Auto-create target .js files if not present.

Author: virtualirfan

src/main/scala/sri/sbt/platform/ConfigBuilder.scala

@@ -61,13 +61,15 @@ object ConfigBuilder {
         artifactPath in fullOptJS := baseDirectory.value / aPath,
         dev := {
           val indexFile = baseDirectory.value / entryFile
+          IO.touch(indexFile, setModified = false)
           val indexContent = IO.read(indexFile)
           (fastOptJS in config).value.data
           val launcher = s"""require("./$aPath");"""
           if (!indexContent.contains(launcher)) IO.append(indexFile, launcher)
         },
         prod := {
           val indexFile = baseDirectory.value / entryFile
+          IO.touch(indexFile, setModified = false)
           val indexContent = IO.read(indexFile)
           (fullOptJS in config).value.data
           val launcher = s"""require("./$aPath");"""