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Contents
require 'abbrev'
require 'pathname'
module Rake
module Funnel
module Extensions
module CommonPath
def common_path
list = to_a
.compact
.map { |x| components(x) }
min = list.min_by(&:length)
matches = find_matches(list, min)
matches.min_by(&:length) || ''
end
private
def components(path)
paths = []
Pathname.new(path).descend do |p|
paths << p
end
paths = paths.inject([]) { |components, p|
relative = p.relative_path_from(components.last[:absolute]) if components.any?
components << { absolute: p, relative: relative || p }
}
paths.map { |component| component[:relative].to_s }
end
def find_matches(list, min)
list.map do |path|
longest_prefix = []
path.zip(min).each do |left, right|
next if left != right
longest_prefix << right
end
File.join(longest_prefix)
end
end
end
end
end
end
class Array
include Rake::Funnel::Extensions::CommonPath
end
module Rake
class FileList
include Rake::Funnel::Extensions::CommonPath
end
end
Version data entries
18 entries across 18 versions & 1 rubygems