Library/Homebrew/requirements.rb


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127

require 'requirement'
require 'requirements/fortran_dependency'
require 'requirements/language_module_dependency'
require 'requirements/minimum_macos_requirement'
require 'requirements/mpi_dependency'
require 'requirements/osxfuse_dependency'
require 'requirements/python_dependency'
require 'requirements/x11_dependency'

class XcodeDependency < Requirement
  fatal true

  satisfy(:build_env => false) { MacOS::Xcode.installed? }

  def message
    message = <<-EOS.undent
      A full installation of Xcode.app is required to compile this software.
      Installing just the Command Line Tools is not sufficient.
    EOS
    if MacOS.version >= :lion
      message += <<-EOS.undent
        Xcode can be installed from the App Store.
      EOS
    else
      message += <<-EOS.undent
        Xcode can be installed from https://developer.apple.com/downloads/
      EOS
    end
  end
end

class MysqlDependency < Requirement
  fatal true
  default_formula 'mysql'

  satisfy { which 'mysql_config' }
end

class PostgresqlDependency < Requirement
  fatal true
  default_formula 'postgresql'

  satisfy { which 'pg_config' }
end

class TeXDependency < Requirement
  fatal true

  satisfy { which('tex') || which('latex') }

  def message;
    if File.exist?("/usr/texbin")
      texbin_path = "/usr/texbin"
    else
      texbin_path = "its bin directory"
    end

    <<-EOS.undent
    A LaTeX distribution is required for Homebrew to install this formula.

    You can install MacTeX distribution from:
      http://www.tug.org/mactex/

    Make sure that "/usr/texbin", or the location you installed it to, is in
    your PATH before proceeding.
    EOS
  end
end

class ArchRequirement < Requirement
  fatal true

  def initialize(arch)
    @arch = arch.pop
    super
  end

  satisfy do
    case @arch
    when :x86_64 then MacOS.prefer_64_bit?
    when :intel, :ppc then Hardware::CPU.type == @arch
    end
  end

  def message
    "This formula requires an #{@arch} architecture."
  end
end

class MercurialDependency < Requirement
  fatal true
  default_formula 'mercurial'

  satisfy { which('hg') }
end

class GitDependency < Requirement
  fatal true
  default_formula 'git'
  satisfy { !!which('git') }
end

class JavaDependency < Requirement
  fatal true
  satisfy { java_version }

  def initialize(tags)
    @version = tags.pop
    super
  end

  def java_version
    version_flag = " --version #{@version}+" if @version
    quiet_system "/usr/libexec/java_home --failfast#{version_flag}"
  end

  def message
    version_string = " #{@version}" if @version

    <<-EOS.undent
      Java#{version_string} is required for Homebrew to install this formula.

      You can install Java from:
        http://www.oracle.com/technetwork/java/javase/downloads/index.html
    EOS
  end
end