aboutsummaryrefslogtreecommitdiff
path: root/clang/lib/Basic/Version.cpp
blob: d6564582e77268a00cee272e1f17e01cce12948d (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
//===- Version.cpp - Clang Version Number -----------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file defines several version-related utility functions for Clang.
//
//===----------------------------------------------------------------------===//

#include "clang/Basic/Version.h"
#include "clang/Basic/LLVM.h"
#include "clang/Config/config.h"
#include "llvm/Support/raw_ostream.h"
#include <cstdlib>
#include <cstring>

#ifdef HAVE_VCS_VERSION_INC
#include "VCSVersion.inc"
#endif

namespace clang {

std::string getClangRepositoryPath() {
#if defined(CLANG_REPOSITORY_STRING)
  return CLANG_REPOSITORY_STRING;
#else
#ifdef CLANG_REPOSITORY
  StringRef URL(CLANG_REPOSITORY);
#else
  StringRef URL("");
#endif

  // If the CLANG_REPOSITORY is empty, try to use the SVN keyword. This helps us
  // pick up a tag in an SVN export, for example.
  StringRef SVNRepository("$URL$");
  if (URL.empty()) {
    URL = SVNRepository.slice(SVNRepository.find(':'),
                              SVNRepository.find("/lib/Basic"));
  }

  // Strip off version from a build from an integration branch.
  URL = URL.slice(0, URL.find("/src/tools/clang"));

  // Trim path prefix off, assuming path came from standard cfe path.
  size_t Start = URL.find("cfe/");
  if (Start != StringRef::npos)
    URL = URL.substr(Start + 4);

  return URL;
#endif
}

std::string getLLVMRepositoryPath() {
#ifdef LLVM_REPOSITORY
  StringRef URL(LLVM_REPOSITORY);
#else
  StringRef URL("");
#endif

  // Trim path prefix off, assuming path came from standard llvm path.
  // Leave "llvm/" prefix to distinguish the following llvm revision from the
  // clang revision.
  size_t Start = URL.find("llvm/");
  if (Start != StringRef::npos)
    URL = URL.substr(Start);

  return URL;
}

std::string getClangRevision() {
#ifdef CLANG_REVISION
  return CLANG_REVISION;
#else
  return "";
#endif
}

std::string getLLVMRevision() {
#ifdef LLVM_REVISION
  return LLVM_REVISION;
#else
  return "";
#endif
}

std::string getClangFullRepositoryVersion() {
  std::string buf;
  llvm::raw_string_ostream OS(buf);
  std::string Path = getClangRepositoryPath();
  std::string Revision = getClangRevision();
  if (!Path.empty() || !Revision.empty()) {
    OS << '(';
    if (!Path.empty())
      OS << Path;
    if (!Revision.empty()) {
      if (!Path.empty())
        OS << ' ';
      OS << Revision;
    }
    OS << ')';
  }
  // Support LLVM in a separate repository.
  std::string LLVMRev = getLLVMRevision();
  if (!LLVMRev.empty() && LLVMRev != Revision) {
    OS << " (";
    std::string LLVMRepo = getLLVMRepositoryPath();
    if (!LLVMRepo.empty())
      OS << LLVMRepo << ' ';
    OS << LLVMRev << ')';
  }
  return OS.str();
}

std::string getClangFullVersion() {
  return getClangToolFullVersion("clang");
}

std::string getClangToolFullVersion(StringRef ToolName) {
  std::string buf;
  llvm::raw_string_ostream OS(buf);
#ifdef CLANG_VENDOR
  OS << CLANG_VENDOR;
#endif
  OS << ToolName << " version " CLANG_VERSION_STRING " "
     << getClangFullRepositoryVersion();

  // If vendor supplied, include the base LLVM version as well.
#ifdef CLANG_VENDOR
  OS << " (based on " << BACKEND_PACKAGE_STRING << ")";
#endif

  return OS.str();
}

std::string getClangFullCPPVersion() {
  // The version string we report in __VERSION__ is just a compacted version of
  // the one we report on the command line.
  std::string buf;
  llvm::raw_string_ostream OS(buf);
#ifdef CLANG_VENDOR
  OS << CLANG_VENDOR;
#endif
  OS << "Clang " CLANG_VERSION_STRING " " << getClangFullRepositoryVersion();
  return OS.str();
}

} // end namespace clang