Add support for close_issue (update errbit_plugin)

Author: 2called-chaos

Diff for: errbit_gitlab_plugin.gemspec

@@ -18,7 +18,7 @@ Gem::Specification.new do |spec|
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
 
-  spec.add_runtime_dependency 'errbit_plugin', '~> 0.5', '>= 0.5.0'
+  spec.add_runtime_dependency 'errbit_plugin', '~> 0.6', '>= 0.6.0'
   spec.add_runtime_dependency 'gitlab', '~> 4.17', '>= 4.0.0'
 
   spec.add_development_dependency 'bundler', '~> 1.3'

Diff for: lib/errbit_gitlab_plugin/issue_tracker.rb

@@ -124,6 +124,22 @@ def create_issue(title, body, reported_by = nil)
       format('%s/%s', url, ticket.iid)
     end
 
+    def close_issue(issue_link, closed_by = nil)
+      iid = issue_link.to_s.split("/").last.to_i
+
+      if iid.zero?
+        false
+      else
+        with_gitlab do |g|
+          g.close_issue(gitlab_project_id, iid)
+        end
+
+        true
+      end
+    rescue Gitlab::Error
+      false
+    end
+
     private
 
     #