aboutsummaryrefslogtreecommitdiffstats
path: root/Library/Homebrew/exceptions.rb
blob: ee4c2477d2d639ce689b83118604174150175065 (plain)
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
128
129
130
class UsageError < RuntimeError; end
class FormulaUnspecifiedError < UsageError; end
class KegUnspecifiedError < UsageError; end

class MultipleVersionsInstalledError < RuntimeError
  attr :name

  def initialize name
    @name = name
    super "#{name} has multiple installed versions"
  end
end

class NotAKegError < RuntimeError; end

class NoSuchKegError < RuntimeError
  attr :name

  def initialize name
    @name = name
    super "No such keg: #{HOMEBREW_CELLAR}/#{name}"
  end
end

class FormulaUnavailableError < RuntimeError
  attr :name

  def initialize name
    @name = name
    super "No available formula for #{name}"
  end
end

module Homebrew
  class InstallationError < RuntimeError
    attr :formula

    def initialize formula, message=""
      super message
      @formula = formula
    end
  end
end

class FormulaAlreadyInstalledError < Homebrew::InstallationError
  def message
    "Formula already installed: #{formula}"
  end
end

class FormulaInstallationAlreadyAttemptedError < Homebrew::InstallationError
  def message
    "Formula installation already attempted: #{formula}"
  end
end

class UnsatisfiedExternalDependencyError < Homebrew::InstallationError
  attr :type

  def initialize formula, type
    @type = type
    super formula, get_message(formula)
  end

  def get_message formula
    <<-EOS.undent
      Unsatisfied external dependency: #{formula}
      Homebrew does not provide #{type.to_s.capitalize} dependencies, #{tool} does:

          #{command_line} #{formula}
      EOS
  end

  private

  def tool
    case type
      when :python then 'easy_install'
      when :ruby, :jruby, :rbx then 'rubygems'
      when :perl then 'cpan'
      when :node then 'npm'
      when :chicken then 'chicken-install'
    end
  end

  def command_line
    case type
      when :python
        "easy_install"
      when :ruby
        "gem install"
      when :perl
        "cpan -i"
      when :jruby
        "jruby -S gem install"
      when :rbx
        "rbx gem install"
      when :node
        "npm install"
      when :chicken
        "chicken-install"
    end
  end
end

class BuildError < Homebrew::InstallationError
  attr :exit_status
  attr :command
  attr :env

  def initialize formula, cmd, args, es
    @command = cmd
    @env = ENV.to_hash
    @exit_status = es.exitstatus rescue 1
    args = args.map{ |arg| arg.to_s.gsub " ", "\\ " }.join(" ")
    super formula, "Failed executing: #{command} #{args}"
  end

  def was_running_configure?
    @command == './configure'
  end
end

# raised in CurlDownloadStrategy.fetch
class CurlDownloadStrategyError < RuntimeError
end

# raised by safe_system in utils.rb
class ErrorDuringExecution < RuntimeError
end