80 lines
1.7 KiB
Ruby
80 lines
1.7 KiB
Ruby
module Guard
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# The interactor reads user input and triggers
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# specific action upon them unless its locked.
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#
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# Currently the following actions are implemented:
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#
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# - stop, quit, exit, s, q, e => Exit Guard
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# - reload, r, z => Reload Guard
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# - pause, p => Pause Guard
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# - Everything else => Run all
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#
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class Interactor
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class LockException < Exception; end
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class UnlockException < Exception; end
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attr_reader :locked
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# Initialize the interactor in unlocked state.
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#
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def initialize
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@locked = false
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end
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# Start the interactor in its own thread.
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#
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def start
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return if ENV["GUARD_ENV"] == 'test'
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@thread = Thread.new do
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loop do
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begin
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if !@locked && (entry = $stdin.gets)
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entry.gsub! /\n/, ''
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case entry
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when 'stop', 'quit', 'exit', 's', 'q', 'e'
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::Guard.stop
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when 'reload', 'r', 'z'
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::Guard::Dsl.reevaluate_guardfile
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::Guard.reload
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when 'pause', 'p'
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::Guard.pause
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else
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::Guard.run_all
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end
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end
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sleep 0.1
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rescue LockException
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lock
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rescue UnlockException
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unlock
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end
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end
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end
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end
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# Lock the interactor.
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#
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def lock
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if !@thread || @thread == Thread.current
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@locked = true
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else
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@thread.raise(LockException)
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end
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end
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# Unlock the interactor.
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#
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def unlock
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if !@thread || @thread == Thread.current
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@locked = false
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else
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@thread.raise(UnlockException)
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end
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end
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end
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end
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