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Kill mill.modules package #2513

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merged 7 commits into from
May 11, 2023
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@lihaoyi lihaoyi commented May 10, 2023

Ticks off #1826 (comment)

mill.modules is a very confusing name that I came up with very early in Mill's development. It misleadingly has nothing to do with mill.Module, and is just a grab bag of helpers. This PR moves them to the JVM packages which are most related to their functionality

We basically move the following files:

  1. mill.modules.Assembly -> mill.scalalib.Assembly
  2. mill.modules.Util -> mill.util.Util
  3. mill.modules.Jvm -> mill.util.Jvm
  4. mill.modules.CoursierSupport -> mill.util.CoursierSupport

There is probably further cleanup and re-organization we can do here. Currently, Util and Jvm are pretty tightly coupled together, with VisualizeModule living in main stopping us from moving them all to scalalib. An alternative is to move Assembly to mill.util, so at least createJar and createAssembly can live in the same package rather than being split across mill.{util,scalalib}.

But for now, just breaking up mill.modules should already be a step forward, and further cleanups can come in follow up PRs

@lihaoyi lihaoyi requested a review from lefou May 10, 2023 00:50
@lihaoyi lihaoyi marked this pull request as ready for review May 10, 2023 01:36
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Looks good to me, but we need some @deprecated type aliases and forwarder objects to keep source compatibility for a while. Migration and cross compilation is otherwise a pita and especially, when not the whole ecosystem is migrated, it's less attractive to try something out if there is no easy going back.

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lihaoyi commented May 11, 2023

Added backwards compat forwarders. Needed to put them in scalalib/ even though they're in mill.main, due to Assembly being moved there

@lihaoyi lihaoyi requested a review from lefou May 11, 2023 03:56
@lihaoyi lihaoyi merged commit d1030f4 into com-lihaoyi:main May 11, 2023
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@lefou lefou added this to the 0.11.0-M9 milestone May 11, 2023
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2 participants