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//===- 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: https://llvm.org/svn/llvm-project/cfe/trunk/lib/Basic/Version.cpp $");
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
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