From d313c46c279ab50a281ff58a42fb4cb4eeadf25b Mon Sep 17 00:00:00 2001
From: Vishant Prabhakaran <vishant.prabhakaran@twosigma.com>
Date: Fri, 29 Sep 2023 22:48:01 -0400
Subject: [PATCH] Add "v8 version" subcommand to llnode

Fixes: https://github.com/nodejs/llnode/issues/194
---
 binding.gyp   |  1 +
 src/llnode.cc | 10 ++++++++++
 src/llnode.h  |  6 ++++++
 3 files changed, 17 insertions(+)

diff --git a/binding.gyp b/binding.gyp
index 1ca15925..ae225c8b 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -62,6 +62,7 @@
       "src/node-constants.cc",
       "src/settings.cc",
     ],
+    "cflags": [ '-DLLNODE_VERSION=<!(grep -Po \'"version": \K(".*")\' <(module_root_dir)/package.json)' ],
     "conditions": [
       [ "OS == 'win'", {
         "sources": [
diff --git a/src/llnode.cc b/src/llnode.cc
index 3d400e3b..1d308890 100644
--- a/src/llnode.cc
+++ b/src/llnode.cc
@@ -394,6 +394,12 @@ std::string GetActiveRequestsCmd::GetResultMessage(node::Environment* env,
   return result_message.str();
 }
 
+bool GetLLNodeVersionCmd::DoExecute(SBDebugger d, char** cmd,
+				    SBCommandReturnObject& result) {
+  result.Printf("llnode version %s", LLNODE_VERSION);
+  return true;
+}
+
 
 void InitDebugMode() {
   bool is_debug_mode = false;
@@ -522,6 +528,10 @@ bool PluginInitialize(SBDebugger d) {
       "Print all pending requests in the queue. Equivalent to "
       "running process._getActiveRequests() on the living process.\n");
 
+  v8.AddCommand(
+      "version", new llnode::GetLLNodeVersionCmd(),
+      "print llnode version");
+
   // Set initial value for color support
   llnode::Settings* settings = llnode::Settings::GetSettings();
   settings->SetColor("auto");
diff --git a/src/llnode.h b/src/llnode.h
index 5a02425f..b7d6cf86 100644
--- a/src/llnode.h
+++ b/src/llnode.h
@@ -100,6 +100,12 @@ class GetActiveRequestsCmd : public WorkqueueCmd {
   std::string GetResultMessage(node::Environment* env, Error& err) override;
 };
 
+class GetLLNodeVersionCmd : public CommandBase {
+ public:
+  bool DoExecute(lldb::SBDebugger d, char** cmd,
+                 lldb::SBCommandReturnObject& result) override;
+};
+
 
 }  // namespace llnode