Re-merge `A few updates around "transcript"` (#92843) (#94067)

Problematic PR: https://github.com/llvm/llvm-project/pull/92843
Reverted by: https://github.com/llvm/llvm-project/pull/94088

The first PR added a test which fails in Linux builds (see the last few
comments there).
This PR contains all the changes in the first PR, plus the fix to the
said test.

---------

Co-authored-by: Roy Shi <royshi@meta.com>

1 files changed, 16 insertions, 1 deletions

diff --git a/lldb/source/Interpreter/CommandInterpreter.cpp b/lldb/source/Interpreter/CommandInterpreter.cpp
index 6a61882d..acd6294c 100644
--- a/lldb/source/Interpreter/CommandInterpreter.cpp
+++ b/lldb/source/Interpreter/CommandInterpreter.cpp
@@ -6,6 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include <chrono>
 #include <cstdlib>
 #include <limits>
 #include <memory>
@@ -1909,6 +1910,11 @@ bool CommandInterpreter::HandleCommand(const char *command_line,
 
     transcript_item = std::make_shared<StructuredData::Dictionary>();
     transcript_item->AddStringItem("command", command_line);
+    transcript_item->AddIntegerItem(
+        "timestampInEpochSeconds",
+        std::chrono::duration_cast<std::chrono::seconds>(
+            std::chrono::system_clock::now().time_since_epoch())
+            .count());
     m_transcript.AddItem(transcript_item);
   }
 
@@ -2056,6 +2062,14 @@ bool CommandInterpreter::HandleCommand(const char *command_line,
         log, "HandleCommand, command line after removing command name(s): '%s'",
         remainder.c_str());
 
+    // To test whether or not transcript should be saved, `transcript_item` is
+    // used instead of `GetSaveTrasncript()`. This is because the latter will
+    // fail when the command is "settings set interpreter.save-transcript true".
+    if (transcript_item) {
+      transcript_item->AddStringItem("commandName", cmd_obj->GetCommandName());
+      transcript_item->AddStringItem("commandArguments", remainder);
+    }
+
     ElapsedTime elapsed(execute_time);
     cmd_obj->Execute(remainder.c_str(), result);
   }
@@ -2072,7 +2086,8 @@ bool CommandInterpreter::HandleCommand(const char *command_line,
 
     transcript_item->AddStringItem("output", result.GetOutputData());
     transcript_item->AddStringItem("error", result.GetErrorData());
-    transcript_item->AddFloatItem("seconds", execute_time.get().count());
+    transcript_item->AddFloatItem("durationInSeconds",
+                                  execute_time.get().count());
   }
 
   return result.Succeeded();