How to calculate how many people have reviewed for JOSS

joss-reviewers.rb

### Find all the published reviewers
papers = Paper.visible
reviewers = []

papers.each { |p| reviewers << p.reviewers.each(&:downcase!) }

### Unique reviewers (922)
puts reviewers.flatten.uniq.count

### Find the highest reviewer counts
reviewer_counts = Hash.new(0)

reviewers.flatten.each do |reviewer_instance|
  if reviewer_counts.has_key?(reviewer_instance)
    reviewer_counts[reviewer_instance] += 1
  else
    reviewer_counts[reviewer_instance] = 1
  end
end

sorted = reviewer_counts.sort_by { |_key,value| value }.reverse.to_h

reviewer_table = File.open("reviewers.md", 'w')
reviewer_table.puts "| Handle | Count |"
reviewer_table.puts "|---|---|"

sorted.take(50).to_h.each do |reviewer, count|
  next if reviewer == "@arfon" || "@kevin-mattheus-moerman" || "@kyleniemeyer" || "@danielskatz"
  reviewer_table.puts "| #{reviewer} | #{count} |"
end

reviewer_table.close

reviewers.md

Handle	Count
@luizirber	13
@amoeba	13
@nicoguaro	13
@haozeke	12
@mattpitkin	11
@sara-02	11
@rougier	10
@corybrunson	10
@chilipp	9
@djmitche	9
@ziotom78	9
@nhejazi	9
@fil	9
@brainstorm	8
@trallard	8
@jsgalan	8
@strengejacke	8
@acolum	8
@janfreyberg	8
@mkhorton	8
@chennachaos	8
@krother	7
@zhampel	7
@dvalters	7
@ejhigson	7
@benmarwick	7
@tacaswell	7
@kellieotto	7
@stuartcampbell	7
@gonsie	7
@ixjlyons	7
@soodoku	7
@ahwillia	7
@tomfaulkenberry	7
@vsoch	6
@iljah	6
@hugoledoux	6
@grlee77	6
@mnarayan	6
@jonathanreardon	6
@adi3	6
@sirsharpest	6
@kthyng	6
@nnadeau	6
@brunaw	6
@zingale	6