Class: Divide::Extractor

Inherits:
Object
  • Object
show all
Defined in:
lib/divide/extractor.rb

Constant Summary collapse

DEFAULT_ENV = 
{ 'PORT' => '5000' }.merge(ENV)

Instance Method Summary collapse

Constructor Details

#initialize(flags = [], options = {}) ⇒ Extractor

Returns a new instance of Extractor.



7
8
9
10
11
12
13
14
 
# File 'lib/divide/extractor.rb', line 7

def initialize(flags = [], options = {})
  @flags = flags
  @options = options

  overwrite_env_variables
  overwrite_flags
  escape_double_quotes
end

Instance Method Details

#env_content ⇒ Object 



20
21
22
 
# File 'lib/divide/extractor.rb', line 20

def env_content
  @env_content ||= File.read("#{@options[:from]}/.env") rescue ''
end

#env_variables ⇒ Object 



46
47
48
49
50
51
52
53
54
 
# File 'lib/divide/extractor.rb', line 46

def env_variables
  @env_variables ||= begin
    env_content.split(/\n/).inject({}) do |memo, line|
      variable, value = line.split(/=/)
      next {} if variable == nil || variable.chars.first == '#'
      memo.merge variable => value
    end
  end
end

#escape_double_quotes ⇒ Object 



37
38
39
 
# File 'lib/divide/extractor.rb', line 37

def escape_double_quotes
  procfile_content.gsub!('"', '\"')
end

#extract_processes! ⇒ Object 



41
42
43
44
 
# File 'lib/divide/extractor.rb', line 41

def extract_processes!
  return nil if procfile_content.empty?
  YAML.load(procfile_content)
end

#overwrite_env_variables ⇒ Object 



56
57
58
59
60
 
# File 'lib/divide/extractor.rb', line 56

def overwrite_env_variables
  DEFAULT_ENV.merge(env_variables).each do |variable, value|
    procfile_content.gsub!("$#{variable}", value)
  end
end

#overwrite_flags ⇒ Object 



24
25
26
27
28
29
30
31
32
33
34
35
 
# File 'lib/divide/extractor.rb', line 24

def overwrite_flags
  @flags.each do |option|
    next if option.length < 2

    key = option[0]
    value = option[1]

    procfile_content.scan(/\s?#{key}\s(\S+)/).each do |value_to_overwrite|
      procfile_content.gsub!(value_to_overwrite[0], value)
    end
  end
end

#procfile_content ⇒ Object 



16
17
18
 
# File 'lib/divide/extractor.rb', line 16

def procfile_content
  @procfile_content ||= File.read("#{@options[:from]}/Procfile") rescue ''
end