Refactor rules into configurable phases

WORKSPACE

@@ -30,22 +30,22 @@ http_archive(
     urls = ["https://github.com/google/protobuf/archive/0038ff49af882463c2af9049356eed7df45c3e8e.zip"],
 )
 
-load("//rules/scala:workspace.bzl", "scala_repositories", "scala_register_toolchains")
+load("//rules/scala:workspace.bzl", "scala_register_toolchains", "scala_repositories")
 
 scala_repositories()
 
 scala_register_toolchains()
 
-load("//rules/scalafmt:workspace.bzl", "scalafmt_repositories", "scalafmt_default_config")
+load("//rules/scalafmt:workspace.bzl", "scalafmt_default_config", "scalafmt_repositories")
 
 scalafmt_repositories()
 
 scalafmt_default_config(".scalafmt.conf")
 
 load(
     "//rules/scala_proto:workspace.bzl",
-    "scala_proto_repositories",
     "scala_proto_register_toolchains",
+    "scala_proto_repositories",
 )
 
 scala_proto_repositories()

docs/stardoc/providers.md

@@ -220,6 +220,29 @@ Zinc configuration.
 </table>
 
 
+<a name="#ScalaRulePhase"></a>
+## ScalaRulePhase
+
+A Scala compiler plugin
+
+### Fields
+
+<table class="params-table">
+  <colgroup>
+    <col class="col-param" />
+    <col class="col-description" />
+  </colgroup>
+  <tbody>
+    <tr id="#ScalaRulePhase_phases">
+      <td><code>phases</code></td>
+      <td>
+        <p>the phases to add</p>
+      </td>
+    </tr>
+  </tbody>
+</table>
+
+
 <a name="#ZincInfo"></a>
 ## ZincInfo
 

rules/providers.bzl

@@ -60,6 +60,13 @@ ZincConfiguration = provider(
     },
 )
 
+ScalaRulePhase = provider(
+    doc = "A Scala compiler plugin",
+    fields = {
+        "phases": "the phases to add",
+    },
+)
+
 def _declare_zinc_configuration_implementation(ctx):
     return [ZincConfiguration(
         compiler_bridge = ctx.files.compiler_bridge,

rules/rules_scala/private/compat.bzl

@@ -12,8 +12,8 @@ load(
 )
 load(
     "//rules:scala.bzl",
-    _scala_library = "scala_library",
     _scala_binary = "scala_binary",
+    _scala_library = "scala_library",
     _scala_test = "scala_test",
 )
 load(

rules/scala/BUILD

@@ -1,4 +1,4 @@
-load("//rules:scala.bzl", "scala_library", "scala_binary", "scala_deps_toolchain", "scala_runner_toolchain")
+load("//rules:scala.bzl", "scala_binary", "scala_deps_toolchain", "scala_library", "scala_runner_toolchain")
 load("//rules:scalac.bzl", "scalac_binary", "scalac_library")
 load("//rules:scalafmt.bzl", "scala_format_test")
 

rules/scala/deps/DepsRunner.scala

@@ -38,7 +38,7 @@ object DepsRunner extends SimpleMain {
     parser
   }
 
-  protected[this] def work(args: Array[String]) = {
+  protected[this] def work(args: Array[String]): Unit = {
     val namespace = argParser.parseArgs(args)
 
     val label = namespace.getString("label").tail
@@ -75,11 +75,10 @@ object DepsRunner extends SimpleMain {
       println(s"buildozer 'add deps $depLabel' $label")
     }
 
-    if (add.nonEmpty || remove.nonEmpty) {
-      sys.exit(1)
+    if (add.isEmpty && remove.isEmpty) {
+      try Files.createFile(namespace.get[File]("success").toPath)
+      catch { case _: FileAlreadyExistsException => }
     }
 
-    try Files.createFile(namespace.get[File]("success").toPath)
-    catch { case _: FileAlreadyExistsException => }
   }
 }