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caged/coaches.rb

Last active May 7, 2016 05:13
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coaches.rb
#!/usr/bin/env ruby
require 'csv'
coach_years=CSV.read('coaches2.csv')[1..-1]
stints = coach_years.sort_by(&:reverse).each_with_object([]) do |coach_year, coach_stints|
season, coach = coach_year
start_year = season.split('-')[0].to_i
end_year = start_year + 1
last_stint = coach_stints.last
if [coach, start_year] == last_stint&.fetch_values(:coach, :end_year)
last_stint[:end_year] = end_year
else
coach_stints << { coach: coach, start_year: start_year, end_year: end_year }
end
end
stints.sort_by!{|s| [s[:start_year], s[:end_year]]}
puts stints
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