plugin: Make it easier to modify extra conditions, e.g. add an author

plugin/src/main/scala/io/github/nafg/mergify/sbt/WriteMergify.scala

@@ -12,44 +12,45 @@ object WriteMergify extends AutoPlugin {
 
   override def trigger = allRequirements
 
-  val mergifyScalaStewardAuthor = settingKey[String]("The author that identifies Scala Steward pull requests")
-  val mergifyScalaStewardIncludedJobs = settingKey[Seq[WorkflowJob]](
-    "The generated jobs that have to pass to merge Scala Steward PRs"
-  )
-  val mergifyScalaStewardConditions = settingKey[Seq[Condition]]("The conditions for the Scala Steward PR rule")
-  val mergify                       = settingKey[Mergify]("The resulting Mergify object")
+  //noinspection ScalaWeakerAccess
+  object autoImport {
+    val mergifyExtraConditions = settingKey[Seq[Condition]]("Conditions required to merge other than passing the build")
+    val mergifyIncludedJobs = settingKey[Seq[WorkflowJob]](
+      "The generated jobs that have to pass to merge Scala Steward PRs"
+    )
+    val mergifyConditions = settingKey[Seq[Condition]]("The conditions for the Scala Steward PR rule")
+    val mergify = settingKey[Mergify]("The resulting Mergify object")
+  }
+
+  import autoImport.*
+
 
   def workflowJobCheckNames(jobs: Seq[WorkflowJob]) =
     for (job <- jobs; o <- job.oses; s <- job.scalas; v <- job.javas)
       yield s"${job.name} ($o, $s, ${v.render})"
 
-  def defaultScalaStewardAuthor = "scala-steward"
+  def defaultExtraConditions = Seq(Attr.Author :== "scala-steward")
 
-  def defaultScalaStewardConditions(author: String, jobs: Seq[WorkflowJob]) =
-    (Attr.Author :== author) +:
+  def defaultConditions(extraConditions: Seq[Condition], jobs: Seq[WorkflowJob]) =
+    extraConditions ++
       (for (name <- workflowJobCheckNames(jobs))
         yield Attr.CheckSuccess :== name)
 
-  def defaultScalaStewardMergify(conditions: Seq[Condition]) =
+  def buildMergify(conditions: Seq[Condition]) =
     defaultMergify
       .addPullRequestRule("Automatically merge successful Scala Steward PRs")(defaultQueueAction)(
-        conditions*
+        conditions *
       )
 
-  override def projectSettings = {
+  override def projectSettings =
     Seq(
-      mergifyScalaStewardAuthor       := defaultScalaStewardAuthor,
-      mergifyScalaStewardIncludedJobs := githubWorkflowGeneratedCI.value.filter(_.id == "build"),
-      mergifyScalaStewardConditions :=
-        defaultScalaStewardConditions(
-          mergifyScalaStewardAuthor.value,
-          mergifyScalaStewardIncludedJobs.value
-        ),
-      mergify := defaultScalaStewardMergify(mergifyScalaStewardConditions.value),
+      mergifyExtraConditions := defaultExtraConditions,
+      mergifyIncludedJobs := githubWorkflowGeneratedCI.value.filter(_.id == "build"),
+      mergifyConditions := defaultConditions(mergifyExtraConditions.value, mergifyIncludedJobs.value),
+      mergify := buildMergify(mergifyConditions.value),
       githubWorkflowGenerate := {
         githubWorkflowGenerate.value
         IO.write(file(".mergify.yml"), mergify.value.toYaml)
       }
     )
-  }
 }

plugin/src/test/scala/io/github/nafg/mergify/sbt/Test.scala

@@ -1,15 +1,16 @@
 package io.github.nafg.mergify.sbt
 
+import io.github.nafg.mergify.Condition
 import io.github.nafg.mergify.dsl.*
 
 import sbtghactions.{JavaSpec, WorkflowJob}
 
 class Test extends munit.FunSuite {
   test("Simple example") {
     val mergify =
-      WriteMergify.defaultScalaStewardMergify(
-        WriteMergify.defaultScalaStewardConditions(
-          WriteMergify.defaultScalaStewardAuthor,
+      WriteMergify.buildMergify(
+        WriteMergify.defaultConditions(
+          WriteMergify.defaultExtraConditions,
           Seq(
             WorkflowJob(
               id = "build",
@@ -66,4 +67,32 @@ class Test extends munit.FunSuite {
       thing.toYaml
     )
   }
+
+  test("Multiple alternatives") {
+    val jobs = List(WorkflowJob("build", "Build", Nil, scalas = List("2.13.9", "3.2.0")))
+    val authorsCondition =
+      Seq("scala-steward", "renovate[bot]")
+        .map(Attr.Author :== _)
+        .reduce[Condition](_ || _)
+    val conditions = WriteMergify.defaultConditions(Seq(authorsCondition), jobs)
+
+    assertEquals(
+      """defaults: {}
+        |queue_rules:
+        |  - name: default
+        |    conditions: []
+        |pull_request_rules:
+        |  - name: Automatically merge successful Scala Steward PRs
+        |    conditions:
+        |      - or:
+        |          - author=scala-steward
+        |          - author=renovate[bot]
+        |      - check-success=Build (ubuntu-latest, 2.13.9, temurin@11)
+        |      - check-success=Build (ubuntu-latest, 3.2.0, temurin@11)
+        |    actions:
+        |        queue: {}
+        |""".stripMargin,
+      WriteMergify.buildMergify(conditions).toYaml
+    )
+  }
 }