convert adb content query output to json

adbquery.rb

#!/usr/bin/env ruby

require 'json'

results = `adb shell content query #{ARGV.join(' ')}`

lines = results.split("\n")
rows = lines.map do |line|
  match = line.match(/Row: \d+ (.*)/)
  next unless match

  args = match[1].split(", ").map{|a| a.split("=")}.map {|arg| [arg.first, arg.last == "NULL" ? nil : arg.last]}.to_h
end.compact

puts rows.to_json