Class: Bling

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

Instance Method Summary collapse

Constructor Details

#initialize(bling_file = ".gems") ⇒ Bling

Returns a new instance of Bling.

Raises:

  • (ArgumentError) 


5
6
7
8
9
 
# File 'lib/bling/bling.rb', line 5

def initialize(bling_file = ".gems")
  raise ArgumentError, "bling file not found" unless File.exists?(bling_file)
  @yaml = YAML::load(ERB.new(File.read(bling_file)).result)
  
end

Instance Method Details

#gem_string(gem, version = nil) ⇒ Object 



18
19
20
21
22
23
24
 
# File 'lib/bling/bling.rb', line 18

def gem_string(gem, version = nil)
  if version
    gem.to_s + " [#{version}]"
  else
    gem.to_s
  end
end

#install_gems(env = nil) ⇒ Object 



36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
 
# File 'lib/bling/bling.rb', line 36

def install_gems(env = nil)
  only_if_present = lambda{|pre, val| val.to_s.empty? ? "" : " #{pre}#{val}"}
  gem_installed = false
  each_gem_for(env) do |entry|
    begin
      version = only_if_present.call('-v=', entry['version'].to_s.gsub(/[=~<>]/, ''))
      source = only_if_present.call('--source=', entry['source'])
      gem *([entry['name'], entry['version'].to_s].compact)
    rescue Gem::LoadError
      gem_installed = true
      $stdout.puts "installing #{entry['name']} #{version}"
      `gem install #{entry['name']} #{version} #{source} ` unless ENV['PRACTICE']
    end
  end
  $stdout.puts "nothing to install!" unless gem_installed
end

#list_gems(env = nil) ⇒ Object 



26
27
28
29
30
31
32
33
34
 
# File 'lib/bling/bling.rb', line 26

def list_gems(env = nil)
  lines = []
  self.each_gem_for(env) do |entry|
    line = gem_string(entry['name'], entry['version'])
    lines << line
    $stdout.puts line
  end
  lines
end

#require_env(env = nil) ⇒ Object 



11
12
13
14
15
16
 
# File 'lib/bling/bling.rb', line 11

def require_env(env = nil)
  self.each_gem_for(env) do |entry|
    gem *([entry['name'], entry['version']].compact)
    require entry['lib'] || entry['name']
  end
end