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 "clang/Basic/LLVM.h" 16 #include "llvm/Support/raw_ostream.h" 17 #include "llvm/Config/config.h" 18 #include <cstring> 19 #include <cstdlib> 20 21 namespace clang { 22 23 std::string getClangRepositoryPath() { 24 #if defined(CLANG_REPOSITORY_STRING) 25 return CLANG_REPOSITORY_STRING; 26 #else 27 #ifdef SVN_REPOSITORY 28 StringRef URL(SVN_REPOSITORY); 29 #else 30 StringRef URL(""); 31 #endif 32 33 // If the SVN_REPOSITORY is empty, try to use the SVN keyword. This helps us 34 // pick up a tag in an SVN export, for example. 35 static StringRef SVNRepository("$URL$"); 36 if (URL.empty()) { 37 URL = SVNRepository.slice(SVNRepository.find(':'), 38 SVNRepository.find("/lib/Basic")); 39 } 40 41 // Strip off version from a build from an integration branch. 42 URL = URL.slice(0, URL.find("/src/tools/clang")); 43 44 // Trim path prefix off, assuming path came from standard cfe path. 45 size_t Start = URL.find("cfe/"); 46 if (Start != StringRef::npos) 47 URL = URL.substr(Start + 4); 48 49 return URL; 50 #endif 51 } 52 53 std::string getLLVMRepositoryPath() { 54 #ifdef LLVM_REPOSITORY 55 StringRef URL(LLVM_REPOSITORY); 56 #else 57 StringRef URL(""); 58 #endif 59 60 // Trim path prefix off, assuming path came from standard llvm path. 61 // Leave "llvm/" prefix to distinguish the following llvm revision from the 62 // clang revision. 63 size_t Start = URL.find("llvm/"); 64 if (Start != StringRef::npos) 65 URL = URL.substr(Start); 66 67 return URL; 68 } 69 70 std::string getClangRevision() { 71 #ifdef SVN_REVISION 72 return SVN_REVISION; 73 #else 74 return ""; 75 #endif 76 } 77 78 std::string getLLVMRevision() { 79 #ifdef LLVM_REVISION 80 return LLVM_REVISION; 81 #else 82 return ""; 83 #endif 84 } 85 86 std::string getClangFullRepositoryVersion() { 87 std::string buf; 88 llvm::raw_string_ostream OS(buf); 89 std::string Path = getClangRepositoryPath(); 90 std::string Revision = getClangRevision(); 91 if (!Path.empty() || !Revision.empty()) { 92 OS << '('; 93 if (!Path.empty()) 94 OS << Path; 95 if (!Revision.empty()) { 96 if (!Path.empty()) 97 OS << ' '; 98 OS << Revision; 99 } 100 OS << ')'; 101 } 102 // Support LLVM in a separate repository. 103 std::string LLVMRev = getLLVMRevision(); 104 if (!LLVMRev.empty() && LLVMRev != Revision) { 105 OS << " ("; 106 std::string LLVMRepo = getLLVMRepositoryPath(); 107 if (!LLVMRepo.empty()) 108 OS << LLVMRepo << ' '; 109 OS << LLVMRev << ')'; 110 } 111 return OS.str(); 112 } 113 114 std::string getClangFullVersion() { 115 std::string buf; 116 llvm::raw_string_ostream OS(buf); 117 #ifdef CLANG_VENDOR 118 OS << CLANG_VENDOR; 119 #endif 120 OS << "clang version " CLANG_VERSION_STRING " " 121 << getClangFullRepositoryVersion(); 122 123 // If vendor supplied, include the base LLVM version as well. 124 #ifdef CLANG_VENDOR 125 OS << " (based on LLVM " << PACKAGE_VERSION << ")"; 126 #endif 127 128 return OS.str(); 129 } 130 131 std::string getClangFullCPPVersion() { 132 // The version string we report in __VERSION__ is just a compacted version of 133 // the one we report on the command line. 134 std::string buf; 135 llvm::raw_string_ostream OS(buf); 136 #ifdef CLANG_VENDOR 137 OS << CLANG_VENDOR; 138 #endif 139 OS << "Clang " CLANG_VERSION_STRING " (" 140 << getClangFullRepositoryVersion() << ')'; 141 return OS.str(); 142 } 143 144 } // end namespace clang 145
