143 lines
5.3 KiB
C++
143 lines
5.3 KiB
C++
//===--- Distro.cpp - Linux distribution detection support ------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Driver/Distro.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/ADT/StringSwitch.h"
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#include "llvm/Support/ErrorOr.h"
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#include "llvm/Support/MemoryBuffer.h"
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using namespace clang::driver;
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using namespace clang;
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static Distro::DistroType DetectDistro(vfs::FileSystem &VFS) {
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llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> File =
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VFS.getBufferForFile("/etc/lsb-release");
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if (File) {
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StringRef Data = File.get()->getBuffer();
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SmallVector<StringRef, 16> Lines;
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Data.split(Lines, "\n");
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Distro::DistroType Version = Distro::UnknownDistro;
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for (StringRef Line : Lines)
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if (Version == Distro::UnknownDistro && Line.startswith("DISTRIB_CODENAME="))
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Version = llvm::StringSwitch<Distro::DistroType>(Line.substr(17))
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.Case("hardy", Distro::UbuntuHardy)
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.Case("intrepid", Distro::UbuntuIntrepid)
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.Case("jaunty", Distro::UbuntuJaunty)
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.Case("karmic", Distro::UbuntuKarmic)
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.Case("lucid", Distro::UbuntuLucid)
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.Case("maverick", Distro::UbuntuMaverick)
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.Case("natty", Distro::UbuntuNatty)
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.Case("oneiric", Distro::UbuntuOneiric)
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.Case("precise", Distro::UbuntuPrecise)
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.Case("quantal", Distro::UbuntuQuantal)
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.Case("raring", Distro::UbuntuRaring)
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.Case("saucy", Distro::UbuntuSaucy)
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.Case("trusty", Distro::UbuntuTrusty)
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.Case("utopic", Distro::UbuntuUtopic)
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.Case("vivid", Distro::UbuntuVivid)
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.Case("wily", Distro::UbuntuWily)
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.Case("xenial", Distro::UbuntuXenial)
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.Case("yakkety", Distro::UbuntuYakkety)
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.Case("zesty", Distro::UbuntuZesty)
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.Case("artful", Distro::UbuntuArtful)
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.Case("bionic", Distro::UbuntuBionic)
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.Case("cosmic", Distro::UbuntuCosmic)
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.Default(Distro::UnknownDistro);
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if (Version != Distro::UnknownDistro)
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return Version;
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}
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File = VFS.getBufferForFile("/etc/redhat-release");
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if (File) {
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StringRef Data = File.get()->getBuffer();
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if (Data.startswith("Fedora release"))
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return Distro::Fedora;
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if (Data.startswith("Red Hat Enterprise Linux") ||
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Data.startswith("CentOS") ||
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Data.startswith("Scientific Linux")) {
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if (Data.find("release 7") != StringRef::npos)
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return Distro::RHEL7;
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else if (Data.find("release 6") != StringRef::npos)
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return Distro::RHEL6;
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else if (Data.find("release 5") != StringRef::npos)
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return Distro::RHEL5;
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}
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return Distro::UnknownDistro;
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}
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File = VFS.getBufferForFile("/etc/debian_version");
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if (File) {
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StringRef Data = File.get()->getBuffer();
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// Contents: < major.minor > or < codename/sid >
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int MajorVersion;
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if (!Data.split('.').first.getAsInteger(10, MajorVersion)) {
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switch (MajorVersion) {
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case 5:
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return Distro::DebianLenny;
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case 6:
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return Distro::DebianSqueeze;
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case 7:
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return Distro::DebianWheezy;
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case 8:
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return Distro::DebianJessie;
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case 9:
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return Distro::DebianStretch;
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case 10:
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return Distro::DebianBuster;
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default:
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return Distro::UnknownDistro;
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}
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}
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return llvm::StringSwitch<Distro::DistroType>(Data.split("\n").first)
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.Case("squeeze/sid", Distro::DebianSqueeze)
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.Case("wheezy/sid", Distro::DebianWheezy)
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.Case("jessie/sid", Distro::DebianJessie)
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.Case("stretch/sid", Distro::DebianStretch)
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.Default(Distro::UnknownDistro);
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}
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File = VFS.getBufferForFile("/etc/SuSE-release");
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if (File) {
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StringRef Data = File.get()->getBuffer();
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SmallVector<StringRef, 8> Lines;
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Data.split(Lines, "\n");
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for (const StringRef& Line : Lines) {
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if (!Line.trim().startswith("VERSION"))
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continue;
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std::pair<StringRef, StringRef> SplitLine = Line.split('=');
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// Old versions have split VERSION and PATCHLEVEL
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// Newer versions use VERSION = x.y
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std::pair<StringRef, StringRef> SplitVer = SplitLine.second.trim().split('.');
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int Version;
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// OpenSUSE/SLES 10 and older are not supported and not compatible
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// with our rules, so just treat them as Distro::UnknownDistro.
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if (!SplitVer.first.getAsInteger(10, Version) && Version > 10)
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return Distro::OpenSUSE;
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return Distro::UnknownDistro;
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}
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return Distro::UnknownDistro;
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}
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if (VFS.exists("/etc/exherbo-release"))
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return Distro::Exherbo;
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if (VFS.exists("/etc/alpine-release"))
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return Distro::AlpineLinux;
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if (VFS.exists("/etc/arch-release"))
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return Distro::ArchLinux;
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return Distro::UnknownDistro;
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}
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Distro::Distro(vfs::FileSystem &VFS) : DistroVal(DetectDistro(VFS)) {}
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