Adde a script to verify JRuby rubyspec exclusion tags.

The script scans all tag files and report invalid entries,
i.e., those that have references to already resolved/closed bugs.

Sample output is like this:

Verifying tags in '/opt/work/jruby.git/spec/tags'...
62 JRuby jira issues used in the tags.

JRUBY-3885 -- Wrong State: Resolved. Used in the following tag files:
  - /opt/work/jruby.git/spec/tags/1.8/ruby/core/enumerable/none_tags.txt
JRUBY-3473 -- Wrong State: Resolved. Used in the following tag files:
  - /opt/work/jruby.git/spec/tags/1.8/ruby/core/thread/exit_tags.txt
  - /opt/work/jruby.git/spec/tags/1.8/ruby/core/thread/terminate_tags.txt

Author: vvs

spec/tags_verify.rb

@@ -0,0 +1,69 @@
+require 'xmlrpc/client'
+require 'pp'
+require 'set'
+
+# Simple script to scan all JRuby's rubyspec tags
+# and report invalid ones, i.e. those that have
+# references to already resolved/closed bugs.
+
+if ARGV.size != 2
+  puts "Usage: tags_verify.rb jira-login jira-password"
+  exit 1
+end
+
+class JiraVerifier
+  INVALID_STATUSES = {"5"=>"Resolved", "6"=>"Closed"}
+  def initialize(login, pass)
+    @server = XMLRPC::Client.new('jira.codehaus.org', "/rpc/xmlrpc")
+    @auth =  @server.call("jira1.login", login, pass)
+    @stat_info = {}
+    @server.call("jira1.getStatuses", @auth).each { |s|
+      @stat_info[s["id"]] = s["name"]
+    }
+    # pp @stat_info
+  end
+  def get_issue(id)
+    @server.call("jira1.getIssue", @auth, id)
+  end
+  def get_status(issue)
+    issue["status"]
+  end
+  def is_valid(issue)
+    INVALID_STATUSES[get_status(issue)].nil?
+  end
+  def check_ids(ids)
+    ids.each { |id, files|
+      issue = get_issue(id)
+      unless (is_valid(issue))
+        puts "#{id} -- Wrong State: #{@stat_info[get_status(issue)]}. Used in the following tag files:"
+        files.each { |filename|
+          puts "  - #{filename}"
+        }
+      end
+    }
+  end
+  def logout
+    @server.call("jira1.logout", @auth)
+  end
+end
+
+TAGS_DIR = File.expand_path(File.join(File.dirname(__FILE__), 'tags'))
+puts "Verifying tags in '#{TAGS_DIR}'..."
+
+ids = {}
+
+Dir.glob(TAGS_DIR + "/**/*.txt").each { |filename|
+  File.open(filename, 'r') { |f|
+    while (line = f.gets)
+      line.scan(/JRUBY-\d+/) { |id|
+        (ids[id] ||= Set.new) << filename
+      }
+    end
+  }
+}
+
+puts "#{ids.size} JRuby jira issues used in the tags."
+
+jira = JiraVerifier.new(ARGV[0], ARGV[1])
+jira.check_ids(ids)
+jira.logout