Module: Synchrotron

Defined in:
lib/synchrotron/scanner.rb,
lib/synchrotron.rb,
lib/synchrotron/ignore.rb,
lib/synchrotron/logger.rb,
lib/synchrotron/stream.rb,
lib/synchrotron/version.rb

Overview

Not currently used.

Defined Under Namespace

Classes: Ignore, Logger, Scanner, Stream

Constant Summary collapse

APP_NAME = 
'Synchrotron'
APP_VERSION = 
'0.0.1'
APP_AUTHOR = 
'Ryan Grove'
APP_EMAIL = 
'[email protected]'
APP_URL = 
'http://github.com/rgrove/synchrotron/'
'Copyright (c) 2009 Ryan Grove <[email protected]>. All ' <<
'rights reserved.'

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/synchrotron.rb', line 18

def config
  @config
end

.ignore ⇒ Object (readonly)

Returns the value of attribute ignore.



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# File 'lib/synchrotron.rb', line 18

def ignore
  @ignore
end

.log ⇒ Object (readonly)

Returns the value of attribute log.



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# File 'lib/synchrotron.rb', line 18

def log
  @log
end

.scanner ⇒ Object (readonly)

Returns the value of attribute scanner.



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# File 'lib/synchrotron.rb', line 18

def scanner
  @scanner
end

Class Method Details

.coalesce_changes(changes) ⇒ Object 



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# File 'lib/synchrotron.rb', line 69

def coalesce_changes(changes)
  coalesced = {}

  changes.each do |path|
    next if coalesced.include?(path)

    pn = Pathname.new(path)

    coalesced[pn.to_s] = true unless catch :matched do
      pn.descend {|p| throw(:matched, true) if coalesced.include?(p.to_s) }
      false
    end
  end

  coalesced.keys.sort
end

.init(config = {}) ⇒ Object 



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# File 'lib/synchrotron.rb', line 20

def init(config = {})
  @config = {
    :dry_run      => false,
    :exclude      => [],
    :exclude_from => [],
    :local_path   => File.expand_path('.'),
    :remote_path  => nil,

    :rsync_options => [
      '--compress',
      '--human-readable',
      '--links',
      '--recursive',
      '--times',
      '--verbose'
    ],

    :rsync_path => '/usr/bin/rsync',
    :verbosity  => :info
  }.merge(config)

  @log       = Logger.new(@config[:verbosity])
  @ignore    = Ignore.new(@config[:exclude])
  @regex_rel = Regexp.new("^#{Regexp.escape(@config[:local_path].chomp('/'))}/?")

  @config[:rsync_options] << '--dry-run' if @config[:dry_run]

  local_exclude_file = File.join(@config[:local_path], '.synchrotron-exclude')
  @config[:exclude_from] << local_exclude_file if File.exist?(local_exclude_file)
  @config[:exclude_from].each {|filename| @ignore.add_file(filename) }

  @callback = proc do |stream, context, event_count, paths, marks, event_ids|
    changed = Set.new
    paths.regard_as('*')
    event_count.times {|i| changed.add(paths[i]) unless @ignore.match(paths[i]) }

    changed = coalesce_changes(changed)
    return if changed.empty?

    @log.info "Change detected"
    changed.each {|path| sync(path) }
  end

  @stream  = Stream.new(config[:local_path], @callback)

  @log.info "Local path : #{@config[:local_path]}"
  @log.info "Remote path: #{@config[:remote_path]}"
end

.monitor ⇒ Object 



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# File 'lib/synchrotron.rb', line 86

def monitor
  @log.info "Watching for changes"
  @stream.start

  begin
    OSX.CFRunLoopRun()
  rescue Interrupt
    @stream.release
  end
end

.relative_path(path) ⇒ Object 



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# File 'lib/synchrotron.rb', line 97

def relative_path(path)
  path.sub(@regex_rel, '')
end

.sync(path = ) ⇒ Object 



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# File 'lib/synchrotron.rb', line 101

def sync(path = @config[:local_path])
  rsync_local   = escape_arg(path)
  rsync_options = @config[:rsync_options].join(' ')
  rsync_remote  = escape_arg(File.join(@config[:remote_path], relative_path(path)))

  # Build exclusion list.
  @config[:exclude].each {|p| rsync_options << " --exclude #{escape_arg(p)}" }
  @config[:exclude_from].each {|f| rsync_options << " --exclude-from #{escape_arg(f)}"}

  puts `#{@config[:rsync_path]} #{rsync_options} #{rsync_local} #{rsync_remote}`
  puts
end