Class: SpecInfra::Backend::Exec

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

Direct Known Subclasses

Ssh

Instance Method Summary collapse

Methods inherited from Base

#check_zero, #commands, #method_missing, #set_commands, #set_example

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class SpecInfra::Backend::Base

Instance Method Details

#add_pre_command(cmd) ⇒ Object 



46
47
48
49
50
51
52
53
 
# File 'lib/specinfra/backend/exec.rb', line 46

def add_pre_command(cmd)
  path = SpecInfra.configuration.path
  if SpecInfra.configuration.pre_command
    cmd = "#{SpecInfra.configuration.pre_command} && #{cmd}"
    cmd = "env PATH=#{path}:$PATH #{cmd}" if path
  end
  cmd
end

#build_command(cmd) ⇒ Object 



36
37
38
39
40
41
42
43
44
 
# File 'lib/specinfra/backend/exec.rb', line 36

def build_command(cmd)
  path = SpecInfra.configuration.path
  if path
    cmd = "env PATH=#{path}:$PATH #{cmd}"
    cmd.gsub!(/(\&\&\s*!?\(?\s*)/, "\\1env PATH=#{path}:$PATH ")
    cmd.gsub!(/(\|\|\s*!?\(?\s*)/, "\\1env PATH=#{path}:$PATH ")
  end
  cmd
end

#check_executable(file, by_whom) ⇒ Object 



114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
 
# File 'lib/specinfra/backend/exec.rb', line 114

def check_executable(file, by_whom)
  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_monitored_by_monit(process) ⇒ Object 



71
72
73
74
75
76
77
78
79
80
 
# File 'lib/specinfra/backend/exec.rb', line 71

def check_monitored_by_monit(process)
  ret = run_command(commands.check_monitored_by_monit(process))
  return false unless ret[:stdout] != nil && ret[:exit_status] == 0

  retlines = ret[:stdout].split(/[\r\n]+/).map(&:strip)
  proc_index = retlines.index("Process '#{process}'")
  return false unless proc_index
  
  retlines[proc_index+2].match(/\Amonitoring status\s+monitored\Z/i) != nil
end

#check_mounted(path, expected_attr, only_with) ⇒ Object 



130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
 
# File 'lib/specinfra/backend/exec.rb', line 130

def check_mounted(path, expected_attr, only_with)
  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 



183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
 
# File 'lib/specinfra/backend/exec.rb', line 183

def check_os
  return SpecInfra.configuration.os if SpecInfra.configuration.os
  if run_command('ls /etc/redhat-release')[:exit_status] == 0
    line = run_command('cat /etc/redhat-release')[:stdout]
    if line =~ /release (\d[\d.]*)/
      release = $1
    end
    { :family => 'RedHat', :release => release }
  elsif run_command('ls /etc/system-release')[:exit_status] == 0
    { :family => 'RedHat', :release => nil } # Amazon Linux
  elsif run_command('ls /etc/debian_version')[:exit_status] == 0
    distro = run_command("lsb_release -i | grep 'Distributor ID:' | awk '{print $3}'")[:stdout]
    { :family => distro.strip, :release => nil }
  elsif run_command('ls /etc/gentoo-release')[:exit_status] == 0
    { :family => 'Gentoo', :release => nil }
  elsif run_command('ls /usr/lib/setup/Plamo-*')[:exit_status] == 0
    { :family => 'Plamo', :release => nil }
  elsif run_command('uname -s')[:stdout] =~ /AIX/i
    { :family => 'AIX', :release => nil }
  elsif (os = run_command('uname -sr')[:stdout]) && os =~ /SunOS/i
    if os =~ /5.10/
      { :family => 'Solaris10', :release => nil }
    elsif run_command('grep -q "Oracle Solaris 11" /etc/release')[:exit_status] == 0
      { :family => 'Solaris11', :release => nil }
    elsif run_command('grep -q SmartOS /etc/release')[:exit_status] == 0
      { :family => 'SmartOS', :release => nil }
    else
      { :family => 'Solaris', :release => nil }
    end
  elsif run_command('uname -s')[:stdout] =~ /Darwin/i
    { :family => 'Darwin', :release => nil }
  elsif run_command('uname -s')[:stdout] =~ /FreeBSD/i
    { :family => 'FreeBSD', :release => nil }
  else
    { :family => 'Base', :release => nil }
  end
end

#check_readable(file, by_whom) ⇒ Object 



82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
 
# File 'lib/specinfra/backend/exec.rb', line 82

def check_readable(file, by_whom)
  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(expected_attr) ⇒ Object 



163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
 
# File 'lib/specinfra/backend/exec.rb', line 163

def check_routing_table(expected_attr)
  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].gsub!(/\r\n/, "\n")

  ret[:stdout] =~ /^(\S+)(?: via (\S+))? dev (\S+).+\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(process) ⇒ Object 



55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
 
# File 'lib/specinfra/backend/exec.rb', line 55

def check_running(process)
  ret = run_command(commands.check_running(process))
  
  # In Ubuntu, some services are under upstart and "service foo status" returns
  # exit status 0 even though they are stopped.
  # So return false if stdout contains "stopped/waiting".
  return false if ret[:stdout] =~ /stopped\/waiting/

  # If the service is not registered, check by ps command
  if ret[:exit_status] == 1
    ret = run_command(commands.check_process(process))
  end

  ret[:exit_status] == 0
end

#check_writable(file, by_whom) ⇒ Object 



98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
 
# File 'lib/specinfra/backend/exec.rb', line 98

def check_writable(file, by_whom)
  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

#copy_file(from, to) ⇒ Object 



221
222
223
224
225
226
227
228
 
# File 'lib/specinfra/backend/exec.rb', line 221

def copy_file(from, to)
  begin
    FileUtils.cp(from, to)
  rescue => e
    return false
  end
  true
end

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



8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
 
# File 'lib/specinfra/backend/exec.rb', line 8

def run_command(cmd, opts={})
  cmd = build_command(cmd)
  cmd = add_pre_command(cmd)
  stdout = run_with_no_ruby_environment do
    `#{build_command(cmd)} 2>&1`
  end
  # In ruby 1.9, it is possible to use Open3.capture3, but not in 1.8
  #stdout, stderr, status = Open3.capture3(cmd)

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

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

#run_with_no_ruby_environment ⇒ Object 



26
27
28
29
30
31
32
33
34
 
# File 'lib/specinfra/backend/exec.rb', line 26

def run_with_no_ruby_environment
  keys = %w[BUNDLER_EDITOR BUNDLE_BIN_PATH BUNDLE_GEMFILE
    RUBYOPT GEM_HOME GEM_PATH GEM_CACHE]

  keys.each { |key| ENV["_SPECINFRA_#{key}"] = ENV[key] ; ENV.delete(key) }
  yield
ensure
  keys.each { |key| ENV[key] = ENV.delete("_SPECINFRA_#{key}") }
end