Distro.h revision 341825 
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    AlpineLinux,
30    ArchLinux,
31    DebianLenny,
32    DebianSqueeze,
33    DebianWheezy,
34    DebianJessie,
35    DebianStretch,
36    DebianBuster,
37    Exherbo,
38    RHEL5,
39    RHEL6,
40    RHEL7,
41    Fedora,
42    OpenSUSE,
43    UbuntuHardy,
44    UbuntuIntrepid,
45    UbuntuJaunty,
46    UbuntuKarmic,
47    UbuntuLucid,
48    UbuntuMaverick,
49    UbuntuNatty,
50    UbuntuOneiric,
51    UbuntuPrecise,
52    UbuntuQuantal,
53    UbuntuRaring,
54    UbuntuSaucy,
55    UbuntuTrusty,
56    UbuntuUtopic,
57    UbuntuVivid,
58    UbuntuWily,
59    UbuntuXenial,
60    UbuntuYakkety,
61    UbuntuZesty,
62    UbuntuArtful,
63    UbuntuBionic,
64    UbuntuCosmic,
65    UnknownDistro
66  };
67
68private:
69  /// The distribution, possibly with specific version.
70  DistroType DistroVal;
71
72public:
73  /// @name Constructors
74  /// @{
75
76  /// Default constructor leaves the distribution unknown.
77  Distro() : DistroVal() {}
78
79  /// Constructs a Distro type for specific distribution.
80  Distro(DistroType D) : DistroVal(D) {}
81
82  /// Detects the distribution using specified VFS.
83  explicit Distro(clang::vfs::FileSystem& VFS);
84
85  bool operator==(const Distro &Other) const {
86    return DistroVal == Other.DistroVal;
87  }
88
89  bool operator!=(const Distro &Other) const {
90    return DistroVal != Other.DistroVal;
91  }
92
93  bool operator>=(const Distro &Other) const {
94    return DistroVal >= Other.DistroVal;
95  }
96
97  bool operator<=(const Distro &Other) const {
98    return DistroVal <= Other.DistroVal;
99  }
100
101  /// @}
102  /// @name Convenience Predicates
103  /// @{
104
105  bool IsRedhat() const {
106    return DistroVal == Fedora || (DistroVal >= RHEL5 && DistroVal <= RHEL7);
107  }
108
109  bool IsOpenSUSE() const {
110    return DistroVal == OpenSUSE;
111  }
112
113  bool IsDebian() const {
114    return DistroVal >= DebianLenny && DistroVal <= DebianBuster;
115  }
116
117  bool IsUbuntu() const {
118    return DistroVal >= UbuntuHardy && DistroVal <= UbuntuCosmic;
119  }
120
121  bool IsAlpineLinux() const {
122    return DistroVal == AlpineLinux;
123  }
124
125  /// @}
126};
127
128} // end namespace driver
129} // end namespace clang
130
131#endif
132