A simple method that checks the existence of an already running rake tasks (as the PID file and task name) and telling the task is running or not.
and in .rake file:
require "single_running_checker" include SingleRunningChecker
task :some_task => :environment do do_something until task_running?('some_task') end task_running?(name, only_check=false) returns true when found pid-file (in tmp/pids) and process command line contains name. If only_check true, method will not create pid-file.
Note on Patches/Pull Requests
Fork the project.
Make your feature addition or bug fix.
Add tests for it. This is important so I don't break it in a future version unintentionally.
Commit, do not mess with rakefile, version, or history. (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)
Send me a pull request. Bonus points for topic branches.
Copyright © 2010 afa. See LICENSE for details.