Class: MRunEnv::SSHAgent

Inherits:
Object
  • Object
show all
Defined in:
ext/lib/CompLearnLib/RunEnv.rb

Class Method Summary collapse

Class Method Details

.checkHost(hostname) ⇒ Object 



105
106
107
108
109
110
 
# File 'ext/lib/CompLearnLib/RunEnv.rb', line 105

def SSHAgent.checkHost(hostname)
  puts "Checking #{hostname}"
  result = `unset DISPLAY ; setsid ssh #{hostname} hostname -s`
  result.gsub!(/\s/,'')
  hostname == result
end

.helperHosts ⇒ Object 



126
127
128
 
# File 'ext/lib/CompLearnLib/RunEnv.rb', line 126

def SSHAgent.helperHosts()
  CLConfig.getDefaultConfig().hosts[1..-1]
end

.isRunning? ⇒ Boolean

Returns:

  • (Boolean) 


102
103
104
 
# File 'ext/lib/CompLearnLib/RunEnv.rb', line 102

def SSHAgent.isRunning?()
  SSHAgent.checkHost(SSHAgent.primaryHost)
end

.liveHosts ⇒ Object 



129
130
131
132
133
134
135
136
137
 
# File 'ext/lib/CompLearnLib/RunEnv.rb', line 129

def SSHAgent.liveHosts()
  unless SSHAgent.isRunning?
    puts "Sorry, you forgot to start ssh-agent or run ssh-add"
    exit(1)
  end
  alive = [ ]
  SSHAgent.helperHosts.each { |h| alive << h if SSHAgent.checkHost(h) }
  alive
end

.primaryHost ⇒ Object 



111
112
113
 
# File 'ext/lib/CompLearnLib/RunEnv.rb', line 111

def SSHAgent.primaryHost()
  CLConfig.getDefaultConfig().hosts[0]
end

.runAt(cmd, h) ⇒ Object 



114
115
116
117
118
119
120
 
# File 'ext/lib/CompLearnLib/RunEnv.rb', line 114

def SSHAgent.runAt(cmd, h)
  if (h == 'dorado')
    puts "Skipping running #{cmd} on dorado"
  else
    `unset DISPLAY ; setsid ssh #{h} #{cmd}`
  end
end

.runEverywhere(cmd) ⇒ Object 



121
122
123
124
125
 
# File 'ext/lib/CompLearnLib/RunEnv.rb', line 121

def SSHAgent.runEverywhere(cmd)
  [SSHAgent.primaryHost(), SSHAgent.helperHosts()].flatten.each { |h|
    SSHAgent.runAt(cmd, h)
  }
end

.writeGoodHostFile ⇒ Object

returns filename of new hosts file



138
139
140
141
142
143
144
145
146
147
 
# File 'ext/lib/CompLearnLib/RunEnv.rb', line 138

def SSHAgent.writeGoodHostFile()  # returns filename of new hosts file
  cfg = CLConfig.getDefaultConfig
  fname = RunEnv.getTemporaryFilename()
  f = File.open(fname, "wb")
  cfg.hosts.each { |h|
    f.write("#{h}\n")
  }
  f.close
  fname
end