From 42ab8ae8583745d48ce09c44741bbc0a77b9bca4 Mon Sep 17 00:00:00 2001
From: Joyee Cheung <joyeec9h3@gmail.com>
Date: Tue, 7 Feb 2023 01:37:17 +0100
Subject: [PATCH] cli: implement --run

---
 lib/internal/main/run.js | 45 ++++++++++++++++++++++++++++++++++++++++
 src/node.cc              |  4 ++++
 src/node_file.cc         |  1 +
 src/node_options.cc      |  3 +++
 src/node_options.h       |  1 +
 5 files changed, 54 insertions(+)
 create mode 100644 lib/internal/main/run.js

diff --git a/lib/internal/main/run.js b/lib/internal/main/run.js
new file mode 100644
index 00000000000000..129e4c8f4bf312
--- /dev/null
+++ b/lib/internal/main/run.js
@@ -0,0 +1,45 @@
+'use strict';
+
+const {
+  JSONParse,
+  ObjectKeys
+} = primordials;
+
+const {
+  prepareMainThreadExecution,
+  markBootstrapComplete
+} = require('internal/process/pre_execution');
+const { internalModuleReadJSON } = internalBinding('fs');
+const { execSync } = require('child_process');
+const { getOptionValue } = require('internal/options');
+const { log, error } = console;
+
+prepareMainThreadExecution(false, false);
+
+markBootstrapComplete();
+
+const result = internalModuleReadJSON('package.json');
+if (result.length === 0) {
+  error(`Can't read package.json`);
+  process.exit(1);
+}
+
+const json = JSONParse(result[0]);
+const id = getOptionValue('--run');
+const command = json.scripts[id];
+
+if (!command) {
+  error(`Missing script: "${id}"`);
+  error('Available scripts are:\n');
+  for (const script of ObjectKeys(json.scripts)) {
+    error(`  ${script}: ${json.scripts[script]}`);
+  }
+  process.exit(1);
+}
+
+log('');
+log('>', id);
+log('>', command);
+log('');
+
+execSync(command, { stdio: 'inherit' });
diff --git a/src/node.cc b/src/node.cc
index f92be4b089db87..b3c7b4383d298a 100644
--- a/src/node.cc
+++ b/src/node.cc
@@ -344,6 +344,10 @@ MaybeLocal<Value> StartExecution(Environment* env, StartExecutionCallback cb) {
     return StartExecution(env, "internal/main/watch_mode");
   }
 
+  if (!env->options()->run.empty()) {
+    return StartExecution(env, "internal/main/run");
+  }
+
   if (!first_argv.empty() && first_argv != "-") {
     return StartExecution(env, "internal/main/run_main_module");
   }
diff --git a/src/node_file.cc b/src/node_file.cc
index 49ed96eca05416..d2f733f02d4aba 100644
--- a/src/node_file.cc
+++ b/src/node_file.cc
@@ -1079,6 +1079,7 @@ static void InternalModuleReadJSON(const FunctionCallbackInfo<Value>& args) {
     } else if (n == 7) {
       if (0 == memcmp(s, "exports", 7)) break;
       if (0 == memcmp(s, "imports", 7)) break;
+      if (0 == memcmp(s, "scripts", 7)) break;
     }
   }
 
diff --git a/src/node_options.cc b/src/node_options.cc
index c1f97a5d9207eb..f9a13bdad73b66 100644
--- a/src/node_options.cc
+++ b/src/node_options.cc
@@ -506,6 +506,9 @@ EnvironmentOptionsParser::EnvironmentOptionsParser() {
   AddOption("--prof-process",
             "process V8 profiler output generated using --prof",
             &EnvironmentOptions::prof_process);
+  AddOption("--run",
+            "Run a script specified in package.json",
+            &EnvironmentOptions::run);
   // Options after --prof-process are passed through to the prof processor.
   AddAlias("--prof-process", { "--prof-process", "--" });
 #if HAVE_INSPECTOR
diff --git a/src/node_options.h b/src/node_options.h
index 07ec47d861c77f..d2ba9e2a3dde3a 100644
--- a/src/node_options.h
+++ b/src/node_options.h
@@ -178,6 +178,7 @@ class EnvironmentOptions : public Options {
       false;
 #endif  // DEBUG
 
+  std::string run;
   bool watch_mode = false;
   bool watch_mode_report_to_parent = false;
   bool watch_mode_preserve_output = false;