dogfood the request_reviews Mergify action

Author: bpholt

.mergify.yml

@@ -8,7 +8,7 @@
 pull_request_rules:
 - name: merge scala-steward's PRs
   conditions:
-  - author=scala-steward
+  - author=typelevel-steward[bot]
   - or:
     - body~=labels:.*early-semver-patch
     - body~=labels:.*early-semver-minor
@@ -168,3 +168,10 @@ pull_request_rules:
       add:
       - versioning
       remove: []
+- name: assign scala-steward's PRs for review
+  conditions:
+  - author=typelevel-steward[bot]
+  actions:
+    request_reviews:
+      users:
+      - armanbilge

build.sbt

@@ -11,9 +11,18 @@ ThisBuild / developers := List(
   tlGitHubDev("djspiewak", "Daniel Spiewak")
 )
 
-ThisBuild / mergifyStewardConfig ~= { _.map(_.copy(mergeMinors = true)) }
+ThisBuild / mergifyStewardConfig ~= {
+  _.map(_.copy(mergeMinors = true, author = "typelevel-steward[bot]"))
+}
 ThisBuild / mergifySuccessConditions += MergifyCondition.Custom("#approved-reviews-by>=1")
 ThisBuild / mergifyLabelPaths += { "docs" -> file("docs") }
+ThisBuild / mergifyPrRules += MergifyPrRule(
+  "assign scala-steward's PRs for review",
+  List(MergifyCondition.Custom("author=typelevel-steward[bot]")),
+  List(
+    MergifyAction.RequestReviews("armanbilge")
+  )
+)
 
 ThisBuild / scalafixDependencies ++= Seq(
   "com.github.liancheng" %% "organize-imports" % "0.6.0"

mergify/src/main/scala/org/typelevel/sbt/mergify/MergifyAction.scala

@@ -16,10 +16,11 @@
 
 package org.typelevel.sbt.mergify
 
-import cats.data._
-import cats.syntax.all._
-import io.circe._
-import io.circe.syntax._
+import cats.data.*
+import cats.syntax.all.*
+import io.circe.*
+import io.circe.syntax.*
+import sbt.librarymanagement.Developer
 
 sealed abstract class MergifyAction {
   private[mergify] def name = getClass.getSimpleName.toLowerCase
@@ -84,6 +85,24 @@ object MergifyAction {
         Option(randomCount)
       )
 
+    def apply(developers: List[Developer]) =
+      new RequestReviews(
+        developers
+          .map(_.id)
+          .toNel
+          .getOrElse(throw new RuntimeException("developers must be non-empty"))
+          .asLeft,
+        None)
+
+    def apply(developers: List[Developer], randomCount: Int) =
+      new RequestReviews(
+        developers
+          .map(_.id)
+          .toNel
+          .getOrElse(throw new RuntimeException("developers must be non-empty"))
+          .asLeft,
+        randomCount.some)
+
     implicit def encoder: Encoder[RequestReviews] =
       Encoder.forProduct2("users", "random_count") { requestReviews =>
         (requestReviews.users.fold(_.asJson, _.asJson), requestReviews.randomCount)