cookbook-openstack-common/libraries/parse.rb

59 lines
1.9 KiB
Ruby

# encoding: UTF-8
#
# Cookbook Name:: openstack-common
# library:: parse
#
# Copyright 2013, Craig Tracey <craigtracey@gmail.com>
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Parse methods
module ::Openstack
# The current state of (at least some) OpenStack CLI tools do not provide a
# mechanism for outputting data in formats other than PrettyTable output.
# Therefore this function is intended to parse PrettyTable output into a
# usable array of hashes. Similarly, it will flatten Property/Value tables
# into a single element array.
# table - the raw PrettyTable output of the CLI command
# output - array of hashes representing the data.
def prettytable_to_array(table)
ret = []
return ret if table.nil?
indicies = []
table.split(/$/).map(&:strip).each do |line|
next if line.start_with?('+--') || line.empty?
cols = line.split('|').map(&:strip)
cols.shift
if indicies == []
indicies = cols
next
end
newobj = {}
cols.each { |val| newobj[indicies[newobj.length]] = val }
ret.push(newobj)
end
# this kinda sucks, but some prettytable data comes
# as Property Value pairs. If this is the case, then
# flatten it as expected.
newobj = {}
if indicies == ['Property', 'Value']
ret.each { |x| newobj[x['Property']] = x['Value'] }
[newobj]
else
ret
end
end
end