Class: Fission::Command::SnapshotCreate

Inherits:
Fission::Command show all
Defined in:
lib/fission.old/command/snapshot_create.rb

Instance Attribute Summary

Attributes inherited from Fission::Command

#args, #options

Instance Method Summary collapse

Methods inherited from Fission::Command

help

Constructor Details

#initialize(args = []) ⇒ SnapshotCreate

Returns a new instance of SnapshotCreate


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# File 'lib/fission.old/command/snapshot_create.rb', line 5

def initialize(args=[])
  super
end

Instance Method Details

#executeObject


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# File 'lib/fission.old/command/snapshot_create.rb', line 9

def execute
  unless @args.count == 2
    Fission.ui.output self.class.help
    Fission.ui.output ""
    Fission.ui.output_and_exit "Incorrect arguments for snapshot create command", 1
  end

  vm_name, snap_name = @args.take 2

  vm = Fission::VM.new vm_name
  unless vm.exists?
    Fission.ui.output_and_exit "Unable to find the VM #{vm_name} (#{Fission::VM.path(vm_name)})", 1 
  end

  unless vm.running?
    Fission.ui.output "VM '#{vm_name}' is not running"
    Fission.ui.output_and_exit 'A snapshot cannot be created unless the VM is running', 1
  end

  if vm.snapshots.include? snap_name
    Fission.ui.output_and_exit "VM '#{vm_name}' already has a snapshot named '#{snap_name}'", 1
  end

  Fission.ui.output "Creating snapshot"
  task = vm.create_snapshot(snap_name)

  if task.successful?
    Fission.ui.output "Snapshot '#{snap_name}' created"
  else
    Fission.ui.output_and_exit "There was an error creating the snapshot.  The error was:\n#{task.output}", task.code
  end
end

#option_parserObject


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# File 'lib/fission.old/command/snapshot_create.rb', line 42

def option_parser
  optparse = OptionParser.new do |opts|
    opts.banner = "\nsnapshot create: fission snapshot create my_vm snapshot_1"
  end

  optparse
end