Class: PortVCS::Utils

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

Class Method Summary collapse

Class Method Details

.config_load(conf, file, dirs) ⇒ Object

load config file immediately if it contains ‘/’ in its name, otherwise search through several dirs for it.

conf – a hash to merge result with

return a loaded filename or nil on error



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# File 'lib/portvcs/utils.rb', line 15

def self.config_load(conf, file, dirs)
  p = ->(f) {
    if File.readable?(f)
      begin
        myconf = YAML.load_file(f)
      rescue
        abort("cannot parse #{f}: #{$!}")
      end
      %w(host port user pass cvsroot ports_tree).each { |i|
        fail "missing or nil '#{i}' in #{f}" if ! myconf.key?(i.to_sym) || ! myconf[i.to_sym]
      }
      conf.merge!(myconf)
      return file
    end
    return nil
  }

  if file.index('/')
    return p.call(file)
  else
    dirs.each {|dir| return dir+'/'+file if p.call(dir + '/' + file) }
  end

  return nil
end

.gem_libdir ⇒ Object 



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# File 'lib/portvcs/utils.rb', line 73

def self.gem_libdir
  t = ["#{File.dirname(File.expand_path($0))}/../lib/#{PortVCS::Meta::NAME}",
       "#{Gem.dir}/gems/#{PortVCS::Meta::NAME}-#{PortVCS::Meta::VERSION}/lib/#{PortVCS::Meta::NAME}"]
  t.each {|i| return i if File.readable?(i) }
  fail "both paths are invalid: #{t}"
end

.in_path?(file) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/portvcs/utils.rb', line 80

def self.in_path?(file)
  return true if file =~ %r%\A/% and File.exist? file

  ENV['PATH'].split(File::PATH_SEPARATOR).any? do |path|
    File.exist? File.join(path, file)
  end
end

.port_extract_name(t, ptree) ⇒ Object

p – a string to examine ptree – a directory name with a local port tree, for example “/usr/ports”



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# File 'lib/portvcs/utils.rb', line 43

def self.port_extract_name(t, ptree)
  return nil if t.to_s == '' || (! t.index('/') && Dir.pwd !~ /^#{ptree}/)

  t.sub!(/#{ptree}(\/*)?/, '') if t =~ /^#{ptree}/
  return nil if t[0] == '/'

  # idempotent lambda
  inptree = ->() {
    if Dir.pwd =~ /^#{ptree}/
      l = (d = Dir.pwd.sub(/#{ptree}(\/*)?/, '')).split('/').length
      return File.split(d + '/' + t) if l >= 2 && l <= 3
    end
  }
  
  case t.split('/').length
  when 1
    return inptree.call
  when 2
    # assuming files/patch-aa in /usr/ports/www/firefox/files/
    return inptree.call if inptree.call
    # assuming www/firefox
    return [t]
  when 3..4
    # assuming www/firefox/Makefile
    return File.split(t)
  end

  return nil
end