99 lines
2.9 KiB
Text
99 lines
2.9 KiB
Text
/-
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Copyright (c) 2021 Mac Malone. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Authors: Mac Malone
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-/
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import Lake.BuildTask
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import Lake.BuildTrace
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namespace Lake
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-- # Active Build Target
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structure ActiveBuildTarget (t : Type) (a : Type) where
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artifact : a
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trace : t
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buildTask : BuildTask
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-- manually derive `Inhabited` instance because automatic deriving fails
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instance [Inhabited t] [Inhabited a] : Inhabited (ActiveBuildTarget t a) :=
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⟨Inhabited.default, Inhabited.default, BuildTask.nop⟩
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namespace ActiveBuildTarget
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def nil [Inhabited t] : ActiveBuildTarget t PUnit :=
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⟨(), Inhabited.default, BuildTask.nop⟩
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def pure (artifact : a) (trace : t) : ActiveBuildTarget t a :=
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⟨artifact, trace, BuildTask.nop⟩
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def opaque (trace : t) (task : BuildTask) : ActiveBuildTarget t PUnit :=
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⟨(), trace, task⟩
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def withTrace (trace : t) (self : ActiveBuildTarget r a) : ActiveBuildTarget t a :=
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{self with trace := trace}
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def discardTrace (self : ActiveBuildTarget t a) : ActiveBuildTarget PUnit a :=
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self.withTrace ()
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def mtime (self : ActiveBuildTarget MTime a) : MTime :=
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self.trace
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def withArtifact (artifact : a) (self : ActiveBuildTarget t b) : ActiveBuildTarget t a :=
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{self with artifact := artifact}
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def discardArtifact (self : ActiveBuildTarget t α) : ActiveBuildTarget t PUnit :=
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self.withArtifact ()
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def materialize (self : ActiveBuildTarget t α) : IO PUnit :=
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self.buildTask.await
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end ActiveBuildTarget
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def afterTarget (target : ActiveBuildTarget t a) (act : IO PUnit) : IO BuildTask :=
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afterTask target.buildTask act
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def afterTargetList (targets : List (ActiveBuildTarget t a)) (act : IO PUnit) : IO BuildTask :=
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afterTaskList (targets.map (·.buildTask)) act
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instance : HAndThen (ActiveBuildTarget t a) (IO PUnit) (IO BuildTask) :=
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⟨afterTarget⟩
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instance : HAndThen (List (ActiveBuildTarget t a)) (IO PUnit) (IO BuildTask) :=
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⟨afterTargetList⟩
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-- # File Target
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open System
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abbrev ActiveFileTarget := ActiveBuildTarget MTime FilePath
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namespace ActiveFileTarget
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def mk (file : FilePath) (depMTime : MTime) (task : BuildTask) :=
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ActiveBuildTarget.mk file depMTime task
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def pure (file : FilePath) (depMTime : MTime) :=
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ActiveBuildTarget.pure file depMTime
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end ActiveFileTarget
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-- # Lean Target
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abbrev LeanTarget a := ActiveBuildTarget LeanTrace a
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namespace LeanTarget
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def hash (self : LeanTarget a) := self.trace.hash
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def mtime (self : LeanTarget a) := self.trace.mtime
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def all (targets : List (LeanTarget a)) : IO (LeanTarget PUnit) := do
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let hash := Hash.foldList 0 <| targets.map (·.hash)
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let mtime := MTime.listMax <| targets.map (·.mtime)
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let task ← BuildTask.all <| targets.map (·.buildTask)
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return ActiveBuildTarget.mk () ⟨hash, mtime⟩ task
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def fromMTimeTarget (target : ActiveBuildTarget MTime a) : LeanTarget a :=
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{target with trace := LeanTrace.fromMTime target.trace}
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end LeanTarget
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