Display table with all gems in a bundle, each with ie. summary and description, render in markdown table

bundle_gems_overview_table

require "rubygems"
require "bundler"

dia = '/var/www/vhosts/diaspora'
Dir.chdir dia

def allm obj
  obj.methods.sort.each { |m|
    puts m
  }
end


class MarkdownTable
  def initialize(headers, data, cellwidths)
    @headers = headers
    @data = data
    @cellwidths = cellwidths
  end

  def render_header
    hline = []
    hline2 = []
    for i in 0..@headers.length-1 do
      hline.push @headers[i].ljust(@cellwidths[i])
      hline2.push '-'*@cellwidths[i]
    end
    puts hline.join(' | ')
    puts hline2.join(' | ')
  end

  def render_body
    for line in @data
      puts line.join('|')
    end
  end

  def render
    render_header
    render_body
  end
end



def readgems
  data = []

  Bundler.rubygems.all_specs.each { |spec|
    line = [
      spec.spec_name.to_s,
      spec.summary.to_s,
    ]
    desc = spec.description.to_s[0..100].gsub("\n"," - ")
    line.push  "#{desc}"
    data.push line
  }

  headers = ['Name', 'Summary', 'Description']
  cellwidths = [ 10, 20, 80]
  t = MarkdownTable.new(headers, data, cellwidths)
  t.render
end

readgems