Setup SBT project

build.sbt

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+import sbtcrossproject.CrossPlugin.autoImport.crossProject
+import explicitdeps.ExplicitDepsPlugin.autoImport.moduleFilterRemoveValue
+import ScalazBuild._
+
+inThisBuild(
+  List(
+    organization := "dev.zio",
+    homepage := Some(url("https://zio.dev")),
+    licenses := List("Apache-2.0" -> url("http://www.apache.org/licenses/LICENSE-2.0")),
+    developers := List(
+      Developer(
+        "jdegoes",
+        "John De Goes",
+        "[email protected]",
+        url("http://degoes.net")
+      )
+    )
+  )
+)
+
+addCommandAlias("fmt", "all scalafmtSbt scalafmt test:scalafmt")
+addCommandAlias("check", "all scalafmtSbtCheck scalafmtCheck test:scalafmtCheck")
+addCommandAlias("testJVM", ";interopCatsJVM/test")
+addCommandAlias("testJS", ";interopCatsJS/test")
+
+pgpPublicRing := file("/tmp/public.asc")
+pgpSecretRing := file("/tmp/secret.asc")
+releaseEarlyWith := SonatypePublisher
+scmInfo := Some(
+  ScmInfo(url("https://github.com/zio/interop-cats/"), "scm:git:[email protected]:zio/interop-cats.git")
+)
+
+lazy val root = project
+  .in(file("."))
+  .enablePlugins(ScalaJSPlugin)
+  .aggregate(interopCatsJVM, interopCatsJS)
+  .settings(
+    skip in publish := true,
+    unusedCompileDependenciesFilter -= moduleFilter("org.scala-js", "scalajs-library")
+  )
+
+lazy val interopCats = crossProject(JSPlatform, JVMPlatform)
+  .in(file("interop-cats"))
+  .enablePlugins(BuildInfoPlugin)
+  .settings(stdSettings("zio-interop-cats"))
+  .settings(buildInfoSettings)
+  .settings(
+    libraryDependencies ++= Seq(
+      "dev.zio"       %%% "scalaz-zio"           % "1.0-RC6",
+      "org.typelevel" %%% "cats-effect"          % "1.3.1" % Optional,
+      "org.typelevel" %%% "cats-mtl-core"        % "0.5.0" % Optional,
+      "co.fs2"        %%% "fs2-core"             % "1.0.4" % Test,
+      "org.specs2"    %%% "specs2-core"          % "4.5.1" % Test,
+      "org.specs2"    %%% "specs2-scalacheck"    % "4.5.1" % Test,
+      "org.specs2"    %%% "specs2-matcher-extra" % "4.5.1" % Test
+    )
+  )
+
+val CatsScalaCheckVersion = Def.setting {
+  CrossVersion.partialVersion(scalaVersion.value) match {
+    case Some((2, v)) if v <= 12 =>
+      "1.13"
+    case _ =>
+      "1.14"
+  }
+}
+
+val ScalaCheckVersion = Def.setting {
+  CrossVersion.partialVersion(scalaVersion.value) match {
+    case Some((2, v)) if v <= 12 =>
+      "1.13.5"
+    case _ =>
+      "1.14.0"
+  }
+}
+
+def majorMinor(version: String) = version.split('.').take(2).mkString(".")
+
+val CatsScalaCheckShapelessVersion = Def.setting {
+  CrossVersion.partialVersion(scalaVersion.value) match {
+    case Some((2, v)) if v <= 12 =>
+      "1.1.8"
+    case _ =>
+      "1.2.0-1+7-a4ed6f38-SNAPSHOT" // TODO: Stable version
+  }
+}
+
+// Below is for the cats law spec
+// Separated due to binary incompatibility in scalacheck 1.13 vs 1.14
+// TODO remove it when https://github.com/typelevel/discipline/issues/52 is closed
+lazy val interopCatsJVM = interopCats.jvm
+  .settings(
+    resolvers += Resolver
+      .sonatypeRepo("snapshots"), // TODO: Remove once scalacheck-shapeless has a stable version for 2.13.0-M5
+    libraryDependencies ++= Seq(
+      "org.typelevel"              %% "cats-effect-laws"                                                 % "1.3.1"                              % Test,
+      "org.typelevel"              %% "cats-testkit"                                                     % "1.6.1"                              % Test,
+      "org.typelevel"              %% "cats-mtl-laws"                                                    % "0.5.0"                              % Test,
+      "com.github.alexarchambault" %% s"scalacheck-shapeless_${majorMinor(CatsScalaCheckVersion.value)}" % CatsScalaCheckShapelessVersion.value % Test
+    ),
+    dependencyOverrides += "org.scalacheck" %% "scalacheck" % ScalaCheckVersion.value % Test
+  )
+
+lazy val interopCatsJS = interopCats.js

interop-cats/js/src/main/scala/zio/interop/catsjs.scala

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+/*
+ * Copyright 2017-2019 John A. De Goes and the ZIO Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package zio.interop
+
+abstract class CatsPlatform {}
+
+abstract class CatsMtlPlatform {}