Method: Maid::Tools#sync

Defined in:
lib/maid/tools.rb

#sync(from, to, options = {}) ⇒ Object

Simple sync two files/folders using rsync.

The host OS must provide rsync. See the rsync man page for a detailed description.

man rsync

Options

:delete => boolean :verbose => boolean :archive => boolean (default true) :update => boolean (default true) :exclude => string :prune_empty => boolean

Examples

Syncing a directory to a backup:

sync('~/music', '/backup/music')

Excluding a path:

sync('~/code', '/backup/code', :exclude => '.git')

Excluding multiple paths:

sync('~/code', '/backup/code', :exclude => ['.git', '.rvmrc'])



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# File 'lib/maid/tools.rb', line 607

def sync(from, to, options = {})
  # expand removes trailing slash
  # cannot use str[-1] due to ruby 1.8.7 restriction
  from = expand(from) + (from.end_with?('/') ? '/' : '')
  to = expand(to) + (to.end_with?('/') ? '/' : '')
  # default options
  options = { :archive => true, :update => true }.merge(options)
  ops = []
  ops << '-a' if options[:archive]
  ops << '-v' if options[:verbose]
  ops << '-u' if options[:update]
  ops << '-m' if options[:prune_empty]
  ops << '-n' if @file_options[:noop]

  Array(options[:exclude]).each do |path|
    ops << "--exclude=#{ sh_escape(path) }"
  end

  ops << '--delete' if options[:delete]
  stdout = cmd("rsync #{ ops.join(' ') } #{ sh_escape(from) } #{ sh_escape(to) } 2>&1")
  log("Fired sync from #{ sh_escape(from) } to #{ sh_escape(to) }.  STDOUT:\n\n#{ stdout }")
end