Class: Migrate::Conf

Inherits:
Object
  • Object
show all
Defined in:
lib/migrate/conf.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(root, file) ⇒ Conf

Returns a new instance of Conf.



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# File 'lib/migrate/conf.rb', line 7

def initialize(root, file)
  @root = root
  @file=file
  @file_path = "#{root}/#{file}"
  @loaded = false
end

Instance Attribute Details

#root ⇒ Object (readonly)

Returns the value of attribute root.



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# File 'lib/migrate/conf.rb', line 5

def root
  @root
end

Instance Method Details

#delete ⇒ Object 



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# File 'lib/migrate/conf.rb', line 54

def delete
  if File.exists? @file_path
    File.delete @file_path
  end
rescue Exception => e
  Log.error("Error while removing configuration file.", e)
  exit
end

#exists? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/migrate/conf.rb', line 14

def exists?
  File.exist? @file_path
end

#get_db ⇒ Object 



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# File 'lib/migrate/conf.rb', line 63

def get_db
  case @storage
  when "pg"
    if @pg == nil
      require_relative "./storage/postgres"
      @pg = Storage::Postgres.new(self)
    end

    @pg
  when "mysql"
    if @mysql == nil
      require_relative "./storage/mysql"
      @mysql = Storage::Mysql.new(self)
    end

    @mysql
  end
end

#get_lang ⇒ Object 



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# File 'lib/migrate/conf.rb', line 82

def get_lang
  case @lang
  when "sql"
    if @sql == nil
      @sql = Lang::Sql.new(get_db)
    end

    @sql
  when "javascript"
    if @javascript == nil
      @javascript = Lang::Javascript.new
    end

    @javascript
  when "ruby"
    if @ruby == nil
      @ruby = Lang::Ruby.new
    end

    @ruby
  when "go"
    if @go == nil
      @go = Lang::Go.new
    end

    @go
  when "python"
    if @python == nil
      @python = Lang::Python.new
    end

    @python
  end
end

#init(config) ⇒ Object 



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# File 'lib/migrate/conf.rb', line 18

def init(config)
  if not Dir.exist? @root
    Dir.mkdir @root
  end

  File.open(@file_path, "w") do |f|
    config.map do |key, value|
      f.puts "#{key}=#{value}\n"
    end
  end

  Log.success("Configuration file created. Location: `#{@file_path}`")
end

#load! ⇒ Object 



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# File 'lib/migrate/conf.rb', line 32

def load!
  Log.info("Loading configuration...")
  config = ParseConfig.new(@file_path)

  config.get_params.map do |param|
    value = nil
    env_var = config[param].match(/\$\{(.*)\}/)

    if env_var != nil
      value = ENV[env_var[1]]
    else
      value = config[param]
    end

    self.class.send(:attr_reader, param)
    instance_variable_set("@#{param}", value)
  end

  @loaded = true
  Log.success("Configuration loaded.")
end