Class: Gem::Micro::BinWrapperEmitter

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

Instance Method Summary collapse

Constructor Details

#initialize(gem_name, bin_name) ⇒ BinWrapperEmitter

Initializes a new BinWrapperEmitter with a gem_name and a bin_name.



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# File 'lib/microgem/bin_wrapper_emitter.rb', line 7

def initialize(gem_name, bin_name)
  @gem_name, @bin_name = gem_name, bin_name
end

Instance Method Details

#bin_wrapper_file ⇒ Object

Returns the full path to where the bin wrapper script should be created. If Ruby was installed with a prefix or suffix it will be inflected and added to the name of the executable.

If the prefix is, for instance, ‘mac’ an executable like macrake will be installed. With a suffix like ‘19’ the name will be rake19.



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# File 'lib/microgem/bin_wrapper_emitter.rb', line 17

def bin_wrapper_file
  rbconfig('ruby_install_name').match /^(.*)ruby(.*)$/
  File.join(Config.bin_dir, "#{$1}#{@bin_name}#{$2}")
end

#create_bin_wrapper! ⇒ Object

Creates the bin wrapper script in bin_wrapper_file.



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# File 'lib/microgem/bin_wrapper_emitter.rb', line 23

def create_bin_wrapper!
  Utils.log(:debug, "Creating bin wrapper `#{bin_wrapper_file}'")
  File.open(bin_wrapper_file, 'w') { |f| f << to_ruby }
  File.chmod(0755, bin_wrapper_file)
end

#to_ruby ⇒ Object

Returns a string representation of the bin wrapper file.



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# File 'lib/microgem/bin_wrapper_emitter.rb', line 30

def to_ruby
%{#!#{ File.join(rbconfig('bindir'), rbconfig('ruby_install_name')) }
#
# This file was generated by MicroGem (µgem).
#
# The application '#{@bin_name}' is installed as part of a gem, and
# this file is here to facilitate running it.

require 'rubygems'

version = "> 0"
if ARGV.first =~ /^_(.*)_$/ and Gem::Version.correct? $1 then
  version = $1
  ARGV.shift
end

gem '#{@gem_name}', version
load '#{@bin_name}'
}
end