Distro.h revision 314564 
1//===--- Distro.h - Linux distribution detection support --------*- 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#ifndef LLVM_CLANG_DRIVER_DISTRO_H
11#define LLVM_CLANG_DRIVER_DISTRO_H
12
13#include "clang/Basic/VirtualFileSystem.h"
14
15namespace clang {
16namespace driver {
17
18/// Distro - Helper class for detecting and classifying Linux distributions.
19///
20/// This class encapsulates the clang Linux distribution detection mechanism
21/// as well as helper functions that match the specific (versioned) results
22/// into wider distribution classes.
23class Distro {
24public:
25  enum DistroType {
26    // NB: Releases of a particular Linux distro should be kept together
27    // in this enum, because some tests are done by integer comparison against
28    // the first and last known member in the family, e.g. IsRedHat().
29    ArchLinux,
30    DebianLenny,
31    DebianSqueeze,
32    DebianWheezy,
33    DebianJessie,
34    DebianStretch,
35    Exherbo,
36    RHEL5,
37    RHEL6,
38    RHEL7,
39    Fedora,
40    OpenSUSE,
41    UbuntuHardy,
42    UbuntuIntrepid,
43    UbuntuJaunty,
44    UbuntuKarmic,
45    UbuntuLucid,
46    UbuntuMaverick,
47    UbuntuNatty,
48    UbuntuOneiric,
49    UbuntuPrecise,
50    UbuntuQuantal,
51    UbuntuRaring,
52    UbuntuSaucy,
53    UbuntuTrusty,
54    UbuntuUtopic,
55    UbuntuVivid,
56    UbuntuWily,
57    UbuntuXenial,
58    UbuntuYakkety,
59    UbuntuZesty,
60    UnknownDistro
61  };
62
63private:
64  /// The distribution, possibly with specific version.
65  DistroType DistroVal;
66
67public:
68  /// @name Constructors
69  /// @{
70
71  /// Default constructor leaves the distribution unknown.
72  Distro() : DistroVal() {}
73
74  /// Constructs a Distro type for specific distribution.
75  Distro(DistroType D) : DistroVal(D) {}
76
77  /// Detects the distribution using specified VFS.
78  explicit Distro(clang::vfs::FileSystem& VFS);
79
80  bool operator==(const Distro &Other) const {
81    return DistroVal == Other.DistroVal;
82  }
83
84  bool operator!=(const Distro &Other) const {
85    return DistroVal != Other.DistroVal;
86  }
87
88  bool operator>=(const Distro &Other) const {
89    return DistroVal >= Other.DistroVal;
90  }
91
92  bool operator<=(const Distro &Other) const {
93    return DistroVal <= Other.DistroVal;
94  }
95
96  /// @}
97  /// @name Convenience Predicates
98  /// @{
99
100  bool IsRedhat() const {
101    return DistroVal == Fedora || (DistroVal >= RHEL5 && DistroVal <= RHEL7);
102  }
103
104  bool IsOpenSUSE() const {
105    return DistroVal == OpenSUSE;
106  }
107
108  bool IsDebian() const {
109    return DistroVal >= DebianLenny && DistroVal <= DebianStretch;
110  }
111
112  bool IsUbuntu() const {
113    return DistroVal >= UbuntuHardy && DistroVal <= UbuntuZesty;
114  }
115
116  /// @}
117};
118
119} // end namespace driver
120} // end namespace clang
121
122#endif
123