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Viewing changes to lib/vmc/micro.rb

  • Committer: Michael Terry
  • Date: 2012-06-14 17:21:18 UTC
  • mfrom: (5.1.1 ruby-vmc)
  • Revision ID: michael.terry@canonical.com-20120614172118-8m3f2k7ugyki6sir
https://launchpad.net/bugs/998111
New upstream release (LP: #998111).

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lib/vmc/micro.rb
 
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require 'find'
 
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module VMC::Micro
 
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  def config_file(file)
 
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    File.join(File.dirname(__FILE__), '..', '..', 'config', 'micro', file)
 
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  end
 
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  def escape_path(path)
 
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    path = File.expand_path(path)
 
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    if RUBY_PLATFORM =~ /mingw|mswin32|cygwin/
 
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      if path.include?(' ')
 
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        return '"' + path + '"'
 
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      else
 
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        return path
 
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      end
 
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    else
 
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      return path.gsub(' ', '\ ')
 
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    end
 
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  end
 
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  def locate_file(file, directory, search_paths)
 
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    search_paths.each do |path|
 
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      expanded_path = File.expand_path(path)
 
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      if File.exists?(expanded_path)
 
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        Find.find(expanded_path) do |current|
 
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          if File.directory?(current) && current.include?(directory)
 
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            full_path = File.join(current, file)
 
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            return self.escape_path(full_path) if File.exists?(full_path)
 
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          end
 
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        end
 
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      end
 
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    end
 
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    false
 
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  end
 
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  def run_command(command, args=nil)
 
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    # TODO switch to using posix-spawn instead
 
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    result = %x{#{command} #{args} 2>&1}
 
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    unless $?.exitstatus == 0
 
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      if block_given?
 
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        yield
 
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      else
 
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        raise "failed to execute #{command} #{args}:\n#{result}"
 
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      end
 
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    else
 
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      result.split(/\n/)
 
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    end
 
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  end
 
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  module_function :config_file
 
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  module_function :escape_path
 
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  module_function :locate_file
 
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  module_function :run_command
 
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end