sbt keen to re-download snapshot dependency on every update #1091
Description
steps
$ cat project/build.properties
sbt.version=0.13.1
$ cat build.sbt
scalaVersion := "2.11.0-SNAPSHOT"
resolvers += Opts.resolver.sonatypeSnapshots
Run $ sbt clean ++2.11.0-SNAPSHOT compile multiple times.
problem
Each time scala-library.jar and scala-reflect.jar are downloaded.
original report
This is making working with scala snapshots unbearable. Maybe this will turn out to be my doing, but I'm desperate enough to ask. If this is some unfortunate default, consider the claimed bug that it is the default.
% cat build.sbt
resolvers in Global += Opts.resolver.sonatypeSnapshots
scalaVersion in Global := "2.11.0-SNAPSHOT"
libraryDependencies += "org.scala-lang" % "scala-reflect" % scalaVersion.value
% sbt update
[info] Set current project to root-2014-01-18_scala_2 (in build file:/Users/paulp/scratch/2014-01-18_scala_2/)
[info] Updating {file:/Users/paulp/scratch/2014-01-18_scala_2/}root-2014-01-18_scala_2...
[info] Resolving jline#jline;2.11 ...
[info] downloading https://oss.sonatype.org/content/repositories/snapshots/org/scala-lang/scala-library/2.11.0-SNAPSHOT/scala-library-2.11.0-20140118.024846-520.jar ...
[info] [SUCCESSFUL ] org.scala-lang#scala-library;2.11.0-SNAPSHOT!scala-library.jar (15297ms)
[info] downloading https://oss.sonatype.org/content/repositories/snapshots/org/scala-lang/scala-reflect/2.11.0-SNAPSHOT/scala-reflect-2.11.0-20140118.024846-519.jar ...
[info] [SUCCESSFUL ] org.scala-lang#scala-reflect;2.11.0-SNAPSHOT!scala-reflect.jar (13974ms)
[info] Done updating.
[success] Total time: 38 s, completed Jan 18, 2014 3:28:02 PM
% sbt update
[info] Set current project to root-2014-01-18_scala_2 (in build file:/Users/paulp/scratch/2014-01-18_scala_2/)
[info] Updating {file:/Users/paulp/scratch/2014-01-18_scala_2/}root-2014-01-18_scala_2...
[info] Resolving jline#jline;2.11 ...
[info] downloading https://oss.sonatype.org/content/repositories/snapshots/org/scala-lang/scala-library/2.11.0-SNAPSHOT/scala-library-2.11.0-20140118.024846-520.jar ...
[info] [SUCCESSFUL ] org.scala-lang#scala-library;2.11.0-SNAPSHOT!scala-library.jar (18217ms)
[info] downloading https://oss.sonatype.org/content/repositories/snapshots/org/scala-lang/scala-reflect/2.11.0-SNAPSHOT/scala-reflect-2.11.0-20140118.024846-519.jar ...
[info] [SUCCESSFUL ] org.scala-lang#scala-reflect;2.11.0-SNAPSHOT!scala-reflect.jar (16273ms)
[info] Done updating.
[success] Total time: 40 s, completed Jan 18, 2014 3:28:56 PM