Class: Hobix::Util::Patcher
- Inherits:
-
Object
- Object
- Hobix::Util::Patcher
- Defined in:
- lib/hobix/util/patcher.rb
Class Method Summary collapse
-
.[](*paths) ⇒ Object
Alias for Patcher.new.
Instance Method Summary collapse
-
#apply(path) ⇒ Object
Apply the patches loaded into this class against a
path
containing unaltered files. - #file_create(target, text) ⇒ Object
- #file_ensure(target, text) ⇒ Object
- #file_remove(target, text) ⇒ Object
-
#initialize(*paths) ⇒ Patcher
constructor
Initialize the Patcher with a list of
paths
to patches which must be applied in order. - #yaml_merge(obj, merge) ⇒ Object
Constructor Details
Class Method Details
Instance Method Details
#apply(path) ⇒ Object
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# File 'lib/hobix/util/patcher.rb', line 61 def apply( path ) @patches.map do |fname, patchset| fname = File.join( path, fname ) # .gsub( /^.*?[\/\\]/, '' ) ) ftarg = File.read( fname ) rescue '' ftarg = YAML::load( ftarg ) if fname =~ /\.yaml$/ patchset.each_with_index do |(ptype, patch), patchno| # apply the changes puts "*** Applying patch ##{ patchno + 1 } for #{ fname } (#{ ptype })." ftarg = method( ptype.gsub( /\W/, '_' ) ).call( ftarg, patch ) end [fname, ftarg] end. each do |fname, ftext| # save the files if ftext == :remove FileUtils.rm_rf fname else FileUtils.makedirs( File.dirname( fname ) ) ftext = ftext.to_yaml if fname =~ /\.yaml$/ File.open( fname, 'w+' ) { |f| f << ftext } end end end |
#file_create(target, text) ⇒ Object
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# File 'lib/hobix/util/patcher.rb', line 91 def file_create( target, text ) text.to_s end |
#file_ensure(target, text) ⇒ Object
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# File 'lib/hobix/util/patcher.rb', line 95 def file_ensure( target, text ) target << text unless target.include? text target end |
#file_remove(target, text) ⇒ Object
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# File 'lib/hobix/util/patcher.rb', line 87 def file_remove( target, text ) :remove end |
#yaml_merge(obj, merge) ⇒ Object
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# File 'lib/hobix/util/patcher.rb', line 100 def yaml_merge( obj, merge ) obj = obj.value if obj.respond_to? :value if obj.class != merge.class and merge.class != Hash raise PatchError, "*** Patch failure since #{ obj.class } != #{ merge.class }." end case obj when Hash merge.each do |k, v| if obj.has_key? k yaml_merge obj[k], v else obj[k] = v end end when Array at = nil merge.each do |v| vat = obj.index( v ) if vat at = vat if vat > at.to_i else if at obj[at+=1,0] = v else obj << v end end end when String obj.replace merge else merge.each do |k, v| ivar = obj.instance_variable_get "@#{k}" if ivar yaml_merge ivar, v else obj.instance_variable_set "@#{k}", v end end end obj end |