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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)
(\ ! map (|>> (try.else (list))
(monad.map ! (targets fs))))
(\ ! join)
(\ ! map (|>> list.joined (list& path))))))
(def: .public delay
Nat
1,000)
(def: (pause delay)
(-> Nat (Async (Try Any)))
(async.delayed 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
(get@ #///.sources)
set.list
(monad.map ! (..targets fs))
(\ ! map list.joined))]
(do {! ///action.monad}
[_ (monad.map ! (\ 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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