lean4-htt/Lake/Build/MonadBasic.lean
2021-12-04 12:58:00 -05:00

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/-
Copyright (c) 2021 Mac Malone. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mac Malone
-/
import Lake.Util.Task
import Lake.Config.Opaque
import Lake.Config.InstallPath
import Lake.Build.Trace
import Lake.Build.IO
open System
namespace Lake
structure BuildContext where
package : OpaquePackage
workspace : OpaqueWorkspace
leanInstall : LeanInstall
lakeInstall : LakeInstall
leanTrace : BuildTrace
abbrev BuildM :=
ReaderT BuildContext BuildIO
/-- `Task` type for `BuildM`/`BuildIO`. -/
abbrev BuildTask :=
OptionIOTask
def BuildM.run (logMethods : LogMethods BaseIO) (ctx : BuildContext) (self : BuildM α) : IO α :=
self ctx |>.run logMethods
def failOnBuildCycle [ToString k] : Except (List k) α → BuildM α
| Except.ok a => a
| Except.error cycle => do
let cycle := cycle.map (s!" {·}")
error s!"build cycle detected:\n{"\n".intercalate cycle}"