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#
# Author:: Daniel DeLeo (<dan@chef.io>)
# Copyright:: Copyright 2011-2016, Chef Software, Inc.
# License:: Apache License, Version 2.0
#
# 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.
#
class Chef
class Knife
module Core
class TextFormatter
attr_reader :data
attr_reader :ui
def initialize(data, ui)
@ui = ui
@data = if data.respond_to?(:display_hash)
data.display_hash
elsif data.kind_of?(Array)
data
elsif data.respond_to?(:to_hash)
data.to_hash
else
data
end
end
def formatted_data
@formatted_data ||= text_format(data)
end
def text_format(data)
buffer = ""
if data.respond_to?(:keys)
justify_width = data.keys.map {|k| k.to_s.size }.max.to_i + 1
data.sort.each do |key, value|
# key: ['value'] should be printed as key: value
if value.kind_of?(Array) && value.size == 1 && is_singleton(value[0])
value = value[0]
end
if is_singleton(value)
# Strings are printed as key: value.
justified_key = ui.color("#{key}:".ljust(justify_width), :cyan)
buffer << "#{justified_key} #{value}\n"
else
# Arrays and hashes get indented on their own lines.
buffer << ui.color("#{key}:\n", :cyan)
lines = text_format(value).split("\n")
lines.each { |line| buffer << " #{line}\n" }
end
end
elsif data.kind_of?(Array)
data.each_index do |index|
item = data[index]
buffer << text_format(data[index])
# Separate items with newlines if it's an array of hashes or an
# array of arrays
buffer << "\n" if !is_singleton(data[index]) && index != data.size-1
end
else
buffer << "#{data}\n"
end
buffer
end
def is_singleton(value)
!(value.kind_of?(Array) || value.respond_to?(:keys))
end
end
end
end
end
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