dt

#!/usr/bin/env ruby

def last_line
  `wc -l db/schema.rb`.to_i
end

table_lines = `grep create_table db/schema.rb -n`.split("\n").map{|l| l.gsub(/\:.*/, '').to_i}
term = ARGV[0]

table_starts = `grep "create_table.*#{term}" db/schema.rb -n`.split("\n")

table_starts.each do |ts|
  table_info = ts.match(/(\d*):  create_table "([^"]*)"/)
  start_line = table_info[1].to_i
  table_name = table_info[2]
  end_line=(table_lines.select{|l| l > start_line}.min || last_line)- 3

  puts "\n\n\n ====== [ #{table_name} ] ============================="
  puts `head db/schema.rb -n #{end_line} | tail -n #{end_line - start_line}`
end

puts
puts

usage

jw@logopolis:/projects/client_name/project_name $ script/dt user



 ====== [ users ] =============================
    t.string   "email",               default: "", null: false
    t.string   "password_digest",                               collation: "utf8mb4_unicode_ci"
    t.string   "persistence_token",                             collation: "utf8mb4_unicode_ci"
    t.string   "perishable_token",                              collation: "utf8mb4_unicode_ci"
    t.string   "single_access_token",                           collation: "utf8mb4_unicode_ci"
    t.integer  "login_count",         default: 0
    t.datetime "last_request_at"
    t.datetime "created_at"
    t.datetime "updated_at"
    t.index ["email"], name: "index_users_on_email", unique: true, using: :btree

use_case

jw@logopolis:/projects/client_name/project_name $ script/dt user



 ====== [ users ] =============================
    t.string   "email",               default: "", null: false
    t.string   "password_digest",                               collation: "utf8mb4_unicode_ci"
    t.string   "persistence_token",                             collation: "utf8mb4_unicode_ci"
    t.string   "perishable_token",                              collation: "utf8mb4_unicode_ci"
    t.string   "single_access_token",                           collation: "utf8mb4_unicode_ci"
    t.integer  "login_count",         default: 0
    t.datetime "last_request_at"
    t.datetime "created_at"
    t.datetime "updated_at"
    t.index ["email"], name: "index_users_on_email", unique: true, using: :btree