module ImageOptimizer::Shell::ClassMethods
Public Instance Methods
run_command(command)
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# File lib/image_optimizer/shell.rb, line 30 def run_command(command) `#{command}` end
which(cmd)
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Cross-platform way of finding an executable in the $PATH.
# File lib/image_optimizer/shell.rb, line 19 def which(cmd) exts = ENV['PATHEXT'] ? ENV['PATHEXT'].split(';') : [''] ENV['PATH'].split(File::PATH_SEPARATOR).each do |path| exts.each do |ext| exe = File.join(path, "#{cmd}#{ext}") return exe if File.executable? exe end end nil end