Class: Serverspec::Backend::Exec

Inherits:
Object
  • Object
show all
Defined in:
lib/serverspec/backend/exec.rb

Direct Known Subclasses

Puppet, Ssh

Instance Method Summary collapse

Constructor Details

#initialize(commands) ⇒ Exec

Returns a new instance of Exec.



4
5
6
 
# File 'lib/serverspec/backend/exec.rb', line 4

def initialize(commands)
  @commands ||= commands
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(meth, *args, &block) ⇒ Object

Default action is to call check_zero with args



32
33
34
35
36
 
# File 'lib/serverspec/backend/exec.rb', line 32

def method_missing(meth, *args, &block)
  # Remove example object from *args
  @example = args.shift
  check_zero(meth, *args)
end

Instance Method Details

#check_executable(example, file, by_whom) ⇒ Object 



87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
 
# File 'lib/serverspec/backend/exec.rb', line 87

def check_executable(example, file, by_whom)
  @example = example
  mode = sprintf('%04s',run_command(commands.get_mode(file))[:stdout].strip)
  mode = mode.split('')
  mode_octal = mode[0].to_i * 512 + mode[1].to_i * 64 + mode[2].to_i * 8 + mode[3].to_i * 1
  case by_whom
  when nil
    mode_octal & 0111 != 0
  when 'owner'
    mode_octal & 0100 != 0
  when 'group'
    mode_octal & 0010 != 0
  when 'others'
    mode_octal & 0001 != 0
  end
end

#check_mounted(example, path, expected_attr, only_with) ⇒ Object 



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
131
132
133
134
135
136
 
# File 'lib/serverspec/backend/exec.rb', line 104

def check_mounted(example, path, expected_attr, only_with)
  @example = example
  ret = run_command(commands.check_mounted(path))
  if expected_attr.nil? || ret[:exit_status] != 0
    return ret[:exit_status] == 0
  end

  mount = ret[:stdout].scan(/\S+/)
  actual_attr    = { :device => mount[0], :type => mount[4] }
  mount[5].gsub(/\(|\)/, '').split(',').each do |option|
    name, val = option.split('=')
    if val.nil?
      actual_attr[name.to_sym] = true
    else
      val = val.to_i if val.match(/^\d+$/)
      actual_attr[name.to_sym] = val
    end
  end

  if ! expected_attr[:options].nil?
    expected_attr.merge!(expected_attr[:options])
    expected_attr.delete(:options)
  end

  if only_with
    actual_attr == expected_attr
  else
    expected_attr.each do |key, val|
      return false if actual_attr[key] != val
    end
    true
  end
end

#check_os ⇒ Object 



157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
 
# File 'lib/serverspec/backend/exec.rb', line 157

def check_os
  if run_command('ls /etc/redhat-release')[:exit_status] == 0
    'RedHat'
  elsif run_command('ls /etc/system-release')[:exit_status] == 0
    'RedHat' # Amazon Linux
  elsif run_command('ls /etc/debian_version')[:exit_status] == 0
    'Debian'
  elsif run_command('ls /etc/gentoo-release')[:exit_status] == 0
    'Gentoo'
  elsif run_command('uname -s')[:stdout] =~ /SunOS/i
    'Solaris'
  elsif run_command('uname -s')[:stdout] =~ /Darwin/i
    'Darwin'
  end
end

#check_readable(example, file, by_whom) ⇒ Object 



53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
 
# File 'lib/serverspec/backend/exec.rb', line 53

def check_readable(example, file, by_whom)
  @example = example
  mode = sprintf('%04s',run_command(commands.get_mode(file))[:stdout].strip)
  mode = mode.split('')
  mode_octal = mode[0].to_i * 512 + mode[1].to_i * 64 + mode[2].to_i * 8 + mode[3].to_i * 1
  case by_whom
  when nil
    mode_octal & 0444 != 0
  when 'owner'
    mode_octal & 0400 != 0
  when 'group'
    mode_octal & 0040 != 0
  when 'others'
    mode_octal & 0004 != 0
  end
end

#check_routing_table(example, expected_attr) ⇒ Object 



138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
 
# File 'lib/serverspec/backend/exec.rb', line 138

def check_routing_table(example, expected_attr)
  @example = example
  return false if ! expected_attr[:destination]
  ret = run_command(commands.check_routing_table(expected_attr[:destination]))
  return false if ret[:exit_status] != 0

  ret[:stdout] =~ /^(\S+)(?: via (\S+))? dev (\S+).+\r\n(?:default via (\S+))?/
  actual_attr = {
    :destination => $1,
    :gateway     => $2 ? $2 : $4,
    :interface   => expected_attr[:interface] ? $3 : nil
  }

  expected_attr.each do |key, val|
    return false if actual_attr[key] != val
  end
  true
end

#check_running(example, process) ⇒ Object 



38
39
40
41
42
43
44
45
 
# File 'lib/serverspec/backend/exec.rb', line 38

def check_running(example, process)
  @example = example
  ret = run_command(commands.check_running(process))
  if ret[:exit_status] == 1 || ret[:stdout] =~ /stopped/
    ret = run_command(commands.check_process(process))
  end
  ret[:exit_status] == 0
end

#check_running_under_supervisor(example, process) ⇒ Object 



47
48
49
50
51
 
# File 'lib/serverspec/backend/exec.rb', line 47

def check_running_under_supervisor(example, process)
  @example = example
  ret = run_command(commands.check_running_under_supervisor(process))
  ret[:exit_status] == 0 && ret[:stdout] =~ /RUNNING/
end

#check_writable(example, file, by_whom) ⇒ Object 



70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
 
# File 'lib/serverspec/backend/exec.rb', line 70

def check_writable(example, file, by_whom)
  @example = example
  mode = sprintf('%04s',run_command(commands.get_mode(file))[:stdout].strip)
  mode = mode.split('')
  mode_octal = mode[0].to_i * 512 + mode[1].to_i * 64 + mode[2].to_i * 8 + mode[3].to_i * 1
  case by_whom
  when nil
    mode_octal & 0222 != 0
  when 'owner'
    mode_octal & 0200 != 0
  when 'group'
    mode_octal & 0020 != 0
  when 'others'
    mode_octal & 0002 != 0
  end
end

#check_zero(cmd, *args) ⇒ Object 



26
27
28
29
 
# File 'lib/serverspec/backend/exec.rb', line 26

def check_zero(cmd, *args)
  ret = run_command(commands.send(cmd, *args))
  ret[:exit_status] == 0
end

#commands ⇒ Object 



8
9
10
 
# File 'lib/serverspec/backend/exec.rb', line 8

def commands
  @commands
end

#run_command(cmd, opts = {}) ⇒ Object 



12
13
14
15
16
17
18
19
20
21
22
23
24
 
# File 'lib/serverspec/backend/exec.rb', line 12

def run_command(cmd, opts={})
  stdout = `PATH=/sbin:/usr/sbin:$PATH #{cmd} 2>&1`
  # In ruby 1.9, it is possible to use Open3.capture3, but not in 1.8
  #stdout, stderr, status = Open3.capture3(cmd)

  if ! @example.nil?
    @example.metadata[:command] = cmd
    @example.metadata[:stdout]  = stdout
  end

  { :stdout => stdout, :stderr => nil,
    :exit_status => $?, :exit_signal => nil }
end