implement eclude labels feature. Fix #52.

lib/CHANGELOG.md

@@ -5,8 +5,6 @@
 
 - *Merged pull-request:* Implement filtering of Pull Requests by milestones [\#50](https://github.com/skywinder/Github-Changelog-Generator/pull/50) ([skywinder](https://github.com/skywinder))
 
-- *Implemented enhancement:* Add support for forked repo \(to extend changelog with parent's changes\) [\#21](https://github.com/skywinder/Github-Changelog-Generator/issues/21)
-
 ## [1.2.8](https://github.com/skywinder/Github-Changelog-Generator/tree/1.2.8) (2015-02-17)
 [Full Changelog](https://github.com/skywinder/Github-Changelog-Generator/compare/1.2.7...1.2.8)
 

lib/github_changelog_generator.rb

@@ -502,11 +502,21 @@ module GitHubChangelogGenerator
         x.pull_request == nil
       }
 
+      filtered_issues = []
+
+      unless @options[:include_labels].nil?
         filtered_issues = issues.select { |issue|
-        #compare is there any labels from @options[:labels] array
+          #add all labels from @options[:incluse_labels] array
           (issue.labels.map { |label| label.name } & @options[:include_labels]).any?
         }
+      end
 
+      unless @options[:exclude_labels].nil?
+        filtered_issues = filtered_issues.select { |issue|
+          #delete all labels from @options[:exclude_labels] array
+          !(issue.labels.map { |label| label.name } & @options[:exclude_labels]).any?
+        }
+      end
 
       if @options[:add_issues_wo_labels]
         issues_wo_labels = issues.select {

lib/github_changelog_generator/parser.rb

@@ -6,7 +6,7 @@ require_relative 'version'
 module GitHubChangelogGenerator
   class Parser
     def self.parse_options
-      options = {:tag1 => nil, :tag2 => nil, :format => '%Y-%m-%d', :output => 'CHANGELOG.md', :include_labels => %w(bug enhancement), :pulls => true, :issues => true, :verbose => true, :add_issues_wo_labels => true, :merge_prefix => '*Merged pull-request:* ', :author => true, :pull_request_labels => nil, :filter_issues_by_milestone => true, :compare_link => true, :unreleased => true}
+      options = {:tag1 => nil, :tag2 => nil, :format => '%Y-%m-%d', :output => 'CHANGELOG.md', :include_labels => %w(bug enhancement), :exclude_labels => %w(duplicate question invalid wontfix), :pulls => true, :issues => true, :verbose => true, :add_issues_wo_labels => true, :merge_prefix => '*Merged pull-request:* ', :author => true, :pull_request_labels => nil, :filter_issues_by_milestone => true, :compare_link => true, :unreleased => true}
 
       parser = OptionParser.new { |opts|
         opts.banner = 'Usage: changelog_generator [options]'
@@ -52,9 +52,12 @@ module GitHubChangelogGenerator
         opts.on('--[no-]compare-link', 'Include compare link between older version and newer version. Default is true') do |v|
           options[:compare_link] = v
         end
-        opts.on('--include-labels  x,y,z', Array, 'Issues with that labels will be included to changelog. Default is \'bug,enhancement\'') do |list|
+        opts.on('--include-labels  x,y,z', Array, 'Issues only with that labels will be included to changelog. Default is \'bug,enhancement\'') do |list|
           options[:include_labels] = list
         end
+        opts.on('--exclude-labels  x,y,z', Array, 'Issues with that labels will be always excluded from changelog. Default is \'duplicate,question,invalid,wontfix\'') do |list|
+          options[:exclude_labels] = list
+        end
         opts.on('--labels-pr x,y,z', Array, 'Only pull requests with specified labels will be included to changelog. Default is nil') do |list|
           options[:pull_request_labels] = list
         end