Class: Heroku::Command::Fork

Inherits:
Base
  • Object
show all
Defined in:
lib/heroku/command/fork.rb

Overview

clone an existing app

Instance Attribute Summary

Attributes inherited from Base

#args, #options

Instance Method Summary collapse

Methods inherited from Base

#api, #app, #heroku, #initialize, namespace

Methods included from Helpers

#action, #ask, #confirm, #confirm_billing, #confirm_command, #create_git_remote, #deprecate, #display, #display_header, #display_object, #display_row, #display_table, #error, error_with_failure, error_with_failure=, extended, extended_into, #fail, #format_bytes, #format_date, #format_error, #format_with_bang, #get_terminal_environment, #git, #has_git?, #home_directory, #host_name, #hprint, #hputs, included, included_into, #json_decode, #json_encode, #launchy, #line_formatter, #longest, #output_with_bang, #quantify, #redisplay, #retry_on_exception, #run_command, #running_on_a_mac?, #running_on_windows?, #set_buffer, #shell, #spinner, #status, #string_distance, #styled_array, #styled_error, #styled_hash, #styled_header, #suggestion, #time_ago, #truncate, #with_tty

Constructor Details

This class inherits a constructor from Heroku::Command::Base

Instance Method Details

#index ⇒ Object

fork [NEWNAME]

Fork an existing app – copy config vars and Heroku Postgres data, and re-provision add-ons to a new app. New app name should not be an existing app. The new app will be created as part of the forking process.

-s, –stack STACK # specify a stack for the new app –region REGION # specify a region



18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
 
# File 'lib/heroku/command/fork.rb', line 18

def index
  
  from = app
  to = shift_argument || "#{from}-#{(rand*1000).to_i}"

  from_info = api.get_app(from).body

  to_info = action("Creating fork #{to}") do
    api.post_app({
      :name   => to,
      :region => options[:region] || from_info["region"],
      :stack  => options[:stack] || from_info["stack"],
      :tier   => from_info["tier"] == "legacy" ? "production" : from_info["tier"]
    }).body
  end

  action("Copying slug") do
    job_location = cisaurus_client.copy_slug(from, to)
    loop do
      break if cisaurus_client.job_done?(job_location)
      sleep 1
    end
  end

  from_config = api.get_config_vars(from).body
  from_addons = api.get_addons(from).body

  from_addons.each do |addon|
    print "Adding #{addon["name"]}... "
    begin
      to_addon = api.post_addon(to, addon["name"]).body
      puts "done"
    rescue Heroku::API::Errors::RequestFailed => ex
      puts "skipped (%s)" % json_decode(ex.response.body)["error"]
    rescue Heroku::API::Errors::NotFound
      puts "skipped (not found)"
    end
    if addon["name"] =~ /^heroku-postgresql:/
      from_var_name = "#{addon["attachment_name"]}_URL"
      from_attachment = to_addon["message"].match(/Attached as (\w+)_URL\n/)[1]
      if from_config[from_var_name] == from_config["DATABASE_URL"]
        from_config["DATABASE_URL"] = api.get_config_vars(to).body["#{from_attachment}_URL"]
      end
      from_config.delete(from_var_name)

      plan = addon["name"].split(":").last
      unless %w(dev basic).include? plan
        wait_for_db to, to_addon
      end

      check_for_pgbackups! from
      check_for_pgbackups! to
      migrate_db addon, from, to_addon, to
    end
  end

  to_config = api.get_config_vars(to).body

  action("Copying config vars") do
    diff = from_config.inject({}) do |ax, (key, val)|
      ax[key] = val unless to_config[key]
      ax
    end
    api.put_config_vars to, diff
  end

  puts "Fork complete, view it at #{to_info['web_url']}"
end