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Contents
module Brightbox
module Config
# The CLI config file is broken into sections, each with a unique name. When
# adding a new section as a conveinence if a name would clash instead of the
# original error we select a suitable alternative.
#
# If the name is not in use then it is returned unchanged.
#
class SectionNameDeduplicator
# @param [String] name The name to deduplicate
# @param [Array<String>] in_use The names already in use in the config
#
def initialize(name, in_use)
@name = name
@in_use = in_use
end
# Return the next name given those in use already
#
# @return [String]
def next
# Sanity check. If the name is not in use, offer it back
if @in_use.include?(@name)
@in_use.sort.select do |name|
name == @name
end
"#{normalised_name}_#{next_suffix}"
else
@name
end
end
private
# Returns name with no numerical suffix (_\d+)
def normalised_name
/(.*?)(_\d+)?\z/.match(@name).captures.first
end
# Find any names in use fitting the name_suffix pattern to determine which
# suffix values are in use
def related_names_in_use
@in_use.map { |n| /\A#{normalised_name}_(\d+)\z/.match(n) }.compact
end
# Find the largest number suffix used
def max_suffix_value
related_names_in_use.map { |match| match.captures.first.to_i }.max
end
# Find and increment the suffix
def next_suffix
if max_suffix_value.respond_to?(:next)
max_suffix_value.next
else
# If it's not a number then something is wrong
1
end
end
end
end
end
Version data entries
61 entries across 61 versions & 1 rubygems