Class: Rake::Application::KeySpace

Inherits:
Object
  • Object
show all
Defined in:
lib/rake/pro/keystore.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ KeySpace

Returns a new instance of KeySpace.



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# File 'lib/rake/pro/keystore.rb', line 13

def initialize
  @cfg_files = []
  @kvp_stack = []
  @kvp = {}
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/rake/pro/keystore.rb', line 19

def [](key)
  @kvp[key]
end

#after_invoke(task_details) ⇒ Object 



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# File 'lib/rake/pro/keystore.rb', line 128

def after_invoke task_details
  task_name = task_details[0]
  parts = task_name.split(':')
  if parts.length > 1
    pop_scope
    pop_cfg
  end
end

#before_invoke(task_details) ⇒ Object 



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# File 'lib/rake/pro/keystore.rb', line 86

def before_invoke task_details
  task_name = task_details[0]
  parts = task_name.split(':')
  push_scope(parts[0].to_sym) if parts.length == 1

  load_paths = parts.reduce([
      rpath(root, 'cfg.yml'),
      rpath(root, '.cfg.yml'),
      rpath(root, '.cfg-private.yml')
    ]) { |paths, folder|
    paths.push(rpath(root, folder, 'cfg.yml'))
    paths.push(rpath(root, folder, '.cfg.yml'))
    paths.push(rpath(root, folder, '.cfg-private.yml'))
    paths
  }
  load_paths.push(rpath(home, '.cyborg.yml'))

  load_paths.each { |path|
    load_once(path)
  }

  # promote and prune the key space
  pruned = false
  pruned_stack = []
  @kvp_stack.each_with_index { |kvp, index| 
    @scopes.each_with_index { |scope, i2|
      kvp, didprune = kvp.promote_key(scope)
      siblings = scope_siblings(scope)
      kvp = kvp.prune_keys(scope_siblings(scope)) if siblings
      pruned |= (didprune && scope == task_name.to_sym)
    }
    pruned_stack.push(kvp)
  }

  # merge the kvp stack entries into a single map
  @kvp = pruned_stack.reduce({}) { |acc, kvp|
    acc.recursive_merge(kvp)
  }

  [task_name, pruned]
end

#home ⇒ Object 



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# File 'lib/rake/pro/keystore.rb', line 27

def home()
  Etc.getpwuid.dir;
end

#load_once(cfg_file) ⇒ Object 



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# File 'lib/rake/pro/keystore.rb', line 68

def load_once(cfg_file)
  unless @cfg_files.include?(cfg_file)
    if (File.file?(cfg_file))
      Rake.application.active_dir = File.dirname(cfg_file)
      push_cfg(cfg_file)
    end
    @cfg_files.push(cfg_file)
  end
end

#pop_cfg ⇒ Object 



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# File 'lib/rake/pro/keystore.rb', line 64

def pop_cfg
  @kvp_stack.pop
end

#pop_scope ⇒ Object 



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# File 'lib/rake/pro/keystore.rb', line 43

def pop_scope
  @scopes.pop
end

#push_cfg(cfg_file) ⇒ Object 



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# File 'lib/rake/pro/keystore.rb', line 47

def push_cfg cfg_file
  #puts "Loading cfg file:  #{cfg_file}..."
  cfg = YAML.load_file(cfg_file).symbolize_keys
  source = if (cfg.has_key?(:default))
              cfg[:default]
            elsif (cfg.has_key?(:source))
              cfg[:source]
            elsif (cfg.has_key?(:system))
              cfg[:system]
            elsif(cfg.has_key?(:target))
              cfg[:target]
            end

  push_scope(source.to_sym) if source
  @kvp_stack.push(cfg)
end

#push_scope(scope) ⇒ Object 



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# File 'lib/rake/pro/keystore.rb', line 39

def push_scope scope
  (@scopes ||= []).push(scope)
end

#root ⇒ Object 



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# File 'lib/rake/pro/keystore.rb', line 31

def root()
  Rake.original_dir
end

#rpath(*paths) ⇒ Object 



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# File 'lib/rake/pro/keystore.rb', line 35

def rpath(*paths)
  return File.join(paths)
end

#scope_siblings(scope) ⇒ Object 



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# File 'lib/rake/pro/keystore.rb', line 78

def scope_siblings scope
  siblings = nil
  Rake.application.scopes.each { |scope_set|
    siblings = scope_set if scope_set.include?(scope)
  }
  siblings
end

#values ⇒ Object 



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# File 'lib/rake/pro/keystore.rb', line 23

def values()
  @kvp
end