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(.module:
[library
[lux "*"
[abstract
["." monad {"+" [do]}]]
[control
["." try {"+" [Try]}]
[concurrency
["." async {"+" [Async]}]]]
[data
[collection
["." list]
["." set]]]
[world
[program {"+" [Program]}]
[shell {"+" [Exit Shell]}]
[console {"+" [Console]}]
["." file
["." watch {"+" [Watcher]}]]]]]
["." // "_"
["/#" // "_"
[command {"+" [Command]}]
["#" profile]
["#." action]
[dependency
[resolution {"+" [Resolution]}]]]])
(def: (targets fs path)
(-> (file.System Async) file.Path (Async (List file.Path)))
(let [! async.monad]
(|> path
(\ fs sub_directories)
(\ ! each (|>> (try.else (list))
(monad.each ! (targets fs))))
(\ ! conjoint)
(\ ! each (|>> list.together (list& path))))))
(def: .public delay
Nat
1,000)
(def: (pause delay)
(-> Nat (Async (Try Any)))
(async.after delay (#try.Success [])))
(def: .public (do! delay watcher command)
(All (_ a)
(-> Nat (Watcher Async)
(-> (Console Async) (Program Async) (file.System Async) (Shell Async) Resolution (Command [Exit a]))
(-> (Console Async) (Program Async) (file.System Async) (Shell Async) Resolution (Command [Exit Any]))))
(function (_ console program fs shell resolution)
(function (_ profile)
(with_expansions [<call> ((command console program fs shell resolution) profile)]
(do [! async.monad]
[targets (|> profile
(value@ #///.sources)
set.list
(monad.each ! (..targets fs))
(\ ! each list.together))]
(do [! ///action.monad]
[_ (monad.each ! (\ watcher start watch.modification) targets)
_ <call>]
(loop [_ []]
(do !
[_ (..pause delay)
events (\ watcher poll [])]
(case events
(#.Item _)
(do !
[_ <call>]
(recur []))
#.End
(recur []))))))))))
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