diff --git a/.travis.yml b/.travis.yml
index 75061c45b..cbe8bcc2a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,11 +12,12 @@ stages:
     if: (branch = master AND type = push) OR (tag IS present)
 jobs:
   include:
-    - env: SBT_COURSIER=1 SBT_COURSIER_TEST_GROUP=1
-    - env: SBT_COURSIER=1 SBT_COURSIER_TEST_GROUP=2
+    - env: SBT_COURSIER=1 TEST_GROUP=1
+    - env: SBT_COURSIER=1 TEST_GROUP=2
     - env: SBT_SHADING=1
     - env: SBT_PGP_COURSIER=1
-    - env: LM_COURSIER=1
+    - env: LM_COURSIER=1 TEST_GROUP=1
+    - env: LM_COURSIER=1 TEST_GROUP=2
     - stage: release
       script: sbt ci-release
 branches:
diff --git a/build.sbt b/build.sbt
index e3593c3e1..35d254077 100644
--- a/build.sbt
+++ b/build.sbt
@@ -19,7 +19,7 @@ val coursierVersion = "1.1.0-M8"
 
 lazy val `lm-coursier` = project
   .in(file("modules/lm-coursier"))
-  .enablePlugins(ContrabandPlugin, JsonCodecPlugin)
+  .enablePlugins(ContrabandPlugin)
   .settings(
     shared,
     libraryDependencies ++= Seq(
@@ -40,10 +40,20 @@ lazy val `lm-coursier` = project
     contrabandFormatsForType in generateContrabands in Compile := DatatypeConfig.getFormats
   )
 
+lazy val `sbt-coursier-shared` = project
+  .in(file("modules/sbt-coursier-shared"))
+  .enablePlugins(ScriptedPlugin)
+  .dependsOn(`lm-coursier`)
+  .settings(
+    plugin,
+    libraryDependencies += "com.lihaoyi" %% "utest" % "0.6.4" % Test,
+    testFrameworks += new TestFramework("utest.runner.Framework")
+  )
+
 lazy val `sbt-lm-coursier` = project
   .in(file("modules/sbt-lm-coursier"))
   .enablePlugins(ScriptedPlugin)
-  .dependsOn(`lm-coursier`)
+  .dependsOn(`sbt-coursier-shared`)
   .settings(
     plugin,
     sbtTestDirectory := sbtTestDirectory.in(`sbt-coursier`).value,
@@ -53,17 +63,16 @@ lazy val `sbt-lm-coursier` = project
       // TODO Get those automatically
       // (but shouldn't scripted itself handle that…?)
        publishLocal.in(`lm-coursier`).value
+       publishLocal.in(`sbt-coursier-shared`).value
      }
    )
 
 lazy val `sbt-coursier` = project
   .in(file("modules/sbt-coursier"))
   .enablePlugins(ScriptedPlugin)
-  .dependsOn(`lm-coursier`)
+  .dependsOn(`sbt-coursier-shared`)
   .settings(
     plugin,
-    libraryDependencies += "com.lihaoyi" %% "utest" % "0.6.4" % Test,
-    testFrameworks += new TestFramework("utest.runner.Framework"),
     libraryDependencies +="io.get-coursier" %% "coursier-scalaz-interop" % coursierVersion,
     scriptedDependencies := {
       scriptedDependencies.value
@@ -71,6 +80,7 @@ lazy val `sbt-coursier` = project
       // TODO Get dependency projects automatically
       // (but shouldn't scripted itself handle that…?)
       publishLocal.in(`lm-coursier`).value
+      publishLocal.in(`sbt-coursier-shared`).value
     }
   )
 
@@ -120,6 +130,7 @@ lazy val `sbt-coursier-root` = project
   .aggregate(
     `lm-coursier`,
     `sbt-coursier`,
+    `sbt-coursier-shared`,
     `sbt-lm-coursier`,
     `sbt-pgp-coursier`,
     `sbt-shading`
diff --git a/modules/lm-coursier/src/main/contraband-scala/coursier/lmcoursier/CoursierConfiguration.scala b/modules/lm-coursier/src/main/contraband-scala/coursier/lmcoursier/CoursierConfiguration.scala
index 138d8d99a..66bb85f46 100644
--- a/modules/lm-coursier/src/main/contraband-scala/coursier/lmcoursier/CoursierConfiguration.scala
+++ b/modules/lm-coursier/src/main/contraband-scala/coursier/lmcoursier/CoursierConfiguration.scala
@@ -7,28 +7,33 @@ package coursier.lmcoursier
 final class CoursierConfiguration private (
   val log: Option[xsbti.Logger],
   val resolvers: Vector[sbt.librarymanagement.Resolver],
-  val otherResolvers: Vector[sbt.librarymanagement.Resolver],
   val reorderResolvers: Boolean,
   val parallelDownloads: Int,
   val maxIterations: Int,
   val sbtScalaOrganization: Option[String],
   val sbtScalaVersion: Option[String],
-  val sbtScalaJars: Vector[java.io.File]) extends Serializable {
+  val sbtScalaJars: Vector[java.io.File],
+  val interProjectDependencies: Vector[coursier.core.Project],
+  val excludeDependencies: Vector[(String, String)],
+  val fallbackDependencies: Vector[coursier.lmcoursier.FallbackDependency],
+  val autoScalaLibrary: Boolean,
+  val hasClassifiers: Boolean,
+  val classifiers: Vector[String]) extends Serializable {
   
-  private def this() = this(None, sbt.librarymanagement.Resolver.defaults, Vector.empty, true, 6, 100, None, None, Vector.empty)
+  private def this() = this(None, sbt.librarymanagement.Resolver.defaults, true, 6, 100, None, None, Vector.empty, Vector.empty, Vector.empty, Vector.empty, true, false, Vector.empty)
   
   override def equals(o: Any): Boolean = o match {
-    case x: CoursierConfiguration => (this.log == x.log) && (this.resolvers == x.resolvers) && (this.otherResolvers == x.otherResolvers) && (this.reorderResolvers == x.reorderResolvers) && (this.parallelDownloads == x.parallelDownloads) && (this.maxIterations == x.maxIterations) && (this.sbtScalaOrganization == x.sbtScalaOrganization) && (this.sbtScalaVersion == x.sbtScalaVersion) && (this.sbtScalaJars == x.sbtScalaJars)
+    case x: CoursierConfiguration => (this.log == x.log) && (this.resolvers == x.resolvers) && (this.reorderResolvers == x.reorderResolvers) && (this.parallelDownloads == x.parallelDownloads) && (this.maxIterations == x.maxIterations) && (this.sbtScalaOrganization == x.sbtScalaOrganization) && (this.sbtScalaVersion == x.sbtScalaVersion) && (this.sbtScalaJars == x.sbtScalaJars) && (this.interProjectDependencies == x.interProjectDependencies) && (this.excludeDependencies == x.excludeDependencies) && (this.fallbackDependencies == x.fallbackDependencies) && (this.autoScalaLibrary == x.autoScalaLibrary) && (this.hasClassifiers == x.hasClassifiers) && (this.classifiers == x.classifiers)
     case _ => false
   }
   override def hashCode: Int = {
-    37 * (37 * (37 * (37 * (37 * (37 * (37 * (37 * (37 * (37 * (17 + "coursier.lmcoursier.CoursierConfiguration".##) + log.##) + resolvers.##) + otherResolvers.##) + reorderResolvers.##) + parallelDownloads.##) + maxIterations.##) + sbtScalaOrganization.##) + sbtScalaVersion.##) + sbtScalaJars.##)
+    37 * (37 * (37 * (37 * (37 * (37 * (37 * (37 * (37 * (37 * (37 * (37 * (37 * (37 * (37 * (17 + "coursier.lmcoursier.CoursierConfiguration".##) + log.##) + resolvers.##) + reorderResolvers.##) + parallelDownloads.##) + maxIterations.##) + sbtScalaOrganization.##) + sbtScalaVersion.##) + sbtScalaJars.##) + interProjectDependencies.##) + excludeDependencies.##) + fallbackDependencies.##) + autoScalaLibrary.##) + hasClassifiers.##) + classifiers.##)
   }
   override def toString: String = {
-    "CoursierConfiguration(" + log + ", " + resolvers + ", " + otherResolvers + ", " + reorderResolvers + ", " + parallelDownloads + ", " + maxIterations + ", " + sbtScalaOrganization + ", " + sbtScalaVersion + ", " + sbtScalaJars + ")"
+    "CoursierConfiguration(" + log + ", " + resolvers + ", " + reorderResolvers + ", " + parallelDownloads + ", " + maxIterations + ", " + sbtScalaOrganization + ", " + sbtScalaVersion + ", " + sbtScalaJars + ", " + interProjectDependencies + ", " + excludeDependencies + ", " + fallbackDependencies + ", " + autoScalaLibrary + ", " + hasClassifiers + ", " + classifiers + ")"
   }
-  private[this] def copy(log: Option[xsbti.Logger] = log, resolvers: Vector[sbt.librarymanagement.Resolver] = resolvers, otherResolvers: Vector[sbt.librarymanagement.Resolver] = otherResolvers, reorderResolvers: Boolean = reorderResolvers, parallelDownloads: Int = parallelDownloads, maxIterations: Int = maxIterations, sbtScalaOrganization: Option[String] = sbtScalaOrganization, sbtScalaVersion: Option[String] = sbtScalaVersion, sbtScalaJars: Vector[java.io.File] = sbtScalaJars): CoursierConfiguration = {
-    new CoursierConfiguration(log, resolvers, otherResolvers, reorderResolvers, parallelDownloads, maxIterations, sbtScalaOrganization, sbtScalaVersion, sbtScalaJars)
+  private[this] def copy(log: Option[xsbti.Logger] = log, resolvers: Vector[sbt.librarymanagement.Resolver] = resolvers, reorderResolvers: Boolean = reorderResolvers, parallelDownloads: Int = parallelDownloads, maxIterations: Int = maxIterations, sbtScalaOrganization: Option[String] = sbtScalaOrganization, sbtScalaVersion: Option[String] = sbtScalaVersion, sbtScalaJars: Vector[java.io.File] = sbtScalaJars, interProjectDependencies: Vector[coursier.core.Project] = interProjectDependencies, excludeDependencies: Vector[(String, String)] = excludeDependencies, fallbackDependencies: Vector[coursier.lmcoursier.FallbackDependency] = fallbackDependencies, autoScalaLibrary: Boolean = autoScalaLibrary, hasClassifiers: Boolean = hasClassifiers, classifiers: Vector[String] = classifiers): CoursierConfiguration = {
+    new CoursierConfiguration(log, resolvers, reorderResolvers, parallelDownloads, maxIterations, sbtScalaOrganization, sbtScalaVersion, sbtScalaJars, interProjectDependencies, excludeDependencies, fallbackDependencies, autoScalaLibrary, hasClassifiers, classifiers)
   }
   def withLog(log: Option[xsbti.Logger]): CoursierConfiguration = {
     copy(log = log)
@@ -39,9 +44,6 @@ final class CoursierConfiguration private (
   def withResolvers(resolvers: Vector[sbt.librarymanagement.Resolver]): CoursierConfiguration = {
     copy(resolvers = resolvers)
   }
-  def withOtherResolvers(otherResolvers: Vector[sbt.librarymanagement.Resolver]): CoursierConfiguration = {
-    copy(otherResolvers = otherResolvers)
-  }
   def withReorderResolvers(reorderResolvers: Boolean): CoursierConfiguration = {
     copy(reorderResolvers = reorderResolvers)
   }
@@ -66,10 +68,28 @@ final class CoursierConfiguration private (
   def withSbtScalaJars(sbtScalaJars: Vector[java.io.File]): CoursierConfiguration = {
     copy(sbtScalaJars = sbtScalaJars)
   }
+  def withInterProjectDependencies(interProjectDependencies: Vector[coursier.core.Project]): CoursierConfiguration = {
+    copy(interProjectDependencies = interProjectDependencies)
+  }
+  def withExcludeDependencies(excludeDependencies: Vector[(String, String)]): CoursierConfiguration = {
+    copy(excludeDependencies = excludeDependencies)
+  }
+  def withFallbackDependencies(fallbackDependencies: Vector[coursier.lmcoursier.FallbackDependency]): CoursierConfiguration = {
+    copy(fallbackDependencies = fallbackDependencies)
+  }
+  def withAutoScalaLibrary(autoScalaLibrary: Boolean): CoursierConfiguration = {
+    copy(autoScalaLibrary = autoScalaLibrary)
+  }
+  def withHasClassifiers(hasClassifiers: Boolean): CoursierConfiguration = {
+    copy(hasClassifiers = hasClassifiers)
+  }
+  def withClassifiers(classifiers: Vector[String]): CoursierConfiguration = {
+    copy(classifiers = classifiers)
+  }
 }
 object CoursierConfiguration {
   
   def apply(): CoursierConfiguration = new CoursierConfiguration()
-  def apply(log: Option[xsbti.Logger], resolvers: Vector[sbt.librarymanagement.Resolver], otherResolvers: Vector[sbt.librarymanagement.Resolver], reorderResolvers: Boolean, parallelDownloads: Int, maxIterations: Int, sbtScalaOrganization: Option[String], sbtScalaVersion: Option[String], sbtScalaJars: Vector[java.io.File]): CoursierConfiguration = new CoursierConfiguration(log, resolvers, otherResolvers, reorderResolvers, parallelDownloads, maxIterations, sbtScalaOrganization, sbtScalaVersion, sbtScalaJars)
-  def apply(log: xsbti.Logger, resolvers: Vector[sbt.librarymanagement.Resolver], otherResolvers: Vector[sbt.librarymanagement.Resolver], reorderResolvers: Boolean, parallelDownloads: Int, maxIterations: Int, sbtScalaOrganization: String, sbtScalaVersion: String, sbtScalaJars: Vector[java.io.File]): CoursierConfiguration = new CoursierConfiguration(Option(log), resolvers, otherResolvers, reorderResolvers, parallelDownloads, maxIterations, Option(sbtScalaOrganization), Option(sbtScalaVersion), sbtScalaJars)
+  def apply(log: Option[xsbti.Logger], resolvers: Vector[sbt.librarymanagement.Resolver], reorderResolvers: Boolean, parallelDownloads: Int, maxIterations: Int, sbtScalaOrganization: Option[String], sbtScalaVersion: Option[String], sbtScalaJars: Vector[java.io.File], interProjectDependencies: Vector[coursier.core.Project], excludeDependencies: Vector[(String, String)], fallbackDependencies: Vector[coursier.lmcoursier.FallbackDependency], autoScalaLibrary: Boolean, hasClassifiers: Boolean, classifiers: Vector[String]): CoursierConfiguration = new CoursierConfiguration(log, resolvers, reorderResolvers, parallelDownloads, maxIterations, sbtScalaOrganization, sbtScalaVersion, sbtScalaJars, interProjectDependencies, excludeDependencies, fallbackDependencies, autoScalaLibrary, hasClassifiers, classifiers)
+  def apply(log: xsbti.Logger, resolvers: Vector[sbt.librarymanagement.Resolver], reorderResolvers: Boolean, parallelDownloads: Int, maxIterations: Int, sbtScalaOrganization: String, sbtScalaVersion: String, sbtScalaJars: Vector[java.io.File], interProjectDependencies: Vector[coursier.core.Project], excludeDependencies: Vector[(String, String)], fallbackDependencies: Vector[coursier.lmcoursier.FallbackDependency], autoScalaLibrary: Boolean, hasClassifiers: Boolean, classifiers: Vector[String]): CoursierConfiguration = new CoursierConfiguration(Option(log), resolvers, reorderResolvers, parallelDownloads, maxIterations, Option(sbtScalaOrganization), Option(sbtScalaVersion), sbtScalaJars, interProjectDependencies, excludeDependencies, fallbackDependencies, autoScalaLibrary, hasClassifiers, classifiers)
 }
diff --git a/modules/lm-coursier/src/main/contraband-scala/coursier/lmcoursier/CoursierConfigurationFormats.scala b/modules/lm-coursier/src/main/contraband-scala/coursier/lmcoursier/CoursierConfigurationFormats.scala
deleted file mode 100644
index f394dfb87..000000000
--- a/modules/lm-coursier/src/main/contraband-scala/coursier/lmcoursier/CoursierConfigurationFormats.scala
+++ /dev/null
@@ -1,43 +0,0 @@
-/**
- * This code is generated using [[http://www.scala-sbt.org/contraband/ sbt-contraband]].
- */
-
-// DO NOT EDIT MANUALLY
-package coursier.lmcoursier
-import _root_.sjsonnew.{ Unbuilder, Builder, JsonFormat, deserializationError }
-trait CoursierConfigurationFormats { self: sbt.internal.librarymanagement.formats.LoggerFormat with sbt.librarymanagement.ResolverFormats with sjsonnew.BasicJsonProtocol =>
-implicit lazy val CoursierConfigurationFormat: JsonFormat[coursier.lmcoursier.CoursierConfiguration] = new JsonFormat[coursier.lmcoursier.CoursierConfiguration] {
-  override def read[J](jsOpt: Option[J], unbuilder: Unbuilder[J]): coursier.lmcoursier.CoursierConfiguration = {
-    jsOpt match {
-      case Some(js) =>
-      unbuilder.beginObject(js)
-      val log = unbuilder.readField[Option[xsbti.Logger]]("log")
-      val resolvers = unbuilder.readField[Vector[sbt.librarymanagement.Resolver]]("resolvers")
-      val otherResolvers = unbuilder.readField[Vector[sbt.librarymanagement.Resolver]]("otherResolvers")
-      val reorderResolvers = unbuilder.readField[Boolean]("reorderResolvers")
-      val parallelDownloads = unbuilder.readField[Int]("parallelDownloads")
-      val maxIterations = unbuilder.readField[Int]("maxIterations")
-      val sbtScalaOrganization = unbuilder.readField[Option[String]]("sbtScalaOrganization")
-      val sbtScalaVersion = unbuilder.readField[Option[String]]("sbtScalaVersion")
-      val sbtScalaJars = unbuilder.readField[Vector[java.io.File]]("sbtScalaJars")
-      unbuilder.endObject()
-      coursier.lmcoursier.CoursierConfiguration(log, resolvers, otherResolvers, reorderResolvers, parallelDownloads, maxIterations, sbtScalaOrganization, sbtScalaVersion, sbtScalaJars)
-      case None =>
-      deserializationError("Expected JsObject but found None")
-    }
-  }
-  override def write[J](obj: coursier.lmcoursier.CoursierConfiguration, builder: Builder[J]): Unit = {
-    builder.beginObject()
-    builder.addField("log", obj.log)
-    builder.addField("resolvers", obj.resolvers)
-    builder.addField("otherResolvers", obj.otherResolvers)
-    builder.addField("reorderResolvers", obj.reorderResolvers)
-    builder.addField("parallelDownloads", obj.parallelDownloads)
-    builder.addField("maxIterations", obj.maxIterations)
-    builder.addField("sbtScalaOrganization", obj.sbtScalaOrganization)
-    builder.addField("sbtScalaVersion", obj.sbtScalaVersion)
-    builder.addField("sbtScalaJars", obj.sbtScalaJars)
-    builder.endObject()
-  }
-}
-}
diff --git a/modules/lm-coursier/src/main/contraband/lm-coursier.json b/modules/lm-coursier/src/main/contraband/lm-coursier.json
index b86485a59..8a96a16cc 100644
--- a/modules/lm-coursier/src/main/contraband/lm-coursier.json
+++ b/modules/lm-coursier/src/main/contraband/lm-coursier.json
@@ -19,12 +19,6 @@
           "default": "sbt.librarymanagement.Resolver.defaults",
           "since": "0.0.1"
         },
-        {
-          "name": "otherResolvers",
-          "type": "sbt.librarymanagement.Resolver*",
-          "default": "Vector.empty",
-          "since": "0.0.1"
-        },
         {
           "name": "reorderResolvers",
           "type": "Boolean",
@@ -60,6 +54,42 @@
           "type": "java.io.File*",
           "default": "Vector.empty",
           "since": "0.0.1"
+        },
+        {
+          "name": "interProjectDependencies",
+          "type": "coursier.core.Project*",
+          "default": "Vector.empty",
+          "since": "0.0.1"
+        },
+        {
+          "name": "excludeDependencies",
+          "type": "(String, String)*",
+          "default": "Vector.empty",
+          "since": "0.0.1"
+        },
+        {
+          "name": "fallbackDependencies",
+          "type": "coursier.lmcoursier.FallbackDependency*",
+          "default": "Vector.empty",
+          "since": "0.0.1"
+        },
+        {
+          "name": "autoScalaLibrary",
+          "type": "Boolean",
+          "default": "true",
+          "since": "0.0.1"
+        },
+        {
+          "name": "hasClassifiers",
+          "type": "Boolean",
+          "default": "false",
+          "since": "0.0.1"
+        },
+        {
+          "name": "classifiers",
+          "type": "String*",
+          "default": "Vector.empty",
+          "since": "0.0.1"
         }
       ]
     }
diff --git a/modules/lm-coursier/src/main/scala/coursier/lmcoursier/CoursierDependencyResolution.scala b/modules/lm-coursier/src/main/scala/coursier/lmcoursier/CoursierDependencyResolution.scala
index 6698042cd..73ace8ad6 100644
--- a/modules/lm-coursier/src/main/scala/coursier/lmcoursier/CoursierDependencyResolution.scala
+++ b/modules/lm-coursier/src/main/scala/coursier/lmcoursier/CoursierDependencyResolution.scala
@@ -2,8 +2,8 @@ package coursier.lmcoursier
 
 import java.io.{File, OutputStreamWriter}
 
-import _root_.coursier.{Artifact, Cache, CachePolicy, FileError, Organization, Project, Resolution, TermDisplay, organizationString}
-import _root_.coursier.core.Configuration
+import _root_.coursier.{Artifact, Cache, CachePolicy, FileError, Organization, Resolution, TermDisplay, organizationString}
+import _root_.coursier.core.{Classifier, Configuration, ModuleName}
 import _root_.coursier.ivy.IvyRepository
 import sbt.internal.librarymanagement.IvySbt
 import sbt.librarymanagement._
@@ -19,6 +19,14 @@ class CoursierDependencyResolution(conf: CoursierConfiguration) extends Dependen
     else
       conf.resolvers
 
+  private lazy val excludeDependencies = conf
+    .excludeDependencies
+    .map {
+      case (strOrg, strName) =>
+        (Organization(strOrg), ModuleName(strName))
+    }
+    .toSet
+
   def moduleDescriptor(moduleSetting: ModuleDescriptorConfiguration): CoursierModuleDescriptor =
     CoursierModuleDescriptor(moduleSetting, conf)
 
@@ -66,6 +74,12 @@ class CoursierDependencyResolution(conf: CoursierConfiguration) extends Dependen
 
     val ivyProperties = ResolutionParams.defaultIvyProperties()
 
+    val classifiers =
+      if (conf.hasClassifiers)
+        Some(conf.classifiers.map(Classifier(_)))
+      else
+        None
+
     val mainRepositories = resolvers
       .flatMap { resolver =>
         FromSbt.repository(
@@ -85,16 +99,24 @@ class CoursierDependencyResolution(conf: CoursierConfiguration) extends Dependen
           withArtifacts = false
         )
 
-    val interProjectDependencies: Seq[Project] = Nil // TODO Don't use Nil here
-    val interProjectRepo = InterProjectRepository(interProjectDependencies)
+    val interProjectRepo = InterProjectRepository(conf.interProjectDependencies)
 
     val internalRepositories = globalPluginsRepos :+ interProjectRepo
 
-    val dependencies = module0.dependencies.flatMap { d =>
-      // crossVersion already taken into account, wiping it here
-      val d0 = d.withCrossVersion(CrossVersion.Disabled())
-      FromSbt.dependencies(d0, sv, sbv)
-    }
+    val dependencies = module0
+      .dependencies
+      .flatMap { d =>
+        // crossVersion already taken into account, wiping it here
+        val d0 = d.withCrossVersion(CrossVersion.Disabled())
+        FromSbt.dependencies(d0, sv, sbv)
+      }
+      .map {
+        case (config, dep) =>
+          val dep0 = dep.copy(
+            exclusions = dep.exclusions ++ excludeDependencies
+          )
+          (config, dep0)
+      }
 
     val configGraphs = Inputs.ivyGraphs(
       Inputs.configExtends(module0.configurations)
@@ -102,12 +124,12 @@ class CoursierDependencyResolution(conf: CoursierConfiguration) extends Dependen
 
     val resolutionParams = ResolutionParams(
       dependencies = dependencies,
-      fallbackDependencies = Nil,
+      fallbackDependencies = conf.fallbackDependencies,
       configGraphs = configGraphs,
-      autoScalaLib = true,
+      autoScalaLib = conf.autoScalaLibrary,
       mainRepositories = mainRepositories,
       parentProjectCache = Map.empty,
-      interProjectDependencies = interProjectDependencies,
+      interProjectDependencies = conf.interProjectDependencies,
       internalRepositories = internalRepositories,
       userEnabledProfiles = Set.empty,
       userForceVersions = Map.empty,
@@ -127,7 +149,7 @@ class CoursierDependencyResolution(conf: CoursierConfiguration) extends Dependen
 
     def artifactsParams(resolutions: Map[Set[Configuration], Resolution]) =
       ArtifactsParams(
-        classifiers = None,
+        classifiers = classifiers,
         res = resolutions.values.toSeq,
         includeSignatures = false,
         parallelDownloads = conf.parallelDownloads,
@@ -155,7 +177,7 @@ class CoursierDependencyResolution(conf: CoursierConfiguration) extends Dependen
       UpdateParams(
         shadedConfigOpt = None,
         artifacts = artifacts,
-        classifiers = None,
+        classifiers = classifiers,
         configs = configs,
         dependencies = dependencies,
         res = resolutions,
diff --git a/modules/lm-coursier/src/main/scala/coursier/lmcoursier/CoursierLibraryManagementCodec.scala b/modules/lm-coursier/src/main/scala/coursier/lmcoursier/CoursierLibraryManagementCodec.scala
deleted file mode 100644
index b5cfc104d..000000000
--- a/modules/lm-coursier/src/main/scala/coursier/lmcoursier/CoursierLibraryManagementCodec.scala
+++ /dev/null
@@ -1,13 +0,0 @@
-package coursier.lmcoursier
-
-import sbt.librarymanagement.LibraryManagementCodec
-
-trait CoursierLibraryManagementCodec
-    extends sjsonnew.BasicJsonProtocol
-    with LibraryManagementCodec
-    // with sbt.internal.librarymanagement.formats.GlobalLockFormat
-    with sbt.internal.librarymanagement.formats.LoggerFormat
-    with sbt.librarymanagement.ResolverFormats
-    with CoursierConfigurationFormats
-
-object CoursierLibraryManagementCodec extends CoursierLibraryManagementCodec
diff --git a/modules/lm-coursier/src/main/scala/coursier/lmcoursier/CoursierModuleDescriptor.scala b/modules/lm-coursier/src/main/scala/coursier/lmcoursier/CoursierModuleDescriptor.scala
index 4e8311045..f30bf9732 100644
--- a/modules/lm-coursier/src/main/scala/coursier/lmcoursier/CoursierModuleDescriptor.scala
+++ b/modules/lm-coursier/src/main/scala/coursier/lmcoursier/CoursierModuleDescriptor.scala
@@ -1,7 +1,6 @@
 package coursier.lmcoursier
 
 import sbt.librarymanagement._
-import sjsonnew.support.murmurhash.Hasher
 
 final case class CoursierModuleDescriptor(
   descriptor: ModuleDescriptorConfiguration,
@@ -17,8 +16,6 @@ final case class CoursierModuleDescriptor(
   def moduleSettings: CoursierModuleSettings =
     CoursierModuleSettings()
 
-  lazy val extraInputHash: Long = {
-    import CustomLibraryManagementCodec._
-    Hasher.hash(conf).toOption.fold(0L)(_.toLong)
-  }
+  lazy val extraInputHash: Long =
+    conf.##
 }
diff --git a/modules/lm-coursier/src/main/scala/coursier/lmcoursier/CustomLibraryManagementCodec.scala b/modules/lm-coursier/src/main/scala/coursier/lmcoursier/CustomLibraryManagementCodec.scala
deleted file mode 100644
index 0a608c129..000000000
--- a/modules/lm-coursier/src/main/scala/coursier/lmcoursier/CustomLibraryManagementCodec.scala
+++ /dev/null
@@ -1,37 +0,0 @@
-package coursier.lmcoursier
-
-import sbt.librarymanagement.Resolver
-import sjsonnew.JsonFormat
-
-object CustomLibraryManagementCodec extends CoursierLibraryManagementCodec {
-
-  private type ConfFormat = (
-    Vector[Resolver],
-    Vector[Resolver],
-    Boolean,
-    Int,
-    Int
-  )
-
-  private def from(c: CoursierConfiguration): ConfFormat =
-    (
-      c.resolvers,
-      c.otherResolvers,
-      c.reorderResolvers,
-      c.parallelDownloads,
-      c.maxIterations
-    )
-
-  private def to(c: ConfFormat): CoursierConfiguration =
-    CoursierConfiguration()
-      .withResolvers(c._1)
-      .withOtherResolvers(c._2)
-      .withReorderResolvers(c._3)
-      .withParallelDownloads(c._4)
-      .withMaxIterations(c._5)
-
-  // Redefine to use a subset of properties, that are serializable
-  override implicit lazy val CoursierConfigurationFormat: JsonFormat[CoursierConfiguration] =
-    projectFormat[CoursierConfiguration, ConfFormat](from, to)
-
-}
diff --git a/modules/lm-coursier/src/main/scala/coursier/lmcoursier/FallbackDependency.scala b/modules/lm-coursier/src/main/scala/coursier/lmcoursier/FallbackDependency.scala
new file mode 100644
index 000000000..5e9476cd6
--- /dev/null
+++ b/modules/lm-coursier/src/main/scala/coursier/lmcoursier/FallbackDependency.scala
@@ -0,0 +1,13 @@
+package coursier.lmcoursier
+
+import java.net.URL
+
+import coursier.core.Module
+
+// FIXME Handle that via the contraband thing?
+final case class FallbackDependency(
+  module: Module,
+  version: String,
+  url: URL,
+  changing: Boolean
+)
diff --git a/modules/lm-coursier/src/main/scala/coursier/lmcoursier/FromSbt.scala b/modules/lm-coursier/src/main/scala/coursier/lmcoursier/FromSbt.scala
index e0a14a8d1..82cfc7d12 100644
--- a/modules/lm-coursier/src/main/scala/coursier/lmcoursier/FromSbt.scala
+++ b/modules/lm-coursier/src/main/scala/coursier/lmcoursier/FromSbt.scala
@@ -94,14 +94,14 @@ object FromSbt {
     allDependencies: Seq[ModuleID],
     scalaVersion: String,
     scalaBinaryVersion: String
-  ): Seq[(Module, String, URL, Boolean)] =
+  ): Seq[FallbackDependency] =
     for {
       module <- allDependencies
       artifact <- module.explicitArtifacts
       url <- artifact.url.toSeq
     } yield {
       val (module0, version) = moduleVersion(module, scalaVersion, scalaBinaryVersion)
-      (module0, version, url, module.isChanging)
+      FallbackDependency(module0, version, url, module.isChanging)
     }
 
   def sbtClassifiersProject(
diff --git a/modules/lm-coursier/src/main/scala/coursier/lmcoursier/Inputs.scala b/modules/lm-coursier/src/main/scala/coursier/lmcoursier/Inputs.scala
index 932bf680e..999339366 100644
--- a/modules/lm-coursier/src/main/scala/coursier/lmcoursier/Inputs.scala
+++ b/modules/lm-coursier/src/main/scala/coursier/lmcoursier/Inputs.scala
@@ -88,6 +88,34 @@ object Inputs {
     sets.values.toVector.distinct.map(_.set.toSet)
   }
 
+  def exclusions(
+    excludeDeps: Seq[InclExclRule],
+    sv: String,
+    sbv: String,
+    log: Logger
+  ): Set[(Organization, ModuleName)] = {
+
+    var anyNonSupportedExclusionRule = false
+
+    val res = excludeDeps
+      .flatMap { rule =>
+        if (rule.artifact != "*" || rule.configurations.nonEmpty) {
+          log.warn(s"Unsupported exclusion rule $rule")
+          anyNonSupportedExclusionRule = true
+          Nil
+        } else
+          Seq(
+            (Organization(rule.organization), ModuleName(FromSbt.sbtCrossVersionName(rule.name, rule.crossVersion, sv, sbv)))
+          )
+      }
+      .toSet
+
+    if (anyNonSupportedExclusionRule)
+      log.warn("Only supported exclusion rule fields: organization, name")
+
+    res
+  }
+
   def coursierProject(
     projId: ModuleID,
     dependencies: Seq[ModuleID],
@@ -98,28 +126,7 @@ object Inputs {
     log: Logger
   ): Project = {
 
-    val exclusions = {
-
-      var anyNonSupportedExclusionRule = false
-
-      val res = excludeDeps
-        .flatMap { rule =>
-          if (rule.artifact != "*" || rule.configurations.nonEmpty) {
-            log.warn(s"Unsupported exclusion rule $rule")
-            anyNonSupportedExclusionRule = true
-            Nil
-          } else
-            Seq(
-              (Organization(rule.organization), ModuleName(FromSbt.sbtCrossVersionName(rule.name, rule.crossVersion, sv, sbv)))
-            )
-        }
-        .toSet
-
-      if (anyNonSupportedExclusionRule)
-        log.warn("Only supported exclusion rule fields: organization, name")
-
-      res
-    }
+    val exclusions0 = exclusions(excludeDeps, sv, sbv, log)
 
     val configMap = configExtends(configurations)
 
@@ -134,7 +141,7 @@ object Inputs {
     proj.copy(
       dependencies = proj.dependencies.map {
         case (config, dep) =>
-          (config, dep.copy(exclusions = dep.exclusions ++ exclusions))
+          (config, dep.copy(exclusions = dep.exclusions ++ exclusions0))
       }
     )
   }
diff --git a/modules/lm-coursier/src/main/scala/coursier/lmcoursier/ResolutionParams.scala b/modules/lm-coursier/src/main/scala/coursier/lmcoursier/ResolutionParams.scala
index e73ee3cdc..b14bab809 100644
--- a/modules/lm-coursier/src/main/scala/coursier/lmcoursier/ResolutionParams.scala
+++ b/modules/lm-coursier/src/main/scala/coursier/lmcoursier/ResolutionParams.scala
@@ -14,7 +14,7 @@ import scala.concurrent.duration.Duration
 
 final case class ResolutionParams(
   dependencies: Seq[(Configuration, Dependency)],
-  fallbackDependencies: Seq[(Module, String, URL, Boolean)],
+  fallbackDependencies: Seq[FallbackDependency],
   configGraphs: Seq[Set[Configuration]],
   autoScalaLib: Boolean,
   mainRepositories: Seq[Repository],
@@ -42,7 +42,7 @@ final case class ResolutionParams(
       Nil
     else {
       val map = fallbackDependencies.map {
-        case (mod, ver, url, changing) =>
+        case FallbackDependency(mod, ver, url, changing) =>
           (mod, ver) -> ((url, changing))
       }.toMap
 
diff --git a/modules/lm-coursier/src/main/scala/coursier/lmcoursier/ToSbt.scala b/modules/lm-coursier/src/main/scala/coursier/lmcoursier/ToSbt.scala
index 7ac41ac6d..2d6bb1748 100644
--- a/modules/lm-coursier/src/main/scala/coursier/lmcoursier/ToSbt.scala
+++ b/modules/lm-coursier/src/main/scala/coursier/lmcoursier/ToSbt.scala
@@ -254,7 +254,7 @@ object ToSbt {
     }
 
     UpdateReport(
-      new File("."),
+      new File("."), // dummy value
       configReports.toVector,
       UpdateStats(-1L, -1L, -1L, cached = false),
       Map.empty
diff --git a/modules/lm-coursier/src/main/scala/coursier/lmcoursier/UpdateParams.scala b/modules/lm-coursier/src/main/scala/coursier/lmcoursier/UpdateParams.scala
index 7700a75dd..71c780449 100644
--- a/modules/lm-coursier/src/main/scala/coursier/lmcoursier/UpdateParams.scala
+++ b/modules/lm-coursier/src/main/scala/coursier/lmcoursier/UpdateParams.scala
@@ -15,4 +15,44 @@ final case class UpdateParams(
   ignoreArtifactErrors: Boolean,
   includeSignatures: Boolean,
   sbtBootJarOverrides: Map[(Module, String), File]
-)
+) {
+
+  lazy val artifactFiles = artifacts.collect {
+    case (artifact, Right(file)) =>
+      artifact -> file
+  }
+
+  // can be non empty only if ignoreArtifactErrors is true or some optional artifacts are not found
+  lazy val erroredArtifacts = artifacts
+    .collect {
+      case (artifact, Left(_)) =>
+        artifact
+    }
+    .toSet
+
+  def artifactFileOpt(
+    module: Module,
+    version: String,
+    attributes: Attributes,
+    artifact: Artifact
+  ): Option[File] = {
+
+    // Under some conditions, SBT puts the scala JARs of its own classpath
+    // in the application classpath. Ensuring we return SBT's jars rather than
+    // JARs from the coursier cache, so that a same JAR doesn't land twice in the
+    // application classpath (once via SBT jars, once via coursier cache).
+    val fromBootJars =
+      if (attributes.classifier.isEmpty && attributes.`type` == Type.jar)
+        sbtBootJarOverrides.get((module, version))
+      else
+        None
+
+    val res = fromBootJars.orElse(artifactFiles.get(artifact))
+
+    if (res.isEmpty && !erroredArtifacts(artifact))
+      sys.error(s"${artifact.url} not downloaded (should not happen)")
+
+    res
+  }
+
+}
diff --git a/modules/lm-coursier/src/main/scala/coursier/lmcoursier/UpdateRun.scala b/modules/lm-coursier/src/main/scala/coursier/lmcoursier/UpdateRun.scala
index 7ea5a1b78..8ddfe312f 100644
--- a/modules/lm-coursier/src/main/scala/coursier/lmcoursier/UpdateRun.scala
+++ b/modules/lm-coursier/src/main/scala/coursier/lmcoursier/UpdateRun.scala
@@ -1,7 +1,5 @@
 package coursier.lmcoursier
 
-import java.io.File
-
 import coursier.core.Resolution.ModuleVersion
 import coursier.core._
 import coursier.util.Print
@@ -10,35 +8,6 @@ import sbt.util.Logger
 
 object UpdateRun {
 
-  private def artifactFileOpt(
-    sbtBootJarOverrides: Map[(Module, String), File],
-    artifactFiles: Map[Artifact, File],
-    erroredArtifacts: Set[Artifact]
-  )(
-    module: Module,
-    version: String,
-    attributes: Attributes,
-    artifact: Artifact
-  ): Option[File] = {
-
-    // Under some conditions, SBT puts the scala JARs of its own classpath
-    // in the application classpath. Ensuring we return SBT's jars rather than
-    // JARs from the coursier cache, so that a same JAR doesn't land twice in the
-    // application classpath (once via SBT jars, once via coursier cache).
-    val fromBootJars =
-      if (attributes.classifier.isEmpty && attributes.`type` == Type.jar)
-        sbtBootJarOverrides.get((module, version))
-      else
-        None
-
-    val res = fromBootJars.orElse(artifactFiles.get(artifact))
-
-    if (res.isEmpty && !erroredArtifacts(artifact))
-      sys.error(s"${artifact.url} not downloaded (should not happen)")
-
-    res
-  }
-
   // Move back to coursier.util (in core module) after 1.0?
   private def allDependenciesByConfig(
     res: Map[Configuration, Resolution],
@@ -114,11 +83,6 @@ object UpdateRun {
       log.info(repr.split('\n').map("  " + _).mkString("\n"))
     }
 
-    val artifactFiles = params.artifacts.collect {
-      case (artifact, Right(file)) =>
-        artifact -> file
-    }
-
     val artifactErrors = params
       .artifacts
       .toVector
@@ -127,26 +91,13 @@ object UpdateRun {
           a -> err
       }
 
-    // can be non empty only if ignoreArtifactErrors is true or some optional artifacts are not found
-    val erroredArtifacts = params
-      .artifacts
-      .collect {
-        case (artifact, Left(_)) =>
-          artifact
-      }
-      .toSet
-
     def report =
       ToSbt.updateReport(
         depsByConfig,
         configResolutions,
         params.configs,
         params.classifiers,
-        artifactFileOpt(
-          params.sbtBootJarOverrides,
-          artifactFiles,
-          erroredArtifacts
-        ),
+        params.artifactFileOpt,
         log,
         includeSignatures = params.includeSignatures
       )
diff --git a/modules/sbt-coursier-shared/src/main/scala/coursier/sbtcoursiershared/ArtifactsTasks.scala b/modules/sbt-coursier-shared/src/main/scala/coursier/sbtcoursiershared/ArtifactsTasks.scala
new file mode 100644
index 000000000..94b39faac
--- /dev/null
+++ b/modules/sbt-coursier-shared/src/main/scala/coursier/sbtcoursiershared/ArtifactsTasks.scala
@@ -0,0 +1,143 @@
+package coursier.sbtcoursiershared
+
+import coursier.core._
+import coursier.lmcoursier._
+import coursier.sbtcoursiershared.Structure._
+import sbt.librarymanagement.{Artifact => _, Configuration => _, _}
+import sbt.Def
+import sbt.Keys._
+
+object ArtifactsTasks {
+
+  def coursierPublicationsTask(
+    configsMap: (sbt.librarymanagement.Configuration, Configuration)*
+  ): Def.Initialize[sbt.Task[Seq[(Configuration, Publication)]]] =
+    Def.task {
+
+      val state = sbt.Keys.state.value
+      val projectRef = sbt.Keys.thisProjectRef.value
+      val projId = sbt.Keys.projectID.value
+      val sv = sbt.Keys.scalaVersion.value
+      val sbv = sbt.Keys.scalaBinaryVersion.value
+      val ivyConfs = sbt.Keys.ivyConfigurations.value
+
+      val sourcesConfigOpt =
+        if (ivyConfigurations.value.exists(_.name == "sources"))
+          Some(Configuration("sources"))
+        else
+          None
+
+      val docsConfigOpt =
+        if (ivyConfigurations.value.exists(_.name == "docs"))
+          Some(Configuration("docs"))
+        else
+          None
+
+      val sbtBinArtifacts =
+        for ((config, targetConfig) <- configsMap) yield {
+
+          val publish = publishArtifact
+            .in(projectRef)
+            .in(packageBin)
+            .in(config)
+            .getOrElse(state, false)
+
+          if (publish)
+            artifact
+              .in(projectRef)
+              .in(packageBin)
+              .in(config)
+              .find(state)
+              .map(targetConfig -> _)
+          else
+            None
+        }
+
+      val sbtSourceArtifacts =
+        for ((config, targetConfig) <- configsMap) yield {
+
+          val publish = publishArtifact
+            .in(projectRef)
+            .in(packageSrc)
+            .in(config)
+            .getOrElse(state, false)
+
+          if (publish)
+            artifact
+              .in(projectRef)
+              .in(packageSrc)
+              .in(config)
+              .find(state)
+              .map(sourcesConfigOpt.getOrElse(targetConfig) -> _)
+          else
+            None
+        }
+
+      val sbtDocArtifacts =
+        for ((config, targetConfig) <- configsMap) yield {
+
+          val publish = publishArtifact
+            .in(projectRef)
+            .in(packageDoc)
+            .in(config)
+            .getOrElse(state, false)
+
+          if (publish)
+            artifact
+              .in(projectRef)
+              .in(packageDoc)
+              .in(config)
+              .find(state)
+              .map(docsConfigOpt.getOrElse(targetConfig) -> _)
+          else
+            None
+        }
+
+      val sbtArtifacts = sbtBinArtifacts ++ sbtSourceArtifacts ++ sbtDocArtifacts
+
+      def artifactPublication(artifact: sbt.Artifact) = {
+
+        val name = FromSbt.sbtCrossVersionName(
+          artifact.name,
+          projId.crossVersion,
+          sv,
+          sbv
+        )
+
+        Publication(
+          name,
+          Type(artifact.`type`),
+          Extension(artifact.extension),
+          artifact.classifier.fold(Classifier.empty)(Classifier(_))
+        )
+      }
+
+      val sbtArtifactsPublication = sbtArtifacts.collect {
+        case Some((config, artifact)) =>
+          config -> artifactPublication(artifact)
+      }
+
+      val stdArtifactsSet = sbtArtifacts.flatMap(_.map { case (_, a) => a }.toSeq).toSet
+
+      // Second-way of getting artifacts from SBT
+      // No obvious way of getting the corresponding  publishArtifact  value for the ones
+      // only here, it seems.
+      val extraSbtArtifacts = sbt.Keys.artifacts.in(projectRef).getOrElse(state, Nil)
+        .filterNot(stdArtifactsSet)
+
+      // Seems that SBT does that - if an artifact has no configs,
+      // it puts it in all of them. See for example what happens to
+      // the standalone JAR artifact of the coursier cli module.
+      def allConfigsIfEmpty(configs: Iterable[ConfigRef]): Iterable[ConfigRef] =
+        if (configs.isEmpty) ivyConfs.filter(_.isPublic).map(c => ConfigRef(c.name)) else configs
+
+      val extraSbtArtifactsPublication = for {
+        artifact <- extraSbtArtifacts
+        config <- allConfigsIfEmpty(artifact.configurations.map(x => ConfigRef(x.name)))
+        // FIXME If some configurations from artifact.configurations are not public, they may leak here :\
+      } yield Configuration(config.name) -> artifactPublication(artifact)
+
+      sbtArtifactsPublication ++ extraSbtArtifactsPublication
+    }
+
+}
diff --git a/modules/sbt-coursier-shared/src/main/scala/coursier/sbtcoursiershared/InputsTasks.scala b/modules/sbt-coursier-shared/src/main/scala/coursier/sbtcoursiershared/InputsTasks.scala
new file mode 100644
index 000000000..339f18c2c
--- /dev/null
+++ b/modules/sbt-coursier-shared/src/main/scala/coursier/sbtcoursiershared/InputsTasks.scala
@@ -0,0 +1,70 @@
+package coursier.sbtcoursiershared
+
+import coursier.core._
+import coursier.lmcoursier._
+import coursier.sbtcoursiershared.SbtCoursierShared.autoImport._
+import coursier.sbtcoursiershared.Structure._
+import sbt.Def
+import sbt.Keys._
+
+object InputsTasks {
+
+  def coursierProjectTask: Def.Initialize[sbt.Task[Project]] =
+    Def.taskDyn {
+
+      val state = sbt.Keys.state.value
+      val projectRef = sbt.Keys.thisProjectRef.value
+
+      val allDependenciesTask = allDependencies.in(projectRef).get(state)
+
+      Def.task {
+        Inputs.coursierProject(
+          projectID.in(projectRef).get(state),
+          allDependenciesTask.value,
+          excludeDependencies.in(projectRef).get(state),
+          // should projectID.configurations be used instead?
+          ivyConfigurations.in(projectRef).get(state),
+          scalaVersion.in(projectRef).get(state),
+          scalaBinaryVersion.in(projectRef).get(state),
+          state.log
+        )
+      }
+    }
+
+  def coursierInterProjectDependenciesTask: Def.Initialize[sbt.Task[Seq[Project]]] =
+    Def.taskDyn {
+
+      val state = sbt.Keys.state.value
+      val projectRef = sbt.Keys.thisProjectRef.value
+
+      val projects = Structure.allRecursiveInterDependencies(state, projectRef)
+
+      val t = coursierProject.forAllProjects(state, projects).map(_.values.toVector)
+
+      Def.task(t.value)
+    }
+
+  def coursierFallbackDependenciesTask: Def.Initialize[sbt.Task[Seq[FallbackDependency]]] =
+    Def.taskDyn {
+
+      val state = sbt.Keys.state.value
+      val projectRef = sbt.Keys.thisProjectRef.value
+
+      val projects = allRecursiveInterDependencies(state, projectRef)
+
+      val allDependenciesTask = allDependencies
+        .forAllProjects(state, projectRef +: projects)
+        .map(_.values.toVector.flatten)
+
+      Def.task {
+        val allDependencies = allDependenciesTask.value
+
+        FromSbt.fallbackDependencies(
+          allDependencies,
+          scalaVersion.in(projectRef).get(state),
+          scalaBinaryVersion.in(projectRef).get(state)
+        )
+      }
+    }
+
+}
diff --git a/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/IvyXml.scala b/modules/sbt-coursier-shared/src/main/scala/coursier/sbtcoursiershared/IvyXml.scala
similarity index 73%
rename from modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/IvyXml.scala
rename to modules/sbt-coursier-shared/src/main/scala/coursier/sbtcoursiershared/IvyXml.scala
index 9b66ef972..95dd98c62 100644
--- a/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/IvyXml.scala
+++ b/modules/sbt-coursier-shared/src/main/scala/coursier/sbtcoursiershared/IvyXml.scala
@@ -1,20 +1,22 @@
-package coursier.sbtcoursier
+package coursier.sbtcoursiershared
 
 import java.nio.charset.StandardCharsets.UTF_8
 import java.nio.file.Files
 
 import coursier.core.{Configuration, Project}
 import org.apache.ivy.core.module.id.ModuleRevisionId
+import sbt.{Def, Setting, Task, TaskKey}
+import sbt.internal.librarymanagement.IvySbt
+import sbt.librarymanagement.PublishConfiguration
 
 import scala.collection.JavaConverters._
 import scala.xml.{Node, PrefixedAttribute}
-import sbt.internal.librarymanagement.IvySbt
 
 object IvyXml {
 
   def rawContent(
     currentProject: Project,
-    shadedConfigOpt: Option[(String, Configuration)]
+    shadedConfigOpt: Option[Configuration]
   ): String = {
 
     // Important: width = Int.MaxValue, so that no tag gets truncated.
@@ -26,15 +28,15 @@ object IvyXml {
     val printer = new scala.xml.PrettyPrinter(Int.MaxValue, 2)
 
     """<?xml version="1.0" encoding="UTF-8"?>""" + '\n' +
-      printer.format(content(currentProject, shadedConfigOpt.map(_._2)))
+      printer.format(content(currentProject, shadedConfigOpt))
   }
 
   // These are required for publish to be fine, later on.
   def writeFiles(
     currentProject: Project,
-    shadedConfigOpt: Option[(String, Configuration)],
+    shadedConfigOpt: Option[Configuration],
     ivySbt: IvySbt,
-    log: sbt.Logger
+    log: sbt.util.Logger
   ): Unit = {
 
     val ivyCacheManager = ivySbt.withIvy(log)(ivy =>
@@ -153,4 +155,45 @@ object IvyXml {
     </ivy-module>
   }
 
+  def makeIvyXmlBefore[T](
+    task: TaskKey[T],
+    shadedConfigOpt: Option[Configuration]
+  ): Setting[Task[T]] =
+    task := task.dependsOn {
+      Def.taskDyn {
+        import SbtCoursierShared.autoImport._
+        val doGen = coursierGenerateIvyXml.value
+        if (doGen)
+          Def.task {
+            val currentProject = {
+              val proj = coursierProject.value
+              val publications = coursierPublications.value
+              proj.copy(publications = publications)
+            }
+            IvyXml.writeFiles(currentProject, shadedConfigOpt, sbt.Keys.ivySbt.value, sbt.Keys.streams.value.log)
+          }
+        else
+          Def.task(())
+      }
+    }.value
+
+  private lazy val needsIvyXmlLocal = Seq(sbt.Keys.publishLocalConfiguration) ++ getPubConf("makeIvyXmlLocalConfiguration")
+  private lazy val needsIvyXml = Seq(sbt.Keys.publishConfiguration) ++ getPubConf("makeIvyXmlConfiguration")
+
+  private[this] def getPubConf(method: String): List[TaskKey[PublishConfiguration]] =
+    try {
+      val cls = sbt.Keys.getClass
+      val m = cls.getMethod(method)
+      val task = m.invoke(sbt.Keys).asInstanceOf[TaskKey[PublishConfiguration]]
+      List(task)
+    } catch {
+      case _: Throwable => // FIXME Too wide
+        Nil
+    }
+
+  def generateIvyXmlSettings(
+    shadedConfigOpt: Option[Configuration] = None
+  ): Seq[Setting[_]] =
+    (needsIvyXml ++ needsIvyXmlLocal).map(IvyXml.makeIvyXmlBefore(_, shadedConfigOpt))
+
 }
diff --git a/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/RepositoriesTasks.scala b/modules/sbt-coursier-shared/src/main/scala/coursier/sbtcoursiershared/RepositoriesTasks.scala
similarity index 89%
rename from modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/RepositoriesTasks.scala
rename to modules/sbt-coursier-shared/src/main/scala/coursier/sbtcoursiershared/RepositoriesTasks.scala
index ddf3bfe87..1abb9c9de 100644
--- a/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/RepositoriesTasks.scala
+++ b/modules/sbt-coursier-shared/src/main/scala/coursier/sbtcoursiershared/RepositoriesTasks.scala
@@ -1,8 +1,8 @@
-package coursier.sbtcoursier
+package coursier.sbtcoursiershared
 
 import coursier.lmcoursier._
-import coursier.sbtcoursier.Keys._
-import coursier.sbtcoursier.Structure._
+import coursier.sbtcoursiershared.SbtCoursierShared.autoImport._
+import coursier.sbtcoursiershared.Structure._
 import sbt.{Classpaths, Def}
 import sbt.Keys._
 import sbt.librarymanagement.Resolver
@@ -60,7 +60,7 @@ object RepositoriesTasks {
       val state = sbt.Keys.state.value
       val projectRef = sbt.Keys.thisProjectRef.value
 
-      val projects = Structure.allRecursiveInterDependencies(state, projectRef)
+      val projects = allRecursiveInterDependencies(state, projectRef)
 
       val t = coursierResolvers
         .forAllProjects(state, projectRef +: projects)
diff --git a/modules/sbt-coursier-shared/src/main/scala/coursier/sbtcoursiershared/SbtCoursierShared.scala b/modules/sbt-coursier-shared/src/main/scala/coursier/sbtcoursiershared/SbtCoursierShared.scala
new file mode 100644
index 000000000..5f00bbe09
--- /dev/null
+++ b/modules/sbt-coursier-shared/src/main/scala/coursier/sbtcoursiershared/SbtCoursierShared.scala
@@ -0,0 +1,147 @@
+package coursier.sbtcoursiershared
+
+import coursier.core.{Configuration, Project, Publication}
+import coursier.lmcoursier.{FallbackDependency, SbtCoursierCache}
+import sbt.{AutoPlugin, Classpaths, Compile, Setting, TaskKey, Test, settingKey, taskKey}
+import sbt.Keys._
+import sbt.librarymanagement.{Resolver, URLRepository}
+
+object SbtCoursierShared extends AutoPlugin {
+
+  override def trigger = allRequirements
+
+  override def requires = sbt.plugins.JvmPlugin
+
+  object autoImport {
+    val coursierGenerateIvyXml = settingKey[Boolean]("")
+    val coursierProject = TaskKey[Project]("coursier-project")
+    val coursierInterProjectDependencies = TaskKey[Seq[Project]]("coursier-inter-project-dependencies", "Projects the current project depends on, possibly transitively")
+    val coursierPublications = TaskKey[Seq[(Configuration, Publication)]]("coursier-publications")
+
+    val coursierKeepPreloaded = settingKey[Boolean]("Whether to take into account sbt preloaded repositories or not")
+    val coursierReorderResolvers = settingKey[Boolean](
+      "Whether resolvers should be re-ordered so that typically slow ones are given a lower priority"
+    )
+    val coursierResolvers = taskKey[Seq[Resolver]]("")
+    val coursierRecursiveResolvers = taskKey[Seq[Resolver]]("Resolvers of the current project, plus those of all from its inter-dependency projects")
+    val coursierSbtResolvers = taskKey[Seq[Resolver]]("")
+
+    val coursierFallbackDependencies = taskKey[Seq[FallbackDependency]]("")
+  }
+
+  import autoImport._
+
+  def publicationsSetting(packageConfigs: Seq[(sbt.Configuration, Configuration)]): Setting[_] =
+    coursierPublications := ArtifactsTasks.coursierPublicationsTask(packageConfigs: _*).value
+
+  override def buildSettings: Seq[Setting[_]] =
+    Seq(
+      coursierReorderResolvers := true,
+      coursierKeepPreloaded := false
+    )
+
+  private val pluginIvySnapshotsBase = Resolver.SbtRepositoryRoot.stripSuffix("/") + "/ivy-snapshots"
+
+  override def projectSettings = settings(pubSettings = true)
+
+  def settings(pubSettings: Boolean) =
+    Seq[Setting[_]](
+      clean := {
+        val noWarningPlz = clean.value
+        SbtCoursierCache.default.clear()
+      },
+      coursierGenerateIvyXml := true,
+      coursierProject := InputsTasks.coursierProjectTask.value,
+      coursierInterProjectDependencies := InputsTasks.coursierInterProjectDependenciesTask.value
+    ) ++ {
+      if (pubSettings)
+        Seq(
+          publicationsSetting(Seq(Compile, Test).map(c => c -> Configuration(c.name)))
+        )
+      else
+        Nil
+    } ++ Seq(
+      // Tests artifacts from Maven repositories are given this type.
+      // Adding it here so that these work straightaway.
+      classpathTypes += "test-jar", // FIXME Should this go in buildSettings?
+      coursierResolvers := RepositoriesTasks.coursierResolversTask.value,
+      coursierRecursiveResolvers := RepositoriesTasks.coursierRecursiveResolversTask.value,
+      coursierSbtResolvers := {
+
+        // TODO Add docker-based integration test for that, see https://github.com/coursier/coursier/issues/632
+
+        val resolvers =
+          sbt.Classpaths.bootRepositories(appConfiguration.value).toSeq.flatten ++ // required because of the hack above it seems
+            externalResolvers.in(updateSbtClassifiers).value
+
+        val pluginIvySnapshotsFound = resolvers.exists {
+          case repo: URLRepository =>
+            repo
+              .patterns
+              .artifactPatterns
+              .headOption
+              .exists(_.startsWith(pluginIvySnapshotsBase))
+          case _ => false
+        }
+
+        val resolvers0 =
+          if (pluginIvySnapshotsFound && !resolvers.contains(Classpaths.sbtPluginReleases))
+            resolvers :+ Classpaths.sbtPluginReleases
+          else
+            resolvers
+
+        if (SbtCoursierShared.autoImport.coursierKeepPreloaded.value)
+          resolvers0
+        else
+          resolvers0.filter { r =>
+            !r.name.startsWith("local-preloaded")
+          }
+      },
+      coursierFallbackDependencies := InputsTasks.coursierFallbackDependenciesTask.value,
+      ivyConfigurations := {
+        val confs = ivyConfigurations.value
+        val names = confs.map(_.name).toSet
+
+        // Yes, adding those back in sbt 1.0. Can't distinguish between config test (whose jars with classifier tests ought to
+        // be added), and sources / docs else (if their JARs are in compile, they would get added too then).
+
+        val extraSources =
+          if (names("sources"))
+            None
+          else
+            Some(
+              sbt.Configuration.of(
+                id = "Sources",
+                name = "sources",
+                description = "",
+                isPublic = true,
+                extendsConfigs = Vector.empty,
+                transitive = false
+              )
+            )
+
+        val extraDocs =
+          if (names("docs"))
+            None
+          else
+            Some(
+              sbt.Configuration.of(
+                id = "Docs",
+                name = "docs",
+                description = "",
+                isPublic = true,
+                extendsConfigs = Vector.empty,
+                transitive = false
+              )
+            )
+
+        confs ++ extraSources.toSeq ++ extraDocs.toSeq
+      }
+    ) ++ {
+      if (pubSettings)
+        IvyXml.generateIvyXmlSettings()
+      else
+        Nil
+    }
+
+}
diff --git a/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/Structure.scala b/modules/sbt-coursier-shared/src/main/scala/coursier/sbtcoursiershared/Structure.scala
similarity index 97%
rename from modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/Structure.scala
rename to modules/sbt-coursier-shared/src/main/scala/coursier/sbtcoursiershared/Structure.scala
index cada0a1a0..68b4411f3 100644
--- a/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/Structure.scala
+++ b/modules/sbt-coursier-shared/src/main/scala/coursier/sbtcoursiershared/Structure.scala
@@ -1,4 +1,4 @@
-package coursier.sbtcoursier
+package coursier.sbtcoursiershared
 
 import sbt._
 
diff --git a/modules/sbt-coursier/src/test/scala/coursier/sbtcoursier/IvyXmlTests.scala b/modules/sbt-coursier-shared/src/test/scala/coursier/sbtcoursiershared/IvyXmlTests.scala
similarity index 95%
rename from modules/sbt-coursier/src/test/scala/coursier/sbtcoursier/IvyXmlTests.scala
rename to modules/sbt-coursier-shared/src/test/scala/coursier/sbtcoursiershared/IvyXmlTests.scala
index 91d8ce783..35e7da556 100644
--- a/modules/sbt-coursier/src/test/scala/coursier/sbtcoursier/IvyXmlTests.scala
+++ b/modules/sbt-coursier-shared/src/test/scala/coursier/sbtcoursiershared/IvyXmlTests.scala
@@ -1,4 +1,4 @@
-package coursier.sbtcoursier
+package coursier.sbtcoursiershared
 
 import coursier.core.Configuration
 import coursier.{Info, Module, Project, moduleNameString, organizationString}
diff --git a/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/ArtifactsTasks.scala b/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/ArtifactsTasks.scala
index 15d261b92..a3a4bc105 100644
--- a/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/ArtifactsTasks.scala
+++ b/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/ArtifactsTasks.scala
@@ -6,144 +6,11 @@ import coursier.{Artifact, FileError}
 import coursier.core._
 import coursier.lmcoursier._
 import coursier.sbtcoursier.Keys._
-import coursier.sbtcoursier.Structure._
-import sbt.librarymanagement.{Artifact => _, Configuration => _, _}
 import sbt.Def
 import sbt.Keys._
 
 object ArtifactsTasks {
 
-  def coursierPublicationsTask(
-    configsMap: (sbt.librarymanagement.Configuration, Configuration)*
-  ): Def.Initialize[sbt.Task[Seq[(Configuration, Publication)]]] =
-    Def.task {
-
-      val state = sbt.Keys.state.value
-      val projectRef = sbt.Keys.thisProjectRef.value
-      val projId = sbt.Keys.projectID.value
-      val sv = sbt.Keys.scalaVersion.value
-      val sbv = sbt.Keys.scalaBinaryVersion.value
-      val ivyConfs = sbt.Keys.ivyConfigurations.value
-
-      val sourcesConfigOpt =
-        if (ivyConfigurations.value.exists(_.name == "sources"))
-          Some(Configuration("sources"))
-        else
-          None
-
-      val docsConfigOpt =
-        if (ivyConfigurations.value.exists(_.name == "docs"))
-          Some(Configuration("docs"))
-        else
-          None
-
-      val sbtBinArtifacts =
-        for ((config, targetConfig) <- configsMap) yield {
-
-          val publish = publishArtifact
-            .in(projectRef)
-            .in(packageBin)
-            .in(config)
-            .getOrElse(state, false)
-
-          if (publish)
-            artifact
-              .in(projectRef)
-              .in(packageBin)
-              .in(config)
-              .find(state)
-              .map(targetConfig -> _)
-          else
-            None
-        }
-
-      val sbtSourceArtifacts =
-        for ((config, targetConfig) <- configsMap) yield {
-
-          val publish = publishArtifact
-            .in(projectRef)
-            .in(packageSrc)
-            .in(config)
-            .getOrElse(state, false)
-
-          if (publish)
-            artifact
-              .in(projectRef)
-              .in(packageSrc)
-              .in(config)
-              .find(state)
-              .map(sourcesConfigOpt.getOrElse(targetConfig) -> _)
-          else
-            None
-        }
-
-      val sbtDocArtifacts =
-        for ((config, targetConfig) <- configsMap) yield {
-
-          val publish = publishArtifact
-            .in(projectRef)
-            .in(packageDoc)
-            .in(config)
-            .getOrElse(state, false)
-
-          if (publish)
-            artifact
-              .in(projectRef)
-              .in(packageDoc)
-              .in(config)
-              .find(state)
-              .map(docsConfigOpt.getOrElse(targetConfig) -> _)
-          else
-            None
-        }
-
-      val sbtArtifacts = sbtBinArtifacts ++ sbtSourceArtifacts ++ sbtDocArtifacts
-
-      def artifactPublication(artifact: sbt.Artifact) = {
-
-        val name = FromSbt.sbtCrossVersionName(
-          artifact.name,
-          projId.crossVersion,
-          sv,
-          sbv
-        )
-
-        Publication(
-          name,
-          Type(artifact.`type`),
-          Extension(artifact.extension),
-          artifact.classifier.fold(Classifier.empty)(Classifier(_))
-        )
-      }
-
-      val sbtArtifactsPublication = sbtArtifacts.collect {
-        case Some((config, artifact)) =>
-          config -> artifactPublication(artifact)
-      }
-
-      val stdArtifactsSet = sbtArtifacts.flatMap(_.map { case (_, a) => a }.toSeq).toSet
-
-      // Second-way of getting artifacts from SBT
-      // No obvious way of getting the corresponding  publishArtifact  value for the ones
-      // only here, it seems.
-      val extraSbtArtifacts = sbt.Keys.artifacts.in(projectRef).getOrElse(state, Nil)
-        .filterNot(stdArtifactsSet)
-
-      // Seems that SBT does that - if an artifact has no configs,
-      // it puts it in all of them. See for example what happens to
-      // the standalone JAR artifact of the coursier cli module.
-      def allConfigsIfEmpty(configs: Iterable[ConfigRef]): Iterable[ConfigRef] =
-        if (configs.isEmpty) ivyConfs.filter(_.isPublic).map(c => ConfigRef(c.name)) else configs
-
-      val extraSbtArtifactsPublication = for {
-        artifact <- extraSbtArtifacts
-        config <- allConfigsIfEmpty(artifact.configurations.map(x => ConfigRef(x.name)))
-        // FIXME If some configurations from artifact.configurations are not public, they may leak here :\
-      } yield Configuration(config.name) -> artifactPublication(artifact)
-
-      sbtArtifactsPublication ++ extraSbtArtifactsPublication
-    }
-
   def artifactsTask(
     withClassifiers: Boolean,
     sbtClassifiers: Boolean = false,
diff --git a/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/CoursierPlugin.scala b/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/CoursierPlugin.scala
index 63326c448..a33dac17e 100644
--- a/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/CoursierPlugin.scala
+++ b/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/CoursierPlugin.scala
@@ -4,8 +4,7 @@ import java.io.OutputStreamWriter
 
 import coursier.{Cache, CachePolicy, TermDisplay}
 import coursier.core.{Configuration, ResolutionProcess}
-import coursier.lmcoursier.SbtCoursierCache
-import sbt.librarymanagement.{Configuration => _, Resolver => _, _}
+import coursier.sbtcoursiershared.SbtCoursierShared
 import sbt.{Cache => _, Configuration => _, _}
 import sbt.Keys._
 
@@ -13,7 +12,7 @@ object CoursierPlugin extends AutoPlugin {
 
   override def trigger = allRequirements
 
-  override def requires = sbt.plugins.JvmPlugin
+  override def requires = SbtCoursierShared
 
   object autoImport {
     val coursierParallelDownloads = Keys.coursierParallelDownloads
@@ -22,21 +21,12 @@ object CoursierPlugin extends AutoPlugin {
     val coursierArtifactsChecksums = Keys.coursierArtifactsChecksums
     val coursierCachePolicies = Keys.coursierCachePolicies
     val coursierTtl = Keys.coursierTtl
-    val coursierKeepPreloaded = Keys.coursierKeepPreloaded
     val coursierVerbosity = Keys.coursierVerbosity
     val mavenProfiles = Keys.mavenProfiles
-    val coursierResolvers = Keys.coursierResolvers
-    val coursierReorderResolvers = Keys.coursierReorderResolvers
-    val coursierRecursiveResolvers = Keys.coursierRecursiveResolvers
-    val coursierSbtResolvers = Keys.coursierSbtResolvers
     val coursierUseSbtCredentials = Keys.coursierUseSbtCredentials
     val coursierCredentials = Keys.coursierCredentials
-    val coursierFallbackDependencies = Keys.coursierFallbackDependencies
     val coursierCache = Keys.coursierCache
-    val coursierProject = Keys.coursierProject
     val coursierConfigGraphs = Keys.coursierConfigGraphs
-    val coursierInterProjectDependencies = Keys.coursierInterProjectDependencies
-    val coursierPublications = Keys.coursierPublications
     val coursierSbtClassifiersModule = Keys.coursierSbtClassifiersModule
 
     val coursierConfigurations = Keys.coursierConfigurations
@@ -79,21 +69,6 @@ object CoursierPlugin extends AutoPlugin {
     }.evaluated
   )
 
-  def makeIvyXmlBefore[T](
-    task: TaskKey[T],
-    shadedConfigOpt: Option[(String, Configuration)]
-  ): Setting[Task[T]] =
-    task := task.dependsOn(Def.task {
-      val currentProject = {
-        val proj = coursierProject.value
-        val publications = coursierPublications.value
-        proj.copy(publications = publications)
-      }
-      IvyXml.writeFiles(currentProject, shadedConfigOpt, ivySbt.value, streams.value.log)
-    }).value
-
-  private val pluginIvySnapshotsBase = Resolver.SbtRepositoryRoot.stripSuffix("/") + "/ivy-snapshots"
-
   // allows to get the actual repo list when sbt starts up
   private val hackHack = Seq(
     // TODO Add docker-based non reg test for that, with sbt-assembly 0.14.5 in ~/.sbt/1.0/plugins/plugins.sbt
@@ -162,47 +137,8 @@ object CoursierPlugin extends AutoPlugin {
   )
 
   def coursierSettings(
-    shadedConfigOpt: Option[(String, Configuration)],
-    packageConfigs: Seq[(sbt.Configuration, Configuration)]
-  ) = hackHack ++ Seq(
-    clean := {
-      val noWarningPlz = clean.value
-      SbtCoursierCache.default.clear()
-    },
-    coursierResolvers := RepositoriesTasks.coursierResolversTask.value,
-    coursierRecursiveResolvers := RepositoriesTasks.coursierRecursiveResolversTask.value,
-    coursierSbtResolvers := {
-
-      // TODO Add docker-based integration test for that, see https://github.com/coursier/coursier/issues/632
-
-      val resolvers =
-        sbt.Classpaths.bootRepositories(appConfiguration.value).toSeq.flatten ++ // required because of the hack above it seems
-          externalResolvers.in(updateSbtClassifiers).value
-
-      val pluginIvySnapshotsFound = resolvers.exists {
-        case repo: URLRepository =>
-          repo
-            .patterns
-            .artifactPatterns
-            .headOption
-            .exists(_.startsWith(pluginIvySnapshotsBase))
-        case _ => false
-      }
-
-      val resolvers0 =
-        if (pluginIvySnapshotsFound && !resolvers.contains(Classpaths.sbtPluginReleases))
-          resolvers :+ Classpaths.sbtPluginReleases
-        else
-          resolvers
-
-      if (coursierKeepPreloaded.value)
-        resolvers0
-      else
-        resolvers0.filter { r =>
-          !r.name.startsWith("local-preloaded")
-        }
-    },
-    coursierFallbackDependencies := InputsTasks.coursierFallbackDependenciesTask.value,
+    shadedConfigOpt: Option[(String, Configuration)] = None
+  ): Seq[Setting[_]] = hackHack ++ Seq(
     coursierArtifacts := ArtifactsTasks.artifactsTask(withClassifiers = false).value,
     coursierSignedArtifacts := ArtifactsTasks.artifactsTask(withClassifiers = false, includeSignatures = true).value,
     coursierClassifiersArtifacts := ArtifactsTasks.artifactsTask(
@@ -227,10 +163,7 @@ object CoursierPlugin extends AutoPlugin {
       sbtClassifiers = true,
       ignoreArtifactErrors = true
     ).value,
-    coursierProject := InputsTasks.coursierProjectTask.value,
     coursierConfigGraphs := InputsTasks.ivyGraphsTask.value,
-    coursierInterProjectDependencies := InputsTasks.coursierInterProjectDependenciesTask.value,
-    coursierPublications := ArtifactsTasks.coursierPublicationsTask(packageConfigs: _*).value,
     coursierSbtClassifiersModule := classifiersModule.in(updateSbtClassifiers).value,
     coursierConfigurations := InputsTasks.coursierConfigurationsTask(None).value,
     coursierParentProjectCache := InputsTasks.parentProjectCacheTask.value,
@@ -251,51 +184,8 @@ object CoursierPlugin extends AutoPlugin {
     },
     coursierSbtClassifiersResolution := ResolutionTasks.resolutionsTask(
       sbtClassifiers = true
-    ).value.head._2,
-    ivyConfigurations := {
-      val confs = ivyConfigurations.value
-      val names = confs.map(_.name).toSet
-
-      // Yes, adding those back in sbt 1.0. Can't distinguish between config test (whose jars with classifier tests ought to
-      // be added), and sources / docs else (if their JARs are in compile, they would get added too then).
-
-      val extraSources =
-        if (names("sources"))
-          None
-        else
-          Some(
-            sbt.Configuration.of(
-              id = "Sources",
-              name = "sources",
-              description = "",
-              isPublic = true,
-              extendsConfigs = Vector.empty,
-              transitive = false
-            )
-          )
-
-      val extraDocs =
-        if (names("docs"))
-          None
-        else
-          Some(
-            sbt.Configuration.of(
-              id = "Docs",
-              name = "docs",
-              description = "",
-              isPublic = true,
-              extendsConfigs = Vector.empty,
-              transitive = false
-            )
-          )
-
-      confs ++ extraSources.toSeq ++ extraDocs.toSeq
-    },
-    // Tests artifacts from Maven repositories are given this type.
-    // Adding it here so that these work straightaway.
-    classpathTypes += "test-jar"
-  ) ++
-    (needsIvyXml ++ needsIvyXmlLocal).map(makeIvyXmlBefore(_, shadedConfigOpt))
+    ).value.head._2
+  )
 
   override lazy val buildSettings = super.buildSettings ++ Seq(
     coursierParallelDownloads := 6,
@@ -309,28 +199,11 @@ object CoursierPlugin extends AutoPlugin {
     coursierUseSbtCredentials := true,
     coursierCredentials := Map.empty,
     coursierCache := Cache.default,
-    coursierReorderResolvers := true,
-    coursierKeepPreloaded := false,
     coursierCreateLogger := { () => new TermDisplay(new OutputStreamWriter(System.err)) }
   )
 
-  override lazy val projectSettings = coursierSettings(None, Seq(Compile, Test).map(c => c -> Configuration(c.name))) ++
+  override lazy val projectSettings = coursierSettings() ++
     inConfig(Compile)(treeSettings) ++
     inConfig(Test)(treeSettings)
 
-
-  private lazy val needsIvyXmlLocal = Seq(publishLocalConfiguration) ++ getPubConf("makeIvyXmlLocalConfiguration")
-  private lazy val needsIvyXml = Seq(publishConfiguration) ++ getPubConf("makeIvyXmlConfiguration")
-
-  private[this] def getPubConf(method: String): List[TaskKey[PublishConfiguration]] =
-    try {
-      val cls = Keys.getClass
-      val m = cls.getMethod(method)
-      val task = m.invoke(Keys).asInstanceOf[TaskKey[PublishConfiguration]]
-      List(task)
-    } catch {
-      case _: Throwable => // FIXME Too wide
-        Nil
-    }
-
 }
diff --git a/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/DisplayTasks.scala b/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/DisplayTasks.scala
index a949e43a2..1e853a1e7 100644
--- a/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/DisplayTasks.scala
+++ b/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/DisplayTasks.scala
@@ -3,6 +3,7 @@ package coursier.sbtcoursier
 import coursier.core._
 import coursier.lmcoursier._
 import coursier.sbtcoursier.Keys._
+import coursier.sbtcoursiershared.SbtCoursierShared.autoImport._
 import coursier.util.Print.Colors
 import coursier.util.{Parse, Print}
 import sbt.Def
diff --git a/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/InputsTasks.scala b/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/InputsTasks.scala
index 28d6cf9c8..e78f61727 100644
--- a/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/InputsTasks.scala
+++ b/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/InputsTasks.scala
@@ -6,71 +6,14 @@ import coursier.ProjectCache
 import coursier.core._
 import coursier.lmcoursier._
 import coursier.sbtcoursier.Keys._
-import coursier.sbtcoursier.Structure._
+import coursier.sbtcoursiershared.SbtCoursierShared.autoImport._
+import coursier.sbtcoursiershared.Structure._
 import sbt.librarymanagement.{Configuration => _, _}
 import sbt.Def
 import sbt.Keys._
 
 object InputsTasks {
 
-  def coursierFallbackDependenciesTask: Def.Initialize[sbt.Task[Seq[(Module, String, URL, Boolean)]]] =
-    Def.taskDyn {
-
-      val state = sbt.Keys.state.value
-      val projectRef = sbt.Keys.thisProjectRef.value
-
-      val projects = Structure.allRecursiveInterDependencies(state, projectRef)
-
-      val allDependenciesTask = allDependencies
-        .forAllProjects(state, projectRef +: projects)
-        .map(_.values.toVector.flatten)
-
-      Def.task {
-        val allDependencies = allDependenciesTask.value
-
-        FromSbt.fallbackDependencies(
-          allDependencies,
-          scalaVersion.in(projectRef).get(state),
-          scalaBinaryVersion.in(projectRef).get(state)
-        )
-      }
-    }
-
-  def coursierProjectTask: Def.Initialize[sbt.Task[Project]] =
-    Def.taskDyn {
-
-      val state = sbt.Keys.state.value
-      val projectRef = sbt.Keys.thisProjectRef.value
-
-      val allDependenciesTask = allDependencies.in(projectRef).get(state)
-
-      Def.task {
-        Inputs.coursierProject(
-          projectID.in(projectRef).get(state),
-          allDependenciesTask.value,
-          excludeDependencies.in(projectRef).get(state),
-          // should projectID.configurations be used instead?
-          ivyConfigurations.in(projectRef).get(state),
-          scalaVersion.in(projectRef).get(state),
-          scalaBinaryVersion.in(projectRef).get(state),
-          state.log
-        )
-      }
-    }
-
-  def coursierInterProjectDependenciesTask: Def.Initialize[sbt.Task[Seq[Project]]] =
-    Def.taskDyn {
-
-      val state = sbt.Keys.state.value
-      val projectRef = sbt.Keys.thisProjectRef.value
-
-      val projects = Structure.allRecursiveInterDependencies(state, projectRef)
-
-      val t = coursierProject.forAllProjects(state, projects).map(_.values.toVector)
-
-      Def.task(t.value)
-    }
-
   def coursierConfigurationsTask(
     shadedConfig: Option[(String, Configuration)]
   ): Def.Initialize[sbt.Task[Map[Configuration, Set[Configuration]]]] =
diff --git a/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/Keys.scala b/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/Keys.scala
index dbc81a5f8..ef2727385 100644
--- a/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/Keys.scala
+++ b/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/Keys.scala
@@ -17,31 +17,18 @@ object Keys {
   val coursierArtifactsChecksums = SettingKey[Seq[Option[String]]]("coursier-artifacts-checksums")
   val coursierCachePolicies = SettingKey[Seq[CachePolicy]]("coursier-cache-policies")
   val coursierTtl = SettingKey[Option[Duration]]("coursier-ttl")
-  val coursierKeepPreloaded = SettingKey[Boolean]("coursier-keep-preloaded", "Whether to take into account sbt preloaded repositories or not")
   val coursierCreateLogger = TaskKey[() => Cache.Logger]("coursier-create-logger")
 
   val coursierVerbosity = SettingKey[Int]("coursier-verbosity")
 
   val mavenProfiles = SettingKey[Set[String]]("maven-profiles")
 
-  val coursierReorderResolvers = SettingKey[Boolean](
-    "coursier-reorder-resolvers",
-    "Whether resolvers should be re-ordered so that typically slow ones are given a lower priority"
-  )
-  val coursierResolvers = TaskKey[Seq[Resolver]]("coursier-resolvers")
-  val coursierRecursiveResolvers = TaskKey[Seq[Resolver]]("coursier-recursive-resolvers", "Resolvers of the current project, plus those of all from its inter-dependency projects")
-  val coursierSbtResolvers = TaskKey[Seq[Resolver]]("coursier-sbt-resolvers")
   val coursierUseSbtCredentials = SettingKey[Boolean]("coursier-use-sbt-credentials")
   val coursierCredentials = TaskKey[Map[String, Credentials]]("coursier-credentials")
 
   val coursierCache = SettingKey[File]("coursier-cache")
 
-  val coursierFallbackDependencies = TaskKey[Seq[(Module, String, URL, Boolean)]]("coursier-fallback-dependencies")
-
-  val coursierProject = TaskKey[Project]("coursier-project")
   val coursierConfigGraphs = TaskKey[Seq[Set[Configuration]]]("coursier-config-graphs")
-  val coursierInterProjectDependencies = TaskKey[Seq[Project]]("coursier-inter-project-dependencies", "Projects the current project depends on, possibly transitively")
-  val coursierPublications = TaskKey[Seq[(Configuration, Publication)]]("coursier-publications")
 
   val coursierSbtClassifiersModule = TaskKey[GetClassifiersModule]("coursier-sbt-classifiers-module")
 
diff --git a/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/ResolutionTasks.scala b/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/ResolutionTasks.scala
index 115d643cb..3588d2ae0 100644
--- a/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/ResolutionTasks.scala
+++ b/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/ResolutionTasks.scala
@@ -9,6 +9,7 @@ import coursier.ivy.IvyRepository
 import coursier.lmcoursier._
 import coursier.maven.MavenRepository
 import coursier.sbtcoursier.Keys._
+import coursier.sbtcoursiershared.SbtCoursierShared.autoImport._
 import sbt.Def
 import sbt.Keys._
 
@@ -20,7 +21,7 @@ object ResolutionTasks {
     sbtClassifiers: Boolean = false
   ): Def.Initialize[sbt.Task[Map[Set[Configuration], coursier.Resolution]]] = {
 
-    val currentProjectTask: sbt.Def.Initialize[sbt.Task[(Project, Seq[(Module, String, URL, Boolean)], Seq[Set[Configuration]])]] =
+    val currentProjectTask: sbt.Def.Initialize[sbt.Task[(Project, Seq[FallbackDependency], Seq[Set[Configuration]])]] =
       if (sbtClassifiers)
         Def.task {
           val sv = scalaVersion.value
diff --git a/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/UpdateTasks.scala b/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/UpdateTasks.scala
index 0a0e38d56..84928a14f 100644
--- a/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/UpdateTasks.scala
+++ b/modules/sbt-coursier/src/main/scala/coursier/sbtcoursier/UpdateTasks.scala
@@ -3,6 +3,7 @@ package coursier.sbtcoursier
 import coursier.core._
 import coursier.lmcoursier._
 import coursier.sbtcoursier.Keys._
+import coursier.sbtcoursiershared.SbtCoursierShared.autoImport._
 import sbt.Def
 import sbt.Keys._
 import sbt.librarymanagement.UpdateReport
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/sbt-assembly/project/project/plugins.sbt b/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/sbt-assembly/project/project/plugins.sbt
deleted file mode 100644
index 152225a9e..000000000
--- a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/sbt-assembly/project/project/plugins.sbt
+++ /dev/null
@@ -1,11 +0,0 @@
-{
-  val pluginVersion = sys.props.getOrElse(
-    "plugin.version",
-    throw new RuntimeException(
-      """|The system property 'plugin.version' is not defined.
-         |Specify this property using the scriptedLaunchOpts -D.""".stripMargin
-    )
-  )
-
-  addSbtPlugin("io.get-coursier" % "sbt-coursier" % pluginVersion)
-}
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/auto-scala-library/build.sbt b/modules/sbt-coursier/src/sbt-test/shared-1/auto-scala-library/build.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/auto-scala-library/build.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-1/auto-scala-library/build.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/auto-scala-library/project/plugins.sbt b/modules/sbt-coursier/src/sbt-test/shared-1/auto-scala-library/project/plugins.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/auto-scala-library/project/plugins.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-1/auto-scala-library/project/plugins.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/auto-scala-library/test b/modules/sbt-coursier/src/sbt-test/shared-1/auto-scala-library/test
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/auto-scala-library/test
rename to modules/sbt-coursier/src/sbt-test/shared-1/auto-scala-library/test
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/classifiers/build.sbt b/modules/sbt-coursier/src/sbt-test/shared-1/classifiers/build.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/classifiers/build.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-1/classifiers/build.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/classifiers/project/plugins.sbt b/modules/sbt-coursier/src/sbt-test/shared-1/classifiers/project/plugins.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/classifiers/project/plugins.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-1/classifiers/project/plugins.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/classifiers/src/main/scala/Main.scala b/modules/sbt-coursier/src/sbt-test/shared-1/classifiers/src/main/scala/Main.scala
similarity index 59%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/classifiers/src/main/scala/Main.scala
rename to modules/sbt-coursier/src/sbt-test/shared-1/classifiers/src/main/scala/Main.scala
index 7fedd9551..b1a40797d 100644
--- a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/classifiers/src/main/scala/Main.scala
+++ b/modules/sbt-coursier/src/sbt-test/shared-1/classifiers/src/main/scala/Main.scala
@@ -11,7 +11,8 @@ object Main extends App {
       .loadClass(clsName)
   ).toOption.nonEmpty
 
-  val classifierTest = classFound("org.jclouds.openstack.nova.functions.ParseServerFromJsonResponseTest")
+  val name = "org.jclouds.openstack.nova.functions.ParseServerFromJsonResponseTest"
+  val classifierTest = classFound(name)
 
-  assert(classifierTest, s"Couldn't find classifierTest")
+  assert(classifierTest, s"Couldn't find $name")
 }
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/classifiers/test b/modules/sbt-coursier/src/sbt-test/shared-1/classifiers/test
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/classifiers/test
rename to modules/sbt-coursier/src/sbt-test/shared-1/classifiers/test
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/clean/build.sbt b/modules/sbt-coursier/src/sbt-test/shared-1/clean/build.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/clean/build.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-1/clean/build.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/clean/project/Helper.scala b/modules/sbt-coursier/src/sbt-test/shared-1/clean/project/Helper.scala
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/clean/project/Helper.scala
rename to modules/sbt-coursier/src/sbt-test/shared-1/clean/project/Helper.scala
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/clean/project/plugins.sbt b/modules/sbt-coursier/src/sbt-test/shared-1/clean/project/plugins.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/clean/project/plugins.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-1/clean/project/plugins.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/clean/test b/modules/sbt-coursier/src/sbt-test/shared-1/clean/test
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/clean/test
rename to modules/sbt-coursier/src/sbt-test/shared-1/clean/test
diff --git a/modules/sbt-coursier/src/sbt-test/shared-1/config-deps-resolution/project/src/main/scala/sbt/MyPlugin.scala b/modules/sbt-coursier/src/sbt-test/shared-1/config-deps-resolution/project/src/main/scala/sbt/MyPlugin.scala
index 342c802a9..816e06f4f 100644
--- a/modules/sbt-coursier/src/sbt-test/shared-1/config-deps-resolution/project/src/main/scala/sbt/MyPlugin.scala
+++ b/modules/sbt-coursier/src/sbt-test/shared-1/config-deps-resolution/project/src/main/scala/sbt/MyPlugin.scala
@@ -9,7 +9,7 @@ object MyPlugin extends AutoPlugin {
 
   val FooConfig = config("foo")
 
-  override def projectSettings = Seq(
+  override def projectSettings = Seq[Setting[_]](
     libraryDependencies ++= Seq(
       "org.slf4j" % "slf4j-api" % "1.7.0",
       "ch.qos.logback" % "logback-classic" % "1.1.7"
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/exclude-dependencies/build.sbt b/modules/sbt-coursier/src/sbt-test/shared-1/exclude-dependencies/build.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/exclude-dependencies/build.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-1/exclude-dependencies/build.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/exclude-dependencies/coursier b/modules/sbt-coursier/src/sbt-test/shared-1/exclude-dependencies/coursier
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/exclude-dependencies/coursier
rename to modules/sbt-coursier/src/sbt-test/shared-1/exclude-dependencies/coursier
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/exclude-dependencies/project/plugins.sbt b/modules/sbt-coursier/src/sbt-test/shared-1/exclude-dependencies/project/plugins.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/exclude-dependencies/project/plugins.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-1/exclude-dependencies/project/plugins.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/exclude-dependencies/src/main/scala/Main.scala b/modules/sbt-coursier/src/sbt-test/shared-1/exclude-dependencies/src/main/scala/Main.scala
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/exclude-dependencies/src/main/scala/Main.scala
rename to modules/sbt-coursier/src/sbt-test/shared-1/exclude-dependencies/src/main/scala/Main.scala
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/exclude-dependencies/test b/modules/sbt-coursier/src/sbt-test/shared-1/exclude-dependencies/test
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/exclude-dependencies/test
rename to modules/sbt-coursier/src/sbt-test/shared-1/exclude-dependencies/test
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/fallback-dependencies-inter-project/a/src/main/scala/A.scala b/modules/sbt-coursier/src/sbt-test/shared-1/fallback-dependencies-inter-project/a/src/main/scala/A.scala
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/fallback-dependencies-inter-project/a/src/main/scala/A.scala
rename to modules/sbt-coursier/src/sbt-test/shared-1/fallback-dependencies-inter-project/a/src/main/scala/A.scala
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/fallback-dependencies-inter-project/b/src/main/scala/Main.scala b/modules/sbt-coursier/src/sbt-test/shared-1/fallback-dependencies-inter-project/b/src/main/scala/Main.scala
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/fallback-dependencies-inter-project/b/src/main/scala/Main.scala
rename to modules/sbt-coursier/src/sbt-test/shared-1/fallback-dependencies-inter-project/b/src/main/scala/Main.scala
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/fallback-dependencies-inter-project/build.sbt b/modules/sbt-coursier/src/sbt-test/shared-1/fallback-dependencies-inter-project/build.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/fallback-dependencies-inter-project/build.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-1/fallback-dependencies-inter-project/build.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/fallback-dependencies-inter-project/project/plugins.sbt b/modules/sbt-coursier/src/sbt-test/shared-1/fallback-dependencies-inter-project/project/plugins.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/fallback-dependencies-inter-project/project/plugins.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-1/fallback-dependencies-inter-project/project/plugins.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/fallback-dependencies-inter-project/test b/modules/sbt-coursier/src/sbt-test/shared-1/fallback-dependencies-inter-project/test
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/fallback-dependencies-inter-project/test
rename to modules/sbt-coursier/src/sbt-test/shared-1/fallback-dependencies-inter-project/test
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/from-no-head/build.sbt b/modules/sbt-coursier/src/sbt-test/shared-1/from-no-head/build.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/from-no-head/build.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-1/from-no-head/build.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/from-no-head/project/plugins.sbt b/modules/sbt-coursier/src/sbt-test/shared-1/from-no-head/project/plugins.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/from-no-head/project/plugins.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-1/from-no-head/project/plugins.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/from-no-head/src/main/scala/Main.scala b/modules/sbt-coursier/src/sbt-test/shared-1/from-no-head/src/main/scala/Main.scala
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/from-no-head/src/main/scala/Main.scala
rename to modules/sbt-coursier/src/sbt-test/shared-1/from-no-head/src/main/scala/Main.scala
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/from-no-head/test b/modules/sbt-coursier/src/sbt-test/shared-1/from-no-head/test
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/from-no-head/test
rename to modules/sbt-coursier/src/sbt-test/shared-1/from-no-head/test
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/from/build.sbt b/modules/sbt-coursier/src/sbt-test/shared-1/from/build.sbt
similarity index 81%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/from/build.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-1/from/build.sbt
index 48ee29d9f..d400b6054 100644
--- a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/from/build.sbt
+++ b/modules/sbt-coursier/src/sbt-test/shared-1/from/build.sbt
@@ -2,11 +2,9 @@ scalaVersion := "2.11.8"
 
 libraryDependencies += "com.chuusai" %% "shapeless" % "2.3.41" from {
   
-  val f = file(sys.props("sbttest.base")) / "sbt-coursier-group-1" / "from" / "shapeless_2.11-2.3.0.jar"
+  val f = file("shapeless_2.11-2.3.0.jar")
 
   if (!f.exists()) {
-    f.getParentFile.mkdirs()
-
     val url0 = "https://repo1.maven.org/maven2/com/chuusai/shapeless_2.11/2.3.0/shapeless_2.11-2.3.0.jar"
 
     sLog.value.warn(s"Fetching $url0")
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/from/project/plugins.sbt b/modules/sbt-coursier/src/sbt-test/shared-1/from/project/plugins.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/from/project/plugins.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-1/from/project/plugins.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/from/src/main/scala/Main.scala b/modules/sbt-coursier/src/sbt-test/shared-1/from/src/main/scala/Main.scala
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/from/src/main/scala/Main.scala
rename to modules/sbt-coursier/src/sbt-test/shared-1/from/src/main/scala/Main.scala
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/from/test b/modules/sbt-coursier/src/sbt-test/shared-1/from/test
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/from/test
rename to modules/sbt-coursier/src/sbt-test/shared-1/from/test
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/inter-project-resolvers/a/src/main/scala/A.scala b/modules/sbt-coursier/src/sbt-test/shared-1/inter-project-resolvers/a/src/main/scala/A.scala
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/inter-project-resolvers/a/src/main/scala/A.scala
rename to modules/sbt-coursier/src/sbt-test/shared-1/inter-project-resolvers/a/src/main/scala/A.scala
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/inter-project-resolvers/b/src/main/scala/Main.scala b/modules/sbt-coursier/src/sbt-test/shared-1/inter-project-resolvers/b/src/main/scala/Main.scala
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/inter-project-resolvers/b/src/main/scala/Main.scala
rename to modules/sbt-coursier/src/sbt-test/shared-1/inter-project-resolvers/b/src/main/scala/Main.scala
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/inter-project-resolvers/build.sbt b/modules/sbt-coursier/src/sbt-test/shared-1/inter-project-resolvers/build.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/inter-project-resolvers/build.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-1/inter-project-resolvers/build.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/inter-project-resolvers/project/plugins.sbt b/modules/sbt-coursier/src/sbt-test/shared-1/inter-project-resolvers/project/plugins.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/inter-project-resolvers/project/plugins.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-1/inter-project-resolvers/project/plugins.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/inter-project-resolvers/test b/modules/sbt-coursier/src/sbt-test/shared-1/inter-project-resolvers/test
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/inter-project-resolvers/test
rename to modules/sbt-coursier/src/sbt-test/shared-1/inter-project-resolvers/test
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/inter-project/a/src/main/scala/A.scala b/modules/sbt-coursier/src/sbt-test/shared-1/inter-project/a/src/main/scala/A.scala
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/inter-project/a/src/main/scala/A.scala
rename to modules/sbt-coursier/src/sbt-test/shared-1/inter-project/a/src/main/scala/A.scala
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/inter-project/b/src/main/scala/Main.scala b/modules/sbt-coursier/src/sbt-test/shared-1/inter-project/b/src/main/scala/Main.scala
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/inter-project/b/src/main/scala/Main.scala
rename to modules/sbt-coursier/src/sbt-test/shared-1/inter-project/b/src/main/scala/Main.scala
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/inter-project/build.sbt b/modules/sbt-coursier/src/sbt-test/shared-1/inter-project/build.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/inter-project/build.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-1/inter-project/build.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/inter-project/project/plugins.sbt b/modules/sbt-coursier/src/sbt-test/shared-1/inter-project/project/plugins.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/inter-project/project/plugins.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-1/inter-project/project/plugins.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/inter-project/test b/modules/sbt-coursier/src/sbt-test/shared-1/inter-project/test
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-1/inter-project/test
rename to modules/sbt-coursier/src/sbt-test/shared-1/inter-project/test
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-signed/README b/modules/sbt-coursier/src/sbt-test/shared-2/publish-local-signed/README
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-signed/README
rename to modules/sbt-coursier/src/sbt-test/shared-2/publish-local-signed/README
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-signed/build.sbt b/modules/sbt-coursier/src/sbt-test/shared-2/publish-local-signed/build.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-signed/build.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-2/publish-local-signed/build.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-signed/project/extra.sbt b/modules/sbt-coursier/src/sbt-test/shared-2/publish-local-signed/project/extra.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-signed/project/extra.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-2/publish-local-signed/project/extra.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-signed/project/plugins.sbt b/modules/sbt-coursier/src/sbt-test/shared-2/publish-local-signed/project/plugins.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-signed/project/plugins.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-2/publish-local-signed/project/plugins.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-signed/pubring.pgp b/modules/sbt-coursier/src/sbt-test/shared-2/publish-local-signed/pubring.pgp
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-signed/pubring.pgp
rename to modules/sbt-coursier/src/sbt-test/shared-2/publish-local-signed/pubring.pgp
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-signed/secring.pgp b/modules/sbt-coursier/src/sbt-test/shared-2/publish-local-signed/secring.pgp
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-signed/secring.pgp
rename to modules/sbt-coursier/src/sbt-test/shared-2/publish-local-signed/secring.pgp
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-signed/src/main/scala/Foo.scala b/modules/sbt-coursier/src/sbt-test/shared-2/publish-local-signed/src/main/scala/Foo.scala
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-signed/src/main/scala/Foo.scala
rename to modules/sbt-coursier/src/sbt-test/shared-2/publish-local-signed/src/main/scala/Foo.scala
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-signed/test b/modules/sbt-coursier/src/sbt-test/shared-2/publish-local-signed/test
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-signed/test
rename to modules/sbt-coursier/src/sbt-test/shared-2/publish-local-signed/test
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-sources-javadoc-conf/build.sbt b/modules/sbt-coursier/src/sbt-test/shared-2/publish-local-sources-javadoc-conf/build.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-sources-javadoc-conf/build.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-2/publish-local-sources-javadoc-conf/build.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-sources-javadoc-conf/project/plugins.sbt b/modules/sbt-coursier/src/sbt-test/shared-2/publish-local-sources-javadoc-conf/project/plugins.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-sources-javadoc-conf/project/plugins.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-2/publish-local-sources-javadoc-conf/project/plugins.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-sources-javadoc-conf/test b/modules/sbt-coursier/src/sbt-test/shared-2/publish-local-sources-javadoc-conf/test
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/publish-local-sources-javadoc-conf/test
rename to modules/sbt-coursier/src/sbt-test/shared-2/publish-local-sources-javadoc-conf/test
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/sbt-assembly/build.sbt b/modules/sbt-coursier/src/sbt-test/shared-2/sbt-assembly/build.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/sbt-assembly/build.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-2/sbt-assembly/build.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/sbt-assembly/project/extra.sbt b/modules/sbt-coursier/src/sbt-test/shared-2/sbt-assembly/project/extra.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/sbt-assembly/project/extra.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-2/sbt-assembly/project/extra.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/sbt-assembly/project/plugins.sbt b/modules/sbt-coursier/src/sbt-test/shared-2/sbt-assembly/project/plugins.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/sbt-assembly/project/plugins.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-2/sbt-assembly/project/plugins.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/scala-sources-javadoc-jars/project/plugins.sbt b/modules/sbt-coursier/src/sbt-test/shared-2/sbt-assembly/project/project/plugins.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/scala-sources-javadoc-jars/project/plugins.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-2/sbt-assembly/project/project/plugins.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/sbt-assembly/test b/modules/sbt-coursier/src/sbt-test/shared-2/sbt-assembly/test
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/sbt-assembly/test
rename to modules/sbt-coursier/src/sbt-test/shared-2/sbt-assembly/test
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/scala-sources-javadoc-jars/build.sbt b/modules/sbt-coursier/src/sbt-test/shared-2/scala-sources-javadoc-jars/build.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/scala-sources-javadoc-jars/build.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-2/scala-sources-javadoc-jars/build.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/tests-classifier/project/plugins.sbt b/modules/sbt-coursier/src/sbt-test/shared-2/scala-sources-javadoc-jars/project/plugins.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/tests-classifier/project/plugins.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-2/scala-sources-javadoc-jars/project/plugins.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/scala-sources-javadoc-jars/src/main/scala/Main.scala b/modules/sbt-coursier/src/sbt-test/shared-2/scala-sources-javadoc-jars/src/main/scala/Main.scala
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/scala-sources-javadoc-jars/src/main/scala/Main.scala
rename to modules/sbt-coursier/src/sbt-test/shared-2/scala-sources-javadoc-jars/src/main/scala/Main.scala
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/scala-sources-javadoc-jars/test b/modules/sbt-coursier/src/sbt-test/shared-2/scala-sources-javadoc-jars/test
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/scala-sources-javadoc-jars/test
rename to modules/sbt-coursier/src/sbt-test/shared-2/scala-sources-javadoc-jars/test
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/tests-classifier/a/src/main/scala/a/A.scala b/modules/sbt-coursier/src/sbt-test/shared-2/tests-classifier/a/src/main/scala/a/A.scala
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/tests-classifier/a/src/main/scala/a/A.scala
rename to modules/sbt-coursier/src/sbt-test/shared-2/tests-classifier/a/src/main/scala/a/A.scala
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/tests-classifier/a/src/test/scala/a/ATest.scala b/modules/sbt-coursier/src/sbt-test/shared-2/tests-classifier/a/src/test/scala/a/ATest.scala
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/tests-classifier/a/src/test/scala/a/ATest.scala
rename to modules/sbt-coursier/src/sbt-test/shared-2/tests-classifier/a/src/test/scala/a/ATest.scala
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/tests-classifier/b/src/main/scala/b/B.scala b/modules/sbt-coursier/src/sbt-test/shared-2/tests-classifier/b/src/main/scala/b/B.scala
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/tests-classifier/b/src/main/scala/b/B.scala
rename to modules/sbt-coursier/src/sbt-test/shared-2/tests-classifier/b/src/main/scala/b/B.scala
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/tests-classifier/b/src/test/scala/b/BTest.scala b/modules/sbt-coursier/src/sbt-test/shared-2/tests-classifier/b/src/test/scala/b/BTest.scala
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/tests-classifier/b/src/test/scala/b/BTest.scala
rename to modules/sbt-coursier/src/sbt-test/shared-2/tests-classifier/b/src/test/scala/b/BTest.scala
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/tests-classifier/build.sbt b/modules/sbt-coursier/src/sbt-test/shared-2/tests-classifier/build.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/tests-classifier/build.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-2/tests-classifier/build.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/update-sbt-classifiers/project/plugins.sbt b/modules/sbt-coursier/src/sbt-test/shared-2/tests-classifier/project/plugins.sbt
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/update-sbt-classifiers/project/plugins.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-2/tests-classifier/project/plugins.sbt
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/tests-classifier/test b/modules/sbt-coursier/src/sbt-test/shared-2/tests-classifier/test
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/tests-classifier/test
rename to modules/sbt-coursier/src/sbt-test/shared-2/tests-classifier/test
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/update-sbt-classifiers/build.sbt b/modules/sbt-coursier/src/sbt-test/shared-2/update-sbt-classifiers/build.sbt
similarity index 93%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/update-sbt-classifiers/build.sbt
rename to modules/sbt-coursier/src/sbt-test/shared-2/update-sbt-classifiers/build.sbt
index 4cf6b148b..0c59d622c 100644
--- a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/update-sbt-classifiers/build.sbt
+++ b/modules/sbt-coursier/src/sbt-test/shared-2/update-sbt-classifiers/build.sbt
@@ -40,5 +40,5 @@ updateSbtClassifiersCheck := {
 
   ensureHasArtifact("org.scala-lang", "scala-library")
   ensureHasArtifact("io.get-coursier", "coursier-core_" + scalaBinaryVersion.value)
-  ensureHasArtifact("io.get-coursier", "sbt-coursier")
+  ensureHasArtifact("io.get-coursier", "lm-coursier_" + scalaBinaryVersion.value)
 }
diff --git a/modules/sbt-coursier/src/sbt-test/shared-2/update-sbt-classifiers/project/plugins.sbt b/modules/sbt-coursier/src/sbt-test/shared-2/update-sbt-classifiers/project/plugins.sbt
new file mode 100644
index 000000000..71a44ffd3
--- /dev/null
+++ b/modules/sbt-coursier/src/sbt-test/shared-2/update-sbt-classifiers/project/plugins.sbt
@@ -0,0 +1,13 @@
+addSbtPlugin {
+
+  val name = sys.props.getOrElse(
+    "plugin.name",
+    sys.error("plugin.name Java property not set")
+  )
+  val version = sys.props.getOrElse(
+    "plugin.version",
+    sys.error("plugin.version Java property not set")
+  )
+
+  "io.get-coursier" % name % version
+}
\ No newline at end of file
diff --git a/modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/update-sbt-classifiers/test b/modules/sbt-coursier/src/sbt-test/shared-2/update-sbt-classifiers/test
similarity index 100%
rename from modules/sbt-coursier/src/sbt-test/sbt-coursier-group-2/update-sbt-classifiers/test
rename to modules/sbt-coursier/src/sbt-test/shared-2/update-sbt-classifiers/test
diff --git a/modules/sbt-lm-coursier/src/main/scala/coursier/sbtlmcoursier/LmCoursierPlugin.scala b/modules/sbt-lm-coursier/src/main/scala/coursier/sbtlmcoursier/LmCoursierPlugin.scala
index 86dcc8d07..249257bf0 100644
--- a/modules/sbt-lm-coursier/src/main/scala/coursier/sbtlmcoursier/LmCoursierPlugin.scala
+++ b/modules/sbt-lm-coursier/src/main/scala/coursier/sbtlmcoursier/LmCoursierPlugin.scala
@@ -1,9 +1,12 @@
 package coursier.sbtlmcoursier
 
-import coursier.lmcoursier.{CoursierConfiguration, CoursierDependencyResolution}
-import sbt.{AutoPlugin, Classpaths, Def, Task, taskKey}
+import coursier.core.Classifier
+import coursier.lmcoursier.{CoursierConfiguration, CoursierDependencyResolution, Inputs}
+import coursier.sbtcoursiershared.SbtCoursierShared
+import sbt.{AutoPlugin, Classpaths, Def, Setting, Task, taskKey}
+import sbt.Project.inTask
 import sbt.KeyRanks.DTask
-import sbt.Keys.{dependencyResolution, fullResolvers, otherResolvers, streams}
+import sbt.Keys.{appConfiguration, autoScalaLibrary, dependencyResolution, excludeDependencies, scalaBinaryVersion, scalaVersion, streams, updateClassifiers, updateSbtClassifiers}
 import sbt.librarymanagement.DependencyResolution
 
 object LmCoursierPlugin extends AutoPlugin {
@@ -13,29 +16,91 @@ object LmCoursierPlugin extends AutoPlugin {
   }
 
   import autoImport._
+  import SbtCoursierShared.autoImport._
 
 
   override def trigger = allRequirements
 
-  // requiring IvyPlugin… to override it, and so that it doesn't override us :|
-  override def requires = sbt.plugins.IvyPlugin
+  // this transitively requires IvyPlugin… which is needed to override it,
+  // so that it doesn't override us :|
+  override def requires = SbtCoursierShared
 
   // putting this in projectSettings like sbt.plugins.IvyPlugin does :|
-  override def projectSettings = Seq(
-    dependencyResolution := mkDependencyResolution.value,
-    coursierConfiguration := mkCoursierConfiguration.value
-  )
+  override def projectSettings: Seq[Setting[_]] =
+    Seq(
+      dependencyResolution := mkDependencyResolution.value,
+      coursierConfiguration := mkCoursierConfiguration().value,
+      updateClassifiers := Def.taskDyn {
+        val lm = dependencyResolution.in(updateClassifiers).value
+        Def.task(sbt.hack.Foo.updateTask(lm).value)
+      }.value
+    ) ++
+    inTask(updateClassifiers)(
+      Seq(
+        dependencyResolution := mkDependencyResolution.value,
+        coursierConfiguration := mkCoursierConfiguration(withClassifiers = true).value
+      )
+    ) ++
+    inTask(updateSbtClassifiers)(
+      Seq(
+        dependencyResolution := mkDependencyResolution.value,
+        coursierConfiguration := mkCoursierConfiguration(sbtClassifiers = true).value
+      )
+    )
 
 
-  private def mkCoursierConfiguration: Def.Initialize[Task[CoursierConfiguration]] =
-    Def.task {
-      val (rs, other) = (fullResolvers.value.toVector, otherResolvers.value.toVector)
-      val s = streams.value
-      Classpaths.warnResolversConflict(rs ++: other, s.log)
-      CoursierConfiguration()
-        .withResolvers(rs)
-        .withOtherResolvers(other)
-        .withLog(s.log)
+  private def mkCoursierConfiguration(withClassifiers: Boolean = false, sbtClassifiers: Boolean = false): Def.Initialize[Task[CoursierConfiguration]] =
+    Def.taskDyn {
+      val resolversTask =
+        if (sbtClassifiers)
+          coursierSbtResolvers
+        else
+          coursierRecursiveResolvers
+      val classifiersTask: sbt.Def.Initialize[sbt.Task[Option[Seq[Classifier]]]] =
+        if (withClassifiers && !sbtClassifiers)
+          Def.task(Some(sbt.Keys.transitiveClassifiers.value.map(Classifier(_))))
+        else
+          Def.task(None)
+      Def.task {
+        val rs = resolversTask.value
+        val interProjectDependencies = coursierInterProjectDependencies.value
+        val excludeDeps = Inputs.exclusions(
+          excludeDependencies.value,
+          scalaVersion.value,
+          scalaBinaryVersion.value,
+          streams.value.log
+        )
+        val fallbackDeps = coursierFallbackDependencies.value
+        val autoScalaLib = autoScalaLibrary.value
+
+        val internalSbtScalaProvider = appConfiguration.value.provider.scalaProvider
+        val sbtBootJars = internalSbtScalaProvider.jars()
+        val sbtScalaVersion = internalSbtScalaProvider.version()
+        val sbtScalaOrganization = "org.scala-lang" // always assuming sbt uses mainline scala
+        val classifiers = classifiersTask.value
+        val s = streams.value
+        Classpaths.warnResolversConflict(rs, s.log)
+        CoursierConfiguration()
+          .withResolvers(rs.toVector)
+          .withInterProjectDependencies(interProjectDependencies.toVector)
+          .withFallbackDependencies(fallbackDeps.toVector)
+          .withExcludeDependencies(
+            excludeDeps
+              .toVector
+              .sorted
+              .map {
+                case (o, n) =>
+                  (o.value, n.value)
+              }
+          )
+          .withAutoScalaLibrary(autoScalaLib)
+          .withSbtScalaJars(sbtBootJars.toVector)
+          .withSbtScalaVersion(sbtScalaVersion)
+          .withSbtScalaOrganization(sbtScalaOrganization)
+          .withClassifiers(classifiers.toVector.flatten.map(_.value))
+          .withHasClassifiers(classifiers.nonEmpty)
+          .withLog(s.log)
+      }
     }
   private def mkDependencyResolution: Def.Initialize[Task[DependencyResolution]] =
     Def.task {
diff --git a/modules/sbt-lm-coursier/src/main/scala/sbt/hack/Foo.scala b/modules/sbt-lm-coursier/src/main/scala/sbt/hack/Foo.scala
new file mode 100644
index 000000000..b15e67b1e
--- /dev/null
+++ b/modules/sbt-lm-coursier/src/main/scala/sbt/hack/Foo.scala
@@ -0,0 +1,73 @@
+package sbt.hack
+
+import sbt._
+import sbt.Keys._
+import sbt.internal.LibraryManagement
+import sbt.librarymanagement.DependencyResolution
+
+object Foo {
+
+  // same implementation as update in sbt, except DependencyResolution is passed as argument
+  // and the unmanagedJarsTask stuff was removed (already handled in lm-coursier via
+  // SbtBootJars and all)
+  def updateTask(lm: DependencyResolution): Def.Initialize[Task[UpdateReport]] = Def.task {
+    val s = streams.value
+    val cacheDirectory = streams.value.cacheDirectory
+
+    val isRoot = executionRoots.value contains resolvedScoped.value
+    val shouldForce = isRoot || {
+      forceUpdatePeriod.value match {
+        case None => false
+        case Some(period) =>
+          val fullUpdateOutput = cacheDirectory / "out"
+          val now = System.currentTimeMillis
+          val diff = now - fullUpdateOutput.lastModified()
+          val elapsedDuration = new scala.concurrent.duration.FiniteDuration(diff, java.util.concurrent.TimeUnit.MILLISECONDS)
+          fullUpdateOutput.exists() && elapsedDuration > period
+      }
+    }
+
+    val state0 = state.value
+    val updateConf = {
+      // Log captures log messages at all levels, except ivy logs.
+      // Use full level when debug is enabled so that ivy logs are shown.
+      import UpdateLogging.{ Full, DownloadOnly, Default }
+      val conf = updateConfiguration.value
+      val maybeUpdateLevel = (logLevel in update).?.value
+      val conf1 = maybeUpdateLevel.orElse(state0.get(logLevel.key)) match {
+        case Some(Level.Debug) if conf.logging == Default => conf.withLogging(logging = Full)
+        case Some(_) if conf.logging == Default           => conf.withLogging(logging = DownloadOnly)
+        case _                                            => conf
+      }
+
+      // logical clock is folded into UpdateConfiguration
+      conf1.withLogicalClock(LogicalClock(state0.hashCode))
+    }
+
+    val evictionOptions = Def.taskDyn {
+      if (executionRoots.value.exists(_.key == evicted.key))
+        Def.task(EvictionWarningOptions.empty)
+      else Def.task((evictionWarningOptions in update).value)
+    }.value
+
+    LibraryManagement.cachedUpdate(
+      // LM API
+      lm = lm,
+      // Ivy-free ModuleDescriptor
+      module = ivyModule.value,
+      s.cacheStoreFactory.sub(updateCacheName.value),
+      Reference.display(thisProjectRef.value),
+      updateConf,
+      identity,
+      skip = (skip in update).value,
+      force = shouldForce,
+      depsUpdated = transitiveUpdate.value.exists(!_.stats.cached),
+      uwConfig = (unresolvedWarningConfiguration in update).value,
+      ewo = evictionOptions,
+      mavenStyle = publishMavenStyle.value,
+      compatWarning = compatibilityWarningOptions.value,
+      log = s.log
+    )
+  }
+
+}
diff --git a/modules/sbt-shading/src/main/scala/coursier/ShadingPlugin.scala b/modules/sbt-shading/src/main/scala/coursier/ShadingPlugin.scala
index e849ab80b..f27ef8b90 100644
--- a/modules/sbt-shading/src/main/scala/coursier/ShadingPlugin.scala
+++ b/modules/sbt-shading/src/main/scala/coursier/ShadingPlugin.scala
@@ -5,7 +5,7 @@ import java.io.File
 import coursier.core.{Configuration, Type}
 import coursier.ivy.IvyXml.{mappings => ivyXmlMappings}
 import coursier.sbtcoursier.{CoursierPlugin, InputsTasks, Keys}
-import sbt.librarymanagement._
+import coursier.sbtcoursiershared.{IvyXml, SbtCoursierShared}
 import sbt.Keys._
 import sbt.{AutoPlugin, Compile, SettingKey, TaskKey, inConfig}
 
@@ -13,7 +13,7 @@ object ShadingPlugin extends AutoPlugin {
 
   override def trigger = noTrigger
 
-  override def requires = sbt.plugins.IvyPlugin
+  override def requires = CoursierPlugin
 
   private val baseSbtConfiguration = Compile
   val Shading = sbt.Configuration.of(
@@ -73,6 +73,7 @@ object ShadingPlugin extends AutoPlugin {
   )
 
   import coursier.sbtcoursier.CoursierPlugin.autoImport._
+  import coursier.sbtcoursiershared.SbtCoursierShared.autoImport._
 
   override lazy val buildSettings = super.buildSettings ++ Seq(
     shadeNamespaces := Set()
@@ -96,16 +97,18 @@ object ShadingPlugin extends AutoPlugin {
         sbt.Classpaths.ivyBaseSettings ++
         sbt.Classpaths.ivyPublishSettings ++
         shadingJvmPublishSettings ++
+        SbtCoursierShared.settings(pubSettings = false) ++
         CoursierPlugin.coursierSettings(
-          Some(baseDependencyConfiguration.value -> Configuration(Shaded.name)),
-          Seq(Shading -> Configuration.compile)
+          Some(baseDependencyConfiguration.value -> Configuration(Shaded.name))
         ) ++
+        IvyXml.generateIvyXmlSettings(Some(Configuration(Shaded.name))) ++
+        Seq(SbtCoursierShared.publicationsSetting(Seq(Shading -> Configuration.compile))) ++
         CoursierPlugin.treeSettings ++
         Seq(
           configuration := baseSbtConfiguration, // wuw
           ivyConfigurations := ivyConfigurations.in(baseSbtConfiguration).value
             .filter(_.name != Shaded.name)
-            .map(c => c.withExtendsConfigs(c.extendsConfigs.toVector.filter(_.name != Shaded.name))),
+            .map(c => c.withExtendsConfigs(c.extendsConfigs.filter(_.name != Shaded.name))),
           libraryDependencies := libraryDependencies.in(baseSbtConfiguration).value.filter { dep =>
             val isShaded = dep.configurations.exists { mappings =>
               ivyXmlMappings(mappings).exists(_._1 == Configuration(Shaded.name))
diff --git a/scripts/travis.sh b/scripts/travis.sh
index 1cc647126..910cd9ebe 100755
--- a/scripts/travis.sh
+++ b/scripts/travis.sh
@@ -23,14 +23,14 @@ runLmCoursierTests() {
   ./metadata/scripts/with-test-repo.sh sbt \
     ++$TRAVIS_SCALA_VERSION \
     lm-coursier/test \
-    "sbt-lm-coursier/scripted shared-1/* shared-2/*"
+    "sbt-lm-coursier/scripted shared-$TEST_GROUP/*"
 }
 
 runSbtCoursierTests() {
   ./metadata/scripts/with-test-repo.sh sbt \
     ++$TRAVIS_SCALA_VERSION \
-    sbt-coursier/test \
-    "sbt-coursier/scripted shared-$SBT_COURSIER_TEST_GROUP/* sbt-coursier-group-$SBT_COURSIER_TEST_GROUP/*"
+    sbt-coursier-shared/test \
+    "sbt-coursier/scripted shared-$TEST_GROUP/* sbt-coursier-group-$TEST_GROUP/*"
 }
 
 runSbtShadingTests() {