Version.cpp revision 218893 
1//===- Version.cpp - Clang Version Number -----------------------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file defines several version-related utility functions for Clang.
11//
12//===----------------------------------------------------------------------===//
13
14#include "clang/Basic/Version.h"
15#include "llvm/Support/raw_ostream.h"
16#include "llvm/Config/config.h"
17#include <cstring>
18#include <cstdlib>
19
20using namespace std;
21
22namespace clang {
23
24std::string getClangRepositoryPath() {
25#ifdef SVN_REPOSITORY
26  llvm::StringRef URL(SVN_REPOSITORY);
27#else
28  llvm::StringRef URL("");
29#endif
30
31  // If the SVN_REPOSITORY is empty, try to use the SVN keyword. This helps us
32  // pick up a tag in an SVN export, for example.
33  static llvm::StringRef SVNRepository("$URL: http://llvm.org/svn/llvm-project/cfe/trunk/lib/Basic/Version.cpp $");
34  if (URL.empty()) {
35    URL = SVNRepository.slice(SVNRepository.find(':'),
36                              SVNRepository.find("/lib/Basic"));
37  }
38
39  // Strip off version from a build from an integration branch.
40  URL = URL.slice(0, URL.find("/src/tools/clang"));
41
42  // Trim path prefix off, assuming path came from standard cfe path.
43  size_t Start = URL.find("cfe/");
44  if (Start != llvm::StringRef::npos)
45    URL = URL.substr(Start + 4);
46
47  return URL;
48}
49
50std::string getClangRevision() {
51#ifdef SVN_REVISION
52  return SVN_REVISION;
53#else
54  return "";
55#endif
56}
57
58std::string getClangFullRepositoryVersion() {
59  std::string buf;
60  llvm::raw_string_ostream OS(buf);
61  std::string Path = getClangRepositoryPath();
62  std::string Revision = getClangRevision();
63  if (!Path.empty())
64    OS << Path;
65  if (!Revision.empty()) {
66    if (!Path.empty())
67      OS << ' ';
68    OS << Revision;
69  }
70  return OS.str();
71}
72
73std::string getClangFullVersion() {
74  std::string buf;
75  llvm::raw_string_ostream OS(buf);
76#ifdef CLANG_VENDOR
77  OS << CLANG_VENDOR;
78#endif
79  OS << "clang version " CLANG_VERSION_STRING " ("
80     << getClangFullRepositoryVersion() << ')';
81
82#ifdef CLANG_VENDOR_SUFFIX
83  OS << CLANG_VENDOR_SUFFIX;
84#elif defined(CLANG_VENDOR)
85  // If vendor supplied, include the base LLVM version as well.
86  OS << " (based on LLVM " << PACKAGE_VERSION << ")";
87#endif
88
89  return OS.str();
90}
91
92} // end namespace clang
93