Class: MasterView::AutoCopy

Inherits:
Object
  • Object
show all
Defined in:
lib/masterview/extras/auto_copy.rb

Overview

Usage: Can be used as an isolated instance by doing the following autocopy = AutoCopy.new(src_mio, dst_mio, [‘*.gif’, ‘*.png’]) pathnames_copied = autocopy.copy_updated_files

or

Register the the autocopy directories and patterns with AutoCopy and invoke to copy all AutoCopy.clear_registrations # clears out existing registrations AutoCopy.register(src_mio, dst_mio, [‘*.gif’, ‘*.png’]) AutoCopy.register(another_src_mio, another_dst_mio, [‘*.css’]) pathnames_copied = AutoCopy.copy_all_updated_files

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(source_mio_tree, dest_mio_tree, filename_patterns = ['*']) ⇒ AutoCopy

inialize an autocopy instance

source_mio_tree = tree where we are copying from dest_path = tree where we are copying to filename_patterns = array of glob style pattern of files to copy (defaults to [‘*’] all files and subdirectories) (see File.fnmatch)



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# File 'lib/masterview/extras/auto_copy.rb', line 23

def initialize(source_mio_tree, dest_mio_tree, filename_patterns = ['*'])
  @source_mio_tree = source_mio_tree
  @dest_mio_tree = dest_mio_tree
  @filename_patterns = filename_patterns
  @mtimes = {}
end

Class Method Details

.clear_registrations ⇒ Object

clear all registrations



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# File 'lib/masterview/extras/auto_copy.rb', line 58

def self.clear_registrations
  @@src_dst_registrations = []
end

.copy_all_updated_files ⇒ Object

perform autocopy on all registered src_dst’s returns array of paths that were copied



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# File 'lib/masterview/extras/auto_copy.rb', line 70

def self.copy_all_updated_files
  paths_copied = []
  self.registrations.each { |src_dst| paths_copied << src_dst.copy_updated_files }
  paths_copied.flatten
end

.register(source_mio_tree, dest_mio_tree, filename_patterns = ['*']) ⇒ Object

register a source, destination, and array of filename patterns with AutoCopy



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# File 'lib/masterview/extras/auto_copy.rb', line 52

def self.register(source_mio_tree, dest_mio_tree, filename_patterns = ['*'])
  @@src_dst_registrations ||= []
  @@src_dst_registrations << AutoCopy.new(source_mio_tree, dest_mio_tree, filename_patterns)
end

.registrations ⇒ Object

accessor for registrations



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# File 'lib/masterview/extras/auto_copy.rb', line 63

def self.registrations
  @@src_dst_registrations ||= []
  @@src_dst_registrations
end

Instance Method Details

#copy_updated_files ⇒ Object

Auto copy files like stylesheets, images, javascript from a source directory into the Rails runtime location (usually under public folder). Checks modified time to see if different than last check and if so then copies file. Returns array of paths that were copied



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# File 'lib/masterview/extras/auto_copy.rb', line 35

def copy_updated_files
  paths_copied = []
  @filename_patterns.each do |filename_pattern|
    @source_mio_tree.find(:pattern => filename_pattern) do |mio|
      mtime = mio.mtime
      unless @mtimes[mio.pathname.to_s] == mtime
        @dest_mio_tree.path(mio.pathname).write(mio.read)
        @mtimes[mio.pathname.to_s] = mtime
        paths_copied << mio.pathname.to_s
      end
    end
  end
  paths_copied
end