Support for crossScalaVersions

README.md

@@ -2,6 +2,11 @@ sbt-updates [![Build Status](https://travis-ci.org/rtimush/sbt-updates.svg?branc
 ==================
 Display your SBT project's dependency updates.
 
+Update information is obtained from the maven metadata, so no updates for dependencies in Ivy repositories
+will be found.
+
+If your project uses `crossScalaVersions` you will be presented only with updates available for all scala versions. 
+
 Requirements
 ==============
 SBT 0.13.5 and later
@@ -16,7 +21,7 @@ Add the following line to one of these files:
 - Your global file at `~/.sbt/0.13/plugins/sbt-updates.sbt`
 
 ```
-addSbtPlugin("com.timushev.sbt" % "sbt-updates" % "0.1.10")
+addSbtPlugin("com.timushev.sbt" % "sbt-updates" % "0.2.0")
 ```
 
 ### Snapshot version

notes/0.2.0.markdown

@@ -0,0 +1,11 @@
+sbt-updates 0.2.0 has been released:
+
+ * If your project uses `crossScalaVersions` you will be presented only with updates available for all scala versions.
+ * Unsupported protocols such as `ftp://` or `s3://` do not cause errors anymore.  
+
+Updates report example:
+
+    > dependencyUpdates
+    [info] Found 3 dependency updates for test-project
+    [info]   ch.qos.logback:logback-classic : 0.8   -> 0.8.1 -> 0.9.30 -> 1.0.13
+    [info]   org.slf4j:slf4j-api            : 1.6.4 -> 1.6.6 -> 1.7.5

src/main/scala/com/timushev/sbt/updates/Reporter.scala

@@ -17,14 +17,20 @@ object Reporter {
                             dependencies: Seq[ModuleID],
                             resolvers: Seq[Resolver],
                             credentials: Seq[Credentials],
-                            scalaFullVersion: String,
-                            scalaBinaryVersion: String,
+                            scalaVersions: Seq[String],
                             excluded: ModuleFilter,
                             allowPreRelease: Boolean,
                             out: TaskStreams[_]): Map[ModuleID, SortedSet[Version]] = {
-    val crossDependencies = dependencies.map(CrossVersion(scalaFullVersion, scalaBinaryVersion))
     val loaders = resolvers collect MetadataLoaderFactory.loader(out.log, credentials)
-    val updatesFuture = Future.sequence(crossDependencies map findUpdates(loaders, allowPreRelease))
+    val updatesFuture = Future.sequence(scalaVersions map { scalaVersion =>
+      val crossVersion = CrossVersion(scalaVersion, CrossVersion.binaryScalaVersion(scalaVersion))
+      val crossDependencies = dependencies map crossVersion
+      Future.sequence(crossDependencies map findUpdates(loaders, allowPreRelease))
+    }) map { crossUpdates =>
+      crossUpdates.transpose map { updates =>
+        updates reduce (_ intersect _)
+      }
+    }
     val updates = Await.result(updatesFuture, 1.hour)
     (dependencies zip updates)
       .toMap

src/main/scala/com/timushev/sbt/updates/UpdatesPluginTasks.scala

@@ -1,12 +1,12 @@
 package com.timushev.sbt.updates
 
-import sbt.Keys._
 import com.timushev.sbt.updates.UpdatesKeys._
+import sbt.Keys._
 
 trait UpdatesPluginTasks {
 
   def dependencyUpdatesDataTask =
-    (projectID, libraryDependencies, externalResolvers, credentials, scalaVersion, scalaBinaryVersion, dependencyUpdatesExclusions, dependencyAllowPreRelease, streams)
+    (projectID, libraryDependencies, externalResolvers, credentials, crossScalaVersions, dependencyUpdatesExclusions, dependencyAllowPreRelease, streams)
       .map(Reporter.dependencyUpdatesData)
 
   def dependencyUpdatesTask =

src/sbt-test/updates/cross/build.sbt

@@ -0,0 +1,24 @@
+import com.timushev.sbt.updates.versions.Version
+
+scalaVersion := "2.10.4"
+crossScalaVersions := Seq("2.10.4", "2.11.5")
+
+libraryDependencies += "org.specs2" %% "specs2" % "3.1"
+
+TaskKey[Unit]("check") := {
+  val updates = dependencyUpdatesData.value
+  val found = updates.keys exists {
+    case m if m.organization == "org.scala-lang" => false
+    case m if m.organization == "org.specs2" =>
+      val versions = updates(m)
+      if (versions.contains(Version("3.7")))
+        sys.error(s"Wrong update versions: $versions")
+      true
+    case other =>
+      sys.error(s"Wrong update key: $other")
+      false
+  }
+  if (!found)
+    sys.error("No updates for specs2 found")
+  ()
+}

src/sbt-test/updates/cross/project/plugins.sbt

@@ -0,0 +1 @@
+addSbtPlugin("com.timushev.sbt" % "sbt-updates" % "latest.integration")

src/sbt-test/updates/cross/test

@@ -0,0 +1 @@
+> check