Switch remaining uses of ant over to sbt

- Modify `tools/scaladoc-diff` to use sbt instead of ant.

- Move `stability-test.sh` from `tools` to `scripts`. With the new
  build process without separate `locker` and `strap` stages, it doesn’t
  make sense to call this script without first setting up the proper
  test environment in a CI build.

- Replace the use of `build.number` in `bootstrap` with a new
  `SHA-NIGHTLY` mode for `baseVersionSuffix`.

- Make `partest` call sbt instead of ant for initializing the classpath
  and use the new classpath location (`quick` instead of `pack`).

2 files changed, 34 insertions, 4 deletions

diff --git a/scripts/jobs/integrate/bootstrap b/scripts/jobs/integrate/bootstrap
index 86ba67bd8b..bd509061b7 100644
--- a/scripts/jobs/integrate/bootstrap
+++ b/scripts/jobs/integrate/bootstrap
@@ -327,9 +327,10 @@ determineScalaVersion() {
     if [ -z "$scalaTag" ]
     then
       echo "No tag found, building nightly snapshot."
-      parseScalaProperties "build.number"
-      SCALA_VER_BASE="$version_major.$version_minor.$version_patch"
-      SCALA_VER_SUFFIX="-$(git rev-parse --short HEAD)-nightly"
+      $SBT_CMD $sbtArgs 'set baseVersionSuffix in Global := "SHA-NIGHTLY"' generateBuildCharacterPropertiesFile
+      parseScalaProperties "buildcharacter.properties"
+      SCALA_VER_BASE="$maven_version_base"
+      SCALA_VER_SUFFIX="$maven_version_suffix"
       SCALADOC_SOURCE_LINKS_VER=$(git rev-parse HEAD)
 
       # TODO: publish nightly snapshot using this script - currently it's a separate jenkins job still running at EPFL.
@@ -540,7 +541,7 @@ bootstrap() {
       dist/mkQuick
   mv build/quick build/strap
   mv quick1 build/quick
-  tools/stability-test.sh
+  $scriptsDir/stability-test.sh
 
   # TODO: create PR with following commit (note that release will have been tagged already)
   # git commit versions.properties -m"Bump versions.properties for $SCALA_VER."
diff --git a/scripts/stability-test.sh b/scripts/stability-test.sh
new file mode 100644
index 0000000000..f017ac0842
--- /dev/null
+++ b/scripts/stability-test.sh
@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+#
+
+declare failed
+
+echo "Comparing build/quick/classes and build/strap/classes"
+for dir in library reflect compiler; do
+  # feel free to replace by a more elegant approach -- don't know how
+  if diff -rw -x '*.css' \
+              -x '*.custom' \
+              -x '*.gif' \
+              -x '*.js' \
+              -x '*.layout' \
+              -x '*.png' \
+              -x '*.properties' \
+              -x '*.tmpl' \
+              -x '*.tooltip' \
+              -x '*.txt' \
+              -x '*.xml' \
+              build/{quick,strap}/classes/$dir
+  then
+    classes=$(find build/quick/classes/$dir -name '*.class' | wc -l)
+    printf "%8s: %5d classfiles verified identical\n" $dir $classes
+  else
+    failed=true
+  fi
+done
+
+[[ -z $failed ]] || exit 127