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require 'command_line_reporter'
module LeapCli; module Commands
desc 'List nodes and their classifications'
long_desc 'Prints out a listing of nodes, services, or tags. ' +
'The node-filter can be a list of names of nodes, services, or tags. ' +
'If the name is prefixed with +, this acts like an AND condition. ' +
"For example:\n\n" +
" * node1 node2 -> matches all nodes named \"node1\" OR \"node2\"\n\n" +
" * openvpn +local -> matches all nodes with service \"openvpn\" AND tag \"local\""
arg_name '[node-filter]', :optional => true
command :list do |c|
c.flag 'print', :desc => 'What attributes to print (optional)'
c.action do |global_options,options,args|
puts
if options['print']
print_node_properties(manager.filter(args), options['print'])
else
if args.any?
NodeTable.new(manager.filter(args)).run
else
TagTable.new('SERVICES', manager.services).run
TagTable.new('TAGS', manager.tags).run
NodeTable.new(manager.nodes).run
end
end
end
end
private
def self.print_node_properties(nodes, properties)
node_list = manager.nodes
properties = properties.split(',')
max_width = nodes.keys.inject(0) {|max,i| [i.size,max].max}
nodes.each_node do |node|
node.evaluate
value = properties.collect{|prop| node[prop]}.join(', ')
printf("%#{max_width}s %s\n", node.name, value)
end
puts
end
class TagTable
include CommandLineReporter
def initialize(heading, tag_list)
@heading = heading
@tag_list = tag_list
end
def run
tags = @tag_list.keys.sort
max_width = [20, (tags+[@heading]).inject(0) {|max,i| [i.size,max].max}].max
table :border => false do
row :header => true, :color => 'cyan' do
column @heading, :align => 'right', :width => max_width
column "NODES", :width => HighLine::SystemExtensions.terminal_size.first - max_width - 2, :padding => 2
end
tags.each do |tag|
row do
column tag
column @tag_list[tag].node_list.keys.sort.join(', ')
end
end
end
vertical_spacing
end
end
#
# might be handy: HighLine::SystemExtensions.terminal_size.first
#
class NodeTable
include CommandLineReporter
def initialize(node_list)
@node_list = node_list
end
def run
rows = @node_list.keys.sort.collect do |node_name|
[node_name, @node_list[node_name].services.sort.join(', '), @node_list[node_name].tags.sort.join(', ')]
end
unless rows.any?
puts Paint["no results", :red]
puts
return
end
padding = 2
max_node_width = [20, (rows.map{|i|i[0]} + ["NODES"] ).inject(0) {|max,i| [i.size,max].max}].max
max_service_width = (rows.map{|i|i[1]} + ["SERVICES"]).inject(0) {|max,i| [i.size+padding+padding,max].max}
max_tag_width = (rows.map{|i|i[2]} + ["TAGS"] ).inject(0) {|max,i| [i.size,max].max}
table :border => false do
row :header => true, :color => 'cyan' do
column "NODES", :align => 'right', :width => max_node_width
column "SERVICES", :width => max_service_width, :padding => 2
column "TAGS", :width => max_tag_width
end
rows.each do |r|
row do
column r[0]
column r[1]
column r[2]
end
end
end
vertical_spacing
end
end
end; end
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