mirror of https://github.com/sbt/sbt.git
571b179574
Right now, the sbt.internal.io.Source is something of a second class
citizen within sbt. Since sbt 0.13, there have been extension classes
defined that can convert a file to a PathFinder but no analog has been
introduced for sbt.internal.io.Source.
Given that sbt.internal.io.Source was not really intended to be part of
the public api (just look at its package), I think it makes sense to
just replace it with Glob. In this commit, I add extension
methods to Glob and Seq[Glob] that make it possible to easily
retrieve all of the files for a particular Glob within a task. The
upshot is that where previously, we'd have had to write something like:
watchSources += Source(baseDirectory.value / "src" / "main" / "proto", "*.proto", NothingFilter)
now we can write
watchGlobs += baseDirectory.value / "src" / "main" / "proto" * "*.proto"
Moreover, within a task, we can now do something like:
foo := {
val allWatchGlobs: Seq[File] = watchGlobs.value.all
println(allWatchSources.mkString("all watch source files:\n", "\n", ""))
}
Before we would have had to manually retrieve the files.
The implementation of the dsl uses the new GlobExtractor class which
proxies file look ups through a FileTree.Repository. This makes it so
that, by default, all file i/o using Sources will use the default
FileTree.Repository. The default is a macro that returns
`sbt.Keys.fileTreeRepository.value: @sbtUnchecked`. By doing it this
way, the default repository can only be used within a task definition
(since it delegates to `fileTreeRepository.value`). It does not,
however, prevent the user from explicitly providing a
FileTree.Repository instance which the user is free to instantiate
however they wish.
Bonus: optimize imports in Def.scala and Defaults.scala
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