cli: ensure --run has proper pwd

doc/api/cli.md

@@ -2022,6 +2022,8 @@ the current directory, to the `PATH` in order to execute the binaries from
 different folders where multiple `node_modules` directories are present, if
 `ancestor-folder/node_modules/.bin` is a directory.
 
+`--run` executes the command in the directory containing the related `package.json`.
+
 For example, the following command will run the `test` script of
 the `package.json` in the current folder:
 

src/node_task_runner.cc

@@ -205,6 +205,9 @@ void ProcessRunner::OnExit(int64_t exit_status, int term_signal) {
 }
 
 void ProcessRunner::Run() {
+  // keeps the string alive until destructor
+  auto cwd = package_json_path_.parent_path();
+  options_.cwd = cwd.c_str();
   if (int r = uv_spawn(loop_, &process_, &options_)) {
     fprintf(stderr, "Error: %s\n", uv_strerror(r));
   }
@@ -253,7 +256,7 @@ void RunTask(std::shared_ptr<InitializationResultImpl> result,
   auto package_json = FindPackageJson(cwd);
 
   if (!package_json.has_value()) {
-    fprintf(stderr, "Can't read package.json\n");
+    fprintf(stderr, "Can't find package.json for directory %s\n", cwd.c_str());
     result->exit_code_ = ExitCode::kGenericUserError;
     return;
   }
@@ -269,44 +272,66 @@ void RunTask(std::shared_ptr<InitializationResultImpl> result,
   simdjson::ondemand::object main_object;
   simdjson::error_code error = json_parser.iterate(raw_json).get(document);
 
+  if (error) {
+    fprintf(stderr, "Can't parse %s\n", path.c_str());
+    result->exit_code_ = ExitCode::kGenericUserError;
+    return;
+  }
   // If document is not an object, throw an error.
-  if (error || document.get_object().get(main_object)) {
-    fprintf(stderr, "Can't parse package.json\n");
+  auto root_error = document.get_object().get(main_object);
+  if (root_error) {
+    if (root_error == simdjson::error_code::INCORRECT_TYPE) {
+      fprintf(stderr,
+              "Root value unexpected not an object for %s\n\n",
+              path.c_str());
+    } else {
+      fprintf(stderr, "Can't parse %s\n", path.c_str());
+    }
     result->exit_code_ = ExitCode::kGenericUserError;
     return;
   }
 
   // If package_json object doesn't have "scripts" field, throw an error.
   simdjson::ondemand::object scripts_object;
   if (main_object["scripts"].get_object().get(scripts_object)) {
-    fprintf(stderr, "Can't find \"scripts\" field in package.json\n");
+    fprintf(stderr, "Can't find \"scripts\" field in %s\n", path.c_str());
     result->exit_code_ = ExitCode::kGenericUserError;
     return;
   }
 
   // If the command_id is not found in the scripts object, throw an error.
   std::string_view command;
-  if (scripts_object[command_id].get_string().get(command)) {
-    fprintf(stderr,
-            "Missing script: \"%.*s\"\n\n",
-            static_cast<int>(command_id.size()),
-            command_id.data());
-    fprintf(stderr, "Available scripts are:\n");
-
-    // Reset the object to iterate over it again
-    scripts_object.reset();
-    simdjson::ondemand::value value;
-    for (auto field : scripts_object) {
-      std::string_view key_str;
-      std::string_view value_str;
-      if (!field.unescaped_key().get(key_str) && !field.value().get(value) &&
-          !value.get_string().get(value_str)) {
-        fprintf(stderr,
-                "  %.*s: %.*s\n",
-                static_cast<int>(key_str.size()),
-                key_str.data(),
-                static_cast<int>(value_str.size()),
-                value_str.data());
+  auto command_error = scripts_object[command_id].get_string().get(command);
+  if (command_error) {
+    if (command_error == simdjson::error_code::INCORRECT_TYPE) {
+      fprintf(stderr,
+              "Script \"%.*s\" is unexpectedly not a string for %s\n\n",
+              static_cast<int>(command_id.size()),
+              command_id.data(),
+              path.c_str());
+    } else {
+      fprintf(stderr,
+              "Missing script: \"%.*s\" for %s\n\n",
+              static_cast<int>(command_id.size()),
+              command_id.data(),
+              path.c_str());
+      fprintf(stderr, "Available scripts are:\n");
+
+      // Reset the object to iterate over it again
+      scripts_object.reset();
+      simdjson::ondemand::value value;
+      for (auto field : scripts_object) {
+        std::string_view key_str;
+        std::string_view value_str;
+        if (!field.unescaped_key().get(key_str) && !field.value().get(value) &&
+            !value.get_string().get(value_str)) {
+          fprintf(stderr,
+                  "  %.*s: %.*s\n",
+                  static_cast<int>(key_str.size()),
+                  key_str.data(),
+                  static_cast<int>(value_str.size()),
+                  value_str.data());
+        }
       }
     }
     result->exit_code_ = ExitCode::kGenericUserError;

test/fixtures/run-script/invalid-json/package.json

@@ -0,0 +1,3 @@
+{
+  "scripts": {},
+}

test/fixtures/run-script/invalid-schema/package.json

@@ -0,0 +1,9 @@
+{
+  "scripts": {
+    "array": [],
+    "boolean": true,
+    "null": null,
+    "number": 1.0,
+    "object": {}
+  }
+}

test/fixtures/run-script/missing-scripts/package.json

@@ -0,0 +1 @@
+{}

test/fixtures/run-script/package.json

@@ -10,6 +10,8 @@
     "path-env": "path-env",
     "path-env-windows": "path-env.bat",
     "special-env-variables": "special-env-variables",
-    "special-env-variables-windows": "special-env-variables.bat"
+    "special-env-variables-windows": "special-env-variables.bat",
+    "pwd": "pwd",
+    "pwd-windows": "cd"
   }
 }

test/message/node_run_non_existent.out

@@ -1,4 +1,4 @@
-Missing script: "non-existent-command"
+Missing script: "non-existent-command" for *
 
 Available scripts are:
   test: echo "Error: no test specified" && exit 1
@@ -12,3 +12,5 @@ Available scripts are:
   path-env-windows: path-env.bat
   special-env-variables: special-env-variables
   special-env-variables-windows: special-env-variables.bat
+  pwd: pwd
+  pwd-windows: cd

test/parallel/test-node-run.js

@@ -1,6 +1,8 @@
 'use strict';
 
 const common = require('../common');
+common.requireNoPackageJSONAbove();
+
 const { it, describe } = require('node:test');
 const assert = require('node:assert');
 
@@ -15,7 +17,6 @@ describe('node --run [command]', () => {
       { cwd: __dirname },
     );
     assert.match(child.stderr, /ExperimentalWarning: Task runner is an experimental feature and might change at any time/);
-    assert.match(child.stderr, /Can't read package\.json/);
     assert.strictEqual(child.stdout, '');
     assert.strictEqual(child.code, 1);
   });
@@ -26,7 +27,9 @@ describe('node --run [command]', () => {
       [ '--no-warnings', '--run', 'test'],
       { cwd: __dirname },
     );
-    assert.match(child.stderr, /Can't read package\.json/);
+    assert.match(child.stderr, /Can't find package\.json[\s\S]*/);
+    // Ensure we show the path that starting path for the search
+    assert(child.stderr.includes(__dirname));
     assert.strictEqual(child.stdout, '');
     assert.strictEqual(child.code, 1);
   });
@@ -53,6 +56,101 @@ describe('node --run [command]', () => {
     assert.strictEqual(child.code, 0);
   });
 
+  it.only('chdirs into package directory', async () => {
+    const child = await common.spawnPromisified(
+      process.execPath,
+      [ '--no-warnings', '--run', `pwd${envSuffix}`],
+      { cwd: fixtures.path('run-script/sub-directory') },
+    );
+    assert.strictEqual(child.stdout.trim(), fixtures.path('run-script'));
+    assert.strictEqual(child.stderr, '');
+    assert.strictEqual(child.code, 0);
+  });
+
+  it('includes actionable info when possible', async () => {
+    {
+      const child = await common.spawnPromisified(
+        process.execPath,
+        [ '--no-warnings', '--run', 'missing'],
+        { cwd: fixtures.path('run-script') },
+      );
+      assert.strictEqual(child.stdout, '');
+      assert(child.stderr.includes(fixtures.path('run-script/package.json')));
+      assert(child.stderr.includes('no test specified'));
+      assert.strictEqual(child.code, 1);
+    }
+    {
+      const child = await common.spawnPromisified(
+        process.execPath,
+        [ '--no-warnings', '--run', 'test'],
+        { cwd: fixtures.path('run-script/missing-scripts') },
+      );
+      assert.strictEqual(child.stdout, '');
+      assert(child.stderr.includes(fixtures.path('run-script/missing-scripts/package.json')));
+      assert.strictEqual(child.code, 1);
+    }
+    {
+      const child = await common.spawnPromisified(
+        process.execPath,
+        [ '--no-warnings', '--run', 'test'],
+        { cwd: fixtures.path('run-script/invalid-json') },
+      );
+      assert.strictEqual(child.stdout, '');
+      assert(child.stderr.includes(fixtures.path('run-script/invalid-json/package.json')));
+      assert.strictEqual(child.code, 1);
+    }
+    {
+      const child = await common.spawnPromisified(
+        process.execPath,
+        [ '--no-warnings', '--run', 'array'],
+        { cwd: fixtures.path('run-script/invalid-schema') },
+      );
+      assert.strictEqual(child.stdout, '');
+      assert(child.stderr.includes(fixtures.path('run-script/invalid-schema/package.json')));
+      assert.strictEqual(child.code, 1);
+    }
+    {
+      const child = await common.spawnPromisified(
+        process.execPath,
+        [ '--no-warnings', '--run', 'boolean'],
+        { cwd: fixtures.path('run-script/invalid-schema') },
+      );
+      assert.strictEqual(child.stdout, '');
+      assert(child.stderr.includes(fixtures.path('run-script/invalid-schema/package.json')));
+      assert.strictEqual(child.code, 1);
+    }
+    {
+      const child = await common.spawnPromisified(
+        process.execPath,
+        [ '--no-warnings', '--run', 'null'],
+        { cwd: fixtures.path('run-script/invalid-schema') },
+      );
+      assert.strictEqual(child.stdout, '');
+      assert(child.stderr.includes(fixtures.path('run-script/invalid-schema/package.json')));
+      assert.strictEqual(child.code, 1);
+    }
+    {
+      const child = await common.spawnPromisified(
+        process.execPath,
+        [ '--no-warnings', '--run', 'number'],
+        { cwd: fixtures.path('run-script/invalid-schema') },
+      );
+      assert.strictEqual(child.stdout, '');
+      assert(child.stderr.includes(fixtures.path('run-script/invalid-schema/package.json')));
+      assert.strictEqual(child.code, 1);
+    }
+    {
+      const child = await common.spawnPromisified(
+        process.execPath,
+        [ '--no-warnings', '--run', 'object'],
+        { cwd: fixtures.path('run-script/invalid-schema') },
+      );
+      assert.strictEqual(child.stdout, '');
+      assert(child.stderr.includes(fixtures.path('run-script/invalid-schema/package.json')));
+      assert.strictEqual(child.code, 1);
+    }
+  });
+
   it('appends positional arguments', async () => {
     const child = await common.spawnPromisified(
       process.execPath,