Locking/queueing

[devonoel]

Consider implementing a lock or queue for tasks. Does it make sense to only allow each individual task to be run by one person at a time, or is that something that should be handled by the client?

[devonoel]

Couple notes on how this would work, to keep my brain on task:

• .load should initialize a locked field in each task object loaded in to global.taskList with initial value false
• .exec should check the lock before running a task, switch it on and start running the task if unlocked, and emit an event if the lock is engaged and return without running the task
• .exec's callback should unlock the task, regardless of whether it completes successfully or throws an error

[devonoel]

Actually, on second thought, I hadn't considered a situation where somebody might want to say, run a deploy task against two separate stages at once using variables. I think I'll close this issue for now, it adds a lot of arguably unnecessary complexity.