Fix filtering of licenseConfigurations (#141)

With the changes of #86, the filtering of configurations broke and test dependencies got reported even though licenseConfigurations was set to Set("compile"). This is due to the fact that the resolved Ivy deps not properly mirror the configurations the dependency was defined for. By selecting the configurations from the report early on, we restore the filtering.

Author: ybasket

src/main/scala/sbtlicensereport/license/LicenseReport.scala

@@ -316,15 +316,32 @@ object LicenseReport {
     }
   }
 
+  // TODO: Remove when https://github.com/sbt/librarymanagement/pull/547 is merged so we can properly filter
+  private def moduleKey(m: ModuleID) = (m.organization, m.name, m.revision)
+
+  private def allModuleReports(configurations: Vector[ConfigurationReport]): Vector[ModuleReport] =
+    configurations.flatMap(_.modules).groupBy(mR => moduleKey(mR.module)).toVector map { case (_, v) =>
+      v reduceLeft { (agg, x) =>
+        agg.withConfigurations(
+          (agg.configurations, x.configurations) match {
+            case (v, _) if v.isEmpty  => x.configurations
+            case (ac, v) if v.isEmpty => ac
+            case (ac, xc)             => ac ++ xc
+          }
+        )
+      }
+    }
+
   private def getLicenses(
       report: UpdateReport,
-      configs: Set[String] = Set.empty,
-      categories: Seq[LicenseCategory] = LicenseCategory.all,
+      configs: Set[String],
+      categories: Seq[LicenseCategory],
       originatingModule: DepModuleInfo,
       log: Logger
   ): Seq[DepLicense] = {
+    val relevantConfigurations = report.configurations.filter(c => configs.contains(c.configuration.name))
     for {
-      dep <- report.allModuleReports
+      dep <- allModuleReports(relevantConfigurations)
       report <- pickLicenseForDep(dep, configs, categories, originatingModule, log)
     } yield report
   }