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//===-- Distro.cpp --------------------------------------------------------===//
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Defines the DetectDistro utility function (helper for driver).
#include "Distro.h"
#include "llvm/Support/Host.h"
namespace distro {
// DetectDistro tries to detect the linux distro on which we're running.
// NB: we're sweeping a lot of cross-compilation issues under the rug here; the
// working assumption is that users will have to rely on a sysroot in such
// cases.
DistroVariety DetectDistro(gnutools::gccdetect::InspectFS &ifs,
const llvm::Triple &target) {
// Not linux? no distro.
if (!target.isOSLinux())
return DistroUnknown;
llvm::Triple HostTriple(llvm::sys::getProcessTriple());
if (!HostTriple.isOSLinux())
return DistroUnknown;
if (ifs.exists("/etc/debian_version"))
return DistroDebian;
if (ifs.exists("/etc/lsb-release"))
return DistroUbuntu;
if (ifs.exists("/etc/redhat-release"))
return DistroRedhat;
if (ifs.exists("/etc/SuSE-release"))
return DistroOpenSUSE;
if (ifs.exists("/etc/alpine-release"))
return DistroAlpine;
if (ifs.exists("/etc/arch-release"))
return DistroArchLinux;
if (ifs.exists("/etc/gentoo-release"))
return DistroGentoo;
return DistroUnknown;