Version.cpp revision 221345 
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
20namespace clang {
21
22std::string getClangRepositoryPath() {
23#if defined(CLANG_REPOSITORY_STRING)
24  return CLANG_REPOSITORY_STRING;
25#else
26#ifdef SVN_REPOSITORY
27  llvm::StringRef URL(SVN_REPOSITORY);
28#else
29  llvm::StringRef URL("");
30#endif
31
32  // If the SVN_REPOSITORY is empty, try to use the SVN keyword. This helps us
33  // pick up a tag in an SVN export, for example.
34  static llvm::StringRef SVNRepository("$URL: http://llvm.org/svn/llvm-project/cfe/trunk/lib/Basic/Version.cpp $");
35  if (URL.empty()) {
36    URL = SVNRepository.slice(SVNRepository.find(':'),
37                              SVNRepository.find("/lib/Basic"));
38  }
39
40  // Strip off version from a build from an integration branch.
41  URL = URL.slice(0, URL.find("/src/tools/clang"));
42
43  // Trim path prefix off, assuming path came from standard cfe path.
44  size_t Start = URL.find("cfe/");
45  if (Start != llvm::StringRef::npos)
46    URL = URL.substr(Start + 4);
47
48  return URL;
49#endif
50}
51
52std::string getClangRevision() {
53#ifdef SVN_REVISION
54  return SVN_REVISION;
55#else
56  return "";
57#endif
58}
59
60std::string getClangFullRepositoryVersion() {
61  std::string buf;
62  llvm::raw_string_ostream OS(buf);
63  std::string Path = getClangRepositoryPath();
64  std::string Revision = getClangRevision();
65  if (!Path.empty())
66    OS << Path;
67  if (!Revision.empty()) {
68    if (!Path.empty())
69      OS << ' ';
70    OS << Revision;
71  }
72  return OS.str();
73}
74
75std::string getClangFullVersion() {
76  std::string buf;
77  llvm::raw_string_ostream OS(buf);
78#ifdef CLANG_VENDOR
79  OS << CLANG_VENDOR;
80#endif
81  OS << "clang version " CLANG_VERSION_STRING " ("
82     << getClangFullRepositoryVersion() << ')';
83
84#ifdef CLANG_VENDOR_SUFFIX
85  OS << CLANG_VENDOR_SUFFIX;
86#elif defined(CLANG_VENDOR)
87  // If vendor supplied, include the base LLVM version as well.
88  OS << " (based on LLVM " << PACKAGE_VERSION << ")";
89#endif
90
91  return OS.str();
92}
93
94std::string getClangFullCPPVersion() {
95  // The version string we report in __VERSION__ is just a compacted version of
96  // the one we report on the command line.
97  std::string buf;
98  llvm::raw_string_ostream OS(buf);
99#ifdef CLANG_VENDOR
100  OS << CLANG_VENDOR;
101#endif
102  OS << "Clang " CLANG_VERSION_STRING " ("
103     << getClangFullRepositoryVersion() << ')';
104  return OS.str();
105}
106
107} // end namespace clang
108