use gha packages

.github/workflows/ci.yml

@@ -15,3 +15,5 @@ jobs:
           cache: sbt
 
       - run: sbt 'scalafixAll --check' scalafmtCheck +test
+        env:
+          GH_PACKAGES_TOKEN: ${{ secrets.GH_PACKAGES_TOKEN }}

build.sbt

@@ -18,12 +18,5 @@ lazy val demo =
     .dependsOn(core)
     .withEfectMonad
     .settings(libraryDependencies += "com.htmlism" %% "rufio-zio" % "76-c565ab28")
-
-ThisBuild / resolvers += "mcanlas/rufio" at "https://maven.pkg.github.com/mcanlas/rufio/"
-
-ThisBuild / credentials += Credentials(
-  "GitHub Package Registry",
-  "maven.pkg.github.com",
-  "mcanlas",
-  sys.env("GH_PACKAGES_TOKEN")
-)
+    .withGitHubPackagesCredentials
+    .withResolver("rufio")

project/GitHubPackages.scala

@@ -0,0 +1,36 @@
+import sbt._
+import sbt.Keys._
+
+/**
+  * Automatically enriches projects with the following settings (despite the word "override").
+  */
+object GitHubPackages extends AutoPlugin {
+
+  /**
+    * Thus plug-in will automatically be enabled; it has no requirements.
+    */
+  override def trigger: PluginTrigger = AllRequirements
+
+  val autoImport = ThingsToAutoImport
+
+  object ThingsToAutoImport {
+    implicit class PackagesOps(p: Project) {
+      def withGitHubPackagesCredentials: Project =
+        p
+          .settings(
+            credentials += Credentials(
+              "GitHub Package Registry",
+              "maven.pkg.github.com",
+              "mcanlas",
+              sys.env("GH_PACKAGES_TOKEN")
+            )
+          )
+
+      def withResolver(project: String): Project =
+        p
+          .settings(
+            resolvers += s"mcanlas/$project" at s"https://maven.pkg.github.com/mcanlas/$project/"
+          )
+    }
+  }
+}