[llvm] [llvm] Include LLVM_REPOSITORY and LLVM_REVISION in tool version (PR #84990)

[Jonas Devlieghere via llvm-commits]

https://github.com/JDevlieghere created https://github.com/llvm/llvm-project/pull/84990

Include the `LLVM_REPOSITORY` and `LLVM_REVISION` in the version output of tools using `cl::PrintVersionMessage()` such as dwarfdump and dsymutil.

Before:

```
$ llvm-dwarfdump --version
LLVM (http://llvm.org/):
  LLVM version 19.0.0git
  Optimized build with assertions.
```

After:

```
$ llvm-dwarfdump --version
LLVM (http://llvm.org/):
  LLVM version 19.0.0git (git at github.com:llvm/llvm-project.git 8467457afc61d70e881c9817ace26356ef757733)
  Optimized build with assertions.
```

rdar://121526866

>From 39ac5fb536d09f27d9b0212d05d6d79add07fb71 Mon Sep 17 00:00:00 2001
From: Jonas Devlieghere <jonas at devlieghere.com>
Date: Tue, 12 Mar 2024 16:19:44 -0700
Subject: [PATCH] [llvm] Include LLVM_REPOSITORY and LLVM_REVISION in tool
 version

Include the LLVM_REPOSITORY and LLVM_REVISION in the version output of
tools using cl::PrintVersionMessage().
---
 llvm/lib/Support/CommandLine.cpp | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/llvm/lib/Support/CommandLine.cpp b/llvm/lib/Support/CommandLine.cpp
index c076ae8b843179..42dbc4de200303 100644
--- a/llvm/lib/Support/CommandLine.cpp
+++ b/llvm/lib/Support/CommandLine.cpp
@@ -39,6 +39,7 @@
 #include "llvm/Support/Path.h"
 #include "llvm/Support/Process.h"
 #include "llvm/Support/StringSaver.h"
+#include "llvm/Support/VCSRevision.h"
 #include "llvm/Support/VirtualFileSystem.h"
 #include "llvm/Support/raw_ostream.h"
 #include <cstdlib>
@@ -2538,7 +2539,15 @@ class VersionPrinter {
 #else
     OS << "LLVM (http://llvm.org/):\n  ";
 #endif
-    OS << PACKAGE_NAME << " version " << PACKAGE_VERSION << "\n  ";
+    OS << PACKAGE_NAME << " version " << PACKAGE_VERSION;
+#ifdef LLVM_REPOSITORY
+    OS << " (" << LLVM_REPOSITORY;
+#ifdef LLVM_REVISION
+    OS << ' ' << LLVM_REVISION;
+#endif
+    OS << ')';
+#endif
+    OS << "\n  ";
 #if LLVM_IS_DEBUG_BUILD
     OS << "DEBUG build";
 #else