Class: Diffy::Diff
Class Attribute Summary collapse
- .default_format ⇒ Object
-
.default_options ⇒ Object
default options passed to new Diff objects.
Instance Attribute Summary collapse
-
#diff ⇒ Object
readonly
Returns the value of attribute diff.
-
#options ⇒ Object
readonly
Returns the value of attribute options.
-
#string1 ⇒ Object
readonly
Returns the value of attribute string1.
-
#string2 ⇒ Object
readonly
Returns the value of attribute string2.
Instance Method Summary collapse
- #each ⇒ Object
- #each_chunk ⇒ Object
-
#initialize(string1, string2, options = {}) ⇒ Diff
constructor
- supported options
:diff
- A cli options string passed to diff
:source
-
Either strings or files.
- A cli options string passed to diff
- supported options
- #tempfile(string) ⇒ Object
- #to_s(format = nil) ⇒ Object
Constructor Details
#initialize(string1, string2, options = {}) ⇒ Diff
supported options
:diff
-
A cli options string passed to diff
:source
-
Either strings or files. Determines whether string1 and string2 should be interpreted as strings or file paths.
:include_diff_info
-
Include diff header info
:include_plus_and_minus_in_html
-
Show the +, -, ‘ ’ at the beginning of lines in html output.
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# File 'lib/diffy/diff.rb', line 32 def initialize(string1, string2, = {}) @options = self.class..merge() if ! ['strings', 'files'].include?(@options[:source]) raise ArgumentError, "Invalid :source option #{@options[:source].inspect}. Supported options are 'strings' and 'files'." end @string1, @string2 = string1, string2 end |
Class Attribute Details
.default_format ⇒ Object
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# File 'lib/diffy/diff.rb', line 5 def default_format @default_format || :text end |
.default_options ⇒ Object
default options passed to new Diff objects
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# File 'lib/diffy/diff.rb', line 11 def @default_options ||= { :diff => '-U 10000', :source => 'strings', :include_diff_info => false, :include_plus_and_minus_in_html => false, :context => nil } end |
Instance Attribute Details
#diff ⇒ Object (readonly)
Returns the value of attribute diff.
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# File 'lib/diffy/diff.rb', line 23 def diff @diff end |
#options ⇒ Object (readonly)
Returns the value of attribute options.
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# File 'lib/diffy/diff.rb', line 23 def @options end |
#string1 ⇒ Object (readonly)
Returns the value of attribute string1.
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# File 'lib/diffy/diff.rb', line 23 def string1 @string1 end |
#string2 ⇒ Object (readonly)
Returns the value of attribute string2.
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# File 'lib/diffy/diff.rb', line 23 def string2 @string2 end |
Instance Method Details
#each ⇒ Object
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# File 'lib/diffy/diff.rb', line 67 def each lines = case @options[:include_diff_info] when false then diff.split("\n").reject{|x| x =~ /^(---|\+\+\+|@@|\\\\)/ }.map {|line| line + "\n" } when true then diff.split("\n").map {|line| line + "\n" } end if block_given? lines.each{|line| yield line} else lines.to_enum end end |
#each_chunk ⇒ Object
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# File 'lib/diffy/diff.rb', line 79 def each_chunk old_state = nil chunks = inject([]) do |cc, line| state = line.each_char.first if state == old_state cc.last << line else cc.push line.dup end old_state = state cc end if block_given? chunks.each{|chunk| yield chunk } else chunks.to_enum end end |
#tempfile(string) ⇒ Object
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# File 'lib/diffy/diff.rb', line 99 def tempfile(string) t = Tempfile.new('diffy') # ensure tempfiles aren't unlinked when GC runs by maintaining a # reference to them. @tempfiles ||=[] @tempfiles.push(t) t.print(string) t.flush t.close t.path end |
#to_s(format = nil) ⇒ Object
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# File 'lib/diffy/diff.rb', line 111 def to_s(format = nil) format ||= self.class.default_format formats = Format.instance_methods(false).map{|x| x.to_s} if formats.include? format.to_s enum = self enum.extend Format enum.send format else raise ArgumentError, "Format #{format.inspect} not found in #{formats.inspect}" end end |