Remove direct dependency on circe-derivation

build.sbt

@@ -1007,8 +1007,8 @@ lazy val `fundamentals-json-circe` = project.in(file("fundamentals/fundamentals-
     ),
     libraryDependencies ++= { if (scalaVersion.value.startsWith("2.")) Seq(
       compilerPlugin("org.typelevel" % "kind-projector" % V.kind_projector cross CrossVersion.full),
-      "io.circe" %% "circe-derivation" % V.circe_derivation,
-      "org.scala-lang" % "scala-reflect" % scalaVersion.value % Provided
+      "org.scala-lang" % "scala-reflect" % scalaVersion.value % Provided,
+      "io.circe" %% "circe-derivation" % V.circe_derivation % Test
     ) else Seq.empty },
     libraryDependencies ++= {
       val version = scalaVersion.value
@@ -1164,7 +1164,9 @@ lazy val `fundamentals-json-circe` = project.in(file("fundamentals/fundamentals-
       )
       case (_, _) => Seq.empty
     } },
-    Test / packageDoc / publishArtifact := false
+    Test / packageDoc / publishArtifact := false,
+    Compile / libraryDependencySchemes += "io.circe" %% "circe-core" % VersionScheme.Always,
+    Compile / libraryDependencySchemes += "io.circe" %% "circe-core_sjs1" % VersionScheme.Always
   )
   .disablePlugins(AssemblyPlugin)
 
@@ -3524,13 +3526,13 @@ lazy val `logstage-core` = project.in(file("logstage/logstage-core"))
 
 lazy val `logstage-rendering-circe` = project.in(file("logstage/logstage-rendering-circe"))
   .dependsOn(
-    `fundamentals-json-circe` % "test->compile;compile->compile",
     `logstage-core` % "test->test;compile->compile"
   )
   .settings(
     libraryDependencies ++= Seq(
       "org.scala-lang.modules" %% "scala-collection-compat" % V.collection_compat,
       "org.scalatest" %% "scalatest" % V.scalatest % Test,
+      "io.circe" %% "circe-core" % V.circe,
       "org.typelevel" %% "jawn-parser" % V.jawn % Test,
       "io.circe" %% "circe-parser" % V.circe % Test,
       "io.circe" %% "circe-literal" % V.circe % Test,
@@ -4057,7 +4059,8 @@ lazy val `microsite` = project.in(file("doc/microsite"))
       "dev.zio" %% "zio-interop-cats" % V.zio_interop_cats excludeAll("dev.zio" %% "izumi-reflect"),
       "dev.zio" %% "izumi-reflect" % V.izumi_reflect,
       "org.tpolecat" %% "doobie-core" % V.doobie,
-      "org.tpolecat" %% "doobie-postgres" % V.doobie
+      "org.tpolecat" %% "doobie-postgres" % V.doobie,
+      "io.circe" %% "circe-generic" % V.circe
     ),
     libraryDependencies ++= { if (scalaVersion.value.startsWith("2.")) Seq(
       compilerPlugin("org.typelevel" % "kind-projector" % V.kind_projector cross CrossVersion.full)
@@ -4695,9 +4698,7 @@ lazy val `izumi` = (project in file("."))
     ThisBuild / developers := List(
               Developer(id = "7mind", name = "Septimal Mind", url = url("https://github.com/7mind"), email = "[email protected]"),
             ),
-    ThisBuild / scmInfo := Some(ScmInfo(url("https://github.com/7mind/izumi"), "scm:git:https://github.com/7mind/izumi.git")),
-    ThisBuild / libraryDependencySchemes += "io.circe" %% "circe-core" % VersionScheme.Always,
-    ThisBuild / libraryDependencySchemes += "io.circe" %% "circe-core_sjs1" % VersionScheme.Always
+    ThisBuild / scmInfo := Some(ScmInfo(url("https://github.com/7mind/izumi"), "scm:git:https://github.com/7mind/izumi.git"))
   )
   .disablePlugins(AssemblyPlugin)
   .aggregate(

doc/microsite/src/main/scala/com/example/Entity.scala

@@ -6,5 +6,5 @@ import io.circe.Encoder
 
 final case class Entity(id: UUID)
 object Entity {
-  implicit val enc: Encoder.AsObject[Entity] = io.circe.derivation.deriveEncoder[Entity]
+  implicit val enc: Encoder.AsObject[Entity] = io.circe.generic.semiauto.deriveEncoder[Entity]
 }

doc/microsite/src/main/tut/logstage/00_logstage.md

@@ -323,14 +323,14 @@ Example:
 
 ```scala mdoc:reset:to-string
 import io.circe.Codec
-import io.circe.derivation
+import io.circe.generic.semiauto
 import logstage.LogstageCodec
 import logstage.circe.LogstageCirceCodec
 
 final case class KV(key: String, value: Int)
 
 object KV {
-  implicit val circeCodec: Codec[KV] = derivation.deriveCodec[KV]
+  implicit val circeCodec: Codec[KV] = semiauto.deriveCodec[KV]
   implicit val logstageCodec: LogstageCodec[KV] = LogstageCirceCodec.derived[KV]
 }
 ```
@@ -394,4 +394,4 @@ You might need to do the following in order for the adapter to properly initiali
 ```scala
 SLF4JBridgeHandler.removeHandlersForRootLogger()
 SLF4JBridgeHandler.install()
-```
+```

fundamentals/fundamentals-reflection/src/main/scala-2/izumi/fundamentals/reflection/CirceTool.scala → fundamentals/fundamentals-json-circe/src/main/scala-2/izumi/fundamentals/json/circe/CirceTool.scala

@@ -1,4 +1,4 @@
-package izumi.fundamentals.reflection
+package izumi.fundamentals.json.circe
 
 import scala.collection.mutable
 import scala.language.experimental.macros
@@ -9,7 +9,7 @@ object CirceTool {
 }
 
 class CirceToolMacro(val c: blackbox.Context) {
-  import c.universe._
+  import c.universe.*
 
   @inline def make[T: c.WeakTypeTag](): c.Expr[Unit] = {
     val all = new mutable.HashSet[Type]()

fundamentals/fundamentals-json-circe/src/main/scala-2/izumi/fundamentals/json/circe/MaterializeDerivationMacros.scala

@@ -1,13 +1,12 @@
 package izumi.fundamentals.json.circe
 
-import io.circe.derivation.DerivationMacros
 import io.circe.{Codec, Decoder, Encoder}
 
 import scala.language.experimental.macros
 import scala.reflect.macros.blackbox
 
 // TODO: merge upstream, also with @JsonCodec
-final class MaterializeDerivationMacros(override val c: blackbox.Context) extends DerivationMacros(c) {
+final class MaterializeDerivationMacros(val c: blackbox.Context) {
   import c.universe.*
 
   def materializeEncoderImpl[A: c.WeakTypeTag]: c.Expr[DerivationDerivedEncoder[A]] =

fundamentals/fundamentals-json-circe/src/main/scala-2/izumi/fundamentals/json/circe/WithCirce.scala

@@ -3,6 +3,9 @@ package izumi.fundamentals.json.circe
 import io.circe.Codec
 
 /**
+  * Requires library dependency on `"io.circe" %% "circe-derivation" % "0.13.0-M5"`
+  * or later (NOT brought in as a dependency automatically)
+  *
   * Provides circe codecs for case classes and sealed traits
   *
   * {{{
@@ -38,6 +41,3 @@ abstract class WithCirce[A]()(implicit derivedCodec: DerivationDerivedCodec[A])
 
   implicit val codec: Codec.AsObject[A] = derivedCodec.value
 }
-
-
-

fundamentals/fundamentals-json-circe/src/main/scala/izumi/fundamentals/json/flat/JsonFlattener.scala

@@ -7,8 +7,8 @@ import izumi.functional.IzEither.EitherBiAggregate
 import scala.annotation.switch
 import scala.collection.mutable.ArrayBuffer
 import scala.util.control.NonFatal
-import JsonFlattener._
-import PathElement._
+import JsonFlattener.*
+import PathElement.*
 import izumi.fundamentals.platform.strings.IzEscape
 
 class JsonFlattener {

project/Deps.sc

@@ -77,9 +77,7 @@ object Izumi {
     final val circe_parser = Library("io.circe", "circe-parser", V.circe, LibraryType.Auto)
     final val circe_literal = Library("io.circe", "circe-literal", V.circe, LibraryType.Auto)
     final val circe_generic = Library("io.circe", "circe-generic", V.circe, LibraryType.Auto)
-    final val circe_derivation_scala2 = Library("io.circe", "circe-derivation", V.circe_derivation, LibraryType.Auto) in Scope.Compile.all.scalaVersion(
-      ScalaVersionScope.AllScala2
-    )
+    final val circe_derivation_scala2 = Library("io.circe", "circe-derivation", V.circe_derivation, LibraryType.Auto)
 
     final val discipline = Library("org.typelevel", "discipline-core", V.discipline, LibraryType.Auto) in Scope.Test.all
     final val discipline_scalatest = Library("org.typelevel", "discipline-scalatest", V.discipline_scalatest, LibraryType.Auto) in Scope.Test.all
@@ -282,11 +280,6 @@ object Izumi {
           Developer(id = "7mind", name = "Septimal Mind", url = url("https://github.com/7mind"), email = "[email protected]"),
         )""".raw,
         "scmInfo" in SettingScope.Build := """Some(ScmInfo(url("https://github.com/7mind/izumi"), "scm:git:https://github.com/7mind/izumi.git"))""".raw,
-//        workaround for:
-//        java.lang.RuntimeException: found version conflict(s) in library dependencies; some are suspected to be binary incompatible:
-//          +- io.circe:circe-derivation_2.12:0.13.0-M5           (depends on 0.13.0)
-        "libraryDependencySchemes" in SettingScope.Build += s""""${circe_core.group}" %% "${circe_core.artifact}" % VersionScheme.Always""".raw,
-        "libraryDependencySchemes" in SettingScope.Build += s""""${circe_core.group}" %% "${circe_core.artifact}_sjs1" % VersionScheme.Always""".raw,
       )
 
       final val sharedSettings = Defaults.SbtMetaSharedOptions ++ outOfSource ++ crossScalaSources ++ Seq(
@@ -341,6 +334,7 @@ object Izumi {
       final val typesafeConfig = ArtifactId("fundamentals-typesafe-config")
       final val reflection = ArtifactId("fundamentals-reflection")
       final val jsonCirce = ArtifactId("fundamentals-json-circe")
+      final val jsonCirceLegacy = ArtifactId("fundamentals-json-circe-legacy")
 
       final lazy val basics = Seq(
         platform,
@@ -464,15 +458,22 @@ object Izumi {
       Artifact(
         name = Projects.fundamentals.jsonCirce,
         libs = Seq(
+          scala_reflect,
           circe_core in Scope.Compile.all,
           circe_generic in Scope.Compile.all.scalaVersion(ScalaVersionScope.AllScala3),
-          circe_derivation_scala2,
-          scala_reflect,
         ) ++ Seq(
+          circe_derivation_scala2 in Scope.Test.all.scalaVersion(ScalaVersionScope.AllScala2),
           jawn in Scope.Test.all,
           circe_literal in Scope.Test.all,
         ),
         depends = Seq(Projects.fundamentals.platform),
+        settings = Seq(
+          //        workaround for:
+          //        java.lang.RuntimeException: found version conflict(s) in library dependencies; some are suspected to be binary incompatible:
+          //          +- io.circe:circe-derivation_2.12:0.13.0-M5           (depends on 0.13.0)
+          "libraryDependencySchemes" in SettingScope.Compile += s""""${circe_core.group}" %% "${circe_core.artifact}" % VersionScheme.Always""".raw,
+          "libraryDependencySchemes" in SettingScope.Compile += s""""${circe_core.group}" %% "${circe_core.artifact}_sjs1" % VersionScheme.Always""".raw,
+        ),
       ),
       Artifact(
         name = Projects.fundamentals.reflection,
@@ -620,13 +621,14 @@ object Izumi {
       Artifact(
         name = Projects.logstage.renderingCirce,
         libs = Seq(
+          circe_core in Scope.Compile.all,
           jawn in Scope.Test.all,
           circe_parser in Scope.Test.all,
           circe_literal in Scope.Test.all,
           circe_generic in Scope.Test.all,
           zio_core in Scope.Test.all,
         ),
-        depends = Seq(Projects.fundamentals.jsonCirce).map(_ in Scope.Compile.all) ++ Seq(Projects.logstage.core).map(_ tin Scope.Compile.all),
+        depends = Seq(Projects.logstage.core).map(_ tin Scope.Compile.all),
       ),
       Artifact(
         name = Projects.logstage.adapterSlf4j,
@@ -658,7 +660,9 @@ object Izumi {
     artifacts = Seq(
       Artifact(
         name = Projects.docs.microsite,
-        libs = (allMonads ++ doobie_all).map(_ in Scope.Compile.all),
+        libs = (allMonads ++ doobie_all).map(_ in Scope.Compile.all) ++ Seq(
+          circe_generic in Scope.Compile.all
+        ),
         depends = all.flatMap(_.artifacts).map(_.name in Scope.Compile.all).distinct,
         settings = Seq(
           // ignore microsite in IDEA