From: Daniel Dunbar <daniel@zuster.org>
Date: Wed, 29 Sep 2010 17:57:10 +0000 (+0000)
Subject: Basic: Add support for git svn to get the repo version in clang executable,
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=640cf37c9432031412a9d3b8c2abcdff4f7f0e97;p=clang

Basic: Add support for git svn to get the repo version in clang executable,
patch by Jonathan Mulder!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@115049 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/Basic/Version.h b/include/clang/Basic/Version.h
index 9948677662..59d82925fb 100644
--- a/include/clang/Basic/Version.h
+++ b/include/clang/Basic/Version.h
@@ -48,7 +48,7 @@ namespace clang {
   
   /// \brief Retrieves the repository revision number (or identifer) from which
   ///  this Clang was built.
-  std::string getClangRevision();
+  llvm::StringRef getClangRevision();
   
   /// \brief Retrieves the full repository version that is an amalgamation of
   ///  the information in getClangRepositoryPath() and getClangRevision().
diff --git a/lib/Basic/Makefile b/lib/Basic/Makefile
index c156304595..7dd5221710 100644
--- a/lib/Basic/Makefile
+++ b/lib/Basic/Makefile
@@ -18,8 +18,10 @@ include $(CLANG_LEVEL)/Makefile
 
 SVN_REVISION := $(shell $(LLVM_SRC_ROOT)/utils/GetSourceVersion $(PROJ_SRC_DIR)/../..)
 
+SVN_REPOSITORY := $(shell $(LLVM_SRC_ROOT)/utils/GetRepositoryPath $(PROJ_SRC_DIR)/../..) 
+
 CPP.Defines += -I$(PROJ_SRC_DIR)/../../include -I$(PROJ_OBJ_DIR)/../../include \
-         -DSVN_REVISION='"$(SVN_REVISION)"'
+         -DSVN_REVISION='"$(SVN_REVISION)"' -DSVN_REPOSITORY='"$(SVN_REPOSITORY)"'
 
 $(ObjDir)/.ver-svn .ver: $(ObjDir)/.dir
 	@if [ '$(SVN_REVISION)' != '$(shell cat $(ObjDir)/.ver-svn 2>/dev/null)' ]; then\
diff --git a/lib/Basic/Version.cpp b/lib/Basic/Version.cpp
index 036ee00545..e9649e284d 100644
--- a/lib/Basic/Version.cpp
+++ b/lib/Basic/Version.cpp
@@ -21,26 +21,27 @@ using namespace std;
 namespace clang {
   
 llvm::StringRef getClangRepositoryPath() {
-  static const char URL[] = "$URL$";
-  const char *URLEnd = URL + strlen(URL);
+#ifdef SVN_REPOSITORY
+  if (SVN_REPOSITORY[0] != '\0') {
+    static const char URL[] = SVN_REPOSITORY;
+    const char *URLEnd = URL + strlen(URL) - 1;
 
-  const char *End = strstr(URL, "/lib/Basic");
-  if (End)
-    URLEnd = End;
+    // Strip off version from a build from an integration branch.
+    const char *End = strstr(URL, "/src/tools/clang");
+    if (End)
+      URLEnd = End;
 
-  // Strip off version from a build from an integration branch.
-  End = strstr(URL, "/src/tools/clang");
-  if (End)
-    URLEnd = End;
+    const char *Begin = strstr(URL, "cfe/");
+    if (Begin)
+      return llvm::StringRef(Begin + 4, URLEnd - Begin - 4);
 
-  const char *Begin = strstr(URL, "cfe/");
-  if (Begin)
-    return llvm::StringRef(Begin + 4, URLEnd - Begin - 4);
-
-  return llvm::StringRef(URL, URLEnd - URL);
+    return llvm::StringRef(URL, URLEnd - URL);
+  }
+#endif
+  return "";
 }
 
-std::string getClangRevision() {
+llvm::StringRef getClangRevision() {
 #ifdef SVN_REVISION
   if (SVN_REVISION[0] != '\0') {
     std::string revision;
@@ -55,10 +56,15 @@ std::string getClangRevision() {
 std::string getClangFullRepositoryVersion() {
   std::string buf;
   llvm::raw_string_ostream OS(buf);
-  OS << getClangRepositoryPath();
-  const std::string &Revision = getClangRevision();
-  if (!Revision.empty())
-    OS << ' ' << Revision;
+  const llvm::StringRef &Path = getClangRepositoryPath();
+  const llvm::StringRef &Revision = getClangRevision();
+  if (!Path.empty())
+    OS << Path;
+  if (!Revision.empty()) {
+    if (!Path.empty())
+      OS << ' ';
+    OS << Revision;
+  }
   return OS.str();
 }