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Contents
require 'abbrev'
require 'pathname'
module Rake::Funnel::Extensions
module CommonPath
def common_path
list = self
.to_a
.compact
.map { |x| components(x) }
min = list.min_by { |x| x.length }
matches = list.map do |path|
longest_prefix = []
path.zip(min).each do |left, right|
if left != right
next
end
longest_prefix << right
end
File.join(longest_prefix)
end
matches.min_by { |x| x.length } || ''
end
private
def components(path)
paths = []
Pathname.new(path).descend do |p|
paths << p
end
paths.inject([]) { |components, path|
relative = path.relative_path_from(components.last[:absolute]) if components.any?
components << { absolute: path, relative: relative || path }
}.map { |component| component[:relative].to_s }
end
end
end
class Array
include Rake::Funnel::Extensions::CommonPath
end
class Rake::FileList
include Rake::Funnel::Extensions::CommonPath
end
Version data entries
11 entries across 11 versions & 1 rubygems