src: improve parsing of boolean options

src/node_config_file.cc

@@ -59,8 +59,12 @@ ParseResult ConfigReader::ParseNodeOptions(
             FPrintF(stderr, "Invalid value for %s\n", it->first.c_str());
             return ParseResult::InvalidContent;
           }
-          node_options_.push_back(it->first + "=" +
-                                  (result ? "true" : "false"));
+
+          if (result) {
+            // If the value is true, we need to set the flag
+            node_options_.push_back(it->first);
+          }
+
           break;
         }
         // String array can allow both string and array types

test/fixtures/rc/inspect-false.json

@@ -0,0 +1,5 @@
+{
+  "nodeOptions": {
+    "inspect": false
+  }
+}

test/fixtures/rc/inspect-true.json

@@ -0,0 +1,5 @@
+{
+  "nodeOptions": {
+    "inspect": true
+  }
+}

test/parallel/test-config-file.js

@@ -232,6 +232,32 @@ test('host port flag should be parsed correctly', { skip: !process.features.insp
   strictEqual(result.code, 0);
 });
 
+test('--inspect=true should be parsed correctly', { skip: !process.features.inspector }, async () => {
+  const result = await spawnPromisified(process.execPath, [
+    '--no-warnings',
+    '--expose-internals',
+    '--experimental-config-file',
+    fixtures.path('rc/inspect-true.json'),
+    '-p', 'require("internal/options").getOptionValue("--inspect")',
+  ]);
+  match(result.stderr, /^Debugger listening on (ws:\/\/[^\s]+)/);
+  strictEqual(result.stdout, 'true\n');
+  strictEqual(result.code, 0);
+});
+
+test('--inspect=false should be parsed correctly', { skip: !process.features.inspector }, async () => {
+  const result = await spawnPromisified(process.execPath, [
+    '--no-warnings',
+    '--expose-internals',
+    '--experimental-config-file',
+    fixtures.path('rc/inspect-false.json'),
+    '-p', 'require("internal/options").getOptionValue("--inspect")',
+  ]);
+  strictEqual(result.stderr, '');
+  strictEqual(result.stdout, 'false\n');
+  strictEqual(result.code, 0);
+});
+
 test('no op flag should throw', async () => {
   const result = await spawnPromisified(process.execPath, [
     '--no-warnings',