fix: Fix "SLF4J: Failed to load ..." issue by adding slf4j-simple

.scala-steward.conf

@@ -1,11 +1,14 @@
+pullRequests.frequency = "14 days"
+
 updates.limit = 3
 
 updates.pin = [
   {
     // jgit 6.x require JDK 11
     groupId = "org.eclipse.jgit"
     version = "5."
-  }
+  },
+  { groupId = "org.slf4j", artifactId = "slf4j-simple", version = "1." }
 ]
 
 updates.ignore = [

build.sbt

@@ -71,7 +71,10 @@ lazy val app = (project in file("app"))
     csRun / sourceDirectory := {
       (baseDirectory).value.getParentFile / "src" / "main" / "conscript"
     },
-    libraryDependencies += launcherIntf
+    libraryDependencies ++= List(
+      launcherIntf,
+      slf4jsimple
+    )
   )
 
 lazy val crossSbt = Seq(
@@ -157,14 +160,14 @@ lazy val lib = (project in file("library"))
     libraryDependencies ++= Seq(
       stringTemplate,
       jgit,
+      slf4jsimple,
       commonsIo,
       plexusArchiver,
       scalaXml,
       parserCombinator(scalaVersion.value),
       scalacheck % Test,
       sbtIo % Test,
-      scalamock % Test,
-      "org.slf4j" % "slf4j-simple" % "1.7.36" % Test
+      scalamock % Test
     ),
     Test / testOptions += Tests.Argument(TestFrameworks.ScalaCheck, "-minSuccessfulTests", "1000", "-workers", "10")
   )
@@ -179,6 +182,7 @@ lazy val launcher = (project in file("launcher"))
     crossScalaVersions := List(scala212, scala213, scala3),
     libraryDependencies ++= Seq(
       coursier,
+      slf4jsimple,
       verify % Test,
       sbtIo % Test
     ),

launcher/src/test/scala/LauncherTest.scala

@@ -2,7 +2,7 @@ package testpkg
 
 import giter8._
 import verify._
-import java.io.File
+import java.io.{ByteArrayOutputStream, File, PrintStream}
 import sbt.io.IO
 
 object LauncherTest extends BasicTestSuite {
@@ -22,12 +22,30 @@ object LauncherTest extends BasicTestSuite {
     }
   }
 
-  /*
-  test("runs git@github.com:scala/scala-seed.g8.git") {
-    IO.withTemporaryDirectory { dir =>
-      launcher.run(Array("git@github.com:scala/scala-seed.g8.git", "--name=hello"), dir)
-      assert((dir / "hello" / "build.sbt").exists)
+  test("log scala/scala-seed.g8") {
+    val (r, err) = withErr {
+      IO.withTemporaryDirectory { dir =>
+        launcher.run(Array("scala/scala-seed.g8", "--name=hello"), dir)
+        assert((dir / "hello" / "build.sbt").exists)
+      }
     }
+    assert(!err.contains("SLF4J"))
   }
-   */
+
+  def withErr[A1](f: => A1): (A1, String) = {
+    val originalErr           = System.err
+    val byteArrayOutputStream = new ByteArrayOutputStream()
+    val inMemoryPrintStream   = new PrintStream(byteArrayOutputStream)
+    val result =
+      try {
+        System.setErr(inMemoryPrintStream)
+        val r = f
+        inMemoryPrintStream.flush()
+        r
+      } finally {
+        System.setErr(originalErr)
+      }
+    (result, byteArrayOutputStream.toString)
+  }
+
 }

project/Dependencies.scala

@@ -39,6 +39,7 @@ object Dependencies {
       case _            => "2.2.0"
     }
   }
+  val slf4jsimple  = "org.slf4j" % "slf4j-simple" % "1.7.36"
   val logback      = "ch.qos.logback" % "logback-classic" % "1.2.3"
   val coursier     = "io.get-coursier" %% "coursier" % "2.1.13"
   val launcherIntf = "org.scala-sbt" % "launcher-interface" % "1.4.4"