Use gha-scala-library-release-workflow to release to Maven Central

See:

* https://github.com/guardian/gha-scala-library-release-workflow/blob/main/docs/benefits.md
* https://github.com/guardian/gha-scala-library-release-workflow/blob/main/docs/configuration.md

Author: rtyley

.github/workflows/release.yml

@@ -0,0 +1,13 @@
+name: Release
+
+on:
+  workflow_dispatch:
+
+jobs:
+  release:
+    uses: guardian/gha-scala-library-release-workflow/.github/workflows/reusable-release.yml@v1
+    permissions: { contents: write, pull-requests: write }
+    secrets:
+      SONATYPE_TOKEN: ${{ secrets.AUTOMATED_MAVEN_RELEASE_SONATYPE_TOKEN }}
+      PGP_PRIVATE_KEY: ${{ secrets.AUTOMATED_MAVEN_RELEASE_PGP_SECRET }}
+      GITHUB_APP_PRIVATE_KEY: ${{ secrets.AUTOMATED_MAVEN_RELEASE_GITHUB_APP_PRIVATE_KEY }}

build.sbt

@@ -1,31 +1,25 @@
-import ReleaseTransformations._
-import Dependencies._
+import ReleaseTransformations.*
+import sbtversionpolicy.withsbtrelease.ReleaseVersion
+import Dependencies.*
 
-lazy val baseSettings = Seq(
+lazy val artifactProducingProjectSettings = Seq(
   scalaVersion := "2.13.16",
   organization := "com.madgag.scala-git",
-  scmInfo := Some(ScmInfo(
-    url("https://github.com/rtyley/scala-git"),
-    "scm:git:git@github.com:rtyley/scala-git.git"
-  )),
   licenses := Seq(License.Apache2),
-  scalacOptions ++= Seq("-deprecation", "-unchecked"),
+  scalacOptions ++= Seq("-deprecation", "-unchecked", "-release:11"),
   libraryDependencies ++= Seq(madgagCompress % Test, scalatest % Test)
 )
 
-lazy val `scala-git` = project.settings(baseSettings: _*).dependsOn(`scala-git-test` % Test)
+lazy val `scala-git` = project.settings(artifactProducingProjectSettings *).dependsOn(`scala-git-test` % Test)
 
-lazy val `scala-git-test` = project.in(file("scala-git-test")).settings(baseSettings: _*)
+lazy val `scala-git-test` = project.in(file("scala-git-test")).settings(artifactProducingProjectSettings *)
 
 ThisBuild / Test / testOptions +=
   Tests.Argument(TestFrameworks.ScalaTest, "-u", s"test-results/scala-${scalaVersion.value}", "-o")
 
-
-lazy val root = (project in file(".")).aggregate(`scala-git`, `scala-git-test`).
-  settings(baseSettings: _*).settings(
-  publishArtifact := false,
-  publish := {},
-  publishLocal := {},
+lazy val root = (project in file(".")).aggregate(`scala-git`, `scala-git-test`).settings(
+  publish / skip := true,
+  // releaseVersion := ReleaseVersion.fromAggregatedAssessedCompatibilityWithLatestRelease().value,
   releaseCrossBuild := true, // true if you cross-build the project for multiple Scala versions
   releaseProcess := Seq[ReleaseStep](
     checkSnapshotDependencies,
@@ -35,12 +29,8 @@ lazy val root = (project in file(".")).aggregate(`scala-git`, `scala-git-test`).
     setReleaseVersion,
     commitReleaseVersion,
     tagRelease,
-    // For non cross-build projects, use releaseStepCommand("publishSigned")
-    releaseStepCommandAndRemaining("+publishSigned"),
-    releaseStepCommand("sonatypeBundleRelease"),
     setNextVersion,
-    commitNextVersion,
-    pushChanges
+    commitNextVersion
   )
 )
 

project/plugins.sbt

@@ -1,5 +1,5 @@
-addSbtPlugin("com.github.sbt" % "sbt-release" % "1.1.0")
+addSbtPlugin("com.github.sbt" % "sbt-release" % "1.4.0")
 
-addSbtPlugin("com.github.sbt" % "sbt-pgp" % "2.2.1")
+addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.12.2")
 
-addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.9.21")
+addSbtPlugin("ch.epfl.scala" % "sbt-version-policy" % "3.2.1")

sonatype.sbt

@@ -1 +1 @@
-ThisBuild / version := "4.9-SNAPSHOT"
+ThisBuild / version := "5.0.0-SNAPSHOT"