Module: GoodData::Bam::Utils

Defined in:
lib/utils/utils.rb

Constant Summary collapse

PROJECT_GRAPHS_DIR = 
"graphs"
PROJECT_METADATA_DIR = 
"metadata"
PROJECT_DATA_DIR = 
"data"
PARAM_FILE = 
'params.json'

Class Method Summary collapse

Class Method Details

.get_paths(base) ⇒ Object 



10
11
12
13
14
15
16
17
18
 
# File 'lib/utils/utils.rb', line 10

def self.get_paths(base)
	base = Pathname(base)
				{
:home_path => base,
:graphs_path => base + PROJECT_GRAPHS_DIR,
:metadata_path => base + PROJECT_METADATA_DIR,
:data_path => base + PROJECT_DATA_DIR
				}
end

.get_user_params(base) ⇒ Object 



20
21
22
23
24
25
 
# File 'lib/utils/utils.rb', line 20

def self.get_user_params(base)
	base = Pathname(base)
	param_path = base + PARAM_FILE
	params = File.exist?(param_path) ? JSON.parse(File.read(param_path), :symbolize_names => true) : {}
	{:additional_params => {}}.merge(params)
end

.merge_only_values(merge_onto, data, keys = []) ⇒ Object 



64
65
66
67
68
69
70
71
 
# File 'lib/utils/utils.rb', line 64

def self.merge_only_values(merge_onto, data, keys=[])
  filtered_data = data.inject({}) {|memo, k| memo[k.first] = k[1] unless k[0].blank?; memo}
  if keys.empty?
    merge_onto.merge(filtered_data)
  else
    merge_onto.merge(filtered_data.select {|key, val| keys.include?(key)})
  end
end

.render_template(template, params, options = {}) ⇒ Object 



27
28
29
30
31
32
33
34
35
36
37
 
# File 'lib/utils/utils.rb', line 27

def self.render_template(template, params, options={})
  to_file = options[:to_file]
  root = options[:root] || GoodData::Bam::TEMPLATE_ROOT
  t = Pathname(template)
  output = Erubis::Eruby.new(File.read(root + t)).result(params)
  if to_file.nil?
    output
  else
    File.open(to_file, 'w') {|f| f.write(output)}
  end
end

.setup_basic_project(paths, options = {}) ⇒ Object 



39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
 
# File 'lib/utils/utils.rb', line 39

def self.setup_basic_project(paths, options={})
   [:project_name, :project_pid].each do |param|
     fail "Project #{param} needs to be specified for project template to be generated" if options[param].blank?	
   end
  
  home = paths[:home_path]

  paths.values_at(:home_path, :graphs_path, :metadata_path, :data_path).each do |dir|
    FileUtils::mkdir_p dir
  end
  File.open(home + 'params.prm', 'w') do |f|
     f << "TRASH=0\n"
   end
  Utils::render_template("project.erb", options, :to_file => home + '.project')
  Utils::render_template("workspace.prm.erb", options, :to_file => home + 'workspace.prm')
end

.should_backup_to_s3?(params) ⇒ Boolean

Returns:

  • (Boolean) 


56
57
58
59
60
61
62
 
# File 'lib/utils/utils.rb', line 56

def self.should_backup_to_s3?(params)
  keys = [:S3_SECRET_ACCESS_KEY, :S3_ACCESS_KEY_ID, :S3_BUCKETNAME]
  if keys.any? {|key| params[:additional_params].has_key?(key) && params[:additional_params][key].blank?}
    fail "You still have unfilled keys :S3_SECRET_ACCESS_KEY or :S3_ACCESS_KEY_ID or :S3_BUCKETNAME. Fill them in or delete them explicitely. If you do that your data will not be backed up."
  end
  keys.all? {|key| !params[:additional_params][key].blank?}
end