Class: Chef::Provider::RemoteFile

Inherits:
File show all
Defined in:
lib/chef/provider/remote_file.rb

Instance Attribute Summary

Attributes inherited from Chef::Provider

#current_resource, #new_resource, #run_context

Instance Method Summary collapse

Methods inherited from File

#action_delete, #action_touch, #backup, #compare_content, #compare_group, #compare_mode, #compare_owner, #set_content, #set_group, #set_mode, #set_owner

Methods included from Mixin::Checksum

#checksum

Methods inherited from Chef::Provider

#action_nothing, build_from_file, #cookbook_name, #initialize, #node, #resource_collection

Methods included from Mixin::ConvertToClassName

#convert_to_class_name, #convert_to_snake_case, #filename_to_qualified_string, #snake_case_basename

Methods included from Mixin::RecipeDefinitionDSLCore

#method_missing

Methods included from Mixin::Language

#data_bag, #data_bag_item, #platform?, #search, #value_for_platform

Constructor Details

This class inherits a constructor from Chef::Provider

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Chef::Mixin::RecipeDefinitionDSLCore

Instance Method Details

#action_createObject



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# File 'lib/chef/provider/remote_file.rb', line 34

def action_create
  assert_enclosing_directory_exists!

  Chef::Log.debug("#{@new_resource} checking for changes")

  if current_resource_matches_target_checksum?
    Chef::Log.debug("#{@new_resource} checksum matches target checksum (#{@new_resource.checksum}) - not updating")
  else
    Chef::REST.new(@new_resource.source, nil, nil).fetch(@new_resource.source) do |raw_file|
      if matches_current_checksum?(raw_file)
        Chef::Log.debug "#{@new_resource} target and source checksums are the same - not updating"
      else
        backup_new_resource
        FileUtils.cp raw_file.path, @new_resource.path
        Chef::Log.info "#{@new_resource} updated"
        @new_resource.updated_by_last_action(true)
      end
    end
  end
  enforce_ownership_and_permissions

  @new_resource.updated_by_last_action?
end

#action_create_if_missingObject



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# File 'lib/chef/provider/remote_file.rb', line 58

def action_create_if_missing
  if ::File.exists?(@new_resource.path)
    Chef::Log.debug("#{@new_resource} exists, taking no action.")
  else
    action_create
  end
end

#backup_new_resourceObject



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# File 'lib/chef/provider/remote_file.rb', line 91

def backup_new_resource
  if ::File.exists?(@new_resource.path)
    Chef::Log.debug "#{@new_resource} checksum changed from #{@current_resource.checksum} to #{@new_resource.checksum}"
    backup @new_resource.path
  end
end

#current_resource_matches_target_checksum?Boolean



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# File 'lib/chef/provider/remote_file.rb', line 72

def current_resource_matches_target_checksum?
  @new_resource.checksum && @current_resource.checksum && @current_resource.checksum =~ /^#{Regexp.escape(@new_resource.checksum)}/
end

#enforce_ownership_and_permissionsObject



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# File 'lib/chef/provider/remote_file.rb', line 66

def enforce_ownership_and_permissions
  set_owner if @new_resource.owner
  set_group if @new_resource.group
  set_mode  if @new_resource.mode
end

#load_current_resourceObject



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# File 'lib/chef/provider/remote_file.rb', line 29

def load_current_resource
  super
  @current_resource.checksum(checksum(@current_resource.path)) if ::File.exist?(@current_resource.path)
end

#matches_current_checksum?(candidate_file) ⇒ Boolean



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# File 'lib/chef/provider/remote_file.rb', line 76

def matches_current_checksum?(candidate_file)
  Chef::Log.debug "#{@new_resource} checking for file existence of #{@new_resource.path}"
  if ::File.exists?(@new_resource.path)
    Chef::Log.debug "#{@new_resource} file exists at #{@new_resource.path}"
    @new_resource.checksum(checksum(candidate_file.path))
    Chef::Log.debug "#{@new_resource} target checksum: #{@current_resource.checksum}"
    Chef::Log.debug "#{@new_resource} source checksum: #{@new_resource.checksum}"

    @new_resource.checksum == @current_resource.checksum
  else
    Chef::Log.debug "#{@new_resource} creating #{@new_resource.path}"
    false
  end
end

#source_file(source, current_checksum, &block) ⇒ Object



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# File 'lib/chef/provider/remote_file.rb', line 98

def source_file(source, current_checksum, &block)
  if absolute_uri?(source)
    fetch_from_uri(source, &block)
  elsif !Chef::Config[:solo]
    fetch_from_chef_server(source, current_checksum, &block)
  else
    fetch_from_local_cookbook(source, &block)
  end
end