Create the @scala_compiler_sources repo
#1635
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Contains aliases to versioned Scala compiler source repository targets. Part of bazel-contrib#1482. Updates the version specific repo references in the srcs attribute of `//third_party/dependency_analyzer/src/main/io/bazel/rulesscala/dependencyanalyzer/compiler:dep_reporting_compiler`. Now these are references to versioned targets in `@scala_compiler_sources//`, which are aliases to those versioned compiler source repos. In a Bzlmod world, this enables `rules_scala` to import only the `scala_compiler_sources` repo in `MODULE.bazel`, instead of importing each individual versioned compiler source repo. This then allows `rules_scala` clients to set multiple `SCALA_VERSIONS` without requiring them to import this repo or any versioned compiler source repo. The Bzlmodifcation of the test repos under `dt_patches` (coming in a future change) revealed the need for this flexibility.
simuons
requested changes
Oct 25, 2024
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| scala_library_for_plugin_bootstrapping( | ||
| name = "dep_reporting_compiler", | ||
| srcs = select({ |
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Since you are hiding/unifying version specific repositories under @scala_compiler_sources maybe this select should be moved into that repository. I mean @scala_compiler_sources would have a single alias target with select to version specific sources. For example:
alias(
name = "src",
visibility = ["//visibility:public"],
actual = select({"@io_bazel_rules_scala_config//:scala_version_2_12_19": "@scala_compiler_source_2_12_19//:src"}),
)
And here in compilation target you would specify srcs = ["@scala_compiler_sources//:src"],
What do you think?
Also I think that compilation target could go into that new repository, but let's not go down that rabbit hole now.
simuons
approved these changes
Oct 25, 2024
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Description
Contains aliases to versioned Scala compiler source repository targets. Part of #1482.
Updates the version specific repo references in the srcs attribute of
//third_party/dependency_analyzer/src/main/io/bazel/rulesscala/dependencyanalyzer/compiler:dep_reporting_compiler. Now these are references to versioned targets in@scala_compiler_sources//, which are aliases to those versioned compiler source repos.Motivation
In a Bzlmod world, this enables
rules_scalato import only thescala_compiler_sourcesrepo inMODULE.bazel, instead of importing each individual versioned compiler source repo.This then allows
rules_scalaclients to set multipleSCALA_VERSIONSwithout requiring them to import this repo or any versioned compiler source repo. The Bzlmodifcation of the test repos underdt_patches(coming in a future change) revealed the need for this flexibility.