
+const json_string = getPackageJSONScripts('package.json');
+
+// Check if package.json exists and is parseable
+if (json_string === undefined) {
+  process.exit(1);
+  return;
+}
+const scripts = JSONParse(json_string);
+const id = process.argv.at(2);
+const command = scripts[id];
+
+if (!command) {
+  error(`Missing script: "${id}"`);
+
+  const keys = ObjectKeys(scripts);
+  if (keys.length === 0) {
+    error('There are no scripts available in package.json');
+  } else {
+    error('Available scripts are:\n');
+    for (const script of ObjectKeys(scripts)) {
+      error(`  ${script}: ${scripts[script]}`);
+    }
+  }
+  process.exit(1);
+}
+
+log('');
+log('>', id);
+log('>', command);
+log('');
+
+execSync(command, { stdio: 'inherit' });

src/node.cc

@@ -409,6 +409,10 @@ MaybeLocal<Value> StartExecution(Environment* env, StartExecutionCallback cb) {
     return StartExecution(env, "internal/main/watch_mode");
   }
 
+  if (!first_argv.empty() && first_argv == "run") {
+    return StartExecution(env, "internal/main/run");
+  }
+
   if (!first_argv.empty() && first_argv != "-") {
     return StartExecution(env, "internal/main/run_main_module");
   }

src/node_modules.cc

@@ -219,6 +219,21 @@ const BindingData::PackageConfig* BindingData::GetPackageJSON(
       if (field_value == "commonjs" || field_value == "module") {
         package_config.type = field_value;
       }
+    } else if (key == "scripts") {
+      if (value.type().get(field_type)) {
+        return throw_invalid_package_config();
+      }
+      switch (field_type) {
+        case simdjson::ondemand::json_type::object: {
+          if (value.raw_json().get(field_value)) {
+            return throw_invalid_package_config();
+          }
+          package_config.scripts = field_value;
+          break;
+        }
+        default:
+          break;
+      }
     }
   }
   // package_config could be quite large, so we should move it instead of
@@ -344,6 +359,33 @@ void BindingData::GetNearestParentPackageJSONType(
   args.GetReturnValue().Set(Array::New(realm->isolate(), values, 3));
 }
 
+void BindingData::GetPackageJSONScripts(
+    const FunctionCallbackInfo<Value>& args) {
+  CHECK_EQ(args.Length(), 1);
+  CHECK(args[0]->IsString());
+
+  Realm* realm = Realm::GetCurrent(args);
+  Utf8Value path(realm->isolate(), args[0]);
+
+  THROW_IF_INSUFFICIENT_PERMISSIONS(
+      realm->env(),
+      permission::PermissionScope::kFileSystemRead,
+      path.ToStringView());
+
+  auto package_json = GetPackageJSON(realm, path.ToString());
+  if (package_json == nullptr) {
+    printf("Can't read package.json\n");
+    return;
+  } else if (!package_json->scripts.has_value()) {
+    printf("Package.json scripts doesn't exist or parseable\n");
+    return;
+  }
+
+  args.GetReturnValue().Set(
+      ToV8Value(realm->context(), package_json->scripts.value())
+          .ToLocalChecked());
+}
+
 void BindingData::GetPackageScopeConfig(
     const FunctionCallbackInfo<Value>& args) {
   CHECK_GE(args.Length(), 1);
@@ -424,6 +466,7 @@ void BindingData::CreatePerIsolateProperties(IsolateData* isolate_data,
             "getNearestParentPackageJSON",
             GetNearestParentPackageJSON);
   SetMethod(isolate, target, "getPackageScopeConfig", GetPackageScopeConfig);
+  SetMethod(isolate, target, "getPackageJSONScripts", GetPackageJSONScripts);
 }
 
 void BindingData::CreatePerContextProperties(Local<Object> target,
@@ -440,6 +483,7 @@ void BindingData::RegisterExternalReferences(
   registry->Register(GetNearestParentPackageJSONType);
   registry->Register(GetNearestParentPackageJSON);
   registry->Register(GetPackageScopeConfig);
+  registry->Register(GetPackageJSONScripts);
 }
 
 }  // namespace modules

src/node_modules.h

@@ -32,6 +32,7 @@ class BindingData : public SnapshotableObject {
     std::string type = "none";
     std::optional<std::string> exports;
     std::optional<std::string> imports;
+    std::optional<std::string> scripts;
     std::string raw_json;
 
     v8::Local<v8::Array> Serialize(Realm* realm) const;
@@ -60,6 +61,8 @@ class BindingData : public SnapshotableObject {
       const v8::FunctionCallbackInfo<v8::Value>& args);
   static void GetPackageScopeConfig(
       const v8::FunctionCallbackInfo<v8::Value>& args);
+  static void GetPackageJSONScripts(
+      const v8::FunctionCallbackInfo<v8::Value>& args);
 
   static void CreatePerIsolateProperties(IsolateData* isolate_data,
                                          v8::Local<v8::ObjectTemplate> ctor);

typings/internalBinding/modules.d.ts

@@ -26,4 +26,5 @@ export interface ModulesBinding {
     string, // raw content
   ]
   getPackageScopeConfig(path: string): SerializedPackageConfig | undefined
+  getPackageJSONScripts(path: string): string | undefined
 }