diff options
| -rw-r--r-- | stage2/PackageJars.scala | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/stage2/PackageJars.scala b/stage2/PackageJars.scala index 221920b..5b3ba39 100644 --- a/stage2/PackageJars.scala +++ b/stage2/PackageJars.scala @@ -13,16 +13,23 @@ trait PackageJars extends BaseBuild with ArtifactInfo{ def jarFilePrefix = artifactId++"_"++scalaMajorVersion++"-"++version def jar: Option[File] = taskCache[PackageJars]("jar").memoize{ - lib.createJar( jarTarget / jarFilePrefix++".jar", exportedClasspath.files ) + val file = jarTarget / jarFilePrefix++".jar" + if( file.lastModified < lastModified ) + lib.createJar( file, exportedClasspath.files ) + else Some( file ) } def srcJar: Option[File] = taskCache[PackageJars]("srcJar").memoize{ - lib.createJar( - jarTarget / jarFilePrefix++"-sources.jar", nonEmptySourceFiles - ) + val file = jarTarget / jarFilePrefix++"-sources.jar" + if( file.lastModified < lastModified ) + lib.createJar( file, nonEmptySourceFiles ) + else Some( file ) } def docJar: Option[File] = taskCache[PackageJars]("docJar").memoize{ - lib.createJar( jarTarget / jarFilePrefix++"-javadoc.jar", scaladoc.toSeq ) + val file = jarTarget / jarFilePrefix++"-javadoc.jar" + if( file.lastModified < lastModified ) + lib.createJar( file, scaladoc.toSeq ) + else Some( file ) } } |