Switch Windows CI build to sbt (w/ some sbt build improvements)

- Use sbt in `integrate/windows`: This essentially combines the Unix CI
  jobs `validate/publish-core` and `validate/test`, first publishing a
  local release built with STARR and then building a new version with
  that and running all tests on it.

- Unify repository handling across build scripts: A new function
  `generateRepositoriesConfig` in `common`, based on the existing code
  in `integrate/bootstrap`, writes the `repositories` file for sbt,
  either with or without an extra bootstrap repository for resolving a
  previously built version. It is used in all CI scripts to ensure that
  artifacts are only resolved through the sanctioned proxies and
  upstream repositories.

- The repository URL arguments in `setupPublishCore` and
  `setupValidateTest` are now optional as well. These commands are used
  without a URL from `integrate/windows`, which publishes to `local`
  instead of a temporary remote repository.

- `testAll` is now a task instead of a command. It runs the same
  sequence of sub-tasks as before but does not propagate failures
  immediately. It always runs all subtasks and reports errors at the
  end.

- The `generateBuildCharacterPropertiesFile` task now includes all
  properties from `versions.properties` (whose values have potentially
  been overwritten with `-D` options) in `buildcharacter.properties`.

1 files changed, 5 insertions, 2 deletions

diff --git a/scripts/jobs/validate/test b/scripts/jobs/validate/test
index dd36c5db18..9938319dd8 100755
--- a/scripts/jobs/validate/test
+++ b/scripts/jobs/validate/test
@@ -4,6 +4,9 @@ baseDir=${WORKSPACE-`pwd`}
 scriptsDir="$baseDir/scripts"
 . $scriptsDir/common
 
+generateRepositoriesConfig $prRepoUrl
+SBT="$SBT_CMD -Dsbt.override.build.repos=true -Dsbt.repository.config=$sbtRepositoryConfig"
+
 case $prDryRun in
 
   yep)
@@ -15,12 +18,12 @@ case $prDryRun in
     # build quick using STARR built upstream, as specified by scalaVersion
     # (in that sense it's locker, since it was built with starr by that upstream job);
     # and run JUnit tests, partest, OSGi tests, MiMa and scaladoc
-    $SBT_CMD \
+    $SBT \
        -Dstarr.version=$scalaVersion \
        --warn \
        "setupValidateTest $prRepoUrl" \
        $testExtraArgs \
-       testAll
+       testAll | grep -v "was too long to be displayed in the webview, and will be left out"
 
     ;;