Class: Themigrator::Migration

Inherits:
Object
  • Object
show all
Defined in:
lib/themigrator/migration.rb

Overview

Holds the plan of the migration

Constant Summary collapse

ACTIONS = 
%w(setup pre-migrate migrate cleanup rollback)
SCRIPTS = 
ACTIONS | %w(rollback)

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(dir) ⇒ Migration

Returns a new instance of Migration.



13
14
15
16
17
18
 
# File 'lib/themigrator/migration.rb', line 13

def initialize(dir)
  @dir = dir
  @action_and_roles = Hash.new{|hash,key| hash[key] = [] }
  @roles = []
  @actions = []
end

Instance Attribute Details

#actions ⇒ Object (readonly)

Returns the value of attribute actions.



11
12
13
 
# File 'lib/themigrator/migration.rb', line 11

def actions
  @actions
end

#roles ⇒ Object (readonly)

Returns the value of attribute roles.



11
12
13
 
# File 'lib/themigrator/migration.rb', line 11

def roles
  @roles
end

Instance Method Details

#analyze_project! ⇒ Object 



20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
 
# File 'lib/themigrator/migration.rb', line 20

def analyze_project!
  roles = Set.new
  used_actions = [] # Should be in order

  SCRIPTS.each do |action|
  path_match = File.join(@dir,"*/#{action}")
  Dir[path_match].select { |f|
    File.executable?(f)
  }.each {|f|
    role = File.basename(File.dirname(f))
    roles.add(role)
    used_actions << action
    @action_and_roles[action] << role

  }

  end
  @roles = roles.to_a.sort
  @actions = used_actions.uniq
  @actions.delete("rollback")
end

#roles_for_action(action) ⇒ Object 



42
43
44
 
# File 'lib/themigrator/migration.rb', line 42

def roles_for_action(action)
  @action_and_roles[action]
end